| 引用本文: | 杨 捷,金新民,吴学智,梁小广,宋高升,尹靖元.兆瓦级全功率风电并网变流器功率组件设计[J].电力自动化设备,2013,33(10): |
| YANG Jie,JIN Xinmin,WU Xuezhi,LIANG Xiaoguang,SONG Gaosheng,YIN Jingyuan.Power stack design of MW-level full-power grid-connected converter for wind power generation[J].Electric Power Automation Equipment,2013,33(10): |
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| 摘要: |
| 在考虑交流电流纹波的基础上，提出了一种估算精度高的功率损耗简单分析方法；直流电容温升与电容电流纹波密切相关，考虑功率组件间杂散参数对电容纹波电流分布的影响，提出了一种分析电容纹波电流的简单方法。最后，设计了包含功率器件、散热器、直流电容、电流传感器等器件的1 MW标准功率组件，并对所设计的功率组件进行了全面的测试。测试结果验证了所提出功率损耗估算方法和直流电容纹波分析方法的有效性，可满足兆瓦级全功率风电变流器的设计要求。 |
| 关键词: 风电 变流器 功率组件 功率损耗估算 直流电容纹波电流 测试 兆瓦级 设计 |
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| 基金项目:国家高技术研究发展计划（863计划）资助项目（2011AA05A306 ） |
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| Power stack design of MW-level full-power grid-connected converter for wind power generation |
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YANG Jie1, JIN Xinmin1, WU Xuezhi1, LIANG Xiaoguang2, SONG Gaosheng2, YIN Jingyuan1
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1.School of Electrical Engineering，Beijing Jiaotong University，Beijing 100044，China;2.Mitsubishi Electric & Electronic（Shanghai） Co.，Ltd.，Shanghai 200245，China
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| Abstract: |
| With the consideration of AC output ripple current，a method of power loss estimation with high accuracy is proposed. As the temperature rise of DC-link capacitor is closely associated with its ripple current，a simplified method is proposed to calculate the ripple current，which considers the influence of the parasitic parameters among power stacks on the ripple current of DC-link capacitor. A prototype of 1 MW power stack consisting of power device，radiator，DC-link capacitor and current sensor etc. is designed and totally tested. Test results show that，the proposed methods are effective，meeting the design requirements of MW-level full-power grid-connected converter for wind power generation. |
| Key words: wind power electric converters power stack power loss estimation DC link capacitor ripple current testing MW-level design |
