Contactless power feeding facility

A contactless power feeding facility configured to supply power in a contactless manner to a power receiving device, the contactless power feeding facility comprising:

• a plurality of power feeding lines side by side along a movement path of a moving body including the power receiving device;
• and
• a plurality of power supply devices respectively connected to the power feeding lines and configured to supply alternating currents to the power feeding lines,
• wherein the contactless power feeding facility further comprises a synchronization system configured to synchronize phases of the alternating currents of the plurality of power supply devices,
• wherein the synchronization system comprises:
• a master unit configured to transmit a synchronization signal having a predetermined period;
• and
• at least one slave unit connected downstream to the master unit and configured to receive the synchronization signal from the master unit,
• wherein the slave unit is directly connected to the master unit, or indirectly connected to the master unit via another slave unit, and is further connected to at least one of the power supply devices,
• wherein the master unit is configured to (i) compute a third adjusted signal, which is the synchronization signal advanced in phase relative to a reference phase by a time corresponding to a sum of a first required time, which is a time required to transmit the synchronization signal from the master unit to master downstream equipment, which is a slave unit directly connected downstream to the master unit, and a processing time of the synchronization signal inside the master downstream equipment, and (ii) transmit the third adjusted signal to the master downstream equipment, and
• wherein the slave unit is configured to:
• in response to slave downstream equipment, which includes one of the plurality of power supply devices and another slave unit directly connected downstream to the slave unit, being another slave unit directly connected downstream to the slave unit, compute a fourth adjusted signal advanced in phase relative to a phase of the synchronization signal received from slave upstream equipment, which is the master unit or another slave unit directly connected upstream to the slave unit, by a time corresponding to a sum of (i) a second required time, which is a time required to transmit the synchronization signal from the slave unit to the slave downstream equipment, and (ii) a processing time of the synchronization signal inside the slave downstream equipment, and transmit the fourth adjusted signal to the slave downstream equipment;
• and
• in response to the slave downstream equipment being the one of the plurality of power supply devices directly connected downstream to the slave unit, compute a fifth adjusted signal advanced in phase relative to a phase of the synchronization signal received from the slave upstream equipment by a time corresponding to the second required time, and transmit the fifth adjusted signal to the slave downstream equipment.