US 12,334,743 B1
Power conversion system (PCS) parallel architecture and synchronization control method thereof
Ming-Hung Yu, Zhudong Township (TW); Pao-Chuan Lin, Zhubei (TW); Wan-Pei Chen, Hsinchu (TW); and Kuan-Wen Chen, New Taipei (TW)
Assigned to INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed by INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed on Dec. 26, 2023, as Appl. No. 18/396,402.
Claims priority of application No. 112149020 (TW), filed on Dec. 15, 2023.
Int. Cl. H02J 3/32 (2006.01); H02J 3/38 (2006.01); H02J 3/44 (2006.01)
CPC H02J 3/44 (2013.01) [H02J 3/32 (2013.01); H02J 3/381 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A power conversion system (PCS) parallel architecture, comprising: a plurality of PCSs electrically coupled to each other through a synchronization signal bus to achieve synchronization, the PCSs further individually coupled to an AC mains power and a DC power supply, respectively;
wherein each of the PCSs comprises a PCS controller,
among the PCS controllers, when a target PCS controller of the PCS controllers transmits a synchronization signal earliest on the synchronization signal bus to obtain master control, the synchronization signal transmitted from the target PCS controller having the master control is used as a system synchronization signal, and other PCS controllers not having the master control are synchronized with the system synchronization signal by referring to the system synchronization signal.