An Anti-Interference Control Method for an AGV-WPT System Based on UIO-SMC
| Autor: | Weidong Huang, Dongxiao Huang, Jun Hou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
TA1001-1280
Observer (quantum physics) Computer science prediction equation Ripple Integral sliding mode wireless power transfer (WPT) TK1-9971 Inductance Transportation engineering unknown input observer (UIO) Control theory Electromagnetic coil Control system Automotive Engineering Wireless power transfer Electrical engineering. Electronics. Nuclear engineering sliding mode control (SMC) Voltage |
| Zdroj: | World Electric Vehicle Journal, Vol 12, Iss 220, p 220 (2021) World Electric Vehicle Journal Volume 12 Issue 4 |
| ISSN: | 2032-6653 |
| Popis: | During the wireless charging of an automated guided vehicle (AGV), the output voltage is unstable due to changes in parameters such as coil mutual inductance and load resistance caused by external interferences and internal mismatches of the system. In this paper, an integral sliding mode control method based on an unknown input observer (UIO) containing predictive equations is designed to build an inductor–capacitor–capacitor-series (LCC-S) topology model for wireless power transfer (WPT). The observer designed by this method can perceive changes in the secondary resistance parameter and the mutual inductance of the primary and secondary coils. The design with the prediction equation speeds up the convergence of the observer to the true value. The observer’s compensation of the control system avoids the occurrence of integral oversaturation. The experimental results show that, based on the UIO-SMC system output, voltage can be accurately controlled to meet the requirement for a given voltage. The effect of suppressing disturbance is better than with SMC and PI control. When the system parameter changes, it has better voltage anti-interference performance and stronger ripple suppression. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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