Small armature inductance high-speed permanent-magnet brushless DC motor control system without position sensor
A technology of DC motor and small armature inductance, which is applied in the direction of electronic commutation motor control, control system, single motor speed/torque control, etc., and can solve the problem that the commutation signal cannot be detected continuously
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0035] As shown in Figure 1, it is a small armature inductance high-speed permanent magnet brushless DC motor position sensorless control system. The current sensor 2 is directly connected in series between the steady DC power supply 1 and the three-phase inverter bridge 3 to detect the current of the power bus. The signal is sent to the filter circuit for low-pass filtering and removal of PWM chopping frequency interference. The filtered signal is sent to the digital controller 8 for sampling. 8. After the internal control algorithm, six channels of PWM signals are output to the three-phase inverter bridge 3 to commutate and adjust the speed of the permanent magnet brushless DC motor 4. The limiter multiplexer 5 limits the non-conducting phase voltage and then outputs it. The program-controlled amplifying comparator 6 will compare the corresponding amplified value with the voltage reference value according to the current motor speed, and when the output signal has a level jump...
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