Research And Development Of Stability Monitoring System For Small And Medium Hydropower Units

With the vigorous development of China's hydropower industry, the number of hydropower units with kinds of different capacities is increasing, the stability of hydropower units has more and more prominent influences on the operating safely and effectively. Effective monitoring on the stability of hydropower units is the key measure to improve the safety of unit operation, increase the efficiency of plant operation and lower the costs of maintenance. Therefore, it has great significance on doing research on the stability monitoring of hydropower units.Based on a comprehensive summary of the features and applications of current stability monitoring system and according the functional characteristics of stability monitoring system of HOMS, we develop a stability monitoring system applying the DSP chip TMS320F2812 as its core. Combined with the emerging application, the system designed for small and medium hydropower units has high reliability, Which is integrated 32-channel analog signal conditioning and acquisition module, digital input and digital output module, frequency measuring and generating module, and LCD display module. Beside these modules, it also realizes the functions of CAN-bus communication and Ethernet communication. This paper describes and analyses specifically the hardware designing and software developing of each module, and the developing of the main application. What's more, the monitoring system can operate normally and realize all the designed functions after independent testing of each module and the overall test. All the achievements have exploring significance on the application of DSP technology to the monitoring system of hydropower units.