| 引用本文: | 张忠会,胡国宝,李瑞欣.考虑电动汽车接入的分布式电源出力优化[J].电力系统保护与控制,2018,46(6):120-127.[点击复制] |
| ZHANG Zhonghui,HU Guobao,LI Ruixin.Optimization of distributed generation output in electric vehicles integrating into distribution network[J].Power System Protection and Control,2018,46(6):120-127[点击复制] |
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| 摘要: |
| 分布式发电(DG)具有自由灵活的特点，其供电能力受自然环境的影响较大。大规模电动汽车(EV)接入配网导致电能质量严重下降，迫切需要进行及时消纳。这对配网中分布式发电的合理调度提出了更高的要求。建立了考虑电动汽车接入的分布式电源出力多目标优化模型，以电压波动最小和新增网损最小为目标，对分布式电源日出力进行动态调整。结果表明，该优化模型平抑了电压波动，降低了电压越界风险，同时能够改善经济性。算例采用标准节点系统进行仿真，对考虑经济性优化、单目标电压优化、不优化三种模式的效果作了比较分析。 |
| 关键词: 电动汽车 分布式电源 出力优化 电压波动 |
| DOI：10.7667/PSPC170332 |
| 投稿时间：2017-03-16修订日期：2017-05-28 |
| 基金项目: |
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| Optimization of distributed generation output in electric vehicles integrating into distribution network |
| ZHANG Zhonghui,HU Guobao,LI Ruixin |
| (Nanchang University, Nanchang 330031, China) |
| Abstract: |
| The Distributed Generation (DG) is of flexibility. Its capability in supplying power is greatly affected by natural environment. A large scale of Electric Vehicles (EV) accessed to distribution network cause serious decline of power quality, therefore it is urgent to absorb the added load timely, which raises a higher demand on the reasonable generation dispatch for distributed generation. This paper establishes a multi-objective optimization model for the generation output of DG considering the access of EV, which takes the minimum fluctuation of voltage and the minimum added power network loss as the objectives to dynamically adjust DG daily output. The result shows that the model smooths the voltage fluctuation, reduces the risk of voltage violation, and meanwhile improves the economic efficiency. The standard node system is simulated as an example, and the effects of three models of considering economic optimization, single-objective optimization and no optimization are compared and analyzed. |
| Key words: electric vehicles distributed generation output optimization voltage fluctuation |
