Imposed Source Current Predictive Control for Battery Charger Applications with Active Damping
| Autor: | Mustafa Gökdağ, Ozan Gülbudak |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Engineering
Electrical and Electronic Computer science General Engineering Battery (vacuum tube) Mühendislik Elektrik ve Elektronik Power factor LC circuit Filter capacitor Model predictive control Battery charger Hardware_GENERAL Control theory Constant current current source rectifier battery charger model predictive control active damping Voltage |
| Zdroj: | Volume: 23, Issue: 5 964-971 Sakarya University Journal of Science |
| ISSN: | 2147-835X |
| DOI: | 10.16984/saufenbilder.543070 |
| Popis: | This paper presents an imposed source current predictive control approach for a current source rectifier that can be used as battery charger fed from three-phase ac grid. The proposed MPC technique allows to charge the battery with a constant current or voltage as what is required for cyclic charge process of batteries. The proposed technique ensures unity input power factor operation for grid side. The single-objective cost function of the predictive control employs the error between supply current reference and supply current prediction and the switching state that minimizes this cost function is selected among the nine switching vector combinations of the current source rectifier so as to apply for next sampling interval. An active damping current term, that is predicted from the input filter capacitor voltage estimation is included in the cost function to mitigate the resonance of input LC filter. The supply current references in phase with grid voltages are generated from grid voltages and the amplitude of this reference currents are generated from the charging requirements of the battery. The input filter model is used to predict the filter capacitor voltages at sampling intervals k and k+1 in order to eliminate sensor requirement for them. A simulation study is carried out to observe the proposed method in terms of steady-state and dynamic responses and supply current quality. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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