Load frequency control of isolated wind diesel hybrid power systems

Bhatti, T. S.; Al-Ademi, A.A.F.; Bansal, N.K.

doi:10.1016/s0196-8904(96)00108-2

Cited by 110 publications

(61 citation statements)

References 7 publications

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“…Unbalanced reactive power operation results in voltage variation. Reactive power control by using VAR compensator (SVC) [22], or static-synchronous compensator (STAT-COM) [23], work well but they may add harmonics to the electrical network while compensating reactive power continuously and may not be able to provide the adequate amount of reactive power under varying input and/or load conditions such as wind energy sources which fluctuate highly in nature. On the other hand, several techniques to improve the power factor of induction machines have been suggested, namely, capacitors, capacitors with switched inductor, and solid-state power factor controllers [10,11].…”

Section: Induction Generator For Wind Powermentioning

confidence: 99%

Performance Evaluation of an Induction Machine with Auxiliary Winding for Wind Turbine Power

Habash

Tang

Guillemette³

et al. 2012

ISRN Renewable Energy

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The purpose of this paper is to reinforce with theoretical and experimental evaluation the effectiveness of employing an induction generator to enhance the performance of a small wind energy converter (SWEC). With this generator, the SWEC works more efficiently and therefore can produce more energy in a unit turbine area. To verify the SWEC performance, a model has been proposed, simulated, built, and experimentally tested over a range of operating conditions. The results demonstrate a significant increase in output power with an induction generator that employs an auxiliary winding, which is only magnetically coupled to the stator main winding. It is also shown that the operating performance of the induction machine with the novel proposed technique is significantly enhanced in terms of suppressed signal distortion and harmonics, severity of resistive losses and overheating, power factor, and preventing high inrush current at starting.

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Section: Induction Generator For Wind Powermentioning

confidence: 99%

Performance Evaluation of an Induction Machine with Auxiliary Winding for Wind Turbine Power

Habash

Tang

Guillemette³

et al. 2012

ISRN Renewable Energy

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“…In previous studies have discussed many frequency control on microhydro, such as [1], [2], [3,4]. Of the several studies, micro-hydro control is still not optimal because it is still based on conventional PID.…”

Section: Introductionmentioning

confidence: 99%

Capacitive Energy Storage (CES) Optimization For Load Frequency Control in Micro Hydro Power Plant Using Imperialist Competitive Algorithm (ICA)

Djalal¹,

Yunus²,

Imran³

et al. 2018

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This paper presents a method for enhancing the frequency performance of micro hydro power plant by adding an additional device called capacitive energy storage (CES). A modification has been made by adding PID controller as additional controller of CES. Furthermore, to obtain the optimal parameter of CES, an optimization approach called imperialist competitive algorithm (ICA) is used as an optimization method. From the simulation results show that by adding CES-PID the frequency performance of the micro hydro power system is enhanced significantly. Moreover, the best performance is performed by a system with CES-PID optimized by ICA indicated by smallest overshoot. The analysis result obtained small overshoot response by using PID-CES controller that is equal to -1.371e-05pu, for system without controller equal to -0.000318 pu. By comparison, several scenarios for control methods are used.

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“…A wind-diesel model and its transient behavior are discussed in [5]. In [6], a strategy to control frequency variations in this kind of systems is proposed.…”

Section: Introductionmentioning

confidence: 99%

Power System Stability of a Small Sized Isolated Network Supplied by a Combined Wind-Pumped Storage Generation System: A Case Study in the Canary Islands

et al. 2012

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Massive integration of renewable energy sources in electrical power systems of remote islands is a subject of current interest. The increasing cost of fossil fuels, transport costs to isolated sites and environmental concerns constitute a serious drawback to the use of conventional fossil fuel plants. In a weak electrical grid, as it is typical on an island, if a large amount of conventional generation is substituted by renewable energy sources, power system safety and stability can be compromised, in the case of large grid disturbances. In this work, a model for transient stability analysis of an isolated electrical grid exclusively fed from a combination of renewable energy sources has been studied. This new generation model will be installed in El Hierro Island, in Spain. Additionally, an operation strategy to coordinate the generation units (wind, hydro) is also established. Attention is given to the assessment of inertial energy and reactive current to guarantee power system stability against large disturbances. The effectiveness of the proposed strategy is shown by means of simulation results. OPEN ACCESSEnergies 2012, 5 2352

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Load frequency control of isolated wind diesel hybrid power systems

Cited by 110 publications

References 7 publications

Performance Evaluation of an Induction Machine with Auxiliary Winding for Wind Turbine Power

Performance Evaluation of an Induction Machine with Auxiliary Winding for Wind Turbine Power

Capacitive Energy Storage (CES) Optimization For Load Frequency Control in Micro Hydro Power Plant Using Imperialist Competitive Algorithm (ICA)

Power System Stability of a Small Sized Isolated Network Supplied by a Combined Wind-Pumped Storage Generation System: A Case Study in the Canary Islands

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