Testing the technologies

Hara, Ryoichi; Kita, Hidetoshi; Tanabe, Takayuki; Sugihara, Hiroyuki; Kuwayama, A.; Miwa, S.

doi:10.1109/mpe.2009.932310

Cited by 68 publications

(16 citation statements)

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“…In addition, the purchase capacity from the grid is set up to 5000 kW and sale capacity from the grid is set to 1000 kW only. This is due to the fact that the amount of electricity sold to grid should not exceed the maximum capacity used by load to prevent the effect of reverse power flow [25].…”

Section: Grid Utility and Feed-in Tariff (Fit)mentioning

confidence: 99%

Techno-economic and sensitivity analysis for grid-connected renewable energy electric boat charging station in Terengganu

Salleh

Muda

2016

MATEC Web Conf.

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Abstract. In order to encourage the eco-friendly technologies in transportation sector, the reliance on fuel need to be reduced and the use of renewable energy (RE) technology as energy source are widely explored by researchers. Thus, this study focus on the feasibility of developing gridconnected renewable energy electric boat charging station for the fishermen in Terengganu using simulation-based method by HOMER software. Five year solar radiation and wind speed data were collected at Universiti Sultan Zainal Abidin (UNISZA) weather station. For load profile, the information about fishing activities and the amount of subsidy spent by the government were obtained from the interview session with the fishermen and validated with Lembaga Kemajuan Ikan Malaysia (LKIM). The results acquired are compared between grid-only and grid-connected RE systems in term of net present cost (NPC), operational cost and payback period. A sensitivity analysis is done to find the minimal Feed-in Tariff (FiT) rate that can be implemented in order to encourage the use of RE system in this sector. Then, the relationship between FiT and NPC, payback period and emission of pollutants are analyzed. At current FiT rates RM 0.813/kWh, hybrid grid-PV system manages to achieve its optimal in generating high income from selling the power to the grid with convincing amount of electricity production and short payback period. It is concluded at minimum RM 0.56/kWh of FiT, the grid-connected RE system is possible to be developed because its performance shows better outcome compared to the grid-only system.

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Section: Grid Utility and Feed-in Tariff (Fit)mentioning

confidence: 99%

Techno-economic and sensitivity analysis for grid-connected renewable energy electric boat charging station in Terengganu

Salleh

Muda

2016

MATEC Web Conf.

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“…The cumulative installed capacity of PV system has been exponentially increased worldwide with the improving efficiency of PV modules and governmental subsidies for its initial cost (Hara et al (2009)). As mentioned previously, the output power from PV system is mainly affected by the amount of irradiation.…”

Section: Residential Pv Systemmentioning

confidence: 99%

A Study on Optimal Sizing and Control for Hybrid Energy Storage System with SMES and Battery**This work was supported in part by the National Research Foundation (NRF) of Korea grant funded by the Korea government (MEST) (No. 2011-0028065) and in part by the Power Generation & Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Korea (20141020402340).

2015

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This paper proposes the new hybrid energy storage system with the superconducting magnetic energy storage (SMES) and a lead-acid battery. The SMES is the most effective energy storage device due to its high power density, fast response, and high efficiency. However, its energy density is not higher than that of other batteries. Therefore, the proposed hybrid energy storage system combines these two energy storage devices. The optimal sizes of the SMES and battery are determined by considering the system cost, output power reference, and their proper efficiencies. Also, the new control algorithm is applied to share the charging and discharging powers effectively and therefore to manage the state-ofcharge (SOC) in each energy storage device. Then, the performance of proposed hybrid energy storage system is evaluated on a residential photovoltaic (PV) system with respect to energy capacity, peak load leveling, and system efficiency.

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“…To solve these matters, renewable power plants such as WTG and PV that are available natural and clean resources should be introduced. The penetration of WTG and PV into the Japanese power system is rising due to two main factors: improved generation efficiency of WTG and PV modules and governmental subsides [7]. Moreover, the fuel-cell (FC) is one of the important future sources for the green power [8].…”

Section: Introductionmentioning

confidence: 99%

A Polar Fuzzy Control Scheme for Hybrid Power System Using Vehicle-To-Grid Technique

et al. 2017

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Abstract:A novel polar fuzzy (PF) control approach for a hybrid power system is proposed in this research. The proposed control scheme remedies the issues of system frequency and the continuity of demand supply caused by renewable sources' uncertainties. The hybrid power system consists of a wind turbine generator (WTG), solar photovoltaics (PV), a solar thermal power generator (STPG), a diesel engine generator (DEG), an aqua-electrolyzer (AE), an ultra-capacitor (UC), a fuel-cell (FC), and a flywheel (FW). Furthermore, due to the high cost of the battery energy storage system (BESS), a new idea of vehicle-to-grid (V2G) control is applied to use the battery of the electric vehicle (EV) as equivalent to large-scale energy storage units instead of small batteries to improve the frequency stability of the system. In addition, EV customers' convenience is taken into account. A minimal-order observer is used to estimate the supply error. Then, the area control error (ACE) signal is calculated in terms of the estimated supply error and the frequency deviation. ACE is considered in the frequency domain. Two PF approaches are utilized in the intended system. The mission of each controller is to mitigate one frequency component of ACE. The responsibility for ACE compensation is shared among all parts of the system according to their speed of response. The performance of the proposed control scheme is compared to the conventional fuzzy logic control (FLC). The effectiveness and robustness of the proposed control technique are verified by numerical simulations under various scenarios.

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Testing the technologies

Cited by 68 publications

References 0 publications

Techno-economic and sensitivity analysis for grid-connected renewable energy electric boat charging station in Terengganu

Techno-economic and sensitivity analysis for grid-connected renewable energy electric boat charging station in Terengganu

A Polar Fuzzy Control Scheme for Hybrid Power System Using Vehicle-To-Grid Technique

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