The Design And Implement Of Reactive Power Compensation Controlling System Based On ARM

Reactive power is an important factor to the voltage stability and power lossing,and it is also related to secure and steady operation of the power systems. So it is the researching emphases. With the developing of the technology,there active power demand is increased continuously, and the distributing of reactive power in the power system becomes more and more complex,so the requirement of reactive power compensation is increasingly rigorous. Now the equipments have the problems that casting or cutting off capacitors surge, the method of castting or cutting off the capacitor is unreasonable, the equipments cant's consist a comminication systerm with the power department and so on.After analyzing the advantages and disadvantages of traditional equipments, We designed reactive power automatic controller basing on S3C44B0X,realized the function of measuring voltage,current and the power factor, finished the arithmetic of castting or cutting the capacitor basing on power factor. The control apparatus can display the condition of voltage, current, power factor and capacitors operation, and have the function of warning and botoming. Moreover users can set some parameters such as power factor upper limit, lower limit and so on.We solve the problem of the castting or cutting surging by using of the delaying time; change the unreasonable method that we cast or cut the capacitors and group capacitors, prolong the capacitors'life-span; make up of a real time communication systerms with electric power department by GPRS. The system has been finished and pass the testing.