Research on economic evaluation model for distribution network operation based on grey relation method

Distribution network power loss exceeds half of the total loss of the power system. It is significant to improve on economic benefit of the operation of the distribution network. According to the problem of the economic operation of distribution network, this paper proposes an economic evaluation model based on the grey relation method. Considering the scope and the content of the economic operation, this paper defines fifteen kinds of characteristic factor set and uses the grey correlation theory to calculate the relational coefficients among all kinds of factors, and calculates the factor weight using the primary component analysis method. Then the correlations are calculated by multiplying the grey relational coefficients matrix and factor weight matrix. Finally, the correlations are comprehensively used to analyze and evaluate the economic of distribution network. Experimental results prove that the evaluation model is reasonable and effective to evaluate the economic operation of the distribution network. According to the sequence of the correlations, the evaluation model can determine the key impact factors of the economic operation of distribution network, and it is important that the evaluation result will provide reference to the economic operation of the distribution network.