Proceedings ArticleDOI
Simplified maximum power point controller for PV installations
D.B. Snyman,Johan H. Enslin +1 more
- pp 1240-1245
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TLDR
A new low-cost, simplified control strategy, based on the positive feedback of the output current in a maximum power point tracking (MPPT) converter, is introduced, which reduces the energy cost of renewable energy generators by optimizing the utilization of the renewable energy source.Abstract:
A new low-cost, simplified control strategy, based on the positive feedback of the output current in a maximum power point tracking (MPPT) converter, is introduced. Cost effective MPPT reduces the energy cost of renewable energy generators by optimizing the utilization of the renewable energy source. Maximum power point tracking for relative small photovoltaic (PV) power systems, with battery back-up, is achieved by employing this simplified positive feedback control strategy to maximize the output current into the battery. This new control strategy is analyzed and practical tested by using a buck power converter topology, but can also be used by the known converter topologies for PV systems and other renewable energy sources with a single power maximum. Experimental verification on the operation of this controller is included. >read more
Citations
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Journal ArticleDOI
Integrated photovoltaic maximum power point tracking converter
TL;DR: A low-power low-cost highly efficient maximum power point tracker (MPPT) to be integrated into a photovoltaic (PV) panel is proposed, which can result in a 25% energy enhancement compared to a standard photovolar panel, while performing functions like battery voltage regulation and matching of the PV array with the load.
Journal ArticleDOI
On the control of photovoltaic maximum power point tracker via output parameters
TL;DR: In this article, the maximum power point tracker output voltage and current are used for control purposes, rather than for its input voltage or current, and it is shown that using the output parameters simplifies the MPPT controller.
Proceedings ArticleDOI
An improved MPPT converter using current compensation method for small scaled PV-applications
TL;DR: In this paper, an improved MPPT converter with current compensation method for small-scaled PV-applications is presented, which implements maximum power point tracking (MPPT) by variable reference current which is continuously changed during one sampling period.
Journal ArticleDOI
Classification and Evaluation Review of Maximum Power Point Tracking Methods
TL;DR: This study gives a concise classification and evaluation review of all the applied Maximum Power Point Tracking methods and provides an accessible reference to undertake mass research works in MPPT in the near future.
Journal ArticleDOI
A dynamic power management strategy of a grid connected hybrid generation system using wind, photovoltaic and Flywheel Energy Storage System in residential applications
Ghada Boukettaya,Lotfi Krichen +1 more
TL;DR: In this article, a global supervisory strategy for a micro-grid power generation system that comprises wind and photovoltaic generation subsystems, a flywheel storage system, and domestic loads connected both to the hybrid power generators and to the grid, is developed.
References
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Simple switching control method changes power converter into a current source
TL;DR: In this paper, a switching converter with an LC output filter behaves as a loose-tolerance voltage-controlled current source if each switch closure is ended when switch current reaches an adjustable threshold.
Journal ArticleDOI
Near-Optimum Dynamic Regulation of DC-DC Converters Using Feed-Forward of Output Current and Input Voltage with Current-Mode Control
Richard Redl,Nathan O. Sokal +1 more
TL;DR: In this article, the authors proposed to add feed-forward of output current and input voltage to a current-mode controller, which is applicable to both forward and flyback types of converters and to all types of currentmode control.
Journal ArticleDOI
Combined low-cost, high-efficient inverter, peak power tracker and regulator for PV applications
D.B. Snyman,Johan H. Enslin +1 more
TL;DR: In this article, a novel compound power converter that serves as a DC-to-AC inverter, maximum power point tracker (MPPT), and battery charger for stand-alone photovoltaic (PV) power systems is introduced.
Proceedings ArticleDOI
A simplified maximal power controller for terrestrial photovoltaic panel arrays
J.J. Schoeman,J.D. van Wyk +1 more
TL;DR: In this article, a system that uses the V-I characteristics of commercial solar panels with insolation, ambient temperature and production spread as parameter, indicate that the maximum power is obtained from such a panel when it is loaded to a working voltage that is a fixed percentage of its open circuit voltage within (+2)%.
Journal ArticleDOI
The Quality of Load Matching in a Direct-Coupling Photovoltaic System
TL;DR: In this article, the quality of load matching in a photovoltaic system is defined as the ratio of the load input power to the generator's maximum power as a function of the solar insolation, or as the function of solar time.