提升末端区域电网供电能力的调控方案及稳控策略研究  

Research on Regulation Scheme and Stability Control Strategy for Enhancing Power Supply Capacity of End⁃Region Power Grid

作　　者：刘昭睿 王凯 王新建[1] 郭琪 范卓 LIU Zhaorui;WANG Kai;WANG Xinjian;GUO Qi;FAN Zhuo(Inner Mongolia Power(Group)Co.,Ltd.,Inner Mongolia Power Electric Operations Control Company,Hohhot 010010,China;Inner Mongolia Power(Group)Co.,Ltd.,Xilingol Extra High Voltage Power Supply Company,Xilinhot 026000,China;Inner Mongolia Power(Group)Co.,Ltd.,Inner Mongolia Electric Power Research Institute Branch,Hohhot 010020,China)

机构地区：[1]内蒙古电力(集团)有限责任公司内蒙古电力调度控制分公司,呼和浩特010010 [2]内蒙古电力(集团)有限责任公司锡林郭勒超高压供电分公司,内蒙古锡林浩特026000 [3]内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司,呼和浩特010020

出　　处：《内蒙古电力技术》2024年第3期52-60,共9页Inner Mongolia Electric Power

基　　金：内蒙古自治区“揭榜挂帅”项目“新型电力系统‘网源荷储’关键调度技术及其示范应用”(2022JBGS0044);内蒙古电力(集团)有限责任公司科技项目“基于PSD-FDS的蒙西高风光渗透率电力系统安全稳定分析措施验证研究”(2022-22)。

摘　　要：针对内蒙古某末端区域电网供电能力受同塔双回线路N-2故障及母线故障制约问题,开展安全稳定控制系统(以下简称稳控系统)控制策略研究。首先,基于对典型故障后末端区域电网稳定特性的仿真计算与分析,结合新能源出力、火电机组开机等对切负荷定值的影响,制订预控方案与稳控系统相结合的综合调度控制方案;然后,分析电解铝行业整流变压器负荷转移特性,提出可优先实切负荷量计算方法和适用于末端电网的分档阶梯切负荷原则,对末端区域电网稳控系统的控制策略进行优化。Considering the high requirements for power supply reliability,this study focuses on addressing the limitations imposed by faults in the same tower double loop line N-2 and bus faults within the regional power grid.A second line of defense safety and stability control system strategy is developed.By simulating typical fault scenarios and considering factors such as changes in new energy output and thermal power unit start⁃up conditions,a comprehensive scheduling control scheme that combines pre⁃control measures with stability control systems is formulated.Additionally,an analysis of load transfer characteristics specific to rectifying variable loads within the electrolytic aluminum industry is conducted,leading to proposed calculation methods for prioritizing real cut⁃off loads and step⁃by⁃step load reduction principles suitable for end⁃of⁃grid situations.

关 键 词：供电能力 安全稳定控制系统 切负荷 电压稳定 暂态稳定 

分 类 号：TM73[电气工程—电力系统及自动化]