CAJ | 학술논문

设计了电网关键断面及安全运行规则自动发现系统的架构，该系统在读取电网实时运行数据的基础上，自动发现适应于电网在线运行状态的关键断面，并利用自动学习方法，在线自动发现关键断面上的精细规则作为电网安全运行知识。阐述了系统中各核心模块的功能，包括关键断面在线自动发现、关键断面极限传输容量在线计算、海量仿真样本在线生成、特征选择、电网安全运行规则自动发现等。所设计的系统在广东实际电网中实现了在线应用，应用效果表明：该系统自动生成电网安全运行知识的速度快，能够满足在线应用每15 min刷新一次的要求；同时，电网安全运行知识不仅能够涵盖已有的运行方式专家制定的离线知识，而且能够发现适应于电网在线运行方式的新知识，使得电网在线运行的安全性与经济性得到提升。
설계료전망관건단면급안전운행규칙자동발현계통적가구，해계통재독취전망실시운행수거적기출상，자동발현괄응우전망재선운행상태적관건단면，병이용자동학습방법，재선자동발현관건단면상적정세규칙작위전망안전운행지식。천술료계통중각핵심모괴적공능，포괄관건단면재선자동발현、관건단면겁한전수용량재선계산、해량방진양본재선생성、특정선택、전망안전운행규칙자동발현등。소설계적계통재엄동실제전망중실현료재선응용，응용효과표명：해계통자동생성전망안전운행지식적속도쾌，능구만족재선응용매15 min쇄신일차적요구；동시，전망안전운행지식불부능구함개이유적운행방식전가제정적리선지식，이차능구발현괄응우전망재선운행방식적신지식，사득전망재선운행적안전성여경제성득도제승。
The framework of an automatic discovery system for critical flowgates and security operation rules in the power grid is designed.Based on the real-time operation data of the power grid,the system is able to automatically find the critical flowgates adapted to the online operation state of the grid.By using the automatic learning method,the system can find the fine rules of critical flowgates as the security operation knowledge of the grid.The functions of the core modules of the system are described,including online automatic discovery of critical flowgates,online calculation of limit transmission capacity of critical flowgates,online generation of mass simulation samples,feature selection,automatic discovery of security operation rules of the power grid.The online application of the system has been realized in Guangdong power grid.The application effect shows that the system is able to generate the security operation knowledge fast enough and refresh it every 1 5 minutes for online application as required.Meanwhile,the knowledge is capable of not only covering the existing security operation knowledge formulated by experts offline,but also finding new knowledge adapted to the online power grid operation mode,while improving the power grid security and economy.