發(fā)布時(shí)間：2018-03-19 00:21

  本文選題：斷路器　切入點(diǎn)：低壓配電　出處：《沈陽(yáng)工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著電網(wǎng)的快速發(fā)展,人們對(duì)低壓配電設(shè)備也提出了更高的要求。由于智能電網(wǎng)的大面積興起,傳統(tǒng)低壓配電設(shè)備已不能完全滿足客戶需要,智能低壓配電系統(tǒng)的發(fā)展已成為必然趨勢(shì)。遠(yuǎn)距離監(jiān)控、及時(shí)的信息傳遞、快速的故障查找、高效安全已成為智能低壓配電系統(tǒng)的發(fā)展方向。而斷路器是電網(wǎng)中重要的保護(hù)電器和操作電器,其性能關(guān)系到用電者的人身和財(cái)產(chǎn)安全。隨著社會(huì)生產(chǎn)力的提高,電網(wǎng)智能化的概念正在得到普及,對(duì)低壓斷路器智能控制器的研究得到越來(lái)越多的關(guān)注。首先,根據(jù)文獻(xiàn)列舉了傳統(tǒng)的低壓配電設(shè)備情況,通過(guò)分析指出了傳統(tǒng)低壓配電設(shè)備不足之處,闡述了智能斷路器在配電保護(hù)系統(tǒng)中應(yīng)用的優(yōu)勢(shì),并在此基礎(chǔ)上研究了智能控制器的計(jì)量原理和配電保護(hù)等基礎(chǔ)技術(shù)。其次,設(shè)計(jì)出了基于CAN總線智能斷路器控制系統(tǒng)的總體方案。設(shè)計(jì)實(shí)現(xiàn)了系統(tǒng)單片機(jī)主控模塊、電源模塊、漏電保護(hù)模塊、撥碼開(kāi)關(guān)設(shè)定模塊、CAN總線通信模塊等硬件電路。詳細(xì)闡述系統(tǒng)各模塊電路的組成原理和實(shí)現(xiàn)方法,給出了整個(gè)電路系統(tǒng)的原理圖,并對(duì)硬件系統(tǒng)抗干擾措施進(jìn)行具體介紹。然后,闡述了軟件的總體設(shè)計(jì)思想,結(jié)合硬件電路,設(shè)計(jì)實(shí)現(xiàn)系統(tǒng)的底層程序,詳細(xì)敘述了系統(tǒng)自生電源模塊、漏電處理模塊、電流三段保護(hù)程序(過(guò)載長(zhǎng)延時(shí)保護(hù)、短路短延時(shí)保護(hù)和短路瞬動(dòng)保護(hù))和CAN通信程序(接收數(shù)據(jù)和發(fā)送數(shù)據(jù))的具體實(shí)現(xiàn)方法,給出了系統(tǒng)軟件設(shè)計(jì)流程圖,之后對(duì)軟件抗干擾措施進(jìn)行了介紹。最后,使用Microchip公司的MPLABXC8集成開(kāi)發(fā)環(huán)境,對(duì)系統(tǒng)程序進(jìn)行反復(fù)調(diào)試,基于Proteus對(duì)自生電源模塊進(jìn)行調(diào)試,之后給出了過(guò)載長(zhǎng)延時(shí)、短路短延時(shí)、瞬時(shí)保護(hù)仿真試驗(yàn)結(jié)果,以及對(duì)后續(xù)通信功能進(jìn)行了詳細(xì)描述和實(shí)驗(yàn)結(jié)果的誤差進(jìn)行分析,驗(yàn)證了系統(tǒng)的功能。
[Abstract]:With the rapid development of power grid, people also put forward higher requirements for low-voltage distribution equipment. Because of the rise of smart grid, the traditional low-voltage distribution equipment can not fully meet the needs of customers. The development of intelligent low-voltage distribution system has become an inevitable trend. Remote monitoring, timely information transmission, rapid fault finding, High efficiency and safety have become the development direction of intelligent low voltage distribution system, and circuit breaker is an important protective and operating appliance in power grid. Its performance is related to the safety of person and property of power user. With the improvement of social productivity, The concept of intelligent power grid is getting more and more popular, and the research on intelligent controller of low-voltage circuit breaker has been paid more and more attention. Firstly, according to the literature, the traditional low-voltage distribution equipment is listed. This paper points out the shortcomings of traditional low-voltage distribution equipment, expounds the advantages of intelligent circuit breaker in distribution protection system, and studies the measuring principle of intelligent controller and the basic technology of distribution protection. The overall scheme of intelligent circuit breaker control system based on CAN bus is designed, and the main control module, power supply module and leakage protection module of the system are designed and realized. The hardware circuits such as can bus communication module and so on are described in detail. The principle and realization method of each module circuit of the system are described in detail, and the schematic diagram of the whole circuit system is given. The anti-interference measures of the hardware system are introduced in detail. Then, the overall design idea of the software is expounded, the bottom program of the system is designed and realized by combining the hardware circuit, and the self-generated power supply module and the leakage processing module are described in detail. The realization methods of three-stage current protection program (overload long delay protection, short circuit short delay protection and short circuit transient protection) and CAN communication program (receiving and transmitting data) are given, and the system software design flow chart is given. Finally, the software anti-interference measures are introduced. Finally, the system program is debugged repeatedly using the MPLABXC8 integrated development environment of Microchip Company, and the self-generated power module is debugged based on Proteus. After that, the long overload delay, short circuit and short delay are given. The simulation results of instantaneous protection and the error analysis of the subsequent communication function are described in detail, and the function of the system is verified.
【學(xué)位授予單位】：沈陽(yáng)工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM561;TM64

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