An H-bridge inverter connects a DC power source to the grid through an interfacing

Question # 00635693 Posted By: katetutor Updated on: 01/10/2018 05:52 AM Due on: 01/10/2018
Subject Engineering Topic General Electrical Engineering Tutorials:
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An H-bridge inverter connects a DC power source to the grid through an interfacing inductance of 5mH. The grid is 230V, 50Hz with a variance of +10% and-6% on the supply voltage. The rated generating power is 3kW at unity power factor to the grid.


a)What is the minimum required DC voltage at the input of the H-bridge if the maximum power flow from the DC source to the grid is 3kW at unity power factor?


b)How does the load angle of the inverter output voltage relative to the grid vary as the supply voltage changes from maximum to minimum value, and the delivered power  varies from zero to rated power?


c)Determine the required range of modulation index if the input DC voltage is 380V.


d)What is the rated RMS current of the inverter?

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  1. Tutorial # 00634515 Posted By: katetutor Posted on: 01/10/2018 05:52 AM
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