manual:module-based:recommended_grid_support_settings [Sinexcel ESS knowledge base]

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====== Recommended grid-support settings ======

===== Scope =====
This instruction guides how to set the grid-support functions required by
  * HECO Rule 14H
  * CPUC Rule 21
  * IEEE 1547

This document covers the following models
  * PWS1-50K-NA
  * PWS1-100K-NA
  * PWS1-150K-NA
  * PWS1-250K-NA
  * PWS1-500KTL-NA


===== Anti-islanding =====
^Parameter on HMI (legacy name before M1330)  ^Meaning  ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 2 -> Anti-islanding  |to dis-/enable Anti-islanding  |Enabled  |Enabled  |Enabled  |
===== Frequency and Voltage Ride-through =====
==== Enabling ====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 2 -> FVRT enable | to dis-/enable frequency and voltage ride-through |Enabled |Enabled |Enabled |
|Setting -> AC -> Page 2 -> FVRT current limit |to dis-/enable current limiting in ride-through |Disabled  |Enabled  |Unknown  |

==== Frequency Ride-through ====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 6 -> OFR2 voltage| Over-frequency region 2 boundary, bias of nominal frequency |<WRAP>
  * 5 (+60Hz) for Molokai, Lanai  
  * 4 (+60Hz) for Oahu, Maui, Hawaii
</WRAP>  |
|Setting -> AC -> Page 6 -> OFR2  time| Over-frequency region 2 trip time, -0.5~-1s later than ride-through until |0.1s, no ride through |
|Setting -> AC -> Page 6 -> OFR1 voltage| Over-frequency region 1 boundary, bias of nominal frequency |3 (+60Hz)  |
|Setting -> AC -> Page 6 -> OFR1  time| Over-frequency region 1 trip time, -0.5~-1s later than ride-through until |20 s, making ride-through 19.98 s |
|Setting -> AC -> Page 6 -> UFR1 voltage| Under-frequency region 1 boundary, bias of nominal frequency|-3 (+60Hz)|
|Setting -> AC -> Page 6 -> UFR2 voltage| Under-frequency region 1 boundary, bias of nominal frequency|<WRAP>
  * -10 (+60Hz) for Molokai, Lanai
  * -4 (+60Hz) for Oahu, Maui, Hawaii
</WRAP> |
|Setting -> AC -> Page 6 -> UFR1 time |Under-frequency region 1 trip time, -0.5~-1s later than ride-through until |20 s, making ride-through 19.98 s|
|Setting -> AC -> Page 6 -> UFR2 time |Under-frequency region 2 trip time, -0.5~-1s later than ride-through until |0.1s, no ride through |
|Setting -> AC -> Page 6 -> Restore upper limit freq |Grid reconnect threshold frequency-upper limit, bias of nominal frequency| 0.1 (+60Hz) |
|Setting -> AC -> Page 6 -> Restore lower limit freq |Grid reconnect threshold frequency-lower limit, bias of nominal frequency| -0.1 (+60Hz) |

==== Voltage Ride-through ====

^Parameter on HMI  (legacy name before M1330) ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 5 -> OVR# voltage	|Over-voltage region # boundary, ratio of nominal voltage	|OVR1 voltage: 1.1 (*480V)\\ OVR2 voltage: 1.2 (*480V)	|
|Setting -> AC -> Page 5 -> OVR# time	|Over-voltage region # trip time, 0.02s later than ride-through until	|OVR1 time: 0.94 s, making ride-through until 0.92s\\ OVR2 time: 0.1 s, no ride-through	|
|Setting -> AC -> Page 5 -> UVR# voltage	|Under-voltage region # boundary, ratio of nominal voltage	|UVR1 voltage: 0.88 (*480V)\\  UVR2 voltage: 0.7 (*480V)\\  UVR3 voltage: 0.5 (*480V)	|
|Setting -> AC -> Page 5 -> UVR# time	|Under-voltage region # trip time, 0.02s later than ride-through until	|UVR1 time: 20 s, making ride-through until 19.98s\\ UVR2 time: 11 s, making ride-through until 10.98s\\ UVR3 time: 0.1 s, no ride-through	|


===== Soft Start Ramp Rate (SS) and Normal Ramp Rate (RR) =====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 2 -> P change mode	|How the power changes when instructed, step or with ramp	|Set to "Ramp rate" to enable SS and RR|
|Setting -> AC -> Page 1 -> Soft-Start reconnection ramp rate	|SS	|<0.0032 (*Pnom/s)|
|Setting -> AC -> Page 1 -> Grid reconnection delay	|Grid reconnection delay	|300 s|
|Setting -> AC -> Page 1 -> Normal Ramp Rate |RR	|1 (*Pnom/s)|


===== Volt-VAr =====

^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 1 -> AC operation mode | to enable Votl-VAr control |Set to V/VAr control to apply Votl-VAr control |
|Setting -> AC -> Page 7 -> Volt/var point 1 |V1 at Q1, ratio of nominal voltage |0.92 (*480V) |
|Setting -> AC -> Page 7 -> Volt/var point 2 |V2 at Q2, ratio of nominal voltage |0.97 (*480V) |
|Setting -> AC -> Page 7 -> Volt/var point 3 |V3 at Q3, ratio of nominal voltage |1.03 (*480V) |
|Setting -> AC -> Page 7 -> Volt/var point 4 |V4 at Q4, ratio of nominal voltage |1.07 (*480V) |
|Setting -> AC -> Page 7 -> Max. inductive reactive regulation |Q4, ratio of nominal capacity |0.3 (*Pnom) |
|Setting -> AC -> Page 7 -> Max. capacitive reactive regulation |Q1, ratio of nominal capacity |0.3 (*Pnom) |
|Setting -> AC -> Page 7 -> Initial. inductive reactive regulation 3 |Q3, ratio of nominal capacity |0 (*Pnom) |
|Setting -> AC -> Page 7 -> Initial. capacitive reactive regulation 2 |Q2, ratio of nominal capacity |0 (*Pnom) |
|Setting -> AC -> Page 7 -> Volt/var reaction time |Volt-VAr response time |1 s |
|Setting -> AC -> Page 7 -> Volt/var Vref |Vref, ratio of nominal voltage |1 (*480V)| 


===== Volt-Watt and Freq-Watt =====
==== Enabling  ====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 2 -> Active power regulation	|Set to Volt control to apply Volt-Watt	|Unaware of present CPUC/HECO politics	|
|Setting -> AC -> Page 2 -> Active power regulation	|Set to Freq control to apply Freq-Watt	|Unaware of present CPUC/HECO politics	|
|Setting -> AC -> Page 2 -> Active power regulation	|Set to V/F control to apply Volt-Watt and Freq-Watt at the same time.  Yet Freq-Watt prior to Volt-Watt	|Unaware of present CPUC/HECO politics	|

==== Volt-Watt  ====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 8 -> Volt/Watt V1	|Volt-Watt V1	|1.06 (*480V)	|1.06 (*480V)	|1.06 (*480V)	|
|Setting -> AC -> Page 8 -> Volt/Watt ramp rate	|useless, cancelled in V1440 |0	|
|Setting -> AC -> Page 8 -> Volt/Watt delay	|Volt/Watt return delay	|60 s	|60 s	|60 s	|
|Setting -> AC -> Page 8 -> Volt/Watt V2	|Volt-Watt V2	|1.1 (*480V)	|1.1 (*480V)	|1.1 (*480V)	|
|Setting -> AC -> Page 8 -> Volt/Watt P1	|Volt-Watt P1 	|1 (*power setpoint)	|1 (*power setpoint)	|1 (*power setpoint)	|
|Setting -> AC -> Page 8 -> Volt/Watt P2	|Volt-Watt P2	|0 (*power setpoint)	|0 (*power setpoint)	|0 (*power setpoint)	|
|Setting -> AC -> Page 8 -> Volt/Watt response time	|Volt-Watt response time|10 s	|10 s	|10 s	|

==== Freq-Watt ====
^Parameter on HMI (legacy name before M1330)  ^Meaning   ^HECO requirement  ^CA rule 21 requirement  ^IEEE1547 requirement  ^
|Setting -> AC -> Page 8 -> Freq/Watt point	|Fstart, the frequency Freq-Watt supposed to start	|0.25 (+60Hz)	|
|Setting -> AC -> Page 8 -> Freq/Watt ramp rate	|Freq-Watt slope	|0.05 (*power setpoint/Hz)	|
|Setting -> AC -> Page 8 -> Freq-Watt response time	|Freq-Watt response time	|0.50 s	|