光储微电网功率优化方法及协调控制策略研究*

doi:10.11985/2022.01.004

电气工程学报 ›› 2022, Vol. 17 ›› Issue (1): 22-30.doi: 10.11985/2022.01.004

所属专题：特邀专栏：电力电子化配电网关键设备和运行控制

• 特邀专栏: 电力电子化配电网关键设备和运行控制 • 上一篇下一篇

扫码分享

光储微电网功率优化方法及协调控制策略研究^*

刘艳东¹(), 胡祎文²(), 陈楠³, 王菁月², 邵鑫铭², 裴忠晨², 刘闯²()

1.陕西吉电能源有限公司西安 710000
2.东北电力大学电气工程学院吉林 132000
3.长春吉电能源科技有限公司长春 130000

收稿日期:2021-12-13 修回日期:2022-02-01 出版日期:2022-03-25 发布日期:2022-05-06
通讯作者: 刘闯 E-mail:2106832068@qq.com;hyw13596213858@163.com;victorliuchuang@163.com
作者简介:刘艳东,男,1971年生,工程师。主要研究方向为微电网运行与控制。E-mail： 2106832068@qq.com;
胡祎文,女,1999年生,硕士研究生。主要研究方向为能源高效利用中高效高可靠电力电子功率变换技术。E-mail： hyw13596213858@163.com
基金资助:
*长春吉电能源科技有限公司资助项目(2021-31-JLD-KY-C)

Study on Power Optimization Method and Coordinated Control Strategy of Optical Storage Microgrid

LIU Yandong¹(), HU Yiwen²(), CHEN Nan³, WANG Jingyue², SHAO Xinming², PEI Zhongchen², LIU Chuang²()

1. Shaanxi Jidian Energy Co., Ltd., Xi’an 710000
2. School of Electrical Engineering, Northeast Electrical Power University, Jilin 132000
3. Changchun Jidian Energy Technology Co., Ltd., Changchun 130000

Received:2021-12-13 Revised:2022-02-01 Online:2022-03-25 Published:2022-05-06
Contact: LIU Chuang E-mail:2106832068@qq.com;hyw13596213858@163.com;victorliuchuang@163.com

摘要/Abstract

摘要：

光储微电网作为一种友好发电模式具有平抑网侧功率波动、光伏发电产能趋稳以及可调度性等优点,是实现“源-网-荷-储”系统稳定运行和可再生能源充分消纳的优选方案。围绕光储微电网功率优化与灵活运行提出了组件级配置方案和协调控制策略,进一步释放光伏发电潜力以及促进储能单元高效运行。首先,针对光伏组件失配导致的“木桶效应”及储能变换器效率低的问题,分别配置组件级光伏功率优化器和储能部分功率变换器,实现太阳能和电能最大化利用。其次,讨论光伏阵列和储能单元在并/离网工况下多种模式切换,考虑微电网各单元间功率动态平衡,提出一种光储微电网协调控制策略,实现各单元在不同控制模式之间平滑切换及功率自主分配。最后,利用Matlab/Simulink搭建30 kW光储微电网仿真平台,验证所提协调控制策略的可行性与有效性。

关键词: 光伏组件级功率优化器, 储能部分功率变换器, 功率平衡, 协调控制策略

Abstract:

As a friendly power generation mode, optical storage microgrid has the advantages of stabilizing grid side power fluctuation, stabilizing photovoltaic (PV) power generation capacity and schedulability. It is the preferred scheme to realize the stable operation of ‘source-network-load-storage’ system and the full absorption of new energy. Based on the power optimization and flexible operation of optical storage microgrid, a component level configuration scheme and coordinated control strategy are proposed to further release the potential of PV power generation and promote the efficient operation of energy storage unit. Firstly, aiming at the barrel effect caused by PV module mismatch and low efficiency of energy storage converter, PV module power optimizer and energy storage partial power converter are configured respectively to maximize the utilization of solar energy and electric energy. Secondly, the multi-mode switching of PV array and energy storage unit under on/off grid conditions is discussed. Considering the power dynamic balance among the units of microgrid, a coordinated control strategy of optical storage microgrid is proposed to realize the smooth switching and power automatic distribution of each unit between different control modes. Finally, a 30 kW optical storage microgrid simulation platform is built by using Matlab/Simulink to verify the feasibility and effectiveness of the proposed coordinated control strategy.

Key words: PV module power optimizer, energy storage partial power converter, power balance, coordinated control strategy

中图分类号:

TM561

刘艳东, 胡祎文, 陈楠, 王菁月, 邵鑫铭, 裴忠晨, 刘闯. 光储微电网功率优化方法及协调控制策略研究^*[J]. 电气工程学报, 2022, 17(1): 22-30.

LIU Yandong, HU Yiwen, CHEN Nan, WANG Jingyue, SHAO Xinming, PEI Zhongchen, LIU Chuang. Study on Power Optimization Method and Coordinated Control Strategy of Optical Storage Microgrid[J]. Journal of Electrical Engineering, 2022, 17(1): 22-30.

图/表 19

图1

图2

图3

图4

图5

图6

图7

图8

图9

图10

表1

图11

图12

图13

图14

图15

图16

图17

图18

参考文献 15

[1]	张怀宇, 徐超然, 黄志龙, 等. 考虑光伏发电不确定性的源-网-荷-储协调调度方法[J]. 电器与能效管理技术, 2021(5):86-92.
	ZHANG Huaiyu, XU Chaoran, HUANG Zhilong, et al. Coordinated dispatch method of generation-grid-load-storage considering uncertainty of PV generation[J]. Electrical & Energy Management Technology, 2021(5):86-92.
[2]	侯慧, 徐焘, 肖振锋, 等. 基于重力储能的风光储联合发电系统容量规划与评价[J]. 电力系统保护与控制, 2021, 49(17):74-84.
	HOU Hui, XU Tao, XIAO Zhenfeng, et al. Optimal capacity planning and evaluation of a wind-photovoltaic-storage hybrid power system based on gravity energy storage[J]. Power System Protection and Control, 2021, 49(17):74-84.
[3]	刘畅, 卓建坤, 赵东明, 等. 利用储能系统实现可再生能源微电网灵活安全运行的研究综述[J]. 中国电机工程学报, 2020, 40(1):1-18,369.
	LIU Chang, ZHUO Jiankun, ZHAO Dongming, et al. A review on the utilization of energy storage system for the flexible and safe operation of renewable energy microgrids[J]. Proceedings of the CSEE, 2020, 40(1):1-18,369.
[4]	罗雅雯, 谭恒, 周建军, 等. 局部阴影下MPPT智能优化器与并联优化器对比分析[J]. 西藏科技, 2020(12):21-23.
	LUO Yawen, TAN Heng, ZHOU Jianjun, et al. Comparative analysis of MPPT intelligent optimizer and parallel optimizer under local shadow[J]. Tibet Science and Technology, 2020(12):21-23.
[5]	冯丽娜, 陈阿莲, 杜春水, 等. 光伏阵列组态优化控制策略综述[C]// 2011中国电工技术学会学术年会论文集, 2011:452-458.
	FENG Lina, CHEN Alian, DU Chunshui, et al. The overview of control strategy for optimizing the configuration of photovoltaie array[C]// Proceedings of 2011 Academic Annual Meeting of China Electrotechnical Society, 2011:452-458.
[6]	邱培春, 葛宝明, 毕大强. 基于蓄电池储能的光伏并网发电功率平抑控制研究[J]. 电力系统保护与控制, 2011, 39(3):29-33.
	QIU Peichun, GE Baoming, BI Daqiang. Battery energy storage-based power stabilizing control for grid-connected photovoltaic power generation system[J]. Power System Protection and Control, 2011, 39(3):29-33.
[7]	JØRGENSEN K L, ZHANG Z, ANDERSEN M A E. Next generation of power electronic-converter application for energy-conversion and storage units and systems[J]. Clean Energy, 2019, 3(4):307-315.
[8]	ZIENTARSKI JRR, PINHEIRO JR, MARTINS DA SILVA, et al. Evaluation of power processing in series-connected partial-power converters[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019, 7(1):343-352. doi: 10.1109/JESTPE.2018.2869370
[9]	MIRA M C, ZHANG Z, ANDERSEN M A E. Analysis and comparison of dc/dc topologies in partial power processing configuration for energy storage systems[J]. In 2018 International Power Electronics Conference, IPEC-Niigata-ECCE Asia, Niigata Convention Center, Niigata, Japan, 2018:1351-1357.
[10]	赵忠斌, 张靖, 马蕊, 等. 互联直流微电网多模式协调控制策略[J]. 智慧电力, 2020, 48(4):28-35.
	ZHAO Zhongbin, ZHANG Jing, MA Rui, et al. Multi-mode coordinated control strategy for interconnected DC microgrid[J]. Smart Power, 2020, 48(4):28-35.
[11]	王子鹏, 郑丽君, 吕世轩. 考虑多储能系统功率分配的独立直流微电网协调控制策略[J]. 电力建设, 2021, 42(4):89-96.
	WANG Zipeng, ZHENG Lijun, LÜ Shixuan. Coordinated control for islanded DC microgrid considering power sharing of multiple energy storages[J]. Electric Power Construction, 2021, 42(4):89-96.
[12]	卢锦玲, 张伟, 张祥国, 等. 含混合储能的光伏微电网系统协调控制策略[J]. 电力系统及其自动化学报, 2021, 33(8):102-108.
	LU Jinling, ZHANG Wei, ZHANG Xiangguo, et al. Coordinated control strategy for photovoltaic micro-grid system with hybrid energy-storage[J]. Proceedings of the CSU-EPSA, 2021, 33(8):102-108.
[13]	蔡晓宇, 史旺旺. 串联型集成光伏组件光伏系统的运行电压优化[J]. 可再生能源, 2016, 34(4):494-499.
	CAI Xiaoyu, SHI Wangwang. Operation voltage optimization of series integrated photovoltaic module photovoltaic system[J]. Renewable Energy Resources, 2016, 34(4):494-499.
[14]	齐继志. 串联光伏功率优化器无通讯控制策略与模拟控制研究[D]. 杭州: 浙江大学, 2021.
	QI Jizhi. Research on no-communication control strategy and analog control for series-connected photovoltaic power optimizer[D]. Hangzhou: Zhejiang University, 2021.
[15]	杨惠. 光伏储能双向DC-DC变换器控制策略研究[D]. 西安: 西安理工大学, 2018.
	YANG Hui. Research on control strategy of the bidirectional DC-DC converter for the photovoltaic power generation and energy storage system[D]. Xi’an: Xi’an University of Technology, 2018.

参数	数值
直流母线电压参考值U_{dc_ref}/V	600
低压侧交流母线电压U_G/V	220
光伏组件短路电流I_sc/A	5.96
光伏组件开路电压U_oc/V	64.2
光伏组件最大功率点电流I_m/A	5.58
光伏组件最大功率点电压U_m/V	54.7
储能电池组电压U_ESS/V	500
储能电池组容量/(A·h)	20
储能电池组限值[SOC_L, SOC_H](%)	[20, 80]

光储微电网功率优化方法及协调控制策略研究^*

Study on Power Optimization Method and Coordinated Control Strategy of Optical Storage Microgrid

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 19

参考文献 15

相关文章 3

编辑推荐

Metrics

本文评价

[1]	林歆悠, 郑清香, 吴超宇. 基于GA-ECMS电机转矩优化的混合动力系统协调控制[J]. 机械工程学报, 2020, 56(2): 145-153.
[2]	肖洒, 李德骏, 陈燕虎, 杨灿军, 金波. 模块化CC/CV变换器及其控制策略[J]. 机械工程学报, 2020, 56(14): 196-206.
[3]	韩民晓,王皓界. 直流微电网——未来供用电领域的重要模式[J]. 电气工程学报, 2015, 10(5): 1-9.