| 引用本文: | 李建林,胡书举,付勋波,许洪华.适合直接驱动型风力发电系统的DRC混合箝位变流器研究[J].电力自动化设备,2009,(1): |
| .DRC-clamped inverter for direct-drive wind power system[J].Electric Power Automation Equipment,2009,(1): |
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| 摘要: |
| 针对直接驱动型风力发电系统中需要的全功率变流器,提出了一种基于箝位二极管、电阻、电容DRC(Diode Resistor Capacitor)混合箝位的三电平变流器,并采用载波相移正弦脉宽调制CPS-SPWM(Carrierplaase shifted SPWM)技术产生控制脉冲.仿真结果表明,该变流器输出波形正确,等效开关频率提高了1倍,最低次载波谐波移至载波频率2倍的位置,并具有自动平衡电容电压,电容充放电电流呈周期性变化且无电流尖峰冲击等优点. |
| 关键词: 直接驱动 风力发电 DRC混合箝位 载波相移 多电平 |
| DOI： |
| 分类号:TM464 |
| 基金项目:中国博士后科学基金? |
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| DRC-clamped inverter for direct-drive wind power system |
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LI Jianlin HU Shuju FU Xunbo XU Honghua
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| Abstract: |
| For the full power inverter needed in direct-drive wind power system,a DRC(Diode Resistor Capacitor) clamped three-level inverter is proposed,in which CSP-SPWM(Carrier Phase Shifted PWM) technology is used to generate control pulses.Simulation results show that,the output voltage is fine,the e- quivalent switching frequency is doubled,the lowest harmonic component is two times of carrier frequency, the capacity voltage is balanced automatically and the charge/discharge current of capacity varies periodicall... |
| Key words: direct-drive wind power generation diode resistor capacitor clamping carrier phase shift multi-level |
