Continuous Rotor Position Estimation for SRM Based on Transformed Unsaturated Inductance Characteristic

Ge, Lefei; Zhong, Jixi; Bao, Chong; Song, Shoujun; Doncker, Rik W. De

doi:10.1109/tpel.2021.3096738

Cited by 49 publications

(3 citation statements)

References 20 publications

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“…According to Kirchhoff's law, the voltage balance equation of the KTH phase is Equation (1). The U k is k-phase winding voltage, R k is k-phase winding resistance, i k is k-phase winding current, and k  is kphase winding flux [9].…”

Section: Mathematical Model Of Srmmentioning

confidence: 99%

Variable Flux Direct Torque Control System of Switched Reluctance Motor

Wu,

Shen,

2023

J. Phys.: Conf. Ser.

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Direct Torque Control (DTC) strategy is very suitable for controlling Switched Reluctance Motors (SRM) due to its advantages of the simple control structure and fast system response, etc. This paper first analyzes the principle of DTC and establishes the DTC model of three-phase 6/4 SRM by Matlab/Simulink. In this paper, a three-closed-loop variable flux DTC system with velocity as the given quantity is constructed to solve the problem that the stator current of constant flux DTC is too large when the motor is in a steady state. The simulation results show that the variable flux DTC system has a better inhibition effect on the stator current and torque ripple of SRM than the conventional DTC system.

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Section: Mathematical Model Of Srmmentioning

confidence: 99%

Variable Flux Direct Torque Control System of Switched Reluctance Motor

Wu,

Shen,

2023

J. Phys.: Conf. Ser.

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“…With the development of switched reluctance motor (SRM) technology for vehicles, such as optimization of electromagnetic performance [10]- [15], vibration and noise reduction [16]- [21], and torque ripple optimization [22]- [28], SRM has shown great application value in electric construction machinery. However, due to the highly nonlinear torque characteristic and special control method of SRM, the solely motor-based parking control of electric construction machinery driven by SRM is a tricky problem, which still lacks in-depth research, and few related reports can be found at the moment.…”

Section: Introductionmentioning

confidence: 99%

Optimized Parking Control for Electric Vehicle Driven by Switched Reluctance Motor

Liu,

Wang,

Chai

et al. 2023

IEEE Access

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Sufficient and stable positioning torque is necessary for the parking of an electric vehicle driven by switched reluctance motor (SRM). Considering the highly nonlinear torque characteristic of SRM, the parking control with high stability and power consumption economy is an important issue. This paper presents an optimized parking control method for an electric vehicle driven by SRM to achieve optimal parking stability and power consumption economy simultaneously. The static torque-angle characteristic curve of a four-phase 16/12 SRM is analyzed, based on which the optimized region of parking position (presented by rotor angle) is obtained considering the uncertainty of parking conditions. To ensure the vehicle is properly parked in the optimized position region, active disturbance rejection control (ADRC) is utilized to achieve the smooth switch from zero-speed control to parking position control. Simulation and experimental results verify that the proposed method can better stabilize the parking on the ramp and reduce power consumption in all conditions.INDEX TERMS Switched reluctance motor (SRM), optimized parking method, active disturbance rejection control (ADRC), parking power consumption.

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“…1,2 However, sensors are usually expensive components, such as LEMs whose prices are ranging from dozens to thousands of dollars, and the use of sensors brings some drawbacks to systems, such as lower reliability and worse noise immunity. [3][4][5][6][7][8] Therefore, there are many literatures focusing on how to reduce the number of sensors in the system.…”

Section: Introductionmentioning

confidence: 99%

Current estimation of switched reluctance motor based on piecewise model and iteration calculation

Fang

Chen

Wang

et al. 2022

Circuit Theory & Apps

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To reduce the number of current sensors in the switched reluctance motor (SRM) system, a current estimation method of the SRM is proposed. There is only one current sensor needed to measure the sum of phase currents. Current estimation model consists of two equations, one is equation of the sum of phase currents and another is mechanical equation of the SRM. Torque, a variable in the mechanical equation, has complex nonlinear relation with phase currents. This makes it difficult to solve the current estimation model online.To deal with the problem, a piecewise modeling method is used to establish a simple analytical torque model. Accuracy of the established torque model is better than that of traditional torque models after comparisons. A parameter of speed and acceleration is defined to compensate errors of the torque model and avoid identifications of moment of inertia and friction coefficient. On the basis of features of the current estimation model and phase currents of the SRM, Newton's method is chosen to solve the current estimation model and a practical stop condition of iteration is given. Realization process of online computation is illustrated. Finally, the proposed current estimation method is validated by experiments.

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Continuous Rotor Position Estimation for SRM Based on Transformed Unsaturated Inductance Characteristic

Cited by 49 publications

References 20 publications

Variable Flux Direct Torque Control System of Switched Reluctance Motor

Variable Flux Direct Torque Control System of Switched Reluctance Motor

Optimized Parking Control for Electric Vehicle Driven by Switched Reluctance Motor

Current estimation of switched reluctance motor based on piecewise model and iteration calculation

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