Research on Design Method of Half-Wavelength Tuning Net

Abstract

It is required that human turning net compensate electrical distance to Half-Wavelength Line(HWLL) when power transmission line distance do not reach to HWLL. Turning net effect on the system should be discussed in more details. The research focuses on the topology structure of turning net and proposes new type: inductance and Г distribution net. Compensate degree of HWLL is put forward for the first time as series compensate to show the relationship of tuning net parameter and transimission electrical character clearly. Through building electromagnetic transient model, the trend on overvoltage and secondary arc current of tuning net is got. The overvoltage of capacitor net is lowest but the secondary arc current is the highest. Г net effect is just between the capacitor and inductance net. The research provides theory base for choosing tuning net and optimizing parameters.