【摘要】：能源危機(jī)是當(dāng)代社會(huì)發(fā)展面臨的主要問(wèn)題之一,日趨嚴(yán)重的能源危機(jī)和環(huán)境危機(jī),迫切需要我們加快對(duì)新能源產(chǎn)業(yè)發(fā)展,同時(shí)新能源也屬于環(huán)境友好型資源,符合可持續(xù)發(fā)展的時(shí)代特征。因此對(duì)儲(chǔ)能逆變器等該類分布式發(fā)電設(shè)備進(jìn)行大量的投資研發(fā)意義重大。為加快儲(chǔ)能逆變器的研發(fā)進(jìn)程,保證設(shè)備輸出電能的質(zhì)量,系統(tǒng)的測(cè)試和調(diào)試平臺(tái)就顯得更加的重要。雖然傳統(tǒng)的軟件調(diào)試平臺(tái)能夠基本滿足測(cè)試要求,但隨著新能源電力電子設(shè)備的多樣化,控制程序算法的復(fù)雜化,需要測(cè)試平臺(tái)能獲取更多的數(shù)據(jù),對(duì)數(shù)據(jù)的傳輸速率要求也越來(lái)越快,同時(shí)要求測(cè)試系統(tǒng)具有諧波分析、效率分析、程序中間變量監(jiān)測(cè)和歷史數(shù)據(jù)保存等更多實(shí)用的功能。因此本文針對(duì)現(xiàn)在測(cè)試軟件平臺(tái)的不足,為儲(chǔ)能逆變器設(shè)備研究開(kāi)發(fā)了新的測(cè)試軟件。首先,本文對(duì)儲(chǔ)能逆變器的整體結(jié)構(gòu)和控制結(jié)構(gòu)及拓?fù)渥髁嗽敿?xì)的介紹。分析了儲(chǔ)能逆變器的控制流程后,給出了儲(chǔ)能逆變器的測(cè)試需求,引出了設(shè)計(jì)儲(chǔ)能逆變器測(cè)試軟件平臺(tái)的必要性和重要意義。根據(jù)儲(chǔ)能逆變器測(cè)試系統(tǒng)的結(jié)構(gòu)特點(diǎn)和測(cè)試需求,設(shè)計(jì)儲(chǔ)能逆變器測(cè)試軟件平臺(tái)實(shí)現(xiàn)方案,并和儲(chǔ)能逆變器本身的控制系統(tǒng)進(jìn)行無(wú)縫結(jié)合,構(gòu)建一個(gè)功能完整的測(cè)試軟件平臺(tái)。然后,對(duì)基于頻域的快速離散傅立葉變換中的基2 FFT算法進(jìn)行討論研究,通過(guò)加窗減少了頻譜泄漏和柵欄效應(yīng)的影響,提高了計(jì)算精度。針對(duì)FFT算法運(yùn)算量大的問(wèn)題,分析了兩種減少運(yùn)算量的措施,進(jìn)一步提高了測(cè)試軟件平臺(tái)的對(duì)諧波檢測(cè)的實(shí)時(shí)性。研究使用了三相交流瞬時(shí)功率的計(jì)算方法,給出了測(cè)試軟件平臺(tái)中對(duì)儲(chǔ)能逆變器的效率計(jì)算方法。為保證通信速率研究并使用基于UDP/IP的協(xié)議,設(shè)計(jì)儲(chǔ)能逆變器測(cè)試軟件平臺(tái)的通信協(xié)議。最后,在理論研究的基礎(chǔ)上,針對(duì)儲(chǔ)能逆變器測(cè)試軟件平臺(tái)的實(shí)現(xiàn)過(guò)程進(jìn)行了探討分析。先從總體上給出了儲(chǔ)能逆變器測(cè)試軟件平臺(tái)的架構(gòu),然后對(duì)功能模塊進(jìn)行劃分,接著對(duì)各個(gè)功能模塊作簡(jiǎn)要分析后,給出了各功能模塊的實(shí)現(xiàn)方法,對(duì)各個(gè)功能模塊給出了相應(yīng)的結(jié)構(gòu)框圖或軟件流程圖。儲(chǔ)能逆變器測(cè)試軟件平臺(tái)設(shè)計(jì)完成后,對(duì)平臺(tái)的各模塊進(jìn)行了單模塊功能測(cè)試分析。最后,給出了儲(chǔ)能逆變器測(cè)試軟件平臺(tái)與儲(chǔ)能逆變器進(jìn)行了現(xiàn)場(chǎng)聯(lián)機(jī)調(diào)試的情況,驗(yàn)證了該測(cè)試軟件平臺(tái)的設(shè)計(jì)方案可行。
[Abstract]:Energy crisis is one of the main problems facing contemporary social development. With the increasingly serious energy crisis and environmental crisis, it is urgent for us to accelerate the development of new energy industry. At the same time, new energy is also an environment-friendly resource. In line with the characteristics of the era of sustainable development. Therefore, it is of great significance to invest a lot in the research and development of this kind of distributed power generation equipment, such as energy storage inverter. In order to speed up the research and development of energy storage inverter and ensure the output power quality of the equipment, the testing and debugging platform of the system becomes more and more important. Although the traditional software debugging platform can basically meet the test requirements, with the diversification of the new energy power electronic equipment and the complexity of the control program algorithm, the test platform is required to obtain more data. At the same time, the test system is required to have more and more practical functions such as harmonic analysis, efficiency analysis, program intermediate variable monitoring and historical data preservation. Therefore, aiming at the deficiency of current testing software platform, this paper develops a new testing software for energy storage inverter equipment research. Firstly, the whole structure and control structure and topology of energy storage inverter are introduced in detail. After analyzing the control flow of the energy storage inverter, the test requirements of the energy storage inverter are given, and the necessity and significance of designing the test software platform for the energy storage inverter are presented. According to the structural characteristics and test requirements of the test system for energy storage inverter, a software platform for energy storage inverter test is designed, which is seamlessly combined with the control system of energy storage inverter to construct a test software platform with complete function. Then, the fundamental 2-FFT algorithm in fast discrete Fourier transform (FFT) based on frequency domain is discussed and studied. By windowing, the influence of spectrum leakage and fence effect is reduced, and the calculation precision is improved. In order to solve the problem of large computational complexity of FFT algorithm, this paper analyzes two measures to reduce the computational complexity, and further improves the real-time performance of the testing software platform for harmonic detection. The calculation method of three-phase AC instantaneous power is studied, and the efficiency calculation method of energy storage inverter in the test software platform is given. In order to guarantee the communication rate and use the protocol based on UDP/IP, the communication protocol of the test software platform of energy storage inverter is designed. Finally, on the basis of theoretical research, the realization process of the test software platform for energy storage inverter is discussed and analyzed. Firstly, the architecture of the testing software platform for energy storage inverter is given, then the functional modules are divided, and then the implementation methods of each functional module are given after a brief analysis of each functional module. The corresponding structure block diagram or software flowchart is given for each function module. After the design of the test software platform for energy storage inverter is completed, the single module function test analysis of each module of the platform is carried out. Finally, the test software platform of energy storage inverter and the on-site debugging of energy storage inverter are given, and the feasibility of the design scheme of the test software platform is verified.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP311.52;TM464

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本文編號(hào)：2456040