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 | IET Power Electronics Volume 17, Issue 6 Pages: 675-788 6 May 2024 |
ORIGINAL RESEARCH
Open AccessOutput quality improvement for single‐phase inverter in V2G system
Pages: 675-689 | First Published: 09 April 2024
A compensation amount is proposed to introduce in the modulation signals, the value of which is half of the delay register that generates a dead-time of td. Moreover, considering the phase delay caused by filtering in sampling, the grid-tie mode control strategy based on dead-time compensation is further proposed, which introduces the grid voltage as a feedforward signal.
Open AccessReal‐time monitoring and ageing detection algorithm design with application on SiC‐based automotive power drive system
Pages: 690-710 | First Published: 15 March 2024
Electro-thermal real-time modeling of an electric drive for new generation electric vehicles. The real-time model is validated against experimental measurements obtained during a WLTP cycle. Real-time modeling makes it possible to develop and validate with a PIL approach an algorithm for monitoring the aging effects of the active components of the electric drive inverter. The monitoring algorithm integrated on the dedicated embedded system is based on an artificial neural network capable of estimating the Ron of the active components of the inverter.
Open AccessDirect single‐phase isolated improved gamma Z‐source AC–AC converter suitable for DVR application
Pages: 711-720 | First Published: 11 March 2024
A Direct Single-Phase Isolated Improved Gamma Z-Source AC–AC Converter is designed. This converter contains an impedance-source structure and its advantages. The high frequency transformer of the proposed converter is a three-winding transformer which acts as the inductance needed for impedance source network. In addition, the safe commutation method has been utilized, which reduces the voltage spikes on the power switches.
Open AccessA novel algorithm for open switch fault detection and fault tolerant control of interleaved DC‐DC boost converters
Pages: 721-730 | First Published: 12 April 2024
Here, a novel and simple approach for fault detection of double simultaneous open switch fault in interleaved boost converters has been reported. The proposed strategy extracts some effective features from an appropriate designed signal to diagnose the faulty power MOSFETs. Finally, experimental results show the satisfactory performance of the suggested method.
Open AccessFault‐tolerant control of current residual vector three‐phase four‐switch motor drive system based on MLD model
Pages: 731-751 | First Published: 04 April 2024
Based on the MLD(mixed logic dynamic) model and vector control of PMSM（permanent magnet synchronous motor） speed control system, an improved vector control strategy is proposed. At the same time, the fault diagnosis method based on the current residual vector is combined with the three-phase four-switch fault-tolerant topology to improve the reliability of the system.
Open AccessGrid voltage sensorless control of a single‐phase shunt hybrid active power filter
Pages: 752-763 | First Published: 01 April 2024
This paper proposes a grid voltage sensorless control system for an LCL-filtered LC-tuned single-phase shunt hybrid active power filter (HAPF), which offers high-quality harmonic current compensation.
Open AccessOptimal voltage angle for maximum torque per voltage control of induction machine in deep field‐weakening region
Pages: 764-773 | First Published: 04 April 2024
This paper explores the optimization of the stator voltage angle in a rotor flux-oriented system for induction machine traction drives, with the primary objective of maximizing torque in the deep field-weakening region. Unlike previous research that often assumed a constant synchronous speed, this work accounts for variations in dq current components, which impact slip speed and, consequently, synchronous speed. A closed-form algebraic equation for the speed and parameter-dependent optimal voltage angle is derived after linearization around a suitable operating point when neglecting stator resistance.
Open AccessAnalysis, design, and reliability evaluation of a modified multi‐port quasi‐resonant converter with high gain
Pages: 774-788 | First Published: 01 April 2024
To overcome the limitations such as low voltage gain and low efficiency associated with the conventional converters, this study proposes a non-isolated configuration of multiport quasi-resonant converter (MP-QRC) with high gain.
The proposed MP-QRC has the merits of high-voltage gain, reduced number of components, minimum conduction losses, realization of soft switching in the devices and improved reliability.
Moreover, the proposed converter is scalable and can serve as a good candidate in microgrid environment where the integration of more than one input is essential.
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