實用電力英語培訓(xùn)課程(編輯修改稿)
2025-01-19 15:25 本頁面
【文章內(nèi)容簡介】 nsmission lines Largescaled plants Coordinate economic operation of various branch grids Medium and small scale plants Distribution center 220 Kv transmission lines 500 Kv substation High voltage customers 220 Kv key substation 220 Kv substation 110Kv, 35 Kv substation 110Kv transmission lines and below Interregional connection above 500 Kv Branchgrid level regional level County level National level Provincial level HUI REN NCEPU 4515 Importance of dispatching automation system ? localized protective relay and automatic equipments ? Protective relays clear fault as quickly as possible. ? Exciter control maintains voltage quality and balances reactive power. ? Load shedding keeps frequency variation within acceptable range. ? …… ? Use local information. ? Can clear fault as quickly as possible. ? Limitation: without consideration of whole power system situation. ? Centralized dispatching automation system ? Use information collected from power plants and substations under the charge of the dispatching center. HUI REN NCEPU 4516 ? Run advanced software using realtime information from power plants and substations. ? Do fault diagnosis and identification. ? they are not replaceable by each other, and they are plementary to each other. ? Power dispatching automation system(調(diào)度自動化系統(tǒng) ). The task is providing to operators(調(diào)度員 ) all various kinds of real time information of power system, making management and dispatching decision to ensure safety and economical operation of power system. Sometimes it is also called EMS (Energy Management System)(能量管理系統(tǒng) ) HUI REN NCEPU 4517 ? EMS includes the following power advanced software: Load Forecasting(負荷預(yù)測 ), Automated Generation Control(自動發(fā)電控制 ), State Estimation(狀態(tài)估計 ), Transient Stability Analysis(暫態(tài)穩(wěn)定分析 ), Optimal Power Flow(最優(yōu)潮流 ), Dispatcher Training Simulator(調(diào)度員培訓(xùn)仿真系統(tǒng) )… ? The basics of these
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