Charge/Discharge Chemical Processing Controller For Storage Battery

Charge/Discharge chemical processing is important to storage battery production. This thesis researches hardware and arithmetic software scheme of an embedded controller system, which can control four charge/discharge devices and operate in distributed architecture. With a MCU and a dot matrix LCD Chinese characters display introduced and a serial E2PROM to protect data, a reliable compact controller is developed via photo coupler isolated and serial A/D and D/A for process input and output. And a RS-485 communication interface contributes to network of distributed system for centralized supervisory control.With the application of real-time multi-tasks mechanism and modulization software structure, the controller can set and modify the parameters on-line, collect and process the real-time data of the four-battery charge/discharge devices, termly and digitally regulate the closed loop and monitor the real-time faults, so that the system can control different styles of charging and discharging operate mode such as in constant current style, constant voltage with limited current style and static style.A prototype of the controller is made. The debugging and test of the controller in the simulated operating process show it meets the initial function and performance demands.