串联电抗器及其电抗率的选取

为了抑制谐波的危害,在电容器回路中串联电抗器是有效的技术措施。分析与计算结果表明,因串联电抗器的电抗率不同,其流进电容器回路的谐波电流也截然不同。据此提出电抗率选取原则与方法,电抗率选取宜根据主谐波次数、电容器组容量、母线短路容量以及装置的运行条件等因素综合考虑。

Selection of Series Reactor and Its Reactance Ratio

In order to suppress the danger of harmonics,one effective measure is to put reactor in series in the capacitor circuit.Analysis and simulation results show that different harmonic currents flowing into the capacitor circuit is different due to different reactance ratio of series reactor.Based on this conclusion,this paper proposes the principle and method of selecting the reactance ratio and it is thought that selection of reactance ratio depends on such factors as the main harmonic frequency,capacitor capacity,short-circuit capacity of bus and permissible operation conditions of the device.