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Research of Residential Photovoltaic Grid-connected Inverter Based on SOPC

Author: LiuZhiMing
Tutor: GuoBaoZeng
School: Hebei University
Course: Circuits and Systems
Keywords: Photovoltaic grid-connected inverter Programmable System on Chip Field Programmable Gate Array Nios Ⅱ
CLC: TM464
Type: Master's thesis
Year: 2011
Downloads: 43
Quote: 0
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With traditional fossil energy depletion , environmental pollution is worsening , and human environmental awareness , solar energy as an environmentally friendly energy has become the world an important part of the energy strategy . Numerous applications in the solar photovoltaic power generation technology is one of the most promising become mainstream solar applications . Inverter as solar power generation an integral part of extensive research . The papers through research based SOPC household photovoltaic grid-connected inverter system , in-depth analysis of the current photovoltaic grid structure and system of the composition of the inverter control algorithms . On this basis , an important part of the inverter based on SOPC design , simulation and various parts . This article first briefly introduce several methods of maximum power point tracking , detailed analysis of the variable step size optimization method . Variable step size optimization method , and this functional simulation using Verilog HDL . The MPPT portion of the PWM signal driving circuit, and simulation in software , Multisim10.0 . The design of the inverter control portion . Using the DC voltage of the outer ring and to net current double-loop control of the inner ring structure . The designed PLL module , PI module , the sine wave generator module , SPWM module , and each module simulation . The study analyzed the principle of active energy metering , energy metering section is designed . To achieve a high and low pass filters , multipliers , digital - frequency converter module using Verilog HDL , the whole measurement part of the simulation . Inverter monitoring communication module design . NIOS Ⅱ the GSM equipment control , inverter monitoring communication module . With this module , the inverter fault signal can be sent to the control center , and the generating capacity of the network system .

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter > Inverter
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