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一種改進(jìn)滑模控制器的永磁同步電機MTPA控制研究

來源：電工電氣發(fā)布時間：2021-02-23 09:23 瀏覽次數(shù)：1083

一種改進(jìn)滑?？刂破鞯挠来磐诫姍CMTPA控制研究

林繼燦¹，劉書敏²，林敏怡²

(1 廣東海洋大學(xué)寸金學(xué)院智能制造學(xué)院，廣東湛江 524094；2 廣東海洋大學(xué)寸金學(xué)院管理學(xué)院，廣東湛江 524094)

摘要：為改進(jìn)PI控制器在永磁同步電機中的速度調(diào)節(jié)性能，提出新冪指數(shù)趨近律的滑?？刂破鞯挠来烹姍CMTPA矢量控制策略，在傳統(tǒng)的指數(shù)趨近律中增加了新的冪次趨近律，提高系統(tǒng)的收斂能力，同時減小抖動。在永磁同步電機中引入補償式最大轉(zhuǎn)矩電流比的控制策略，根據(jù)電機中電流變換，得到控制過程中的轉(zhuǎn)矩，利用獲得的轉(zhuǎn)矩作為補償信號，提高q 軸電流的響應(yīng)。仿真結(jié)果表明，與常規(guī)的矢量控制方法和傳統(tǒng)滑模控制器對比，該結(jié)合方法能有效減小系統(tǒng)抖動，具有更強的控制精準(zhǔn)性和抗負(fù)載轉(zhuǎn)矩擾動能力。

關(guān)鍵詞：冪次趨近律；滑?？刂?；最大轉(zhuǎn)矩電流比；轉(zhuǎn)矩補償；永磁同步電機

中圖分類號：TM351 文獻(xiàn)標(biāo)識碼：A 文章編號：1007-3175(2021)02-0012-05

Research on MTPA Control of Permanent Magnet Synchronous Motor

Based on Improved Sliding Mode Controller

LIN Ji-can¹, LIU Shu-min², LIN Min-yi²

（1 School of Intelligent Manufacturing, Guangdong Ocean University Cunjin College, Zhanjiang 524094, China;

2 School of Management, Guangdong Ocean University Cunjin College, Zhanjiang 524094, China）

Abstract: In order to improve the speed regulation performance of PI controller in permanent magnet synchronous motor, a new power exponential approach law sliding mode controller for permanent magnet motor MTPA vector control strategy is proposed. A new power approach law is added to the traditional exponential approach law to improve the convergence ability of the system and reduce the jitter.The control strategy of compensating maximum torque per ampere is introduced in the PMSM. According to the current transformation in the motor, the torque in the control process is obtained, and the obtained torque is used as the compensation signal to improve the response of q-axis current. The simulation results show that compared with the conventional vector control method and the traditional sliding mode controller, the combined method can effectively reduce the system jitter, and has stronger control accuracy and anti load torque disturbance ability.

Key words: power approach law; sliding mode control; maximum torque per ampere; torque compensation; permanent magnet synchronous motor

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一種改進(jìn)滑模控制器的永磁同步電機MTPA控制研究