Irregular Grounding Grid Of Algorithm And Procedure

In recent years, according to electrical power system development, when breakdown scatters the electric current after the network to be increasingly big, then breakdown the network electric potential also elevates along with it, but creates as a result of the accident which the earth measure flaw also sometimes occurs. The electric power department docking network design set a higher request. Traditional use empirical formula design calculation method, because the error big and cannot produce the entire superficial electric potential, the step voltage and the contact voltage distribution, and flexibility bad, already very was difficult to satisfy the modern design the request. Along with the electronic accounting machine technology application and the development, the numerical analysis method has obtained day by day the widespread application in the counterpoise design and the research.On century at the beginning of 70's, the overseas coordinated spacing arrangement compression-joined the question which the network existed to conduct the analysis research. According to the computer coordinated spacing network potential distribution rule computed result, discovered the network corner hole voltage is higher than the central network hole voltage, when grid number increase, the corner network hole and the central network hole voltage interpolation is bigger. To presses the conductor current distribution the computation analysis to indicate that, its corner network drifts the electric current to be bigger than the center of the conductor. Presses when the conductor number increases, two drifts the interpolationis bigger. The even network creates the power plant, the transformer substation step voltage and the contact voltage is uneven, possibly to causes the harm.This article develops the ERCP earth system numerical analysis software package embarks from the constant electricity flow field theory, the application integral equation law is separated the counterpoise computation to scatter the electric current take the conductor as the variable system of linear equations, then solution, thus calculates in the isotropic soil to meet the arbitrary shape by the level which the terrain is composed and around the irregular compound earth system earth resistance value, a electric potential, the earth potential distribution, the ground step voltage distribution, the ground contact voltage distribution and so on, future further will develop and can carry on to the arbitrary shape irregular network does not wait for the spacing automatic wiring, will suit specially in the earth system research and the design. This article analyzes the computational method which and uses, has the computation precision high, takes the computer memory and the CPU computing time are few and so on the merit, may use in the network design application, has the actual project significance.