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SUN2000-(50KTL, 60KTL, 65KTL)-M0 User Manual

This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and SUN2000-65KTL-M0 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting.
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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 settings screen.

    Figure 7-5 Grid parameters (special user)

Parameter List

NOTE:

Vn represents the rated voltage and Fn represents the rated frequency.

No.

Parameter

Description

Remarks

1

Grid code

Set this parameter based on the grid code of the country or region where the SUN2000 is used and the SUN2000 application scenario.

N/A

2

Output mode

Indicates whether the SUN2000 output has a neutral wire.

Supported by the SUN2000-50KTL-M0 and SUN2000-60KTL-M0 only.

3

PQ mode

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

4

Auto start upon grid recovery

Specifies whether to allow the SUN2000 to automatically start after the power grid recovers.

N/A

5

Grid connection duration after power grid recovery

Specifies the waiting time for SUN2000 restart after the power grid recovers.

N/A

6

Grid reconnection voltage upper limit

The standards of certain countries and regions require that the SUN2000 must not export power to the power grid again when the grid voltage exceeds the value of Grid reconnection voltage upper limit after the SUN2000 shuts down due to a fault.

N/A

7

Grid reconnection voltage lower limit

The standards of certain countries and regions require that the SUN2000 must not export power to the power grid again when the grid voltage is below the value of Grid reconnection voltage lower limit after the SUN2000 shuts down due to a fault.

N/A

8

Grid reconnection frequency upper limit

The standards of certain countries and regions require that the SUN2000 must not export power to the power grid again when the grid frequency exceeds the value of Grid reconnection frequency upper limit after the SUN2000 shuts down due to a fault.

N/A

9

Grid reconnection frequency lower limit

The standards of certain countries and regions require that the SUN2000 must not export power to the power grid again when the grid frequency is below the value of Grid reconnection frequency lower limit after the SUN2000 shuts down due to a fault.

N/A

10

Reactive power compensation (cosφ-P) trigger voltage

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

N/A

11

Reactive power compensation (cosφ-P) exit voltage

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

N/A

Setting Protection Parameters

Procedure

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

    Figure 7-6 Protection parameters (special user)

Parameter List

NOTE:

Vn represents the rated voltage and Fn represents the rated frequency.

No.

Parameter

Description

1

Unbalance voltage protection

Specifies the SUN2000 protection threshold in the case of unbalanced power grid voltage.

2

Phase angle offset protection

The standards of certain countries and regions require that the SUN2000 needs to be protected when the three-phase angle offset of the power grid exceeds a certain value.

3

10 minute OV protection

Specifies the 10-minute overvoltage protection threshold.

4

10 minute OV protection time

Specifies the 10-minute overvoltage protection duration.

5

Level-1 OV protection

Specifies the level-1 overvoltage protection threshold.

6

Level-1 OV protection time

Specifies the level-1 overvoltage protection duration.

7

Level-2 OV protection

Specifies the level-2 overvoltage protection threshold.

8

Level-2 OV protection time

Specifies the level-2 overvoltage protection duration.

9

Level-1 UV protection

Specifies the level-1 undervoltage protection threshold.

10

Level-1 UV protection time

Specifies the level-1 undervoltage protection duration.

11

Level-2 UV protection

Specifies the level-2 undervoltage protection threshold.

12

Level-2 UV protection time

Specifies the level-2 undervoltage protection duration.

13

Level-1 OF protection

Specifies the level-1 overfrequency protection threshold.

14

Level-1 OF protection time

Specifies the level-1 overfrequency protection duration.

15

Level-2 OF protection

Specifies the level-2 overfrequency protection threshold.

16

Level-2 OF protection time

Specifies the level-2 overfrequency protection duration.

17

Level-1 UF protection

Specifies the level-1 underfrequency protection threshold.

18

Level-1 UF protection time

Specifies the level-1 underfrequency protection duration.

19

Level-2 UF protection

Specifies the level-2 underfrequency protection threshold.

20

Level-2 UF protection time

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)

Parameter List

Parameter

Description

Remarks

Communication interrupt shutdown

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

If Communication interrupt shutdown 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 resumed startup

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.

This parameter is displayed when Communication interrupt shutdown is set to Enable.

Communication interruption duration (min)

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

N/A

Soft start time (s)

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

N/A

LVRT

When the power grid voltage is abnormally low for a short time, the SUN2000 cannot disconnect from the power grid immediately and has to work for some time. This is called LVRT.

N/A

LVRT threshold (V)

Specifies the threshold for triggering LVRT.

The threshold settings should meet the local grid standard.

Vn represents the rated voltage.

LVRT undervoltage protection shield

Specifies whether to shield the undervoltage protection function during LVRT.

N/A

LVRT reactive power compensation power factor

During LVRT, the SUN2000 needs to generate reactive power to support the power grid. This parameter is used to set the reactive power generated by the SUN2000.

For example, if you set LVRT reactive power compensation power factor to 2, the reactive current generated by the SUN2000 is 20% of the rated current when the AC voltage drops by 10% during LVRT.

HVRT

When the power grid voltage is abnormally high for a short time, the SUN2000 cannot disconnect from the power grid immediately and has to work for some time. This is called high voltage ride-through (HVRT).

N/A

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.

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.

N/A

VRT exit hysteresis threshold

Specifies the LVRT/HVRT recovery threshold.

  • This parameter is displayed when LVRT or HVRT is set to Enable.
  • LVRT recovery threshold = LVRT threshold + VRT exit hysteresis threshold
  • HVRT recovery threshold = HVRT triggering threshold + VRT exit hysteresis threshold

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.

Active islanding

Specifies whether to enable the active islanding protection function.

N/A

Soft start time after grid failure (s)

Specifies the time for the power to gradually increase when the SUN2000 restarts after the power grid recovers.

N/A

Setting Power Adjustment Parameters

Procedure

  1. Choose Function Menu > Settings > Power Adjustment to access the settings screen.

    Figure 7-8 Power adjustment parameters (special user)

Parameter List

Table 7-5 Parameter description

No.

Parameter

Description

Remarks

1

Remote power schedule

If this parameter is set to Enable, the SUN2000 responds to the remote power scheduling instruction. If this parameter is set to Disable, the SUN2000 does not respond to the remote power scheduling instruction.

N/A

2

Schedule instruction valid duration

Specifies the duration within which the scheduling instruction is valid.

If the value is less than 60 seconds, the scheduling instruction is valid permanently.

3

Maximum active power

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

Pmax_limit is the upper limit of the maximum active power.

4

Shutdown at 0% power limit

If this parameter is set to Enable, the SUN2000 shuts down after receiving the 0% power limit command. If this parameter is set to Disable, the SUN2000 does not shut down after receiving the 0% power limit command.

N/A

5

Active power change gradient

Adjusts the change speed of the SUN2000 active power.

Adjust the active power based on the percentage of the rated apparent power.

6

Fixed active power derated

Adjusts the active power output of the SUN2000 to a fixed value.

Pmax_limit is the upper limit of the maximum active power.

7

Active power percentage derating

Adjusts the active power output of the SUN2000 to a percentage.

If this parameter is set to 100, the SUN2000 delivers power output based on the maximum output power.

8

Power factor

Adjusts the SUN2000 power factor.

N/A

9

Reactive power compensation (Q/S)

Adjusts the SUN2000 output reactive power.

N/A

10

Reactive power compensation at night (Q/S)

If Reactive power output at night is set to Enable, no PV input exists, and no remote scheduling instruction is delivered, the SUN2000 responds to this command.

N/A

11

Trigger frequency of over frequency derating

The standards of certain countries and regions require that the output active power of the SUN2000 be derated when the grid frequency exceeds a certain value.

Fn represents the rated frequency.

12

Quit frequency of over frequency derating

Specifies the frequency threshold for exiting overfrequency derating.

13

Recovery gradient of over frequency derating

Specifies the power recovery gradient for overfrequency derating.

N/A

14

Overfrequency derating

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

N/A

15

Cutoff frequency of overfrequency derating

Specifies the frequency threshold for cutting off overfrequency derating.

N/A

16

Cutoff power of overfrequency derating

Specifies the power threshold for cutting off overfrequency derating.

N/A

Updated: 2019-10-12

Document ID: EDOC1100016052

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