Lightning protection for power supply of electronic equipment is an important problem of low-voltage lightning protection systems. In this paper, lightning characteristics of electronic equipment’s power supply are studied. Firstly impulse generator is developed. Then lightning characteristics tests for different powersupply, such as switch model power supply, are done. Test results show: diffe...

The article discusses application of AC/DC/AC converter cooperating with an induction generator in small hydroelectric power plants. The induction generator works with power grid or a separated group of receivers, enabling to generate power even at low speeds of the turbine. The article provides also results of the investigation concerning the functioning of the generator coupled with AC/DC/AC ...

Abstract: A permanent magnet (PM) synchronous generator system driven by wind turbine (WT), connected with smart grid via AC-DC converter and DC-AC converter, are controlled by the novel recurrent Chebyshev neural network (NN) and amended particle swarm optimization (PSO) to regulate output power and output voltage in two power converters in this study. Because a PM synchronous generator system...

<p><span>Direct-current (DC) motor is a commonly used motor; its speed directly affected by applying mechanical load. This paper proposes the design of wide speed-load range controller for direct-current shunt based on proportional–integral–derivative (PID controller) with genetic system parameters adjusting. The PID simulated using Matlab software package and tested different sudde...

Solar energy is one of the most widely used renewable sources in the world. This explains the interest shown by researchers on the improvement of the quality and performances of this renewable source. The availability of low-cost solar cells increases the interest and needs in photovoltaic (PV) system applications following standard of living improvements. Nowadays, water pumping systems powere...

This paper deals with a comprehensive survey on the topic of AC/DC & DC/DC converters for DC Motor Drives. A substantial number of different AC/DC and DC/DC topologies appropriate for DC motor drives are presented. This critical literature review brings out merits, demerits, and limitations besides giving the basic operating principles of various topologies. Keywords—controlled-rectifiers, chop...

This paper presents the influence of the solar radiation and ambient temperature variation on the performance of a stand alone photovoltaic pumping system which composed of a PV generator, DC-DC adaptor, DC-AC inverter and an immersed group motor-pump. Those performances such PV efficiency, inverter efficiency and flow rate are improved by a judicious control implanted on the converters. The ma...