三相电压型并网逆变器预测直接功率控制

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Abstract This paper investigates a novel direct power control, predictive direct power control (P-DPC), for three-phase grid-connected voltage-sourced inverters(GC-VSI). Different strategies to select voltage vectors and their duration time appropriately are addressed to eliminate the low-orders harmonic of currents, and obtain better dynamic and static performance. The P-DPC, which is implemented in the stationary reference frame directly, can obtain a fixed switch frequency instead of the shortcoming of variable switching frequency appears in conventional look-up table direct power control (LUT-DPC) and, meanwhile, it still maintains the fast transient feature of DPC. Furthermore, it requires no synchronous reference frame transformation and space vector pulse width modulation. The simulation and experimental investigation on LUT-DPC, vector control and P-DPC are carried out on a 2kVA GC-VSI. The results show the effectiveness of the proposed P-DPC strategy and its application potential on renewable energy industry.

Key words： Grid-connected voltage sourced inverter (GC-VSI) predictive direct power control (P-DPC) fixed switch frequency

Received: 11 January 2010 Published: 07 March 2014

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TM464

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	Articles by authors
	Shang Lei
	Sun Dan
	Hu Jiabing
	He Yikang

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Shang Lei,Sun Dan,Hu Jiabing等. Predictive Direct Power Control of Three-Phase Grid-Connected Voltage-Sourced Inverters[J]. Transactions of China Electrotechnical Society, 2011, 26(7): 216-222.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I7/216

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