| 引用本文: | 王育飞,陈强,郑云平,薛花,李明,米阳.基于动态无功电压灵敏度的有源配电网移动式储能优化调度[J].电力自动化设备,2023,43(2): |
| WANG Yufei,CHEN Qiang,ZHENG Yunping,XUE Hua,LI Ming,MI Yang.Optimal scheduling of mobile energy storage in active distribution network based on dynamic reactive power and voltage sensitivity[J].Electric Power Automation Equipment,2023,43(2): |
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| 摘要: |
| 随着城市负荷尖峰以及分布式电源渗透率的持续攀升，有源配电网存在负荷峰谷差进一步增大以及电压越限的风险。移动式电池储能系统(MBESS)具备时间-空间灵活性和四象限输出能力，考虑其有功出力参与削峰填谷、无功出力参与电压调节，提出了一种基于电压灵敏度分析的有源配电网MBESS的优化调度方法。首先，针对MBESS出力与接入位置之间的耦合影响，推导定有功功率条件下满足仿射关系的无功电压修正灵敏度；其次，考虑不同网络结构下不同节点电压的调整需求，提出一种动态无功电压修正灵敏度的计算方法，旨在确定MBESS的时序最优接入方案；然后，构建充分考虑运行经济性与可靠性的MBESS双层优化调度模型；最后，以IEEE 33节点配电系统为例，采用增强烟花算法对所提模型进行求解，结果表明所提方法能够在保证MBESS具备较好经济效益的同时，有效减小负荷峰谷差以及提升配电系统的整体电压水平。 |
| 关键词: 有源配电网 移动式电池储能系统 削峰填谷 电压调节 动态无功电压灵敏度 优化调度 |
| DOI：10.16081/j.epae.202205040 |
| 分类号:TM73 |
| 基金项目:国家自然科学基金资助项目(61873159)；上海市科技创新行动计划项目(20DZ2205500) |
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| Optimal scheduling of mobile energy storage in active distribution network based on dynamic reactive power and voltage sensitivity |
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WANG Yufei1, CHEN Qiang1, ZHENG Yunping2, XUE Hua1, LI Ming2, MI Yang1
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1.College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2.Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830013, China
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| Abstract: |
| With the increase of urban load peak and the penetration rate of distributed generations, there are risks of further increase of peak-valley load difference and voltage out-of-limit in active distribution network. mobile battery energy storage system(MBESS) has time-space flexibility and four-quadrant output capability. Considering MBESS active power output participating in peak load shifting and reactive power output participating in voltage regulation, an optimal scheduling method of MBESS in active distribution network based on voltage sensitivity analysis is proposed. Firstly, in view of the coupling effect between the MBESS output and its access position, the reactive power and voltage correction sensitivity satisfying the affine relation under the condition of constant active power is derived. Secondly, considering the voltage adjustment requirements of different buses under different network structures, a calculation method of dynamic reactive power and voltage correction sensitivity is proposed to determine the optimal access scheme of MBESS. Then, a two-layer optimal scheduling model of MBESS is constructed, which fully considers the operation economy and reliability. Finally, taking IEEE 33-bus distribution system as an example, the proposed model is solved by using the enhanced fireworks algorithm. The results show that the proposed method can effectively reduce the peak-valley load difference and improve the overall voltage level of the distribution system while ensuring good economic benefits of MBESS. |
| Key words: active distribution network mobile battery energy storage system peak load shifting voltage regulation dynamic reactive power and voltage sensitivity optimal scheduling |
