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This paper presents a photovoltaic (PV) system with an adaptive sliding mode control based maximum power point tracking (MPPT) algorithm. The main aim of this work is to maximize power extraction from the photovoltaic generator. A novel method, which is able to achieve this aim, is presented by using an adaptive sliding mode controller (ASMC) that drives a boost converter connected between the PV...
Now-a-days renewable energy is the major concern due to the speed tendency in the progress of nations across the world and increased interests in environmental issues, In this research work on Design and Simulation of Power Electronic Controller for the model of Grid Connected PV Array for the purpose of maximum power point tracking (MPPT) using the DC boost convertor with line commutated invertor...
This work deals with a non-linear technique to control a grid connected photovoltaic system. Sliding-Mode Controller (SMC) is proposed to offer a proper and a rapid maximum power point tracking to control the boost converter. To guarantee the SMC stability, three conditions are fulfilled and performed: transversality, reachability and equivalent control. The Sliding-Mode approach is applied also to...
this paper develops an adaptive control to extract the maximum power from the photovoltaic generator. A new algorithm is developed based on the Modified Model Reference Adaptive Control (MMRAC) combined with Incremental Conductance algorithm (IC), and Lyapunov method to obtain the control law to achieve fastly the Maximum Power Point (MPP) under the variation of temperature and the irradiance. This...
A maximum power point tracking (MPPT) scheme based on a power factor correction (PFC) strategy that uses a multiplier approach is presented. The purpose is that the switching converter behaves as a resistor seen by the photovoltaic module, and thus regulate the input voltage to a desired value. Moreover the multiplier approach considers an inner current loop and an outer voltage loop. In order to...
The high step-up converter is inevitable in a photovoltaic system since it requires a sufficiently high step-up conversion. A high step up converter with coupled inductors could be used for this purpose due to its inherent advantages. It acts as an efficient interface between the PV system and the grid. The output obtained in such a system is found to be fluctuating with load variations. This could...
The Photovoltaic cell is considered as one of the most promising devices in photovoltaic generation. It is used to convert solar energy into electrical energy. Nowadays, Photovoltaic generation is developing more rapidly as a renewable energy source. But, the drawback is that Photovoltaic generation is discontinuous because of it depends on the weather conditions. This paper offers an intelligent...
This paper deals a grid-connected photovoltaic (PV) system that is composed of a PV array, boost converter with Robust Tracking Fuzzy sliding mod MPPT control strategy, and inverter coupled to grid. The MPPT control was performed using a hybrid control between the sliding mode control known for its simplicity and its position vis-à-vis robustness interference and control by fuzzy logic known by its...
This paper presents the control of a photovoltaic distributed generation system based on dual-stage topology of DC-DC boost converter and three-level neutral-point-clamped (NPC) voltage source inverter (VSI). Decoupling control strategy of three-level VSI is proposed to control the current injected into the grid, reactive power compensation, and DC-link voltage. The resulting system is able to extract...
The well known advantages from PV based power generation (PVPG) are pollution free, short-term installation and long life operation. However, disadvantages are also associated, for e.g. dependency of generated power on weather conditions, and researchers are putting efforts to overcome them by application of power electronic based devices and techniques like maximum power point (MPPT) in the systems...
Solar energy is a renewable energy resource which widely used now days. Photovoltaic is the process of converting the light source into electrical since they produce a nonlinear output. These solar panels are high cost but low efficient during change in ambient conditions. Hence by using LABVIEW as software the maximum power point of a solar panel is tracked by using a simple and fast perturb and...
Photovoltaic generation is the technique which uses photovoltaic cell to convert solar energy to electric energy. Nowadays, PV generation is developing increasingly fast as a renewable energy source. However, the disadvantage is that PV generation is intermittent for depending on weather conditions. This paper proposes an intelligent control method for the maximum power point tracking (MPPT) of a...
. This paper proposes an DC-linked hybrid diesel/photovoltaic (PV)/battery storage system for stand-alone applications. PV is the primary power sources of the system, a diesel engine is used as a backup and a battery as storage system. An overall power management strategy is designed for the proposed system to manage power flows among the different energy sources and the storage unit in the system...
In this paper, an advanced mppt tracking is utilized to extract the maximum power from solar PV array. The tracked maximum voltage is fed to the simple boost converter to increment the voltage. Following the tracking process, the boosted DC voltage is implied for charging portable UPS. In the proposed PV system, the incremental conductance MPPT algorithm is utilized for tracking the maximum power,...
Although photovoltaic (PV) systems are generally based on Maximum Power Point Tracking (MPPT), many situations such as stand-alone systems or microgrids increasingly require the PV system to operate below maximum power. The problem here is that the power regulation becomes unstable when the MPP power is lower than the reference power as a result of a decrease in irradiance. This paper proposes a control...
In this paper, we study a system consisting of a photovoltaic (PV) array panel, dc-to-dc switching converter and a battery. A backstepping PWM controller is developed to maximize the power of the solar generating system. The controller tracks a desired array voltage, designed online by using MPPT algorithm, by varying the duty cycle of the switching converter. The stability of the control algorithm...
This paper focuses on the modeling, controller design, simulation and analysis of a two-string photovoltaic (PV) and storage system connected to grid via a centralized nine-switch three-level inverter. A circuit-based PV array model is presented for use. A boost converter is employed to enable PV to operate at its maximum power point. The storage system consists of a capacitor bank connected at the...
This paper proposes an FPGA implementation of a new Maximum Power Point Tracking (MPPT) technique for Photovoltaic (PV) applications. The main idea is to develop an improved Perturb and Observe (P&O) MPPT control for an easy FPGA implementation. This new algorithm consists of a constant perturbation with an offset control which will make easier the FPGA PV power data acquisition process. This...
This paper presents a DC-AC converter that merges a DC-DC converter and an inverter in a single-stage topology to be used as an interface converter between photovoltaic systems and the electrical AC grid. This topology is based on a full bridge converter with three levels output voltage, where two diodes and one inductor have been added in order to create a Boost converter. The control system of the...
In this paper, a prototype fuzzy logic based maximum power point tracking (MPPT) controller for photovoltaic (PV) systems is presented. The prototype is a boost converter controlled by dSpace® using DS 1104 boar to control current will be extracted from PV. The current is related to maximum power at the moment. That is the implementation MPPT. This paper show comparison result MPPT using FLC and conventional...
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