电力系统保护与控制Issue(7)：65-69,5.
结合模糊综合评判与决策的电力系统状态估计
Power system state estimation combined with fuzzy comprehensive evaluation and decision-making
摘要
Abstract
In power system state estimation, the accuracy of different type measurements will excert a great impact on the state estimation results, and thus to determine the weight of the measurement is particularly important. Based on the weighted least squares method, this paper proposes a weighted least squares method that the weight of measurements is determined by the Analytic Hierarchy Process (AHP). The AHP method decomposes the power system state estimation into the minimum square of the difference between the measurements and estimated values(target), different types of measurement value (guideline) and relative accuracy of each type measurement (scheme), and based on which qualitative and quantitative analysis is conducted. Experimental results of IEEE 14-bus system show that using the proposed method the state estimation values of the power system can be estimated effectively. Through comparing the proposed method with basic weighted least squares method the effectiveness and applicability of the proposed algorithm are validated.关键词
状态估计/最小二乘/层次分析法/权值Key words
state estimation/weighted least squares/analytic hierarchy process/weights分类
信息技术与安全科学引用本文复制引用
黄知超,谢霞,王斌..结合模糊综合评判与决策的电力系统状态估计[J].电力系统保护与控制,2015,(7):65-69,5.基金项目
广西科技开发攻关项目(桂科攻14122007-1)；广西电网公司科技开发项目(K-GX2013-128)；广西制造系统与先进制造技术重点实验室项目(13-051-09-001Z) （桂科攻14122007-1）
