【摘要】 文章建立了含有谐波源的变电站10 kV无功补偿电容器回路模型,研究谐波源参数三要素对电力电容器回路合闸过渡过程的影响。文中利用ATP-EMTP电磁暂态仿真软件,代入实际参数对该模型进行建模仿真,得出一系列过电压和过电流仿真波形,对不同谐波参数下合闸过渡过程中的过电压和过电流作出比较。理论分析和建模仿真结果表明,谐波参数对过渡过程的过电压和过电流影响较大,具体影响程度取决于回路参数和谐波情况。更多还原

【Abstract】 A circuit model of 10 kV reactive power compensation circuit of substation containing harmonic sources is established to study influence of three factors of ratings of harmonic sources on transition process of closing of power capacitor circuit.The model is established and simulated by the use of ATP-EMTP electromagnetic transit simulation software and by actual ratings to obtain a series of simulation oscillogram of overvoltage and overcurrent and make comparison of overvoltage and overcurrent of transition procedure of closing operation at different harmonic ratings.It is shown through theoretical analysis and simulation that harmonic ratings have big influence on overvoltage and overcurrent of transition procedure and the specific influence extent is depended on ratings of circuit and harmonic.更多还原