Abstract
Small-scale distributed generation (DG) is often not a natural 50 or 60 Hz AC source and so employs an inverter for the interface to the utility grid. Here, repetitive control is examined as a means of also using a DG inverter to improve the distortion of a local grid where a large proportion of the load is non-linear. The proposed controller can offer better waveform quality in balanced and unbalanced conditions than PI controllers in either stationary or rotating reference frames. The inverter also requires a control loop to regulate the exported power. A decoupled P and Q controller is applied and compared to a traditional amplitude and angle controller. The controllers are tested for disturbance rejection of variations in grid voltage, DC-link voltage and load power.
| Original language | English |
|---|---|
| Pages (from-to) | 1803-1808 |
| Number of pages | 6 |
| Journal | PESC Record - IEEE Annual Power Electronics Specialists Conference |
| Volume | 4 |
| State | Published - 2002 |
| Externally published | Yes |
| Event | 2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) - Cairns, Australia Duration: 23 Jun 2002 → 27 Jun 2002 |
Keywords
- Distributed generation
- Grid connection
- Inverter
- Power control
- Repetitive control