초록 ▼

A power generation system (40), (120), is disclosed in which the phase and frequency of alternating current generated by one or more generators (14) is locked to the phase of alternating current generated by a master generator (12) or to an external power source (124). A master control unit (42), (1

A power generation system (40), (120), is disclosed in which the phase and frequency of alternating current generated by one or more generators (14) is locked to the phase of alternating current generated by a master generator (12) or to an external power source (124). A master control unit (42), (122) contains a master count generator (52) which generates a synchronization count which is transmitted to each generator control unit (44). The synchronization count at any point in time of the master count generator is directly proportional to the phase of electrical current being generated by the master generator or the external power source. Each generator control unit (44) receives the synchronization count and compares the synchronization count with a locally generated synchronization count which is proportional to the phase of electrical current being generated by a generator controlled by the generator control unit receiving the synchronization count. The phase of the alternating current generated by the generators controlled by the each generator control unit receiving the synchronization count is adjusted as a function of the difference of the received and locally generated synchronization count to lock the phase and frequency of the alternating current with the phase and frequency of alternating current generated by the master generator or the phase and frequency of the external, power source.

대표청구항 ▼

An alternating current generating system having at least one slave generator with each slave generator being controlled by an associated slave generator control unit with alternating current generated by each slave generator being at least locked in phase to alternating current generated by a master

An alternating current generating system having at least one slave generator with each slave generator being controlled by an associated slave generator control unit with alternating current generated by each slave generator being at least locked in phase to alternating current generated by a master generator controlled by a master generator control unit wherein: the master generator control unit includes a master count generator for generating a synchronization count varying from a minimum to a maximum during each cycle of the alternating current generated by the master generator with the synchronization count being proportional at any time during a cycle of the alternating current to a phase of electrical current being generated by the master generator with respect to a time reference; each of the slave generator control units includes a slave count generator, each slave count generator generating a synchronization count varying from the minimum to the maximum during each cycle of the alternating current generated by the slave generator controlled by the slave generator control unit with the synchronization count of each slave count generator at any time during a cycle of alternating current generated by the slave generator controlled by the slave generator control unit being proportional to a phase of the generated alternating current measured with respect to a time reference; a transmission system is coupled to the master generator control unit and each of the slave generator control units for periodically transmitting the synchronization count from the master count generator to each slave generator control unit; each slave generator control unit has a processor for generating a correction count which is a function of a difference between the synchronization count received from the master control unit and the synchronization count of the slave count generator; and each slave generator control unit has a controller for adjusting at least the phase of the alternating current generated by the slave generator controlled by the slave generator control unit as a function of the correction count.