Rotor Position Estimation Strategy Based on Rotating High-Frequency Voltage Injection Using Synchronous Frequency Filter
Source abstract
Abstract
In order to improve the performance of motor drive systems, this paper introduces a sensorless control method for interior permanent magnet synchronous motors (IPMSM) based on the rotating high-frequency voltage injection method. The demodulation method using a synchronous frequency filter (SFF) instead of a bandpass filter (BPF) and a high pass filter (HPF) is proposed. The structure and transfer function of SFFs are introduced, and their characteristics are simulated and analyzed. Therefore, the center frequency of SFFs can be adaptively adjusted according to the estimated rotational speed, which is convenient for frequency setting. Finally, according to the proposed rotating high-frequency voltage injection method, the simulation model is built. The experimental results verify that the control strategy can maintain good position estimation accuracy, better speed tracking performance and anti-load disturbance performance.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Sensorless Control of Electric Motors · Iterative Learning Control Systems · Electric Motor Design and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Automation, Huaiyin Institute of Technology, Huai’an 223003, China
Funding
Natural Science Foundation of Huai’an City · Six Categories Talent Peak of Jiangsu Province · Huai’an Key Laboratory of motion control and converter technology
References (29)
Show source-provided references
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