This paper proposed a modified algorithm for controlling single-phase split-source inverter. The is model predictive control based on Harris Hawks optimization, where the AC output voltage, DC-link and DC input current are controlled within one cost function. Hence, discrete time models of both AC-side DC-side obtained. For proper operation MPC, each error term function has weighting factor. op...

This paper provides an efficient control technique for the operation of a direct-drive synchronous generatorbased stand-alone variable-speed wind energy conversion system. The control strategy for the generator-side converter with maximum power extraction is presented. This control provides a constant output voltage and frequency which capable of delivering to variable loads. The main attention...

In order to research the influence of the contamination around the external insulating surface of DC voltage divider with different types in the electic field distribution by using the finite element method, a two dimensional axisymmetric model of the DC voltage divider in Longquan convertor station is built. Through the calculation comparison in electrostatic and quasi-electrostatic field, the...

An asymmetrical pulse width modulated (APWM) dc-dc converters operating at constant frequency was simulated using Pspice software package. This converter incorporates constant frequency operation in a basic soft switching half bridge topology without any additional component and complexity. In this paper operation of converter configuration with capacitive filter in the output is discussed. A 5...

This paper presents a customized wireless power management microsystem for endoscopic capsule robot. The microsystem is composed of a rectifier, a regulator, a battery charger and A low Dropout (LDO) regulator. The electromagnetic energy signal received from a self-resonant coil is rectified and then regulated to generate a stable DC voltage for charging the Li-ion battery. Stable DC voltage is...

In this paper a hybrid active DC line conditioner for fluctuations and ripples reduction in voltage and current of DC power systems is proposed. Malfunctions in operation of equipments and systems which are supplied by low quality distribution power systems are one of the main effects of DC voltage ripple. In the proposed configuration a hybrid system including series and shunt active line ...

Received Feb 4, 2017 Revised Apr 4, 2017 Accepted Apr 18, 2017 DC-DC buck converters are used for battery chargers in many applications including renewable energy sources, inverters, electric vehicles and robots. In this paper a buck converter was built and its controller was developed using peak current control mode for current loop and phase lag for voltage loop. This paper proposes a formula...

Constant-current (CC) power supplies find applications in many fields. The Resonant immittance converters (RICs) convert a voltage source to the current source, thereby render them suitable for its application as a CC power supply. A fourthorder RIC topology, TT44 , is studied in this paper. Detailed steadystate analysis is presented. Procedure to perform converter optimization that leads to cl...

In this letter, we study the impact of low-pass resistor-capacitor (RC) filter on radio frequency (RF) wireless power transfer (WPT). The RC influences both RF bandwidth by removing harmonics as well ripple voltage at output rectifier. particular, a large (small) time constant, reduces (increases) but decreases (enhances) direct-current (DC) component. By following Fourier series approach, obta...

in this paper, a new cascaded multilevel inverter by capability of increasing the number of output voltage levels with reduced number of power switches is proposed. the proposed topology consists of series connection of a number of proposed basic multilevel units. in order to generate all voltage levels at the output, five different algorithms are proposed to determine the magnitude of dc volta...