無功補(bǔ)償裝置設(shè)計

電氣自動化論文編號:ZD310  論文字?jǐn)?shù):13445,頁數(shù):44 

目 錄
第1章 緒 論 1
1.1 無功補(bǔ)償裝置的背景及發(fā)展趨勢 1
1.1.1 無功補(bǔ)償裝置的現(xiàn)狀 1
1.1.2 無功補(bǔ)償裝置的發(fā)展趨勢 1
1.2 無功功率補(bǔ)償?shù)囊饬x 1
1.3 無功補(bǔ)償裝置實(shí)際應(yīng)用意義 2
1.4 無功補(bǔ)償裝置的作用 2
1.5 實(shí)現(xiàn)的方法與手段 2
第2章 總體設(shè)計 4
第3章 可控硅電路的設(shè)計 6
3.1 觸發(fā)電路 6
3.2 電力電容器的選擇 6
3.3 晶閘管投切電容器的結(jié)構(gòu)與原理 8
第4章 CPU最小系統(tǒng)設(shè)計 10
4.1 單片機(jī)選型 10
4.1.1 單片機(jī)80C196KC介紹 10
4.1.2 80C196KC芯片封裝圖 11
4.2 檢測電路 12
4.2.1 電壓檢測電路 12
4.2.2 電流檢測電路 13
4.3 8017C196KC內(nèi)部結(jié)構(gòu) 14
4.3.1 時鐘電路 15
4.3.2 復(fù)位電路 16
4.4 顯示電路 17
4.5 鍵盤 18
4.6 電源電路 19
4.7 報警電路 20
第5章 系統(tǒng)軟件設(shè)計 22
5.1 主流程圖設(shè)計 22
5.2 自檢掃描流程圖 23
5.3 鍵盤掃描流程圖 24
5.4 電容器控制掃描流程圖 24
第6章 結(jié) 論 26
致 謝 27
參考文獻(xiàn) 28
附 錄Ⅰ 30

摘 要
隨著現(xiàn)代電力電子技術(shù)的發(fā)展,無功補(bǔ)償是涉及電力電子技術(shù)、電力系統(tǒng)、電氣自動化、理論電工等領(lǐng)域的重要課題,也是近年來各方面關(guān)注的熱點(diǎn)之一。本設(shè)計在深入研究國內(nèi)外無功補(bǔ)償裝置的基礎(chǔ)上,提出了一種新型靜止無功補(bǔ)償裝置。 該補(bǔ)償裝置是并聯(lián)型靜止無功補(bǔ)償裝置,由主電路、檢測電路、控制電路、驅(qū)動電路四部分組成。主電路包括并聯(lián)固定補(bǔ)償電容、可變補(bǔ)償電感和GTO器件等。檢測電路通過硬件實(shí)現(xiàn)乘法和加法運(yùn)算,得到實(shí)時補(bǔ)償?shù)臒o功功率大小。控制電路產(chǎn)生PWM脈沖,從而使裝置實(shí)現(xiàn)跟蹤補(bǔ)償。由于補(bǔ)償后的電流與電壓在相位上接近,即補(bǔ)償后的功率因數(shù)接近,所以達(dá)到了靜態(tài)無功功率補(bǔ)償?shù)哪康摹？刂齐娐凡捎昧烁咚俟怦詈掀?使主電路和控制電路隔離,而且還采用了PWM控制技術(shù),在跟蹤補(bǔ)償電網(wǎng)無功功率時,產(chǎn)生的諧波很少。
 關(guān)鍵詞：電力系統(tǒng)；靜止無功補(bǔ)償； 80C196KC

Abstract
With the development of modernPower Electronics Technology,  SVG is an important issue as well as a heated topic that involved in the power electronics technology, power systems Power System, Electric Automation, Theory electricians and other areas, as well as various fields in recent years one of the hot topics. Based on the deep study of SVG from home and abroad, the design presents a new type of SVG. That is, the Porver Parallel SVG, which is made up of four components: the main circuit, detection circuit, control circuit, and Driving Circuit Driving Circuit. Parallel main circuit includes fixed compensation capacitance, inductance, variable compensation and GTO devices. Through hardware, Detection circuit gets the reactive power size of real-time compensation and realizes  the multiplication and addition operations. PWM control circuit pulse, so that the device tracking compensation. As compensation to the current and voltage phase proximity, Compensation is the Power Factor Power Factor close, Therefore, to achieve the static reactive power compensation Static Var Compensator purposes. Control Circuit control circuit using high-speed optocoupler. so that the main circuit and control circuit isolation, but also using the PWM control technology in tracking compensation reactive power grid. The harmonic little.
關(guān)鍵詞： Power System；SVG； 80C196KC