Minimized Current Sensor and Power Switches for Four-Phase Low-Cost Switched Reluctance Motors

2021 ◽  
Author(s):  
S.M. Mazahir Hussain Shah ◽  
Nasir Ali ◽  
Qiang Gao ◽  
Grace Firsta Luckman ◽  
Jin-Woo Ahn
Keyword(s):  
Low Cost ◽  
Current Sensor ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Power Switches

scholarly journals Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 917
Author(s):  
Ickjin Son ◽  
Grace Firsta Lukman ◽  
Mazahir Hussain Shah ◽  
Kwang-Il Jeong ◽  
Jin-Woo Ahn
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Magnetic Characteristics ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Design Considerations ◽  
Cooling Fan ◽  
Cooling Fans ◽  
Power Switches ◽  
Selection Of

Switched reluctance motors (SRMs) are simple in structure, easy to manufacture, magnet-less, brushless, and highly robust compared to other AC motors which makes them a good option for applications that operate in harsh environment. However, the motor has non-linear magnetic characteristics, and it comes with various pole-phase combinations and circuit topologies that causes many difficulties in deciding on which type to choose. In this paper, the viability of SRM as a low-cost, rugged machine for vehicle radiator cooling fan is considered. First, necessary design considerations are presented, then three commonly use types of SRM are analyzed: A 3-phase 6/4, 3-phase 12/8, and a 4-phase 8/6 to find their static and dynamic characteristics so the most suitable type can be selected. Simulation results show that the 8/6 SRM produces the highest efficiency with less phase current which reduces the converter burden. However, with asymmetric half bridge converter, eight power switches are required for 8/6 SRM and thus put a burden on the overall drive cost. As a solution, the Miller converter with only six switches for four phase SRM. To verify the proposed idea, the 8/6 SRM was manufactured and tested. The results show that Miller converter can be used for the proposed SRM with slightly reduced efficiency at 80.4%.

Low‐cost direct instantaneous torque control for switched reluctance motors with bus current detection under soft‐chopping mode

2016 ◽  
Vol 9 (3) ◽  
pp. 482-490 ◽  
Author(s):  
Chun Gan ◽  
Jianhua Wu ◽  
Qingguo Sun ◽  
Shiyou Yang ◽  
Yihua Hu ◽  
...  
Keyword(s):  
Low Cost ◽  
Torque Control ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Current Detection

scholarly journals Multiport Driving Topology for a Photovoltaic Aircraft Light Transmission System Driven by Switched Reluctance Motors

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3687
Author(s):  
Xiaoshu Zan ◽  
Wenyuan Zhang ◽  
Kai Ni ◽  
Zhikai Jiang ◽  
Yi Gong
Keyword(s):  
High Performance ◽  
Light Transmission ◽  
Simulation Analysis ◽  
Low Cost ◽  
Power Source ◽  
Battery Pack ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Output Torque ◽  
Reduce Energy Consumption

In order to meet the working requirements of high performance and low cost for a photovoltaic (PV) aircraft driven by switched reluctance motors (SRMs), a multiport driving topology (MDT) is proposed. The converter is composed of an asymmetric half-bridge and a multiport power source circuit. Three driving and two charging modes can be realized through simple control of the switches. The output torque and the efficiency of the system are improved, because the excitation and demagnetization processes are accelerated by increasing the commutation voltage. The battery pack can be self-charged when the system is running, and PV panels can be used to charge the battery pack to reduce energy consumption when the system is stationary. The simulation analysis and the experimental verification on an 8/6 SRM confirm the effectiveness of the MFT proposed in this paper.

scholarly journals Simulation of Energy Dump Converter Topology for Switched Reluctance Motors

2018 ◽  
Vol 7 (3.15) ◽  
pp. 99
Author(s):  
A Ayob ◽  
S Abd Halim ◽  
Y Yusof
Keyword(s):  
Low Cost ◽  
Switched Reluctance Machine ◽  
Switched Reluctance Motors ◽  
Design Guideline ◽  
Passive Components ◽  
Switched Reluctance ◽  
Reluctance Machine ◽  
Converter Topology ◽  
Is Integration ◽  
Economical Choice

The switched reluctance machine (SRM) is the least expensive machine to produce yet it is very reliable.  An SRM drive system has to be designed so that there is integration between the machine and the converter-controller configuration. This paper focuses on the resistor dump converter topology where most of the energy from the windings is dissipated in a resistor. A detailed analysis and simulation of the converter has been conducted and a design guideline for the proposed converter is laid out.  The resistor dump converter has a low component count and this enables it to achieve a low cost converter.  Simulation results show that for the resistor dump converter additional snubbers are required.  This leads to an increase in complexity of the controller as more parameters need to be considered.  Also, the addition of the passive components of the snubber makes the circuit less reliable and costly. For the purpose of just looking into detail on the behaviour of the converter, it is sufficient to look at the results of the simulation using a static inductor to model the SP-SRM.  If cost is to be the priority, the most economical choice must be made but within limits of the application. 

scholarly journals Artificial Intelligence Based Vector Controller for Switched Reluctance Motor (SRM)

2019 ◽  
Vol 9 (2) ◽  
pp. 1350-1352
Keyword(s):  
Simple Structure ◽  
Low Cost ◽  
Switched Reluctance Motor ◽  
Industrial Applications ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
High Effectiveness ◽  
Points Of Interest ◽  
Reluctance Motor ◽  
Torque Ripples

The prevalence of the Switched Reluctance Motors (SRMs) increments step by step because of its points of interest, for example, Simple structure, low cost, less weight, high effectiveness and high beginning torque when contrasted with regular motors. SRM is an electric motor which has invaluable highlights that qualifies it to be utilized in electric vehicle, aviation and industrial applications. In this paper, the switched reluctance motor is controlled using vector control by AI controller (fuzzy) so as to limit the torque ripples by directing torque inside indicated hysteresis band. AI Control of SRM encouraged through an irregular converter. The proposed AI controllers are executed in MATLAB/SIMULINK for specified SRM parameters. As indicated by the attained outcomes the SRM behavior is better when impelled by AI controller in contrast with usual controllers.

scholarly journals Design of Sliding Mode Speed Controller for Switched Reluctance Motor

2018 ◽  
Vol 8 (02) ◽  
Author(s):  
Mohammed Moanes E. Ali ◽  
Yousif Khudhair Fakhir
Keyword(s):  
Sliding Mode ◽  
Low Cost ◽  
Switched Reluctance Motor ◽  
Dynamic Responses ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Quick Recovery ◽  
Speed Controller ◽  
Reluctance Motor ◽  
Electrical Motors

Switched Reluctance motors (SRM) can be classified into a group of multi-speed electrical motors. The low cost, rugged constructions and simple are feature advantages for this motor. The simplicity is the result of their torque generation principle, which known as variable reluctance principle. The SRM has many more features that have made it to be common for applications in commercial and industrial markets. The main disadvantage of SRM is the nonlinearity that it appears in their dynamics because of the magnetic saturation. It is required for SRM speed controllers to have features such as fast dynamic responses, parameter insensitivity and quick recovery from load disturbances. In this paper, a design of a robust sliding mode speed controller based on a nonlinear mathematical model is proposed. Matlab/Simulink software is used to simulate switched reluctance motor drive system under control of SMC. 6/8 switched reluctance motor has been taken as case study. The performance of proposed sliding mode control is tested at different load and speed conditions, and comparisons with conventional PI control for switched reluctance motor are presented. The sliding mode controller exhibits a better performance than the PI controller for all the studied cases.

A Novel Modified Turn-on Angle Control Scheme for Torque-Ripple Reduction in Switched Reluctance Motor

2016 ◽  
Vol 7 (4) ◽  
pp. 1110 ◽  
Author(s):  
Milad Dowlatshahi ◽  
Mehrdad Daryanush
Keyword(s):  
Low Cost ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Industrial Applications ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Turn On ◽  
Reluctance Motor ◽  
Ripple Reduction ◽  
Torque Ripples

In recent years, Switched Reluctance Motors (SRM) have been dramatically considered with both researchers and industries. SRMs not only have a simple and reliable structure, but also have low cost production process. However, discrete torque production of SRM along with intensive magnetic saturation in stator and rotor cores are the major drawbacks of utilizing in variety of industrial applications and also causes the inappropriate torque ripples. In this paper, a modified logical-rule-based Torque Sharing Function (TSF) method is proposed considering turn-on angle control. The optimized turn-on angle for conducting each phase is achieved by estimating the inductance curve in the vicinity of unaligned position and based on an analytical solution for each phase voltage equation. Simulation results on a four-phase switched reluctance motor and comparison with the conventional methods validates the effectiveness of the proposed method.

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