An improved variable step hill-climbing searching algorithm for tracking maximum power point of wind power system

2016 ◽  
Author(s):  
Fei Lan ◽  
Li Tao ◽  
Jinghua Li ◽  
Zhiyang Yao
Keyword(s):  
Power System ◽  
Wind Power ◽  
Maximum Power ◽  
Hill Climbing ◽  
Maximum Power Point ◽  
Variable Step ◽  
Wind Power System ◽  
Power Point

Research on Power Industry with Application of Improved Hill-Climbing Algorithm in Wind Power Generation System

2014 ◽  
Vol 1014 ◽  
pp. 211-215
Author(s):  
Dong Dong Luo ◽  
Shou An Chen ◽  
Yuan Ping Lin
Keyword(s):  
Wind Speed ◽  
Wind Power ◽  
Maximum Power ◽  
Hill Climbing ◽  
Maximum Power Point ◽  
Hill Climbing Algorithm ◽  
Torque Loss ◽  
Tracking Direction ◽  
Wind Power System ◽  
Power Point

This article puts forward improved hill-climbing algorithm based on the problems that exist in wind power system compared with traditional hill-climbing searching MPPT control algorithm.In order to obtain optimum power curve,the improved algorithm finds the maximum power point when wind speed is steady firstly,then estimating torque loss accurately of motor to calculate system power loss indirectly when system is in the state of maximum power point.At last,the disturbance step is adjusted in real time based on distance between actual work point and optimum power curve.The improved hill-climbing algorithm does not exist the phenomenon that there is concussion near the maximum power point.What is more, the tracking direction could not be misled and tracking speed is sooner for tracking maximum power point when wind speed changes rapidly.By using Matlab for algorithm simulation,the result shows that improved hill-climbing algorithm could make up for the deficiency of traditional algorithm effectively.

An Improved MPPT Algorithm for Off-Grid Wind Power Generator Based on Hill Climbing Method

2012 ◽  
Vol 621 ◽  
pp. 334-339
Author(s):  
Ping Yang ◽  
Ping Sheng Liang
Keyword(s):  
Wind Power ◽  
Control Algorithm ◽  
Energy Conversion Efficiency ◽  
Maximum Power ◽  
Hill Climbing ◽  
Maximum Power Point ◽  
Proportional Control ◽  
Point Tracking ◽  
Power Simulation ◽  
Power Point

The control algorithm of maximum power point tracking (MPPT) plays a key role in improving the wind energy conversion efficiency. This paper proposes an improved MPPT control algorithm based on hill climbing method, which combines proportional control with hill climbing method, with the advantage of precise steady-state control from hill climbing method, the combination with proportional control enhances the speed of dynamic response. By using this algorithm in the wind power simulation system based on Matlab, we get the simulation results for both fixed and variable wind speed. The result shows that this improved algorithm can track the maximum power point of wind power generation system quickly and precisely.

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