2011•IEEE Transactions on Power ElectronicsRequires access
The Design of Digital Three Loops Servo System Based on Brushless DC Motor
Huizhen Wang
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Abstract
The model of the steering engine servo system based on brushless direct current motor(BLDCM) is given,and the design progress of the position loop is also given.The three loops control system and the design progress of every parts of the system are shown.And the design rule of the position adjustor's parameters is showed.The article shows the design of the hardware and software of the system.The rotor's position is sampled by the high accuracy magnetic encoders.The system uses the control strategy of chopping the opening phase.At the same time,the system uses the a-gainst integral saturation PI regulator.The experimental results based on the system which contains a 1.2 kW BLDCM verifiy that the system can get the goal of position servo precisely.