Generator system

A generator operating method for operating a first generator and a second generator each having an inverter circuit configured to output alternating current and connected to each other through a power line for outputting electric power, wherein the method comprises:

• determining one of the first generator and the second generator as a master generator, and another of the first generator and the second generator as a slave generator;
• acquiring output data of the master generator;
• and
• controlling switching operation of the inverter circuit of the slave generator based on the output data of the master generator to synchronize output data of the slave generator with the output data of the master generator, wherein
• the determining includes determining one of the first generator and the second generator that starts earlier as the master generator, and when the second generator starts after the first generator but before the first generator is determined as the master generator, determining one of the first generator and the second generator as the master generator in accordance with a predefined rule.

A generator system, comprising:

• a first generator connected to a second generator;
• the first generator comprises a first microcomputer that determines a starting order of the first generator and the second generator;
• the second generator comprises a second microcomputer that determines the starting order of the first generator and the second generator;
• when the first microcomputer commences start processing in response to an engine starting instruction of the first generator, and the second microcomputer commences start processing in response to an engine starting instruction of the second generator before the first generator completes starting:
• the first microcomputer designates one of the first generator and the second generator as a master generator and designates another of the first generator and the second generator as a slave generator in accordance with a predefined rule;
• wherein the master generator outputs an AC voltage, and transmits synchronization data to the slave generator;
• wherein the slave generator outputs an AC voltage that is synchronized with the AC voltage output by the master generator based on the synchronization data.