The design and implementation of street light scada system control center software based on client / server and used tools of visual basic 6 . 0 and sql server 2000 are introduced in the end 本文詳細(xì)論述了基于c / s模式,以vb6 . 0和sqlserver2000為開發(fā)平臺的路燈scada系統(tǒng)控制中心主控軟件及數(shù)據(jù)庫部分的設(shè)計(jì)與實(shí)現(xiàn)。
Phaser including phasor of generators and phasor of bus voltage are most important state variables that reflect stability of power systerm . if it can be measured at real time , dispatcher adopts in effect controlling step based on phasor such that all generators can still be synchronously operated to do this , it is necessary to messure the phasor of generators and to send . them to the power system control center 相角(包括發(fā)電機(jī)的功角和母線電壓相角)是反映系統(tǒng)穩(wěn)定性的最主要的狀態(tài)量,如果它能夠被實(shí)時測量,可以根據(jù)相角信息采取有效的控制措施,從而使得發(fā)電機(jī)群仍然能夠保持同步。為此,必須測量各發(fā)電機(jī)的功角,并把此信息送到調(diào)度中心。