data acquisition system 數(shù)據(jù)采集系統(tǒng); 數(shù)據(jù)獲得系統(tǒng); 數(shù)據(jù)獲取系統(tǒng); 數(shù)據(jù)收集系統(tǒng); 資料接收系統(tǒng); 資料收集系統(tǒng); 資料擷取系統(tǒng)
The supervisory control and data acquisition system ( scada ) is a production course control and attemperment automatization system based on computer 數(shù)據(jù)采集與監(jiān)控系統(tǒng)scada是以計(jì)算機(jī)為基礎(chǔ)的生產(chǎn)過程控制與調(diào)度自動(dòng)化系統(tǒng)。
Standard test method for use in the evaluation of message communications between intelligent electronic devices in an integrated substation protection , control and data acquisition system 用于評(píng)價(jià)變電所保護(hù)控制和數(shù)據(jù)采集集成系統(tǒng)中智能電子設(shè)備之間信息通信的標(biāo)準(zhǔn)試驗(yàn)方法
According to the characteristic of nine - area diagram of substation vol / var coordinated control , this system gives the defination of fuzzy sets and the degree of membership of input / output variables , and designs corresponding control rules . the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors , and ensure voltage quality , reactive power basical balance . considering the var requirement in different load time period and the control demand in load saltation , a improved control scheme is provided . the results of simulation show the improved scheme can meet the demand of vol / var in different load time period , protect the wrong operation when either voltage or reactive power appears saltation , and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally , a background software module of substation vol / var coordinated control is designed , based on the supervisory control and data acquisition system of substation 仿真結(jié)果證明該系統(tǒng)能在各種負(fù)荷條件下確保電壓合格和無功基本平衡,且能滿足變電站對(duì)有載調(diào)壓變壓器分接頭日調(diào)節(jié)次數(shù)和并聯(lián)補(bǔ)償電容器組的日投切次數(shù)的限制。通過考慮不同負(fù)荷時(shí)段對(duì)無功功率的需求和負(fù)荷突變情況下的控制要求,對(duì)上述模糊控制策略進(jìn)行了改進(jìn),仿真結(jié)果證明改進(jìn)后的控制策略能滿足不同負(fù)荷時(shí)段對(duì)電壓和無功的要求、抑制電壓或無功突變情況下的誤動(dòng)作,且有效地減少了有載調(diào)壓變壓器分接頭和并聯(lián)補(bǔ)償電容器組的調(diào)節(jié)次數(shù)。最后基于變電站scada系統(tǒng)設(shè)計(jì)了一后臺(tái)電壓無功綜合控制軟件模塊。