| 引用本文: | 王守相,程耀祥,赵倩宇,董逸超.考虑光储协调的配电网多阶段就地-分布式电压控制策略[J].电力自动化设备,2024,44(1):1-9. |
| WANG Shouxiang,CHENG Yaoxiang,ZAHO Qianyu,DONG Yichao.Multi-stage local-distributed voltage control strategy of distribution network considering photovoltaic-energy storage coordination[J].Electric Power Automation Equipment,2024,44(1):1-9. |
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| 摘要: |
| 针对高渗透率光伏并网点附近线路的电压越限问题，基于对含分布式电源配电网的功率调压原理的分析，提出了考虑光储协调的多阶段电压控制方法。采用切比雪夫多项式滤波方法改进基于一致性原理迭代的分布式控制方式，有效加快了分布式控制的收敛速度；提出了多阶段就地-分布式电压控制策略，包括光伏逆变器就地无功补偿的阶段Ⅰ调压、全网光伏逆变器分布式无功调节的阶段Ⅱ调压、全网储能一致性分布式有功调节的阶段Ⅲ调压。以改进的某实际55节点中压配电系统为算例进行仿真，验证了所提多阶段就地-分布式电压控制策略的有效性和优越性。 |
| 关键词: 光储系统 电压控制 就地控制 多项式滤波 一致性算法 分布式控制 配电网 |
| DOI：10.16081/j.epae.202303037 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(U2166202,52077149)；国家电网有限公司总部科技项目(5400-202199280A-0-0-00) |
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| Multi-stage local-distributed voltage control strategy of distribution network considering photovoltaic-energy storage coordination |
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WANG Shouxiang1,2, CHENG Yaoxiang1,2, ZAHO Qianyu1,2, DONG Yichao3
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1.Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China;2.Tianjin Key Laboratory of Power System Simulation and Control, Tianjin 300072, China;3.State Grid Tianjin Electric Power Company, Tianjin 300010, China
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| Abstract: |
| In order to solve the voltage violation problem of the lines near the high permeability photovoltaic grid-connected point, a multi-stage voltage control method considering photovoltaic-energy storage coordination is proposed based on the power regulation principle analysis of distribution network with distributed generations. The Chebyshev polynomial filtering method is used to improve the consistency principle iteration-based distributed control, which effectively accelerates the convergence speed. The multi-stage local-distributed voltage control strategy is proposed, including the stage Ⅰ voltage regulation with local reactive power compensation of photovoltaic inverters, the stage Ⅱ voltage regulation with distributed reactive power regulation of photovoltaic inverters in the whole grid, and the stage Ⅲ voltage regulation with consistent distributed active power regulation of energy storage in the whole grid. A modified actual 55-bus medium voltage distribution system is taken as an example for simulation to verify the effectiveness and superiority of the proposed multi-stage local-distributed voltage control strategy. |
| Key words: photovoltaic-energy storage system voltage control local control polynomial filtering consistency algorithm distributed control distribution network |
