一种快速跟踪功率参考值的光伏并网低电压穿越控制策略

黎泽宇; 苏小玲

doi:10.16513/j.2096-2185.DE.2308507

PDF(1568 KB)

分布式能源 ›› 2023, Vol. 8 ›› Issue (5) : 54-60. DOI: 10.16513/j.2096-2185.DE.2308507

学术研究

一种快速跟踪功率参考值的光伏并网低电压穿越控制策略

黎泽宇 ¹ ,
苏小玲 ²

作者信息 +

A Low Voltage Traversal Control Strategy for Grid-Connected PV Based on Fast Tracking of Power Reference Values

Zeyu LI ¹ ,
Xiaoling SU ²

Author information +

文章历史 +

摘要

为了解决传统光伏并网低电压穿越控制策略动态响应慢导致直流母线电压失稳的问题，提出了一种基于图形法和模型预测控制的快速跟踪功率参考值的低电压穿越策略。该策略首先根据网侧电压跌落程度，算出交直流侧的参考功率，然后直接控制光伏阵列和逆变器输出相应参考功率，达到交直流侧的快速平衡。仿真结果表明，当功率参考值发生改变时，传统控制策略直流侧响应时间为200 ms，交流侧有功响应时间为16.5 ms，无功响应时间为17 ms，而本文所提策略响应时间为5.000、0.140、0.135 ms，验证了所提控制策略的快速性。

Abstract

In order to solve the problem of DC bus voltage instability caused by slow dynamic response of traditional grid-connected PV low voltage crossing control strategy, a fast tracking power reference value low voltage crossing strategy based on graph method and model predictive control is proposed. The strategy firstly calculates the reference power of the AC and DC side according to the voltage drop degree of the grid side, and then controls the photovoltaic array and the inverter to output the corresponding reference power to achieve the fast balance of the AC and DC side. The simulation results show that when the power reference value changes, the response time of the traditional control strategy is 200 ms on the DC side, 16.5 ms on the AC side, and 17 ms on the reactive side, while the response time of the strategy proposed in this paper is 5.000, 0.140, 0.135 ms, which verifies the speediness of the proposed control strategy.

导出引用

黎泽宇, 苏小玲. 一种快速跟踪功率参考值的光伏并网低电压穿越控制策略[J]. 分布式能源. 2023, 8(5): 54-60 https://doi.org/10.16513/j.2096-2185.DE.2308507

Zeyu LI, Xiaoling SU. A Low Voltage Traversal Control Strategy for Grid-Connected PV Based on Fast Tracking of Power Reference Values[J]. Distributed Energy Resources. 2023, 8(5): 54-60 https://doi.org/10.16513/j.2096-2185.DE.2308507

中图分类号： TK51

参考文献

列表( 原文顺序 | 文献年度倒序 | 文中引用次数倒序 ) 可视化分析

[1]	赵剑波，王蕾. “十四五”构建以新能源为主体的新型电力系统[J]. 中国能源，2021, 43(5):17-21. ZHAO Jianbo, WANG lei. “Fourteenth Five-Year Plan” to build a new energy as the main body of the new power system[J]. Energy of China, 2021, 43(5):17-21. 本文引用 [1]

[2]	丁明，王伟胜，王秀丽，等. 大规模光伏发电对电力系统影响综述[J]. 中国电机工程学报，2014, 34(1):1-14. DING Ming, WANG Weisheng, WANG Xiuli, et al. A review on the effect of large-scale PV generation on power systems[J]. Proceedings of the CSEE, 2014, 34(1):1-14. 本文引用 [1]

[3]

马聪，高峰，李瑞生，等. 新能源并网发电系统低电压穿越与孤岛同步检测的无功功率扰动算法[J]. 电网技术，2016, 40(5):1406-1414.

Cong

, GAO

Feng

, LI

Ruisheng

, et al. Reactive power perturbation method for simultaneous low voltage ride-through and islanding detection of grid-tied renewable energy generation systems[J]. Power System Technology, 2016, 40(5):1406-1414.

本文引用 [1]

[4]

田雨果，王彤，邢其鹏，等. 计及虚拟惯量控制与低电压穿越的光伏发电系统暂态稳定分析[J]. 电力系统保护与控制，2022, 50(2):52-59.

TIAN

Yuguo

, WANG

Tong

, XING

Qipeng

, et al. Transient stability analysis of a photovoltaic generation system considering virtual inertia control and low voltage ride-through[J]. Power System Protection and Control, 2022, 50(2):52-59.

本文引用 [1]

[5]	HE Y F, WANG M H, XU Z. Coordinative low-voltage-ride-through control for the wind-photovoltaic hybrid generation system[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 8(2):1503-1514. 本文引用 [1]

[6]	DAS P P, CHATTOPADHYAY S. A voltage-independent islanding detection method and low-voltage ride through of a two-stage PV inverter[J]. IEEE Transactions on Industry Applications, 2018, 54(3):2773-2783. 本文引用 [1]

[7]	HASANIEN H M. An adaptive control strategy for low voltage ride through capability enhancement of grid-connected photovoltaic power plants[J]. IEEE Transactions on Power Systems, 2016, 31(4):3230-3237. 本文引用 [1]

[8]	KHAN M A, HAQUE A, KURUKURU V S B. Dynamic voltage support for low-voltage ride-through operation in single-phase grid-connected photovoltaic systems[J]. IEEE Transactions on Power Electronics, 2021, 36(10):12102-12111. 本文引用 [1]

[9]	樊志浩. 光伏并网发电系统低电压穿越控制策略研究[D]. 天津：天津理工大学，2019. FAN Zhihao. Research on low voltage ride through control strategy of photovoltaic grid - connected power generation system[D]. Tianjin: Tianjin University of Technology, 2019. 本文引用 [1]

[10]	徐可寒，张哲，刘慧媛，等. 光伏电源故障特性研究及影响因素分析[J]. 电工技术学报，2020, 35(2):359-371. XU Kehan, ZHANG Zhe, LIU Huiyuan, et al. Study on fault characteristics and its related impact factors of photovoltaic generator[J]. Transactions of China Electrotechnical Society, 2020, 35(2):359-371. 本文引用 [1]

[11]	王诗雯，刘飞，刘沁怡，等. 不对称故障下两级式光伏并网系统低电压穿越控制[J]. 电网技术，2022, 47(1):92-99. WANG Shiwen, LIU Fei, LIU Qingyi, et al. Low-voltage riding-through control strategy for two-staged grid-connected photovoltaic system under asymmetrical faults[J]. Power System Technology, 2022, 47(1):92-99. 本文引用 [1]

[12]	曹善康，马啸，汪光远，等. 网侧故障下系统友好型直流微网协调控制策略[J]. 中国电机工程学报，2021, 41(23):7950-7963. CAO Shankang, MA Xiao, WANG Guangyuan, et al. System-friendly DC microgrid coordination control strategy under AC grid fault[J]. Proceedings of the CSEE, 2021, 41(23):7950-7963. 本文引用 [1]

[13]	李永凯，雷勇，苏诗慧，等. 混合储能提高光伏低电压穿越控制策略的研究[J]. 电测与仪表，2021, 58(5):1-7. LI Yongkai, LEI Yong, SU Shihui, et al. Research on the control strategy of improving PV low voltage ride through by hybrid energy storage device[J]. Electrical Measurement & Instrumentation, 2021, 58(5):1-7. 本文引用 [1]

[14]	禹　红，李明德，曾荷清，等. 电网故障下光伏并网低压故障穿越控制策略的研究[J]. 智慧电力，2021, 49(7):31-35. YU Hong, LI Mingde, ZENG Heqing, et al. Control strategy of photovoltaic grid-connected low-voltage fault ride-through under power grid fault[J]. Smart Power, 2021, 49(7):31-35. 本文引用 [1]

[15]	赵莹莹. 基于模型预测控制的光伏并网发电系统及低电压穿越策略研究[D]. 兰州：兰州理工大学，2022. ZHAO Yingying, Research on grid-connected photovoltaic power generation system and low voltage ride through strategy based on model predictive control[D]. Lanzhou: Lanzhou University of Technology, 2022. 本文引用 [1]

[16]	朱月，沙俊民，赵静. 含不同机组风电场低电压穿越能力仿真研究[J]. 发电技术，2020, 41(3):328-333. ZHU Yue, SHA Junmin, ZHAO Jing. Simulation study on low voltage ride-through capability of wind farms with different units[J]. Power Generation Technology, 2020, 41(3):328-333. 本文引用 [1]

[17]	TANG C Y, CHEN Y T, CHEN Y M. PV power system with multi-mode operation and low-voltage ride-through capability[J]. IEEE Transactions on Industrial Electronics, 2015, 62(12):7524-7533. 本文引用 [1]

[18]	周雪松，刘乾，马幼捷，等. 基于改进自抗扰的光伏并网逆变器直流母线电压控制[J]. 太阳能学报，2022, 43(10):65-72 ZHOU Xuesong, LIU Qian, MA Youjie, et al. DC-link voltage control of photovoltaic grid-connected inverter based on improved active disturbance rejection，[J] Acta Energiae Solaris Sinica, 2022, 43(10):65-72. 本文引用 [2]

[19]	TAFTI H D, MASWOOD A I, POU J, et al. An algorithm for reduction of extracted power from photovoltaic strings in grid-tied photovoltaic power plants during voltage sags[C]//Proceedings of 42nd Annual Conference of the IEEE Industrial Electronics Society(IECON), 2016: 3018-3023. 本文引用 [1]

[20]	SANGWONGWANICH A, YANG Y H, BLAABJE R G F, et al. Delta power control strategy for multistring grid-connected PV inverters[J]. IEEE Transactions on Industry Applications, 2017, 53(4):3862-3870. 本文引用 [1]

[21]	王琦，徐俊杰，李星硕，等. 基于柔性工作点追踪的光伏低电压穿越控制策略[J]. 电力工程技术，2022, 41(3):55-63 WANG Qi, XU Junjie, LI Xingshuo, et al. Photovoltaic low-voltage ride-through control strategy based on flexible power point tracking[J] Electric Power Engineering Technology, 2022, 41(3):55-63. 本文引用 [1]

[22]	王寰雨. 光伏并网系统的低电压穿越控制技术研究[D]. 武汉：华中科技大学，2017 WANG Huanyu. Low-voltage ride-through control strategy for photovoltaic grid-connected systems[D]. Wuhan: Huazhong University of Science and Technology, 2017. 本文引用 [1]

[23]	何芳，丛雨，王立强. 光伏逆变器机电暂态模型功率控制参数辨识及验证[J]. 内蒙古电力技术，2022, 40(3):1-6. HE Fang, CONG Yu, WANG Liqiang. Power control parameters identification and verification of photovoltaic inverter electromechanical transient model[J]. Inner Mongolia Electric Power, 2022, 40(3):1-6. 本文引用 [1]