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The Research of Control Strategy of the Photovoltaic Energy System Used in Households

Author: DongBo
Tutor: LiYan；WangShengHui
School: Shenyang University of Technology
Course: Motor and electrical
Keywords: Solar PV Grid Fuzzy Logic Control MPPT Phase-locked loop DSP MATLAB / simulink simulation
CLC: TM615
Type: Master's thesis
Year: 2011
Downloads: 152
Quote: 0
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Abstract


Currently, the major issue of the energy crisis and environmental pollution on a global scale are interesting countries in the world are looking for a not only solve the problem of energy reserves , but will not bring green energy to environmental pollution . Solar energy as an important component of the new energy members , its biggest feature is inexhaustible and pollution-free , so in recent years , the importance attached by the parties to the rapid development of the main forms of electricity generation for grid-connected PV . A lot of information , solar energy will be the most important in people's lives channels in the near future . At this stage, subject to solar energy utilization have led to the use of high cost and can not be universal , based on this , this paper introduces the fuzzy logic control theory , the fuzzy logic control box using MATLAB software to design a three-dimensional and two-dimensional fuzzy logic controller , and the use of simulink simulation for photovoltaic maximum power point tracking , MPPT simulation results by comparing the difference in the stability, accuracy and fast analysis of the reasons , to the maximum extent possible to promote the utilization of solar energy . Designed without isolation transformer Boost DC-DC converter , the system requirements within the scope of the regulator , the simulation output to meet the requirements ; single-phase PV inverter working principle and control strategy , and the simulation output sinusoidal AC voltage with good results . Application software control PI regulator control , after analysis of a phase-locked loop control technology , and applied to the inverter circuit , grid current and grid voltage the same frequency and phase . Finally, the design of complete power generation system based on DSP chip TMS320F2812 PV and simulation of the entire system through MATLAB / simulink simulation results meet the requirements , while the development of a photovoltaic system controller , and conducted a preliminary experiment .

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Variety of power generation > Solar power
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