Power Feedward Strategy of Grid-Connected Inverter Based on Direct Power Decoupling

Chun Peng Fu; Yong Qiang Zhu

doi:10.4028/www.scientific.net/AMM.331.311

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 331Power Feedward Strategy of Grid-Connected Inverter...

Power Feedward Strategy of Grid-Connected Inverter Based on Direct Power Decoupling

Abstract:

Take into account grid inverter that using direct power control is vulnerable to the disturbance of grid voltage, a control algorithm is proposed based on the relationship between the power and voltage, which is deduced according to the mathematic model of the inverter that using double-loop control strategy. The change amount of the output power of inverter is added to the reference of power closed-loop as power feedforward, which improves the dynamic response to the grid voltage change. Simulations with EMTDC/PSCAD are carried out and the comparison of output power response to grid voltage change between control with and without power feedforward verifies its effectiveness.

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Periodical:

Applied Mechanics and Materials (Volume 331)

Pages:

311-314

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.331.311

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Online since:

July 2013

Authors:

Chun Peng Fu, Yong Qiang Zhu

Keywords:

Direct Power Control, Dynamic Response, Grid-Connected Inverter, Power Feedforward

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