An on-going extensive research on multi-level and matrix converters requires physically meaningful easy-to-calculate criteria to compare numerous suggested converter topologies and voltage modulation strategies. Frequency domain voltage Total Harmonic Distortion (THD) criterion approach is too complicated and non-transparent as it involves multiple Fourier integral and results in multiple serie...

This thesis presents a resonant boost topology suitable for very high frequency (VHF, 30300 MHz) dc-dc power conversion. The proposed design is a fixed frequency, fixed duty ratio resonant converter featuring low device stress, high efficiency over a wide load range, and excellent transient performance. A 110 MHz, 23 W experimental converter has been built and evaluated. The input voltage range...

An electric vehicle (EV), otherwise called as an electric drive vehicle uses one or more electric motors or traction motors to create the driving force needed for motion. Considering the power supply for vehicle computer and electronics, battery and DC-DC converter is required. To achieve the required voltage levels, power converters and inductances are required. Resonant converters are popular...

This research deals with investigations on the “Active Generator” under rotor speed variations and output frequency control. It runs at turbine speed and it is connected to a three phase electrical power grid which has its own frequency different from turbine frequency. In this regard the set composed of a four phase synchronous generator and a natural commutated matrix converter (NCMC) made wi...

The control strategy and design of an AC/DC/AC IGBT-PMW power converter for PMSG-based variable-speed wind energy conversion systems (VSWECS) operation in grid/load-connected mode are presented. VSWECS consists of a PMSG connected to a AC-DC IGBT-based PWM rectifier and a DC/AC IGBT-based PWM inverter with LCL filter. In VSWECS, AC/DC/AC power converter is employed to convert the variable frequ...

Frequency-modulated operation of MEMS gyroscopes promises numerous benefits, including inherently accurate scale factor, improved bias stability, high dynamic range, and low power dissipation. An FM demodulator based on sigmadelta frequency-to-digital conversion decouples dynamic range from power dissipation to achieve a resolution of 41.1μHz in a 50Hz bandwidth for a 30 kHz signal (2.1mdeg/s/ ...

Background and Objectives: Power electronics infrastructures play an important role in charging different types of electric vehicles (EVs) especially Plug-in Hybrid EVs (PHEVs). Designing appropriate power converters is the topic of various studies. Method: In this paper, a novel bidirectional buck-boost multifunctional integrated converter is presented which is capable of handling battery and ...

Variation of frequency and voltage by load changes in a microgrid is a challenge in droop control method. Centralized restoration frequency or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. This paper proposes a decentralized method that restores the frequency of a microgr...

Was concentrated on tree phase matrix converter topology. Single-phase Matrix converter or SPMC was first implemented by Zuckerbeger4. Now presented a.Abstract. This paper presents the single phase matrix converter topology that will operate as an uninterruptible power supply circuit. A single circuit is developed.Single phase matrix converter SPMC performs a function such as frequency changer,...