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Particle swarm optimization of the state feedback current controller with oscillatory terms for a three-phase grid-tie converter
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| Author(s) |
Andrzej GALECKI |
| Abstract |
The paper presents a feedback current controller with oscillatory terms which has been designed for a three-phase grid-tie voltage source converters (VSCs) operated under distorted grid voltage conditions. The linear quadratic regulator (LQR) or the pole placement technique are typically used for designing this type of multi-variable control systems. However, both of them usually require a lot of expert knowledge. The particle swarm optimization (PSO) is proposed for off-line tuning of the multi-oscillatory current controller. The entries of the state feedback gain matrix are determined in the optimization process. The PSO tuning process is carried out using a linear model of the system in order to reduce the optimization time. Finally, the numerical verification is performed based on a switching model of the converter including pulse width modulation. |
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| Filename: | 0407-epe2018-full-10300424.pdf |
| Filesize: | 893.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-05 by System |
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