Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 36, Issue 6, Pages 7319-7332Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2020.3041653
Keywords
Batteries; Robustness; Switches; Power system stability; Load modeling; Stability analysis; Perturbation methods; Adaptive robust control; electric vehicle; hybrid energy storage system (HESS); L2-gain control; port-controlled Hamiltonian model with dissipation (PCHD)
Categories
Funding
- National Natural Science Foundation of China [61673164, 62073127]
- Hunan Provincial Natural Science Foundation [2020GK2089, 2020JJ6024]
- Key Project of Hunan Educational Department [19K025]
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The article introduces an innovative L2-ARC method for the voltage/current tracking control of a hybrid energy storage system in electric vehicles. By combining the IDA-PBC controller with the L2 gain disturbance attenuation technique, the method ensures stable control. It adopts an adaptive mechanism to estimate electrical parameters, achieving high performance and robust stability.
The underlying voltage/current tracking control is a key issue for a hybrid energy storage system (HESS) in electric vehicles. This article presents an innovative passivity-based L2-gain adaptive robust control (L2-ARC) method for a fully active battery/super-capacitor HESS. First, by exploiting and analyzing the internal structural properties, the port-controlled Hamiltonian model with dissipation for HESS is derived and then, the interconnection and damping assignment-passive based controller (IDA-PBC) is designed to realize the underlying control, where the rule-based energy management strategy is adopted to generate the current references. To overcome the adverse influence of external disturbances and parameter perturbations under complex driving conditions, by combining the L2 gain disturbance attenuation technique with the IDA-PBC method, the L2-ARC method is developed to guarantee fast response, high performance, and robust stability. Moreover, an adaptive mechanism is adopted to estimate the electrical parameters. The performance of L2-ARC is thoroughly investigated and compared through comprehensive case studies with traditional PID, IDA-PBC, and sliding mode controllers. Finally, a control prototype is implemented to validate L2-ARC.
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