This paper presents a novel control strategy for the operation of direct-drive permanent-magnet synchronous-generator-based stand-alone variable-speed wind turbine. The generator-side converter with maximum power extraction is presented. featured output voltage and frequency controller that capable handling variable load. potential excess dissipated in dump-load resistor chopper control, dc-link maintained. Dynamic representation dc bus small-signal analysis are Simulation results show...

This paper describes very short-term wind prediction for power generation, utilizing a case study from Tasmania, Australia. Windpower presently is the fastest growing generation sector in world. However, windpower intermittent. To be able to trade efficiently, make best use of transmission line capability, and address concerns with system frequency re-regulated system, accurate forecasts are essential. The research introduces novel approach-the application an adaptive neuro-fuzzy inference...

In restructured power systems, there are many independent players who benefit from demand response (DR). These include the transmission system operator (TSO), distributors, retailers, and aggregators. This paper proposes a new concept-demand eXchange (DRX)-in which DR is treated as public good to be exchanged between buyers sellers. Buyers need improve reliability of their own electricity-dependent businesses systems. Sellers have capacity significantly modify electricity on request....

Appropriate size and location of distributed generation (DG) play a significant role in minimizing power losses distribution systems. This paper represents techniques to minimize feeder by optimizing DG model terms size, operating point DG. Sensitivity analysis for has been performed. The proposed sensitivity indices can indicate the changes with respect current injection. have developed considering load characteristics representing loads constant impedance models, separately. optimal be...

This paper proposes a novel operation and control strategy for renewable hybrid power system standalone operation. The proposed consists of wind turbine, fuel cell, an electrolyzer, battery storage unit, set loads. overall is based on two-level structure. top level the energy management regulation system. Depending load conditions, this generates reference dynamic operating points to low individual subsystems. also controls scheduling during unfavorable conditions under inadequate in order...

Integration of wind power generation (WPG) is increasing rapidly worldwide. The variability and uncertainty energy may lead to significant load-generation imbalances resulting in large frequency deviations, hence system operational risks, especially small isolated systems with low inertia limited capabilities providing responses. This raises the need for investigating alternatives current operation planning approaches cope uncertain nature intermittent generation. paper presents a risk...

Integration of small-scale electricity generators, known as distributed generation (DG), into the distribution networks has become increasingly popular at present. This tendency together with falling price synchronous-type generator potential to give DG a better chance participating in voltage regulation process other devices already available system. The control issue turns out be very challenging problem for engineers since existing coordination schemes would need reconsidered take account...

Longitudinal fins have been proven to be one of the most economical and easiest means improve thermal characteristics latent heat energy storage systems. Currently, studies on this topic are numerical, several research questions regarding effects angular position, fin height, perforation remain unanswered. In paper, we conducted experimental four solid finned tubes varying heights (10, 20, 25, 30 mm), three perforated with different hole sizes (4, 8, 12 mm). We also examined positions (0°,...

A novel control strategy for the operation of a permanent magnet synchronous generator (PMSG) based stand alone variable speed wind turbine is presented in this paper. The direct drive PMSG connected to load through switch mode rectifier and vector controlled pulse width modulated (PWM) IGBT-inverter. side achieve maximum power from wind. PWM inverter using relatively complex scheme amplitude frequency output voltage. As there no grid stand-alone system, voltage has be terms frequency....

This panel paper summarizes the current trends in wind power development and describes a proposed approach for short term forecasting using hybrid intelligent system.

This paper presents a novel control strategy for the operation of direct drive permanent magnet synchronous generator (PMSG) based stand alone variable speed wind turbine. The side converter with maximum power extraction is discussed. featured output voltage and frequency controller capable handling load. potential excess dissipated in damp resistor chopper dc link maintained. Dynamic representation bus small signal analysis are presented. Simulation results show that controllers can extract...

This paper presents the design and evaluation of an effective market-clearing scheme for trading demand response (DR) in a deregulated power system. The proposed is called exchange (DRX), which DR treated as public good to be exchanged between two groups participating agents, namely buyers sellers. While require are willing pay it, sellers have capacity curtail customer loads supply on request. DRX market clearing uses Walrasian auctions, where agents update their quantity bids prices...

A simple conventional dc chopper is employed to protect the doubly-fed induction generator (DFIG) from overvoltage; however, it not capable keep transient overcurrent in an acceptable level stator and rotor sides. Therefore, effective current-limiting strategy should be incorporated with improve fault ride-through capability of DFIG. In this paper, a modified DC proposed only dc-link voltage range, but also limit high-current sides permissible without incorporating any extra...

In the revolution of green energy development, microgrids with renewable sources such as solar, wind and fuel cells are becoming a popular effective way controlling managing these sources. On other hand, owing to intermittency wide range dynamic responses sources, battery energy-storage systems have become an integral feature microgrids. Intelligent management sizing essential requirements in ensure optimal use reduce conventional utilization complex systems. This paper presents novel...