月刊
ISSN 1000-7229
CN 11-2583/TM
电力建设 ›› 2022, Vol. 43 ›› Issue (10): 147-157.doi: 10.12204/j.issn.1000-7229.2022.10.014
收稿日期:
2022-03-31
出版日期:
2022-10-01
发布日期:
2022-09-29
通讯作者:
樊瑞
E-mail:fanrui1321607@163.com
作者简介:
张敏(1988),女,硕士,高级工程师,主要研究方向为新能源并网、电能质量控制技术;基金资助:
ZHANG Min, ZHI Huiqiang, ZHANG Shifeng, FAN Rui(), LI Ran, WANG Jinhao
Received:
2022-03-31
Online:
2022-10-01
Published:
2022-09-29
Contact:
FAN Rui
E-mail:fanrui1321607@163.com
摘要:
针对配电网中存在的电压越限、谐波畸变、三相不平衡等问题,从综合改善多电能质量问题的角度出发,研究了一种配电网分布式光伏优化调度模型及其求解方法。首先,分析了分布式光伏并网逆变器进行无功功率、谐波电流及不平衡功率补偿的控制方案;在此基础上,以可调度分布式光伏的三相功率及谐波电流输出为控制变量,基于配电网三相基波及谐波潮流方程,建立了最小化网络损耗、不平衡电压以及谐波电压的最优潮流模型;然后,提出了一种潮流计算与优化计算交替迭代的两阶段优化求解算法,对非凸非线性的最优潮流模型进行变量削减,并将其转换为凸二次约束二次规划模型从而实现高效求解;最后,通过一个162节点三相配电网进行算例分析,结果表明,根据最优潮流模型结果对分布式光伏进行调度后,配电网谐波畸变、三相不平衡以及电压越限问题得到了有效改善,且两阶段优化求解算法的计算效率也满足配电网调度时间要求,验证了所提分布式光伏优化调度方法在改善配电网电能质量方面的有效性。
中图分类号:
张敏, 祗会强, 张世锋, 樊瑞, 李冉, 王金浩. 考虑配电网电能质量改善的分布式光伏优化调度方法[J]. 电力建设, 2022, 43(10): 147-157.
ZHANG Min, ZHI Huiqiang, ZHANG Shifeng, FAN Rui, LI Ran, WANG Jinhao. Optimal Scheduling Method for Distributed Photovoltaic Generation in Distribution Network Considering Power Quality Improvement[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(10): 147-157.
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