Research on PMSM Rotor Position Decoding of the Forklift Steer-by-Wire System Based on the Four-Line Resolver and AD2S1200
Wang Jianming1, 2, Yuan Chenhu1, Liu Rui1, 2, Li Kai1, 2
1. Tianjin Key Laboratory of Advanced Technology of Electrical Engineering and Energy Tianjin Polytechnic University Tianjin 300387 China; 2. School of Electric and Information Engineering Tianjin Polytechnic UniversityTianjin 300387 China
Abstract:The rotor position decoding was studied in this paper for controlling the permanent magnetic synchronous machine (PMSM) of the forklift steer-by-wire system based on the four-line resolver and the chip AD2S1200. Firstly, an amplifying circuit was designed to amplify and filter the sine wave signal of the chip AD2S1200, and this signal was used for the sine excitation signal of resolver. The single-ended output signal of rotary transformer is a sine and cosine signal with angle information. Then, this signal was processed into a differential-mode input signal needed by the chip AD2S1200 through the conditioning circuit. The angle information processed by interface circuit also was obtained by the DSP chip MC56F8367 of Freescale. And a digital filtering method was applied to process the angle information. Finally, the PMSM rotor position was obtained exactly. The experiment results show that the decoding angle has the characteristics of good accuracy, smooth waveform and excellent real-time performance, and it can meet the demand of PMSM motor control of forklift Steer-by-Wire system.
汪剑鸣, 袁臣虎, 刘瑞, 李凯. 基于四线旋转变压器及AD2S1200的叉车线控转向永磁同步电机角度解码研究[J]. 电工技术学报, 2015, 30(增刊2): 95-100.
Wang Jianming, Yuan Chenhu, Liu Rui, Li Kai. Research on PMSM Rotor Position Decoding of the Forklift Steer-by-Wire System Based on the Four-Line Resolver and AD2S1200. Transactions of China Electrotechnical Society, 2015, 30(增刊2): 95-100.
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