Research And Development Of Computer Supervisory Control System On Small Hydroelectric Plant

This paper analyzes the development of the computer supervisory & control system which is used in small hydropower stations on abroad and at home. Based on the status quo of the small hydropower station at home, a new supervisory & control system is developed for small hydropower station. Device and software are included. Device acts as a unit for a generator set and software provides friendly interface to monitor and control assistant devices. Device is distributed designed and made up of microprocessor and periphery electro-circuits. Motorola HC12 MCU acts as core and analog measure module, switch status monitor module, relay control module, LCD display module and communication module are included in periphery electro-circuits. Software is developed by Visual Basic 6.0 and database is developed by SQL Server 7.0. With the software, device can operate with the procedure step by step which is solidified by communication between PC and device. USB and RS232 communication interfaces are available in device which makes communication easy. The computer supervisory & control system is tested by Sanbeihe hydropower station handbook and achieves good result.