| Kaifeng grid is located in east-central Henan power grid. Kaifeng grid undertakes the main power supply tasks of Kaifeng city, the four counties under the jurisdiction of Kaifeng and Longhai railway electrification traction station in Kaifeng. The area of the power supply is 6444 square kilometers, where about 5 million people live.In order to ensure safe and reliable power supply, strengthen the construction of dispatching automation system, operation maintenance and management. With the progress of automation technology, automation equipment develops to the network, digital, intelligent direction.Technology updates faster. The number of devices sharp increase. The information collection increases exponentially and maintenance work is harder. Especially as the "big run" system construction,in order to unified management of substations, monitor power transferred to the control. As the system function and further widen the scope, for the operation of the automation management level put forward higher requirements. Not only that, scheduling, monitoring, operation, protection, communication and other profession need to cooperate with each other. In order to meet the requirements, comprehensive analysis of Kaifeng power supply environment, Research and develop the AVC system on the safety of the Kaifeng automatic voltage control and control strategy.Targeted to solve the defect of the original power grid scheduling to improve the economic benefit.(1)According to the passage of Kaifeng area power supply mode of the problems of the original,this paper deeply analyzed the pattern of AVC system and structure,and reasonable develop the AVC system of exclusive Kaifeng area.(2) Combined with the actual situation of Kaifeng area, confirm AVC control strategies, including: security control, voltage adjustment and power factor correction, reactive power optimization and network loss optimization strategy.(3)On the basis of the real returns in the process of AVC system in Kaifeng and results analysis of Kaifeng power grid control voltage,make the test report and assess the performance of the AVC system. |
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