Patent ID: 11894687
Assignee: SUNGROW POWER SUPPLY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The method according to claim 1, further comprising, for each MLPE apparatus in response to receiving a ranking message:
storing the interim rank and the accumulated operation duration comprised in the ranking message;
in response to the interim rank comprised in the ranking message being identical to the interim rank of the accumulated operation duration of said MLPE apparatus, comparing the accumulated operation duration comprised in the ranking message with the accumulated operation duration of said MLPE apparatus to obtain a first comparing result, and
increasing, by 1, the interim rank of a MLPE apparatus corresponding to the shorter accumulated operation duration in the first comparing result; and
in response to the interim rank comprised in the ranking message being identical to any interim rank stored in said MLPE apparatus,
comparing the accumulated operation duration comprised in the ranking message with the accumulated operation duration corresponding to said interim rank stored in said MLPE apparatus, to obtain a second comparing result, and
increasing, by 1, the interim rank of a MLPE apparatus corresponding to the shorter accumulated operation duration in the second comparing result;
wherein the ranking message is the initial message sent from any other MLPE apparatus;

wherein determining, by the MLPE apparatuses, the rank of the accumulated operation duration of each MLPE apparatus according to the initial messages sent from all MLPE apparatuses further comprises:
determining, by each MLPE apparatus, whether the interim rank comprises in each initial message received within a preset period is identical to the stored interim rank of an MLPE apparatus sending said initial message; and
determining, by the MLPE apparatuses, the interim rank of each MLPE apparatus as the rank of the accumulated operation duration of said MLPE apparatus, in response to each MLPE apparatus determining that the interim rank comprised in each ranking message received within a preset period is identical to the stored interim rank of an MLPE apparatus sending said ranking message.