基于STATCOM装置的500kV变电站无功补偿系统构建与仿真

Construction and Simulation of 500kV Substation Reactive Power Compensation System Based On the STATCOM Device

静止同步补偿器(STATCOM)能够快速连续地提供容性和感性无功功率,是500kV变电站较为理想的无功补偿装置。基于STATCOM装置稳态运行时的无功功率和直流电压的表达式,获得对其进行开环控制调整无功功率的方法。最后在PSCAD/EMTDC仿真环境建立基于STATCOM装置的500kV变电站无功补偿系统,对STATCOM装置的运行机理及开环控制性能进行了验证。

Static synchronous compensator （STATCOM） can rapidly and continuously provide the capacitive and inductive reactive power, thus it is an ideal reactive compensation equipment of 500kV substation. Based on the expression of the reactive power and DC voltage under the STATCOM steady-state operation, it can obtain open-loop control and adjust reactive power method for the STATCOM device. Last in PSCAD / EMTDC simulation environment, the reactive power compensation system is constructed based on the STATCOM device, the operation mechanism and the open-loop control performance of the STATCOM device was verified.