增加延時(shí)補(bǔ)償?shù)挠来磐诫姍C(jī)電流預(yù)測(cè)控制
裴進(jìn)
（華電湖北發(fā)電有限公司黃石熱電分公司，湖北 黃石 435000）
摘 要：電流預(yù)測(cè)控制是交流電機(jī)控制領(lǐng)域廣泛應(yīng)用的一種優(yōu)化控制方法。從永磁同步電機(jī)在同步旋轉(zhuǎn)坐標(biāo)系中的數(shù)學(xué)模型出發(fā)，描述了離散化的電流預(yù)測(cè)控制方法來(lái)提高電機(jī)控制系統(tǒng)電流環(huán)的性能。針對(duì)控制延時(shí)導(dǎo)致定子電流在參考值附近振蕩并增加電流紋波和轉(zhuǎn)矩脈動(dòng)的問(wèn)題，采用一拍延時(shí)補(bǔ)償提高了控制系統(tǒng)的性能，仿真驗(yàn)證了所描述方法的有效性和可行性。
關(guān)鍵詞：永磁同步電機(jī)；電流控制；預(yù)測(cè)控制；一拍延時(shí)補(bǔ)償
中圖分類號(hào)：TM351 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2019)05-0023-04
Predictive Current Control of Permanent Magnet Synchronous Motor with Delay Compensation
PEI Jin
（Huadian Hubei Power Generation Co., Ltd, Huangshi Thermal Power Branch, Huangshi 435000, China）
Abstract: The predictive current control is a kind of optimal control method extensively applied in the area of AC motor control field. Starting from the mathematical model of permanent magnet synchronous motor in synchronous rotating coordinate system, this paper described the discretized predictive current control method to improve the performance of motor control system current loop. In allusion to the problem that the control delay will lead to the current vibration nearby the reference value and the increase of current ripple and torque pulsation, One step delay compensation was adopted to improve the performance of control system. The simulation verifies the effectiveness and feasibility of the method described above.
Key words: permanent magnet synchronous motor; current control; predictive control; one step delay compensation
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