Free piston type linear power generation device and power generation method thereof

The invention relates to a free piston type linear power generation device and a power generation method thereof, and belongs to the technical field of the free piston type linear power generation device. The free piston type linear power generation device structure and improvement on the power generation method thereof are provided. According to the technical scheme adopted, the device comprisesa cylinder, wherein one end of the cylinder is provided with an electromagnetic driving valve, a spark plug and a fuel injector, and the other end of the cylinder is connected with a generator chamber; a piston is arranged inside a cylinder body of the cylinder, the piston is connected with a rotor magnet yoke arranged in the generator chamber through a push rod, and a rotor magnetic pole is arranged on the outer surface of the rotor magnet yoke; and a stator iron core is arranged on the inner wall of the generator chamber, a winding is arranged on the stator iron core, an extension end of thepush rod is connected wit