Low power consumption piston control signals design for a 24-coil electromagnetic force driving reciprocating pump

• Main Authors: Chang, Ting-Chia, 張庭嘉
• Other Authors: Lee, Shu-Sheng
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/uv7573

碩士 === 國立臺灣海洋大學 === 系統工程暨造船學系 === 106 === According to the World Health Organization (WHO) report, cardiovascular disease is one of the top 10 causes of deaths today, in which heart disease is the first death rate, so how effective treatment of heart disease has become an important issue. The development of left ventricular assist device (LVAD) plays a key role in clinical treatment and improves the survival rate of patients with severe heart disease. And compared to the widely used continuous left ventricular aids, pulsating can pulsating the way to promote blood, this method is closer to the heart of the movement, help to restore cardiac function. However, pulsating pumps in the process of promoting the blood to consume higher power, but also make the pump heat, causing inconvenience. This study will refer to the pulse width modulation (Pulse Width Modulation, PWM) method, for the team developed by the 24-coil magnetic drive pump to observe and find low-power drive. The pump will interact with the magnetic field formed by the energization of the coil and interact with the permanent magnets placed in the pump internal piston, thereby driving the piston to reciprocate and use the Hall sensor to monitor the piston position in real time, The drive signal remains the same. Experimental results show that, according to the design of the drive method, can reduce the power loss of 40%, to achieve the purpose of energy conservation.