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This paper presents a modeling approach for analysis of Torque, Current and Voltage characteristics. Distributed Generation systems are becoming more popular everyday due to its greater efficiency and eco-friendly behavior. Another advantage of DG System is that it can operate independently or can be connected to a Grid system. In this paper a microturbine based DG System is created using MATLAB and...
In this paper the analysis of Doubly Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS) is carried out and simultaneously the behavior of DFIG based WECS under normal and abnormal condition is discussed. At rotor side during abnormal condition it is observed that the dc link voltage and rotor speed of DFIG wind turbine increases, whereas the terminal voltage and the active power...
The study of a Wind Farm (WF) based on Permanent Magnet Synchronous Generator (PMSG) and interconnected to the electric network is presented. The 8 MW wind farm consists of 4 PMSGs based 2 MW generators connected to a common DC bus. Each generator is connected to the DC-bus with a rectifier while the DC-bus is connected to the grid through one DC/AC converter. The proposed control law combines Sliding...
Multilevel converters are widely recognized as a suitable solution for directly interfacing different types of power sources and energy storage systems to the medium voltage grids, due to their ability in high-voltage and high-power applications. The DC-voltage regulation of a five-level neutral-point clamped (NPC) in closed loop is presented. It consists to regulate the average value of the DC-voltage...
In this paper architecture of a hybrid system is proposed which is based on solar photo-voltaic and wind energy systems. Depending upon availability and requirement these renewable energy sources deliver the load together or independently. The proposed architecture consists of solar PV and wind energy system. In solar PV system MPPT technique is applied to maximize power output, a boost converter...
This manuscript presents simulation for power generation related to variable wind speed using Matlab. A mathematical equation of the wind power system also proved. The power generation is done by using permanent magnet synchronous generator. The system is directly connected to the permanent magnet synchronous generator with gearbox as intermediate in between them. Also the system is at variable wind...
A method of object-oriented hydropower station dynamic graphical simulation software development is presented in this paper, using Visual Graph integrated environment to achieve the power of graphical modeling components, including generators, excitation devices, turbines, governors, loads and grid structure chart modeling. It designs unified interface between generators and girds. According to compare...
The selection of the best turbine for a particular hydro site depends on the site characteristics and on the power required. For the particular values of the flow and head, the turbine tends to run most efficient at a particular speed. Often, the generator needs to be rotated at a speed greater than the turbine optimum speed. Therefore, a speed increaser is needed in many cases to link the turbine...
Distributed generation draws increasing attention because of the energy shortage and environmental protection considerations. Furthermore, distribution power generation can improve the power system stability and reliability, providing the local power supply economically. Microturbine based power generation has many applications in distributed generation. In this paper, a mathematical model of a microturbine...
This paper proposes a simple method of evaluating the steady state characteristics of a stand-alone induction generator driven by a small hydro-turbine. The steady state operation of the generator is first described by a set of nonlinear equations using the conventional loop impedance approach. The torque-speed characteristic of the hydro-turbine is then carefully incorporated into the generator equations...
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