超高压磁控式并联电抗器仿真建模方法

Modeling of Extra-high Voltage Magnetically Controlled Shunt Reactor

从系统角度分析了可控电抗器在超高压和特高压电网中的多种作用和应用前景;结合江陵换流站500kV磁控式并联电抗器示范工程,分析了其磁路结构和工作原理,通过理论推导得出了磁控式可控电抗器的数学模型;在此基础上,提出了复杂磁路建模新方法——磁路分解法,并建立了磁控式并联电抗器(magnetically controlled shunt reactor,MCSR)仿真模型。文章给出了10kVMCSR原理样机的试验结果,并与软件仿真结果进行对比分析,验证了仿真模型的正确性。文中提出的磁路分解仿真建模法具有原理清晰、建模简便、模型精确、工程适用的特点,适用于电力系统电磁暂态计算,为超/特高压MCSR的分析提供了必要的仿真手段。

From power system point of view, the multiple functions and application prospects of controllable shunt reactor in EHV and UHV power grid are analyzed; with 500kV magnetically controlled shunt reactor （MCSR） demonstration project in Jiangling converter station, China, the magnetic circuit structure and working principles of MCSR are analyzed, and the mathematic model of MCSR are deduced; on the basis of above, a new method of modeling complex magnetic circuit - magnetic circuit decomposition approach is proposed, and simulation model of MCSR is established. In order to verify the accuracy of the simulation model, the test results of 10 kV prototype and simulation results are compared, the experiments verify the accuracy of the simulation model. The proposed magnetic circuit decomposition approach is clear in principle, easy in modeling, precise in simulation result, applicable in engineering, suitable for power system electromagnetic transient calculation, and provides necessary simulation means for UHV and EHV MCSR analysis.