【摘要】：近年來(lái),隨著大量非線(xiàn)性、沖擊性負(fù)荷的投入,諧波、電壓暫降等電能質(zhì)量問(wèn)題給電力用戶(hù)帶來(lái)了巨大的經(jīng)濟(jì)損失,也給供電部門(mén)保障電能質(zhì)量帶來(lái)了更嚴(yán)峻的考驗(yàn)。高質(zhì)量的電能對(duì)于保證電網(wǎng)和電氣設(shè)備安全、經(jīng)濟(jì)運(yùn)行,提高產(chǎn)品質(zhì)量和保障居民正常生活有著重要的意義。本文針對(duì)當(dāng)前已經(jīng)頒布國(guó)家標(biāo)準(zhǔn)的電能質(zhì)量問(wèn)題,結(jié)合國(guó)內(nèi)外有關(guān)電能質(zhì)量指標(biāo)檢測(cè)的理論和成果,綜合現(xiàn)有電能質(zhì)量檢測(cè)裝置的優(yōu)缺點(diǎn),設(shè)計(jì)了電能質(zhì)量監(jiān)測(cè)記錄裝置。論文結(jié)構(gòu)如下:文章首先歸納總結(jié)了電能質(zhì)量的概念、分類(lèi)及產(chǎn)生的原因、國(guó)內(nèi)外標(biāo)準(zhǔn)和電能質(zhì)量檢測(cè)等主要問(wèn)題,對(duì)比分析了當(dāng)前各類(lèi)電能質(zhì)量檢測(cè)儀器存在的問(wèn)題。并根據(jù)國(guó)家標(biāo)準(zhǔn)介紹了各項(xiàng)電能質(zhì)量問(wèn)題的概念和指標(biāo)構(gòu)成,結(jié)合IEC標(biāo)準(zhǔn)給出了電能質(zhì)量的檢測(cè)分析方法,研究歸納了電能質(zhì)量各項(xiàng)檢測(cè)指標(biāo)的計(jì)算方法,為電能質(zhì)量檢測(cè)裝置的的設(shè)計(jì)提供了理論依據(jù)和算法指導(dǎo)。硬件方面,結(jié)合設(shè)計(jì)目標(biāo)和GB/T 19862-2005《電能質(zhì)量監(jiān)測(cè)設(shè)備通用要求》,確定了電能質(zhì)量監(jiān)測(cè)記錄裝置的系統(tǒng)結(jié)構(gòu),設(shè)計(jì)了以32位浮點(diǎn)型DSP TMS320F28335為處理器核心的硬件電路,主要包括電壓電流傳感器單元、頻率檢測(cè)與同步采樣電路單元、模數(shù)轉(zhuǎn)換單元、處理器單元、時(shí)鐘單元、以太網(wǎng)控制器、USB2.0控制器、存儲(chǔ)單元和無(wú)線(xiàn)傳輸單元等。軟件方面,在CCS v4.12 DSP程序開(kāi)發(fā)環(huán)境下采用C語(yǔ)言開(kāi)發(fā)了DSP控制計(jì)算程序,文中重點(diǎn)介紹了DSP主程序、采樣子程序、同步信號(hào)異常中斷子程序、SCI接收中斷子程序、以太網(wǎng)控制器初始化子程序和USB控制器程序等。實(shí)驗(yàn)測(cè)試結(jié)果驗(yàn)證了設(shè)計(jì)方案的合理性。系統(tǒng)的各項(xiàng)功能和指標(biāo)達(dá)到了設(shè)計(jì)目標(biāo)。
[Abstract]:In recent years, with a large number of nonlinear, impact load input, harmonics, voltage sag and other power quality problems have brought huge economic losses to power users, but also to the power supply department to ensure power quality has brought a more severe test. High quality electric energy is of great significance to ensure the safety and economic operation of power grid and electrical equipment, improve product quality and ensure the normal life of residents. In order to solve the problem of power quality which has been promulgated at present, combined with the theory and results of power quality index detection at home and abroad, and combining the advantages and disadvantages of the existing power quality detection devices, a power quality monitoring and recording device is designed in this paper. The structure of the paper is as follows: firstly, the concept, classification and causes of power quality, domestic and foreign standards and power quality detection are summarized, and the existing problems of all kinds of power quality detection instruments are compared and analyzed. According to the national standard, the concept and index composition of each power quality problem are introduced, the detection and analysis method of power quality is given according to IEC standard, and the calculation method of power quality detection index is studied and summarized. It provides theoretical basis and algorithm guidance for the design of power quality detection device. In the aspect of hardware, combined with the design goal and GB/T 19862 / 2005 "General requirements of Power quality Monitoring equipment", the system structure of power quality monitoring and recording device is determined, and the hardware circuit with 32-bit floating point DSP TMS320F28335 as the processor core is designed. It mainly includes voltage and current sensor unit, frequency detection and synchronous sampling circuit unit, analog-to-digital conversion unit, processor unit, clock unit, Ethernet controller, USB2.0 controller, memory unit and wireless transmission unit. In the aspect of software, the DSP control calculation program is developed with C language under the environment of CCS v4.12 DSP program development. This paper focuses on the main program of DSP, the sampling program, the abnormal interrupt subroutine of synchronous signal, and the interrupt subroutine received by SCI. Ethernet controller initialization subroutine and USB controller program and so on. The experimental results verify the rationality of the design scheme. The functions and indicators of the system have achieved the design objectives.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM933.4

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