نتایج جستجو برای: dc generator motor
تعداد نتایج: 252076 فیلتر نتایج به سال:
In this article, we have shown the possibility of improving quality energy injected into electrical network and flexibility its exchange between different components proposed hybrid (photovoltaic generator connected to network-storage battery-load DC motor) develop a control element based on combination fuzzy logic an algorithm derived from PSO Animal Behavior. The works DC/AC bi-directional DC...
This paper investigates how to increase the efficiency of a photovoltaic/energy storage generation unit supplying dynamic loads by regulating and managing both the photovoltaic generator and the storage battery charge-discharge modes. The proposed photovoltaic/energy storage unit is proposed to supply an induction motor driven industrial pump with controlled speed and/or a DC motor driven water...
In this paper we propose the study of a centrifugal pump control system driven by a three-phase induction motor, which is supplied by a PhotoVoltaic PV generator. The system includes solar panel, a DC / DC converter equipped with its MPPT control, a voltage inverter to three-phase Pulse Width Modulation PWM and a centrifugal pump driven by a three phase induction motor. In order to control the ...
Renewable energy sources like wind, sun, and hydro are considered as a reliable alternative to the traditional energy sources such as oil, natural gas, or coal. This paper describes modeling and simulations to determine a method for the power performance evaluation of autonomous wind turbine system. A speed control regulator is utilized to control the DC bus voltage. The inverter gate’s signals...
<p>This paper focuses on a photovoltaic system for pumping water. The control strategy this water is based Takagi-Sugeno type fuzzy supervisors and sliding mode controller. first generates the maximum power point current under varying climatic condition whereas second allows tracking reference signal produced by supervisor. includes generator (PVG) followed DC-DC Converter, DC bus, an AC/...
in this article our objective is to obtain steady state characteristics of shunt, series, and separately excited dc motors coupled with a centrifugal water pump supplied through a step-up, step-down, and cuk converter from photovoltaic generator. we assume that there are no storage batteries and, of course, the system must operate on maximum utilization i.e. maximum water must be pumped. it is ...
For low power wind energy or micro-hydel applications of the order of 1-10KW, the lowest cost can be achieved if the generator is a simple squirrel cage induction motor used as a self excited induction generator (SEIG). The induction generator output can be rectified to produce a DC Bus from which a single phase inverter can feed the power supply grid. A SEIG requires capacitors to be connected...
This paper presents an adaptive neural network controller (ANNC) that is used to control the speed of a separately excited dc motor deriving a centrifugal pump load and fed from photovoltaic (PV) generator through dc-dc buckboost converter. The controller is also used to track the maximum power point (MPP) of the PV generator by controlling the converter duty ratio. Such kind of controllers mus...
In this paper, we present and demonstrate a rotational energy harvesting generator and a method to improve its power density at low operational speeds. The electro-mechanical behavior of the generator is described using direct current (DC) motor theory. Reported results from a previously designed and tested maximum power point tracking (MPPT) circuit are discussed. The effects of imposing a cur...
In recent years, microturbines as one the distributed generation sources have widly used. This paper investigates the control structure of the microturbine and analyzes its performance in grid-connected mode. In this way, first, the mechanical model of the microturbine is presented. Then, the electrical structure of the microturbine, consisting of permanent magnet synchronous generator (PMSG) ...
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