The term ‘smart grid‘, is nowadays very often used in many publications and so far has not been explicitly defined, however it refers mainly to such an operation of electricity delivery process that allows to optimize energy efficiency by flexible interconnection of central and distributed generators through transmission and distribution system to industrial and consumer end-users [1], [3], [11...

DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users’ viewpoint, this paper presents a review on the improvement of reliability of DC-link in power electronic converters from two aspects: 1) reliability-oriented DC-link design solutions; 2) conditioning monitoring of ...

Most of the distributed energy resources, loads and energy storage systems in a DC microgrid are equipped with power electronic converters. With the integration of advanced power electronics devices, a microgrid is able to utilize a broader range of technologies in its design and operation. A key feature of power electronic converter based systems is the ability to direct energy flow within a s...

Stability analysis of a baseline power system architecture for modern aircraft is addressed. Power electronic converters are widely used in modern aircraft power distribution systems. Due to their inherent nonlinear characteristics, instabilities may arise while integrating individual subsystems together. Bifurcation analysis is used to identify the type, multiplicity and stability of system tr...

DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users’ viewpoint, this paper presents a review on the improvement of reliability of dc link in power electronic converters from two aspects: 1) reliability-oriented dc-link design solutions; 2) conditioning monitoring of ...

Low power design has become popular nowadays because ofdevelopment of improveddata converters with high resolution in CMOS process. Electronic device manufacturersare competing each other to produce devices that can extend battery life, have inexpensive packaging and cooling systems as well as reduce the size.The objective of this paper is to review various low power designs in digital to analo...

Power electronic converters are non-linear time-dependent systems whose exact analysis without the use of computers is very difficult, and even using computer softwares requires a long time. Use of the state space averaging method, as will be mentioned, in addition to simplifying the analysis procedure which is a result of converting a time-dependent system to a time-independent one, reduces th...

A review of some approaches currently used to integrate power electronic functions is presented. In the field of power electronic, semiconductor devices are used in energy control and conversion circuits. The power function (switching or protection) is achieved through use of data and signal processing circuits separated from the discrete power device. The evolution naturally involves the integ...

Combining modern high-power semiconductor devices with constantly improving magnetic materials opens up the possibility to replace bulky low-frequency transformers with a new medium voltage medium frequency conversion structure. While there are still challenges to be addressed related to these so called power electronic transformers, a steadily increasing development effort is evident and consi...

AbstrucGIn this paper an algorithm for piecewise-linear network state-determination is presented. The algorithm is capable of solving networks that contain piecewise-linear elements with discontinuous characteristics, frequently encountered in power electronics. No prior knowledge about the network operation is required. The algorithm has been implemented in a time-domain simulator for power el...