電力系統(tǒng)自動化會議(已修改)
2025-07-09 16:04 本頁面
【正文】 ...../n...../永磁同步電機位置伺服系統(tǒng)的趨近律滑?？刂仆艉２?田煒(國網(wǎng)電力科學研究院 清潔能源發(fā)電研究所 南京 210003)摘要 滑模變結(jié)構(gòu)控制(SMC)是一種有效的非線性魯棒控制方法，將其用于永磁同步電機(PMSM)位置伺服系統(tǒng)可提高系統(tǒng)的魯棒性和動態(tài)特性。PMSM位置伺服系統(tǒng)采用傳統(tǒng)滑模控制方法時，需要設(shè)計多個滑模面，并通過滑模面間的切換實現(xiàn)位置和速度控制，然而滑模面的切換易引發(fā)系統(tǒng)的抖振，且控制量設(shè)計復雜。本文針對上述問題研究了基于趨近律滑模控制的PMSM位置伺服系統(tǒng)，伺服系統(tǒng)的位置和速度調(diào)節(jié)均采用滑?？刂?，可實現(xiàn)精確的位置跟蹤和速度控制，并通過李雅普諾夫函數(shù)證明了控制器的穩(wěn)定性。趨近律滑模的引入有效地抑制了傳統(tǒng)滑模控制中存在的抖振現(xiàn)象，提高了跟蹤精度。仿真和實驗結(jié)果均驗證了本文所提出方法的正確性及控制策略的有效性。關(guān)鍵詞：永磁同步電機；滑模控制；位置控制；趨近律；削弱抖振；中圖分類號：TM351PMSM Servo System Based on Reaching law Sliding Mode ControlHaibo Wang, Wei Tian(State Grid Electric Power Research Institute, Nanjing 210003)Abstract: Sliding mode control (SMC) is adopted in permanent magnet synchronous motor (PMSM) servo system to improve system robustness and characteristics. Conventional SMC method in PMSM servo systems requires several slide surfaces, while position servo and velocity control is realized by switches of these slide surfaces, which causes system chattering. In addition, design of control law is also plex. It is in this problem that a PMSM servo system based on reaching law SMC is proposed in this paper. It guarantees SMC in both position and velocity regulation and realizes accurate position servo and velocity control. Stability of the system is proved by Lyapunov Function. The reaching law method also reduces system chattering and improves the accuracy of position servo. Both simulation and experimental results demonstrate that the proposed method is correct and the designed control strategy is effective. Keyword: permanent magnet synchronous motor。 sliding mode control。 position control。 reaching law。 reduces chattering。7 / 71．引言永磁同步電機(PMSM)既具備交流電機結(jié)構(gòu)簡單、運行可靠、維護方便等優(yōu)點，又具備直流電機運行效率高、調(diào)速性能好等諸多特點。隨著現(xiàn)代電力電子和計算
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