基于dSPACE的单相并网逆变器控制策略研究

doi:10.16180/j.cnki.issn1007-7820.2023.03.010

Abstract

Abstract:

In view of the problem of high harmonic content of grid-connected current caused by voltage distortion, a control strategy combining quasi-proportional resonance control and voltage feed-forward is proposed in this study. Considering the infinite gain of the quasi-proportional resonance controller at the resonant frequency, the steady-state error of grid-connected current is reduced, and the voltage feed-forward is introduced to eliminate the influence of voltage on the system, so as to improve the quality of grid-connected current. The structure of single-phase grid-connected inverter is analyzed, the harmonic component of grid-connected current caused by voltage distortion is suppressed by closed-loop control, and the parameters of quasi-proportional resonance controller are set by control variable method, so as to analyze the influence of parameters of quasi-proportional resonance controller on system performance. Finally, the MATLAB/Simulink simulation model and the dSPACE-DS1104 hardware-in-the-loop simulation platform are established to verify the effectiveness of the proposed strategy under different strategies.

Key words: grid-connected current, voltage feed-forward, closed-loop control, harmonic component, quasi-proportional resonance, zero steady-state error, MATLAB/Simulink, simulation analysis

CLC Number:

TM464

XIA Zihao,LI Yudong. Research on Control Strategy of Single-Phase Grid-Connected Inverter Based on dSPACE[J].Electronic Science and Technology, 2023, 36(3): 62-68.

Figures/Tables 11

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Table 1.

Figure 9.

Figure 10.

References 18

[1]	Blaabjerg F, Chen Z, Kjaer S B. Power electronics as efficient interface in dispersed power generation syst-ems[J]. IEEE Transactions on Power Electronics, 2004, 19(5):1184-1194. doi: 10.1109/TPEL.2004.833453
[2]	Teodorescu R, Liserre M, Rodriguez P. Grid converters for photovoltaic and wind power systems[M]. Hoboken: Wiley-IEEE Press, 2011.
[3]	许津铭, 谢少军, 唐婷. 弱电网下LCL滤波并网逆变器自适应电流控制[J]. 中国电机工程学报, 2014, 34(24):4031-4039.
	Xu Jinming, Xie Shaojun, Tang Ting. An adaptive curr-ent control for gridconnected LCL-filtered inverters in weak grid case[J]. Proceedings of the CSEE, 2014, 34(24):4031-4039.
[4]	王学华, 阮新波, 刘尚伟. 抑制电网背景谐波影响的并网逆变器控制策略[J]. 中国电机工程学报, 2011, 31(6):7-14.
	Wang Xuehua, Ruan Xinbo, Liu Shangwei. Control strategy for grid-connected inverter to suppress current distortion effected by background harmonics in grid voltage[J]. Proceedings of the CSEE, 2011, 31(6):7-14.
[5]	杨明, 杨杰, 赵铁英, 等. 弱电网下抑制谐振频率偏移的并网逆变器谐波谐振控制策略[J]. 电机与控制学报, 2021, 25(8):87-98.
	Yang Ming, Yang Jie, Zhao Tieying, et al. Harmonic res-onance control strategy for grid-connected inverter tosuppress resonance frequency shift in weak grid[J]. Electric Machines and Control, 2021, 25(8):87-98.
[6]	许津铭, 谢少军, 张斌锋. 分布式发电系统中LCL滤波并网逆变器电流控制研究综述[J]. 中国电机工程学报, 2015, 25(16):4153-4166.
	Xu Jinming, Xie Shaojun, Zhang Binfeng. Overview of current control techniques for grid-connected inverters with LCL filters in distributed power generation systems[J]. Proceedings of the CSEE, 2015, 35(16):4153-4166.
[7]	Dannehl J, Wessels C, Fuchs F W. Limitations of voltage oriented PI current control of grid-connected PWM rectifiers with LCL filters[J]. IEEE Transactions on Industrial Electronics, 2009, 56(2):380-388. doi: 10.1109/TIE.2008.2008774
[8]	马亚辉, 李欣然, 李小菊, 等. 并网光伏发电系统的动态模型研究[J]. 太阳能学报, 2013, 34(11):1860-1867.
	Ma Yahui, Li Xinran, Li Xiaoju, et al. Research on the dynamic model of grid connected PV generation system[J]. Acta Energiae Solaris Sinica, 2013, 34(11):1853-1859.
[9]	张国月, 钟皖生, 吴越, 等. 多内模技术在光伏并网发电系统电流波形质量改善中的应用[J]. 中国电机工程学报, 2014, 34(1):22-31.
	Zhang Guoyue, Zhong Wansheng, Wu Yue, et al. Multi-internal model technique applied in the improving of current wave quality in PV grid-connected power systems[J]. Proceedings of the CSEE, 2014, 34(1):22-31.
[10]	宋国杰, 李国进, 杨浩, 等. 基于d-q坐标系下LCL型光伏并网逆变器的PI+状态反馈控制[J]. 太阳能学报, 2020, 41(11):135-142.
	Song Guojie, Li Guojin, Yang Hao, et al. PI+ state feed-back controller of single-phase LCL PV grid-connected inverter based on d-q coordinate system[J]. Acta Energiae Solaris Sinica, 2020, 41(11):135-142.
[11]	代满意, 陈华, 郑芬. 改进微电网并网逆变器滞环电流控制策略[J]. 电力电子技术, 2018, 52(4):24-26.
	Dai Manyi, Chen Hua, Zheng Fen. Improved hysteresis current control scheme for microgrid grid-connected inverter[J]. Power Electronics, 2018, 52(4):24-26.
[12]	赵越. 基于电流滞环跟踪PWM逆变器双闭环控制研究[J]. 电子科技, 2016, 29(12):51-54.
	Zhao Yue. Research on double closed loop control of PWM inverter based on current hysteresis tracking[J]. Electronic Science and Technology, 2016, 29(12):51-54.
[13]	杨浩, 宋国杰, 滕馥遥, 等. 基于双序前馈解耦的光伏逆变器并网控制策略[J]. 太阳能学报, 2021, 42(1):77-84.
	Yang Hao, Song Guojie, Teng Fuyao, et al. Grid-connect-ed control strategy of photovoltaic inverter based on double sequence feed-forward decoupling[J]. Acta Energiae Solaris Sinica, 2021, 42(1):77-84.
[14]	杨兴武, 陈磊, 牛梦娇. LCL滤波并网逆变器多速率重复控制策略[J]. 高电压技术, 2018, 44(10):3231-3240.
	Yang Xingwu, Chen Lei, Niu Mengjiao. Multirate repetitive control strategy for grid-connected inverter with LCL filter[J]. High Voltage Engineering, 2018, 44(10):3231-3240.
[15]	谭翠兰, 陈启宏, 张立炎, 等. 三相四桥臂并网逆变器的无差拍重复控制[J]. 电力系统自动化, 2018, 42(18):142-148.
	Tan Cuilan, Chen Qihong, Zhang Liyan, et al. Deadbeat and repetitive control for grid-connected three-phase four-leg inverters[J]. Automation of Electric Power Systems, 2018, 42(18):142-148.
[16]	金爱娟, 曹文彬, 游珊妮, 等. 单相光伏系统的逆变器控制策略[J]. 电子科技, 2017, 30(1):19-22.
	Jin Aijuan, Cao Wenbin, You Shanni, et al. Study of inverters of single-phase photovoltaic system control strategy[J]. Electronic Science and Technology, 2017, 30(1):19-22.
[17]	Groutage F, Volfson L, Schneider A. S-plane to Z-plane mapping using a simultaneous equation algorithm based on the bilinear transformation[J]. IEEE Transactions on Automatic Control, 1987, 32(7):635-637. doi: 10.1109/TAC.1987.1104664
[18]	Krishna H. Computational aspects of the bilinear transformation based algorithm for S-plane to Z-plane mapping[J]. IEEE Transactions on Automatic Control, 1988, 33(11):1086-1088. doi: 10.1109/9.14427

参数	数值	参数	数值
直流电压/V	70	采样频率/Hz	15 000
比例系数	0.5	谐振系数	60
直流侧电容/μF	400	截止频率/rad·s^-1	5
开关频率/Hz	5 000	逆变侧电感/mH	0.8
滤波电容/μF	600	网侧电感/mH	1.2

Research on Control Strategy of Single-Phase Grid-Connected Inverter Based on dSPACE

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 11

References 18

Related Articles 15

Metrics

Comments

Recommended 10

[1]	SUN Sinan,HAO Zhenghang. Research on Battery Grid Connection Based on Voltage and Current Double Loop Control [J]. Electronic Science and Technology, 2023, 36(2): 13-21.
[2]	WANG Yumei,ZHANG Zihan,WANG Hao. Large-Disturbance Stability Analysis of DC Microgrid Based on Mixed Potential Function [J]. Electronic Science and Technology, 2022, 35(1): 66-72.
[3]	NIU Shuaichen,WANG Fuzhong,HAN Yaofei,HE Guofeng,NIU Yeke. Control Strategy of Modular Multilevel Converter Under Unbalanced Grid Voltage [J]. Electronic Science and Technology, 2022, 35(1): 80-86.
[4]	LI Yudong,LIAN Haishan,HU Xiaodan. AC/AC Frequency Conversion Power Supply Based on Three-Phase Input [J]. Electronic Science and Technology, 2021, 34(9): 47-53.
[5]	WANG Jialiang,JIANG Kejian,ZHU Fangfu. Magnetic Field Analysis of Magnetic Bearing Pole Fault under Fault-Tolerant Control [J]. Electronic Science and Technology, 2021, 34(11): 81-87.
[6]	HAN Qiang,LI Changhao,CHENG Jianpeng,ZHANG Xiliang,LI Boquan,YIN Jingtian. Research on Double Closed Loop Control of Laser Attitude and Angle Sliding Mode of Crane Orbit Detection Robot [J]. Electronic Science and Technology, 2020, 33(7): 17-21.
[7]	FAN Lele,WANG Xudong,FENG Haichao,XU Xiaozhuo. ModelingAnd Simulation of Primary Winding Piecewise PMSLM System Based on Vector Control [J]. Electronic Science and Technology, 2020, 33(12): 1-6.
[8]	JI Shengyang,WANG Xudong,XU Xiaozhuo,SUN Weixiang,SHI Kaining. Research on Direct Torque Control of Permanent Magnet Synchronous Motor Based on Sliding Mode Control [J]. Electronic Science and Technology, 2019, 32(7): 1-5.
[9]	FAN Zhenhua, LIN Xiankun. Dynamic Modeling and Simulation Analysis of Thermal Deformation of Linear Motors [J]. , 2016, 29(8): 64-.
[10]	ZHU Qifan，DUAN Jun，YANG Fanghong. Thermal Control System Design of Electronic Equipment [J]. , 2016, 29(8): 28-.
[11]	XUE Song1, XU Xiaodong1, JIANG De1, CHEN Jin2. Optical Current Sensor for Measuring Grounding Fault Signal in Power Grid [J]. , 2016, 29(7): 98-.
[12]	CHEN Shanzhang,ZHANG Zhendong. Finite Element Analysis of EM Field of Vehicle Drive Motor Based on Ansoft [J]. , 2016, 29(3): 168-.
[13]	XU Dayuan,WANG Yingjian,CHEN Guanjun,ZHANG Wei. Research on Dynamic Modeling and Position Control of the Quadcopter [J]. , 2015, 28(1): 69-.
[14]	HE Qi,MAO Panfeng. Permanent Magnet BLDCM Control System Based on PIC18F4431 Microcontroller Design [J]. , 2014, 27(5): 132-.
[15]	WEN Xiaoni,WANG Lu. Research on System Dynamics Model of Shaanxi Electronic Information Industry [J]. , 2013, 26(8): 175-.