Method and device for fast approaching to maximum load power point

• Main Authors: ZHOU XIAOXIN, YANG XIAOYU, DING PING, CHEN XINGLEI, WANG YI, AN NING
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a method and device for fast approaching to a maximum load power point. The method comprises the steps of calculating a prediction point by using a prediction-correction processtracking power flow equation equilibrium solution curve according to a high order Taylor series expansion method, determining a Taylor expansion coefficient, and calculating the step size to gradually approach to the maximum load power point. The device comprises a prediction module, a power flow calculation module and a splitting module. The invention provides a technical scheme of a strict variable step size calculation method based on the Taylor series expansion technology, the involved calculation amount is equivalent to power flow calculation with a small calculation amount, the calculation amount is small, and the calculation efficiency is high. 本发明提供了种快速逼近最大负荷功率点的方法及装置，其方法按高阶泰勒级数展开法，利用预测-校正过程追踪潮流方程平衡解曲线计算预测点、确定泰勒展开系数、计算步长逐步逼近最大负荷功率点；其装置包括预测模块、潮流计算模块和解列模块。本发明提供的技术方案基于泰勒级数展开技术的严格变步长计算方法，涉及的计算量相当于计算量不多的潮流计算，计