Inverter control system for providing an easily filtered output

Details Inverter control system for providing an easily filtered output Inverter control system for providing an easily filtered output

H - Electricity

02

M

321/41

H02M 1/12 (2006.01) H02M 7/5387 (2006.01)

Patent

CA 1221407

Inverter Control System For Providing An Easily Filtered Output Abstract An inverter control system for selecting an angle set defining an inverter output waveform in response to various operating conditions of the inverter. The inverter control system selects an angle set in response to signals representing the power factor of the load and the normalized DC bus voltage to minimize the harmonic content of the inverter output waveform and to compensate for voltage drops occurring between the DC power supply and the load. The inverter control system is also responsive to the inverter filter output current to detect fault conditions and in response thereto, to select at least one angle set defining a waveform to reduce the voltage at the load to zero while allowing the filter output current to increase to a given percentage of the rated current.

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