Generating Power Leveling of Renewable Energy for Small Power System in Isolated Island

Senjyu, Tomonobu; Hayashi, Daisuke; Sakamoto, Ryosei; Urasaki, Naomitsu; Funabashi, Toshihisa

doi:10.1541/ieejpes.125.1209

Cited by 24 publications

(14 citation statements)

References 7 publications

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“…Therefore, the operation cost can be less since the use of DG will reduce. It is also better for environmental protection by using fuel cell instead of fossil fuel [1]- [4].…”

Section: Introductionmentioning

confidence: 99%

Optimal operation of power systems with power players

Mengyan

Higa

Yona

et al. 2012

2012 International Conference on Renewable Energy Research and Applications (ICRERA)

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Due to the global warming and energy resource shortage, renewable energies such as wind generation (WG), photovoltaic (PV) facility are getting more attention in distribution systems. It is very necessary to use renewable energy with present power equipments cooperatively as it can be easily affected by the different weather conditions. Since the cost of diesel generator (DG) is high when starting up or shutting down, the electric power system should consist of small power system groups and share electric power with each other by interchanging. In this paper, the optimal method is proposed to determine the scheduling of the isolated island power system including WG, PV facility, DG, and battery energy storage system (BESS). The optimization is divided into two parts using genetic algorithm. First, the scheduling problem of DG unit commitment is decided by the revised load with the optimal operation of individual power system. Second, optimization of the electric power system group is performed by using the results of first step. The simulation results show the reduction of operational cost which confirms the feasibility and effectiveness.

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“…Therefore, the operation cost can be less since the use of DG will reduce. It is also better for environmental protection by using fuel cell instead of fossil fuel [1]- [4].…”

Section: Introductionmentioning

confidence: 99%

Optimal operation of power systems with power players

Mengyan

Higa

Yona

et al. 2012

2012 International Conference on Renewable Energy Research and Applications (ICRERA)

Self Cite

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“…However, storing power for the long term is difficult, and the costs of highcapacity power storage devices for this purpose are high. Thus, systems that combine wind power generation and an electrolyzer for water as a hydrogen generation device have been proposed [1]. Smoothing of wind power output is possible by using the fluctuations for hydrogen generation with an electrolyzer.…”

Section: Introductionmentioning

confidence: 99%

A Study of Hydrogen Generation with Doubly‐Fed Adjustable Speed Wind Generator

Kinoshita

Takahashi

Murata

et al. 2011

Electrical Engineering Japan

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SUMMARYThis paper presents a combination system for wind power generation and hydrogen generation. In the proposed system, a doubly-fed synchronous generator (DFSG) is used as an adjustable speed wind generator, and an electrolyzer is connected to its terminals for hydrogen generation, which is controlled by power electronic converters. The output power from the wind generator is smoothed and supplied to the power system as well as to the electrolyzer to generate hydrogen under cooperative control between the wind generator and the electrolyzer. The performance of the proposed system is investigated by simulation analyses, in which simulations are performed using PSCAD/EMTDC.

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“…Because of this problem, various schemes have been reported in recent years. For example, using storage battery, superconducting magnetic energy storage (SMES) [2], [3] , electric double layer capacitor (EDLC) [4], [5] , aqua electrolyzer with fuel cell [6], [7] , flywheel energy storage system (FESS), and back-up generator. However, high frequency charge and discharges affect the efficiency of the lead-acid battery thereby shortening its life.…”

Section: Introductionmentioning

confidence: 99%

Output Power Leveling of a Wind Generation System Using Inertia of a Wind Turbine

Howlader¹,

Urasaki²,

Yona³

et al. 2009

International Journal of Emerging Electric Power Systems

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Wind energy conversion systems have become important in the research of renewable energy sources. This is in no small part due to the rapid advances in the size of wind generators as well as the development of power electronics and their applicability in wind energy extraction. However, wind energy has a drawback of having only 1/800 (gm per cubic cm) density as compared to that of water energy. Wind energy does not remain constant and wind turbine output is proportional to the cube of wind speed, which causes the generated power of the wind turbine generator (WTG) to fluctuate. In this paper, a technique is proposed for output power leveling of a wind generation system. Wind turbine blades have a large inertia compared to the inertia of a generator. The inertia of the rotor behaves like an inductor in an electrical circuit. It helps smooth the wind turbine output power, stores energy during acceleration, and restores energy during deceleration. The effectiveness of output power leveling control is verified by simulations for the wind power generation system.Brought to you by | University of Iowa Libraries Authenticated Download Date | 5/31/15 9:25 PM * P max is the integral of wind generation system output power; the effect is that P out goes up by increasing * P max . Meanwhile, * P level is the integral of absolute value of derivative of P out . The fluctuation quantity of output power gets smaller

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Generating Power Leveling of Renewable Energy for Small Power System in Isolated Island

Cited by 24 publications

References 7 publications

Optimal operation of power systems with power players

Optimal operation of power systems with power players

A Study of Hydrogen Generation with Doubly‐Fed Adjustable Speed Wind Generator

Output Power Leveling of a Wind Generation System Using Inertia of a Wind Turbine

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