Permanent-magnet synchronous motor sensorless control method adopting square-wave injection
A technology of permanent magnet synchronous motor and control method, which is applied in the direction of motor generator control, electronic commutation motor control, control system, etc., and can solve problems such as poor dynamic performance of the system
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0032] Specific implementation mode 1. Refer to Figure 1 to Figure 6 Specifically explain this embodiment, a permanent magnet synchronous motor position sensorless control method using square wave injection described in this embodiment, the method includes the following steps:
[0033] Step 1. Based on the high-frequency mathematical model of the permanent magnet synchronous motor, a square wave voltage signal is injected into the d-axis of the control shaft system, and the high-frequency current response signal and the fundamental frequency signal under the control shaft system are extracted. The specific method is as follows:
[0034] Step 11. Based on the high-frequency mathematical model of the permanent magnet synchronous motor, the injection frequency of the d-axis of the control shaft system is f s =1 / T s , the amplitude is The square wave voltage signal of
[0035] Carry out Park transformation according to the formula (1) to obtain the current signal i under th...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com