Research and Design of General Controller for Small Hydropower Generating Set

Good control systems of hydroelectric generating set can not only ensure the safe operation of hydropower generating set,but also improve the static,dynamic and transient stability stabilities of the power system.A general controller for hydroelectric generating sets,which integrates the functions of generator protection,excitation control,speed regulation,hydropower automation,quasi-synchronization control,circular temperature supervision and communication,is brought forward to improve the automation level of small hydroelectric generating sets.The hardware design of the entire set,the diagram of software design,and the realization principle of the general controller are provided.The digital signal processor(DSP) TMS320F2812 and complicated programming logical device(CPLD) EPM7128 are used as master controllers,among which,DSP realizes the host control function,and CPLD accomplishes the system logic control.The controller has the following advantages: high reliability,good agility and strong adjustability,etc.