基于ARM的太阳能光伏水泵控制系统
发布时间：2019-06-02 18:52
【摘要】：本文提出一种基于嵌入式ARM的太阳能水泵供水控制系统，本控制系统的目的是提高太阳能电池利用效率、提高水泵供水效率和实现节能节水。 为了实现提高太阳能电池利用效率的目的，系统提出利用2个大小功率不同的直流水泵通过3种供水方案运用比较效率法找出最佳供水方案，，依此实现最佳太阳能电池利用率。 为了实现提高水泵供水效率的目的，系统在利用最佳效率追踪法的基础上提出一种电容充放电提高水泵启动电流，延长其工作时间，达到提高水泵工作效率的目的。 为了实现节水、节能的目的，系统提出通过土壤湿度传感器检测的土壤水分信息，由控制器实时控制电磁阀进行灌溉，实现节水、节能的目的。 本文通过对系统各主要和关键技术的分析，提出系统的总体设计方案，并完成系统控制器硬件电路和软件设计，同时完成了试验平台的建立，并对其进行了试验研究，验证了方案的可行性。具体工作如下： ⑴简述了光伏发电技术的发展状况，介绍了国内外光伏水泵技术发展历程，分析了当前光伏水泵控制系统控制原理，提出选用ARM控制器。 ⑵通过分析光伏水泵控制系统控制器结构原理，设计本系统控制器的主控制电路和试验系统控制电路。分析光伏水泵供水系统结构组成和工作原理，建立太阳能水泵供水控制系统。 ⑶进行光频传感器检测试验，运用光辐射强度可以影响光伏电池工作电流和影响光频传感器输出频率，建立光伏电池工作电流和光频传感器的对应关系，利用控制器对光频传感器输出频率的识别，对比光伏电池工作电流，实时向继电器发出闭合和断开指令，启动水泵工作。 ⑷进行供水控制试验，选用功率不同的2个水泵，通过2个水泵的启动时间不同和供水效率的对比，找出提高水泵供水效率的方法。 ⑸进行水泵启动试验，运用电容充放电启动因启动电流过大而延时启动的大功率水泵，提高了大功率水泵的工作时间，提高水泵工作效率。 ⑹进行滴灌控制试验，利用土壤水分传感器对作物土壤水分情况进行测试分析，将数据以频率的形式传输给控制器，控制器再启动水泵实施灌溉，试验节水、节能的目的。 ⑺设计制作了系统的试验，建立了系统试验平台，进行了试验研究，对试验结果进行了分析。
[Abstract]:In this paper, a solar pump water supply control system based on embedded ARM is proposed. The purpose of this control system is to improve the utilization efficiency of solar cells, improve the water supply efficiency of pump and realize energy saving and water saving. In order to improve the utilization efficiency of solar cells, the system proposes to use two DC pumps with different size and power to find out the best water supply scheme by using three kinds of water supply schemes, so as to realize the best utilization rate of solar cells. In order to improve the water supply efficiency of water pump, on the basis of using the best efficiency tracking method, the system puts forward a kind of capacitance charge and discharge method to increase the starting current of pump, prolong its working time, and achieve the purpose of improving the working efficiency of pump. In order to realize the purpose of water saving and energy saving, the soil moisture information detected by soil humidity sensor is put forward, and the solenoid valve is controlled by the controller in real time to realize the purpose of saving water and saving energy. Based on the analysis of the main and key technologies of the system, this paper puts forward the overall design scheme of the system, completes the hardware circuit and software design of the system controller, and completes the establishment of the test platform, and carries on the experimental research to it. The feasibility of the scheme is verified. The concrete work is as follows: 1 the development of photovoltaic power generation technology is briefly described, the development history of photovoltaic pump technology at home and abroad is introduced, the control principle of current photovoltaic pump control system is analyzed, and the selection of ARM controller is put forward. (2) by analyzing the structure principle of photovoltaic pump control system controller, the main control circuit and test system control circuit of the system controller are designed. The structure and working principle of photovoltaic water pump water supply system are analyzed, and the solar water pump water supply control system is established. (3) the detection test of optical frequency sensor is carried out. The working current of photovoltaic cell and the output frequency of optical frequency sensor can be affected by the intensity of light radiation, and the corresponding relationship between the working current of photovoltaic cell and the optical frequency sensor can be established. The controller is used to identify the output frequency of the optical frequency sensor, compare the working current of the photovoltaic cell, send the closing and disconnection instructions to the relay in real time, and start the water pump. (4) the water supply control test is carried out, and two pumps with different power are selected. Through the comparison of the starting time of the two pumps and the water supply efficiency, the methods to improve the water supply efficiency of the pumps are found out. (5) the start-up test of the pump is carried out, and the capacitor charge-discharge is used to start the high-power pump which starts because the starting current is too large, which improves the working time of the high-power pump and improves the working efficiency of the pump. (6) the drip irrigation control experiment was carried out, and the soil moisture status of crops was tested and analyzed by using soil moisture sensor. The data were transmitted to the controller in the form of frequency, and the controller started the pump to irrigate, and the purpose of saving water and saving energy was tested. 7. The system test is designed and made, the system test platform is established, the experimental research is carried out, and the test results are analyzed.
【学位授予单位】：河南农业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH38;TM615
本文编号：2491350
[Abstract]:In this paper, a solar pump water supply control system based on embedded ARM is proposed. The purpose of this control system is to improve the utilization efficiency of solar cells, improve the water supply efficiency of pump and realize energy saving and water saving. In order to improve the utilization efficiency of solar cells, the system proposes to use two DC pumps with different size and power to find out the best water supply scheme by using three kinds of water supply schemes, so as to realize the best utilization rate of solar cells. In order to improve the water supply efficiency of water pump, on the basis of using the best efficiency tracking method, the system puts forward a kind of capacitance charge and discharge method to increase the starting current of pump, prolong its working time, and achieve the purpose of improving the working efficiency of pump. In order to realize the purpose of water saving and energy saving, the soil moisture information detected by soil humidity sensor is put forward, and the solenoid valve is controlled by the controller in real time to realize the purpose of saving water and saving energy. Based on the analysis of the main and key technologies of the system, this paper puts forward the overall design scheme of the system, completes the hardware circuit and software design of the system controller, and completes the establishment of the test platform, and carries on the experimental research to it. The feasibility of the scheme is verified. The concrete work is as follows: 1 the development of photovoltaic power generation technology is briefly described, the development history of photovoltaic pump technology at home and abroad is introduced, the control principle of current photovoltaic pump control system is analyzed, and the selection of ARM controller is put forward. (2) by analyzing the structure principle of photovoltaic pump control system controller, the main control circuit and test system control circuit of the system controller are designed. The structure and working principle of photovoltaic water pump water supply system are analyzed, and the solar water pump water supply control system is established. (3) the detection test of optical frequency sensor is carried out. The working current of photovoltaic cell and the output frequency of optical frequency sensor can be affected by the intensity of light radiation, and the corresponding relationship between the working current of photovoltaic cell and the optical frequency sensor can be established. The controller is used to identify the output frequency of the optical frequency sensor, compare the working current of the photovoltaic cell, send the closing and disconnection instructions to the relay in real time, and start the water pump. (4) the water supply control test is carried out, and two pumps with different power are selected. Through the comparison of the starting time of the two pumps and the water supply efficiency, the methods to improve the water supply efficiency of the pumps are found out. (5) the start-up test of the pump is carried out, and the capacitor charge-discharge is used to start the high-power pump which starts because the starting current is too large, which improves the working time of the high-power pump and improves the working efficiency of the pump. (6) the drip irrigation control experiment was carried out, and the soil moisture status of crops was tested and analyzed by using soil moisture sensor. The data were transmitted to the controller in the form of frequency, and the controller started the pump to irrigate, and the purpose of saving water and saving energy was tested. 7. The system test is designed and made, the system test platform is established, the experimental research is carried out, and the test results are analyzed.
【学位授予单位】：河南农业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH38;TM615
【参考文献】
相关期刊论文 前10条
1 公平;孙佩石;苏建徽;;基于68HC908MR16单片机的光伏水泵控制器的设计[J];中国建设动态.阳光能源;2006年02期
2 杨金焕;邹乾林;谈蓓月;葛亮;陈中华;;各国光伏路线图与光伏发电的进展[J];中国建设动态.阳光能源;2006年04期
3 尹淞;郝继红;;我国太阳能光伏发电技术应用综述[J];电力技术;2009年03期
4 高军武;陶崇勃;;国内外太阳能光伏产业市场状况与发展趋势[J];电气技术;2009年08期
5 刘青荣;顾群音;阮应君;任建兴;龙有二;高伟俊;;日本太阳能光伏发电系统的政策和实例[J];华东电力;2009年02期
6 盛绛;滕国荣;严建华;黄道见;;太阳能光伏水泵在农业方面的应用[J];农机化研究;2008年12期
7 热孜望·坎吉,陈昆仑,刘云峰,赵争鸣;太阳能光伏水泵和照明综合应用系统[J];能源工程;2000年06期
8 郑诗程,苏建徽,沈玉粱,余世杰;具有TMPPT功能的数字式光伏水泵系统的设计[J];农业工程学报;2004年05期
9 李文婷;浅析光伏水泵在青藏高原推广应用的可行性[J];青海科技;2003年02期
10 刘厚林,袁寿其,施卫东,袁建平;光伏水泵系统及其应用前景[J];水泵技术;2002年02期
本文编号：2491350
本文链接：https://www.wllwen.com/kejilunwen/jixiegongcheng/2491350.html
