基于空间矢量调制的交流系统线路接口高频链路软开关变换器

M. Matsui, T. Kitano, S. Ohba, D. Xu
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引用次数: 7

摘要

针对高频链路软开关变换器,提出了一种基于空间矢量调制技术的开关模式生成算法。该系统具有完全软开关、输出级隔离、双向潮流等特点,适用于新能源系统(如带电池的光伏发电系统)与交流系统线路的对接。首先讨论了支持向量机技术应用中输出向量转移的限制。然后提出了一种适合软开关操作的模式。通过PSIM的仿真研究和基于DSP的原型系统的实验结果,验证了该方案的有效性。
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New space vector modulation scheme based high-frequency link soft-switching converter for AC system line interface
This paper proposes a new switching pattern generating algorithm based on SVM (space vector modulation) technique for a high-frequency link soft-switching converter. Because of its totally soft-switched operation, isolated output stage and bidirectional power flow, the proposed converter system is suited for interfacing a new energy system, such as a PV (photovoltaic) system having a battery, with AC system line. The restriction of output vector transition in applying SVM technique is discussed first. Then, a suitable pattern which satisfies soft-switching operation is proposed. The validity of the proposed scheme has been proved with simulation study using PSIM and experimental results with DSP based prototype system.
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