An energy supply (ES) is formed by a fuel cell (1), a power distributor (4) connected to the fuel cell (1), and a secondary cell (7) connected to the power distributor (4), a whole load set (WL) is connected to the power distributor (4), and a controller (8) controls the power distributor (4) to war
An energy supply (ES) is formed by a fuel cell (1), a power distributor (4) connected to the fuel cell (1), and a secondary cell (7) connected to the power distributor (4), a whole load set (WL) is connected to the power distributor (4), and a controller (8) controls the power distributor (4) to warm the energy supply (ES) by alternatively repeating a power charging distribution (S61) in which power (Gm) generated at the fuel cell (1) is distributed to the secondary cell (7) and the load set (WL), and a power discharging distribution (S71) in which a sum of power (Gr) generated at the fuels cell (1) and power (Dp) discharged from the secondary cell (7) is distributed to the load set (WL).
대표청구항▼
The invention claimed is: 1. A fuel cell system comprising: an energy supply comprising a fuel cell, a power distributor connected to the fuel cell, and a secondary cell connected to the fuel cell via the power distributor; a load set connected to the fuel cell and the secondary cell via the power
The invention claimed is: 1. A fuel cell system comprising: an energy supply comprising a fuel cell, a power distributor connected to the fuel cell, and a secondary cell connected to the fuel cell via the power distributor; a load set connected to the fuel cell and the secondary cell via the power distributor, the load set comprising auxiliary equipment for power generation of the fuel cell; and a controller configured to start a temperature rise promoting operation, when the fuel cell system is started up and if a warm-up mode is required, wherein the controller is configured to perform the temperature rise promoting operation by alternately repeatedly switching between a first power distribution unit and a second power distribution unit regardless of power consumption of the load set, for promoting concurrent temperature rise of both of the fuel cell and the secondary cell, wherein the first power distribution unit has a first power generated at the fuel cell and distributed to the secondary cell and the load set, and wherein the second power distribution unit has a combination of a second power generated at the fuel cell and a third power discharged from the secondary cell, distributed to the load set. 2. A fuel cell system according to claim 1, wherein the controller is configured to control the first power smaller than: a possible maximum generation of the fuel cell; and a sum of a power consumption at the auxiliary equipment and a possible maximum power charge to the secondary cell. 3. A fuel cell system according to claim 1, further comprising a detection system configured to detect a first temperature of the fuel cell and a second temperature of the secondary cell, wherein the controller is configured to have: the first power increase, as the first temperature is lower in rising speed than the second temperature; and the second power decrease and the third power increase, as the first temperature is higher in rising speed than the second temperature. 4. A fuel cell system according to claim 1, wherein the controller is configured to control the first power within a limited range depending on an SOC of the secondary cell. 5. A fuel cell system according to claim 1, wherein the controller is configured to: have the second power limited within a range higher than a difference between the third power and a fourth power to be consumed at the auxiliary equipment; and control the power distributor to interrupt power supply from the fuel cell, as the third power is higher than the fourth power. 6. A fuel cell system according to claim 5, wherein the controller is configured to limit the third power, as the third power is higher than the fourth power. 7. A fuel cell system according to claim 1, wherein the controller is configured to set a target SOC of the secondary cell such that power generation at the fuel cell is allowed to be greater in variation. 8. A fuel cell system according to claim 7, wherein the controller is configured: to be responsible for an upper limit of the target SOC to decrease the second power within a range higher than a difference between the third power and a fourth power to be consumed at the auxiliary equipment; and to have the second power minimized, as the third power is higher than the fourth power. 9. A fuel cell system according to claim 7, wherein the controller is configured to be responsible for a lower limit of the target SOC to increase the first power within a range lower than a sum of a fourth power to be consumed at the auxiliary equipment and a possible charge to the secondary cell. 10. A fuel cell system according to claim 1, wherein the controller is configured to have a fourth power to be consumed at the auxiliary equipment, set higher than a reference consumption required for power generation of the fuel cell. 11. A fuel cell system according to claim 10, wherein the auxiliary equipment comprises an oxidizer supply configured to supply an oxidizer to the fuel cell, and wherein the controller is configured to increase power consumption at the oxidizer supply for the oxidizer to be supplied by an increased flow rate at an increased pressure, to increase the fourth power. 12. A fuel cell system according to claim 10, wherein the auxiliary equipment further comprises a cooling system configured for a water cooling of the fuel cell, with a cooling water line having a radiator provided with a cooling fan, and a bypass member to bypass the radiator, and wherein the controller is configured for operation of the bypass member to increase power consumption at the cooling fan, to increase the fourth power. 13. A fuel cell system according to claim 10, wherein the controller is configured to control the fourth power within a range lower than a sum of the second power and the third power. 14. A control method of a fuel cell system comprising an energy supply comprising a fuel cell, a power distributor connected to the fuel cell, and a secondary cell connected to the fuel cell via the power distributor, and a load set connected to the fuel cell and the secondary cell via the power distributor, the load set comprising auxiliary equipment for power generation of the fuel cell, the control method comprising: promoting concurrent temperature rise of both of the fuel cell and the secondary cell by alternately repeatedly switching between a first distribution unit and a second power distribution unit regardless of power consumption of the load set, wherein the first power distribution unit has a first power generated at the fuel cell and distributed to the secondary cell and the load set, and wherein the second power distribution unit has a combination of a second power generated at the fuel cell and a third power discharged from the secondary cell, distributed to the load set; and starting the promoting concurrent temperature rise when the fuel cell system is started up and if a warm-up mode is required. 15. A fuel cell system comprising: an energy supply comprising a fuel cell, a power distributor connected to the fuel cell, and a secondary cell connected to the fuel cell via the power distributor; a load set connected to the fuel cell and the secondary cell via the power distributor; and a controller configured to start a temperature rise promoting operation to perform a warm-up control, when the fuel cell system is started up and if a warm-up mode is required, wherein the controller is configured to perform the temperature rise promoting operation by alternately repeatedly switching between a first power distribution unit and a second power distribution unit regardless of power consumption of the load set, for promoting temperature rise of the energy supply, wherein the first power distribution unit has a first power generated at the fuel cell and distributed to the secondary cell and the load set, and wherein the second power distribution unit has a combination of a second power generated at the fuel cell and a third power discharged from the secondary cell, distributed to the load set.
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이 특허에 인용된 특허 (4)
Yamada Makoto (Katano JPX) Tsukamoto Kazuyoshi (Osaka JPX), Controller for fuel cell power system.
Nonobe Yasuhiro,JPX, Power supply system, electric vehicle with power supply system mounted thereon, and method of charging storage battery included in power supply system.
Kimura Yoshio,JPX ; Nonobe Yasuhiro,JPX ; Horiguchi Munehisa,JPX, Power supply system, electric vehicle with power supply system mounted thereon, and method of regulating amount of fuel.
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