This power generation system (20A) includes a plurality of power generation units (50A, 50B, 50C, . . . ) which are provided in parallel, wherein each of the power generation units (50A, 50B, 50C, . . . ) includes an expander (26) configured to be rotated by a working medium, a power generator (28)
This power generation system (20A) includes a plurality of power generation units (50A, 50B, 50C, . . . ) which are provided in parallel, wherein each of the power generation units (50A, 50B, 50C, . . . ) includes an expander (26) configured to be rotated by a working medium, a power generator (28) configured to generate power through rotation of the expander (26), a rectifier (29), a medium circulation system (22) configured to pump the working medium into the expander (26), a relay (70) configured to interrupt power between the power generator (28) and an external power system (30), an operating unit (40A, 40B) configured to be operated when maintenance starts, and a relay driving unit (71) configured to interrupt power between the power generator (28) and the external power system (30) by the relay (70) when the operating unit (40A, 40B) has been operated.
대표청구항▼
1. A power generation system comprising a plurality of power generation units which are provided in parallel to an external power system, wherein each of the power generation units comprises:an expander configured to be rotated by a working medium;a power generator configured to generate power throu
1. A power generation system comprising a plurality of power generation units which are provided in parallel to an external power system, wherein each of the power generation units comprises:an expander configured to be rotated by a working medium;a power generator configured to generate power through the rotation of the expander;a rectifier configured to rectify the power generated by the power generator and output the rectified power to the external power system;a medium distribution system configured to pump the working medium into the expander;a relay configured to interrupt power between the power generator and the external power system;an operating unit configured to be operated when maintenance of the power generation unit starts; anda relay driving unit configured to interrupt power between the power generator and the external power system by the relay based on an operation state in which the operating unit has been operated. 2. The power generation system according to claim 1, wherein the medium distribution system is a medium circulation circuit configured to circulate the working medium, andwherein the medium circulation circuit comprises:a circulation pump configured to pressurize the working medium and circulate the pressurized working medium through the medium circulation circuit;an evaporator configured to heat and evaporate the pressurized working medium using an external heat source; anda condenser configured to condense the working medium discharged from the expander. 3. The power generation system according to claim 2, further comprising: a first on-off valve provided on an upstream side of a flowing direction of the working medium with respect to a maintenance target device including at least one of the circulation pump, the evaporator, the expander, and the condenser in the medium circulation circuit to interrupt the distribution of the working medium; anda second on-off valve provided on a downstream side of the flowing direction of the working medium with respect to the maintenance target device in the medium circulation circuit to interrupt the distribution of the working medium,wherein at least one of the first on-off valve and the second on-off valve is the operating unit. 4. The power generation system according to claim 3, wherein at least one of the circulation pump and a pump configured to feed a heat medium from the external heat source to the evaporator is the operating unit. 5. The power generation system according to claim 4, further comprising: a cooling fan configured to cool the condenser;a fan driving source configured to drive the cooling fan; anda second relay configured to interrupt power between the fan driving source and a power supply of the fan driving source,wherein the relay driving unit interrupts the power between the fan driving source and the power supply of the fan driving source by the second relay when the operating unit has been operated. 6. The power generation system according to claim 3, further comprising: a cooling fan configured to cool the condenser;a fan driving source configured to drive the cooling fan; anda second relay configured to interrupt power between the fan driving source and a power supply of the fan driving source,wherein the relay driving unit interrupts the power between the fan driving source and the power supply of the fan driving source by the second relay when the operating unit has been operated. 7. The power generation system according to claim 2, wherein at least one of the circulation pump and a pump configured to feed a heat medium from the external heat source to the evaporator is the operating unit. 8. The power generation system according to claim 7, further comprising: a cooling fan configured to cool the condenser;a fan driving source configured to drive the cooling fan; anda second relay configured to interrupt power between the fan driving source and a power supply of the fan driving source,wherein the relay driving unit interrupts the power between the fan driving source and the power supply of the fan driving source by the second relay when the operating unit has been operated. 9. The power generation system according to claim 2, further comprising: a cooling fan configured to cool the condenser;a fan driving source configured to drive the cooling fan; anda second relay configured to interrupt power between the fan driving source and a power supply of the fan driving source,wherein the relay driving unit interrupts the power between the fan driving source and the power supply of the fan driving source by the second relay when the operating unit has been operated.
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이 특허에 인용된 특허 (3)
Martz Lyle F. (Verona PA) Kiscaden Roy W. (Springfield PA) Uram Robert (East Pittsburgh PA), Gas turbine and steam turbine combined cycle electric power generating plant having a coordinated and hybridized control.
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