Journal ArticleDOI
Voltage regulation of photovoltaic arrays: small-signal analysis and control design
TLDR
In this article, the voltage regulation problem is addressed with a detailed analysis that starts with the modelling of the PV array and the converter, followed by study, design, simulation and practical experiments of three closed-loop control strategies for the buck converter.Abstract:
This study deals with the regulation of the output voltage of photovoltaic (PV) arrays. As a case study, the DC-DC buck converter is used as an interface between the PV array and the load, but other types of converters can be used for the same purpose. The input voltage of the converter is controlled in order to regulate the operating point of the array. Besides reducing losses and stress because of the bandwidth-limited regulation of the converter duty cycle, controlling the converter input voltage reduces the settling time and avoids oscillation and overshoot, making easier the functioning of maximum power point tracking (MPPT) methods. The voltage regulation problem is addressed with a detailed analysis that starts with the modelling of the PV array and the converter. This analysis is followed by study, design, simulation and practical experiments of three closed-loop control strategies for the buck converter. Control stability and implementation considerations are presented.read more
Citations
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Journal ArticleDOI
A current and future study on non-isolated DC–DC converters for photovoltaic applications
TL;DR: In this paper, the state-of-the-art in research works on non-isolated DC-DC buck, boost, buck-boost, Cuk and SEPIC converters and their characteristics, to find a solution best suiting an application with maximum power point tracking.
Journal ArticleDOI
Modelling and control of photovoltaic panels utilising the incremental conductance method for maximum power point tracking
TL;DR: In this article, a linearized small signal model incorporating an incremental conductance-based MPPT process is proposed to overcome the formation of a degenerate model when conventional linearisation techniques are applied.
Journal ArticleDOI
A review on China׳s large-scale PV integration: Progress, challenges and recommendations
TL;DR: In this article, the authors extensively review the present research and application status of large-scale PV (LSPV) power generation in China, discusses the modelling and simulation techniques of LSPV, explores impacts of integration on dynamic and static characteristics of power systems, and describes key technologies about LSPVs power generation delivery and consumption from the perspective of power system planning, simulation, dispatching and control.
Journal ArticleDOI
FPGA-based real time incremental conductance maximum power point tracking controller for photovoltaic systems
Rasoul Faraji,Amin Rouholamini,Hamid Reza Naji,Roohollah Fadaeinedjad,Mohammad Reza Chavoshian +4 more
TL;DR: The optimised design of hardware architecture and the high processing speed of FPGA have enhanced the performance of digital controller in designed MPPT system and the proposed method provides a good tracking speed and also mitigation of fluctuation output power.
Journal ArticleDOI
Recent trends in solar PV inverter topologies
TL;DR: A detailed analysis and classification about all the inverter attributes are presented for the 45 reviewed topologies, intended to serve as an expedient reference for selecting best power converter for a specific requirement in PV systems.
References
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Book
Discrete-Time Signal Processing
TL;DR: In this paper, the authors provide a thorough treatment of the fundamental theorems and properties of discrete-time linear systems, filtering, sampling, and discrete time Fourier analysis.
Book
Fundamentals of Power Electronics
TL;DR: Converters in Equilibrium, Steady-State Equivalent Circuit Modeling, Losses, and Efficiency, and Power and Harmonics in Nonsinusoidal Systems.
Book
Feedback Control of Dynamic Systems
TL;DR: This introductory book provides an in-depth, comprehensive treatment of a collection of classical and state-space approaches to control system design and ties the methods together so that a designer is able to pick the method that best fits the problem at hand.
Journal ArticleDOI
Comprehensive Approach to Modeling and Simulation of Photovoltaic Arrays
TL;DR: In this article, the authors proposed a method of modeling and simulation of photovoltaic arrays by adjusting the curve at three points: open circuit, maximum power, and short circuit.
Proceedings ArticleDOI
A general unified approach to modelling switching-converter power stages
R.D. Middlebrook,Slobodan Cuk +1 more
TL;DR: A new canonical circuit model is proposed, whose fixed topology contains all the essential inputr-output and control properties of any dc-todc switching converter, regardless of its detailed configuration, and by which different converters can be characterized in the form of a table conveniently stored in a computer data bank to provide a useful tool for computer aided design and optimization.