| 直驱式风力发电系统的三相Z源并网逆变器建模与控制 |
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| 引用本文： | 李杰,王得利,陈国呈,宋丹,马祎炜.直驱式风力发电系统的三相Z源并网逆变器建模与控制[J].电工技术学报,2009,24(2). |
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| 作者姓名： | 李杰 王得利 陈国呈 宋丹 马祎炜 |
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| 作者单位： | 上海大学上海市电站自动化技术重点实验室,上海,200072 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金，上海市教委重点科研项目 |
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| 摘 要： | 提出将新型的三相Z源逆变器应用于直驱式风力并网发电系统中,并将传统三相PWM并网逆变器模型和等效的Z网络模型结合,建立了三相Z源并网逆变器的数学模型,分析了直通占空比改变对系统的影响,提出了在并网条件下获取稳定的Z网络电容电压和解耦的d、q轴网侧电流分量的控制策略,并给出了外环电压设定值的约束条件.实验结果证实了理论分析的正确性和控制策略的有效性.
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| 关 键 词： | 三相Z源并网逆变器 数学建模 直驱式风力发电 直接电流控制 |
Modeling and Control of Three-Phase Z-Source Inverter for Direct-Drive Wind Generation System |
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| Li Jie,Wang Deli,Chen Guocheng,Song Dan,Ma Yiwei.Modeling and Control of Three-Phase Z-Source Inverter for Direct-Drive Wind Generation System[J].Transactions of China Electrotechnical Society,2009,24(2). |
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| Authors: | Li Jie Wang Deli Chen Guocheng Song Dan Ma Yiwei |
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| Affiliation: | Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 China |
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| Abstract: | In this paper, the novel three-phase Z-source inverter is applied in direct-drive wind generation system. Mathematical model of three-phase Z-source inverter is proposed by combining the traditional PWM rectifier model and equivalent model of the Z-network. How variational shoot-through duty ratio affects the system is analyzed. The control method of acquiring stable Z-network capacitor voltage and decoupled d-q axis current is proposed, and constraint condition of set value of voltage loop is presented. Th... |
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| Keywords: | Three-phase Z-source inverter mathematical modeling direct-drive wind power generation direct current control |
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