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SmartLogger3000 User Manual

This document describes the SmartLogger3000 and SmartModule1000A01 in terms of installation, electrical connections, system operation, maintenance, and troubleshooting. BOM number: 02312SCU, 02312SCU-001, 02312SCU-002, 02312SCU-003, 02312SCU-004, 02312SCU-005, 02312SCU-006, 02312SCU-007, 02312SCU-008, 02312SCU-009, 02312SCU-010, 02312SGF, 02312SGG, 02312SGK and 02312SGJ.

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Setting SUN2000 Parameters

Setting SUN2000 Parameters

Procedure

  1. Set access parameters.

    • Method 1: Click Auto. Search to connect to the solar inverter.
    • Method 2: Click Add Devices, set access parameters, and click Add Devices.
    Figure 6-18 Setting access parameters

    Parameter

    Description

    Device type

    Set this parameter to SUN2000.

    Connection mode

    • If the solar inverter uses the MBUS for communication, set this parameter to MBUS.
    • If the solar inverter uses RS485 for communication, set this parameter to the COM port connected to the solar inverter.

    Address

    Set this parameter to the communication address of the solar inverter.

  2. Set running parameters and click Submit.

    Before setting the running parameters of the solar inverter, ensure that the DC side of the solar inverter is energized.

    Figure 6-19 Setting running parameters

Running Parameters

Grid Parameters

Parameter

Description

Grid Code

Set this parameter based on the grid code of the country or region where the inverter is used and the inverter application scenario.

Isolation settings

Set the working mode of the inverter based on the grounding status at DC side and the connection to the power grid.

Output mode

Specifies whether the inverter output has a neutral wire based on the application scenario.

PQ mode

If this parameter is set to PQ mode 1, the maximum AC output power equals the maximum apparent power. If this parameter is set to PQ mode 2, the maximum AC output power equals the rated output power.

Automatically start upon grid recovery

Specifies whether to allow the inverter to automatically start after the power grid recovers.

Grid connected recovery time from grid faults (s)

Specifies the time after which the inverter begins restarting after the power grid recovers.

Grid reconnection voltage upper limit (V)

The standards of certain countries and regions require that after the inverter shuts down for protection due to a fault, if the power grid voltage is higher than Grid reconnection voltage upper limit, the inverter is not allowed to reconnect to the grid.

Grid reconnection voltage lower limit (V)

The standards of certain countries and regions require that after the inverter shuts down for protection due to a fault, if the power grid voltage is lower than Grid reconnection voltage lower limit, the inverter is not allowed to reconnect to the grid.

Grid reconnection frequency upper limit (Hz)

The standards of certain countries and regions require that after the inverter shuts down for protection due to a fault, if the power grid frequency is higher than Grid reconnection frequency upper limit, the inverter is not allowed to reconnect to the grid.

Grid reconnection frequency lower limit (Hz)

The standards of certain countries and regions require that after the inverter shuts down for protection due to a fault, if the power grid frequency is lower than Grid reconnection frequency lower limit, the inverter is not allowed to reconnect to the grid.

Reactive power compensation (cosφ-P) trigger voltage (%)

Specifies the voltage threshold for triggering reactive power compensation based on the cosφ-P curve.

Reactive power compensation (cosφ-P) exit voltage (%)

Specifies the voltage threshold for exiting reactive power compensation based on the cosφ-P curve.

Protection Parameters

Parameter

Description

Insulation resistance protection threshold (MΩ)

To ensure device safety, the inverter detects the insulation resistance of the input side with respect to ground when it starts a self-check. If the detected value is less than the preset value, the inverter does not connect to the grid.

Voltage unbalance protection threshold (%)

Specifies the inverter protection threshold when the power grid voltage is unbalanced.

Phase protection point (º)

The Japanese standard requires that during passive islanding detection, protection should be triggered if an abrupt voltage phase change is detected.

Phase angle offset protection

The standards of certain countries and regions require that the inverter needs to be protected when the phase angle offset of the power grid three phases exceeds a certain value.

10-min overvoltage protection threshold (V)

Specifies the 10-minute overvoltage protection threshold.

10-min overvoltage protection duration (ms)

Specifies the 10-minute overvoltage protection duration.

Level-N OV protection (Hz)

Specifies the level-N grid overvoltage protection threshold.

Level-N OV protection time (ms)

Specifies the level-N grid overvoltage protection duration.

Level-N UV protection (Hz)

Specifies the level-N grid undervoltage protection threshold.

Level-N UV protection time (ms)

Specifies the level-N grid undervoltage protection duration.

Level-N OF protection (Hz)

Specifies the level-N grid overfrequency protection threshold.

Level-N OF protection time (ms)

Specifies the level-N grid overfrequency protection duration.

Level-N UF protection (Hz)

Specifies the level-N grid underfrequency protection threshold.

Level-N UF protection time (ms)

Specifies the level-N grid underfrequency protection duration.

N is 1, 2, 3, 4, 5, or 6.

Feature Parameters

Parameter

Description

MPPT multi-peak scanning

When the inverter is used in scenarios where PV strings are greatly shaded, set this parameter to Enable, and then the inverter will perform MPPT scanning at regular intervals to locate the maximum power.

MPPT multi-peak scan interval (min)

Specifies the MPPT scanning interval.

RCD enhancement

RCD refers to the residual current of the inverter to the ground. To ensure device and personal safety, RCD should be limited to the specified value in the standard. If an AC switch with a residual current detection function is installed outside the inverter, this function should be enabled to reduce the residual current generated when the inverter is running, thereby preventing the AC switch from misoperations.

Night-time reactive power output

In some specific application scenarios, a power grid company requires that the inverter can perform reactive power compensation at night to ensure that the power factor of the local power grid meets requirements.

This parameter is displayed when Isolation settings is set to Input ungrounded, with TF.

PID protection at night

When the inverter outputs reactive power at night and this parameter is set to Enable, the inverter will shut down automatically if it detects abnormal status of the PID compensation.

Strong adaptability

If the power grid short-circuit capacity or PV plant installed capacity is less than 3, the power grid quality will be affected if the power grid impedance is too high, which may cause the inverter to malfunction. In this case, if the inverter is required to work properly, set this parameter to Enable.

Power quality optimization mode

If this parameter is set to Enable, the inverter output current harmonics will be optimized.

PV module type

This parameter is used to set different types of PV modules and the shutdown time of the concentration PV module. If the concentration PV modules are shaded, the power drops drastically to 0 and the inverter shuts down. The energy yield would be affected since it takes too long for the power to resume and inverter to restart. The parameter does not need to be set for crystalline silicon and filmy PV modules.

  • If this parameter is set to Crystalline silicon or Film, the inverter automatically detects the power of PV modules when they are shaded and shuts down if the power is too low.
  • When concentration PV modules are used:
    • If this parameter is set to CPV 1, the inverter can quickly restart in 60 minutes if the input power of PV modules drops drastically due to shading.
    • If this parameter is set to CPV 2, the inverter can quickly restart in 10 minutes if the input power of PV modules drops drastically due to shading.

Built-in PID compensation direction

When the external PID module compensates the PID voltage for the PV system, set Built-in PID compensation direction to the actual compensation direction of the PID module so that the inverter can output reactive power at night.

This parameter is displayed when PV module type is set to Crystalline silicon. Select PV–positive offset for P-type PV modules. Select PV+ negative offset for N-type PV modules.

PID running mode

Specifies the operation mode of the inverter built-in PID.

PID nighttime off-grid repair

Specifies whether to enable the PID nighttime off-grid repair.

PID daytime off-grid repair

Specifies whether to enable the PID daytime off-grid repair.

String connection mode

Specifies the connection mode of PV strings.

  • When PV strings connect to the inverter separately (All PV strings separated), there is no need to set this parameter. The inverter can automatically detect the connection mode of the PV strings.
  • When PV strings connect to one another in parallel outside the inverter and then connect to it independently (All PV strings connected), set this parameter to All PV strings connected.

Automatic OFF due to communication interrupted

The standards of certain countries and regions require that the inverter must shut down after the communication is interrupted for a certain time.

If Automatic OFF due to communication interrupted is set to Enable and the inverter communication is interrupted for a specified time (set by Communication interruption duration), the inverter will automatically shut down.

Communication interruption duration (min)

Specifies the duration for determining communication interruption. Used for automatic shutdown for protection in case of communication interruption.

Automatic ON due to communication resumed

If this parameter is set to Enable, the inverter automatically starts after communication recovers. If this parameter is set to Disable, the inverter needs to be started manually after communication recovers.

Soft start/boot time (s)

Specifies the duration for the power to gradually increase when the inverter starts.

AFCI

The North American standard requires that the inverter should have DC arc detection function.

AFCI detection adaptive mode

Adjusts the sensitivity of arc detection.

AFCI self-test

Send the AFCI self-check command manually.

Current error during the scan (A)

To prevent inaccurate scanning caused by sunlight change, the current change of PV strings operating properly should be monitored when the I-V curves of PV strings are being scanned. When the current exceeds the specified value, it is determined that the sunlight changes. The I-V curves should be scanned again.

OVGR associated shutdown

If this parameter is set to Enable, the inverter shuts down after receiving the OVGR signal. If this parameter is set to Disable, the inverter does not shut down after receiving the OVGR signal.

Dry contact function

Identifies the dry contact signals from the SmartLogger.

Set this parameter to OVGR for OVGR signals, and set it to NC for other signals. This parameter is displayed if the Japanese grid code is selected.

Commanded shutdown hold after power recovery

The standards of certain countries and regions require that if the inverter is shut down after receiving a command and powered on again after power recovers, it should still be in commanded shutdown state.

Night-time hibernation

The inverter monitors PV strings at night. If this parameter is set to Enable, the monitoring function of the inverter will hibernate at night to reduce power consumption.

MBUS communication

For inverters that support RS485 communication and MBUS communication, you are advised to set this parameter to Disable to reduce power consumption.

RS485-2 communication

If this parameter is set to Enable, the RS485-2 port can be used. If the port is not used, you are advised to set this parameter to Disable to reduce power consumption.

Delay upgrade

This parameter is mainly used in the upgrade scenarios where the PV power supply is disconnected at night due to no sunlight or unstable at dawn or dusk due to poor sunlight.

After the inverter starts to upgrade, if Delay upgrade is set to Enable, the upgrade package is loaded first. After the PV power supply recovers and the activation conditions are met, the inverter automatically activates the upgrade.

String monitor

The inverter monitors PV strings in real time. If any PV string is abnormal (such as the PV string is shaded or the electric energy yield decreases), the inverter generates an alarm to remind maintenance personnel to maintain the PV string in a timely manner.

If PV strings are often shaded, you are advised to set String monitor to Disable to prevent false alarms.

String detection low power delay (min)

Specifies the delay time for generating abnormal string alarms when the inverter detects that a PV string is working with low power. This parameter is mainly used in the scenario where PV strings are shaded for a long time in the morning and evening, and is used to prevent false alarms.

String detection high power delay (min)

Specifies the delay time for generating abnormal string alarms when the inverter detects that a PV string is working with high power.

String detection power segment division percentage (%)

Specifies the thresholds for determining whether a PV string is working with high power or low power. This parameter is used to distinguish the working status of PV strings.

String detection reference asymmetric coefficient

Specifies the threshold for determining PV string exception. The false alarms caused by fixed shadow shading can be controlled by changing this parameter.

String detection starting power percentage (%)

Specifies the threshold for starting PV string exception detection. The false alarms caused by fixed shadow shading can be controlled by changing this parameter.

OFF at 0% power limit

If this parameter is set to Enable, the inverter shuts down after receiving the 0% power limit command. If this parameter is set to Disable, the inverter does not shut down after receiving the 0% power limit command.

Maximum apparent power (kVA)

Specifies the output upper threshold for the maximum apparent power to adapt to the capacity requirements of standard and customized inverters.

Maximum active power (kW)

Specifies the output upper threshold for the maximum active power to adapt to different market requirements.

Adjust total energy yield (kWh)

Specifies the initial energy yield of the inverter. This parameter is used in inverter replacement scenarios. Set the initial energy yield of the new inverter to the total energy yield of the old inverter to ensure continuous statistics of cumulative energy yield.

Duration for determining short-time grid disconnection (ms)

The standards of certain countries and regions require that the inverter should not disconnect from the power grid if the power grid experiences a short-time failure. After the fault is rectified, the inverter output power needs to be quickly restored.

Buzzer

If this parameter is set to Enable, the buzzer sounds when the DC input cable is incorrectly connected. If this parameter is set to Disable, the buzzer does not sound when the DC input cable is incorrectly connected.

LVRT

LVRT is short for low voltage ride-through. When the grid voltage is abnormally low for a short time, the inverter cannot disconnect from the power grid immediately and has to work for some time.

Threshold for triggering LVRT (V)

Specifies the threshold for triggering LVRT. The threshold settings should meet the local grid standard.

LVRT reactive power compensation factor

During LVRT, the inverter needs to generate reactive power to support the power grid. This parameter is used to set the reactive power generated by the inverter.

HVRT

HVRT is short for high voltage ride-through. When the grid voltage is abnormally high for a short time, the inverter cannot disconnect from the power grid immediately and has to work for some time.

Threshold for triggering HVRT (V)

Specifies the threshold for triggering HVRT. The threshold settings should meet the local grid standard.

HVRT reactive power compensation factor

During HVRT, the inverter needs to generate reactive power to support the power grid. This parameter is used to set the reactive power generated by the inverter.

VRT exit hysteresis threshold

Specifies the LVRT/HVRT recovery threshold.

LVRT undervoltage protection shield

Specifies whether to shield the undervoltage protection function during LVRT.

Grid voltage protection shield during VRT

Specifies whether to shield the undervoltage protection function during LVRT or HVRT.

Grid voltage jump triggering threshold (%)

Specifies the LVRT or HVRT threshold for triggering a transient voltage jump of a power grid. A transient voltage jump indicates that the inverter cannot immediately disconnect from the power grid when the power grid is abnormal due to transient changes.

Zero current due to power grid fault

Specifies the working mode of the solar inverter during LVRT or HVRT. If this parameter is set to Enable, the output current of the solar inverter will be less than 10% of the rated current during LVRT or HVRT.

Active islanding protection

Specifies whether to enable the active islanding protection function.

Passive islanding protection

Specifies whether to enable the passive islanding protection function.

Voltage rise suppression

The standards of certain countries and regions require that when the output voltage exceeds a certain value, the inverter must suppress voltage rise by outputting reactive power and reducing active power.

Voltage rise suppressing reactive power adjustment point (%)

The standards of certain countries and regions require that the inverter generate a certain amount of reactive power when the output voltage exceeds a certain value.

Voltage rise suppressing active power derating point (%)

The standards of certain countries and regions require that the active power of the inverter be derated according to a certain slope when the output voltage exceeds a certain value.

Voltage rise suppression P-U curve

The standards of certain countries and regions require that the P-U curve be set.

Voltage rise suppression Q-U curve

The standards of certain countries and regions require that the Q-U curve be set.

Frequency change rate protection

Set this parameter to Enable to protect the inverter when the grid frequency changes too fast.

Frequency change rate protection threshold (Hz/s)

Specifies the frequency change rate protection threshold.

Frequency change rate protection duration (s)

The inverter is protected when the grid frequency change duration exceeds the value.

Soft start time after grid failure (s)

Specifies the time for the power to gradually increase when the inverter restarts after the power grid recovers.

Power Adjustment Parameters

Parameter

Description

Remote power schedule

If this parameter is set to Enable, the inverter responds to the scheduling instruction from the remote port. If this parameter is set to Disable, the inverter does not respond to the scheduling instruction from the remote port.

Schedule instruction valid duration (s)

Specifies the time for maintaining the scheduling instruction.

When this parameter is set to 0, the scheduling instruction takes effect permanently.

Maximum apparent power (kVA)

Specifies the output upper threshold for the maximum apparent power to adapt to the capacity requirements of standard and customized inverters.

Maximum active power (kW)

Specifies the output upper threshold for the maximum active power to adapt to different market requirements.

OFF at 0% power limit

If this parameter is set to Enable, the inverter shuts down after receiving the 0% power limit command. If this parameter is set to Disable, the inverter does not shut down after receiving the 0% power limit command.

Active power change gradient (%/s)

Specifies the change speed of the inverter active power.

Derated by fixed active power (kW)

Adjusts the active power output of the inverter by fixed value.

Derated by active power % (%)

Adjusts the active power output of the inverter by percentage.

If this parameter is set to 100, the inverter outputs based on the maximum output power.

Reactive power change gradient (%/s)

Specifies the change speed of the inverter reactive power.

Plant active power gradient (min/100%)

Specifies the rate of active power rise due to sunlight changes.

Average active power filtering time (ms)

Specifies the period of active power rise due to sunlight changes. This parameter is used with Plant active power gradient.

PF (U) voltage detection filtering time (s)

Specifies the time for filtering the grid voltage in the PF-U curve.

Reactive power adjustment time (s)

Specifies the adjustment time for the reactive power to reach the target value during reactive power adjustment.

Power factor

Specifies the power factor of the inverter.

Reactive power compensation (Q/S)

Specifies the reactive power output by the inverter.

Night-time reactive power compensation (Q/S)

During the reactive power compensation at night, the reactive power is scheduled by percentage.

Night-time reactive power output

In some specific application scenarios, a power grid company requires that the inverter can perform reactive power compensation at night to ensure that the power factor of the local power grid meets requirements.

Enable reactive power parameters at night

When this parameter is set to Enable, the inverter outputs reactive power based on the setting of Reactive power compensation at night. Otherwise, the inverter executes the remote scheduling command.

Night-time reactive power compensation (kVar)

During the reactive power compensation at night, the reactive power is scheduled by fixed value.

Overfrequency derating

If this parameter is set to Enable, the active power of the inverter will be derated according to a certain slope when the grid frequency exceeds the frequency that triggers overfrequency derating.

Frequency for triggering overfrequency derating (Hz)

The standards of certain countries and regions require that the output active power of inverters be derated when the power grid frequency exceeds a certain value.

Frequency for exiting overfrequency derating (Hz)

Specifies the frequency threshold for exiting overfrequency derating.

Cutoff frequency of overfrequency derating (Hz)

Specifies the frequency threshold for cutting off overfrequency derating.

Cutoff power of overfrequency derating (%)

Specifies the power threshold for cutting off overfrequency derating.

Frequency detection filtering time (ms)

Specifies the frequency detection filter time.

Overfrequency derating power drop gradient (%/s)

Specifies the decrease rate of the overfrequency derating power.

Power recovery gradient of overfrequency derating (%/min)

Specifies the recovery rate of the overfrequency derating power.

Voltage derating

If this parameter is set to Enable, the active power of the inverter will be derated according to a certain slope when the grid voltage exceeds the voltage that triggers overfrequency derating.

Voltage derating start point (V)

Specifies the start point for voltage derating.

Cut-off point of voltage derating (V)

Specifies the stop point for voltage derating.

Voltage derating cut-off power (V)

Specifies the power threshold for cutting off voltage derating.

Communication disconnection fail-safe

In the inverter export limitation scenario, if this parameter is set to Enable, the inverter will perform active power derating by percentage when the communication between the inverter and the SmartLogger or Smart Dongle is disconnected for more than the time specified by Communication disconnection detection time.

Communication disconnection detection time (s)

Specifies the fail-safe detection time for the disconnection between the inverter and the SmartLogger or Smart Dongle.

Active power output limit for fail-safe (%)

Specifies the derating value of the inverter active power by percentage.

Apparent power baseline (kVA)

Adjusts the apparent output baseline of the inverter.

Active power baseline (kW)

Adjusts the active output baseline of the inverter.

Frequency modulation control

The standards of certain countries and regions require that if the power grid frequency fluctuates around a certain value, the inverter needs to fine-tune the active power output based on Frequency modulation control droop to help stabilize the power grid frequency. In this case, set this parameter to Enable

Adjustment ratio of frequency modulation control

Specifies the droop of the active power output.

Underfrequency rise power

The standards of certain countries and regions require that if the power grid frequency is lower than Frequency for triggering of underfrequency rise power, the inverter needs to increase the active power output to help increase the power grid frequency. In this case, set this parameter to Enable.

Frequency for triggering of underfrequency rise power (Hz)

Specifies the frequency threshold of Underfrequency rise power.

Power recovery gradient of underfrequency rise (%/min)

Specifies the recovery rate of Underfrequency rise power.

Cutoff frequency of underfrequency rise power (Hz)

Specifies the cutoff frequency of Underfrequency rise power.

Cutoff power of underfrequency rise power (%)

Specifies the cutoff power of Underfrequency rise power.

Frequency for exiting of underfrequency rise power (Hz)

Specifies the exit frequency of Underfrequency rise power.

PV String Access Detection

  • PV string access detection applies to large-scale commercial ground PV plants with PV strings facing the same direction.
  • In AC or DC power limiting scenarios:
    • If the PV string access type has not been identified, PV string access type will be displayed as Disconnection. The PV string access type can be identified only when the solar inverters restore to the non-power limiting state and the current of all connected PV strings reaches the startup current.
    • If the PV string access type has been identified, when a certain PV string connected to the 2-in-1 terminals is lost, no alarm will be generated. If a certain PV string connected to the 2-in-1 terminals is restored, the access type cannot be identified. You can determine whether both 2-in-1 PV strings are restored only when the PV string current reaches Startup current for 2-in-1 detection.
  • After setting the parameters, you can go to the Running Info. tab page to check whether the PV string connection status is normal.
Table 6-2 Parameter description

Parameter

Parameter Description

PV String Access Detection

PV String Access Detection is set to Disable by default. After solar inverters are connected to the power grid, set PV String Access Detection to Enable.

Startup current

When the current of all connected PV strings reaches the preset value, the PV string access detection function is enabled.

NOTE:

Startup current setting rules:

  • Startup current = Isc (Stc) x 0.6 (rounded up). For details about Isc (Stc), see the PV module nameplate.
  • Default startup current (5 A): applicable to the scenarios where the short-circuit current Isc (Stc) is greater than 8 A for the monocrystalline and polycrystalline PV modules.

Startup current for 2-in-1 detection

When the current of a PV string reaches Startup current for 2-in-1 detection, the PV string is automatically identified as 2-in-1.

You are advised to retain the default settings.

PV string N access type

NOTE:

N is the DC input terminal number of the solar inverter.

Set this parameter based on the type of the PV string connected to DC input terminal N of the solar inverter. Currently, the options are as follows: Automatic identification (default value), Disconnection, Single PV string, and 2-in-1.

You are advised to retain the default value. If the value is incorrectly set, the PV string access type may be incorrectly identified and alarms may be generated by mistake for the PV string access status.

Tracking System

If a PV string uses a tracking system with a controller, set tracking system parameters on the Tracking System tab page.

Characteristic Curves

Characteristic Curve Name

Description

LVRT Characteristic Curve

Configure this characteristic curve based on the power grid standard.

NOTE:

The SmartLogger supports only the 10-second LVRT characteristic curve configuration. If the power grid standard requires that the duration of LVRT be greater than 10s, LVRT Characteristic Curve is not displayed for the grid code.

[Voltage Rise Suppression]Q-U curve

  1. Set Voltage Rise Suppression to Enable.
  2. Configure this characteristic curve based on the power grid standard.

[Voltage Rise Suppression]P-U curve

  1. Set Voltage Rise Suppression to Enable.
  2. Configure this characteristic curve based on the power grid standard.
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Updated: 2020-03-23

Document ID: EDOC1100108365

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