Integrated control, telecontrol, and protection system for hydroelectric power plants

摘要

Most hydroelectric power plants in Japan are operated over the telecommunications system as unmanned power plants. To achieve this operation, a fast and reliable process must be realized with the aid of microprocessors. On the other hand, the need for economy and space saving is pushing the industry toward integration of various components of the distributed control system. A control system for hydroelectric power plants with integration of the sequence controller, automatic voltage regulator (AVR), and governor (GOV) has already been realized. Recently, however, we have developed a new integrated control system in which further integration of the telecommunication function and protective relay function has been achieved. This paper introduces the newly developed integrated control system.