RESEARCHONSUPPRESSION STRATEGY OF LOW FREQUENCY SUBHARMONICS OF GRID-CONNECTED INVERTER BASED ON PIR

Li Yudong; Huang Xin; Xia Zihao; Li Peifeng

doi:10.19912/j.0254-0096.tynxb.2021-0690

PDF(3453 KB)

Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (12) : 32-40. DOI: 10.19912/j.0254-0096.tynxb.2021-0690

RESEARCHONSUPPRESSION STRATEGY OF LOW FREQUENCY SUBHARMONICS OF GRID-CONNECTED INVERTER BASED ON PIR

Li Yudong, Huang Xin, Xia Zihao, Li Peifeng

Author information +

History +

Abstract

In view of the high content of low-frequency subharmonics of grid-connected current caused by grid voltage distortion,A control strategy based on proportional integral-quasi-resonance（PIR） combined with current harmonic detection loop is proposed to suppress current harmonics. First, analyze the principle of the grid-connected inverter and establish a mathematical model of the current inner loop. Based on the principle of internal model, the full feedforward of the grid voltage is introduced to eliminate the influence of the grid voltage on the grid-side current. Secondly, analyze the principle of current harmonic detection and suppression. The current specific sub-harmonic detection loop is used to extract the harmonic components of the inverter side current, and the closed-loop control is used to suppress the current harmonics. The parameters of alignment the resonant controller are set by using Bode diagram. Finally, a Matlab/Simulink simulation model is established and a dSPACE-DS1104 semi-physical simulation platform is built. The simulation and experimental results test the effectiveness and feasibility of the proposed control strategy.

Key words

harmonic distortion / grid-connected inverter / harmonic suppression / PIR controller / coordinates transformation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Li Yudong, Huang Xin, Xia Zihao, Li Peifeng. RESEARCHONSUPPRESSION STRATEGY OF LOW FREQUENCY SUBHARMONICS OF GRID-CONNECTED INVERTER BASED ON PIR[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 32-40 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0690

References

[1] 郭小强, 邬伟扬, 漆汉宏. 电网电压畸变不平衡情况下三相光伏并网逆变器控制策略[J]. 中国电机工程学报,2013, 33(3): 22-28.
GUO X Q, WU W Y, QI H H.Control strategy of three-phase photovoltaic grid-connected inverter under unbalanced grid voltage distortion[J]. Proceedings of the CSEE, 2013, 33(3): 22-28.
[2] 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, 35(16): 4153-4166.
XU J M, XIE S J, ZHANG B F.Summary of research on current control of LCL filtering grid-connected inverter in distributed generation system[J]. Proceedings of the CSEE, 2015, 35(16): 4153-4166.
[3] 李亚宁, 高晓红. 不平衡电网电压下T型三电平光伏并网逆变器的有限集模型预测控制[J]. 太阳能学报, 2021, 42(1): 7-13.
LI Y N, GAO X H.Finite set model predictive control of T-type three-level photovoltaic grid-connected inverter under unbalanced grid voltage[J]. Acta energiae solaris sinica, 2021, 42(1): 7-13.
[4] IEEE. STD 929~2000 IEEE recommended practice for utility interface of photovoltaic(PV)systems[S].
[5] 许津铭, 季林, 葛小伟, 等. 计及逆变器侧电流反馈影响的LCL滤波器参数优化设计[J]. 中国电机工程学报,2016, 36(17): 4656-4665.
XU J M, JI L, GE X W, et al.Optimal design of LCL filter parameters considering the influence of inverter side current feedback[J]. Proceedings of the CSEE, 2016,36(17): 4656-4665.
[6] 郭超, 杨洪耕. 考虑弱电网下逆变器稳定性的LCL滤波器参数优化方法[J]. 电网技术, 2018, 42(3): 949-956.
GUO C, YANG H G.Optimization method of LCL filter parameters considering inverter stability in weak grid[J]. Grid technology, 2018, 42(3): 949-956.
[7] YANG S T, QIN L, FANG Z P, et al.A robust control scheme for grid-connected voltage-source inverters[J]. IEEE transactions on industrial electronics, 2011, 58(1): 202-212.
[8] COURTNEY J, NADER S, AI-PING H.Synthesis, stability analysis,and experimental implementation of a multirate repetitive learning controller[C]//Proceedings of the 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Atlanta, USA: 1999: 653-658.
[9] PICHAN M, RASTEGAR H, MONFARED M.Deadbeat control of the stand-alone four-leg inverter considering the effect of the neutral line inductor[J]. IEEE transactions on industrial electronics, 2017, 64(4): 2592-2601.
[10] JIANG W D, DING X X, NI Y Y, et al.An improved deadbeat control for a three-phase threeline active power filter with current tracking errors compensation[J]. IEEE transactions on power electronics, 2018, 33(3): 2061-2072.
[11] ZMOOD D N, HOLMES D G.Stationary frame current regulation of PWM inverters with zero steady-state error[J]. IEEE transactions on power electronics, 2003, 18(3): 814-822.
[12] 刘斌, 伍家驹, 邹涛, 等. 基于比例谐振的PFC控制器及其单次谐波抑制[J]. 电工技术学报, 2011, 26(7): 230-236.
LIU B, WU J J, ZOU T, et al.PFC controller based on proportional resonance and its single harmonic suppression[J]. Transactions of China Electrotechnical Society, 2011, 26(7): 230-236.
[13] SUN B H.High voltage regenerative converter and the control of its PWM rectifier[C]//International Conference on E-Product E-Service and E-Entertainment, He’nan, China, 2010: 1-4.
[14] 张馨予, 张钢, 钱江林, 等. 具有低次谐波抑制能力的PIR控制器设计[J]. 电工技术学报, 2016, 31(S2): 19-27.
ZHANG X Y, ZHANG G, QIAN J L, et al.Design of PIR controller with low-order harmonic suppression capability[J]. Transactions of China Electrotechnical Society, 2016,31(S2): 19-27.
[15] 支琴, 吴映阳, 金之俭, 等. 基于比例积分谐振调节的光伏并网逆变器电流控制方法[J]. 上海交通大学学报,2018, 52(12): 1642-1648.
ZHI Q, WU Y Y, JIN Z J, et al.Current control method of photovoltaic grid-connected inverter based on proportional integral resonance adjustment[J]. Journal of Shanghai Jiaotong University, 2018, 52(12): 1642-1648.