Mode Selecting Control of Interior Permanent Magnet Synchronous Motor for Full Speed Range Operation

2010 ◽  
Vol 43 ◽  
pp. 21-27 ◽  
Author(s):  
Zhi Hong Wu ◽  
Si Bei Wu ◽  
Yuan Zhu ◽  
Guang Yu Tian
Keyword(s):  
State Transition ◽  
Permanent Magnet Synchronous Motor ◽  
Operating Conditions ◽  
Constant Torque ◽  
Speed Range ◽  
Interior Permanent Magnet ◽  
Full Speed ◽  
Source Voltage ◽  
Transition Scheme ◽  
Flux Weakening

The paper presents a new method for mode selecting which includes constant torque mode and flux-weakening mode. The proposed method modifies the working modes not by LUT (look-up table), but by the size of T0. Attractive features of this state transition technique include no dependency on the machine parameters, the least calculated quantities, making full use of the source voltage of the battery, and smooth and fast transition into and out of the flux-weakening mode. Simulation results at various operating conditions are presented to verify the feasibility of the proposed mode transition scheme.

Adaptive Backstepping Control for an Interior Permanent Magnet Synchronous Motor Servo System

2011 ◽  
Vol 317-319 ◽  
pp. 120-123 ◽  
Author(s):  
Li Lin ◽  
Hong Wei Tang ◽  
Jie Tang
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Adaptive Backstepping ◽  
Field Weakening ◽  
Constant Torque ◽  
Speed Controller ◽  
Speed Range ◽  
Tracking Ability ◽  
Interior Permanent Magnet

This paper presents a nonlinear adaptive backstepping current hysteresis speed controller which can be used in both the constant-torque region and the field-weakening region for an interior permanent magnet synchronous motor (IPMSM). By using the proposed method, the adjustable speed range can be extended to 4 times that of the base speed. In addition, the d-axis current is suitably adjusted to increase the output torque of the IPMSM. Simulation results show that the implemented system has satisfactory performance, including good transient responses, good load-disturbance-rejection responses, and good tracking ability.

scholarly journals Increase Performance of IPMSM by Combination of Maximum Torque per Ampere and Flux-Weakening Methods

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Saman Toosi ◽  
Mohammad Rezazadeh Mehrjou ◽  
Mahdi Karami ◽  
Mohammad Reza Zare
Keyword(s):  
Air Conditioner ◽  
Permanent Magnet Motor ◽  
Maximum Torque ◽  
Constant Torque ◽  
Operation Speed ◽  
Speed Range ◽  
Interior Permanent Magnet ◽  
Maximum Torque Per Ampere ◽  
Interior Permanent Magnet Motor ◽  
Flux Weakening

Interior permanent magnet motor (IPMSM) was used as air conditioner compressor to reduce the power consumption and improve the performance of the system. Two control methods including maximum torque per ampere (MTPA) and flux-weakening methods were employed to increase the speed range of the air conditioner compressor. The present study adapted the flux weakening algorithm technique which can be used for constant torque and constant power regions. Results indicated that the operation speed range of the IPMSM may increase significantly by using the proposed flux weakening algorithm.

scholarly journals Structure-variable sliding mode control of interior permanent magnet synchronous motor in electric vehicles with improved flux-weakening method

2018 ◽  
Vol 10 (1) ◽  
pp. 168781401770435 ◽  
Author(s):  
Bin Liu ◽  
Yue Zhao ◽  
Hui-Zhong Hu
Keyword(s):  
Permanent Magnet ◽  
Electric Vehicles ◽  
Direct Current ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Interior Permanent Magnet ◽  
Integral Controller ◽  
Bus Voltage ◽  
Flux Weakening

A kind of flux-weakening control method based on speed loop structure-variable sliding mode controller is proposed for interior permanent magnet synchronous motor in electric vehicles. The method combines maximum torque per ampere with vector control strategy to control electric vehicle’s interior permanent magnet synchronous motor. During the flux-weakening control phase, the anti-windup integral controller is introduced into the current loop to prevent the current regulator from entering the saturated state. At the same time, in order to further improve the utilization rate of the direct current bus voltage and expand the flux-weakening regulating range, a space vector pulse-width modulation over-modulation unit is employed to contravariant the direct current bus voltage. Comparing with the conventional proportional–integral controller, the proposed sliding mode control algorithm shows that it has more reliable control performance. In addition, more prominent flux-weakening performance of the proposed flux-weakening method is illustrated by numerical simulation comparison.

scholarly journals Wide-Speed Range Sensorless Control of an IPM Motor for Multi-Purpose Applications

Inventions ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 24
Author(s):  
Maria Laura Bacci ◽  
Ferdinando Luigi Mapelli ◽  
Stefano Mossina ◽  
Davide Tarsitano ◽  
Michele Vignati
Keyword(s):  
Permanent Magnet Synchronous Machine ◽  
Mechanical Reliability ◽  
High Frequency Signal ◽  
Constant Torque ◽  
High Speeds ◽  
Speed Range ◽  
Interior Permanent Magnet ◽  
Signal Injection ◽  
Space Cost ◽  
Wide Speed Range

In a growing number of battery-driven applications the need of removing any position and speed transducer is taking over due to space, cost and mechanical reliability constraints, further than making the installation easier as requiring less wiring. This paper presents the development of a sensorless algorithm capable of running an Interior Permanent Magnet Synchronous Machine (IPMSM), assuring constant torque production in the whole speed range, form standstill to high speeds. This is achieved with an hybrid method: at standstill and very low speeds the saliency of the IPM is exploited through an High Frequency Signal Injection (HFSI), which assures a robust estimation of the rotor position. At medium to high speeds an advanced V-I estimator is adopted in order to enhance the motor performances. The developed algorithm comes out of being highly scalable as it requires very little tuning, resulting in a multi-purpose application which can be employed with any motor size.

Sign in / Sign up

Export Citation Format

Share Document