The deregulation of electricity markets has a very large impact on almost all the power systems around the world. Competitive markets are complex systems with many participants who buy and sell electricity. Much of the complexity arises from the limitations of the underlying transmission systems and the fact that supply and demand must be in balance at all times. Generally the Locational margin...

In this work, the loss (including wire and converter loss) of island three-phase AC microgrid is modeled as a quadratic function current distribution coefficient, that is, concave with equality inequality constraints. On basis optimization principle, optimal coefficient distributed energy unit (DEU) calculated online by double ascent method (DAOM) to minimize loss. It proven multi-variables can...

this paper presents an innovative active power filter design method to simultaneously compensate the current harmonics and reactive power of a nonlinear load. the power filter integrates a passive power filter which is a rl low-pass filter placed in series with the load, and an active power filter which comprises an rl in series with an igbt based voltage source converter. the filter is assumed...

Wireless ad-hoc network contains many wireless nodes. Each node may have a low battery power. When energy of any node is exhausted, the failed nodes cannot relay the data to other nodes during transmission processing. It will cause wireless network leaks. Thus, the other nodes will be burdened with increased transmission processing. It is important to optimization research of replacement of nod...

This paper presents a phase-shift control method of triple-active-bridge converter for distributed power supply systems with multiple batteries. The experimental results show that the reactive through transformer can be suppressed under wide range conditions. proposed improves light load loss at 500W by approximately 30% compared to conventional method. In addition, according power-transmission...

This paper focuses on improving the active and reactive power control of Wind Energy Conversion System (WECS) by employing the Battery Energy Storage System (BESS) and controlling the frequency and voltage regulation instantaneously. The proposed power control scheme is composed of two control loops so that they are implemented and designed for active power control and controlling the reactive ...

Abstract: Active Power Filter (APF) is capable of changing the size and frequency of harmonics as well as changes in reactive power compensation. It is important to control the stability of the DC-link capacitor voltage stability for it. For DC voltage controls of APF, there are two important achievements. First, it is indicated that the control of DC voltage directly affects the compensation p...

The design and analysis of a compact flyback AC to DC power supply is described and simulation results are presented. Of particular interest is merging two interleaved power converters such that the main switch in one converter behaves as the clamp switch of the other while ripple cancellation is accomplished. Also, PFC and ZVZCS are achieved with no extra components. Using these approaches, th...

Power gating technique reduces leakage power in the circuit. However, power gating leads to large voltage fluctuation on the power rail during power gating mode to active mode due to the package inductance in the Printed Circuit Board. This voltage fluctuation may cause unwanted transitions in neighboring circuits. In this work, a power gating architecture is developed for minimizing power in a...