Research On Huizhou Pumped Storage Power Station Auxiliary Supply System Control Tactic And Implementary Case

With the network communications and software technology, auxiliary power plant automation control system as the rise in recent years, a new hot spot. And power plant control system focused on the part of the electrical power grid access control contrast, auxiliary power control system to focus more on the internal power plant, power plant to achieve the protection of low voltage electrical systems, measurement, measurement, control, analysis integrated function.Auxiliary power system reliability will directly affect the safe operation of power plants, Huizhou Pumped Storage Power Station Auxiliary Power System equipment as compared with conventional power station complex, and require the conditions with no one on duty, so in addition to the main wiring demands flexible and reliable system, easy switching operation, but also require the system to normal switching and local accident (fault) operating under the control automatically completed quickly.Huizhou Pumped Storage Power Station with 18kV, 10kV and 400V three-level voltage to a single bus section to the main terminals. Auxiliary power control system based on programmable controllers, would operate independently of the 18 \ 10KV medium voltage system and 400V low voltage systems and numerous types of protection devices, monitoring equipment, automatic devices, or via field bus Ethernet link together to form systems. On the one hand, to achieve with the power monitoring system for digital information exchange, thus greatly reducing the measuring point mode of investment and hard-wired cable investment; the other hand, through the network and back office software to realize the coordinated control of electrical systems, fault analysis and operation management, improve the level of the power plant automation and operations management.This power plant control system according to the characteristics, combined with examples of Huizhou Pumped Storage Power Station Project and control strategy implementation plan for its research, mainly to do some work:1,Introduce the auxiliary power control system in the development of our country, works with the historical process control experience.2,Pumped Storage Power Station in Huizhou power plant control system as an example, power plant control system configuration and selection of structures and equipment.3,Huizhou pumped storage power station on the analysis of control strategies on how to avoid the higher power supply automatic switching equipment from leading to lower investment and repetitive movements.