Abstract
This paper proposes a Sliding Mode Control (SMC) based scheme for a variable speed, direct-driven Wind Energy Conversion Systems (WECS) equipped with Permanent Magnet
Synchronous Generator (PMSG) connected to the grid. In this work, diode rectifier, boost converter, Neutral Point Clamped (NPC) inverter and L filter are used as the interface between the wind turbine and grid. This topology has abundant features such as simplicity for low and medium power wind turbine applications. It is also less costly than back-to-back two-level converters in medium power applications. SMC approach demonstrates great performance in complicated nonlinear systems control such as WECS. The proposed control strategy modifies Reaching Law (RL) of sliding mode technique to reduce chattering issue and to improve THD property compared to conventional reaching law SMC. The effectiveness of the proposed control strategy is explored by simulation study on a 4 kW wind turbine, and then verified by experimental tests for a 2 kW set-up.
Synchronous Generator (PMSG) connected to the grid. In this work, diode rectifier, boost converter, Neutral Point Clamped (NPC) inverter and L filter are used as the interface between the wind turbine and grid. This topology has abundant features such as simplicity for low and medium power wind turbine applications. It is also less costly than back-to-back two-level converters in medium power applications. SMC approach demonstrates great performance in complicated nonlinear systems control such as WECS. The proposed control strategy modifies Reaching Law (RL) of sliding mode technique to reduce chattering issue and to improve THD property compared to conventional reaching law SMC. The effectiveness of the proposed control strategy is explored by simulation study on a 4 kW wind turbine, and then verified by experimental tests for a 2 kW set-up.
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 63 |
| Issue number | 10 |
| Pages (from-to) | 6148 - 6159 |
| Number of pages | 12 |
| ISSN | 0278-0046 |
| DOIs | |
| Publication status | Published - Oct 2016 |
Keywords
- Wind Energy Conversion System
- Permanent magnet synchronous generator (PMSG)
- Sliding Mode Control
- Unity power factor
- Enhanced Exponential Reaching Law
- Neutral point clamped