Energy and Time-efficient Embedded Systems for Energy-efficient Electro-mechanics

Principal Investigator
Graduate Fellows
Yiqi Liu, Artur Ulatowski
Project Duration
2014 - 2015
The main objective of this project is to achieve both open-loop (V/f) and closed-loop (Indirect Field Oriented Control or IFOC) control of an induction motor drive with integrated model-based loss minimization algorithms in simulation models. Simulations are built in MATLAB/Simulink and address a stepping load torque up to rated torque. Implementation of the proposed control in hardware, at least for V/f control, is achieved using a dSPACE 1104 platform. Automatic code optimization using Simulink and Code Composer Studio for a C2000 platform is also used for scalability across various UTC-BIS projects. Another objective is to achieve time-efficient automatically-generated code of these methods that can be integrated in one or more UTC-BIS applications. Such time-efficient code which is capable of reducing memory allocation, clock cycles per second, or both, from a nominal sub-optimal code, is expected to achieve advanced efficiency control functionality within the existing allocation of memory and required cycles on a C2000 processor without affecting basic control robustness or functionality. On the power stage side, i.e. the motor and inverter, it is desired to exceed efficiency and performance expectations of existing technology and commercial drives, especially a commercial 11 KW drive, where efficiency is expected to increase between 0.1 and 5% in 11 KW or smaller drives, and 0.1 to 1% in 1.5 MW drives for most loads.
Peer Review Papers and Conference Proceedings
Y. Liu and A.M. Bazzi, "A General Analytical Three-Phase Induction Machine Core Loss Model in the Arbitrary Reference Frame," in IEEE Transactions on Industry Applications, vol. 52, pp. 4210 – 4220, 2017.
Y. Liu and A.M. Bazzi, "A Comprehensive Analytical Power Loss Model of an Induction Motor Drive System with Loss Minimization Control," in Proc. IEEE International Electric Machines and Drives Conference, 2015, pp. 1-6.