本文選題：永磁機(jī)構(gòu)　切入點：現(xiàn)場可編程門陣列　出處：《中南大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：斷路器是電力系統(tǒng)中的重要設(shè)備,在電力系統(tǒng)線路及設(shè)備的保護(hù)中擔(dān)任著極其重要的角色。永磁機(jī)構(gòu)的出現(xiàn)為斷路器實現(xiàn)智能化操作及高可靠提供了物質(zhì)基礎(chǔ),永磁機(jī)構(gòu)控制器的作用是使配永磁機(jī)構(gòu)斷路器在最佳時機(jī)分合閘,可以大大減小合閘涌流和分閘過電壓。永磁機(jī)構(gòu)控制器采用分立元件設(shè)計,全硬件實現(xiàn),但功能少、性能受限、電路復(fù)雜、缺乏靈活性；采用單片機(jī)設(shè)計,存在飛程序問題,即CPU的指令地址指針在外部干擾下,這種模式容易發(fā)生指令脫離正常軌道使運(yùn)行陷入不可預(yù)測的非法循環(huán)中,為減少這一問題的發(fā)生,需要付出很大的硬件和軟件開銷；采用FPGA是以純硬件的方式實現(xiàn)全部的電子控制功能,沒有任何軟件控制,把一個線路系統(tǒng)放在一片很小的芯片里面,以芯片代替電路板,這個特點非常適合永磁操動機(jī)構(gòu)的控制,是一個先進(jìn)而可靠的方案。 本文在對介紹了課題的研究背景和國內(nèi)外研究現(xiàn)狀的基礎(chǔ)上,分析了永磁機(jī)構(gòu)斷路器的工作原理、分類及其智能控制器的智能選相開關(guān)控制技術(shù),比較了傳統(tǒng)MCU處理器、DSP處理器及以FPGA為核心處理器的控制方式的異同點,論證了設(shè)計基于FPGA的永磁機(jī)構(gòu)斷路器智能控制器方案的可行性并制定了總體設(shè)計方案。以FPGA為控制器核心處理器,加強(qiáng)了硬件結(jié)構(gòu)的靈活性,使得多種控制算法以及外設(shè)集成在片上系統(tǒng),提高了智能控制器的性能和功能擴(kuò)展性,控制器在硬件以及軟件方面均采用了模塊化設(shè)計,在完成對永磁機(jī)構(gòu)控制的基本功能之外,加入了通信模塊、人機(jī)接口模塊等,讓控制器的數(shù)據(jù)實時性和可操作性大大的提升,在軟件方面,核心控制程序采用了硬件描述語言進(jìn)行編程,并用Matlab進(jìn)行了分合閘模塊進(jìn)行了理想化建模仿真,詳細(xì)介紹了控制器各個模塊的設(shè)計原理及其功能實現(xiàn)。 最后,在課題組實驗室調(diào)試環(huán)境下,對永磁機(jī)構(gòu)智能控制器,進(jìn)行了調(diào)試和試驗。試驗結(jié)果顯示,本文設(shè)計的控制器可完成預(yù)期功能,達(dá)到預(yù)期性能指標(biāo)。圖39幅,表5個,參考文獻(xiàn)70篇
[Abstract]:Circuit breaker is an important equipment in power system, which plays an extremely important role in the protection of power system circuit and equipment. The appearance of permanent magnet mechanism provides material foundation for the circuit breaker to realize intelligent operation and high reliability. The function of the permanent magnet mechanism controller is to make the circuit breaker with permanent magnet mechanism switch off at the best time, which can greatly reduce the inrush current and over-voltage of the switch. The controller of the permanent magnet mechanism is designed by discrete elements and realized by the whole hardware, but the function is less. The performance is limited, the circuit is complex, and the flexibility is not enough. The design of single chip computer has the problem of flying program, that is, the instruction address pointer of CPU is interfered with by external interference. This kind of mode is easy to occur instruction is out of track and makes the operation into an unpredictable illegal cycle. In order to reduce the occurrence of this problem, we need to pay a lot of hardware and software overhead; FPGA is used to realize all electronic control functions in a pure hardware way. Without any software control, a circuit system is placed in a very small chip and a chip is used instead of a circuit board. This feature is very suitable for the control of permanent magnet actuator and is an advanced and reliable scheme. On the basis of introducing the research background of the subject and the current research situation at home and abroad, the working principle, classification and intelligent phase selection switch control technology of the permanent magnet mechanism circuit breaker are analyzed in this paper. The similarities and differences between the traditional MCU processor and the control mode with FPGA as the core processor are compared. The feasibility of designing the intelligent controller of permanent magnet mechanism circuit breaker based on FPGA is demonstrated and the overall design scheme is worked out. The flexibility of hardware structure is enhanced by using FPGA as the core processor of controller. Various control algorithms and peripherals are integrated into the system on the chip, which improves the performance and function expansibility of the intelligent controller. The controller adopts modularization design in both hardware and software. In addition to the basic functions of permanent magnet mechanism control, the communication module and man-machine interface module are added to improve the real-time and maneuverability of the controller. The core control program is programmed with the hardware description language, and the ideal modeling simulation is carried out with Matlab. The design principle and function realization of each module of the controller are introduced in detail. Finally, the intelligent controller of permanent magnet mechanism is debugged and tested in the laboratory debugging environment of the research group. The experimental results show that the controller designed in this paper can accomplish the expected function and achieve the expected performance index. 70 references
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM561;TN791

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本文編號：1558506