电力系统保护与控制2018，Vol.46Issue(5)：114-121,8.DOI:10.7667/PSPC170232
考虑微网充电站影响的输电网风险评估方法
Risk based assessment method for transmission system considering the influence of micro-grid charging station
王龙宇 1刘灿 2王丙东 2蔡蕾3
作者信息
- 1. 国网冀北电力有限公司检修分公司,北京 102488
- 2. 国网冀北电力有限公司廊坊供电公司,河北 廊坊 065000
- 3. 国网天津武清供电有限公司,天津 301700
- 折叠
摘要
Abstract
With the micro-grid charging station connecting into distribution system, it exists power source in radiated distribution network which cannot be equivalent to a passive load point in traditional transmission system risk assessment of distribution network. A risk assessment method for transmission system considering micro-grid charging station is proposed to analyze this effect. First of all, this paper introduces theoretical basis of risk assessment, then emphatically analyzes probability model of micro-grid charging station, including output probabilistic model of distributed generation and charging load probabilistic model of Electric Vehicles (EV). The expected load curtailment influenced by distribution network is applied to replace absolute load curtailment. Finally, the effectiveness of the proposed method is verified by using a testing system, the influence on risk index of transmission network by the proportions of distributed generation capacity and reverse power transmission network in micro-grid charging station is analyzed. The analysis results show that micro-grid charging station connected into distribution network can effectively reduce risk level of transmission system.关键词
微网/风险评估/输电网/电动汽车/充电站Key words
micro-grid/risk assessment/transmission system/electric vehicles/charging station引用本文复制引用
王龙宇,刘灿,王丙东,蔡蕾..考虑微网充电站影响的输电网风险评估方法[J].电力系统保护与控制,2018,46(5):114-121,8.
