文章摘要
晋宏杨,孙宏斌,牛涛,等.考虑风险约束的高载能负荷-风电协调调度方法[J].电力系统自动化. DOI: 10.7500/AEPS20180901001.
JIN Hongyang,,牛涛, et al.Coordinated Dispatch Method of Energy-extensive Load and Wind Power Considering Risk Constraints[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20180901001.
考虑风险约束的高载能负荷-风电协调调度方法
Coordinated Dispatch Method of Energy-extensive Load and Wind Power Considering Risk Constraints
DOI:10.7500/AEPS20180901001
关键词: 风电不确定性  风险约束  高载能负荷  机组组合  鲁棒优化
KeyWords: wind uncertainty  risk constraints  energy intensive load  unit commitment  robust optimization
上网日期:2019-04-11
基金项目:国家科技支撑计划资助项目(2015BAA01B04);国家自然科学基金创新研究群体科学基金资助项目(51321005);
作者单位E-mail
晋宏杨 清华大学电机工程与应用电子技术系 jinhongyang2236@outlook.com 
孙宏斌 清华大学电机工程与应用电子技术系 shb@tsinghua.edu.cn 
牛涛 清华大学电机工程与应用电子技术系 niutthu@qq.com 
郭庆来 清华大学电机工程与应用电子技术系 guoqinglai@tsinghua.edu.cn 
王彬 清华大学电机工程与应用电子技术系 wb1984@tsinghua.edu.cn 
摘要:
      高载能负荷参与消纳风电时,由于负荷设备动作周期长的特点和风电的不确定性,会导致负荷用电与风电出力不匹配的问题。针对该问题,文中提出一种计及负荷方风险约束的高载能负荷-风电协调调度方法。首先,基于风电可接纳区间的概念和风电场出力概率密度分布,建立电网对风电的接纳能力的模型。接着,根据电网接纳能力外的弃风情况,构建了与高载能负荷用电计划调整量和风电弃风量相关联的风险约束,使负荷方能够在一定程度上规避由于风电不足导致的负荷调整量与风电新增出力不匹配的风险。然后,基于高载能负荷的调整对风电可接纳区间的影响,建立了以风电消纳为目标的鲁棒机组组合模型,保证线路容量约束的满足。最后,在IEEE RTS-79系统中对所提方法进行了验证,并分析了高载能负荷侧的保守程度对协调调度的影响。
Abstract:
      To mitigate the power mismatch between coordinated wind generation and slow-speed load devices, this paper proposed a risk based robust unit commitment approach under the coordination of wind and energy-intensive load. First, the admissible region of wind power (ARWP) is applied to model the ability of power system to integrate wind generation. Then, based on ARWP, the wind curtailment is modeled, and CVaR based constraints are added to limit the risk of wind shortage after the adjustment of energy intensive loads. Next, based on load models and ARWP, a robust unit commitment problem is proposed to maximize wind integration. The IEEE RTS-79 system is modified and applied to test the proposed approach, and the influence of risk constraints on coordination of wind and energy intensive enterprises is investigated.
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