Minimal-order observer-based coordinated control method for isolated power utility connected multiple photovoltaic systems to reduce frequency deviations

Datta, Manoj; Senjyu, Tomonobu; Yona, Atsushi; Funabashi, Toshihisa

doi:10.1049/iet-rpg.2008.0050

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…With the increasing trend in displacing the conventional power plants with renewable plants, effects in frequency control will come into sight. Applying various intelligent control methods like fuzzy, neural network and observer methods will be useful for more flexibility [78,79].…”

Section: Active Power and Frequencymentioning

confidence: 99%

Integration of Large Scale PV-Based Generation into Power Systems: A Survey

et al. 2019

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This paper reports a general overview of current research on analysis and control of the power grid with grid scale PV-based power generations as well as of various consequences of grid scale integration of PV generation units into the power systems. Moreover, the history of PV renewable growth, deregulation of power system and issues related to grid-connected PV systems considering its contribution to various responsibilities like frequency control, virtual inertia capabilities and voltage regulation are discussed. Moreover, various outcomes of the high-penetrated grid with PV power plants such as power quality, active and reactive power control, protection, balancing and reliability under various loading conditions are reviewed and discussed.

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Section: Active Power and Frequencymentioning

confidence: 99%

Integration of Large Scale PV-Based Generation into Power Systems: A Survey

et al. 2019

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“…Moreover, the high-order observer is treated to be a major deficit to state-space theory for years, as it limits the practical implementation. So, the minimal-order observer is usually desired for the practical use and easy implementation [51]. P d and P C are estimated using ∆F and the input signal of governor P 1 , that is got from ∆F.…”

Section: Minimal-order Observer Implementationmentioning

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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“…[26,27]. Extending the control methods to the WTG system, a coordinated control method is proposed in this paper.…”

Section: Coordinated Control Of the Systemmentioning

confidence: 99%

“…A state-space equation is derived for the small power system as shown in Fig. 2 [27]. The state-space equation is given by:…”

Section: Load Estimation By a Disturbance Observermentioning

confidence: 99%

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

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Izumi

Uehara

et al. 2012

Energy

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Minimal-order observer-based coordinated control method for isolated power utility connected multiple photovoltaic systems to reduce frequency deviations

Cited by 9 publications

References 21 publications

Integration of Large Scale PV-Based Generation into Power Systems: A Survey

Integration of Large Scale PV-Based Generation into Power Systems: A Survey

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

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

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