Abstract
This paper presents a model predictive current control algorithm that is suitable for multilevel converters and its application to a three-phase cascaded H-bridge inverter. This control method uses a discrete-time model of the system to predict the future value of the current for all voltage vectors, and selects the vector which minimizes a cost function. Due to the large number of voltage vectors available in a multilevel inverter, a large number of calculations are needed, making difficult the implementation of this control in a standard control platform. A modified control strategy that considerably reduces the amount of calculations without affecting the system's performance is proposed. Experimental results for five- and nine-level inverters validate the proposed control algorithm.
| Original language | English |
|---|---|
| Article number | 5409615 |
| Pages (from-to) | 2691-2699 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 57 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 2010 |
| Externally published | Yes |
Keywords
- Cascaded H-bridge (CHB)
- current control
- inverters
- model predictive control (MPC)
- multilevel inverters
- predictive control