| 引用本文: | 白浩,于力,姜臻,等.考虑售电侧放开后的配电网供电能力计算方法[J].电力系统保护与控制,2020,48(10):99-105.[点击复制] |
| BAI Hao,YU Li,JIANG Zhen,et al.Calculation method of power supply capacity of a distribution network considering the opening of power sale side[J].Power System Protection and Control,2020,48(10):99-105[点击复制] |
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| 摘要: |
| 售电侧放开增加了配电网潮流的不确定性，对配电网的供电能力也产生了一定的影响。首先从物理因素和市场因素两方面，分析了售电侧放开后影响配电网供电能力的因素。其次，根据售电侧放开后电力交易负荷的变化情况，利用最小二乘法模拟负荷增长趋势，建立了考虑售电侧放开后的配电网供电能力模型，并采用改进的重复潮流算法对模型进行求解。最后通过算例，分析了联络线的增加及电力交易量的大小等因素对配电网供电能力造成的影响，验证了所提方法的准确性和有效性。 |
| 关键词: 售电侧 配电网供电能力 重复潮流 最小二乘法 |
| DOI：10.19783/j.cnki.pspc.190820 |
| 投稿时间：2019-07-15修订日期：2019-08-29 |
| 基金项目:国家重点研发计划资助项目(2018YFB0905105);2019南方电网科技项目资助“售电侧开放后配电网供电能力评估方法研究”(ZBKJXM20180068) |
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| Calculation method of power supply capacity of a distribution network considering the opening of power sale side |
| BAI Hao,YU Li,JIANG Zhen,ZHANG Bin,YE Linhao,YU Keke |
| (Southern Power Grid Research Institute Limited Liability Company, Guangzhou 510663, China;China Southern Power Grid Company Limited, Guangzhou 510663, China;Shandong Ohm Power Technology Limited Liability Company, Tai’an 271000, China) |
| Abstract: |
| The release of the power supply side increases the uncertainty of the power flow of a distribution network, and also has a certain impact on the power supply capacity of the network. In this paper, the factors that affect the power supply capacity are analyzed from two aspects:physical factors and market factors. Secondly, according to the change of power transaction load and the load growth trend simulated by least squares method, the power supply capacity model of a distribution network considering the release of the power side is established, and an improved repetitive power flow algorithm is used to solve the model. Finally, the influence of factors such as the increase of tie line and the size of electricity transactions on distribution network power supply capability is analyzed and the accuracy and effectiveness of the proposed method are verified by an example. This work is supported by National Key Research and Development Program of China (No. 2018YFB0905105) and Science and Technology Project of China Southern Power Grid in 2019 “Assessment Method Study of Distribution Network Power Supply Capability after the release of the Power Supply Side” (No. ZBKJXM20180068). |
| Key words: power selling side distribution network power supply capability repeated power flow least squares method |
