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definition:volt-var [2018/12/20 20:08] admin |
definition:volt-var [2020/09/16 21:41] (current) |
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| In order to maintain a stable grid voltage, it is desired that inverters be able to supply or absorb reactive power to/from the grid. One way to achieve this is to have the inverter supply or absorb reactive power in response to fluctuations in grid voltage. | In order to maintain a stable grid voltage, it is desired that inverters be able to supply or absorb reactive power to/from the grid. One way to achieve this is to have the inverter supply or absorb reactive power in response to fluctuations in grid voltage. | ||
| HECO RULE 14H/CPUC RULE 21 is requiring all certified grid-support inverters, or smart inverters, shall support a Volt/VAr auto-regulation function. | HECO RULE 14H/CPUC RULE 21 is requiring all certified grid-support inverters, or smart inverters, shall support a Volt/VAr auto-regulation function. | ||
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| In this mode, the reactive power will be regulated by a curve of reactive power versus grid voltage automatically. The registers or setpoints for regulating System reactive power and PF will be both ignored by the inverter. | In this mode, the reactive power will be regulated by a curve of reactive power versus grid voltage automatically. The registers or setpoints for regulating System reactive power and PF will be both ignored by the inverter. | ||