Abstract: A solar thermal power generation system is provided with a low-temperature heat collection device; a steam separator; a first hot water line that feeds water separated by a steam separator to the low-temperature heat collection device; a low-temperature heat storage device provided in the first hot water line; a high-temperature heat collection device; a steam turbine; a first main steam line that feeds superheated steam to the steam turbine; a second main steam line that branches from the first main steam line and joins with the first main steam line; a high-temperature heat storage device provided in the second main steam line; a low-temperature bypass line that bypasses the low-temperature heat collection device and; and a high-temperature bypass line that bypasses the high-temperature heat collection device and connects a steam outlet-side of the steam separator to an inlet-side of the high-temperature heat storage device.

Abstract: Provided are a heliostat calibration, device and a heliostat calibration method that can suppress time-change-dependent control error increases and can reduce calibration frequency. The present invention is provided with: an initial position information acquisition unit that acquires initial position information for a heliostat; a theoretical value calculating unit that calculates from the heliostat initial position information and sun position information a theoretical value that is related to the orientation of the heliostat; a deviation calculation unit that, using as input an actual measured value for the orientation of the heliostat, calculates the deviation between the theoretical value and the actual measured value at least two times a day; and a coordinate calibration unit that, when the deviation exceeds a threshold value, calibrates the coordinates of the heliostat such that the deviation is at or below the threshold value.

Abstract: The inventive solar heat collection system reduces the risk of damage to heat transfer pipes of a high-temperature heat collection device. The low-temperature heat collection device (1) heats water by sunlight heat to generate steam. The steam-water separation device (4) separates a water-steam two-phase fluid generated in the low-temperature heat collection device into water and steam. The high-temperature heat collection device (5) heats the steam separated by the steam-water separation device by use of heat of sunlight reflected by a plurality of heliostats (8), thereby generating superheated steam. The heliostat control device (13) controls angles of the plurality of heliostats so that metal temperature of the high-temperature heat collection device is maintained not to be higher than a threshold temperature set to prevent overshoot of steam temperature at an outlet of the high-temperature heat collection device.

Abstract: A deviation between an inlet-outlet temperature difference of a first superheater part and an inlet-outlet temperature difference of each of second superheater parts can be reduced so that a difference in thermal expansion between the first superheater part and the second superheater part can be reduced. It is therefore possible to avoid damage on heat transfer pipes.

Abstract: Provided is an inexpensive and simple solar power system. A solar power system according to the present invention includes: a heat collection apparatus (2, 4); a steam turbine (5), a power generator (16); a superheated steam supply line which supplies the steam turbine with superheated steam generated by the heat collection apparatus; a water supply line which condenses the steam expelled from the steam turbine into water and supplies the condensed water to the heat collection apparatus; a heat storage device (8) which has a heat storage medium; a first line which branches from the superheated steam supply line and which supplies the heat storage device with the superheated steam flowing through the superheated steam supply line; a second line which branches from the water supply line and which supplies the heat storage device with the water flowing through the water supply line; and a third line which supplies the steam turbine with superheated steam generated by the heat storage device.

Abstract: Provided are a heliostat calibration, device and a heliostat calibration method that can suppress time-change-dependent control error increases and can reduce calibration frequency. The present invention is provided with: an initial position information acquisition unit that acquires initial position information for a heliostat; a theoretical value calculating unit that calculates from the heliostat initial position information and sun position information a theoretical value that is related to the orientation of the heliostat; a deviation calculation unit that, using as input an actual measured value for the orientation of the heliostat, calculates the deviation between the theoretical value and the actual measured value at least two times a day; and a coordinate calibration unit that, when the deviation exceeds a threshold value, calibrates the coordinates of the heliostat such that the deviation is at or below the threshold value.

Abstract: The invention is to reduce the risk of damage to heat transfer pipes of a high-temperature heat collection device. A solar heat collection system is provided with a low-temperature heat collection device (1) which heats supplied water by use of sunlight heat to thereby generate steam; a steam-water separation device (4) which separates a water-steam two-phase fluid generated by the low-temperature heat collection device into water and steam; a high-temperature heat collection device (5) which heats the steam separated by the steam-water separation device by use of heat of sunlight which is reflected by a plurality of heliostats (8) to thereby generate superheated steam; and a heliostat control device (13) which controls angles of the plurality of heliostats so that metal temperature of the high-temperature heat collection device cannot be higher than a threshold temperature which is set in order to prevent overshoot of steam temperature at an outlet of the high-temperature heat collection device.

Abstract: A deviation between an inlet-outlet temperature difference of a first superheater part and an inlet-outlet temperature difference of each of second superheater parts can be reduced so that a difference in thermal expansion between the first superheater part and the second superheater part can be reduced. It is therefore possible to avoid damage on heat transfer pipes.

Abstract: Provided is an inexpensive and simple solar power system. A solar power system according to the present invention includes: a heat collection apparatus (2, 4); a steam turbine (5), a power generator (16); a superheated steam supply line which supplies the steam turbine with superheated steam generated by the heat collection apparatus; a water supply line which condenses the steam expelled from the steam turbine into water and supplies the condensed water to the heat collection apparatus; a heat storage device (8) which has a heat storage medium; a first line which branches from the superheated steam supply line and which supplies the heat storage device with the superheated steam flowing through the superheated steam supply line; a second line which branches from the water supply line and which supplies the heat storage device with the water flowing through the water supply line; and a third line which supplies the steam turbine with superheated steam generated by the heat storage device.