Simulation impedance characteristic of reactor

LI Xiaoman, ZHANG Le

(CSR ZhuZhou Electric Company Limit, ZhuZhou 412001, China)

Abstract: The locomotive reactor is an important element in the highspeed rail traction converters filter. Simulating impedance spectrum features of the reactor is an important indicator for design, which is the decided by the reactor filter range and the output characteristics of converter. Aiming at improving the security and reliability of the design, manufacture and operation. Taking the locomotive reactor as the research object, the impedance spectrum features of the reactor were simulated. Equivalent lumped circuit model was established, the capacitance, inductor, impedance of the reactor was calculated using the finite element analysis in the high frequency. Then the simulation curve for impedance spectrum features of the reactor was obtained using the value through electric equivalent model. At last, impedance spectrum features test experiment of the reactor was completed using sweep frequency analyzer. Compared to the test curve and the simulation cure, the results indicate that the simulation method is correct and the simulation is accurate. The research results provide an important basis for the reliability design and operation safety of locomotive reactor.

Key words: reactor; distribution capacitance; inductance; modeling