UPFC装置参数设计研究

设计了一套统一潮流控制器装置,确定它的装置容量后,按其功率模型确定了串联侧注入输电线路的电压幅值、流过串联变换器的电流、并联侧变换器向系统注入的电流、串并联侧交换的有功功率、UPFC串联侧出口电压和并联侧接入母线电压的运行约束值。一套15kVA用于动模系统试验装置的仿真结果证明了在满足运行约束条件下,本文所设计的UPFC能快速有效改善系统的电压和潮流。

Design of Parameters of UPFC Equipment

This paper uses the continuous operation maximum current and the continuous operation maximum voltage to define the series side converter sizes, accompanying with the reactive power required to maintain the shunt bus voltage to define the shunt side converter sizes; When the transmission line voltage magnitude coming from the series converter, the current going through the series converter, the current coming from the shunt converter, the active power exchanging between the series and shunts converter, the line- side voltage of the series and the bus voltage of the shunts are within the required limits, the functions of UPFC can be brought to play completely. A test UPFC equipment, which will be used in dynamic analysis systems, is designed, simulation results demonstrate that, UPFC can improve the voltage and power flow of the system rapidly and effectively if all of the limits are satisfied.