US2015117067A1PendingUtilityA1

Energy conversion systems with power control

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Individually held — no corporate assignee on recordPriority: Dec 21, 2007Filed: Aug 4, 2014Published: Apr 30, 2015
Est. expiryDec 21, 2027(~1.4 yrs left)· nominal 20-yr term from priority
Inventors:Ravindranath NaiknawareVincenzo DitommasoTriet Tu LeRobert BattenTerri Shreeve Fiez
H02J 3/381H02J 2101/30H02J 2101/28H02J 2101/25H02M 3/33546H02M 7/4807H02J 3/44Y02E10/56Y02E10/76
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Claims

Abstract

In one embodiment, a power conversion system includes a controller to provide power control to a converter, and a distortion mitigation circuit. In another embodiment, a system includes a converter to transfer power between a power source and a load having fluctuating power demand, and a controller to provide power control, where the controller may selectively disable the power control. In another embodiment, a power conversion system includes a controller to generate a drive signal to provide power control to a power path in response to a sense signal from the power path, where the sense signal is taken from other than the input of the power path, or the drive signal is applied to the power path at other than a first power stage.

Claims

exact text as granted — not AI-modified
1 . A system comprising:
 a converter to transfer power between a power source and a load having a fluctuating power demand;   a controller to provide power control; and   a distortion mitigation circuit.   
     
     
         2 . The system of  claim 1  where:
 the converter comprises an energy storage device; and 
 the distortion mitigation circuit controls a parameter of the energy storage device. 
 
     
     
         3 . The system of  claim 2  where the distortion mitigation circuit may slide a DC portion of the parameter to prevent extremes of an AC portion of the parameter from causing unacceptable distortion. 
     
     
         4 . The system of  claim 1  where the distortion mitigation circuit comprises a sine generator. 
     
     
         5 . The system of  claim 1  where the distortion mitigation circuit comprises a predistortion circuit. 
     
     
         6 . The system of  claim 1  where the controller comprises grid current control. 
     
     
         7 . A system comprising:
 a converter to transfer power between a power source and a load having fluctuating power demand; and   a controller to provide power control;   where the controller may selectively disable the power control.   
     
     
         8 . The system of  claim 7  where:
 the power control prevents power fluctuations from reaching the power source; and 
 disabling the power control enables power fluctuations to reach the power source. 
 
     
     
         9 . The system of  claim 7  further comprising a tracking circuit to monitor the power source. 
     
     
         10 . The system of  claim 9  where the tracking circuit determines an operating point when the power control is disabled. 
     
     
         12 . The system of  claim 10  where the operating point comprises a maximum power point. 
     
     
         13 . The system of  claim 9  where the power control is disabled periodically, or when an operating parameter of the converter deviates from an expected value. 
     
     
         14 . The system of  claim 13  where the controller may re-enable the power control when an operating parameter of the converter exceeds a limit. 
     
     
         15 . A system comprising:
 a power path having a first power stage coupled to an input of the power path; and   a controller to generate a drive signal to provide power control in response to a sense signal from the power path;   where the sense signal is taken from other than the input of the power path, or the drive signal is applied to the power path at other than the first power stage.   
     
     
         16 . The system of  claim 15  where the sense signal is taken from an output of the power path. 
     
     
         17 . The system of  claim 15  where power is controlled by controlling a parameter of the power path to a constant value. 
     
     
         18 . The system of  claim 15  where power is controlled by controlling a parameter of the power path to a fluctuating value. 
     
     
         19 . The system of  claim 15  where the power path includes:
 an energy storage device following the first power stage; and 
 a second power stage having an input coupled to the energy storage device. 
 
     
     
         20 . The system of  claim 19  where the drive signal is applied to the second power stage.

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