Abstract
In order to meet grid-connected requirements for microturbine generation system, reduce the cost and improve the credibility of the grid inverter, the coupling virtual flux observe program was put forward to solve the problem of the flux estimation offset and start current breakout, the virtual flux synchronous coordinate system without the voltage sensor of the net side was established, new grid-connected inverter based on Direct Power Control (DPC) with improved estimation method was designed. In view of the requirement of power transmission and suppressing the power fluctuation from the generator, power feedforward strategy was proposed to increase the control capacity. The simulation and test results show that the inverter possesses good dynamic and static performance.
| Original language | English |
|---|---|
| Pages (from-to) | 409-414 |
| Number of pages | 6 |
| Journal | Dianji yu Kongzhi Xuebao/Electric Machines and Control |
| Volume | 12 |
| Issue number | 4 |
| State | Published - Jul 2008 |
Keywords
- Control strategy
- Coupling virtual flux observer
- Grid-connection
- Microturbine power generation system
- Power feedforward
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