The paper investigates the small-signal stability of a 270V DC power system for a more electric aircraft, which employs switched reluctance generator technology and multiple distributed power electronic converters for flight control surface actuation, environmental control, and numerous DC and AC loads. Non-linear state space models for the complete system have been established and the eigenval...

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This article describes the synthesis of a sliding mode controller SMCr based on a second order linear model using an integral-differential surface of the tracking-error. Different from similar strategies, the tuning parameters keep a close relationship with the system dynamics in terms of conventional specifications of transient response. The proposed controller only needs the output feedback o...

Modeling and simulating the converter using the modelling equations is necessary to design of power electronic converter circuit with the use of closed loop scheme. This can easily be done with the help of state equations and MATLAB/SIMULINK as a tool for simulation of those state equations. An attempt has been made in this paper to simulate all basic non-isolated power converters. So that thes...

Electrolytic capacitors are extensively used in filtering and power decoupling in power electronic converters. Low cost and high energy density of these capacitors make them popular. However, these capacitors degrade with age due to heating and evaporation of electrolyte. This process may take about 2 to 7 years depending on the application, ambient conditions and capacitor construction. This p...

The achievement of technologically efficient solutions for energy generation, distribution and usage represents a crucial need of modern society, both for environmental and economic reasons. An important role in tackling future energy challenges is played on one hand by the replacement of the electrical energy production from conventional fossil based (coal, natural gas, and oil) sources to ren...

The circuit presented in this paper aims at providing three 40 Vpp 50Hz AC voltages sources with 120o phase separation between them. This is a fully analogue circuit that uses standard, low-cost electronic components without resorting to a microcontroller as previously proposed by Shirvasar et al [1]. This circuit may serve as a basis for a low-voltage 3P-AC power supply that students may safel...

Submitted: Jan 5, 2014; Accepted: Feb 24, 2014; Published: Mar 12, 2014 Abstract: In on-board electronic circuits the use of DC-DC converters is very common for translation and stability of DC levels. These converters are used primarily to step-up or step-down DC levels, they are also employed for steady DC voltage output generated from ambient energy sources such as solar and wind power. In su...

Ac–ac power conversion, the most popular topologies are indirect ac–ac converters with a dc link matrix converters and direct pulse width modulation (PWM) ac–ac converters. The indirect ac–ac converters and matrix converters can provide variable output voltage and variable frequency. However, for applications, where only voltage regulation is needed, the direct PWM ac–ac converters are used to ...