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  Subjects -> ELECTRONICS (Total: 207 journals)
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International Journal of Power Electronics
Journal Prestige (SJR): 0.233
Citation Impact (citeScore): 1
Number of Followers: 24  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1756-638X - ISSN (Online) 1756-6398
Published by Inderscience Publishers Homepage  [439 journals]
  • Versatile current controller suitable for two-level as well as three-level
           converters of shunt active power filters: part 2

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      Authors: Siddharthsingh K. Chauhan, P.N. Tekwani
      Pages: 399 - 428
      Abstract: The current controller of this paper's part 1 has sector change detection limitation for multi-level power filters because of complex voltage space phasor structure. Presented self-adaptive current error space phasor (CESP) based hysteresis controller (HC) does not require point of common coupling voltage vector calculation for identifying sector changes. Here one more hysteresis band is placed a little outside main hysteresis band used for voltage vector selection. Sector changes are detected from CESP movement and outer band comparator state. This versatile sector detection technique is applicable for two-level and three-level filter. Presented controller retains adjacent voltage vector switching. Inherent capacitor voltage imbalance is eliminated by three-level flying capacitor filter's switching redundancy. Controller performance is verified for two-level and three-level filter through simulation studies. The controller is implemented using DSP TMS320LF2407A for two-level filter. Adequate compensation provided by controller in steady state, during transients and for variation in hysteresis band is evident through presented results.
      Keywords: current error space phasor; flying capacitor type three-level converter; self-adaptive sector change detection technique; shunt active power filters; SAPFs; two hexagonal boundaries; versatile hysteresis current controller
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 399 - 428
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126602
      Issue No: Vol. 16, No. 4 (2022)
       
  • Smoothed Kalman MRAS observer for speed sensorless indirect vector
           controlled induction motor drives

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      Authors: Uma Syamkumar, B. Jayanand
      Pages: 429 - 450
      Abstract: This paper proposes a modified Kalman filter algorithm based on fixed lag smoothing which can be used to estimate the rotor speed and flux of three phase induction motor. The behaviour of a typical extended Kalman filter (EKF) algorithm is influenced by the process and measurement error covariance matrices. In EKF, these matrices are chosen by trial and error method and have to be varied according to the varying operating conditions of the motor. In this paper a smoothing-based extended Kalman filter (SKF) algorithm which uses additional data points for estimation is proposed. Since additional data is used, the algorithm is able to give a better estimate, with the same values of process and measurement error covariance matrices. The performance of the proposed algorithm is explored for sensorless indirect vector control application of three-phase induction motor. Finally, in order to validate the superiority of this algorithm, it is compared with the performance of EKF algorithm for various reference speeds in real-time.
      Keywords: sensorless control; smoothing; observer; extended Kalman filter; EKF; three-phase induction motor; smoothed Kalman Filter; SKF
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 429 - 450
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126604
      Issue No: Vol. 16, No. 4 (2022)
       
  • Exploration of bifurcation and inherent oscillation in a current mode
           controlled ─ćuk converter - effects of turn-on and turn-off switching
           delays

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      Authors: Sukanya Parui, Biswarup Basak
      Pages: 451 - 469
      Abstract: The nonlinear phenomena in a dc-dc current mode controlled Ćuk converter circuit have been explored. In reality, as any switching process is associated with turn-on and turn-off delays, the simulation has been extended considering these delays. The circuit exhibits a LC oscillation which may make the switch current oscillatory and in some cases the conclusion obtained from the bifurcation diagram regarding the dynamics of the system becomes incorrect. A mathematical expression for the oscillation frequency has been presented. A prototype of the converter has been developed. The simulated results have been verified experimentally.
      Keywords: Ćuk converter; bifurcation; chaos; inherent oscillation; nonlinear dynamics; quasi-periodic oscillation; turn-on delay; turn-off delay
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 451 - 469
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126609
      Issue No: Vol. 16, No. 4 (2022)
       
  • New approach of SOC estimation method for lithium-ion
           battery/ultra-capacity hybrid system based on multi-model strategy

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      Authors: Qiuting Wang, Wei Qi
      Pages: 470 - 482
      Abstract: A new state of charge (SOC) estimation method based on multi-model strategy (MMS) is proposed. For lithium-ion battery/ultra-capacity hybrid system, the model precision and the real-time performance will be satisfied at the same time. New modelling method for the battery energy storage system is presented. The main efforts of our works are, firstly, the hybrid system model is established based on multi-model strategy. Secondly, the model parameters are updated using extended Kalman filter (EKF) algorithm and the electric quantity of lithium-ion battery is estimated using unscented Kalman filter (UKF) algorithm. Lastly, the experiments were conducted under the dynamic working condition and the NEDC working condition. The results indicate that the SOC estimation accuracy based on MMS is better than that without the strategy.
      Keywords: lithium-ion battery; SOC estimation; multi-model strategy; joint Kalman filtering algorithm; New European Driving Cycle; NEDC
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 470 - 482
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126613
      Issue No: Vol. 16, No. 4 (2022)
       
  • SVM-based current ripple reduction with two parallel interleaved inverters
           for induction motor drive

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      Authors: Ranvir Kaur, Gursewak Singh Brar, Maninder Kaur
      Pages: 483 - 501
      Abstract: Extensive research has been ongoing in the field of inverter fed induction motor drives. The main challenge in designing pulse width modulation (PWM) fed induction motor drives is to reduce total harmonic distortion (THD) and ripple content in AC output of inverter. The PWM method ensures the voltage balancing between two parallel interleaved inverter (PII) inverters for each switching cycle. The PII includes two parallel units of two level three-phase PWM full bridge having multiple carrier waves with phase rotation analysed as single unit of three-level inverter. PII improves the performance of drive while employing space vector modulation (SVM) by reducing THD content by 14% for low modulation indices and improves up to 40% at high modulation indices. Ripple content is significantly reduced in line current for PII. Simulation and experimental results for PII for 5 hp induction motor are presented in this paper to validate low ripple current at output.
      Keywords: pulse width modulation; PWM; three-phase full bridge; space vector modulation; SVM; parallel inverters; ripple content; induction motor
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 483 - 501
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126610
      Issue No: Vol. 16, No. 4 (2022)
       
  • Advanced predictive flux control for B6 inverter fed induction motor
           drives

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      Authors: Wiem Zouari, Imen Nouira El Badsi, Bassem El Badsi
      Pages: 502 - 523
      Abstract: Predictive torque control (PTC) has already been introduced to cope with the problem of the torque and flux ripples of AC machines. However, the simultaneous control of torque and flux in conventional PTC scheme is not very trivial. Alternatively, the predictive flux control (PFC) has been suggested based on removing the weighting factor from the implementation scheme. This paper proposes the development of two new phase-clamping (PC) PFC schemes, founded on the basis of modulating two legs of the inverter fed induction motor (IM). In addition, this paper introduces the theory of duty-cycle optimisation into the three PFC schemes to optimise the amplitude of the optimal vector. The performances of the six PFC strategies are evaluated based on several simulation and then experimental tests. The performances of the IM drive under the proposed PC-PFC methods confirm the superiority in terms of average switching frequency, current harmonic distortion, and torque ripple.
      Keywords: predictive flux control; PFC; induction motor; phase-clamping; duty-cycle optimisation; switching frequency; harmonic distortion; flux and torque ripple
      Citation: International Journal of Power Electronics, Vol. 16, No. 4 (2022) pp. 502 - 523
      PubDate: 2022-10-31T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2022.126615
      Issue No: Vol. 16, No. 4 (2022)
       
 
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