基于模糊控制的泵類負(fù)載節(jié)能調(diào)速系統(tǒng)研究
發(fā)布時間：2018-10-24 21:14
【摘要】：關(guān)系到國家安全人民生活的能源是國計民生的重點,能源是緊急的命脈和持續(xù)發(fā)展的動力。中國總的能源利用效率僅為10%左右,這僅是發(fā)達(dá)國家的50%,在存儲和生產(chǎn)中損耗過程的能量是轉(zhuǎn)換剩余量的90%,到達(dá)終端設(shè)備,只占了10%,能源利用效率非常低下。近年來頻頻出現(xiàn)的“電荒",不僅耽誤企業(yè)正常生產(chǎn),也造成我國每年浪費占GDP5%的資源,由此造成的損失占我國GDP的10%。對上述兩類進(jìn)行統(tǒng)計,每年損失的能源在兩萬億人民幣,這是相當(dāng)觸目驚心的。因此,對于節(jié)能的研究是非常有意義的,帶來的經(jīng)濟(jì)收益是非常巨大的。對于企業(yè),能源的浪費間接造成了能源成本的上升,導(dǎo)致效率低下,因此企業(yè)越來越多的關(guān)注其設(shè)備的節(jié)能性,并把節(jié)能視作高盈利能力的關(guān)鍵。根據(jù)統(tǒng)計,65%的工業(yè)能耗來自于電機(jī),因此電機(jī)研究電機(jī)的節(jié)能,毫無疑問成為解決問題的關(guān)鍵。本文首先對普通恒定供水系統(tǒng)中水泵能耗原理及電機(jī)損耗進(jìn)行分析了研究,從理論上分析了水泵類負(fù)載的負(fù)載特性,通過水泵流量、揚(yáng)程、功率與水泵電機(jī)轉(zhuǎn)速的關(guān)系得出泵類負(fù)載的節(jié)能方法;其次分析了當(dāng)前主流的恒壓供水系統(tǒng)的控制方法;最后,在此基礎(chǔ)上提出使用模糊PID控制方案,得到高效實用的控制策略和算法,以提高電機(jī)的節(jié)能性能、提高供水管網(wǎng)壓力控制的穩(wěn)態(tài)精度,該控制器能自動適應(yīng)用戶用水量的變化。同時,本文使用MATLAB軟件建立了供水系統(tǒng)的控制模型,并進(jìn)行仿真研究。并與經(jīng)典的PID控制器和模糊PID控制器相比較,我們可以看到選用模糊PID控制器仿真得到的控制系統(tǒng)各項動態(tài)指標(biāo)以及系統(tǒng)的抗干擾能夠完全符合系統(tǒng)的設(shè)計要求,并且優(yōu)于經(jīng)典的PID控制器。在論文的第五章,介紹了變頻恒壓供水節(jié)能系統(tǒng)的硬件和軟件系統(tǒng)設(shè)計原理和方法,第五章最后,將模糊PID控制器在實際的硬件平臺上運行,測試�？梢钥吹�,模糊PID控制器不僅能夠滿足理論設(shè)計要求,而且具有實際的可行性。
[Abstract]:The energy which relates to the national security people's life is the key of national economy and people's livelihood, and energy is the urgent lifeline and the motive force of sustainable development. The total energy utilization efficiency of China is only about 10%, which is only 50% of that of developed countries. The energy lost in the process of storage and production is 90% of the remaining amount, and only 10% of the terminal equipment is reached. The efficiency of energy utilization is very low. In recent years, the frequent "electricity shortage" has not only delayed the normal production of enterprises, but also caused the waste of GDP5% resources every year in our country, resulting in losses of 10% of GDP in our country. For the above two categories of statistics, the annual energy loss of 2 trillion yuan, this is quite shocking. Therefore, the energy-saving research is very meaningful, the economic benefits are very huge. For enterprises, energy waste indirectly causes the increase of energy cost and leads to inefficiency. Therefore, enterprises pay more and more attention to the energy saving of their equipment, and regard energy conservation as the key to high profitability. According to statistics, 65% of industrial energy consumption comes from motor, so the research of motor energy saving is undoubtedly the key to solve the problem. In this paper, the principle of pump energy consumption and motor loss in general constant water supply system are analyzed, and the load characteristics of pump load are theoretically analyzed. The relationship between the power and the speed of the pump motor leads to the energy saving method of the pump type load. Secondly, the control method of the current mainstream constant pressure water supply system is analyzed. Finally, a fuzzy PID control scheme is proposed on the basis of the analysis of the relationship between the power and the rotational speed of the pump motor. An efficient and practical control strategy and algorithm are obtained to improve the energy-saving performance of the motor and the steady-state precision of the pressure control of the water supply network. The controller can automatically adapt to the change of the water consumption of the users. At the same time, the control model of water supply system is established by using MATLAB software, and the simulation research is carried out. Compared with the classical PID controller and the fuzzy PID controller, we can see that the dynamic indexes of the control system obtained by using the fuzzy PID controller and the anti-interference of the system can fully meet the design requirements of the system. And it is superior to the classical PID controller. In the fifth chapter, the design principle and method of the hardware and software of the variable frequency constant pressure water supply and energy saving system are introduced. In the fifth chapter, the fuzzy PID controller is run and tested on the actual hardware platform. It can be seen that the fuzzy PID controller can not only meet the theoretical design requirements, but also have practical feasibility.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU991.35
[Abstract]:The energy which relates to the national security people's life is the key of national economy and people's livelihood, and energy is the urgent lifeline and the motive force of sustainable development. The total energy utilization efficiency of China is only about 10%, which is only 50% of that of developed countries. The energy lost in the process of storage and production is 90% of the remaining amount, and only 10% of the terminal equipment is reached. The efficiency of energy utilization is very low. In recent years, the frequent "electricity shortage" has not only delayed the normal production of enterprises, but also caused the waste of GDP5% resources every year in our country, resulting in losses of 10% of GDP in our country. For the above two categories of statistics, the annual energy loss of 2 trillion yuan, this is quite shocking. Therefore, the energy-saving research is very meaningful, the economic benefits are very huge. For enterprises, energy waste indirectly causes the increase of energy cost and leads to inefficiency. Therefore, enterprises pay more and more attention to the energy saving of their equipment, and regard energy conservation as the key to high profitability. According to statistics, 65% of industrial energy consumption comes from motor, so the research of motor energy saving is undoubtedly the key to solve the problem. In this paper, the principle of pump energy consumption and motor loss in general constant water supply system are analyzed, and the load characteristics of pump load are theoretically analyzed. The relationship between the power and the speed of the pump motor leads to the energy saving method of the pump type load. Secondly, the control method of the current mainstream constant pressure water supply system is analyzed. Finally, a fuzzy PID control scheme is proposed on the basis of the analysis of the relationship between the power and the rotational speed of the pump motor. An efficient and practical control strategy and algorithm are obtained to improve the energy-saving performance of the motor and the steady-state precision of the pressure control of the water supply network. The controller can automatically adapt to the change of the water consumption of the users. At the same time, the control model of water supply system is established by using MATLAB software, and the simulation research is carried out. Compared with the classical PID controller and the fuzzy PID controller, we can see that the dynamic indexes of the control system obtained by using the fuzzy PID controller and the anti-interference of the system can fully meet the design requirements of the system. And it is superior to the classical PID controller. In the fifth chapter, the design principle and method of the hardware and software of the variable frequency constant pressure water supply and energy saving system are introduced. In the fifth chapter, the fuzzy PID controller is run and tested on the actual hardware platform. It can be seen that the fuzzy PID controller can not only meet the theoretical design requirements, but also have practical feasibility.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU991.35
【參考文獻(xiàn)】
相關(guān)期刊論文 前4條
1 胡綱衡,唐瑞球,江志敏,何e，
本文編號：2292576
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