CAJ | 학술논문

利用风、光、氢等新能源发电过程中，经常遇到能量输入和功率输出的随机性，这对电源变换器鲁棒性设计提出了更高要求。针对传统滑模控制变换器由于自身控制律的离散型存在不可避免的抖颤问题，基于一种Super-Twisting控制算法设计无抖颤滑模变换器，其核心思想是将离散控制律转移至更高阶的滑模面，从本质上消除抖颤的影响。以电源变换器Buck-Boost为例，针对新能源发电中存在的间歇性扰动问题，与典型PI控制效果进行对比试验。仿真结果表明：1）动态滑模控制变换器在输入、输出大扰动下具有很强的鲁棒性；2）在频响跟踪方面具有快速收敛性，其变换器频响可以达到20 Hz以上，远优于传统P I控制。
이용풍、광、경등신능원발전과정중，경상우도능량수입화공솔수출적수궤성，저대전원변환기로봉성설계제출료경고요구。침대전통활모공제변환기유우자신공제률적리산형존재불가피면적두전문제，기우일충Super-Twisting공제산법설계무두전활모변환기，기핵심사상시장리산공제률전이지경고계적활모면，종본질상소제두전적영향。이전원변환기Buck-Boost위례，침대신능원발전중존재적간헐성우동문제，여전형PI공제효과진행대비시험。방진결과표명：1）동태활모공제변환기재수입、수출대우동하구유흔강적로봉성；2）재빈향근종방면구유쾌속수렴성，기변환기빈향가이체도20 Hz이상，원우우전통P I공제。
In the process of power generation by new energy sources, such as wind, light and hydrogen, the ran-domness of energy input and power output often appear;this puts forward higher requirements for the robust design of power converters. The power converter based on traditional sliding mode, due to its discrete control law, makes chattering phenomenon inevitable. In order to suppress the above problem, this paper presents a novel chattering-avoiding converter based on the super-twisting sliding modes. The core idea is to transfer the discrete control law to high order sliding manifold, essentially eliminating the impact of chattering effect. To remove the intermittent dis-turbance in the new energy power generation, this paper compares the effect of the converter controlled by super-twisting sliding mode controller with the classic PI controller in a typical Buck-Boost power converter as an example. The simulation results and their analysis show preliminarily that: (1) under the condition of large disturbances in input and output, the converter controlled by super-twisting sliding mode has stronger robustness;(2) in response tracking, the converter has a faster convergence;the frequency response can reach more than 20 Hz, far superior to the classic PI control.