Research on Control Strategy and Consumption Capacity Evaluation of Distributed Generation Access to Distribution Network

doi:10.16628/j.cnki.2095-8188.2022.04.014

Abstract

Abstract:

Due to its own advantages,distributed generation (DG) is mainly connected to medium and low voltage distribution network.Large scale access has many impacts on distribution network.DG grid connection structure and control technology are greatly different from the traditional power generation methods.By analyzing the impact of DG access to distribution network, starting from the control of distribution network after grid connection,the surrounding load is coordinated and the five control strategies for distribution network planning and voltage level are summarized.From the capacity of the selected access location,its acceptance capacity is analyze by evaluating the consumption level after access,and the improvement measures are summarized.Finally,taking a regional distribution network as an example,a model is established for calculation and analysis,which not only solves the consumption problem after access,but also improves the overall energy utilization rate and improves the stability and flexibility of the power grid operation.

Key words: distributed generation, distribution network, new energy consumption, control strategy

CLC Number:

TM732

WANG Yunhui, ZHENG Qiangren, GUO Miao, XIAO Huanchun, HE Houdao, CHEN Wanxi. Research on Control Strategy and Consumption Capacity Evaluation of Distributed Generation Access to Distribution Network[J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 83-87.

Figures/Tables 4

References 12

[1]	李建林, 孟高军, 葛乐, 等. 全球能源互联网中的储能技术及应用[J]. 电器与能效管理技术, 2020(1):1-8.
[2]	汪谦, 雷水平, 项川, 等. 分布式电源对配电网继电保护影响的研究[J]. 电器与能效管理技术, 2017(15):58-62.
[3]	朱永强, 王福源. 分布式电源接入与电网电压偏差[J]. 电器与能效管理技术, 2017(22):70-74.
[4]	张少谦, 朱永强. 分布式电源对电网电压波动的影响分析[J]. 电器与能效管理技术, 2017(23):76-80.
[5]	张艳霞, 代风仙. 含分布式电源配电网的馈线保护新方案[J]. 电力系统自动化, 200, 33(12):71-74.
[6]	冯希科, 邰能灵, 宋凯, 等. DC容量对配电网电流保护的影响及对策研究[J]. 电力系统保护与控制, 2010, 38(22):156-159.
[7]	周锦华. 配电网接纳分布式电源能力分析[J]. 低碳世界, 2018(4):66-67.
[8]	刘新元, 宋述勇, 郑惠萍, 等. 区域电网新能源消纳多变量综合评估模型研究及应用[J]. 电器与能效管理技术, 2018(1):39-43.
[9]	李宽宏. 促进分布式电源消纳的主动配电网暂稳态联合优化[J]. 电器与能效管理技术, 2019(3):18-24.
[10]	王峰, 王春宁. 分布式电源接入系统方案典型设计研究及应用[J]. 电气应用, 2015(21):116-119.
[11]	徐少华, 李建林. 提高配电网分布式电源接纳能力的储能系统优化配置技术研究[J]. 电器与能效管理技术, 2017(13):34-38.
[12]	张泉, 朱永强. 与分布式电源接入有关的电网三相不平衡问题[J]. 电器与能效管理技术, 2017(24):61-64.

序号	电源名称	电压等级/kV	装机容量/kW	年发电量/ MWh
1	光伏001	66	20 000	28 932.1
2	光伏002	66	20 000	26 850.1
3	光伏003	66	20 000	25 546.6

序号	线路名称	电压等级/kV	上级电源	最大负荷/MW	可接入类型	可消纳容量/MVA
1	东甲线	10	66 kV东一变	2.124	光伏	1.41
2	池甲线	10	66 kV新一变	1.148	光伏	1.10
3	池乙线	10	66 kV新一变	1.230	光伏	1.07
4	一龙线	10	66 kV东二变	2.543	光伏	1.57
5	小风线	10	66 kV东二变	1.480	光伏	1.21

[1]	LI Xinyuan, GAO Peng, YU Haoran, SHEN Zhendong, WANG Baichao, LIN Yan. Design of Multifunctional Electronic Load Based on Active Power Filter [J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 41-46.
[2]	WANG Qingze, ZHANG Shouqiang, AI Maomin, WANG Jia, ZHANG Shuo. Evaluation and Analysis of Uninterrupted Operation Capacity in Distribution Network Based on AHP-Delphi Method [J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 70-75.
[3]	LI Jiaxu, XIA Hua, BAO Xiangyu. Fault Simulation of DC Distribution Network with Distributed Power Access [J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 76-82.
[4]	WANG Yunhui, ZHENG Qiangren, GUO Miao, XIAO Huanchun, SI Cong, CHEN Wanxi. Reliability Improvement of Distribution Network with Distributed Generation Sources and Diversified Loads [J]. LOW VOLTAGE APPARATUS, 2022, 0(2): 63-67.
[5]	LIAO Jianbo, CHEN Bo, CHEN Yuanwei, YU Wei, CHEN Jiancong, LIN Dazeng, ZHANG Lu, NAN Dongliang. Voltage Violation Risk Assessment and Pre-Control in Active Distribution Network Considering Uncertainty [J]. LOW VOLTAGE APPARATUS, 2022, 0(2): 74-82.
[6]	FU Meiping, MAO Jianrong, SONG Rui, WANG Guanghui, FU Guobin. Voltage and Reactive Power Control Strategy of Energy Storage Power Stations in Large New Energy Enriched Areas [J]. LOW VOLTAGE APPARATUS, 2022, 0(2): 88-94.
[7]	SUN Guangtao, LI Shukun, JI Jianghui, WANG Xiaoli. Design and Research on Semi Controller of DC Circuit Breaker [J]. LOW VOLTAGE APPARATUS, 2022, 0(1): 35-39.
[8]	FENG Yi, JIN Bin, ZHOU Xiang. Multi-Source Data Processing and Fusion Model of Low Voltage Distribution Network Based on Hermite Network [J]. LOW VOLTAGE APPARATUS, 2021, 0(9): 100-106.
[9]	JIANG Xiaofeng, CHANG Luyu, CHEN Jue, ZHANG Meng. Comprehensive Evaluation of Electrochemical Energy Storage Power Station for New Energy Consumption [J]. LOW VOLTAGE APPARATUS, 2021, 0(9): 40-44.
[10]	ZHANG Ying, XU Xin. Research on Fault Location of Distribution Network Based on Ant Colony Annealing Algorithm [J]. LOW VOLTAGE APPARATUS, 2021, 0(9): 85-90.
[11]	LI Guodong, WANG Zheng, HAO Shuai, ZHAO Fengzhan, ZHANG Qicheng, LIU Chuanghua, MAN Yuyan. Evaluation of the Impact of Distributed Generation Access on Distribution Network Operation Index [J]. LOW VOLTAGE APPARATUS, 2021, 0(6): 79-85.
[12]	XU Haidong, HUANG Ming. Research on Power Supply Capability Margin of Distribution Network Considering DG and Diversified Loads [J]. LOW VOLTAGE APPARATUS, 2021, 0(6): 99-105.
[13]	LI Hongyan, LIU Miaomiao, JIA Tian, QI Xiaoxiang, NIU Gaoyuan, ZHANG Zhen. Research on Control Strategy of Electric Vehicle Orderly Charging Based on Monte Carlo Algorithm [J]. LOW VOLTAGE APPARATUS, 2021, 0(5): 59-64.
[14]	CAO Xinhui, FU Lin, GAO Lingyu, KAI Saijiang, LI Zhongzheng, YUAN Tiejiang. Energy Storage Control Strategy to Eliminate Risk of New Energy Grid-Connected Operation [J]. LOW VOLTAGE APPARATUS, 2021, 0(5): 75-80.
[15]	SONG Wei, TAO Yong, LIANG Huamin. Research on Typical Connection and Operation Mode of AC-DC Hybrid Distribution Network [J]. LOW VOLTAGE APPARATUS, 2021, 0(4): 16-23.