Abstract
AbstractThis paper presents a unique technique to control a photovoltaic (PV)‐powered piston‐type water pump. the method uses a linear motor mounted directly onto the piston rod of the pump. This linear motor method replaces the traditional piston‐type water pump, which employs a DC motor with a bulky gear mechanism to convert the rotational motion of the motor to linear motion for the piston.The electric circuit used to control the linear motor employs a four‐quadrant chopper, which uses four fast MOSFETs and a simple logic circuit for the switching.The experimental results show that the PV‐powered linear motor system can be used as an alternative to the PV‐powered DC motor gear system.
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