梁海峰, 金建澎, 叶亚中. 考虑多重不确定性的交直流混合微网多目标优化运行[J]. 华北电力大学学报(自然科学版), 2023, 50(2): 10-21.
引用本文: 梁海峰, 金建澎, 叶亚中. 考虑多重不确定性的交直流混合微网多目标优化运行[J]. 华北电力大学学报(自然科学版), 2023, 50(2): 10-21.
LIANG Haifeng, JIN Jianpeng, YE Yazhong. Multi-objective Optimal Operation of Hybrid AC/DC Microgrid Considering Multiple Uncertainty[J]. Journal of North China Electric Power University, 2023, 50(2): 10-21.
Citation: LIANG Haifeng, JIN Jianpeng, YE Yazhong. Multi-objective Optimal Operation of Hybrid AC/DC Microgrid Considering Multiple Uncertainty[J]. Journal of North China Electric Power University, 2023, 50(2): 10-21.

考虑多重不确定性的交直流混合微网多目标优化运行

Multi-objective Optimal Operation of Hybrid AC/DC Microgrid Considering Multiple Uncertainty

  • 摘要: 交直流混合微网拓扑结构复杂,分布式清洁能源出力随机性强且用电需求灵活多变,对微网的经济可靠运行以及清洁能源的消纳构成了挑战。针对这一问题,提出一种考虑多重不确定性的交直流混合微网多目标优化运行方法。首先基于多场景技术表征风光荷以及电价的不确定性,并考虑需求侧响应更新负荷预测水平。随后以运行成本最低,污染物排放最少,清洁能源消纳率最高为目标建立交直流混合微网多目标优化模型。针对常规NSGA-II算法局部搜索能力和收敛性等问题,将天牛须算子引入到NSGA-II中得到BAS-NSGA-II算法,并通过测试函数验证了该算法的准确性。最后通过算例对优化方法进行验证,结果表明,所提方法在保证经济性和环保性的同时能够有效提升清洁能源的消纳,且对不确定因素有着较好的适应性。

     

    Abstract: Complex micro-grid topology, strong randomness of distributed clean energy output and flexible power demand have brought challenges to the economic and reliable operation of micro-grids, and the consumption of clean energy. Concerning this issue, a multi-objective optimization operation method of AC/DC hybrid microgrid considering multiple uncertainties was proposed. First, the uncertainty of wind power, photovoltaic power, AC/DC loads and electricity prices were characterized based on multi-scenario technology, and the load forecast level was updated in consideration of demand side response. Then, AC/DC hybrid micro-grid optimization model was established with the objective of the lowest operation cost, the least pollutant emission and the highest clean energy consumption rate. Aiming at the issue of local search ability and convergence of conventional NSGA-II algorithm, the beetle antennae operator was introduced into NSGA-II to obtain the BAS-NSGA-II algorithm, the accuracy of BAS-NSGA-II algorithm was verified by the test function. Finally, a simulation example was used to verify the method and the result shows that this method can effectively improve the consumption of clean energy while ensuring the economic and environmental protection, and it has a strong adaptability to uncertain factors.

     

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