Control of DC/DC converters for solar energy system with maximum power tracking

2002 ◽  
Author(s):  
Chihchiang Hua ◽  
Chihming Shen
Keyword(s):  
Solar Energy ◽  
Energy System ◽  
Maximum Power ◽  
Maximum Power Tracking

Power Converter for Dual-Power PV-Grid Energy System Utilizing Cascaded Multilevel Inverter

2014 ◽  
Vol 925 ◽  
pp. 505-509 ◽  
Author(s):  
Intan Rahayu Ibrahim ◽  
Ahmad Maliki Omar ◽  
Zakaria Hussain
Keyword(s):  
Solar Energy ◽  
Electrical Energy ◽  
Energy System ◽  
Power Converter ◽  
Maximum Power ◽  
Multilevel Inverter ◽  
Grid System ◽  
Peak Period ◽  
Pv Grid ◽  
Dual Power

The dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. The power converter in the PV energy system is used to process solar energy captured by PV modules into usable electrical energy. In the dual-power PV-grid system, the power converter component is consists of a boost regulator to boost and regulate PV outputs to fixed voltage of 240V, 50Hz, a maximum power point tracker (MPPT) to derive maximum power from PV panels and a three operation modes of the battery converter to regulate charging current/discharging current under various PV output and load variation. In this project, a reduced switch and increased level of cascaded H-bridge multilevel inverter was introduced to convert the direct current (DC) output of the solar energy to alternating current (AC) signal to supply an AC load or to be integrated to the grid system. By adapting selective harmonic elimination (SHE) switching strategy, the inverter produces 21 levels of stepped sinusoidal output signal with resultant total harmonics distortion (THD) of 3.90%.

Fuzzy logic control based maximum power tracking of a wind energy system

2001 ◽  
Vol 23 (2) ◽  
pp. 235-245 ◽  
Author(s):  
Amal Z. Mohamed ◽  
Mona N. Eskander ◽  
Fadia A. Ghali
Keyword(s):  
Fuzzy Logic ◽  
Wind Energy ◽  
Fuzzy Logic Control ◽  
Energy System ◽  
Maximum Power ◽  
Logic Control ◽  
Wind Energy System ◽  
Maximum Power Tracking

scholarly journals Design and Simulation of a DC Stabilization System for Solar Energy System

2019 ◽  
Vol 35 (2) ◽  
Author(s):  
Pham Thi Viet Huong ◽  
Mac Khuong Duy ◽  
Tran Anh Vu ◽  
Dang Anh Viet ◽  
Minh - Trien Pham
Keyword(s):  
Solar Energy ◽  
Output Voltage ◽  
Clean Energy ◽  
Energy System ◽  
Maximum Power ◽  
Maximum Efficiency ◽  
Solar Panels ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point

During the last few years, the demand for solar photovoltaic (PV) energy has grown remarkably since it provides electricity from an exhaustible and clean energy source. The generated power of solar panels depends on environment conditions, which changes continuously due to many factors, for example, the radiation, the characteristics of the load, etc. In order for the solar energy system operates at its most efficiency, it needs to work at its maximum power point (MPP). Previous literature has dealt with either investigating Maximum Power Point Tracking (MPPT) algorithms or tracking a steady output voltage from solar panels. However, when the load is changed, the new MPP need to be defined. In this paper, a novel adaptive MPPT system was proposed to investigate the MPP and keep tracking MPP at the same time. The proposed system was implemented in Proteus simulation. As the results, when the load is changing, the system obtained a steady and reliable desired output voltage. It is not only able to obtain a reliable steady DC output voltage but also keep the solar energy system work at its maximum efficiency.

scholarly journals Maximum Power Tracking System Based on Power Electronic Topology for Wind Energy Conversion System Applications

2018 ◽  
Vol 8 (5) ◽  
pp. 3392-3397 ◽  
Author(s):  
M. Hussain ◽  
M. H. Baloch ◽  
A. H. Memon ◽  
N. K. Pathan
Keyword(s):  
Wind Energy ◽  
Fossil Fuels ◽  
Tracking System ◽  
Low Cost ◽  
Nonlinear Behavior ◽  
Energy System ◽  
Maximum Power ◽  
Power Electronic ◽  
Generator System ◽  
Maximum Power Tracking

Wind energy has emerged as a dominant alternative power generation source. Conventional energy resources are depleting and their increasing cost cannot be ignored. Wind energy has taken an important role in replacing fossil fuels and nuclear energy. However, optimal exploitation of wind energy systems has remained a thought-provoking problem due to the nonlinear behavior of the wind speed. Distribution generation system and isolated micro-grid (MG) are mainly used in a wind energy system in order to utilize maximum potential of wind through the maximum power tracking algorithm based on DC-DC boost power electronic converter. In this paper, authors propose a technique which is effectively workable, highly reliable, of low cost and induces less mechanical stress on the wind generator system (WGS). Experimental results of the proposed system verify that the effectiveness near optimal WGS output power increased approximately up to 50%. Thus, better exploitation of the available wind power is obtained under low wind speeds.

Design a Optimum MPPT Controller for Solar Energy System

2016 ◽  
Vol 2 (3) ◽  
pp. 545 ◽  
Author(s):  
F. R. Islam ◽  
K. Prakash ◽  
K. A. Mamun ◽  
A. Lallu ◽  
R. Mudliar
Keyword(s):  
Solar Energy ◽  
Photovoltaic Cell ◽  
Energy System ◽  
Maximum Power ◽  
Maximum Efficiency ◽  
Maximum Power Point ◽  
Good Efficiency ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

<p>Solar energy is compared to be the best potential source of renewable energy in Pacific region. For this reason a photovoltaic cell is needed to harvest this kind of energy, gathering the most of it and the PV having a good efficiency.  The maximum efficiency is achieved when the PV works at its Maximum Power Point which entirely depends on the irradiation and temperature. This paper proposes a new design of hybrid Maximum Power Point Tracking and a comparative study is made with various existing MPPT techniques which include Perturb and Observe method, Incremental Conductance and Fuzzy Logic. From the comprehensive comparison study between existing MPPT technique and the proposed MPPT technique/theory, a hardware setup was demonstrated to verify the proposed design by charge controller in photovoltaic systems to which maximize the output power under various lighting conditions. The design is based on the computed results using the buck-boost DC-DC conveter. From the simulation, the proposed method tends to show better performance with almost no oscillations around the MPP.</p>

scholarly journals Solar Energy System Based Impedance-Source Inverter for Grid Connected System

2018 ◽  
Vol 7 (2) ◽  
pp. 129
Author(s):  
S Kamalakkannan ◽  
D. Kirubakaran
Keyword(s):  
Solar System ◽  
Solar Energy ◽  
Rapid Change ◽  
Energy System ◽  
Boost Converter ◽  
Maximum Power ◽  
Grid System ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point

In this work, the fickleness of solar energy can be overcome by using Maximum Power Point Tracking algorithm (MPPT). Perturb and Observation (P&amp;O) MPPT algorithm accomplish fast the maximum power point for rapid change of environmental conditions such as irradiance intensity and temperature. The MPPT algorithm applied to solar system keep the boost converter output constant. Output from boost converter is taken to three phase impedance-source inverter with RL load and grid system. Impedance-source inverter performs the transformation of variable DC output of the solar system in to near sinusoidal AC output. This near sinusoidal AC output consecutively is served to the RL load first and then to grid system. The simulation is carried out in matlab/simulink platform both for RL load and grid system and the simulation results are experimentally validated for RL load arrangement only.

Sign in / Sign up

Export Citation Format

Share Document