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| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘 要:在世界各國競相發(fā)展綠色可再生能源的今天，太陽能憑其獨(dú)特的優(yōu)點(diǎn)，受到了一致青睞，在太陽能的各種應(yīng)用中，光伏應(yīng)用倍受關(guān)注。隨著光伏組件價(jià)格的不斷降低和光伏技術(shù)的發(fā)展，太陽能光伏發(fā)電系統(tǒng)將逐漸由現(xiàn)在的補(bǔ)充能源向替代能源過渡。獨(dú)立發(fā)電系統(tǒng)和并網(wǎng)發(fā)電系統(tǒng)將成為光伏應(yīng)用的主流，逆變技術(shù)是其中的核心技術(shù)之一。本課題針對并網(wǎng)逆變原理及并網(wǎng)逆變控制策略的特殊技術(shù)要求，主要設(shè)計(jì)光伏逆變器的硬件設(shè)計(jì)和研究新型的控制策略。 本文首先分析了光伏發(fā)電系統(tǒng)的組成，介紹了并網(wǎng)發(fā)電型的特點(diǎn)。詳細(xì)闡述了發(fā)電系統(tǒng)中蓄電池充電器的設(shè)計(jì)，并且對常用的幾種MPPT控制技術(shù)的原理進(jìn)行了介紹和比較。 重點(diǎn)是對單相光伏發(fā)電并網(wǎng)逆變器的軟硬件設(shè)計(jì)，制作了一個(gè)模擬樣本。該樣本采用Microchip公司的PIC16F73芯片控制，仿真了產(chǎn)生PWM波的過程，并給出了程序。 關(guān)鍵詞：太陽能 蓄電池 MPPT 逆變器 PWM
ABSTRACT:In countries all over the world compete to develop green renewable energy, solar energy with its unique advantages, has received the consistent favour, in the various applications of solar energy, photovoltaic (pv) application is concerned. With photovoltaic component prices falling and the development of photovoltaic technology, solar photovoltaic power generation system will be gradually by the additional energy to make the transition to alternative energy now. Independent power generation system and the application will become the mainstream of photovoltaic (pv) grid power system, inverter technology is one of the core technology. This topic in view of the grid inverter principle and special technical requirements of the grid inverter control strategy, the main design of photovoltaic inverter hardware design and research the new control strategy. This paper first analyzes the composition of photovoltaic power generation system, introduces the characteristics of the grid type. In this paper, the battery charger design, power system and the principle of several commonly used MPPT control technology are introduced and compared. Focus is on software and hardware design of single-phase grid-connected photovoltaic inverter, made a simulation sample. The sample is controlled by Microchip company PIC16F73 chip, simulating the process of producing PWM wave, and the program is given. Key words: solar energy; storage battery;MPPT; inverter;PWM |
