This paper studies a novel Proportional Resonant (PR) disturbance observer (PRobs) design for a 400Hz frequency converter Ground Power Unit (GPU), a device that provides electrical power to aircrafts while they are on...
详细信息
This paper studies a novel Proportional Resonant (PR) disturbance observer (PRobs) design for a 400Hz frequency converter Ground Power Unit (GPU), a device that provides electrical power to aircrafts while they are on the ground. The observer is proposed to estimate the output voltage and inductor current, as well as the unmeasurable system disturbances resulting from system parameter variations and load changes. The PR control algorithm, designed to achieve a high gain at resonant frequency, is employed to minimize the estimation error between the estimated and actual states, thereby providing highly accurate estimated values for voltage, current, and system disturbances. A singleloop control strategy based on the observer's estimated output is implemented to regulate the inverter's output voltage. The system demonstrates strong robustness as disturbances can be estimated and cancelled out. Matlab simulations are initially conducted, followed by real-time simulations using a hardware-in-the-loop (HIL) setup to validate the method's effectiveness. Finally, the design is verified through experimental testing.
Typical capital budgets and more stringent demands on controlling the process require cost-effective field control. By providing digital signaling and integrated PID capability, today's field instruments and HART ...
详细信息
Typical capital budgets and more stringent demands on controlling the process require cost-effective field control. By providing digital signaling and integrated PID capability, today's field instruments and HART protocol fulfil the requirements. Installation costs are substantially reduced using less hardware and digital communications to remote sites. Control can now be applied to many applications which previously were not economical. Published by Elsevier Science Ltd.
暂无评论