【摘要】：微網(wǎng)作為解決在電力系統(tǒng)中利用分布式電源存在問題的有效方式受到了廣泛研究。本文研究了一種帶有電路切換機(jī)構(gòu)的基于交直流混合微網(wǎng)的能量管理系統(tǒng),并設(shè)計(jì)了相應(yīng)的能量管理方法。本文的主要工作內(nèi)容如下:(1)研究了一種帶有電路切換機(jī)構(gòu)的基于交直流混合微網(wǎng)的能量管理系統(tǒng),同時(shí)結(jié)合了交流微網(wǎng)和直流微網(wǎng)的優(yōu)勢,在直流微網(wǎng)內(nèi)對(duì)分布式電源進(jìn)行整合管理,在交流微網(wǎng)內(nèi)實(shí)施負(fù)荷側(cè)管理控制。本文提出的系統(tǒng)由于在交流微網(wǎng)內(nèi)配置用于負(fù)荷控制的開關(guān)陣列,從而相較于其他微網(wǎng)系統(tǒng)多出一種工作模式,使得該能量管理系統(tǒng)工作方式更加靈活。(2)建立了能量管理系統(tǒng)的整體模型。能量管理系統(tǒng)集成了分布式電源、儲(chǔ)能單元、交直流功率變換器、負(fù)荷等多種組件,系統(tǒng)的整體模型便由上述組件模型聯(lián)立獲得。(3)針對(duì)能量管理系統(tǒng)的不同工作模式,為了維持系統(tǒng)的功率平衡,保證系統(tǒng)正常運(yùn)行,本文設(shè)計(jì)了相應(yīng)的能量管理方法。針對(duì)不同工作模式下系統(tǒng)功率平衡方程,系統(tǒng)控制中心控制系統(tǒng)各組件的協(xié)調(diào)配合。然后在仿真環(huán)境中對(duì)能量管理方法進(jìn)行了仿真驗(yàn)證。研究結(jié)果表明,帶有電路切換機(jī)構(gòu)的基于交直流混合微網(wǎng)的能量管理方法在系統(tǒng)穩(wěn)定運(yùn)行的情況下能夠?qū)崿F(xiàn)分布式電源高效率的整合利用和負(fù)荷側(cè)的負(fù)荷控制,通過開關(guān)切換可以自主的進(jìn)行需求側(cè)管理。
[Abstract]:As an effective way to solve the problem of distributed power generation in power system, microgrid has been widely studied. In this paper, an energy management system based on AC / DC hybrid microgrid with circuit switching mechanism is studied, and the corresponding energy management method is designed. The main work of this paper is as follows: (1) an energy management system based on AC / DC hybrid microgrid with circuit switching mechanism is studied, which combines the advantages of AC microgrid and DC microgrid. Distributed power supply is integrated in DC microgrid and load side management is implemented in AC microgrid. In this paper, the switching array for load control is arranged in the AC microgrid, which has one more working mode than other microgrid systems. It makes the energy management system more flexible. (2) the overall model of the energy management system is established. The energy management system integrates distributed power generation, energy storage unit, AC / DC power converter, load and other components, and the whole model of the system is obtained by the above component model. (3) aiming at the different working modes of the energy management system, In order to maintain the power balance of the system and ensure the normal operation of the system, a corresponding energy management method is designed in this paper. According to the system power balance equations under different working modes, the coordination of the components of the system control center is presented. Then, the energy management method is simulated and verified in the simulation environment. The results show that the energy management method based on AC / DC hybrid microgrid with circuit switching mechanism can realize high efficiency integration of distributed power supply and load control of load side under the condition of stable operation of the system. Demand side management can be done independently through switch switching.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM73

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本文編號(hào)：2197814