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为实时准确监控游梁式抽油机运行状态,设计了一种基于单片机的游梁式抽油机运行状态监控系统;现场仪表采用水银开关检测运行状态,对ACDC的输出进行数据采集以检测供电状态,使用GSM通信公网将产生的报警信息远程传输到PC上位机中,在上位机中实现数据存储和图形化界面报警显示,从而实现对游梁式抽油机运行状态的监控;经实验证明,此系统停电报警响应时间小于5s,停井报警响应时间小于60s,且无误报漏报情况产生,满足实时性与准确性要求. 相似文献
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针对目前油田普遍使用的游梁式抽油机的驱动电机运行过程中功率因数和效率较低的问题,基于带补偿的恒转矩控制技术,研究开发了一种基于TMS320LF2407A高性能DSP的变频控制系统,通过对定子电压的实时最优控制,提高了电机的功率因数,使运行效率最佳;介绍了系统的外围设备,给出了系统的软件控制思路,实际运行结果表明,该控制系统运行稳定可靠,精确度和稳定性均达到了设计要求。 相似文献
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游梁式抽油机平衡度检测仪的研制 总被引:1,自引:0,他引:1
游梁式抽油机的平衡状况直接关系到其效能,而对其平衡的检测目前尚无简单易行的办法。这里,我们提出一种基于游梁式抽油机电动机电流连续测量测定平衡的方案,并用其研制出自动检测仪。实验证明,这一方案是行之有效的。 相似文献
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游梁式抽油机的平衡状况直接关系到其效能,而对其平衡的检测目前尚无简单易行的办法。这里,我们提出一种基于游梁式抽油机电动机电流连续测量测定平衡的方案,并用其研制出自动检测仪。实验证明,这一方案是行之有效的。 相似文献
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针对目前油田普遍使用的游梁式抽油机的驱动电机运行过程中功率因数和效率较低的问题,基于带补偿的恒转矩控制技术,研究开发了一种基于TMS320LF2407A高性能DSP的变频控制系统,通过对定子电压的实时最优控制,提高了电机的功率因数,使运行效率最佳;介绍了系统的外围设备,给出了系统的软件控制思路,实际运行结果表明,该控制系统运行稳定可靠,精确度和稳定性均达到了设计要求. 相似文献
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绕线式异步电机转子侧设置反馈系统,调节转子电动势,利用整流和可控硅整流装置,将转差功率回馈给电网,使水泵平滑串调并节能运行. 相似文献
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近些年来,无刷直流电机在电动汽车领域得到了广泛的应用,它的电动与回馈制动控制系统通过采用三相全桥逆变电路能够实现四象限运行。本文深入研究和分析了电压型三相全桥逆变电路控制的无刷直流电机在全桥和半桥调制方式下的电动和回馈制动过程。用DSP作为控制器在半桥调制下实施电动与回馈制动,并对换相部分进行了软件设计。通过对全桥和半... 相似文献
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本文结合游梁式抽油机生产应用的实际情况,介绍了变频调速设备在该类负载的应用情况。详细分析变频改造原理及应用可行性。 相似文献
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抽油机是大庆油田的主要采油设备,但抽油机老化现象比较严重,造成设备利用率低、能耗大.对抽油机能耗大的主要原因进行分析,包括冲次偏大、电机装机功率偏大、泵型偏小等.分析抽油机经济寿命和现有老井抽油机现状可知,更新改造抽油机还有较大的空间和潜力.采用一些方法,能够提高油井的效率,从而能够降低抽油机能耗. 相似文献
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为了解决油田抽油机采油效率和能耗较低等问题,本课题在抽油机单井变频节能控制技术的基础上,研发了丛式抽油机井群单井多模式柔性控制器,并建立丛式机井群一拖四的集中控制方案。通过选择合理的优化算法,实现了单井柔性控制与井组集中优化控制的有机结合,有针对性的提高了井群的整体能效。现场测试效果表明:该丛式抽油机柔性集中控制系统能够适应现场工况条件,实现抽油机井群系统的优化控制,并且能达到较好的控制效果与节能效果。 相似文献
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为提高抽油机在群控系统操作下的能耗特征分析精度,减少功率损耗,提出一种基于联合调度的抽油机群控系统能耗特征分析方法.设计直流供电配置下的抽油机群控系统架构,利用整数线性规划构建联合调度模型.利用粒子群算法调整系统网络偏差,采用进程代数语言形式化描述系统,把构件接口级别当作能耗特性定义,使用CSP模型完成抽油机群控系统操... 相似文献
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The main technological barrier in relying solely on renewable energy resources is that the sources such as wind and solar are highly intermittent in availability and result in uncertainty in demand satisfaction. This paper focuses on the integration of these uncertain renewable energy sources along with relatively deterministic energy sources such as reformer based fuel cell and battery. The power mix scenario between these multiple renewable energy sources along with the reformer based fuel cell system, coupled with an energy storage option is envisaged in this paper to ensure undisrupted power supply, to combat the possible intermittent nature of these renewable sources. An appropriate scheduling layer which provides a detailed plan of the optimum contribution of the various available power sources is considered over one week (7 days) duration. A model predictive control (MPC) scheme is deployed at the lower level control layer that receives a measurement of the possible fluctuations or uncertainties in the renewable power sources and maintains a smooth operation of the power generation system through appropriate decisions on generation via the reformer based fuel cell or by exploiting the battery storage, to ensure a delay-free delivery of power to the external load. During real-time operation of the plant, due to the uncertainties in the contribution from solar and wind sources, the power demanded from the fuel cell and the battery is varied accordingly by the MPC layer to meet the overall power demand. The performance of the designed MPC to maintain a smooth delivery of power in both the absence and presence of uncertainties in the renewable energy sources, with and without a reactive feedback between the scheduling and control layers, is illustrated using case studies. 相似文献
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针对二象限变频器不能回馈能量、二象限变频器+电阻制动单元中的制动电阻的设计选型与现场工况存在不匹配的问题,设计了一种矿用隔爆兼本质安全型可回馈型变频器,介绍了可回馈型变频器的主电路设计及应用效果。实际应用表明,该变频器在额定功率范围内,可将能量通过整流单元回馈给电网,满足煤矿井下电动功率和回馈功率≤160kW的要求。 相似文献
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Environmental concerns and high prices of fossil fuels increase the feasibility of using renewable energy sources in smart grid. Smart grid technologies are currently being developed to provide efficient and clean power systems. Communication in smart grid allows different components to collaborate and exchange information. Traditionally, the utility company uses a central management unit to schedule energy generation, distribution, and consumption. Using centralized management in a very large scale smart grid forms a single point of failure and leads to serious scalability issues in terms of information delivery and processing. In this paper, a three-level hierarchical optimization approach is proposed to solve scalability, computational overhead, and minimize daily electricity cost through maximizing the used percentage of renewable energy. At level one, a single home or a group of homes are combined to form an optimized power entity (OPE) that satisfies its load demand from its own renewable energy sources (RESs). At level two, a group of OPEs satisfies energy requirements of all OPEs within the group. At level three, excess in renewable energy from different groups along with the energy from the grid is used to fulfill unsatisfied demands and the remaining energy are sent to storage devices. 相似文献