Precise Speed Control of DC Motor by Implementing Cascade PI Controller

Abstract

Currently CO2 gas emissions from conventional vehicles makes a big impact on global warming. One of the solutions is switch the technology from using the combustion engine into electric motor. Control method is needed to drive the electric motor hence the machine performance meets the design specifications. In this research, the unknown DC motor parameter was estimated using Matlab parameter estimation tools. Furthermore, the cascade PI control method with series connection was applied on DC motor that act as main actuator which regulates motor speed and its acceleration. The gain of two controller was tuned by using Particle Swarm Optimization and Genetic Algorithm. The simulation and experimental results show that the speed response gives good performance and satisfy the design specification.