System and method for controlling reactive power in a power conversion system
AssigneeGeneral Electric Company
InventorsKathleen Ann O'Brien, Robert William Delmerico
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Abstract
A power conversion system includes a three-phase power converter electrically couplable to a photovoltaic power source for converting DC power to three-phase AC power; sensors for measuring voltage levels of the AC power at each phase; and a controller for generating and transmitting independent reactive power commands for each phase of the three-phase power converter based at least in part on the voltage levels and an existing voltage imbalance.
Claims18
A power conversion system comprising:
- a three-phase power converter electrically couplable to a photovoltaic power source for converting DC power to three-phase AC power;
- sensors for measuring voltage levels of the AC power at each phase;
- and
- a controller for generating and transmitting independent reactive power commands for each phase of the three-phase power converter based at least in part on the voltage levels and an existing voltage imbalance.
A method for controlling reactive power in a power network comprising:
- converting DC power to three-phase AC power;
- measuring voltage levels of the AC power at each phase;
- generating independent reactive power commands for each phase of the three-phase power converter based at least in part on the voltage levels and an existing voltage imbalance;
- and
- transmitting the independent reactive power commands for each phase to the power converter for controlling the reactive power.
A non-transitory computer-readable medium comprising computer-readable instructions of a computer program that, when executed by a processor, cause the processor to perform a method, the method comprising:
- converting DC power to three-phase AC power;
- measuring voltage levels of the AC power at each phase;
- generating independent reactive power commands for each phase of the three-phase power converter based at least in part on the voltage levels and an existing voltage imbalance;
- and
- transmitting the independent reactive power commands for each phase to the power converter for controlling the reactive power.
Dependencies are inferred from the claim text.