Distribution System Risk Assessment With Intermittent Distribute Generation

In order to evaluate quantitatively the influence of intermittent distributed power supply on distribution system, the stochastic model of distributed power supply is improved. Vertical distribution system circuit random failure probability model, based on the full probability theory in the risk assessment in a random fault line road. Establish a negative charge voltage gain and the loss of the limit of the section point level and system level two levels of risk indicators, in the comprehensive evaluation system of the influence of many kinds of random factors, realized the quantitative evaluation of distribution system operation risk. The test example verifies the real use and effectiveness of the proposed algorithm.