Behavioral Modeling of a Switched Reluctance Generator for Aircraft Power Systems

Valdivia, V.; Todd, Rebecca; Bryan, F.; Barrado, A.; Lázaro, A.; Forsyth, A.J.

doi:10.1109/tie.2013.2276768

Cited by 110 publications

(46 citation statements)

References 34 publications

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“…3(a) and (b). As elaborated in [4], the transfer function of SRG can be obtained based on system identification techniques. However, since there is no need for the analytical form of the transfer function, the numerical method based on MATLAB/SIMULINK linear analysis toolbox [14] is preferred for obtaining the frequency response.…”

Section: B Aggregated Dynamic Modelmentioning

confidence: 99%

“…However, the interaction effect of the nonlinear dynamic characteristics of WECS and constant power loads on the stability of the output voltage has been ignored in this microgrid. The performance of SRG-based aircraft power systems in the presence of a constant power load was studied using a behavioral modeling in [4] but no solution was proposed for reducing the dc-link fluctuations. For the abovementioned control strategy, the uncertain SRG parameters were linearized and the stability of the output voltage was ignored.…”

Section: Introductionmentioning

confidence: 99%

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Passivity-Based Control of Switched Reluctance-Based Wind System Supplying Constant Power Load

Namazi

Nejad

Tabesh

et al. 2018

IEEE Trans. Ind. Electron.

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Abstract-This paper presents a passivity-based control (PBC) scheme for the Switched Reluctance Generator (SRG) in smallscale wind energy conversion systems (WECSs) for DC microgrid application. The main objective is to stabilize the output voltage in case the system supplies constant power loads (CPLs) and operates with maximum power point tracking (MPPT). Stability improvement and dc-link ripple reduction in the presence of CPLs is achieved using system level modeling of SRG-based DC microgrid through the Euler-Lagrange system (ELS) from the view point of the machine physical structure. Compared with other control methods, the proposed MPPT method based on passivity-based speed controller employs the back-EMF in the generation process as a position-dependent voltage source to overcome the major challenge of SRG complicated uncertain dynamic model. To deal with the time-varying inductance and back-emf of SRG, an adaptation mechanism is incorporated in proposed adaptive PBC and the control design is constructed by using the Lyapunov theorem where the closed-loop stability is ensured. The effectiveness of the proposed method in avoiding instability effects of SRG and CPL with voltage ripple reduction and precise wind turbine speed tracking is investigated with simulation results and validated with experimental by using a four-phase, 8/6 SRG drive system. Switched Reluctance Generator (SRG); Wind turbine; Passivity-based control; Constant-power load.

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Section: B Aggregated Dynamic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Passivity-Based Control of Switched Reluctance-Based Wind System Supplying Constant Power Load

Namazi

Nejad

Tabesh

et al. 2018

IEEE Trans. Ind. Electron.

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“…The machine is generating when the magnetic curve λ(θB, iF) that passes through point A is above the characteristic λ(θB, iF) that contains the final point B. Along path A-B, the swept and enclosed area between both curves represents the magnetic energy transformed into electrical power [1]. The generator mode means that the area is swept clockwise.…”

Section: Electrical Energymentioning

confidence: 99%

“…The switched reluctance motor (SRM) plays a key role in systems that require rugged electrical operating mechanisms [1][2][3][4][5]. To power this equipment, a Miller asymmetric bridge inverter is used [6].…”

Section: Introductionmentioning

confidence: 99%

Energy Transformations in a Self-Excited Switched Reluctance Generator

et al. 2016

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Abstract:Wind generation systems require mechanisms that allow optimal adaptation of the generator to varying wind speed and to extract maximum energy from the wind. Robust and affordable high-performance methods are also needed for isolated sites. This paper takes this approach, in which an AC switched reluctance generator is used as a generator with a variable rotor speed. Although the voltage obtained is of insufficient quality to connect the generator directly to the power grid, this kind of generator can be used in isolated sites to charge a battery bank with a simple bridge rectifier. Due to the nonlinear behavior of the machine with the position and current, along with the alternating nature of the current that circulates through its phases, the machine experiences cyclical energy transformations of a mechanical, electrical and magnetic nature. This paper analyzes these transformations for the purpose of providing guidelines for machine design and optimization as a wind turbine in isolated sites.

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“…As a result, they are widely used in industrial and domestic applications [1]- [4]. SRMs have been successfully applied to integrated starter/generator (ISG) systems [5]- [7], flywheel energy storage systems [8], wind power generation systems [9], [10] and aircraft power supply systems [11]. Based on various applications, different control strategies for SRM drive systems have been employed [12]- [15].…”

Section: Introductionmentioning

confidence: 99%

Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles

Cheng¹,

Chen²,

Zhou³

et al. 2015

Journal of Power Electronics

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In order to promote the application of switched reluctance machines (SRM) in electric vehicles (EVs), the braking torque closed-loop control of a SRM is proposed. A hysteresis current regulator with the soft chopping mode is employed to reduce the switching frequency and switching loss. A torque estimator is designed to estimate the braking torque online and to achieve braking torque feedback. A feed-forward plus saturation compensation torque regulator is designed to decrease the dynamic response time and to improve the steady-state accuracy of the braking torque. The turn-on and turn-off angles are optimized by a genetic algorithm (GA) to reduce the braking torque ripple and to improve the braking energy feedback efficiency. Finally, a simulation model and an experimental platform are built. The simulation and experimental results demonstrate the correctness of the proposed control strategy.

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Behavioral Modeling of a Switched Reluctance Generator for Aircraft Power Systems

Cited by 110 publications

References 34 publications

Passivity-Based Control of Switched Reluctance-Based Wind System Supplying Constant Power Load

Passivity-Based Control of Switched Reluctance-Based Wind System Supplying Constant Power Load

Energy Transformations in a Self-Excited Switched Reluctance Generator

Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles

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