Parallel connected inverters
First Claim
Patent Images
1. A method comprising:
- receiving, by a power converter, an input voltage;
determining a new input current for the power converter based on a specified function, wherein the specified function specifies a range of input currents for the power converter to draw for a corresponding range of input voltages received at a DC input of the power converter; and
equilibrating the input voltage of the power converter by adjusting an input current of the power converter to the new input current by adjusting an input current.
1 Assignment
0 Petitions
Accused Products
Abstract
A distributed power system wherein a plurality of power converters are connected in parallel and share the power conversion load according to a prescribed function, but each power converter autonomously determines its share of power conversion. Each power converter operates according to its own power conversion formula/function, such that overall the parallel-connected converters share the power conversion load in a predetermined manner.
-
Citations
17 Claims
-
1. A method comprising:
-
receiving, by a power converter, an input voltage; determining a new input current for the power converter based on a specified function, wherein the specified function specifies a range of input currents for the power converter to draw for a corresponding range of input voltages received at a DC input of the power converter; and equilibrating the input voltage of the power converter by adjusting an input current of the power converter to the new input current by adjusting an input current. - View Dependent Claims (2, 3)
-
-
4. A method comprising:
-
equilibrating a first power converter'"'"'s input voltage by adjusting an input current of the first power converter according to a first specified function, wherein the first specified function comprises a first range of the input current of the first power converter and a corresponding specified first range of the first power converter'"'"'s input voltage; and equilibrating the first power converter'"'"'s input voltage based on an adjustment of an input current of a second power converter according to a second specified function, wherein the second specified function comprises a second range of the input current of the second power converter corresponding to a specified second range of the second power converter'"'"'s input voltage. - View Dependent Claims (5)
-
-
6. A system comprising:
-
a first power converter comprising a controller, configured to adjust input current drawn by the first power converter at an input of the first power converter in response to a change in a received input voltage at the input of the first power converter until power at the input reaches an equilibrium according to a first specified function that specifies a range of input currents for the power converter to draw for a corresponding range of input voltages received at the input of the first power converter; and a second power converter, coupled in parallel to the first power converter, comprising a controller configured to adjust input current drawn by the second power converter at an input of the second power converter in response to a change in a received input voltage at the input of the second power converter until power at the input reaches an equilibrium according to a second specified function that specifies a range of input currents for the power converter to draw for a corresponding range of input voltages received at the input of the second power converter. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
-
-
14. An apparatus comprising:
-
a plurality of power converters comprising an input and an output; an enclosure; and one or more electromagnetic interference (EMI)/radio frequency interference (RFI) filters coupled to the output of the power converters and to the input of the power converters, wherein the plurality of power converters are coupled in parallel, wherein the plurality of power converters share the enclosure, and wherein one or more of the plurality of power converters are configured for operating in a load-balancing mode. - View Dependent Claims (15, 16)
-
-
17. An apparatus comprising:
-
an enclosure; one or more electromagnetic interference (EMI)/radio frequency interference (RFI) filters; and a plurality of power converters housed in the enclosure and coupled in parallel to each other, wherein one or more of the converters comprises; an input; an output; and a control module coupled to its respective input and output, wherein the control module comprises; a voltage loop block configured to receive a voltage at the input and to compare the voltage at the input to at least one previously specified reference voltage and to output a current reference signal based on the comparison; and a current loop block configured to receive an input current to a respective power converter and to compare said current reference signal with a current signal proportional to the input current of the respective converter to adjust the input current until an input power equilibrates.
-
Specification