计及电压调节效应的电力系统机组组合

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摘要以应对不确定性为背景,以源(发电与负荷间机功率)平衡的实现为线索,提出一种新的电力系统机组组合模型。该模型充分计及电压调节效应,并考虑备用响应机制,统筹考虑源平衡及其电压支撑,以挖掘电力系统消纳不确定性的协同能力。针对该模型,给出了基于Benders分解思想的求解思路,即将该模型分解为主问题和子问题,主问题为计及直流潮流网络约束的机组组合,子问题为各场景下交流潮流电压支撑校验,通过子问题反馈的Benders割修正主问题的寻优域。算例分析表明了所提方法的有效性。

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	孙东磊
	韩学山
	杨金洪

关键词 ：电力系统, 机组组合, 协同调度, 电压调节效应, 随机不确定性, Benders分解

Abstract：In order to deal with the injection uncertainties,a novel unit commitment (UC) model is proposed by treating the realization of source power balance,i.e.mechanical power of the supply and demand side,as the clue.The voltage regulation effect and the unit reserve response mechanism are well considered in the model.Additionally,the source power balance and its voltage support are effectively integrated to exploit the potential synergistic capability of the power system to accommodate the injection uncertainties.Based on Benders decomposition algorithm,the model is decomposed into a master problem and some sub-problems.The master problem is the unit commitment problem with direct current (DC) power flow constraints,and the sub-problemsare the alternating current (AC) power flow voltage support decisions for each scenario.The feasible domain of the master problem is restrained by the Benders cuts developed by all the sub-problems.Finally,the validity and effectiveness of the model and the algorithm are verified by case studies.

Key words： Power system unit commitment synergistic dispatch voltage regulation effect random uncertainty Benders decomposition

收稿日期: 2015-09-30 出版日期: 2016-03-16

PACS:

TM71

基金资助:国家重点基础研究发展(973)计划(2013CB228205)和国家自然科学基金(51177091,51477091)资助项目。

通讯作者: 孙东磊,男,1988年生,博士研究生,研究方向为电力系统源网协同理论研究与工程应用技术开发。E-mail:sdusdlei@sina.com E-mail: xshan@sdu.edu.cn

作者简介: 韩学山男,1959年生,博士,教授,博士生导师,研究方向为电力系统优化调度、EMS、电力市场。

引用本文:

孙东磊，韩学山，杨金洪. 计及电压调节效应的电力系统机组组合[J]. 电工技术学报, 2016, 31(5): 107-117. Sun Donglei,Han Xueshan,Yang Jinhong. Power System Unit Commitment Considering Voltage Regulation Effect. Transactions of China Electrotechnical Society, 2016, 31(5): 107-117.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I5/107

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