本文選題：超級(jí)電容 + 恒功率��； 參考：《大連理工大學(xué)》2015年碩士論文

【摘要】：隨著社會(huì)經(jīng)濟(jì)高速發(fā)展,能源危機(jī)也日益逼近,因此對(duì)新能源的探索和新儲(chǔ)能技術(shù)研究顯得日益迫切。目前,風(fēng)電、核電和光伏發(fā)電等新能源的探究已取得初步成效,但新能源的高效利用和并網(wǎng)運(yùn)行方面還存在技術(shù)瓶頸,于是對(duì)新儲(chǔ)能技術(shù)方面的研究迫在眉睫。與傳統(tǒng)的儲(chǔ)能載體蓄電池相比,.超級(jí)電容在循環(huán)壽命和充放電效率等方面有著顯著的優(yōu)勢(shì)。如何進(jìn)一步提高超級(jí)電容器能量的高效利用和轉(zhuǎn)換成為了迫切關(guān)注的問(wèn)題,本文針對(duì)上述問(wèn)題,對(duì)超級(jí)電容器的恒功率充放電控制系統(tǒng)展開(kāi)研究。論文首先結(jié)合雙管正激電路對(duì)系統(tǒng)結(jié)構(gòu)方案進(jìn)行設(shè)計(jì),并對(duì)恒功率系統(tǒng)工作原理進(jìn)行分析。針對(duì)雙管正激電路在充電和放電模式下的工作特點(diǎn),對(duì)其電路分別進(jìn)行等效簡(jiǎn)化,并結(jié)合開(kāi)關(guān)管的工作時(shí)序?qū)Φ刃щ娐返母鱾�(gè)工作模態(tài)進(jìn)行詳細(xì)分析,通過(guò)分析為系統(tǒng)平均開(kāi)關(guān)模型建立提供理論依據(jù)。其次,結(jié)合恒功率主拓?fù)潆娐返碾娏鞣逯悼刂?CPM)策略對(duì)其穩(wěn)定性進(jìn)行分析。針對(duì)電路在占空比D50%的情況,提出了在恒功率系統(tǒng)中加入斜坡補(bǔ)償?shù)目刂撇呗?并對(duì)補(bǔ)償后的系統(tǒng)建立了平均開(kāi)關(guān)模型。然后在Matlab/Simulink下對(duì)系統(tǒng)進(jìn)行仿真,并對(duì)補(bǔ)償前后系統(tǒng)仿真波形進(jìn)行對(duì)比,從而驗(yàn)證系統(tǒng)在補(bǔ)償后的啟動(dòng)特性和擾動(dòng)特性有了很大改善,并且達(dá)到了恒功率充放電的控制目標(biāo)。最后,搭建了系統(tǒng)實(shí)驗(yàn)平臺(tái)。在硬件設(shè)計(jì)方面,對(duì)系統(tǒng)的主電路、IGBT驅(qū)動(dòng)電路、斜坡補(bǔ)償電路、電壓和電流采樣電路及其信號(hào)調(diào)理電路進(jìn)行設(shè)計(jì)。在軟件設(shè)計(jì)方面,對(duì)系統(tǒng)主程序、ADC采樣子程序、工作模式選擇子程序、充電和放電子程序進(jìn)行設(shè)計(jì)。通過(guò)實(shí)驗(yàn)平臺(tái)在不同功率點(diǎn)處對(duì)超級(jí)電容進(jìn)行測(cè)試可知,系統(tǒng)達(dá)到了預(yù)期的控制目標(biāo)。
[Abstract]:With the rapid development of social economy, the energy crisis is approaching day by day, so the exploration of new energy and the research of new energy storage technology are becoming more and more urgent. At present, the exploration of new energy, such as wind power, nuclear power and photovoltaic power generation, has made initial achievements, but there are still technical bottlenecks in efficient utilization and grid-connected operation of new energy sources, so it is urgent to study new energy storage technology. Compared with the traditional energy storage carrier battery. Super capacitors have significant advantages in cycle life and charge / discharge efficiency. How to further improve the energy utilization and conversion of supercapacitors has become an urgent concern. In this paper, the constant power charge and discharge control system of supercapacitors is studied. In this paper, the structure of the system is designed based on the dual-transistor forward circuit, and the working principle of the constant power system is analyzed. In view of the working characteristics of dual-transistor forward circuit in charge and discharge mode, the equivalent simplification of the circuit is carried out, and the working modes of the equivalent circuit are analyzed in detail in combination with the working sequence of the switch tube. The analysis provides a theoretical basis for the establishment of the system average switch model. Secondly, the stability of CPM is analyzed by using CPM strategy of constant power main topology circuit. For the case of 50% duty cycle, a slope compensation control strategy is proposed for the constant power system, and an average switching model is established for the compensated system. Then the system is simulated under Matlab/Simulink, and the simulation waveform before and after compensation is compared, which verifies that the start-up and disturbance characteristics of the system after compensation have been greatly improved, and the control goal of constant power charge and discharge has been achieved. Finally, the system experimental platform is built. In the aspect of hardware design, the main circuit of the system, IGBT driving circuit, ramp compensation circuit, voltage and current sampling circuit and signal conditioning circuit are designed. In software design, the main program of system ADC sampling subroutine, working mode selection subroutine, charging and releasing electronic program are designed. By testing the super capacitor at different power points on the experimental platform, the system achieves the desired control goal.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM53

【參考文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

1 周照松;大功率半導(dǎo)體器件在電容儲(chǔ)能脈沖功率源中的特性研究[D];南京理工大學(xué);2010年

2 吳軍;基于UC3846的全橋開(kāi)關(guān)電源的設(shè)計(jì)[D];鄭州大學(xué);2012年

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本文編號(hào)：1819487