水风储微电网电源容量的优化配置
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TM727

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国家自然科学基金资助项目(51567002)


Optimal sizing of microgrids with wind-hydropower-energy storage
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    摘要:

    由于配电系统线路功率和节点电压的约束,在微电网规划中需要弃风弃水来减少设备容量。文中提出一种高效能的友好并网型水风储微电网优化配置方法。通过量化风电资源和水电资源的最大可发电量,结合所提的微电网运行控制策略及运行约束,建立以微电网投资及运营成本、年弃风弃水电量和电源年发电量为目标函数的多目标优化模型;通过基于精英策略的非支配性排序遗传算法(NSGA-II)求出模型的最优解集,并采用逼近理想解排序方法(TOPSIS)选择满意的配置方案。通过韶关地区某实际配电系统进行多场景仿真验证,结果表明该模型提高了可再生能源利用率,保证了配电系统的电能质量,验证了该配置方法的实用性和经济性。

    Abstract:

    Due to the power and voltage constraints of the distribution system,the resource of wind power and hydropower is abandoned in microgrid planning to reduce equipment capacity.Thus,in order to make full use of renewable energy,an optimal configuration of effective and friendly grid-connected microgrid with wind-hydropower and storage is proposed.Firstly,the resource of wind power and hydropower is quantized,and the operation and control strategy of microgrid is determined.Then considering operational constraints of microgrid in distribution system,a multi-objective optimization model is established,with considering the costs of investment and operation,abandoned amount of wind power and hydropower,and annual power generation as objective functions.The model is solved by the non-dominated sorting genetic algorithm (NSGA-II).Finally,the technique for order preference by similarity to an ideal solution(TOPSIS)is adopted to choose the best optimal solution from Pareto solution set based on some indices proposed in this paper.The proposed algorithm is applied to a distribution network in Shaoguan county with multi-scenes,and the result shows the proposed model could improve the utilization of renewable energy and ensure the power quality of the distribution system,and verifies the effectiveness of the model and solution strategy.

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陈永进,吴杰康,翁兴航,张文杰,罗伟明.水风储微电网电源容量的优化配置[J].电力工程技术,2019,38(6):137-146

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历史
  • 收稿日期:2019-05-25
  • 最后修改日期:2019-07-18
  • 录用日期:2019-06-04
  • 在线发布日期: 2019-11-28
  • 出版日期: 2019-11-28