基于随机模糊机会约束的主动配电网分布式风电双层规划模型
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马瑞(1971-),男,博士,教授,主要从事电力系统分析与控制、低碳电力和电力大数据等研究;E-mail:marui818@126.com

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TM73;TM614

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国家自然科学基金(51677007)


Distributed wind power bilevel programming model for active distribution network based on stochastic fuzzy chance constraint
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    摘要:

    针对风速兼具随机性和模糊性的多重不确定特征,提出一种主动配电网分布式风电容量配置的随机模糊机会约束双层规划模型。通过随机模糊模拟描述分布式风电出力不确定性,并考虑其时序特征建立风电出力时序性随机模糊模型,结合随机模糊模拟及潮流分析获取节点电压、支路功率及系统倒送功率等系统静态安全指标的随机模糊机会测度,采用兼顾随机性和模糊性的可信度作为评价分布式风电容量配置方案的指标;进而考虑系统功率平衡、静态安全指标机会测度约束及主动管理措施,以年利润随机模糊期望值最大为上层优化目标,以通过主动管理使分布式风电有功削减随机模糊期望值最小为下层优化目标,通过判断上层方案静态安全指标是否满足随机模糊机会约束的置信水平进行上下层规划协同,从而构建一种分布式风电容量配置随机模糊机会约束双层规划新模型; 最后提出结合随机模糊模拟、前推回代潮流计算和遗传算法对模型求解。IEEE14节点算例仿真过程及结果表明模型和算法的有效性和优越性。

    Abstract:

    Aiming at the multiple uncertain features of wind speed with both randomness and ambiguity, a distributed wind power bilevel programming model for active distribution network (ADN) based on stochastic fuzzy chance constraint is proposed. Considering the multiple uncertainty characteristics which contains both randomness and fuzziness of wind speed, firstly, the article describes the uncertainty of distributed wind power output through random fuzzy simulation, established a random fuzzy model of wind power output by considering the time sequence,obtains the chance measure of static security index by random fuzzy simulation and power flow analysis, uses reliability which contains both randomness and fuzziness to evaluate the distributed wind power configuration scheme. The model describes the uncertainty of distributed wind power output through random fuzzy simulation, and considers its timing characteristics to establish a random fuzzy model of wind power output. Random fuzzy simulation and power flow analysis are combined to obtain system static security such as node voltage, branch power and system reverse power of random fuzzy chance measure. The credibility of both randomness and fuzziness is adopted as the index to evaluate the distributed wind power capacity allocation plan. Secondly, the system power balance, static safety index opportunity measurement constraints and active management (AM) measures are considered. The maximization of annual profit random fuzzy expected value is set to be the upperlevel optimization goal. The minimization of random fuzzy expected value of the distributed wind power is set to be the lowerlevel optimization goal and realized by the active management of distributed wind power. Whether the static safety index of the upperlevel scheme meets the confidence level of the random fuzzy chance constraint, the upper and lower levels are planned to collaborate to construct a new bilevel programming model for distributed wind power capacity configuration with random fuzzy chance constraint. Finally, a combination of random fuzzy simulation, forward and backward power flow calculation and genetic algorithm (GA) is proposed to solve the model. The simulation process and results of IEEE14 node example show the effectiveness and superiority of the model and algorithm.

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引用本文

马瑞,罗心仪,肖麟祥.基于随机模糊机会约束的主动配电网分布式风电双层规划模型[J].电力科学与技术学报,2021,36(3):46-55.
Ma Rui, Luo Xinyi, Xiao Linxiang. Distributed wind power bilevel programming model for active distribution network based on stochastic fuzzy chance constraint[J]. Journal of Electric Power Science and Technology,2021,36(3):46-55.

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  • 在线发布日期: 2021-08-26
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