基于电压趋危系数的配电网多时间尺度自适应无功电压控制

doi:10.11930/j.issn.1004-9649.202009131

中国电力 ›› 2021, Vol. 54 ›› Issue (11): 69-75.DOI: 10.11930/j.issn.1004-9649.202009131

• 基于电力电子装备的配电网运行控制与形态演变专栏 • 上一篇下一篇

基于电压趋危系数的配电网多时间尺度自适应无功电压控制

金子冉¹, 吴红斌¹, 周亦尧¹, 徐斌², 丁津津², 魏薇³

1. 新能源利用与节能安徽省重点实验室(合肥工业大学), 安徽合肥 230009;
2. 国网安徽省电力有限公司电力科学研究院, 安徽合肥 230601;
3. 国网安徽省电力有限公司, 安徽合肥 230061

收稿日期:2020-10-09 修回日期:2021-09-18 出版日期:2021-11-05 发布日期:2021-11-16
作者简介:金子冉(1996-),男,硕士研究生,从事配电网的仿真分析研究,E-mail:550347989@qq.com;吴红斌(1972-),男,通信作者,教授,博士生导师,从事分布式发电技术、配电网仿真分析研究,E-mail:hfwuhongbin@163.com;周亦尧(1996-),男,硕士研究生,从事配电网电压控制,分布式电源预测研究,E-mail:740293041@qq.com
基金资助:
国家自然科学基金（区域创新发展联合基金）资助项目（多类型分布式电源接入配电网规划与运行控制理论研究，U19A20106）

Multi-time Scale Adaptive Reactive Voltage Control for Distribution Networks Based on Voltage Tendency Coefficient

JIN Ziran¹, WU Hongbin¹, ZHOU Yiyao¹, XU Bin², DING Jinjin², WEI Wei³

1. Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving (Hefei University of Technology), Hefei 230009, China;
2. State Grid Anhui Electric Power Research Institute, Hefei 230601, China;
3. State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China

Received:2020-10-09 Revised:2021-09-18 Online:2021-11-05 Published:2021-11-16
Supported by:
This work is supported by the Regional Innovation and Development Joint Fund of National Natural Science Foundation of China (Research on Planning and Operation Control Theory of Distribution Network with Multi-type Distributed Generations, No.U19A20106).

摘要/Abstract

摘要： 高比例分布式光伏接入配电网后，源荷不匹配可能会导致电压越限。在电压偏差量和电压波动量基础上，定义了评估配电网不同运行场景的电压趋危系数(voltage tendency coefficient, VTC)，提出了基于电压趋危系数的多时间尺度自适应无功电压控制方法。在长时间尺度下，构建了以经济性和安全性满意度最优为目标的日前优化调度策略；在短时间尺度下，通过电压趋危系数动态修正传统下垂控制的固定斜率，以释放光伏逆变器无功裕度。同时，在短时间尺度优化控制中加入对长时间尺度的反馈校正环节。通过算例系统进行仿真，验证了提出的无功电压控制方法的有效性。

关键词: 配电网, 电压趋危系数, 多时间尺度, 无功电压控制, 电压越限

Abstract: With a high proportion of distributed photovoltaic connected to the distribution network, the mismatch between source and load may lead to voltage overlimit. Based on the deviation and fluctuation of the voltage, the voltage tendency coefficient (VTC) for evaluating different operation scenarios of the distribution network is defined and an multi-time scale adaptive reactive voltage control method is proposed in this paper. For the long time scale, a day-ahead optimal dispatch strategy aiming at the optimization of economy and security satisfaction is constructed based on VTC. And for the short time scale, the fixed slope of the traditional droop control is dynamically modified by VTC for releasing the reactive power margin of the photovoltaic inverter. In addition, a feedback correction for the long time scale is added to the short time scale optimization control. With the simulation of the example system, the effectiveness of the proposed reactive voltage control method is verified.

Key words: distribution network, voltage tendency coefficient, multiple time scales, reactive voltage control, voltage overlimit

金子冉, 吴红斌, 周亦尧, 徐斌, 丁津津, 魏薇. 基于电压趋危系数的配电网多时间尺度自适应无功电压控制[J]. 中国电力, 2021, 54(11): 69-75.

JIN Ziran, WU Hongbin, ZHOU Yiyao, XU Bin, DING Jinjin, WEI Wei. Multi-time Scale Adaptive Reactive Voltage Control for Distribution Networks Based on Voltage Tendency Coefficient[J]. Electric Power, 2021, 54(11): 69-75.

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基于电压趋危系数的配电网多时间尺度自适应无功电压控制

Multi-time Scale Adaptive Reactive Voltage Control for Distribution Networks Based on Voltage Tendency Coefficient

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基于电压趋危系数的配电网多时间尺度自适应无功电压控制

Multi-time Scale Adaptive Reactive Voltage Control for Distribution Networks Based on Voltage Tendency Coefficient

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