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Converter per photovoltaic module (CPM) system has been researched to increase the efficiency of photovoltaic (PV) power generation system. The stability and efficiency of PV system might be different according to the connection structure of CPMs. Differences between series and parallel connection of CPMs for PV power generation system were analyzed in this paper. Boost type CPM was used to control...
This paper describes hardware implementation of optimization technique based sensorless MPPT (maximum power point tracking) method for grid-connected PV (photovoltaic) generation system. A DC-DC converter has been used to step-up the PV system voltage. Optimization technique (Simplex) has been implemented to optimize the current and voltage controller gain parameters. Optimization of duty ratio increment...
An effective POS (photovoltaic output sensorless) MPPT (maximum power point tracking) control method for PV (Photovoltaic) power generation system is proposed in this paper. A fuzzy logic based algorithm, which has a simple feedback structure and fewer measured parameters, is proposed and applied to the control strategy of a DC/DC converter for effective realization of MPPT (maximum power point tracking)...
An unintentional islanding may result in personnel and equipment safety hazards. In order to detect the islanding, an anti-islanding method for the photovoltaic power generation and active filter (PV-AF) system was proposed by the authors. However, when multiple PV systems are connected to the same distribution line, the detection of islanding is more difficult than the single PV system is connected...
This paper deals with harmonics and reactive power compensation method by grid-connected Photovoltaic (PV) generation system. The experiment is carried out on the proposed single-stage grid-connected PV generation system, and controlled by digital signal processor TMS320F2812. The experimental results include converter operating features either as active power filter or static synchronous compensator...
This paper presents hardware based performance analysis results of a multi-function grid connected single-phase PV (photovoltaic) power generation system including active filter function. The theory of Park transformation, which transforms the three-phase system to the vectors in the rotary dq coordinate axis, has been applied to the control strategy of a grid-connected single-phase PV power generation...
Photovoltaic (PV) power generation system is a promising source of energy with great interest in clean and renewable energy sources. And many PV systems are interconnected to the distribution system. The growing number of power electronics-based equipment has posed a problem on the quality of electric power supply. Both high power industrial loads and domestic loads cause harmonics in the utility...
The goal of this study about photovoltaic (PV) power generation system is to keep output power of photovoltaic cells maximized under any weather conditions. In a conventional MPPT (Maximum Power Point Tracking) control method, both voltage and current coming out from PV array have to be fedback. Thus, the system has a complex structure, and may fail to track MPP of PV array when unexpected weather...
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