TY - GEN
T1 - A Pulsewidth Modulation Based Double Integral Sliding Mode Controller for Class-D Amplifiers
AU - Aimaier, Nueraimaiti
AU - Constantin, Nicolas
AU - Cowan, Glenn
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In recent years, sliding mode control (SMC) has become more feasible for power electronic converters. One variation of SMC is double integral sliding mode control (DISMC), which has shown good regulation of output voltage, minimum steady-state error, and fast dynamic response to load variation. However, DISMC was rarely applied to class-D amplifiers, and the biggest challenge for applying it to class-D is the stability condition. It becomes more complex than DC-DC converters in which the reference signal is constant and the system's dynamics at steady state are zero. On the other hand, a class-D amplifier's reference is a time-varying signal and the system's dynamics at steady-state are not zero anymore. In this paper, a detailed stability analysis of a PWM-based DISMC for a class-D amplifier is conducted, and controller gains are derived. Simulation results validate the stability of a class-D amplifier that uses DISMC.
AB - In recent years, sliding mode control (SMC) has become more feasible for power electronic converters. One variation of SMC is double integral sliding mode control (DISMC), which has shown good regulation of output voltage, minimum steady-state error, and fast dynamic response to load variation. However, DISMC was rarely applied to class-D amplifiers, and the biggest challenge for applying it to class-D is the stability condition. It becomes more complex than DC-DC converters in which the reference signal is constant and the system's dynamics at steady state are zero. On the other hand, a class-D amplifier's reference is a time-varying signal and the system's dynamics at steady-state are not zero anymore. In this paper, a detailed stability analysis of a PWM-based DISMC for a class-D amplifier is conducted, and controller gains are derived. Simulation results validate the stability of a class-D amplifier that uses DISMC.
KW - Class-D amplifier
KW - DISMC
KW - Full-bridge
KW - Sliding mode control
UR - https://www.scopus.com/pages/publications/85173993960
U2 - 10.1109/PEDS57185.2023.10246506
DO - 10.1109/PEDS57185.2023.10246506
M3 - Contribution to conference proceedings
AN - SCOPUS:85173993960
T3 - Proceedings of the International Conference on Power Electronics and Drive Systems
BT - 14th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2023
Y2 - 7 August 2023 through 10 August 2023
ER -