计及采样噪声补偿的并网逆变器三矢量无模型预测电流控制方法

doi:10.16183/j.cnki.jsjtu.2023.499

上海交通大学学报 ›› 2025, Vol. 59 ›› Issue (10): 1523-1532.doi: 10.16183/j.cnki.jsjtu.2023.499

• 新型电力系统与综合能源 • 上一篇下一篇

计及采样噪声补偿的并网逆变器三矢量无模型预测电流控制方法

曹文平¹, 王尧¹, 张悦², 罗魁², 胡存刚¹, 芮涛³()

¹ 安徽大学电气工程与自动化学院, 合肥 230601
² 中国电力科学研究院, 北京 100192
³ 安徽大学互联网学院, 合肥 230601

收稿日期:2023-09-28 修回日期:2023-12-01 接受日期:2024-01-29 出版日期:2025-10-28 发布日期:2025-10-24
通讯作者: 芮涛,讲师,博士;E-mail:19057@ahu.edu.cn.
作者简介:曹文平(1969—),教授,博士生导师,从事电机和电力电子损耗机理、故障诊断、可靠性及效能改进研究.
基金资助:
2022年度国家重点实验室开放基金项目(NYB51202201697)

Three-Vector Model-Free Predictive Current Control Method for Grid-Connected Inverters with Sampling Noise Compensation

CAO Wenping¹, WANG Yao¹, ZHANG Yue², LUO Kui², HU Cungang¹, RUI Tao³()

¹ School of Electrical Engineering and Automation, Anhui University, Hefei 230601, China
² China Electric Power Research Institute, Beijing 100192, China
³ School of Internet, Anhui University, Hefei 230601, China

Received:2023-09-28 Revised:2023-12-01 Accepted:2024-01-29 Online:2025-10-28 Published:2025-10-24

摘要/Abstract

摘要：

针对基于查询表的并网逆变器无模型预测电流控制中存在电流纹波大、电流梯度更新停滞及采样噪声干扰等问题,本文提出一种计及采样噪声补偿的三矢量无模型预测电流控制方法.首先,在每个控制周期中,输出电流由3个电压矢量对应的电流梯度预测得到,并利用价值函数求解各矢量作用时间,以抑制电流纹波;其次,根据电压矢量与基本矢量坐标分量的重叠关系,通过两步更新策略消除梯度更新停滞现象;最后,针对采样噪声对电流梯度更新的影响,采用二阶广义积分器对梯度误差进行估计与补偿,从而提高电流梯度计算的准确性.仿真与实验结果验证了所提方法的可行性和有效性.

关键词: 并网逆变器, 无模型预测电流控制, 三矢量, 梯度更新停滞, 采样噪声补偿

Abstract:

To address the issues of large current ripple, stagnant current gradient update, and sampling noise interference in the model-free predictive current control method for grid-connected inverters based on look-up table, a three-vector model-free predictive current control method with sampling noise compensation is proposed. First, the output current of each control period is predicted by using the current gradient corresponding to the three-voltage vectors, and the action time of each vector is determined by a cost function to reduce the current ripple. Then, based on the overlapping relationship between the coordinate components of the three vector and the basic vector, a two-step updating method is used to eliminate the stagnation phenomenon. Finally, according to the impact of sampling noise on current gradient updating, a second-order generalized integrator is employed to estimate and compensate the gradient error, thereby improving the accuracy of current gradient. The feasibility and effectiveness of the method proposed is verified by simulation and experiment.

Key words: grid-connected inverter, model-free predictive current control, three-vector, gradient update stagnation, sampling noise compensation

中图分类号:

TM464

曹文平, 王尧, 张悦, 罗魁, 胡存刚, 芮涛. 计及采样噪声补偿的并网逆变器三矢量无模型预测电流控制方法[J]. 上海交通大学学报, 2025, 59(10): 1523-1532.

CAO Wenping, WANG Yao, ZHANG Yue, LUO Kui, HU Cungang, RUI Tao. Three-Vector Model-Free Predictive Current Control Method for Grid-Connected Inverters with Sampling Noise Compensation[J]. Journal of Shanghai Jiao Tong University, 2025, 59(10): 1523-1532.

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参考文献 21

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参数	值	参数	值
U_dc/V	350	L/mH	8
e/V	160	p	0.5
R/Ω	0.05	开关频率,f_s/kHz	10
T_s/ms	0.1	δ_α、δ_β	0.005

固定条件	测试条件	THD/%
固定条件	测试条件	TV-MPCC	C-MFPCC	TV-MFPCC	SOGI-TV-MFPCC
噪声1,L_A =L	i_ref=10 A	1.67	5.92	5.20	2.49
	i_ref=20 A	1.59	5.26	5.07	2.38
i_ref=10 A、L_A =L	噪声2	3.75	8.19	7.17	2.84
	噪声1	1.66	6.06	5.19	2.49
噪声1、i_ref=10 A	L_A=0.25L	7.17	6.15	5.28	2.54
	L_A =L	1.69	6.03	5.18	2.47
	L_A=2L	2.53	5.89	5.24	2.46

计及采样噪声补偿的并网逆变器三矢量无模型预测电流控制方法

Three-Vector Model-Free Predictive Current Control Method for Grid-Connected Inverters with Sampling Noise Compensation

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