本文選題：戶用型光伏并網(wǎng)逆變器　切入點：硬件系統(tǒng)　出處：《東華大學》2014年碩士論文　論文類型：學位論文

【摘要】：近些年,由于全球能源的逐漸緊張和環(huán)境污染的日益嚴重,清潔的可再生的太陽能越來越受到人們的重視,同時太陽能的光電轉(zhuǎn)換技術(shù)也不斷發(fā)展到可以大規(guī)模的應(yīng)用水平了。在未來的時間里,光伏發(fā)電系統(tǒng)的應(yīng)用有著良好的發(fā)展前景。逆變器作為光伏發(fā)電系統(tǒng)的核心能源轉(zhuǎn)換設(shè)備,對它的研究和優(yōu)化具有重要的意義。 本文著重于戶用型光伏并網(wǎng)逆變器硬件系統(tǒng)的研究及優(yōu)化,設(shè)計了一個性能穩(wěn)定的1.5kW戶用型逆變器硬件系統(tǒng)。其主要包括三個部分,即：Boost模塊、功率因數(shù)校正(PFC)模塊、逆變模塊。首先,深入研究Boost電路基本原理,設(shè)計系統(tǒng)的Boost電路結(jié)構(gòu)及元器件參數(shù),利用PSpice建立仿真電路,同時搭建實驗平臺,驗證Boost電路升壓特性。然后,深入分析PFC模塊的原理與作用,設(shè)計出PFC電路并確定該選用的元器件,通過實驗證明了PFC模塊很大程度上提升了系統(tǒng)的工作效率。第三,研究逆變電路的拓撲結(jié)構(gòu)及逆變原理,設(shè)計本系統(tǒng)的逆變電路結(jié)構(gòu),利用Pspice建立仿真電路,搭建實驗平臺,仿真與實驗結(jié)果表明逆變電路達到了很好的效果。這三個模塊的設(shè)計中除了主電路,還要涉及到采樣電路、保護電路、驅(qū)動電路及供電電路的設(shè)計。另外,在系統(tǒng)設(shè)計過程充分考慮到EMC優(yōu)化問題,最大程度上減少電磁干擾對系統(tǒng)帶來的影響。最后,對整個硬件系統(tǒng)進行長時間試驗,系統(tǒng)運行穩(wěn)定,取得了較好的實驗結(jié)果。
[Abstract]:In recent years, due to the global energy shortage and environmental pollution has become increasingly serious, clean renewable solar energy has attracted more and more attention, and the photoelectric conversion technology of solar energy has developed to the level of large-scale application. In the future, the application of photovoltaic power generation system has good prospects for development. As the inverter the core of photovoltaic power generation system energy conversion equipment, is of great significance to study and optimize it.
This paper focuses on the research and optimization of household type photovoltaic grid connected inverter hardware system, designed a stable 1.5kW household type inverter hardware system. It mainly includes three parts, namely: Boost module, power factor correction (PFC) module, inverter module. Firstly, the basic principle of Boost deep into the circuit. The Boost circuit structure and component parameters are designed and built by PSpice simulation circuit, and set up the experimental platform, boosting characteristics of Boost verification. Then, in-depth analysis of the principle and function of the PFC module, PFC circuit design and determine the selection of components, experiments show that the PFC module greatly improves the system's work third. The efficiency of the topology and principle of inverter, inverter circuit, inverter circuit design of this system structure, established by Pspice circuit simulation, the experimental platform is built, the simulation and experimental results Show that the inverter circuit has achieved good results. The design of the three modules in the main circuit, but also relates to the sampling circuit, protection circuit, driving circuit and power supply circuit design. In addition, in the system design process fully taking into account the EMC optimization problem, the maximum extent to reduce the electromagnetic interference on the system. At last bring for a long time, the test of the hardware system, the stable operation of the system, and achieved good results.

【學位授予單位】：東華大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM464

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