Research On Coordination Assessment Of Power Plants And Network In Power System Planning

The coordination of power plants and network planning has significant impact on the long-term safety and economy of the power system, thus has always been an important issue in power system assessment. With the development of the electricity marketing process and the execution of the national energy policy, the problem of the coordination of power plants and network planning has become increasingly conspicuous. In light of the uncertainty, complexity and other characteristics of power system planning under new situation, this paper firstly constructs a system of coordination evaluation index based on the analysis of various coordination modes. Secondly, we utilize fuzzy analytic hierarchy process to construct an evaluation model, and study different methods of determining the membership functions of qualitative and quantitative indicators, as well as the evaluation weights. Thereafter, apply Entropy Weight and Extension Weight to the evaluation model, and contrast the different applications of Subjective Weight and Objective Weight. Finally, the application of the coordination assessment system is analyzed with a numerical example, evaluate results obtained using different weights are compared, and the effectiveness and practicability of the evaluation model and approaches of setting weights are demonstrated.