煤矿井下大功率开关电源的T-S模糊控制  

T-S fuzzy control of high-power switching power supply in underground coal mine

作　　者：胡俊达[1,2] 言洁奕[1] 胡慧[2] 

机构地区：[1]湘潭大学信息工程学院,湖南湘潭411101 [2]湖南工程学院电气与信息工程系,湖南湘潭411101

出　　处：《中南大学学报（自然科学版）》2013年第5期1938-1943,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(5177040);湖南省自然科学基金资助项目(09JJ3094);湖南省科技厅科技计划项目(2011FJ3126)

摘　　要：针对目前传统控制策略的不足,提出一种基于T-S模糊建模的煤矿井下大功率开关电源模糊控制方法。模型的前件参数由模糊C均值聚类算法确定,后件参数由带遗忘因子的最小二乘法辨识。通过对输出电压的实时检测采样,经过T-S模糊分析后输出控制量,调控占空比来改变IGBT通断时间,从而得到稳定的输出直流电压。采用MATLAB/Simulink仿真,验证了该方法的正确性和可行性。研究结果表明:与常规PI控制方法相比,T-S模糊控制策略在鲁棒性方面具有更好的控制效果。In view of the current inadequacy of traditional control strategy, a fuzzy control method of high-power switching power supply based on T-S fuzzy modeling in underground coal mine was proposed. In T-S fuzzy modeling method, antecedent parameters were obtained by fuzzy C-means clustering algorithm and consequent parameters were identified by least square with forget factor. The output voltage was sampled in real-time, the process of T-S fuzzy was analyzed and control variable was obtained, which was used to adjust the duty cycle to change IGBT on-off time, so as to acquire the stable output DC voltage. MATLAB/Simulink simulation was used to verify its correctness and feasibility. The results show that compared with conventional PI control method, the T-S fuzzy control strategy has good effect on the robustness.

关 键 词：大功率开关电源 T-S模糊模型 模糊C均值聚类 带遗忘因子的最小二乘法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]