| 基于滞环控制的Z源三相全桥光伏并网系统的研究 |
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| 引用本文： | 尤鋆,黄金军,郑建勇,张先飞. 基于滞环控制的Z源三相全桥光伏并网系统的研究[J]. 太阳能学报, 2011, 32(5): 684-689 |
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| 作者姓名： | 尤鋆 黄金军 郑建勇 张先飞 |
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| 作者单位： | 东南大学电气工程学院,南京,210096;苏州市电气设备与自动化重点实验室,苏州,215123 |
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| 基金项目： | 国家高技术研究发展计划(863)项目 |
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| 摘 要： | 综合滞环和Z拓扑的控制特点,提出了一种适用于Z源三相全桥并网系统的电流滞环控制策略,根据全桥的特点,解决了直通时间的插入与各相同步的问题。由于定频控制,降低了开关损耗,易于滤波环节的设计。保留了滞环控制下动态响应快、精度高、稳定性好等特点,有效跟踪电网电压。各相独立控制,参考电流可独立设置。Z源的升压,增大系统并网电流,提高光伏系统并网功率。通过仿真与实验分析,证明该策略的可行性。
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| 关 键 词： | Z源逆变器 三相全桥 电流滞环 并网电流 直通时间 |
RESEARCH ON Z SOURCE BASED THREE-PHASE FULL-BRIDGE PHOTOVOLTAIC GRID-CONNECTED SYSTEM USING CURRENT HYSTERESIS CONTROL |
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| You Jun,Huang Jinjun,Zheng Jianyong,Zhang Xianfei. RESEARCH ON Z SOURCE BASED THREE-PHASE FULL-BRIDGE PHOTOVOLTAIC GRID-CONNECTED SYSTEM USING CURRENT HYSTERESIS CONTROL[J]. Acta Energiae Solaris Sinica, 2011, 32(5): 684-689 |
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| Authors: | You Jun Huang Jinjun Zheng Jianyong Zhang Xianfei |
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| Affiliation: | You Jun1,2,Huang Jinjun1,Zheng Jianyong1,Zhang Xianfei1,2(1.Department of Electrical Engineering,Southeast University,Nanjing210096,China,2.Laboratory of Electrical Equipment and Automation in Suzhou,Suzhou215123,China) |
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| Abstract: | Z-source based PV grid-connected systems,using hysteresis control in three-phase full-bridge circuit,inserting straight through time synchronously, was studied.By summarizing control features of both hysteresis and Z topology control,a fixed-frequency grid connected control strategy used in three-phase Z-source based PV systems was proposed.This control strategy was good at fast response,high accuracy,high stability,etc.Grid voltage was tracked effectively.Using fixed-frequency control,filter circuits was e... |
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| Keywords: | Z-source inverter three-phase full-bridge hysteresis control grid-connected current shoot through time |
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