Proceedings ArticleDOI
Simplified feed-forward control of the maximum power point in PV installations
Johan H. Enslin,D.B. Snyman +1 more
- pp 548-553
TLDR
In this article, a simplified MPPT control strategy based on the positive feedback of a maximum power point tracking (MPPT) converter output current was introduced to reduce the energy cost from renewable energy generators by optimizing the utilization of the renewable energy source.Abstract:
A novel simplified control strategy, based on the positive feedback of a maximum power point tracking (MPPT) converter output current, is introduced. Cost-effective MPPT reduces the energy cost from renewable energy generators by optimizing the utilization of the renewable energy source. MPPT for relative small photovoltaic (PV) systems, with battery back-up, is achieved by maximization of the output current to the battery by employing this simplified positive feedback control strategy. This strategy was tested by using a buck converter topology. Experimental verification of the operation of this controller is included. This controller can be utilized in small (one or two panel) as well as larger installations, so that the total MPPT converter cost may be a fraction of the solar panel cost. >read more
Citations
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Journal ArticleDOI
Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques
Trishan Esram,Patrick L. Chapman +1 more
TL;DR: The many different techniques for maximum power point tracking of photovoltaic (PV) arrays are discussed in this paper, and at least 19 distinct methods have been introduced in the literature, with many variations on implementation.
Journal ArticleDOI
Development of a microcontroller-based, photovoltaic maximum power point tracking control system
TL;DR: In this paper, a buck-type DC/DC converter is used to maximize the photovoltaic array output power, irrespective of the temperature and irradiation conditions and of the load electrical characteristics.
Journal ArticleDOI
Adaptive piezoelectric energy harvesting circuit for wireless remote power supply
TL;DR: In this article, an analytical expression for the optimal power flow from a rectified piezoelectric device is derived, and an energy harvesting circuit consisting of an AC-DC rectifier with an output capacitor, an electrochemical battery, and a switch-mode DC-DC converter that controls the energy flow into the battery.
Adaptive piezoelectric energy harvesting circuit for wireless, remote power supply
TL;DR: Experimental results reveal that use of the adaptive DC-DC converter increases power transfer by over 400% as compared to when the DC- DC converter is not used.
Journal ArticleDOI
A review of maximum power point tracking techniques of PV system for uniform insolation and partial shading condition
TL;DR: The main techniques that will be deliberated are the Perturb and Observe, Incremental Conductance and Hill Climbing, as well as the more recent MPPT approaches using soft computing methods such as Fuzzy Logic Control, Artificial Neural Network and Evolutionary Algorithms.
References
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Simple switching control method changes power converter into a current source
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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
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