Wire-to-water efficiency improvement water heater circulators using innovative electric drivetrains

使用创新的电动传动系统提高热水器循环器的线对水效率

• 批准号: 493145-2015
• 负责人: Youssef, Mohamed
• 金额: $ 1.46万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618623
• 关键词: Wire; water; efficiency; improvement; heater

Servo motors used in pumps or other industrial applications is currently a niche technology in many countries, but they are increasingly expected to form an important role in a "low carbon" future. This is largely because a future of rapidly decarbonised electricity supply is imagined, in which using electricity via high efficiency pumps is one of the lowest carbon options. The higher the pump efficiency; the lower its carbon foot print as it will require less fossil fuel to be burned to operate it.This project presents a promising solution to the problem of the bad environmental impacts of the induction motor based water pumps. Due to the low wire-to-water efficiency of the current residential water heaters (Around 30%); a high energy cost is paid by every household in North America and even worldwide. The contribution of this project comes in two folds; the first is the development of a mapping algorithm that relates the pressure head (H) and the water flow rate (Q) to a corresponding torque ad speed under the chart of Best Efficiency Point (BEP), which was programmed to the controller, the second is the development of a cost effective Brushless DC (BLDC) motor through extensive numerical analysis technique. The proposed motor solution designs the BLDC with minimal pulsating torque by comparing two different designs. The new controller is based on a modified field oriented control (FOC). The controller PCB is of 2-layers to offer a cost effective solution. The proposed pump eliminates the need of a battery for the controller as the control voltage is fed directly from the line together with the motor. The motor simulation model and the controller design procedure will be developed with simulation results of two possible prototypes. An experimental prototype will be built for a 150W residential pump and preliminary results will be given to highlight the merits of the work.

用于泵或其他工业应用的伺服电机目前在许多国家是一种利基技术，但它们越来越被期望在“低碳”未来中发挥重要作用。这在很大程度上是因为人们设想了一个快速脱碳电力供应的未来，其中通过高效泵使用电力是最低碳的选择之一。泵的效率越高，其碳足迹就越低，因为它需要更少的化石燃料来运行它。该项目为基于感应电机的水泵的不良环境影响问题提供了一个有前途的解决方案。由于目前家用热水器的电线到水的效率低（约30%），北美甚至全世界的每个家庭都要支付高昂的能源成本。该项目的贡献来自两个方面;第一个是映射算法的开发，该映射算法将压头（H）和水流量（Q）与最佳效率点（BEP）图表下的相应扭矩和速度相关联，并将其编程到控制器中，第二个是通过广泛的数值分析技术开发具有成本效益的无刷直流（BLDC）电机。所提出的电机解决方案通过比较两种不同的设计来设计具有最小脉动转矩的BLDC。新的控制器是基于一个修改的磁场定向控制（FOC）。控制器PCB是2层的，以提供具有成本效益的解决方案。所提出的泵消除了对用于控制器的电池的需要，因为控制电压与马达一起直接从线路馈送。电机仿真模型和控制器的设计过程将开发两个可能的原型的仿真结果。将建立一个实验样机为150 W的住宅泵和初步的结果将突出工作的优点。