一种改进的混合级联多电平逆变器研究
Research of an Improved Multilevel Inverter of Hybrid Cascade
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摘要: 文章以实际功率器件的耐压值为基础,采用增加低压单元的混合级联拓扑,辅以优化的PWM算法,设计出了适用中高压场合的多电平逆变器方案。改进的混合级联多电平逆变器不但输出波形质量好,而且有效地解决了倒灌电流的问题。Abstract: Based on practical withstand voltage value of power switch,a scheme of multilevel inverter for middle-high voltage application was designed by adding lowvoltage hybrid cascade and using optimized PWM algorithm.The improved multilevel inverter of hybrid cascade can prevent reverse current and has good output wave.
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Key words:
- multilevel inverter /
- hybrid cascade /
- high power /
- reverse current
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