文章摘要
提高APF谐波补偿能力的全局快速Terminal滑模控制
Global Fast Terminal Sliding Mode Control for Improving APF Harmonic Compensation Capability
投稿时间:2019-05-08  修订日期:2019-07-14
DOI:
中文关键词: 有源电力滤波器  全局快速Terminal滑模  指数趋近律的滑模  抖振
英文关键词: Active Power Filter  global fast terminal sliding mode  exponential reaching law sliding mode  chattering
基金项目:国家自然科学基金资助项目(51207097)。
作者单位E-mail
崔浩 国网湖北省电力有限公司襄阳供电公司 280886354@qq.com 
舒朝君 四川大学 电气工程学院  
朱英伟 四川大学 电气工程学院  
章彦燕 国网湖北省电力有限公司襄阳供电公司  
许军 国网湖北省电力有限公司襄阳供电公司  
王文清 国网湖北省电力有限公司襄阳供电公司  
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中文摘要:
      谐波补偿环节的谐波电流跟踪控制是衡量有源电力滤波器(Active Power Filter, APF)性能优劣的关键因素之一。针对常规滑模控制中,无论如何调整线性滑模面参数都无法使得跟踪误差在有限时间内收敛到零的问题,提出了电流环基于全局快速Terminal滑模的谐波电流跟踪控制策略。该方法在线性滑模面的基础上引入非线性函数,弥补了常规滑模控制只能实现状态渐进收敛的缺点,在提高滑模控制瞬态性能的同时,消除了切换项,从本质上削弱了抖振。在不改变谐波检测环节的条件下,对APF进行稳态和暂态性能测试,将本文提出的全局快速Terminal滑模控制与常规指数趋近律的滑模控制对比验证了本文控制策略的正确性和有效性。
英文摘要:
      Harmonic current tracking control in harmonic compensation is one of the key factors to measure the performance of Active Power Filter. Aiming at the problem of adjusting linear sliding surface parameters anyway cannot make the tracking error converge to zero in a finite time for ordinary sliding mode control, proposed harmonic current tracking control strategy based on global fast terminal sliding mode control in current loop. The method introduces nonlinear function based on a linear sliding surface, to make up for shortcomings of ordinary sliding mode control can achieve gradual convergence of state, while improving the transient performance of the sliding mode control, the switching term is eliminated, which essentially weakens the chattering. The steady-state and transient performance tests of Active Power Filter are carried out without changing the harmonic detection link, the comparison between the global fast terminal sliding mode control proposed in this paper and the sliding mode control of the conventional exponential approach law verifies the correctness and effectiveness of the control strategy in this paper.
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