本文選題：潮流能發(fā)電系統(tǒng) + 電力電子負(fù)載�。� 參考：《中國海洋大學(xué)》2014年碩士論文

【摘要】：隨著社會快速發(fā)展，人們對能源的需求也在持續(xù)增加。伴隨著人們的大量使用傳統(tǒng)化石能源，其儲量也在日益減少而傳統(tǒng)化石能源的大量使用也造成環(huán)境污染的進(jìn)一步加重。為了減少人們對環(huán)境的破壞并且能夠得到長期穩(wěn)定的能源供應(yīng)，大力發(fā)展新能源是解決上述問題的關(guān)鍵。世界各大能源國都在積極改善自己的能源結(jié)構(gòu)，開發(fā)利用各種綠色可再生能源。海洋潮流具有很強(qiáng)的規(guī)律性并且潮流能儲量豐富,受到世界各個國家的重視。本論文通過電力電子負(fù)載設(shè)計來探究與評估潮流能。 本文闡述了電力電子負(fù)載在20kW潮流能發(fā)電系統(tǒng)中的作用，確定了電力電子負(fù)載系統(tǒng)的整體結(jié)構(gòu)。然后從電力電子負(fù)載主回路入手，闡述了主回路拓?fù)浣Y(jié)構(gòu)以及分段式負(fù)載控制的思想。并通過公式計算、參數(shù)比較、系統(tǒng)要求確定系統(tǒng)所用器件。 論述了電力電子開關(guān)的PWM控制原理，并進(jìn)行控制算法的設(shè)計。本論文所設(shè)計的電力電子負(fù)載在控制功能方面具有恒功率控制、恒流控制、恒壓控制、恒阻控制。在電力電子負(fù)載設(shè)計階段通過搭建Matlab/Simulink仿真模型，對所設(shè)計主回路以及控制算法進(jìn)行仿真驗(yàn)證。 在軟件設(shè)計方面首先明確了潮流能發(fā)電系統(tǒng)各個工況之間的轉(zhuǎn)換流程。根據(jù)潮流能發(fā)電系統(tǒng)要求設(shè)計了符合我們控制需要的恒功率控制方案。然后通過本地觸摸屏軟件的設(shè)計，，使我們在現(xiàn)場能夠直觀的看到水下機(jī)組與岸上電力電子負(fù)載的運(yùn)行情況。遠(yuǎn)程GPRS通信的設(shè)計使我們可以在實(shí)驗(yàn)室當(dāng)中觀測現(xiàn)場設(shè)備的運(yùn)行情況。 潮流能發(fā)電系統(tǒng)對系統(tǒng)的穩(wěn)定性提出了更高的要求。如何設(shè)計出一套比較全面的測試方案，驗(yàn)證潮流能發(fā)電系統(tǒng)的穩(wěn)定性，也是本論文的一個研究方向。本論文通過設(shè)計加載實(shí)驗(yàn)與密封測試實(shí)驗(yàn)，全面檢測系統(tǒng)的穩(wěn)定性，為后續(xù)海上實(shí)驗(yàn)打下堅實(shí)的基礎(chǔ)。
[Abstract]:With the rapid development of society, the demand for energy is also increasing. With the extensive use of traditional fossil energy, its reserves are decreasing day by day, and the extensive use of traditional fossil energy has further aggravated the environmental pollution. In order to reduce the damage to the environment and to obtain a stable energy supply for a long time, developing new energy is the key to solve the above problems. All the major energy countries in the world are actively improving their energy structure and developing and utilizing all kinds of green renewable energy. Ocean tidal current has strong regularity and rich tidal energy reserves, so it has been paid attention to by all countries in the world. In this paper, power electronic load design is used to explore and evaluate power flow energy. In this paper, the function of power electronic load in 20kW power flow power generation system is expounded, and the whole structure of power electronic load system is determined. Then, starting with the power electronic load main loop, the topological structure of the main loop and the idea of segmented load control are expounded. Through formula calculation and parameter comparison, the system needs to determine the devices used in the system. The PWM control principle of power electronic switch is discussed, and the control algorithm is designed. The power electronic load designed in this paper has constant power control, constant current control, constant voltage control and constant resistance control. In the stage of power electronic load design, the main loop and control algorithm are simulated and verified by building Matlab/Simulink simulation model. In the aspect of software design, the conversion flow between different working conditions of power generation system is defined. According to the requirements of power flow power generation system, a constant power control scheme is designed to meet our control needs. Then through the design of the local touch screen software, we can see the operation of the underwater unit and the power electronic load on the shore directly in the field. The design of remote GPRS communication enables us to observe the operation of field equipment in the laboratory. The stability of the power flow power generation system is higher than that of the power generation system. How to design a comprehensive test scheme to verify the stability of power flow power generation system is also a research direction in this paper. In this paper, the stability of the system is tested by designing the loading experiment and the seal test experiment, which lays a solid foundation for the subsequent offshore experiment.
【學(xué)位授予單位】：中國海洋大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM31

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