| 引用本文: | 戴志辉,王靖宇,潘星宇,等.特高压交直流接入后电网断面潮流综合评价方法[J].电力系统保护与控制,2020,48(19):65-72.[点击复制] |
| DAI Zhihui,WANG Jingyu,PAN Xingyu,et al.A comprehensive power flow evaluation method for a transmission sectionwith UHVAC/DC integration[J].Power System Protection and Control,2020,48(19):65-72[点击复制] |
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| 摘要: |
| 为全面评价特高压交直流接入后电网断面的潮流状态，合理规划电网结构，提出一种基于层次分析法与扇形雷达图法的潮流综合评价方法。首先，从电网运行的安全性、经济性与潮流分布三方面选取5个独立性较强的指标参与综合评价，并对线路负载率、母线电压等指标进行了优化。其次，采用扇形雷达图法综合评估潮流指标总体水平与离散程度，可用于优选不同接入方案。最后，利用PSD-BPA进行了仿真验证，结果表明该方法有利于提高潮流评价的准确度和评价结果的合理性。 |
| 关键词: 特高压交直流；潮流综合评价方法；层次分析法 扇形雷达图法；安全性；经济性 |
| DOI：DOI:10.19783/j.cnki.pspc.191341 |
| 投稿时间：2019-10-28修订日期：2020-02-16 |
| 基金项目:国家自然科学基金项目资助(51877084)；河北省自然科学基金项目资助(E2018502063)；国家电网有限公司科技项目资助(SGHEJY00GHJS1900023) |
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| A comprehensive power flow evaluation method for a transmission sectionwith UHVAC/DC integration |
| DAI Zhihui,WANG Jingyu,PAN Xingyu,TENG Zhengwei,QIN Liangdong |
| (1. Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China;
2. State Grid Hebei Electric Power Co., Shijiazhuang 050021, China) |
| Abstract: |
| To thoroughly evaluate power flows of the transmission section with UHVAC/DC integration, and thus appropriately plan the power grid structure, a comprehensive evaluation method of power flow based on the analytic hierarchy process and the fan-shaped radar chart method is proposed. First, five independent indices in terms of system operation safety, economy and power flow distribution are selected during the comprehensive evaluation. The line-load rate, bus voltage and other indices are then optimized. Secondly, the fan-shaped radar chart method is used to assess the overall level and dispersion degree of the evaluation results, which can be employed to select optimal UHVAC/DC integration schemes. Finally, simulation verification is implemented via PSD-BPA. The results indicate that the method is helpful in improving the accuracy of power flow evaluation and the rationality of the evaluation results.
This work is supported by National Natural Science Foundation of China (No. 51877084), Natural Science Foundation of Hebei Province (No. E2018502063), and Science and Technology Project of State Grid Corporation of China (No. SGHEJY00GHJS1900023). |
| Key words: ultra high-voltage AC/DC comprehensive evaluation method of power flow analytic hierarchy process fan-shaped radar chart method safety economy |
