Research on basic characteristics of thyristor-controlled reactance series compensation by adjustable coupling

To know application value of thyristor controlled reactance series compensation by adjustable coupling,its fundamental performance must be studied.In the way of analysis theoretically,the characteristic,principle and the opted methods of the adjustable reactance device were obtained,and the material model of thyristor controlled reactance series compensation by adjustable coupling,and its characteristic of power adjusting and the optimal controlling method of tap-changing of the thyristor switches were proposed.Correctness of the theoretical analysis is proved by the test.By power adjusting calculation,thyristor controlled reactance series compensation by adjustable coupling comparing with TCSC,the needed capability of main facilities can be dramatically reduced.The result of primary study indicates that it has good characteristic of power adjusting and tap-changing transient.When it is only used to adjust power,its engineering cost is much lower than that of TCSC.