光伏发电微型逆变器建模与控制方法研究

doi:10.16182/j.issn1004731x.joss.201703030

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (3): 690-697.doi: 10.16182/j.issn1004731x.joss.201703030

• 仿真应用工程 • 上一篇

光伏发电微型逆变器建模与控制方法研究

刘卫亮¹, 李春来², 刘长良¹, 王印松¹, 林永君¹, 马良玉¹, 陈文颖¹

1.华北电力大学新能源电力系统国家重点实验室,保定 071003;
2.青海省光伏发电并网技术重点实验室,西宁 810008

收稿日期:2015-05-29 修回日期:2015-08-24 出版日期:2017-03-08 发布日期:2020-06-02
作者简介:刘卫亮(1983-),男,河北衡水,博士生,讲师,研究方向为新能源与微电网技术;李春来(1980-),男,辽宁朝阳,硕士,高工,研究方向为新能源技术。
基金资助:
华北电力大学中央高校科研业务费项目(2015ZD17),国家电网公司科技项目(2014-Z-Y34A)

Modeling and Control Method of Photovoltaic Micro-Inverter

Liu Weiliang¹, Li Chunlai², Liu Changliang¹, Wang Yinsong¹, Lin Yongjun¹, Ma Liangyu¹, Chen Wenying¹

1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China;
2. Key Laboratory of Grid-Connected Photovoltaic Technology of Qinghai Province, Xining 810008, China

Received:2015-05-29 Revised:2015-08-24 Online:2017-03-08 Published:2020-06-02

摘要/Abstract

摘要： 光伏发电微型逆变器能够解决集中式逆变器可靠性差、效率低的问题,有着良好的应用前景。针对一种采取反激式拓扑结构的光伏发电微型逆变器,建立了其小信号分析模型。考虑到将其应用于低压配电网时需具备防逆流功能,分别设计了最大功率跟踪模式与负载电流跟踪模式下的控制方法,并利用遗传算法进行了控制器参数优化。仿真与试验表明,所提出的控制方法可使微型逆变器稳定地工作于最大功率跟踪模式与负载电流跟踪模式,并能够降低输出电流的谐波含量。

关键词: 光伏发电, 防逆流, 微型逆变器, 最大功率跟踪

Abstract: Photovoltaic micro-inverter can solve the poor reliability and low efficiency problem of centralized inverter, therefore it has a good application prospect. Small signal analysis model was established for the photovoltaic micro-inverter with flyback topology structure. Considering function of reverse current prevention being required when it was applied to the low voltage distribution network, control methods were disigned respectively for load current tracking mode and maximum power point tracking mode, and the controller parameters were optimized using genetic algorithm. Experimental and simulation results show that the micro-inverter can steadily work in two different modes, and reduce the harmonic content of output current.

Key words: photovoltaic power generation, reverse current prevention, micro-inverter, maximum power point tracking (MPPT)

中图分类号:

TM85

刘卫亮, 李春来, 刘长良, 王印松, 林永君, 马良玉, 陈文颖. 光伏发电微型逆变器建模与控制方法研究[J]. 系统仿真学报, 2017, 29(3): 690-697.

Liu Weiliang, Li Chunlai, Liu Changliang, Wang Yinsong, Lin Yongjun, Ma Liangyu, Chen Wenying. Modeling and Control Method of Photovoltaic Micro-Inverter[J]. Journal of System Simulation, 2017, 29(3): 690-697.

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光伏发电微型逆变器建模与控制方法研究

Modeling and Control Method of Photovoltaic Micro-Inverter

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