| Summary: | 碩士 === 國立中正大學 === 機械工程學系暨研究所 === 101 === This paper is based on the homopolar octopole Active magnetic bearings used in flywheel energy storage systems, flywheel energy storage system consists of rotor, motor/generators, magnetic bearings, power electronics components, magnetic bearing control at the geometric center of the rotor, rotation of the rotor, when we need to use energy, the generator converts the kinetic energy into electrical energy by power electronics group, releasing the energy stored in the rotor. This system has six degrees of freedom x、y、z and angle,there were five groups of active magnetic bearings (Active Magnetic Bearing, AMB) for suspension control, to achieve complete suspension, and then the speed of the rotor by motor control .We get the control law by using Lagrange equation, and use PID control and the integral sliding mode control (Integral Sliding Mode Control, ISMC).in this paper. We transfer analog to digital by DSP card. Our feedback signals are location and velocity. By using our control law, we got the correct current, and then transfer digital to analog. Current will be output into octopole AMB system by PWM. After that we will get closed loop system.
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