电网技术Issue(11)：3047-3053,7.DOI:10.13335/j.1000-3673.pst.2014.11.016
基于多回直流功率转移的受端电网节假日期间电压控制
Voltage Control for Receiving End Power Grid Based on Power Transfer in Multi Infeed HVDC Transmission System During Holidays
摘要
Abstract
Due to significant decrease of power load during holidays, the light load leads to the excess of capacitive reactive power and it causes the voltage rise evidently. For AC power grid located at the receiving end of multi infeed HVDC transmission system, restricted by absolute minimum number of the switched on filter banks in the HVDC converter station, under low DC power operating mode the multi HVDC converter stations, which are densely arranged in a limited area, inject a great amount capacitive reactive power simultaneously intoAC power grid located at the receiving end of multi infeed HVDC transmission system, therefore AC grid voltage significantly rises and it is hard to be controlled by conventional voltage regulation measures. A voltage control strategy, in which the DC power transfer among multi HVDC infeeds is considered, is proposed, without changing the total HVDC transmission plan, the interchanged reactive power amount between HVDC transmission system and AC power grid is changed by optimally allocating the power among multi HVDC infeeds, and further the AC grid voltage can be effectively decreased. Both actual case of East China power grid and simulation results show that the active power transferring among multi HVDC infeeds can improve the reactive power flow distribution in the AC power grid at the receiving end of multi infeed HVDC transmission system effectively and the AC grid voltage can be controlled reasonably.关键词
节假日/多回直流功率转移/多直流馈入系统/无功交换/电压控制Key words
holidays/DC power transfer among multi HVDC infeeds/multi infeed HVDC transmission system/reactive power interchange/voltage control分类
信息技术与安全科学引用本文复制引用
缪源诚,程浩忠,庄侃沁..基于多回直流功率转移的受端电网节假日期间电压控制[J].电网技术,2014,(11):3047-3053,7.基金项目
国家自然科学基金项目(51337005)。Project Supported by National Natural Science Foundation of China (51337005) （51337005）
