公开(公告)号：US11146073B2

公开(公告)日：2021-10-12

申请号：US16672235

申请日：2019-11-01

申请人： Caterpillar Inc.

发明人： Mike Snopko ,  Perry Converse ,  David Miller ,  Alexander Smith

IPC分类号： H02J1/10 ,  H02J3/38 ,  H02J3/40 ,  H02J3/46 ,  B63B79/40 ,  B63H21/14 ,  F02D25/02 ,  F02D41/26 ,  B63H1/02

摘要： A system and method for synchronizing a frequency of plurality of variable frequency generators with a variable frequency load over a variable frequency bus independent of a frequency conversion stage. A synchronization controller is configured to determine an optimal bus frequency of the variable frequency bus based on at least one power demand requirement of the variable frequency load operatively connected to the variable frequency bus. With the optimal frequency, an available power range supplied by the plurality of variable frequency gensets at the optimal bus frequency can be determined. The synchronization controller then asymmetrically loads the variable frequency load to the plurality variable frequency gensets at the optimal bus frequency based on the operating range of each variable frequency genset and recursively updates the optimal bus frequency based on operational statistics of the asymmetrically loaded variable frequency gensets.

公开(公告)号：US20210135458A1

公开(公告)日：2021-05-06

申请号：US16672235

申请日：2019-11-01

申请人： Caterpillar Inc.

发明人： Mike Snopko ,  Perry Converse ,  David Miller ,  Alexander Smith

IPC分类号： H02J3/40 ,  H02J3/46 ,  B63B79/40 ,  B63H1/02 ,  B63H21/14 ,  F02D25/02 ,  F02D41/26

摘要： A system and method for synchronizing a frequency of plurality of variable frequency generators with a variable frequency load over a variable frequency bus independent of a frequency conversion stage. A synchronization controller is configured to determine an optimal bus frequency of the variable frequency bus based on at least one power demand requirement of the variable frequency load operatively connected to the variable frequency bus. With the optimal frequency, an available power range supplied by the plurality of variable frequency gensets at the optimal bus frequency can be determined. The synchronization controller then asymmetrically loads the variable frequency load to the plurality variable frequency gensets at the optimal bus frequency based on the operating range of each variable frequency genset and recursively updates the optimal bus frequency based on operational statistics of the asymmetrically loaded variable frequency gensets.