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SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1) User Manual

This document describes the SUN2000-175KTL-H0,SUN2000-185KTL-INH0, and SUN2000-185KTL-H1 in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting. BOM number: 01074671, 01074684, 01074687
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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).
Operations Related to the Special User

Operations Related to the Special User

If you log in to the app as Special User, you can set grid parameters, protection parameters, feature parameters, and power adjustment parameters for the SUN2000.

Setting Grid Parameters

Procedure

  1. Choose Function Menu > Settings > Grid Parameters to access the parameters setting screen.

    Figure 7-5 Power grid parameters (special user)

Parameters

No.

Parameter

Description

1

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.

2

Auto start upon grid recovery

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

3

Grid connection duration after grid recovery (s)

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

4

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.

5

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.

6

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.

7

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.

8

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

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

9

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

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

Setting Protection Parameters

Procedure

  1. Choose Function Menu > Settings > Protect Parameters to go to the parameter setting screen.

    Figure 7-6 Protection parameters (special user)

Parameters

No.

Parameter

Description

1

Unbalance voltage protection (%)

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

2

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.

3

10 minute OV protection (V)

Specifies the 10-minute overvoltage protection threshold.

4

10 minute OV protection time (ms)

Specifies the 10-minute overvoltage protection duration.

5

Level-1 OV protection (V)

Specifies the level-1 overvoltage protection threshold.

6

Level-1 OV protection time (ms)

Specifies the level-1 overvoltage protection duration.

7

Level-2 OV protection (V)

Specifies the level-2 overvoltage protection threshold.

8

Level-2 OV protection time (ms)

Specifies the level-2 overvoltage protection duration.

9

Level-1 UV protection (V)

Specifies the level-1 undervoltage protection threshold.

10

Level-1 OF protection time (ms)

Specifies the level-1 undervoltage protection duration.

11

Level-2 UV protection (V)

Specifies the level-2 undervoltage protection threshold.

12

Level-2 UV protection time (ms)

Specifies the level-2 undervoltage protection duration.

13

Level-1 OF protection (Hz)

Specifies the level-1 overfrequency protection threshold.

14

Level-1 OF protection time (ms)

Specifies the level-1 overfrequency protection duration.

15

Level-1 UF protection (Hz)

Specifies the level-1 underfrequency protection threshold.

16

Level-1 UF protection time (ms)

Specifies the level-1 underfrequency protection duration.

17

Level-2 UF protection (Hz)

Specifies the level-2 underfrequency protection threshold.

18

Level-2 UF protection time (ms)

Specifies the level-2 underfrequency protection duration.

Setting Feature Parameters

Procedure

  1. Choose Function Menu > Settings > Feature Parameters to access the settings screen.

    Figure 7-7 Feature parameters (special user)

Parameters

No.

Parameter

Description

Remarks

1

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.

-

2

LVRT threshold (V)

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

This parameter is displayed when LVRT is set to Enable.

3

LVRT reactive power compensation power 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.

  • This parameter is displayed when LVRT is set to Enable.
  • For example, if this parameter is set to 2, the reactive power generated by the inverter is 20% of the rated power when the AC voltage drops by 10% during LVRT.

4

LVRT

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.

-

5

HVRT triggering threshold (V)

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

This parameter is displayed when HVRT is set to Enable.

6

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.

7

VRT grid voltage protect shield

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

This parameter is displayed when LVRT or HVRT is set to Enable.

8

Active islanding

Specifies whether to enable the active islanding protection function.

-

9

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.

-

10

Voltage rise suppression reactive 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.

  • This parameter is displayed when Voltage rise suppression is set to Enable.
  • The value of Voltage rise suppression active derating point must be greater than that of Voltage rise suppression reactive adjustment point.

11

Voltage rise suppression active 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.

12

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.

-

Setting Power Adjustment Parameters

Procedure

  1. Choose Function Menu > Settings > Power Adjustment to go to the parameter setting screen.

    Figure 7-8 Power adjustment parameters (special user)

Parameters

No.

Parameter

Description

Remarks

1

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.

-

2

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.

3

Maximum active power (kW)

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

-

4

Shutdown 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.

-

5

Active power change gradient (%/s)

Specifies the change speed of the inverter active power.

-

6

Fixed active power derating (kW)

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

-

7

Active power percentage derating (%)

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.

8

Reactive power output at night

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.

-

9

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.

This parameter is displayed when Reactive power output at night is set to Enable.

10

Reactive power compensation at night (kVar)

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

This parameter is displayed when Reactive power output at night and Enable reactive power parameters at night are set to Enable.

11

Reactive power change gradient (%/s)

Specifies the change speed of the inverter reactive power.

-

12

Plant active power gradient (min/100%)

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

-

13

Filter duration for average active power (ms)

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

-

14

Power factor

Specifies the power factor of the inverter.

-

15

Reactive power compensation (Q/S)

Specifies the reactive power output by the inverter.

-

16

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.

-

17

Trigger frequency of over frequency 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.

  • This parameter is displayed when Overfrequency derating is set to Enable.
  • When setting this parameter, ensure that the following condition is met: Quit frequency of over frequency deratingTrigger frequency of over frequency derating < Cutoff frequency of overfrequency derating.

18

Quit frequency of over frequency derating (Hz)

Specifies the frequency threshold for exiting overfrequency derating.

19

Cutoff frequency of overfrequency derating (Hz)

Specifies the frequency threshold for cutting off overfrequency derating.

20

Cutoff power of overfrequency derating (%)

Specifies the power threshold for cutting off overfrequency derating.

21

Power recovery gradient of overfrequency derating (%/min)

Specifies the recovery rate of the overfrequency derating power.

22

PF (U) voltage detection filter time (s)

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

-

23

Apparent power baseline (kVA)

Adjust the apparent output baseline of the inverter.

-

24

Active power baseline (kW)

Adjusts the active output baseline of the inverter.

-

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Updated: 2019-09-21

Document ID: EDOC1100083285

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