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中文摘要：
为了控制不同类型的铁磁谐振过电压,通过向量分析方法详细分析了铁磁谐振过压的产生及控制机理,并基于此提出了一种采用全控高速电力电子开关的铁磁谐振过电压柔性控制方法。搭建了铁磁谐振柔性控制试验平台,基于该平台得到了几种电力系统典型的铁磁谐振过电压,并对这几种典型铁磁谐振过电压进行了柔性控制试验研究。结果表明：提出的铁磁谐振柔性控制方法能够在0.12 s内将电力系统中常见的基频、分频和高频铁磁谐振过电压控制至正常水平,且控制后的电压谐波满足IEEE 519—1992标准。该方法简单有效,具有现场实际运用的潜力。
英文摘要：
To control different types of ferroresonance, we discussed the mechanism of ferroresonance and its control through vector analysis, and then proposed a flexible control method for ferroresonance overvoltage using all-controllable high-speed power electronic switches based on the discussion. We also built a laboratory platform to simulate several kinds of typical ferroresonance overvoltage in power systems, and tested the presented flexible control method with the overvoltage. The results show that the flexible control method is able to control fundamental, sub-harmonic, and harmonic ferroresonance in less than 0.12 s. The harmonics of the controlled ferroresonance overvoltages are all within the limitation indicated in IEEE 519—1992 standard. The flexible control method is simple and effective, and has the potential for applications in power systems.
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