Based on the analysis of control strategy of the system, this paper used respectively voltage oriented and stator flux oriented vector control in grid side and rotor side of the converter.
Voltagecontrol and reactive power optimization are effective means to increase rate of qualified voltage, reduce grid losses, and improve the system stability.
电网的电压控制和无功优化是提高电压合格率，降低网损，提高系统稳定性的有效手段。
3
Reactive power control system of county grid is a very beneficial tool to reduce the loss of active power and upgrade the level of voltage of county grid.