Fuel cell system and facility management method

Abstract

To provide a fuel cell system and an equipment management method that makes it possible to suppress inappropriate user operations on a fuel cell system.SOLUTION: A fuel cell system includes an interface that accepts user operations for the fuel cell system, and a control unit that executes a predetermined process related to accepting and stopping the user operation at least from the start to the end of the stopping operation of the fuel cell system.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a fuel cell system and a facility management method. [Background technology]

[0002] There is known a facility management system that manages various information related to a plurality of facilities. The information includes basic information and maintenance information about the facility. For example, this includes the installation date, expected useful life, and rated power consumption. Includes maintenance history (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-182399 A Summary of the Invention

[0004] A fuel cell system according to a first aspect of the present invention is a fuel cell system that receives a user operation for the fuel cell system. and an interface for receiving at least a signal from the start to the end of the shutdown operation of the fuel cell system. a control unit that executes a predetermined process related to stopping the acceptance of the user operation during the period from Equipped with.

[0005] The equipment management method according to a second aspect of the present invention includes accepting a user operation for a fuel cell system. Step A and at least during the period from the start to the end of the shut-down operation of the fuel cell system and a step B of executing a predetermined process related to stopping the acceptance of the user operation. . [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a diagram showing a facility management system 100 according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing a fuel cell system 310 according to an embodiment. [Diagram 3] FIG. 3 is a diagram illustrating an equipment management device 200 according to an embodiment. [Figure 4] FIG. 4 is a diagram showing an equipment management method according to the embodiment. [Diagram 5] FIG. 5 is a diagram showing an equipment management method according to the first modified example. [Figure 6] FIG. 6 is a diagram showing a message format according to the second modification. [Figure 7] FIG. 7 is a diagram showing an equipment management method according to the third modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] The facility managed by the facility management system described in the Background Art is a fuel cell system. The fuel cell system is a system that can be operated by the user. be.

[0008] Therefore, the management device that manages the facility management system can remotely control the fuel cell system. In cases where a shutdown and restart was instructed, the fuel cell system was shut down. There is a possibility that the user may perform an operation that interferes with the stopping operation while the device is being stopped.

[0009] Therefore, the embodiment is to suppress inappropriate operations of the user on the fuel cell system. The present invention provides a fuel cell system and a facility management method that make this possible.

[0010] Hereinafter, the embodiments will be described with reference to the drawings. In the description, the same or similar parts are denoted by the same or similar reference symbols.

[0011] However, the drawings are schematic and the ratio of dimensions may differ from the actual ones. Therefore, specific dimensions should be determined with the following explanation in mind. In addition, the drawings may include parts in which the dimensional relationships or ratios are different. Of course, there are cases where this is the case.

[0012] [Embodiment] (Facility Management System) The following describes an equipment management system according to an embodiment. The facility management system 100 includes a facility management device 200, a facility 300, and a predetermined terminal 400. In FIG. 1, facilities 300A to 300C are illustrated as the facility 300. The facility management device 200 and the facility 300 are connected to a network 120. The work 120 is connected to an equipment management device 200 and a facility 300 (more specifically, The network 120 provides a line (wide area network) between the equipment management system and the The network 120 may provide a line between the management device 200 and a predetermined terminal 400. For example, the network 12 may be the Internet or a mobile communication network. The network 120 may provide a dedicated line such as a VPN. It can be considered as an outside network in the sense that it provides a line for communication with the device installed in the .

[0013] The equipment management device 200 manages the equipment installed in the facility 300. Details will be given later (see Figure 3).

[0014] The facility 300 includes a fuel cell system 310 and an EMS 320. 310 includes equipment for generating electricity using fuel gas. The EMS 320 controls the equipment installed in the facility 300. The Energy Management System (EMS) is a system that manages the fuel and electricity consumption. The connection between the pond system 310 and the EMS 320 is provided by a local area network. For example, the narrow area network is a network configured by a router installed in the facility 300. Short-range networks are Bluetooth® and Wi-SAN. The narrow area network may be a short-range communication network such as a However, the facility 300 may be considered as a home network in the sense that it provides a line for communication with the facility 300. The device to be installed in the facility 300 does not have to be installed inside the facility 300, and may be installed within the facility 300. It may be provided in.

[0015] The facility 300 may have load equipment that consumes electricity. For example, the load equipment may be These include a storage facility, lighting equipment, and AV (Audio Visual) equipment. The distributed power source may be other than the fuel cell system 310. For example, the distributed power source may be a solar It may include equipment that generates electricity using natural energy such as light, wind, or geothermal energy, and storage A pond facility may also be included.

[0016] The predetermined terminal 400 is a terminal held by a manager who manages the equipment installed in the facility 300. The predetermined terminal 400 may be a person who performs maintenance on equipment installed in the facility 300. The predetermined terminal 400 may be a terminal possessed by a power generation company, a power transmission and distribution company, or The predetermined terminal 400 may be a terminal belonging to a business such as a retail business. The predetermined terminal 400 may be a terminal belonging to a user who uses the system 310. It may be a smartphone, a tablet, or a personal computer. The predetermined terminal 400 may be connected to the fuel cell system 310 via a narrow area network and a wide area network. It is also possible to consider the above as an example of a management device connected via at least one of the above networks. good.

[0017] Here, the facility management system 100 may include a power management server. The power management server is a power flow control server that requests control of the amount of power flow from the power grid 110 to the facility 300. A message requesting control of the amount of reverse power flow from the facility 300 to the power grid 110. A control message controls a fuel cell system 310 (distributed power source) installed in the facility 300. A requested power control message or the like is transmitted to facility 300.

[0018] In the embodiment, the equipment management device 200 is connected to the fuel cell system 310 and the wide area network. The EMS 320 is an example of a management device connected to the fuel cell system 310 via a network. 1 is an example of a management device connected to the network via a narrow area network.

[0019] (Fuel Cell System) The fuel cell system according to the embodiment will be described below. FIG. 3 is a diagram showing a fuel cell system 310 according to the present invention. The fuel cell system 310 includes at least The fuel cell system 310 includes a fuel cell facility 150. The fuel cell system 310 may include a hot water storage facility 160. Here, the fuel cell system 310 includes both the fuel cell equipment 150 and the hot water storage equipment 160. The explanation will continue assuming that the fuel cell system is a cogeneration system including the above. The system 310 may be a monogeneration system that does not include the hot water storage facility 160. .

[0020] The fuel cell facility 150 is a facility that generates electricity using fuel gas. This is a facility that uses fuel gas to generate hot water or maintain water temperature. 0 has a hot water tank and stores heat generated by burning fuel or electricity generated by the fuel cell equipment 150. The heat generated by the exhaust gas is used to heat the water supplied from the hot water tank, and the heated water is then stored in the hot water tank. It is refluxed to.

[0021] As shown in FIG. 2, the fuel cell system 150 includes a fuel cell 151, a PCS 152, and a 153, a desulfurizer 154, an ignition heater 155, a radiator 156, and a control unit 157. and

[0022] The fuel cell 151 is a facility that generates electricity using fuel gas. The fuel cell 51 includes a reformer 151A and a cell stack 151B.

[0023] The reformer 151A converts the fuel from which the odorant has been removed by the desulfurizer 154 described below into a reformed gas. The reformed gas is a gas composed of hydrogen and carbon monoxide.

[0024] The cell stack 151B is heated by air (oxygen) and reformed gas supplied from a blower 153 (described later). Specifically, the cell stack 151B is made up of multiple cells. Each cell has a stacked structure, with an electrolyte sandwiched between an anode and a cathode. The fuel electrode is supplied with reformed gas (hydrogen), and the air electrode is supplied with air (oxygen). A chemical reaction occurs between the reformed gas (hydrogen) and air (oxygen) in the electrolyte, producing electricity. Power (DC power) and heat are produced.

[0025] The PCS 152 is a device that converts the DC power output from the fuel cell 151 into AC power ( Power Conditioning System).

[0026] The blower 153 supplies air to the fuel cell 151 (cell stack 151B). For example, The blower 153 is configured by a fan. The blower 153 is The cell stack 151B is cooled so that the temperature does not exceed the upper limit of the allowable temperature.

[0027] The desulfurizer 154 removes odorants contained in the fuel gas supplied from the outside. The gas may be city gas or propane gas.

[0028] The ignition heater 155 is a heater for igniting the fuel gas that has not reacted chemically in the cell stack 151B (hereinafter, This heater ignites the reaction gas (reactant gas) and maintains the temperature of the cell stack 151B at a high temperature. That is, the ignition heater 155 is configured to ignite the unburned gas leaking from the openings of the cells constituting the cell stack 151B. The ignition heater 155 ignites the reactant gas. It should be noted that the only thing required is to ignite the unreacted gas during the start-up of the fuel cell system 150. After the unreacted gas starts to burn, the fuel is discharged from the cell stack 151B. The unreacted gas that gradually overflows from the cell stack 151B continues to burn, and the temperature of the cell stack 151B increases. The temperature is maintained at a high temperature.

[0029] The radiator 156 is a heat exchanger for the water flowing from the hot water storage facility 160 to the fuel cell facility 150 (hereinafter, referred to as "reflux"). The radiator 156 cools the return water so that the temperature of the return water does not exceed the upper limit of the allowable temperature. The cell stack 151B is heated so that the temperature of the cell stack 151B does not exceed the upper limit of the allowable temperature. Cooling may be performed.

[0030] The control unit 157 controls the fuel cell 151, the PCS 152, the blower 153, the desulfurizer 154, and the ignition. This includes a circuit for controlling the heater 155 and the control unit 157 .

[0031] The reformer 151A, the blower 153, the desulfurizer 154, the ignition heater 155, and the control unit 157 , which is an example of an auxiliary device that assists the operation of the cell stack 151B. may be treated as an accessory.

[0032] The operating state of the fuel cell system 310 is a power generating state (also called "power generating"), a stopped state (stopped state), (also called "stopped"), running state (also called "starting"), stopped operation state (also called "stopping operation"). This includes the idle state (also called idle), etc.

[0033] The power generating state is a state in which power is being generated by the fuel cell 151. The start-up state is a state in which power is being generated by the fuel cell 151. The stop state is a state in which the operation of the fuel cell 151 stops. The stop operation state is the state where the power generation state is changed to the stop state. The idle state is Although no power is being output from the fuel cell system 310, the temperature of the cell stack 151B The predetermined temperature is the state in which the cell stack 151 in the power generation state is maintained at the predetermined temperature. The temperature may be approximately the same as the power generation temperature of B (for example, 650°C to 1000°C), or may be higher than the power generation temperature. In the idle state, the auxiliary temperature may be as low as possible (for example, 450°C to 600°C). The power of the machine may be provided by the power output from the fuel cell 151, or other distributed power sources. (For example, facilities that generate electricity using natural energy or battery storage facilities) It may be powered by electricity or may be powered by electricity supplied from the power grid 110. .

[0034] In the example shown in FIG. 2, the control unit 157 is provided in the fuel cell equipment 150. However, However, the embodiment is not limited thereto. A remote control is an example of an interface that accepts user operations on the system 310. The control unit 157 may be provided in a remote controller. The functions of the control unit 157 are implemented by the control unit 157 provided in the fuel cell equipment 150 and the remote The control unit 157 may be realized by both the PCS 152 and the controller. may be considered to be part of

[0035] In the embodiment, the control unit 157 is configured with a memory, a CPU, etc. At least during the period from the start to the end of the shut-down operation of the fuel cell system 310, the user Execute a predetermined process related to stopping the reception of the operation. Here, the predetermined process is The predetermined process may be a mask process for stopping the reception of a user operation. The predetermined process may be a notification process for notifying a user that the fuel cell system It may be a notification process to notify the user that the stop operation of 310 is in progress. These notification processes may be performed in response to a user operation. The predetermined process may be performed without receiving a user operation. Notifying the user of the time required from the start to the end of the shutdown operation of the battery system 310 The predetermined process may be a notification process for notifying the completion of the stop operation of the fuel cell system 310. The notification process may be a process of notifying the user of the remaining time required until the fuel is discharged. The fact that the battery system 310 is in the process of being shut down is notified to the fuel cell system 310. The time required from the start to the end of the shut-down operation of the fuel cell system 310 The time elapsed from the start of the shutdown operation to the present may be included. The time required to shut down the fuel cell system 310 from start to finish is The remaining time required until completion may also be included. The fact that an operation is being performed may be notified as an absolute value or may be notified by the fuel cell system. If the time required from the start to the end of the stopping operation of the camera 310 is set to 100%, for the time required from the start to the end of the shutdown operation of the fuel cell system 310. The time elapsed from the start of the shutdown operation of the fuel cell system 310 to the present time or / and the fuel cell system The time remaining until the system 310 is shut down is reported as a percentage of the time remaining until the system 310 is shut down. The predetermined process may include at least one of a mask process and a notification process. That's fine too.

[0036] In such a case, the control unit 157 determines whether the stop operation of the fuel cell system 310 is yet to be completed. In the case of a remote stop operation, the above-mentioned predetermined process may be executed. According to an instruction from a management device (here, the equipment management device 200) that manages the battery system 310, In other words, the control unit 157 stops the fuel cell system 310. When the stopping action is a user operation, the above-described predetermined process does not need to be executed.

[0037] (Equipment management device) The following describes an equipment management device according to an embodiment. The equipment management device 200 includes a management unit 210, a communication unit 220, and a control unit 230.

[0038] The management unit 210 is configured with a storage medium such as a non-volatile memory and / or a HDD. The information relating to a plurality of facilities 300 is managed.

[0039] The management unit 210 stores basic information about the equipment installed in each of the multiple facilities 300. For example, the management unit 210 may store the facility name, facility ID, equipment name, equipment ID, installation year, and age. The facility name is the name of the facility 300 in which the equipment is installed. The facility ID is an identifier for identifying the facility 300. The facility name is the name of the facility. The equipment ID is an identifier that identifies the equipment. The installation year is the year the equipment was installed. The age is The useful life is the number of years since the equipment was installed. This information indicates the period during which the equipment can be used properly after it is installed.

[0040] The management unit 210, for each of the plurality of facilities 300, For example, the management unit 210 may store maintenance information for the equipment installed in the facility. Name, equipment name, maintenance date, maintenance overview and maintenance details are stored in association with each other. The management unit 210 stores the information together with the facility ID and the equipment ID in association with each other. The facility name and equipment name are as described above. The maintenance date is the date of the maintenance. The maintenance summary is information that shows the summary of the maintenance. The maintenance details are information showing details of the maintenance. The maintenance information shall include at least the period (scheduled period) during which the equipment will undergo maintenance in the future. The maintenance information should include the information on past maintenance of the equipment. It may also include a maintenance period.

[0041] For example, maintenance includes inspections to check the deterioration of equipment and minor repairs during inspections. This includes maintenance to correct equipment malfunctions, repairs to correct equipment defects, and replacement of existing equipment with new equipment. .

[0042] The communication unit 220 is configured by a communication module, and communicates with the network 120. The communication unit 220 communicates with the facility 300 and the predetermined terminal 400 via the fuel cell system 31. You may send messages to 0.

[0043] The control unit 230 is configured with a memory, a CPU, etc., and controls the equipment management device 200. The control unit 230 controls each component provided in the fuel cell system 310 based on the state of the fuel cell system 310. In accordance with the above, control may be performed to arrange for maintenance of the fuel cell system 310.

[0044] (Equipment management method) The equipment management method according to the embodiment will be described below. The flow shown in FIG. This is a flow related to the execution of a predetermined process, and is executed at regular intervals.

[0045] As shown in FIG. 4, in step S10, the control unit 157 The commands received by the remote controller are The command may be a command input by a user or a command instructed by the equipment management device 200. It's fine.

[0046] In step S11, the control unit 157 determines that the stop operation has been performed in the process of step S10. If the determination result is YES, the control unit 157 proceeds to step If the determination result is NO, the control unit 157 executes the process of step S12. Exit.

[0047] Here, the control unit 157 determines whether the shutdown operation of the fuel cell system 310 is a remote shutdown operation. In such a case, the control unit 157 may determine whether the fuel cell system If the stopping operation of the control system 310 is a remote stopping operation, the process of step S12 is executed. When the shut-down operation of the fuel cell system 310 is not a remote shut-down operation, the control unit 157 executes a series of End processing.

[0048] In step S12, the control unit 157 performs at least one of the mask process and the notification process. The specified process including one of the above is executed.

[0049] (Action and Effects) In an embodiment, the fuel cell system 310 may include a step of initiating a shutdown operation of the fuel cell system 310. During the period from the start to the end, a predetermined process is executed to stop accepting user operations. According to such a configuration, the fuel cell system 310 can be prevented from being stopped by a user operation or the like. In this way, inappropriate operations by the user on the fuel cell system 310 can be suppressed.

[0050] [Change Example 1] The following describes a first modification of the embodiment. This article will mainly explain the differences between the two.

[0051] Specifically, in the embodiment, the fuel cell system 310 determines whether to execute a predetermined process. As an example of a condition for determining whether or not the shut-down operation of the fuel cell system 310 is a remote shut-down operation, In contrast, in the first modification, the fuel cell system 310 executes a predetermined process. We will explain variations in the conditions for determining whether or not a

[0052] In the first modification, the fuel cell system 310 (control unit 157) is If the stop operation of step 10 is not canceled within a predetermined time (for example, 10 seconds), the above-mentioned predetermined In other words, the fuel cell system 310 (control unit 157) executes the process. If the shutdown action of the system 310 is cancelled within a predetermined time (for example, 10 seconds), the above According to this configuration, it is not necessary to execute the predetermined process. This allows the user to perform the above-mentioned operations while suppressing inappropriate operations.

[0053] In the first modification, the fuel cell system 310 (control unit 157) is When the stop operation of 10 is a leakage detection avoidance operation, the above-mentioned predetermined process is executed. According to such a configuration, the gas leakage detection avoidance operation is prevented from being hindered by an inappropriate operation by the user. The situation is contained.

[0054] In general, a gas meter connected to the fuel cell system 310 is used to measure the time that gas is used. If the value exceeds the threshold, a gas leak is detected. The gas meter may detect a gas leak when the amount of gas used exceeds a predetermined value.

[0055] Under such a premise, the leakage detection and avoidance operation is performed as a guard against the fuel cell system 310. A gas leak is mistakenly suspected even though no gas leak has occurred due to the continuous supply of gas. This is an operation to stop the fuel cell system 310 in order to avoid a situation where the fuel cell system 310 is detected as a That is, to prevent erroneous gas leakage detection by a gas meter connected to the fuel cell system 310. To prevent this, the operation of the fuel cell system 310 is stopped. The operation is performed at a predetermined cycle (for example, once a month).

[0056] (Equipment management method) The equipment management method according to the first modification will be described below. The flow shown in FIG. This is a flow related to the execution of a predetermined process, and is executed at regular intervals.

[0057] As shown in FIG. 5, in step S20, the control unit 157 The commands received by the remote controller are The command may be a command input by a user or a command instructed by the equipment management device 200. It's fine.

[0058] In step S21, the control unit 157 determines that the stop operation has been performed in the process of step S20. If the determination result is YES, the control unit 157 proceeds to step If the determination result is NO, the control unit 157 executes the process of step S22. Exit.

[0059] Here, the control unit 157 determines whether the shutdown operation of the fuel cell system 310 is a remote shutdown operation. In such a case, the control unit 157 may determine whether the fuel cell system If the stopping operation of the control system 310 is a remote stopping operation, the process of step S22 is executed. When the shut-down operation of the fuel cell system 310 is not a remote shut-down operation, the control unit 157 executes a series of End processing.

[0060] In step S22, the control unit 157 waits a predetermined time (for example, If the result of the determination is YES, the control unit 157 If so, the control unit 157 executes the process of step S23. If so, the series of processes ends.

[0061] In step S23, the control unit 157 detects whether the shut-down operation of the fuel cell system 310 has been completed. It is determined whether or not the detection avoidance operation is performed. If the determination result is YES, the control unit 157 If the result of the determination is NO, the control unit 157 executes the process of step S24. The processing of the series is terminated.

[0062] Here, whether the stopping operation of the fuel cell system 310 is a leakage detection avoidance operation or not is determined based on the gas The determination is made based on whether the difference between the time to start the leakage detection and the current time is within a predetermined time. That is, when the difference is within a predetermined time, the control unit 157 The operation of stopping the fuel cell system 310 may be determined as the leakage detection avoidance operation. 157 is a stop operation of the fuel cell system 310 when the difference is other than a predetermined time. Alternatively, it may be determined that the action is not a leak detection avoidance action.

[0063] In step S24, the control unit 157 performs at least one of the mask process and the notification process. The specified process including one of the above is executed.

[0064] In the flow shown in FIG. 5, at least one of step S22 and step S23 One of them may be omitted. That is, the control unit 157 waits a predetermined time after the stop operation is requested. Even if no time has passed, the operation of stopping the fuel cell system 310 is an operation for avoiding leakage detection. In this case, the control unit 157 may execute a predetermined process. Even if the stop action is not a leak detection avoidance action, the specified time has elapsed since the stop action was requested. If so, a predetermined process may be executed.

[0065] [Change Example 2] The following describes a second modification of the embodiment. This article will mainly explain the differences between the two.

[0066] Specifically, in the second modification, the equipment management device 200 transmits the following to the fuel cell system 310: The message sent includes an information element indicating the type of shutdown of the fuel cell system 310. Based on such information elements, the system 310 (control unit 157) controls the fuel cell system It is determined whether the stop operation of 310 is a remote stop operation.

[0067] For example, a message sent from the equipment management device 200 to the fuel cell system 310 is As shown in FIG. 6, the header, stop type, mask type, and operation mode are included. In this case, the mask type may be omitted.

[0068] The header contains information indicating the source of the message and the destination of the message. The stop type is a type of the stop operation of the fuel cell system 310 when the command operation is a stop operation. For example, the type of the stop action may be a remote stop action, The mask type indicates whether or not the above-mentioned predetermined process is to be executed. An instruction operation is an information element that specifies the operation of the fuel cell system 310. For example, the specified operation may be a shutdown operation of the fuel cell system 310. The operation may be a power generation operation of the fuel cell system 310, or a change in the output power of the fuel cell system 310. may be also possible.

[0069] If the message does not include a mask type, the fuel cell system 310 It may be determined whether or not to execute a predetermined process based on the stop type included in the stop type. The fuel cell system 310 includes a remote shutdown operation and a leakage detection operation. When the detected obstacle is at least one of the above-mentioned avoidance actions, it may be determined that the predetermined process is to be executed. stomach.

[0070] If the message includes a mask type, the fuel cell system 310 performs a The fuel cell system 310 may determine whether to execute a predetermined process based on the mask. Even if the type is an information element indicating that a predetermined process is to be executed, the fuel cell system 310 If the stop action is not at least one of the remote stop action and the leak detection avoidance action, Conversely, the fuel cell system 310 may determine not to execute the predetermined process. Even if another information element indicates that a predetermined process is not to be executed, the fuel cell system 310 When the stop operation is at least one of a remote stop operation and a leak detection avoidance operation, , it may be determined that a predetermined process is to be executed.

[0071] [Change Example 3] The following describes a third modification of the embodiment. This article will mainly explain the differences between the two.

[0072] Specifically, in the third modification, the predetermined process is performed by a maintenance company of the fuel cell system 310. or a management device (for example, an equipment management device 200) that manages the fuel cell system 310. 00) is instructed. With this configuration, the Since the predetermined process is cancelled by this, it is possible to suppress inappropriate operations by the user.

[0073] (Equipment management method) The following describes a facility management method according to the third modification. The flow shown in FIG. This is a flow related to the cancellation of a predetermined process, and is executed at regular intervals.

[0074] As shown in FIG. 7, in step S30, the control unit 157 The commands received by the remote controller are The command may be a command input by a user or a command instructed by the equipment management device 200. It's fine.

[0075] In step S31, the control unit 157 executes a predetermined process in the process of step S30. The control unit 157 judges whether or not a release has been requested. If the judgment result is YES, The control unit 157 executes the process of step S32. The processing ends.

[0076] In step S32, the control unit 157 determines that the predetermined process is to be released by the maintenance company. If the result of the determination is YES, the control unit 157 proceeds to step S34. If the determination result is NO, the control unit 157 executes the process of step S33. Carry out the theory.

[0077] In step S33, the control unit 157 determines that the termination of the predetermined process is instructed by the equipment management device 200. If the result of the determination is YES, the control unit 157 proceeds to step S3. 4. If the result of the determination is NO, the control unit 157 ends the series of processes. do.

[0078] In step S34, the control unit 157 performs at least one of the mask process and the notification process. Cancel the specified process including one of them.

[0079] Although not specifically mentioned in the flow shown in FIG. 7, the control unit 157 controls the fuel cell system 310 If the stopping operation of the first embodiment has not been completed, the predetermined process may not be cancelled. .

[0080] In the third modification, a predetermined process is performed according to an operation by a maintenance company or an instruction from the equipment management device 200. The process is released, but the embodiment is not limited to this. It may be released by the end of the stopping motion of the stem 310.

[0081] [Change Example 4] The fourth modification of the embodiment will be described below. This article will mainly explain the differences between the two.

[0082] Specifically, in the embodiment, the fuel cell system 310 is stopped by a remote stop operation. In contrast, in the fourth modification, the fuel cell system 3 The 10 shut-down operations include shut-down operations (abnormal shut-down operations) due to an abnormality in the fuel cell system 310. The fuel cell system 310 (control unit 157) detects whether the fuel cell system 310 is stopped or not. If it is a constant stop operation, the above-mentioned predetermined process is executed.

[0083] For example, the shut-down operation of the fuel cell system 310 includes a normal shut-down operation and an abnormal shut-down operation. The normal shutdown operation means that power generation by the fuel cell 151 is stopped, but the blower 153 or the radiator 154 is stopped. The blower 153 or the radiator 156 is used to heat the cell stack 15 without stopping the motor 156. This is an operation to stop the operation of the fuel cell system 310 while lowering the temperature of the fuel cell 1B. The abnormal stop operation is not only for power generation by the fuel cell 151 but also for the fuel cell system 310. This is an operation to stop the whole operation. A normal stop operation is, for example, in response to a relatively minor abnormality. or operations performed during routine maintenance of the fuel cell system 310. On the other hand, an abnormality stop action is an action that is executed in response to, for example, a relatively serious abnormality. This is an operation that is performed when a normal operation or normal shutdown cannot be performed.

[0084] Furthermore, the shut-down operation of the fuel cell system 310 includes a manual shut-down operation and an automatic shut-down operation. The manual stop operation is a stop operation caused by a user operation. This is a stop operation caused by the stop function of the system 310. This is an automatic stopping operation by the fuel cell system 310 without the need for manual operation. The automatic stop operation includes the normal stop operation and the abnormal stop operation described above. This includes normal shutdown and abnormal shutdown. Furthermore, the shutdown of the fuel cell system 310 is performed according to the setting. The operation of shutting down the fuel cell system 310 by remote control from the equipment management device 200 (i.e. Such actions may be counted as manual stops. may be counted as an automatic stop.

[0085] The abnormal stop operation is performed, for example, when the concentration of gas in the fuel cell system 310 falls outside a predetermined range. It may be a shutdown action performed in response to an event, such as a decrease in the concentration of CO in the fuel cell system 310. The shutdown action may be performed in response to an event in which the fuel cell system temperature exceeds an upper threshold. The temperature of the components (cell stack, fuel catalyst, etc.) installed in the system 310 exceeds the upper threshold. The stop action may be performed in response to an abnormality (high temperature). The temperatures of the components may be detected by sensors provided in the fuel cell system 310. The abnormality stop operation is that the fuel cell system 310 automatically stops depending on the detection result of the sensor. An automatic stop operation may be performed, and the fuel cell system may be stopped by notifying the user of the detection result of the sensor. The system 310 may be stopped manually by a user operation. For example, the components provided in the fuel cell system 310 (for example, the sensor, the blower 153, the radiator The abnormal stopping action may be an action performed in response to an abnormality in the motor 156, etc. An automatic shutdown function that automatically shuts down the fuel cell system 310 when an abnormality in a component is detected. The fuel cell system 3 may be operated in such a manner that the user is notified of the result of the detection of an abnormality in the part. The operation 10 may be a manual stop operation that is stopped by a user operation.

[0086] The normal stopping operation is a stopping operation other than an abnormal stopping operation. The temperature of a component (such as a cell stack) in the battery system 310 falls below a lower threshold. The temperature of the fuel cell system may be determined by the temperature of the fuel cell component. The normal stop operation may be detected by a sensor provided on the system 310. The fuel cell system 310 may be automatically stopped depending on the result of the detection. The fuel cell system 310 is stopped by the user by notifying the user of the detection result. Furthermore, the normal stopping operation may be a stopping operation that is executed in response to a communication abnormality. The communication abnormality may be a stop operation. Even if there is a communication error between components in the fuel cell system 310, such as the Alternatively, the communication error may be a communication error between the fuel cell system 310 and the EMS 320. The normal stop may be an abnormality in which the state in which communication is not possible continues for a predetermined period of time or more. The operation is an automatic shutdown in which the fuel cell system 310 is automatically shut down when a communication abnormality is detected. The fuel cell system may be stopped by notifying the user of the result of the communication abnormality. The normal shutdown operation may be a manual shutdown operation in which the power grid 110 is stopped by a user operation. The abnormality in the power grid 110 may be a power outage. The normal shutdown operation may be performed by the power grid 11. The fuel cell system 310 is automatically stopped when an abnormality is detected. The result of the detection of an abnormality in the power grid 110 may be notified to the user. Alternatively, the system 310 may be stopped manually by a user operation.

[0087] [Other embodiments] The present invention has been described with reference to the above-mentioned embodiments. However, the present disclosure should not be construed as limiting the present invention. Alternative embodiments, implementations and operational techniques will become apparent.

[0088] In the embodiment, the interface that accepts user operations is a remote controller. However, the embodiment is not limited to this. The interface receives commands sent from a device that controls the fuel cell system 310. The receiving module may be a receiving module provided in a remote controller. may be provided in the control unit 157, or may be provided in the PCS 152. The device that controls the fuel cell system 310 may be the equipment management device 200, and the EM It may be S320 or the predetermined terminal 400.

[0089] The remote shutdown operation described in the embodiment may be performed according to a predetermined schedule. The schedule may be programmed into the equipment control device 200, 200 may be input by an operator.

[0090] The leak detection and avoidance operations described in the embodiments may be performed according to a predetermined schedule. The schedule may be programmed into the fuel cell system 310 and The fuel consumption may be input by an operator of the battery system 310, and may be input from the equipment management device 200. The battery system 310 may be configured to:

[0091] In the embodiment, the management unit 210 is provided in the equipment management device 200. For example, the management unit 210 may be a facility management system. Alternatively, the information processing unit 202 may be provided in a server connected to the management device 200 .

[0092] In the embodiment, the fuel cell system 310 is connected to the equipment management device 200 via the EMS 320. However, the embodiment is not limited to this. The fuel cell system 310 does not directly communicate with the equipment management device 200. This is also possible.

[0093] Although not specifically mentioned in the embodiment, the EMS 320 provided in the facility 300 is not necessarily It does not have to be provided within the facility 300. For example, some of the functions of the EMS 320 may be provided within the facility 300. It may be provided by a cloud server installed on the Internet. The EMS 320 may be considered to include a cloud server. It may be considered as a management server.

[0094] The fuel cell device 150 is a solid oxide fuel cell (SOFC). However, the fuel cell equipment 150 is a polymer electrolyte fuel cell (P EFC: Polymer Electrolyte Fuel Cell) Phosphoric Acid Fuel Cel (PAFC) Molten Carbonate Fuel Cells (MCFCs) may be used. te Fuel Cell).

[0095] In addition, Japanese Patent Application No. 2017-228325 (filed on November 28, 2017) The entire contents of which are incorporated herein by reference.

Claims

1. 1. A fuel cell system comprising: an interface that accepts user operations for the fuel cell system; a control unit that executes a predetermined process related to stopping the acceptance of the user operation at least during a period from the start to the end of the shutdown operation of the fuel cell system, The control unit executes the predetermined process if the stop operation of the fuel cell system is not canceled within a predetermined time by an instruction from the interface.

2. The fuel cell system according to claim 1 , wherein the predetermined process includes a mask process for stopping acceptance of the user operation.

3. 3. The fuel cell system according to claim 2, wherein the predetermined process is a notification process for notifying a user that acceptance of the user operation has been stopped.

4. 4. The fuel cell system according to claim 1, wherein the predetermined process is a notification process for notifying a user that a shutdown operation of the fuel cell system is in progress.

5. 5. The fuel cell system according to claim 1, wherein the operation for shutting down the fuel cell system is a remote shut down operation executed in response to an instruction from a management device that manages the fuel cell system.

6. The fuel cell system according to claim 5 , wherein the control unit executes the predetermined process when the shut-down operation of the fuel cell system is the remote shut-down operation.

7. 7. The fuel cell system according to claim 5, wherein the remote shutdown operation is performed according to a predetermined schedule.

8. 8. The fuel cell system according to claim 5, wherein the instruction from the management device includes an information element indicating that the shutdown operation of the fuel cell system is the remote shutdown operation.

9. 9. The fuel cell system according to claim 1, wherein the predetermined process is cancelled by an operation by a maintenance company of the fuel cell system or by an instruction from a management device that manages the fuel cell system.

10. 10. The fuel cell system according to claim 1, wherein the shut-down operation of the fuel cell system includes a shut-down operation caused by an abnormality in the fuel cell system.

11. 11. The fuel cell system according to claim 1, wherein the interface is a remote controller operated by a user.

12. 12. The fuel cell system according to claim 1, wherein the interface is a receiving module that receives a command transmitted from a device that controls the fuel cell system.

13. A step A of accepting a user operation for the fuel cell system; and a step B of executing a predetermined process related to stopping the acceptance of the user operation at least during a period from the start to the end of the shutdown operation of the fuel cell system, The facility management method, wherein step B includes a step of executing the predetermined process if the shutdown operation of the fuel cell system is not canceled within a predetermined time period by an instruction from the interface that accepts the user operation.

Images