Parallel inverter scheme for separating conduction and switching losses
AssigneeDeere & Company
InventorDoug MALY
Life of this patent
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Abstract
In one example embodiment, a controller is coupled to a first inverter and a second inverter forming a parallel inverter scheme. The first inverter and the second inverter are configured to provide power to a load. The controller is configured to control the first inverter to operate according to a first operating state, while the second inverter is off, and turn off the first inverter before transition from the first operating state to a second operating state. The controller is further configured to control the second inverter to at least partially operate during the transition.
Claims20
A controller coupled to a first inverter and a second inverter forming a parallel inverter scheme, the first inverter and the second inverter configured to provide power to a load, the controller configured to,
- control the first inverter to,
- operate according to a first operating state, while the second inverter is off, and
- turn off the first inverter before transition from the first operating state to a second operating state;
- and
- control the second inverter to at least partially operate during the transition.
A voltage command generator coupled to a parallel inverter scheme having a first inverter and a second inverter, the voltage command generator configured to,
- receive a plurality of voltage commands from a machine controller;
- and
- generate a first command and second command based on each of the received voltage commands to,
- control the first inverter to,
- operate according to a first operating state, while the second inverter is off, and
- turn off the first inverter before transition from the first operating state to a second operating state;
- and
- control the second inverter to at least partially operate during the transition.
A parallel inverter scheme comprising:
- a first inverter configured to,
- receive voltage commands from a machine controller,
- operate according to a first operating state, while a second inverter of the parallel inverter scheme is off, and
- turn off before transition from the first operating state to a second operating state;
- and
- the second inverter configured to,
- receive the voltage commands from the machine controller, and
- at least partially operate during the transition.
Dependencies are inferred from the claim text.