Collaborative optimization strategy for flexible distribution areas based on comprehensive control devices

doi:10.11930/j.issn.1004-9649.202506042

Abstract

Abstract:

To address the problems such as increasing line losses, voltage limit violations, and three-phase unbalances caused by the integration of high-penetration distributed photovoltaic (PV) into distribution areas, this paper proposes a collaborative optimization strategy based on comprehensive control devices. By establishing a multi-area distribution network optimization model that considers the operational costs of the control devices, distribution network losses, three-phase voltage unbalance degree, and voltage deviation penalties, the strategy employs symmetric semi-definite programming (SDP) combined with convex relaxation techniques to resolve non-convex and nonlinear problems, achieving coordinated optimization of comprehensive control devices and distribution areas. Finally, simulation results verify that the proposed strategy can ensure efficient PV accommodation and optimal economic performance of the comprehensive control devices, while significantly reducing distribution network losses and improving voltage deviation and three-phase unbalance degree.

Key words: distributed photovoltaic, power quality, comprehensive control device, flexible interconnection

WANG Shuzheng, DONG Weitong, WU Zhi, SUN Yuzhu. Collaborative optimization strategy for flexible distribution areas based on comprehensive control devices[J]. Electric Power, 2026, 59(6): 179-191.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202506042

https://www.electricpower.com.cn/EN/Y2026/V59/I6/179

Figures/Tables 15

References 35

1	郑博妍, 袁至, 李骥. 基于神经盲反卷积时频域去噪的电能质量扰动联合识别方法[J]. 电力系统保护与控制, 2025, 53 (21): 50- 61.
	ZHENG Boyan, YUAN Zhi, LI Ji. Joint identification method for power quality disturbances based on neural blind deconvolution time-frequency domain denoising[J]. Power System Protection and Control, 2025, 53 (21): 50- 61.
2	侯小娥, 王宁, 寿绍安, 等. 基于时域融合变换器的配电网电能质量预测模型[J]. 电力科学与技术学报, 2025, 40 (6): 156- 163.
	HOU Xiao'e, WANG Ning, SHOU Shaoan, et al. Prediction model for power quality of distribution networks based on temporal fusion transformer[J]. Journal of Electric Power Science and Technology, 2025, 40 (6): 156- 163.
3	张智, 徐永海, 张世聪, 等. 直流配电网电能质量指标研究综述[J]. 电力系统保护与控制, 2025, 53 (3): 172- 187.
	ZHANG Zhi, XU Yonghai, ZHANG Shicong, et al. Review of power quality indices of a DC distribution network[J]. Power System Protection and Control, 2025, 53 (3): 172- 187.
4	邱桂华, 区伟潮, 聂家荣. 基于C&CG算法的含高比例分布式光伏配电网双层优化调度策略[J]. 太阳能学报, 2025, 46 (09): 555- 563.
	QIU Guihua, OU Weichao, NIE Jiarong. Two-layer optimization scheduling strategy for distributed photovoltaic distribution networks with high proportion based on C&CG algorithm[J]. Acta Energiae Solaris Sinica, 2025, 46 (09): 555- 563.
5	王朝亮, 肖涛, 李少杰, 等. 农村住宅建筑光储直柔系统性能研究[J]. 中国电力, 2024, 57 (3): 160- 169.
	WANG Zhaoliang, XIAO Tao, LI Shaojie, et al. Performance investigation of PEDF system applied in rural areas[J]. Electric Power, 2024, 57 (3): 160- 169.
6	MA Y G, FENG H H, JIA B R, et al. Generation characteristics and power quality control of a free piston linear generator considering system uncertainty[J]. Energy, 2025, 324, 135861.
7	李凤然, 何静, 尹忠东, 等. 双高有源台区电能质量综合治理装置相关研究[J]. 电力电子技术, 2024, 58 (10): 79- 83.
	LI Fengran, HE Jing, YIN Zhongdong, et al. Research on the comprehensive treatment device of power quality in double-high active station area[J]. Power Electronics, 2024, 58 (10): 79- 83.
8	汪清, 张华赢, 李艳. 三相三线制UPQC对电能质量问题的综合治理[J]. 信息技术, 2019 (3): 83- 86, 90.
	WANG Qing, ZHANG Huaying, LI Yan. Comprehensive management of power quality by three-phase three-wire UPQC[J]. Information Technology, 2019 (3): 83- 86, 90.
9	孟庆东, 程丽艳, 王永波, 等. 统一电能质量综合治理装置的研制[J]. 电器工业, 2024 (7): 45- 49.
10	SRILAKSHMI K, KRISHNA JYOTHI K, KALYANI G, et al. Design of UPQC with solar PV and battery storage systems for power quality improvement[J]. Cybernetics and Systems, 2025, 56 (5): 599- 628.
11	AMRANI Z, BELADEL A, KOUZOU A, et al. Four-wire three-level NPC shunt active power filter using model predictive control based on the grid-tied PV system for power quality enhancement[J]. Energies, 2024, 17 (15): 3822.
12	姬强. 基于光伏及储能并网的电能质量治理技术研究[J]. 价值工程, 2024, 43 (33): 1- 3.
	JI Qiang. Research on power quality management technology based on photovoltaic and energy storage grid connection[J]. Value Engineering, 2024, 43 (33): 1- 3.
13	肖白, 赵雪纯, 高宁远, 等. 挖掘多功能并网逆变器潜力的电能质量综合治理策略[J]. 电力自动化设备, 2025, 45 (6): 133- 140.
	XIAO Bai, ZHAO Xuechun, GAO Ningyuan, et al. Comprehensive governance strategy for power quality based on multi-functional grid-connected inverter[J]. Electric Power Automation Equipment, 2025, 45 (6): 133- 140.
14	袁性忠, 王辉, 贾宏刚, 等. 基于储能型APF的微电网电能质量综合治理[J]. 高压电器, 2022, 58 (8): 238- 244, 251.
	YUAN Xingzhong, WANG Hui, JIA Honggang, et al. Comprehensive power quality control for microgrid based on APF with energy storage[J]. High Voltage Apparatus, 2022, 58 (8): 238- 244, 251.
15	董智, 郝元钊, 赵阳, 等. 基于超容与并联MMC的中压配网电能综合治理[J]. 电力电子技术, 2023, 57 (4): 104- 107.
	DONG Zhi, HAO Yuanzhao, ZHAO Yang, et al. Power quality management of medium voltage distribution network based on super-capacitor and parallel MMC[J]. Power Electronics, 2023, 57 (4): 104- 107.
16	REDDY P Y, SAIKIA L C. Optimized intelligent power quality control strategy for hybrid alternating current-direct current microgrid with electric vehicle charging[J]. Computers and Electrical Engineering, 2025, 124, 110397.
17	NISHAD D K, TIWARI A N, KHALID S, et al. AI-based hybrid power quality control system for electrical railway using single phase PV-UPQC with Lyapunov optimization[J]. Scientific Reports, 2025, 15, 2641.
18	谢旭峰, 陈上上, 潘攀, 等. 电力配网自动化系统配变终端电能质量综合治理功能设计探究[J]. 现代工业经济和信息化, 2024, 14 (7): 110- 113.
	XIE Xufeng, CHEN Shangshang, PAN Pan, et al. Functional design of power quality comprehensive governance of distribution transformer terminals in power distribution network automation system[J]. Modern Industrial Economy and Informationization, 2024, 14 (7): 110- 113.
19	马保, 王晓鹏. 低压配电网电能质量综合治理系统的开发技术分析[J]. 科技创新导报, 2021, 18 (30): 61- 63.
	MA Bao, WANG Xiaopeng. Development and technical analysis of integrated power quality control system for low-voltage distribution network[J]. Science and Technology Innovation Herald, 2021, 18 (30): 61- 63.
20	SAHOO B, SAMANTARAY S R, ALHAIDER M M. Precision power quality control in grid-integrated microgrid via matrix pencil technique[J]. Scientific Reports, 2025, 15, 7023.
21	SAMALA N, BETHI C. Harnessing synergy: a holistic review of hybrid renewable energy systems and unified power quality conditioner integration[J]. Journal of Electrical Systems and Information Technology, 2025, 12 (1): 4.
22	ARSÉNIO COSTA A J, MORAIS H. Power quality control using superconducting magnetic energy storage in power systems with high penetration of renewables: a review of systems and applications[J]. Energies, 2024, 17 (23): 6028.
23	邓凡良. 大庆油田配电网节能与电能质量综合治理的应用研究[J]. 石油石化节能, 2022 (4): 34- 36, I0006, I0007.
	DENG Fanliang. Application research on energy saving and power quality comprehensive treatment of distribution network in Daqing Oilfield[J]. Energy Conservation in Petroleum & PetroChemical Industry, 2022 (4): 34- 36, I0006, I0007.
24	邱逸君. 移动型储能设备在电能质量综合治理中的应用[J]. 农村电工, 2023, 31 (10): 29- 30.
25	HARISH B N, SURENDRA U. Enhanced power quality control of a photo voltaic power plant integrated with multiple electric vehicle[J]. Sādhanā, 2024, 49 (4): 269.
26	董亚平. 农网台区电能质量综合治理几点思考[J]. 通讯世界, 2019, 26 (8): 247- 248.
27	AMRR S M, JAMIL ASGHAR M S. Fine inductive VAR control with high power quality using thyristor controlled reactors and discontinuous phase control switching in power systems[J]. e-Prime - advances in electrical engineering, electronics and energy, 2024, 10, 100767.
28	郑凯元, 王松, 高阳, 等. 同步波形数据及其在电力系统应用综述[J]. 电力信息与通信技术, 2025, 23 (2): 59- 70.
	ZHENG Kaiyuan, WANG Song, GAO Yang, et al. A review of synchronized waveform data and its application in power system[J]. Electric Power Information and Communication Technology, 2025, 23 (2): 59- 70.
29	冯轩, 孔祥平, 杜晓舟, 等. “交改直”系统交流滤波器投切组合优化策略[J]. 中国电力, 2025, 58 (9): 88- 96.
	FENG Xuan, KONG Xiangping, DU Xiaozhou, et al. AC filter switching combination optimization strategy for "AC-to-DC" system[J]. Electric Power, 2025, 58 (9): 88- 96.
30	姜洪浪, 赵婷, 王晓东, 等. 新型电力系统中直流分量影响下电能计量准确性的研究[J]. 电力信息与通信技术, 2025, 23 (2): 71- 76.
	JIANG Hongliang, ZHAO Ting, WANG Xiaodong, et al. Research on the accuracy of electricity metering under the influence of DC component in a new type of power system[J]. Electric Power Information and Communication Technology, 2025, 23 (2): 71- 76.
31	代子阔, 刘尚坤, 李冰心, 等. 基于混合馈入型自适应补偿的电网谐波功率放大器超宽频控制[J]. 电力科学与技术学报, 2024, 39 (4): 245- 254.
	DAI Zikuo, LIU Shangkun, LI Bingxin, et al. Ultra-wideb and control of harmonic power amplifier based on hybrid feed-in adaptive compensation[J]. Journal of Electric Power Science and Technology, 2024, 39 (4): 245- 254.
32	周柯, 金庆忍, 莫枝阅, 等. 虚拟同步机并网运行下电网谐波抑制和故障穿越策略[J]. 电力系统保护与控制, 2024, 52 (9): 166- 173.
	ZHOU Ke, JIN Qingren, MO Zhiyue, et al. Grid harmonic suppression and fault ride-through strategies for a virtual synchronous generator in grid-connected operation[J]. Power System Protection and Control, 2024, 52 (9): 166- 173.
33	李岳华, 王帅, 马卓然, 等. 基于混合电力电子变压器的配电网潮流优化调控方法[J]. 中国电力, 2025, 58 (10): 171- 179.
	LI Yuehua, WANG Shuai, MA Zhuoran, et al. Power flow optimization and control method for distribution networks based on hybrid power electronics transformers[J]. Electric Power, 2025, 58 (10): 171- 179.
34	汪泽州, 毛琳明, 潘克勤, 等. 计及分布式光伏出力不确定性的低压配电网仿射潮流计算方法[J]. 中国电力, 2025, 58 (10): 188- 194.
	WANG Zezhou, MAO Linming, PAN Keqin, et al. Affine power flow calculation method for low-voltage distribution systems considering the uncertainty of distributed photovoltaic output[J]. Electric Power, 2025, 58 (10): 188- 194.
35	刘军会, 龚健, 佟炳绅, 等. 基于分布式储能与光伏的虚拟电厂与配电网协同优化方法[J]. 中国电力, 2025, 58 (6): 1- 9.
	LIU Junhui, GONG Jian, TONG Bingshen, et al. Coordinated optimization method for virtual power plants and distribution networks considering distributed energy storage and photovoltaics[J]. Electric Power, 2025, 58 (6): 1- 9.

时段		光伏上网电价	购电电价
峰时	14:00—22:00	0.42	0.78
平时	13:00—14:00 22:00—23:00	0.42	0.43
谷时	11:00—13:00 23:00—次日06:00	0.42	0.15

时段		光伏上网电价	购电电价
峰时	14:00—22:00	0.42	0.78
平时	13:00—14:00 22:00—23:00	0.42	0.43
谷时	11:00—13:00 23:00—次日06:00	0.42	0.15

项目	数值
电抗器单位投资成本/(元·kvar^–1)	80
变换器单位投资成本/(元·(kV·A)^–1)	800
储能电池单位投资成本/(元·(kW·h)^–1)	1100
直流联络线单位投资成本/(元·kW^–1)	400
分布式光伏单位投资成本/(元·kW^–1)	2800
直流联络线损耗系数/%	3
储能电池损耗系数/%	1.5
变换器损耗系数/%	2
装置运行维护费用系数/%	1

项目	数值
电抗器单位投资成本/(元·kvar^–1)	80
变换器单位投资成本/(元·(kV·A)^–1)	800
储能电池单位投资成本/(元·(kW·h)^–1)	1100
直流联络线单位投资成本/(元·kW^–1)	400
分布式光伏单位投资成本/(元·kW^–1)	2800
直流联络线损耗系数/%	3
储能电池损耗系数/%	1.5
变换器损耗系数/%	2
装置运行维护费用系数/%	1

方案	网损/kW	网损降幅/%	电压偏差降幅/%	电压不平衡系数降幅/%
A	611.8
B	317.1	48.17	44.08	89.53