| Automatic Voltage Control, AVC is the establishment in take the computer as the core energy management system management system (or dispatch automated system),the transformer substation synthesis automation and the power plant generator control system and the long-distance closed-loop control system which unites through the high reliable information transfer system. AVC is establishes the large-scale electrical power system, a realization automation operating control item is most practical, themost advanced function.. AVC strongly has reflected the electrical power system in domain the and so on computer technology, communication and automatic control technology application practice and the comprehensive level. Therefore, AVC also is weighs the electric power is the automated level and the synthesis technology quality important symbol., Simultaneously also can cause the dispatcher automated system control level, the control quality and the control effect unceasingly enhances.How does the paper mainly study realizes the Yunnan electrical networkidle work/voltage automatic loop control, voltage regulation,under the voltage quality precursor in guarantee, reduces the system net to damage as far as possible, enhances the electrical network movement the efficiency. Simultaneously the maximum limit reduced equipment operation number of times, enhances the equipment the service life, reduces the accident probability, guarantees the electrical network movement the security.Cooperates the mode automatic optimization control system according to the lamination the research, and distributes by the movement in the province control center optimization data processing center system in each local, the power plant, the 500KV transformer substation coordination control subsystem, as well as the correlation communications system and the network compose. Province control center optimization data processing center system, according to entire net 220KV above main grid the data will carry on theentire net centralized idle work to optimize, obtains each subsystem the loop control target, the communications system is responsible to optimize under the target to send to each control subsystem. Under each control subsystem basis control center sends the optimized control target carries on the jurisdiction district optimized control, thus helps the net the disperser coordination optimization control goal. All levels of optimized control to the electrical network is all safe, high quality, the economical dispatch principle carries on the design, guarantees the electrical network the security, high quality and the economical movement.According to the reactive voltage lamination level-to-level administrationprinciple, the province moves primary cognizance the generatrix voltage andthe unit idle work implementation which 220KV and above factory stands tothe dispatch jurisdiction scope in controls and counts the inspection. Theprovince adjusts the implementation control the main method to include:Adjusts the power plant unit idle work power source, throws cuts the 500KVtransformer substation low pressure idle work canceller and the host changesthe tapping adjustment, as well as adjusts the AVC control system through theplace to realize 220KV and following transformer substation low pressureelectric capacity compensation system throws cuts.Considered the Yunnan electrical network at present the 500KV/220KV system is in the electromagnetism ring net movement and the reactive voltage management present situation, the system research work may adjust the AVC master station system, the power plant supervisory system according to the province (AVQC), the transformer substation supervisory system (AVQC) four parts carries on.Its basic duty is the realization following goal:1, Yunnan Province control center voltage idle work synthesis closed loop optimization control system research;2, Yunnan Province control center master station system research;3, Control system sub- station research;4, Correspondence plan research. |
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