Research On Substation Of Monitor

At present, the electrical energy is getting more and more important in the people daily life. Enhancing the power supply reliability is a difficult problem for the power supply system . The substation is the spot of energy collection and distribution. Substation's reliability may be question breach which is useful for continual power supplies. In view of this kind of question, a set of supervisory system is designed and developed, and we hope that it may be helpful for the problem.Two algorithms which are Fourier algorithm and two points algorithm have been analyzed theoretically. According to work condition and compared with two algorithm's good and bad points, Fourier algorithm that is used for calculating peak-to-peak value, the beginning of the phase and the power had been decidedIn view of monitoring object, the system hardware structure and software function were designed. The 89C51 MCU was the core of controlling. Gathering board was designed as the hardware platform. It mainly includes an 8 channel A/D chip, a RS232 chip which is useful for communication, circuit of digital input or output that was consist of 6 group digital outputs, 4 group digital inputs. On aspect of software, vc++ was take regard as platform. The communication module, the real-time curve module, the historical curve module, the data report form module and electrical wiring module were designed. The diagram of hardware circuit connection and method of application for each component are given in the paper. The software monitor routine flow chart and the source program were funded Monitoring software was tested .the result would be showed in pictures.This system was reliable, easy to be expanded and operated .the man-machine interface was friendly.