新型单相光伏逆变器电流连续控制集模型预测功率解耦控制  

Power Decoupling Control for a New Single-phase Photovoltaic Inverter Based onCurrent Continuous Control Set Model Prediction

作　　者：程巍 茆美琴[1] 汪海军 张榴晨 江迅 CHENG Wei;MAO Mmeiqin;WANG Haijun;ZHANG Liuchen;JIANG Xun(Photovoltaic System Engineering Research Center,Ministry of Education(Hefei University of Technology),HeFei 230009,Anhui Province,China;University of New Brunswick,New Brunswick E3B5A3,Canada)

机构地区：[1]教育部光伏系统工程研究中心(合肥工业大学),安徽省合肥市230009 [2]新不伦瑞克大学,加拿大新不伦瑞克省E3B5A3

出　　处：《中国电机工程学报》2023年第24期9655-9667,共13页Proceedings of the CSEE

基　　金：国家自然科学基金(面上项目)(51677050);高等学校学科创新引智计划项目(BP0719039)。

摘　　要：传统单相光伏逆变器直流侧存在固有低频纹波功率问题。对此,文中提出一种基于输入电流的连续控制集模型预测的新型单相光伏逆变器有源功率解耦控制方法。与现有线性控制方法相比,所提出的控制算法综合了连续控制集模型预测控制和自动功率解耦控制的优点,较好地抑制了直流侧谐波,提高了系统的动态性、元件参数漂移和电网电压失真的适应性。最后,于硬件在环实时仿真系统搭建新型单相光伏逆变器仿真模型并且研制1kW的样机,实验结果验证所提控制算法的有效性。There is an inherent low-frequency ripple power problem on the DC side of traditional single-phase photovoltaic inverters.In this regard,an active power decoupling control method based on input current continuous control set model prediction is proposed for the new single-phase photovoltaic inverter.Compared with the existing linear control method,the proposed control strategy combines the advantage of continuous control set model predictive control with automatic power decoupling,resulting in better mitigating DC side harmonics as well as faster system dynamics,and enhancing the adaptability of component parameter drift and grid voltage distortion.Finally,a new single-phase photovoltaic inverter simulation model is built in the hardware-in-the-loop real-time simulation system and a 1kW prototype is developed.The experimental results verify the effectiveness of the proposed control algorithm.

关 键 词：光伏逆变器 纹波功率 功率解耦 模型预测 

分 类 号：TM46[电气工程—电器]