The Design Of The10Kv Distribution Typical Customer Variable Distribution Training System

The10kV typical customer supply and distribution training system is a set of training equipment modification based on the real10kV power distribution system, the purpose is to solve the problem of10kV power supply staff and students, technical training and ability examination. It solves the problem like that, as technical training equipment, the actual operation of the distribution system is difficult, and it’s difficult to achieve the desired training effect without electrical power. So this system makes the study and practice of students and staff together. This system loads a set of control equipment based on the10kV power supply equipment. It achieves that10kV power distribution equipment can simulate the real field operation at low pressures, at the same time set up power fault in the practical work to transformation and distribution equipment. Realize the training and assessment about fault finding and training ability of trainees and electricity staff.Through the study on the principle of10kV supply and distribution system, this article designs a control system loading program. The control network of loading program is made up of upper computer, communication converter, fault simulator, virtual load power. Among them the upper computer uses RS232interface communication, the fault simulator as a lower computer uses RS485communication. To improve the efficiency of communication, communication converter finishes the level transformation function, at the same time, communication converter serial communications is extended and RS485multi-channel parallel communication is achieved through the use of FPGA (field programmable gate array) hardware programming. Fault simulator sets up the second fault through accessing the relay control contacts into the second circuit of10kV power distribution equipment. To simulate the distribution ark operation condition with different load in the real workplace, use the virtual load power to simulate the power frequency voltage and current of main loop, virtual load power source adopts the DDS digital waveform synthesis technology, realize the adjustable function of voltage and current’s phase and amplitude.