Sensorless Position Detection Framework for a Multi-State Switched Reluctance Actuator of a Textile Machine

2018 ◽  
Author(s):  
Xinchang Liu ◽  
Paolo Germano ◽  
Yoan Civet ◽  
Yves Perriard
Keyword(s):  
Switched Reluctance ◽  
Position Detection ◽  
Textile Machine

scholarly journals Position Estimation of a Two-Phase Switched Reluctance Motor at Standstill

Machines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 359
Author(s):  
Jiayi Fan ◽  
Insu Jung ◽  
Yongkeun Lee
Keyword(s):  
Analytical Model ◽  
Detection Method ◽  
Estimation Method ◽  
Switched Reluctance Motor ◽  
Position Estimation ◽  
Two Phase ◽  
Switched Reluctance ◽  
Pulse Injection ◽  
Position Detection ◽  
Reluctance Motor

In this paper, a sensorless position detection method of a two-phase switched reluctance motor (SRM) at standstill is proposed based on the voltage pulse injection method. Due to the torque dead zone and the lack of starting capability in the two-phase SRM, a rotor with a stepped structure is adopted to ensure continuous torque generation. The inductance characteristics of the asymmetric SRM are analyzed, and the region of the rotor position is categorized into linear regions and nonlinear regions with several key rotor positions and threshold values of self-inductance. A simple analytical model of the phase self-inductance profile of the asymmetric rotor SRM is proposed, which only requires a few linear equations, to replace the conventional look-up table. A pulse injection-based position estimation method is proposed based on the aforementioned analytical model. Short voltage pulses are injected into both phases at the same time to determine the position where the rotor is actually located at standstill. The proposed position detection method is simple and requires no extra circuitry. The simulation results are given and show the proposed estimation method can acquire a precise rotor position accurately at a standstill condition.

Detection and its Application of Real-Time Rotor Position with High-Precision for Switched Reluctance Motor Drive

2013 ◽  
Vol 415 ◽  
pp. 227-231
Author(s):  
Yan Cai ◽  
Yan Bin Wen ◽  
Chen Hui Wang ◽  
Shao Xiong Fan ◽  
Wen Tao Jiang
Keyword(s):  
Real Time ◽  
High Precision ◽  
High Performance ◽  
Switched Reluctance Motor ◽  
Motor Drive ◽  
Switched Reluctance ◽  
Rotor Position ◽  
Position Detection ◽  
Position Signal ◽  
Reluctance Motor

It is very important to detect the accurate rotor position of switched reluctance motor (SRM) for a high-performance switched reluctance motor drive. And, there are two main factors to influence SRMs rotor position detection, which are the accuracy of the position signal and the controllers real-time response. It cant meet the accuracy requirements to detect shaft position information by opto-couplers, so absolute encoder is used to produce the high-precision rotor position signal. Moreover, the all-digital controller based on DSP and CPLD achieves the real-time detection and applications of high-precision rotor position signal on SRM, with their strong ability on data processing and hardware logic describing. Due to adopting high-precision rotor position detection and control, it carries out successfully and improves the system performance. The experimental results show that the design is reliable and effective, which has great significance for the establishment and realization of high-performance SRM drive.

scholarly journals Research on Position Detection Algorithm of Switched Reluctance Motor Based on FPGA

2018 ◽  
Vol 173 ◽  
pp. 02036
Author(s):  
Xu Gang
Keyword(s):  
High Speed ◽  
Implementation Process ◽  
Detection Algorithm ◽  
Experimental Simulation ◽  
Logic Device ◽  
Program Module ◽  
Switched Reluctance ◽  
Position Detection ◽  
Reluctance Motor ◽  
Location Detection

In this paper, the Cyclone series programmable logic device (FPGA) is used to implement the location detection algorithm. The implementation process requires that the storage space be occupied as small as possible, fast, and less occupied by CPU resources. High speed A/D is used for signal detection conversion. Pipeline optimization technology is adopted to improve working speed. Program module and top layer file is compiled. Experimental simulation verifies the effectiveness and real time of the algorithm.

A Rotor Position Detection Method of SRM by Measuring Mutually Induced Voltages

2012 ◽  
Vol 462 ◽  
pp. 757-762
Author(s):  
Lin He ◽  
Jie Bai ◽  
He Xu Sun ◽  
Jie Gao
Keyword(s):  
Active Phase ◽  
Sine Wave ◽  
Induced Voltage ◽  
Primary Coil ◽  
Switched Reluctance ◽  
Rotor Position ◽  
Position Detection ◽  
Reluctance Motor ◽  
Inactive Phase ◽  
Two Phases

This paper describes a method of indirect rotor position measuring for sensorless SRM. The principle is based on measuring the mutually induced voltage in the two inactive phase which is adjacent to the energized phase of the SRM. The mutual voltage in the inactive phase, induced due to the current in the active phase, varies with the position of the rotor. In this paper the SRM was seen as a Differential transformer. One phase was chosen as the primary coil of the transformer, and the adjacent two phases were the Secondary coils. The two Secondary coils were connected in anti-series. A sine wave signal was poured to the primary coil and then we measured the mutual-inductance voltage and processed in a microcontroller to estimate the position of the rotor. The feasibility of the method was proved by an experiment of 8/6 pole four-phase switched reluctance motor.

Sign in / Sign up

Export Citation Format

Share Document