光伏并网逆变器有限状态模型预测电流控制.pdf

第 35 卷 增刊 中 国 电 机 工 程 学 报 Vol.35 Supplement Sep.30, 2015 190 2015 年 9 月 30 日 Proceedings of the CSEE ©2015 Chin.Soc.for Elec.Eng. DOI ：10.13334/j.0258-8013.pcsee.2015.S.026 文章编号：0258-8013 (2015) S-0190-07 中图分类号：TM 464 光伏并网逆变器有限状态模型预测电流控制 金楠，胡石阳，崔光照，姜素霞 (郑州轻工业学院电气信息工程学院，河南省 郑州市 450002) Finite State Model Predictive Current Control of Grid-connected Inverters for PV Systems JIN Nan, HU Shiyang, CUI Guangzhao, JIANG Suxia (College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, Henan Province, China) ABSTRACT: Through coordinate transformation, the 0 引言 predictive model of the inverter output currents is proposed in 近年来，化石能源不断减少，环境污染加重， the two phase static αβ frame. The cost function is used to assess different voltage vectors of the inverter and predict all 风能、太阳能等新能源的使用可以促进节能减排， possible output currents. The voltage vector which minimizes 降低环境污染。光伏并网逆变器作为光伏发电的关 the cost function is selected. Then the corresponding switching 键设备，直接影响输出的电能质量，因而得到广泛 state is applied at the next sampling time to track reference 研究。 currents quickly. The proposed strategy do not need to use the 目前，并网逆变器控制技术已经成为电力电子 traditional PWM modulator and the inner current loop. Only once coordinate transformation is needed to calculate the 领域的研究热点。传统的控制方法包括线性控制方 optimal switching state, so the strategy has small amount of 法，如基于比例积分(proportional integral，PI)调节 calculation and easy to be implemented. Simulation and 的脉冲宽度调制(p