Abstract
This paper presents a control design method for a utility interactive inverter based on time-delayed estimator. The proposed control scheme is basically based on the predictive control. The primary control objective is to minimize the prediction error in order that the reference signal can be tracked rapidly without steady-state error. To overcome the well-known drawback of the predictive control due to the mismatch on system parameters, the time-delayed estimator will be introduced. Time-delayed estimator can effectively forecast the variations in system parameters as well as the disturbances in grid voltage by using the discrete-time model of system with nominal values. As a result, the proposed controller not only has the fast dynamic response but also provides a robust performance. Theoretical analyses and comparative simulation results are presented to demonstrate the effectiveness of the proposed control scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 37939-37944 |
| Number of pages | 6 |
| Journal | International Journal of Applied Engineering Research |
| Volume | 10 |
| Issue number | 17 |
| State | Published - 2015 |
Keywords
- Distributed generation
- Harmonic distortion
- Robust control
- Time-delayed estimator
- Utility interactive inverter