MODELING AND PI CONTROL OF DIESEL APU FOR SERIES HYBRID ELECTRIC VEHICLES

  • HE B. (State Key Laboratory of Automotive Safety and Energy, Tsinghua University) ;
  • OUYANG M. (State Key Laboratory of Automotive Safety and Energy, Tsinghua University) ;
  • LU L. (State Key Laboratory of Automotive Safety and Energy, Tsinghua University)
  • Published : 2006.02.01

Abstract

The diesel Auxiliary Power Unit (APU) for vehicle applications is a complex nonlinear system. For the purpose of this paper presents a dynamic average model of the whole system in an entirely physical way, which accounts for the non-ideal behavior of the diode rectifier, the nonlinear phenomena of generator-rectifier set in an elegant way, and also the dynamics of the dc load and diesel engine. Simulation results show the accuracy of the model. Based on the average model, a simple PI control scheme is proposed for the multivariable system, which includes the steps of model linearization, separate PI controller design with robust tuning rules, stability verification of the overall system by considering it as an uncertain one. Finally it is tested on a detailed switching model and good performances are shown for both set-point following and disturbance rejection.

Keywords

References

  1. Caliskan, V., Perreault, D. J., Jahns, T. M. and Kassakian, J. G. (2003). Analysis of three-phase rectifiers with constant-voltage loads. IEEE Trans. Circuits and Systems I: Fundamental Theory and Applications 50, 9, 1220-1225 https://doi.org/10.1109/TCSI.2003.816323
  2. Fredriksson, J. and Egardt, B. (2003). Backstepping control with integral action applied to air-to-fuel ratio control for a turbocharged diesel engine. SAE 2002 Trans. J. Engines, 506-511
  3. Hagglund, T. and Astrom, K. J. (2002). Revisiting the zeigler-nichols tuning rules for PI control. Asian J. Control 4, 4, 364-380 https://doi.org/10.1111/j.1934-6093.2002.tb00076.x
  4. Jadric, I., Borojevic, D. and Jadric, M. (2000). Modeling and control of a synchronous generator with an active DC Load. IEEE Trans. Power Electronics 15, 2, 303-311 https://doi.org/10.1109/63.838103
  5. Kao, M. H. and Moskwa, J. J. (1995). Turbocharged diesel engine modeling for nonlinear engine control and state estimation. ASME J. Dynamic Systems, Measurement, and Control, 117, 20-30 https://doi.org/10.1115/1.2798519
  6. Kelly, K. and Eudy, L. (2000). Field operations program - overview of advanced technology transportation: CY2000. Document NREL/MP-540-27962
  7. Krause, P. C. (1987). Analysis of Electric Machinery. McGraw-Hill. New York
  8. Powell, B. K., Bailey, K. E. and Cikanek, S. R. (1998). Dynamic modeling and control of hybrid electric vehicle powertrain systems. IEEE Control Systems Magazine 18, 5, 17-33 https://doi.org/10.1109/37.722250
  9. Powell, B. K. and Pilutti, T. E. (1994). A range extender hybrid electric vehicle dynamic model. IEEE 33rd Conf. Decision and Control, 2736-2741. Lake Bunena Vista, FL
  10. Rao, N. M., Vora, P. and Moudgalya, K. M. (2003). PiD control of DAE systems. I&EC Research 1, 42, 4599-4610
  11. Senesky, M. K., Tsao, P. and Sanders, S. R. (2004). Simplified modelling and control of a synchronous machine with variable-speed six-step drive. IEEE APEC Conf., 3, 1803-1809
  12. Song, Q. and Grigoriadis, K. M. (2003). Diesel engine speed regulation using linear parameter varying control. 2003 American Control Conf., 1, 779-784
  13. Sudhoff, S. D., Corzine, K. A., Hegner, H. J. and Delisle, D. E. (1996). Transient and dynamic average-value modeling of synchronous machine fed load commutated converters. IEEE Trans. Energy Conversion 11, 3, 508-514 https://doi.org/10.1109/60.537001
  14. Zhou, K. M. (1999). Essentials of Robust Control, 137-145. Prentice Hall, NJ