中国电力2017，Vol.50Issue(8)：27-31,5.DOI:10.11930/j.issn.1004-9649.2017.08.027.05
特高压直流闭锁后超(超)临界机组大频差控制策略
Primary Frequency Regulation of Large Frequency-Difference in Supercritical/Ultra-Supercritical Units After UHVDC Transmission System Block Fault
费章胜 1卢宏林 1何永君 2归一数3
作者信息
- 1. 淮沪煤电有限公司田集发电厂,安徽淮南232098
- 2. 中国电机工程学会,北京100761
- 3. 上海明华电力技术工程有限公司,上海200090
- 折叠
摘要
Abstract
When the DC blocking fault occurs in the UHVDC transmission system,the instantaneous power loss in the receiving power grid relies on the power plant primary frequency regulation in the region for compensation,and the thermal power unit plays a very important role.Presently,most thermal power units are of high capacity and high parameters with very limited energy storage capacity.In the large frequency-difference primary frequency regulation triggered by the DC blocking failure of the power grid,the power contribution of the thermal power unit is affected by the energy storage of the unit,which is not conducive to the rapid recovery of the power grid accident and may cause grid frequency oscillation.In this paper,the Tianji Power Plant of Sending Power from Anhui to the East Project is taken as an example of the typical 600 MW thermal power units to conduct the testings on primary frequency regulation of large-frequency difference and the optimization of related coordination control strategies.A variety of new control strategies are adopted to improve the unit coordinated control and the primary frequency performance so as to increase the contribution of thermal power units to the power grid during faults.关键词
火电机组/协调控制/一次调频/直流闭锁/大频差Key words
thermal power generation unit/coordinated control/primary frequency regulation/UHVDC transmission system block fault/large frequency difference分类
信息技术与安全科学引用本文复制引用
费章胜,卢宏林,何永君,归一数..特高压直流闭锁后超(超)临界机组大频差控制策略[J].中国电力,2017,50(8):27-31,5.
