JP2012205372A - Power management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately manage power consumption of an electrical apparatus M used in household.SOLUTION: An electrical apparatus Mb incapable of transmitting power consumption schedule information is connected to a power receptacle 30 through a communication adapter 80. The communication adapter 80 estimates power consumption of the electrical apparatus Mb connected to the power receptacle 30 based on connection change history information showing a connection change history of the connected electrical apparatus Mb, and power supply history information showing a supplied history of power supplied from the power receptacle 30. The communication adapter 80 transmits power consumption schedule information showing the estimated power consumption when detecting operation start of the electrical apparatus Mb.

Description

  The present invention relates to a power management system that manages power supply to a plurality of electrical devices.

  Conventionally, there has been proposed a power management system for managing the operation of an electric device so that the total power consumption of the electric devices in the home does not exceed the contracted capacity and the breaker does not operate. For example, in the indoor device power control system proposed in Patent Literature 1, the usage priority order of home appliances and the threshold value of the power usage rate (the ratio of the power usage to the contracted capacity) are stored, and the power usage status is stored. Monitoring is performed so that when the power usage rate exceeds a threshold, a warning or power supply interruption is performed.

JP 2003-319572 A

  In such a conventional system, if the power consumption is surely maintained within the contracted capacity, the power consumption of each home appliance is stored in advance in the power management device, and the operation of the home appliance is restricted based on the power consumption. It needs to be possible. However, there are cases where the power management apparatus cannot grasp the power consumption of all electrical devices.

  If the electrical device has a communication function capable of communicating with the power management apparatus, power consumption information indicating the power consumed by the electrical device can be transmitted from the electrical device. Therefore, if the electrical device in the home is an electrical device having such a communication function, by transmitting power consumption information from the electrical device, the power required for the operation of the electrical device and the current household power The operation of the electric device can be appropriately restricted from the consumption margin. However, when using an electrical device that does not have a communication function (cannot transmit power consumption information), the power management device cannot grasp the power required for the operation of the electrical device. Can not do. For this reason, a breaker may operate and a power failure may occur.

  The present invention has been made to address the above-described problems, and an object thereof is to appropriately perform power management.

In order to achieve the above object, the feature of the present invention is based on power consumption information acquisition means (100, S32) for acquiring information on power consumption transmitted from an electric device, and information on the acquired power consumption. In a power management system comprising power management means (100, S33 to S38) for managing power supply to an electrical device so that the total power consumed by the plurality of electrical devices does not exceed a preset upper limit value ,
History information acquisition means (90, S10) for acquiring connection change history information representing a connection change history of an electrical device in the power outlet (30) and power supply history information representing a supply history of power supplied from the power outlet. And power consumption estimation means (90, S11 to S13) for estimating the power consumption of the electrical equipment connected to the power outlet based on the acquired connection change history information and power supply history information. is there.

  In the present invention, the power consumption information acquisition unit acquires information on power consumption transmitted from the electrical device, and the power management unit calculates the total power consumed by the plurality of electrical devices based on the information on power consumption. The power supply to the electrical equipment is managed so as not to exceed the preset upper limit value. For example, the power management means makes an announcement to the user regarding restrictions on power supply to the electrical equipment or restrictions on use of the electrical equipment. When such a power management system is configured, if an electric device that does not have a function of transmitting information on power consumption is used as it is, proper management cannot be performed. Therefore, the present invention includes a configuration for estimating the power consumption of an electrical device that does not have a function of transmitting information regarding power consumption.

  The history information acquisition means acquires connection change history information representing a connection change history of an electrical device at a power outlet, and power supply history information representing a supply history of power supplied from the power outlet. For example, the history information acquisition unit detects that an electrical device is connected to the power outlet, and acquires information indicating the date and time of connection as connection replacement history information. Further, the power supplied from the power outlet is detected, and the information indicating the power and date is acquired as the power supply history information.

  And a power consumption estimation means estimates the power consumption of the electric equipment connected to the power outlet based on the connection change history information and the power supply history information. For example, if there is no change in the connection of the electrical device at the power outlet after the previous use of the electrical equipment, the power supplied from the power outlet at the previous time is estimated as the power consumption of the electrical equipment connected to the power outlet. can do. In addition, if there is a change in the connection of the electrical device at the power outlet after the previous use of the electrical device, the maximum value of power consumption, the average value of power consumption, or the most recent predetermined value from the past power supply history The power consumption of the electrical device connected to the power outlet can be estimated using the maximum value of the power consumption for the number of times of use or the average value of the power consumption for the most recent predetermined number of times of use. Therefore, even if an existing electrical device that does not have a function to transmit information on power consumption is connected to a power outlet and used, the power consumed by the electrical device can be grasped in advance, so Supply management can be performed.

  Another feature of the present invention is that the power consumption estimation means performs the immediately preceding operation when there is no history of switching of electrical equipment in the power outlet after the previous power supply from the power outlet. The power supplied from the power outlet is estimated as the power consumption of the electrical equipment connected to the power outlet (S11, S13).

  If the connection of electrical equipment has not been changed at the power outlet after the previous power supply from the power outlet, the power consumption of the electrical equipment connected to the power outlet will be supplied from the power outlet immediately before It can be estimated that the power is the same as the generated power. Therefore, in the present invention, the power consumption estimation means, when there is no history of switching of electrical equipment at the power outlet after the previous power supply from the power outlet, The power supplied from is estimated as the power consumption of the electrical equipment connected to the power outlet. Therefore, it is possible to appropriately estimate the power consumption of an electrical device that does not have a function of transmitting information regarding power consumption.

  Another feature of the present invention is that, when the power consumption estimation means has a history of switching of electrical equipment in the power outlet after the previous power supply from the power outlet, the power source The maximum value in the history of the power supplied from the outlet is to be estimated as the power consumption of the electrical equipment connected to the power outlet (S11, S12).

  If the connection of an electrical device has been changed at the power outlet after the previous power supply from the power outlet, set the maximum power consumption of the electrical device that has been connected to the power outlet until now. If estimated as the power consumption of the current electrical device connected to the power outlet, the total power consumed by the plurality of electrical devices is unlikely to exceed a preset upper limit value. Therefore, in the present invention, the power consumption estimation means is supplied from the power outlet when there is a history of switching the electrical equipment at the power outlet after the power supply from the previous power outlet. The maximum value in the power history is estimated as the power consumption of the electrical equipment connected to the power outlet. Therefore, the occurrence of a power failure can be suppressed even when an electric device that does not have a function of transmitting information on power consumption is used.

  Another feature of the present invention is that it includes a device discriminating means (90, S101 to S104, S106) for discriminating whether or not the electric device connected to the power outlet has a function of transmitting information regarding power consumption. It is in.

  When the electrical device connected to the power outlet has a function for transmitting information related to power consumption, information related to power consumption is transmitted from the electrical device, so there is no need to estimate power consumption. In that case, if the power consumption is estimated, there is a possibility that the information regarding the power consumption is duplicated. Therefore, in the present invention, the device determination unit determines whether or not the electrical device connected to the power outlet has a function of transmitting information regarding power consumption. Thereby, the power management means, for example, if the electrical device connected to the power outlet has a function of transmitting information regarding power consumption, based on the information regarding power consumption transmitted from the electrical device If the electrical equipment connected to the power outlet does not have a function for transmitting information on power consumption, the power supply will be based on the information on power consumption estimated by the power consumption estimation means. The power supply to the device can be managed. As a result, according to the present invention, it is possible to appropriately grasp the total power consumed by a plurality of electrical devices, and to perform more appropriate power management.

  Another feature of the present invention is that, when the power management means (100, 80) detects the start of operation of an electrical device connected to a power outlet, it limits power supply to the electrical device (S3). Thereafter, when the power consumption of the electrical device can be permitted based on the estimated power consumption of the electrical device detected to start operation, the restriction on the power supply to the electrical device is released (S37, S4 to S6). ) That is.

  If the electrical device has a function capable of mutual communication with the power management means, before starting the operation, information on power consumption can be transmitted to the power management means, and an operation permission can be obtained from the power management means to start the operation. However, in the case of an electric device that does not have such a communication function, the operation cannot be started in such a procedure. Therefore, when the power management unit detects the start of operation of the electrical device connected to the power outlet, the power management unit temporarily limits the power supply to the electrical device. The detection of the start of operation of the electric device may be performed by detecting that a current has started to flow through a power supply path connected to the electric device, for example. The power supply may be restricted by shutting off the power supply (cutting off the power supply path) or by restricting the supplied power to a predetermined level without completely shutting off the power supply.

  And based on the estimated power consumption of the electric equipment which is going to start an operation | movement, a power management means cancels | releases the restriction | limiting of the electric power supply to an electric equipment, when the electric power consumption (operation | movement) of the electric equipment can be permitted. Thereby, even if it is an electric equipment which does not have a function which can communicate with an electric power management means, it can be used appropriately, without power failure.

Another feature of the present invention is that power consumption information acquisition means (100, S32) for acquiring information related to power consumption transmitted from the electric device, and a plurality of electric devices consume based on the acquired information regarding power consumption. In a power management system comprising power management means (100, S33 to S38) for managing power supply to an electrical device so that the total power to be generated does not exceed a preset upper limit value,
Non-information transmitting device operation detecting means (100, S111, S112) for detecting the start of operation of a non-information transmitting device (Mb) that is an electric device that has not transmitted information on the power consumption, and operation of the non-information transmitting device When the start is detected, from the state where the power supply to the non-information transmitting device is restricted, the restriction is gradually released to gradually increase the power supply to the non-information transmitting device ( 100, S113, S114) and the total power consumed by the plurality of electric devices is preset when the restriction on power supply to the non-information transmitting device is gradually released by the power supply gradually increasing means. And a notification means (100, S115, S119) for notifying that the power supply is insufficient when there is a possibility of exceeding the set upper limit value.

  In the present invention, the power consumption information acquisition unit acquires information on power consumption transmitted from the electrical device, and the power management unit calculates the total power consumed by the plurality of electrical devices based on the information on power consumption. The power supply to the electrical equipment is managed so as not to exceed the preset upper limit value. For example, an announcement is made to the user regarding restrictions on power supply to the electrical equipment or restrictions on the use of the electrical equipment. When such a power management system is configured, if an electric device that does not have a function of transmitting information on power consumption is used as it is, proper management cannot be performed. Therefore, the present invention includes a non-information transmitting device operation detecting unit, a power supply gradually increasing unit, and a notifying unit.

  The non-information transmitting device operation detecting means detects that the non-information transmitting device, which is an electric device not transmitting information related to power consumption, has started to operate. For example, it is possible to detect the start of operation of the non-information transmitting device by detecting that current has started to flow through a power supply path connected to the non-information transmitting device. When the operation start of the non-information transmitting device is detected, the power supply gradually increasing means gradually releases the restriction from the state where the power supply to the non-information transmitting device is limited, and supplies the power to the non-information transmitting device. Increase gradually. The power supply may be restricted by shutting off the power supply (cutting off the power supply path) or by restricting the supplied power to a predetermined level without completely shutting off the power supply. In addition, when the operation start of the non-information transmitting device is detected, the power supply to the non-information transmitting device is once limited, and then the power supply limitation may be gradually released. You may make it wait in the state which has restrict | limited electric power supply, and you may make it cancel | release gradually the restriction | limiting of electric power supply, when the operation start of a non-information transmission apparatus is detected.

  If the restriction is gradually released from the state where the power supply is restricted, the power supply to the non-information transmitting device gradually increases. The informing means provides power when the total power consumed by the plurality of electrical devices may exceed a preset upper limit value when restrictions on power supply to non-information transmitting devices are gradually lifted. Notify that there is a supply shortage. In this case, the power supply to the non-information transmitting device may be stopped at the same time, or the gradual increase in power supply may be temporarily stopped. By such notification, the user can recognize that the non-information transmitting device cannot be used as it is. Therefore, power management can be appropriately performed even when an existing electric device that does not have a function of transmitting information on power consumption is used.

  In the above description, in order to help the understanding of the invention, the reference numerals used in the embodiments are attached to the configuration of the invention corresponding to the embodiments in parentheses. It is not intended to be limited to the embodiment defined by.

1 is a schematic configuration diagram of a power management system according to an embodiment of the present invention. It is a schematic block diagram of a power management apparatus. It is a schematic block diagram of a vehicle charging system. It is a schematic block diagram of a communication adapter. It is a flowchart showing a power consumption estimation routine. It is a flowchart showing a power management routine. It is a flowchart showing an electric power supply control routine. It is a graph showing transition of the power consumption of household appliances, and the allocation electric power of battery charge. It is a flowchart showing the non-compliant | compatible apparatus power supply control routine which the power management apparatus as a 1st modification performs. It is a flowchart showing a part of electric power management routine which the electric power management apparatus as a 2nd modification implements. It is a flowchart showing the electric power management routine which charge ECU as a 2nd modification implements. It is a flowchart showing a part of power management routine which the power management apparatus as a 3rd modification implements. It is a flowchart showing the electric power management routine which charge ECU as a 3rd modification implements. It is a flowchart showing a part of power management routine which the power management apparatus as a 4th modification implements. It is a flowchart showing the apparatus discrimination | determination routine which the communication adapter as a 5th modification performs.

  Hereinafter, a power management system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a household power management system according to the embodiment.

  In this home, commercial power is supplied in a single-phase three-wire system, and 100V or 200V AC power can be used. A power line 11 wired from the power inlet 10 into the house is connected to a distribution board 20 via a power meter 12. The distribution board 20 includes a main breaker (not shown) and a plurality of branch breakers (not shown) branched and connected to the secondary side of the main breaker. Each feeder line 21 connected to the secondary side of the branch breaker of the distribution board is connected to the electrical equipment M in the home via the power management apparatus 100. Various electric devices M are provided in the home. FIG. 1 shows a configuration in which electric power is supplied to the electric devices M through the power outlet 30. The power supplied to the distribution board 20 is not limited to the commercial power source, and solar power generation, wind power generation, and the like can be used.

  The power management apparatus 100 is an apparatus that manages power consumption so that the total power (total current) used in the home falls within a preset contracted capacity (contract current). The power consumed at home varies greatly depending on the time of day. If the contract capacity is set based on the expected maximum value of power used so as to cope with this change, the electricity charge becomes high. Therefore, the power management apparatus 100 creates a schedule for using the electric equipment M so that the power usage is not concentrated, and lowers the peak (maximum value) of the power used. In addition, since electric power is supplied at 100 V or 200 V in the home, electric power (watt) and electric current (ampere) have a one-to-one relationship. Therefore, the power management means the same as managing the current, and does not limit either one.

  As shown in FIG. 2, the power management apparatus 100 includes a current limiting unit 110, a current sensor unit 120, and a controller 200. The current limiting unit 110 includes a current limiter 111 for each power supply line 21 branched by the distribution board 20, and each current limiter 111 is independently driven by a drive signal output from the controller 200. It is controlled to limit the current flowing through the feeder line 21. As the current limiter 111, a circuit breaker that opens and closes a power feeding path is used. The current sensor unit 120 includes a current sensor 121 for each power supply line 21, and outputs a detection signal indicating a current value for each power supply line 21 detected by the current sensor 121 to the controller 200.

  The controller 200 includes a microcomputer 210 serving as a main control unit for power management, a PLC communication unit 220, a storage unit 230, a drive circuit 240, an input interface 250, a display unit 260, an operation unit 270, and an audio announcement unit 280. And. The PLC communication unit 220 performs power line communication (PLC: Power Line Communication) with the electric device M via the feeder line 21. The storage unit 230 is a nonvolatile memory for storing various data. The drive circuit 240 outputs a drive signal to the current limiter 111 of the current limit unit 110 according to the control command output from the microcomputer 210. The input interface 250 converts the detection signal output from the current sensor 121 into a digital signal that can be read by the microcomputer 210. The display unit 260 displays various types of information such as the power consumption status in the home, the power supply schedule, the setting status, and the operation guide in accordance with the signal output from the microcomputer 210. The operation unit 270 performs various input settings and outputs an input signal to the microcomputer 210. In the present embodiment, the display unit 260 and the operation unit 270 are integrally configured by a touch panel. The sound announcement unit 280 drives a speaker and makes a sound announcement by a signal output from the microcomputer 210.

  In the present embodiment, the PLC communication is performed between the power management apparatus 100 and the electric device M. However, the communication between the electric device M and the power management apparatus 100 is performed using a home LAN. The structure to perform may be sufficient.

  A power outlet 30 is connected to the power management apparatus 100 via a feeder line 21. The power outlet 30 provided outdoors is used for charging the battery of the vehicle V. The vehicle V is a plug-in type electric vehicle that includes a battery 40 and that can charge the battery 40 from an external power source. For example, an electric vehicle that drives a driving motor with the electric power of the battery 40 is a representative example, but a plug-in hybrid vehicle including a driving motor and an internal combustion engine may be used.

  The vehicle V includes a charging device 50 for charging the battery 40. The charging device 50 is also one of the electric devices M. As shown in FIG. 3, the charging device 50 includes a power receiving connector 51 to which a charging cable 60 is connected, and a charger including an AC / DC converter that converts AC power supplied to the power receiving connector 51 into DC power. 52 and a charging control unit 70 (hereinafter referred to as a charging ECU 70) for controlling the charging of the battery 40.

  A charging switch 53 is provided in the power supply line 56 from the power receiving connector 51 to the charger 52. The charging switch 53 can be switched between an on state and an off state by a control signal from the charging ECU 70. The battery 40 is provided with an SOC detection unit 54 that detects a state of charge (SOC) that is a value indicating the state of charge of the battery 40. The SOC detection unit 54 outputs a signal representing the SOC to the charging ECU 70. Further, a current sensor 55 is provided in the secondary power supply line 56 of the charger 52. Current sensor 55 detects a charging current flowing through battery 40 or a discharging current supplied from battery 40 to the outside, and outputs a signal representing the current value to charging ECU 70.

  The charging ECU 70 includes a microcomputer 71 serving as a main control unit, a PLC communication unit 72, a storage unit 73, and an input / output interface 74. The PLC communication unit 72 is connected to the power management apparatus 100 via the charging cable 60 and the power supply line 21, and performs power line carrier communication via the charging cable 60 and the power supply line 21. The memory | storage part 73 is a non-volatile memory and memorize | stores various information regarding charge. The input / output interface 74 connects the SOC detector 54 and the current sensor 55, receives the detection signals output from the SOC detector 54 and the current sensor 55 separately, and converts them into signals that can be read by the microcomputer 71. Supply to the microcomputer 71. The input / output interface 74 connects the charger 52 and the charge switch 53, and separately outputs drive signals to the charge switch 53 and the charger 52 in accordance with control signals output from the microcomputer 71.

  The microcomputer 71 inputs the SOC output from the SOC detection unit 54, and when the SOC is lower than the first reference value, the charging switch 53 is turned on to supply power to the charger 52, and the charger 52 Is activated to charge the battery 40. When the SOC is equal to or higher than the second reference value (> first reference value), the charging switch 53 is turned off and the charger 52 is stopped to stop charging the battery. Thereby, the amount of electricity stored in the battery 40 is maintained in an appropriate range.

  The microcomputer 71 calculates the amount of electric power (ampere hour) required to charge the battery 40 based on the SOC detected by the SOC detection unit 54. Further, the microcomputer 71 can set a time zone during which the battery 40 may be charged (allowable start time and allowable end time: hereinafter referred to as an allowable operation time zone) using an operation panel (not shown). It is configured. Further, the microcomputer 71 can control the current flowing through the battery 40 by adjusting the output voltage of the charger 52. It should be noted that the allowable operation time zone of the battery 40 can be input and set from the operation unit 270 of the power management apparatus 100. Information indicating the allowable operation time zone is stored in the storage unit 73 or the storage unit 230.

  When the microcomputer 71 detects that the PLC communication unit 72 is connected to the power management apparatus 100 via the charging cable 60 and the power supply line 21, the power consumption schedule indicating the amount of power required for charging and the allowable operation time zone is displayed. Information is transmitted to the power management apparatus 100.

  Various electrical devices M are connected to a power outlet 30 provided in the house. The electrical device M has a communication function for transmitting information on power consumption and communication for transmitting information on power consumption. Some have no function. In FIG. 1, the electric device M connected to the right power outlet 30 has the communication function, and the electric device M connected to the left power outlet 30 does not have the communication function. Hereinafter, when distinguishing between the electric device M having a communication function for transmitting information on power consumption and the electric device M not having the communication function, the former is referred to as a corresponding device Ma and the latter is referred to as a non-compatible device Mb. Call it.

  The corresponding device Ma has a function of performing PLC communication with the power management apparatus 100 via the feeder line 21. The corresponding device Ma stores power consumption information indicating power (watt) required by the device, operation time information indicating the operation time, and a device ID for identifying the corresponding device in the memory. Before starting the operation, the power consumption information, the operation time information, and the device ID are transmitted to the power management apparatus 100. The power consumption information and the device ID are stored in advance in the memory, but the operation time information is stored and updated each time a setting operation is performed by the user.

  For example, when the corresponding device Ma is a television or a video, the viewing reservation time zone or the recording reservation time zone is stored in the memory as operation time information, and this operation time information is transmitted to the power management apparatus 100. In addition to the reservation, when a time zone in which the operation of the corresponding device Ma is permitted (a time zone in which power consumption is permitted) is set, information indicating the time zone is also stored in the memory. It transmits to the power management apparatus 100. In this case, identification information that distinguishes between a time zone that is always operated like a reserved time zone and a time zone in which the operation is permitted is given.

  For example, in the case where the corresponding device Ma is an electric device that operates for a predetermined time using midnight power, a time zone in which the operation is allowed and a time (length of time) for which the operation is allowed May be set. In this case, the corresponding device Ma stores information indicating the allowable operation time zone (start allowable time and allowable end time) and the operation time in the memory, and transmits these information to the power management apparatus 100. For example, assuming that the application of the late-night electricity rate is 8 hours from 11:00 pm to 7:00 am on the following day, devices that do not require 8 hours of operation time per day (for example, power storage devices, electric water heaters, etc. ).

  Further, in the case of the corresponding device Ma that operates only for a predetermined time per day without limiting the time zone, information indicating the operation time of the day is stored in the memory, and the information is transmitted to the power management apparatus 100. . Further, in the case of the corresponding device Ma that operates only by the user's operation, information regarding the operation time is not stored in the memory, and only information representing power consumption is transmitted to the power management apparatus 100.

  When starting the operation, the corresponding device Ma transmits power consumption schedule information including such power consumption information and operation time information to the power management apparatus 100, and operates according to the power supply schedule transmitted from the power management apparatus 100. If is permitted, start its operation.

  The non-compliant device Mb is connected to the power outlet 30 via the communication adapter 80 as shown in FIGS. The communication adapter 80 has a pair of power receiving-side male terminals 81 that can be inserted into and removed from the power supply port 31 of the power outlet 30, and a power receiving-side male terminal 81 that is electrically connected to the connection plug CP of the non-compatible device Mb. A pair of power supply side female terminals 82, a communication terminal 90, a current sensor 83, a connection detection switch 84, and a current limiter 85 are provided.

  The communication adapter 80 is attached to the power outlet 30 by inserting the power receiving side male terminal 81 into the power supply port 31 of the power outlet 30. In this state, by inserting the connection plug CP of the non-compliant device into the power feeding side female terminal 82, the power outlet 30 and the non-compliant device Mb are electrically connected. The connection detection switch 84 is a switch that mechanically turns on the contact when the connection plug CP of the non-compatible device Mb is inserted in the power supply side female terminal 82, and outputs a contact signal to the communication terminal 90. The current sensor 83 is provided in the power supply line 86 between the power-receiving-side male terminal 81 and the power-feeding-side female terminal 82, and detects a current flowing through the power supply line 86, that is, a current flowing through the non-compatible device Mb. A detection signal corresponding to the current value is output to communication terminal 90. The current limiter 85 is a switch that opens and closes the power supply line 86 by a drive signal output from the communication terminal 90, and is normally maintained in an on state (closed state).

  The communication terminal 90 includes a microcomputer 91 that performs various arithmetic processes, a PLC communication unit 92 that performs PLC communication with the power management apparatus 100 via the feeder line 21, a storage unit 93 that includes a nonvolatile memory, and an input / output An interface 94 is provided. The communication adapter 80 includes a dry battery (not shown), and supplies power to the communication terminal 90 from the dry battery. The microcomputer 91 inputs a contact signal detected by the connection detection switch 84 via the input / output interface 94, and confirms that the connection plug CP of the non-compatible device Mb is connected to the communication adapter 80 based on this contact signal. Each time it is detected, information representing the connection date and time is created as connection replacement history information and stored in the storage unit 93.

  The connection replacement history information is updated to the latest each time the connection plug CP of the non-compliant device Mb is connected to the communication adapter 80 (each time the non-compliant device Mb connection plug CP is inserted into the power supply side female terminal 82). Is done. Since the communication adapter 80 is used by being attached to the power outlet 30, this connection change history information represents connection change history information indicating a connection change history of the non-compatible device Mb to the power outlet 30. . Therefore, the connection replacement history information represents the date and time when the non-compatible device Mb is connected to the power outlet 30 at the very end.

  Further, the microcomputer 91 reads the current value detected by the current sensor 83 via the input / output interface 94 during the operation of the incompatible device Mb, and is in operation every time the operation of the incompatible device Mb stops. Power consumption is detected, and information indicating the power consumption and information indicating the power supply end date and time are stored in the storage unit 93 as power supply history information. This power supply history information is updated to the latest information. In addition, the microcomputer 91 stores the maximum value of past power consumption in the storage unit 93 as power supply history information. Therefore, when the power consumption obtained by the current detection is larger than the maximum power consumption value stored in the storage unit 93, the power consumption during the operation of the current non-compatible device Mb is stored and updated as the maximum value. The

  Thus, the microcomputer 91 estimates the power consumption of the non-compatible device Mb connected to the power outlet 30 (communication adapter 80) using the connection change history information and the power supply history information before the operation starts. Hereinafter, the power consumption estimation process performed by the microcomputer 91 of the communication terminal 90 will be described.

  FIG. 5 shows a power consumption estimation routine executed by the microcomputer 91. The microcomputer 91 starts a power consumption estimation routine when the power of the non-compatible device Mb connected to the communication adapter 80 is turned on. The power-on of the non-compatible device Mb can be determined by detecting that the current has flowed by the current sensor 83.

  As will be described later, when the current sensor 83 detects the flow of current due to the start of the operation of the non-compliant device Mb, the microcomputer 91 temporarily turns off the current limiter 85 to cut off the power supply and power consumption. The schedule information is transmitted to the power management apparatus 100. And when permission of power consumption is given by the power supply schedule transmitted from the power management apparatus 100, the process which starts the electric power supply to the non corresponding | compatible apparatus Mb by turning on the current limiter 85 is performed. This power consumption estimation routine is performed in parallel with the power supply control by the current limiter 85.

  First, in step S <b> 10, the microcomputer 91 reads connection replacement history information and power supply history information from the storage unit 93. Subsequently, in step S11, based on the connection replacement history information and the power supply history information, it is determined whether or not the non-compatible device Mb has been replaced with the power outlet 30 (communication adapter 80). That is, it is determined whether or not the non-compliant device Mb has been replaced with the power outlet 30 after the previous operation of the non-compliant device Mb.

  For example, the microcomputer 91 reads the date and time when the non-compliant device Mb was last activated from the power supply history information, and reads the date and time when the non-compliant device was last connected from the connection replacement history information. If the date and time when the non-compliant device Mb was last activated is before the date and time when the non-compliant device Mb was last connected, the non-compliant device Mb is replaced with the power outlet 30 (communication adapter 80). If the date and time when the non-compliant device Mb was last activated is later than the date and time when the non-compliant device Mb was last connected, the non-compliant device Mb is replaced with the power outlet 30 (communication adapter 80). Judge that it is not.

  If the microcomputer 91 determines “Yes” in step S11, that is, if the connection of the non-compatible device Mb has been changed, the maximum value of the past power consumption included in the power supply history information in step S12. And set the value to the planned power consumption value. On the other hand, if “No” in step S11, that is, if it is determined that the connection of the non-compatible device Mb has not been performed, in step S13, the previous power consumption (updated) included in the power supply history information is updated. Set the latest power consumption) to the planned power consumption value.

  Subsequently, in step S <b> 14, the microcomputer 91 transmits power consumption schedule information indicating the power consumption schedule value to the power management apparatus 100. Note that the microcomputer 91 stores a device ID that identifies the communication adapter 80 in the storage unit 93, and always transmits this device ID together when transmitting information to the power management apparatus 100.

  When transmitting the power consumption schedule information in step S14, the microcomputer 91 monitors the power consumption of the non-compatible device Mb based on the current value detected by the current sensor 83 in the subsequent step S15. This power consumption monitoring is continued until the operation of the non-compliant device Mb is stopped. The processing from step S15 is started when the power supply schedule transmitted from the power management apparatus 100 as a response to the transmitted power consumption schedule information indicates permission for power consumption. Therefore, when the power supply schedule indicates prohibition of power consumption, this routine is finished at the stage where the power consumption schedule information is transmitted in step S14.

  When starting monitoring the power consumption, the microcomputer 91 determines whether or not the non-compliant device Mb is stopped based on the current value detected by the current sensor 83 in the subsequent step S16. The power consumption is monitored until the operation of the non-compliant device Mb is stopped, and when the non-compliant device Mb is detected to be deactivated, the operation of the non-compliant device Mb is completed for the power management apparatus 100 in step S17. The operation end information indicating that is transmitted.

  Subsequently, in step S18, the microcomputer 91 updates the power consumption monitored this time as the power consumption immediately before. Therefore, the previous power consumption stored in the storage unit 93 at the end of the previous operation of the non-compliant device Mb is updated to the power consumption monitored this time. When the power consumption varies greatly during monitoring, the maximum value or the average value may be adopted as the power consumption. In addition, at the time of this storage update, information indicating the operation stop date and time of the non-compatible device Mb is also stored.

  Subsequently, in step S19, the microcomputer 91 determines whether or not the power consumption monitored this time is larger than the maximum value of the past power consumption. If the power consumption monitored this time is larger than the maximum value of past power consumption, the power consumption monitored this time is set to the maximum value of past power consumption and stored in the storage unit 93 in step S20. Update and end this routine. On the other hand, when the power consumption monitored this time is equal to or less than the maximum value of the past power consumption, the process of step S20 is skipped and this routine is terminated.

  According to this power consumption estimation routine, when the non-compliant device Mb starts operating, the power consumption of the non-compliant device Mb is estimated, and the estimated power consumption is transmitted to the power management apparatus 100. In estimating the power consumption, if the non-compliant device Mb is not replaced at the power outlet 30 after the previous operation of the non-compliant device Mb, the power consumption detected during the last operation is scheduled to be consumed. Set to value. Therefore, power consumption can be estimated with high accuracy. Further, if the non-compliant device Mb is replaced in the power outlet 30 after the previous operation of the non-compliant device Mb, the maximum power consumption of the non-compliant device Mb connected to the power outlet 30 in the past is set. Set to the expected power consumption value. Therefore, power consumption can be estimated on the safe side (the side that works to prevent power failure).

  Next, power management processing performed by the power management apparatus 100 and each electrical device M will be described. FIG. 6 represents a power management routine. In the drawing, the left side represents processing performed by the power management apparatus 100, and the right side represents processing performed by each electrical device M. In the case of the non-compliant device Mb, the processing performed by the communication adapter 80 is performed.

  Each electric device M is activated when the power is turned on, and starts processing from step S21. In step S21, the electric device M transmits the power consumption schedule information to the power management apparatus 100 together with the device ID. In this case, each electric device M transmits power consumption information and operation time information as power consumption schedule information. When the operation time zone is not set like the non-compatible device Mb, the power consumption schedule information is only the power consumption information. For the non-compliant device Mb, information indicating the power consumption scheduled value estimated by the communication adapter 80 by the power consumption estimation routine is transmitted to the power management apparatus 100 together with the device ID (ID for identifying the communication adapter 80).

  At the stage of transmitting the power consumption schedule information, the electric device M is not operating. As for the corresponding device Ma, the operation start can be controlled by its own controller, but the non-compatible device Mb cannot be controlled. Therefore, for the non-compliant device Mb, as will be described later, the communication adapter 80 temporarily stops the power supply to the non-compliant device Mb.

  When the power is turned on, the microcomputer 210 of the power management apparatus 100 starts a power management routine and starts processing from step S31. In step S31, the microcomputer 210 reads information representing the contract capacity. The contract capacity is input in advance by the user using the operation unit 270 and stored in the storage unit 230 at the time of initial setting. After storing the contracted capacity, the microcomputer 210 repeats the processing from step S32 to step S38 until the power is turned off.

  In step S32, the microcomputer 210 of the power management apparatus 100 stands by until the power consumption schedule information is transmitted from the electrical device M. When the power consumption schedule information is received, the microcomputer 210 generates a power supply schedule in step S33. The power supply schedule is randomly transmitted from the plurality of electric devices M. Accordingly, the microcomputer 210 generates a power supply schedule each time it receives power consumption schedule information from the electrical device M.

  The microcomputer 210 of the power management apparatus 100 calculates a total value of power consumption for each time zone based on the power consumption schedule information transmitted from each electric device M. And when a total value exceeds contract capacity, an operation time zone is adjusted. In this case, in the case of the electric device M in which the operation time zone is not set, the operation time zone is set indefinitely. That is, the scheduled operation start time is set as the current time and the scheduled operation end time is set as undetermined. In the case of the corresponding device Ma in which the allowable operation time zone (permitted start time and allowable end time) and the operation time (length of time for operation) are set, the total power consumption value in the allowable operation time zone is The operating time zone of the corresponding device Ma is set in the operating time zone that decreases. By adjusting the operating time zone of the corresponding device Ma that can adjust the operating time zone in this way, the total value of the power consumed by the electrical device M can be reduced at the same time. In addition, for the electric device M that has already started operation (the electric device M in the middle of supplying power), the power supply schedule is set so that the power supply is continued without adjusting the power supply. create.

  In addition, the microcomputer 210 of the power management apparatus 100 determines the power supply schedule of the electrical equipment M other than the charging apparatus 50 of the vehicle V, and then allocates the surplus power for the contract capacity to the supply power to the charging apparatus 50. In this case, the schedule regarding battery charging specifies an operation permission time zone, and the maximum power consumption (maximum current value) allowed for battery charging is set for each time zone.

  Subsequently, in step S34, the microcomputer 210 determines whether or not a power supply schedule could be generated within the contracted capacity. If the schedule could not be generated, in step S35, the unusable information is sent to the user. To notify. In this case, the voice announcement unit 280 and the display unit 260 are operated, and a notification that the electric device M cannot be operated is notified by a voice announcement and a screen display. For example, information (such as a device name or device number) that identifies an unusable electrical device M and information indicating a time zone during which the electrical device M cannot be used are reported.

  Subsequently, in step S36, the microcomputer 210 generates a power supply schedule again based on the power consumption schedule of the electric device M excluding the electric device M that has been notified that it cannot be used, and uses the generated power supply schedule for each electric power supply schedule. Transmit to device M. On the other hand, if the power supply schedule can be generated within the contracted capacity in step S34, the generated power supply schedule is transmitted to each electrical device M in step S37.

  Subsequently, in step S38, the microcomputer 210 supplies power to each electrical device M according to the power supply schedule. In this case, when the microcomputer 210 detects power consumption that is not set in the power supply schedule, for example, the current sensor 121 detects that a current has flowed through the power supply line 21 of the electrical device M that is not permitted to supply power. In such a case, power supply is stopped by controlling the current limiter 111 of the feeder line 21 to the off state.

  Further, the charging ECU 70 of the vehicle V charges the battery 40 in a range that does not exceed the maximum power consumption (maximum current value) specified in the power supply schedule. The charging ECU 70 reads the charging current detected by the current sensor 55 during the battery charging permission period (operation time period), and sets the target current value within a range in which the detected current value does not exceed the maximum current value specified in the power supply schedule. The charger 52 is driven so that current flows, and the battery 40 is charged.

  Subsequently, the microcomputer 210 returns the process to step S32 and waits until the power consumption schedule information is transmitted from the electric device M, and whenever it receives the power consumption schedule information, the power supply schedule is as described above. And the power supply to each electric device M is controlled according to the power supply schedule.

  On the other hand, after transmitting the power consumption schedule information, the electric device M waits until the power supply schedule is transmitted from the power management apparatus 100 in step S22. When the power supply schedule is received, the electric device M receives the power supply schedule in step S23. The power supply schedule is stored, and thereafter, the operation is performed according to the stored power supply schedule.

  The power supply schedule includes information indicating a device ID that permits operation and an operation time zone associated with the device ID. Further, the power supply schedule of the charging device 50 is set after determining the power supply schedule of the electric equipment M excluding the charging device 50. As for the power supply to the charging device 50, the surplus power for the contract capacity is allocated. Therefore, the power supply schedule of the charging device 50 represents the maximum allowable current for each operating time zone of the charging device 50. This maximum allowable current is limited to a value smaller than the cutoff current of the branch breaker of the distribution board 20.

  Each electric device M refers to an operation time zone associated with its own device ID, and starts operating immediately when the operation time zone is set to unlimited. In addition, the electric device M whose operation time zone is specified by the power supply schedule operates in the specified operation time zone.

  In step S24, the electric device M determines whether or not the operation is completed. When the operation is completed, the electric device M determines whether or not the next power consumption schedule is set in step S25. If the next power consumption schedule is set, the electrical device M returns the processing to step S21, and transmits information representing the next power consumption schedule together with the device ID to the power management apparatus. Thereby, the microcomputer 210 of the power management apparatus 100 generates a power supply schedule based on the power consumption schedule information in step S33 as described above.

  When the next power consumption schedule is not set (S25: No), the electric device M transmits information indicating the end of operation together with the device ID to the power management apparatus 100 and ends this routine in step S26. . Thereby, the microcomputer 210 of the power management apparatus 100 generates a power supply schedule again. That is, the power consumption of the electric device M that has been included in the power supply schedule so far is removed from the power supply schedule, and a new power supply schedule is generated.

  In this routine, when the electrical device M is the non-compliant device Mb, the microcomputer 91 of the communication adapter 80 detects the operation end of the non-compliant device Mb based on the signal from the current sensor 83, and displays information indicating the operation end. It transmits to the power management apparatus 100 together with the device ID.

  In the case of the non-compatible device Mb, the power management cannot be performed because the operation starts as it is when the power switch is turned on. Therefore, when the non-compliant device Mb is started, the communication adapter 80 temporarily cuts off the power supply, and when the operation is permitted by the power supply schedule transmitted from the power management device, the communication adapter 80 supplies power to the non-compliant device Mb. It has a function to start supply. Hereinafter, the power supply control process to the non-compliant device Mb performed by the communication adapter 80 will be described. FIG. 7 shows a power supply control routine executed by the microcomputer 91 of the communication adapter 80. The power supply control routine starts when the communication adapter 80 is turned on and is repeatedly executed.

  When this routine is started, the microcomputer 91 reads a current value detected by the current sensor 83 in step S1, and determines whether or not a current is flowing in step S2. The microcomputer 91 repeats such processing until a current flows. When the power switch of the non-compliant device Mb is turned on, a current flows through the power supply line 86 of the communication adapter 80, and the current sensor 83 detects the start of the non-compliant device Mb. The microcomputer 91 turns off the current limiter 85 and interrupts the current at the moment when the current sensor 83 detects that the current has flowed (step S3). The operation of shutting off the main breaker of the distribution board 20 due to overload is not performed instantaneously and requires a certain amount of time. Therefore, the main breaker is not cut off by the operation of the current limiter 85.

  Subsequently, in step S4, the microcomputer 91 transmits power consumption schedule information. The process of step S4 is a process of transmitting power consumption schedule information in step S12 or step S13 of the power consumption estimation routine (FIG. 5) described above, or of power consumption schedule information in step S21 of the power management routine (FIG. 6). This is the same as the transmission process. Here, in order to indicate the transmission timing of the power consumption schedule information, it is intentionally duplicated.

  Subsequently, in step S5, the microcomputer 91 waits until the power supply schedule is transmitted from the power management apparatus 100. When the microcomputer 91 receives the power supply schedule, in step S6, according to the operation time zone specified in the power supply schedule. The current limiter 85 is turned on. When the power management apparatus 100 can immediately start power supply to the electrical device M, the power management apparatus 100 sets the operation time zone to unlimited. In this case, when receiving the power supply schedule, the microcomputer 91 immediately switches the current limiter 85 to the on state. When the operation start time is designated, the current limiter 85 is switched to the on state after waiting until that time.

  Subsequently, the microcomputer 91 reads the current value detected by the current sensor 83 in step S7, and waits until no current flows in step S8. When the operation of the non-compatible device Mb stops, the current value detected by the current sensor 83 becomes zero. Thereby, the microcomputer 91 determines that the operation of the non-compliant device Mb has been stopped, transmits information indicating the end of the operation to the power management apparatus 100 in step S9, and ends this routine.

  In the present embodiment, for the non-compliant device Mb, the power supply is limited by using the current interruption function of the communication adapter 80 (opening / closing of the current limiter 85). The power supply may be limited using a current interrupt function (opening / closing of the current limiter 111). In this case, at the moment when the power management device 100 detects that a current flows in the current sensor 121 (the current sensor 121 provided in the power management device 100) of the power supply line 21 to which the non-compliant device Mb is connected, Once the current limiter 111 is turned off. Then, a new power supply schedule that takes into account the power consumption schedule information of the non-compliant device Mb transmitted from the communication adapter 80 is generated, and if the operation can be permitted, the current limiter 111 is immediately turned on. If the operation cannot be permitted, the current limiter 111 is kept off. In addition, even when the current limiter 111 is maintained in the off state, the power management apparatus 100 subsequently generates a current limiter 111 when a larger power consumption margin than the power consumption schedule of the non-compliant device Mb is generated by the power supply schedule. Switch to the on state.

  In order to do this, the microcomputer 210 of the power management apparatus 100 needs to grasp the branch power feeding circuit to which the non-compliant device Mb is connected. Therefore, the microcomputer 91 of the communication adapter 80 transmits ID information for identifying the communication adapter 80 to the power management apparatus 100 when the power receiving-side male terminal 81 is connected to the power outlet 30. Thereby, the microcomputer 210 of the power management apparatus 100 can grasp the branch power feeding circuit to which the communication adapter 80 is connected. Therefore, the microcomputer 210 of the power management apparatus 100 can determine whether the electric device M connected to each branch power supply circuit is the corresponding device Ma or the non-compatible device Mb, and according to the determination. Current limiting processing can be performed.

  The power management system of the present embodiment described above has the following effects.

  1. In order to generate a power supply schedule based on the power consumption schedule information transmitted from each electric device M and supply electric power to the electric device M according to the generated power supply schedule, suddenly, the main breaker of the distribution board 20 Does not cause a power outage.

  2. When using a non-compliant device Mb that does not have a function of transmitting information related to power consumption, the non-compliant device Mb is connected to the power outlet 30 via the communication adapter 80, so that the power management device is connected from the communication adapter 80 to the power outlet 30. Power consumption schedule information can be transmitted to 100. Therefore, even if an existing electric device (non-compatible device Mb) is used in the power management system, power management in the home can be appropriately performed.

  3. Since the communication adapter 80 transmits power consumption schedule information indicating estimated power consumption at the start of operation of the connected non-compatible device Mb, the power management apparatus 100 sets a power supply schedule based on the estimated power consumption. Can be generated.

  4). In estimating the power consumption of the non-compliant device Mb, if the non-compliant device Mb is not replaced at the power outlet 30 after the previous operation of the non-compliant device Mb, the power consumption detected during the previous operation Is set to the power consumption scheduled value, so that the power consumption can be estimated with high accuracy. In addition, if the non-compliant device Mb is replaced at the power outlet 30 after the previous operation of the non-compliant device Mb, the maximum power consumption of the non-compliant device Mb connected to the power outlet 30 in the past is set as the power. Since it is set to the planned consumption value, the power consumption can be estimated on the safe side (the side that works for power failure prevention).

  5). As shown in FIG. 8, the power supply schedule for charging the battery 40 is set so that the power supply schedule for the electrical device M other than the charging device 50 is determined, and then the surplus power for the contract capacity is allocated to the battery charge. In addition, the operation of the other electric device M is not limited by the battery charging, and it is easy to use. In addition, the power consumption does not exceed the contract capacity due to the use of the high-load electric device M. As a result, since the surplus power can be fully used for battery charging, it can be efficiently charged in terms of time.

  6). As a result, even when an electric device M (for example, the charging device 50 of the vehicle V) with large power consumption is connected, a power failure due to exceeding the contract capacity can be prevented. In addition, contract capacity change (capacity increase) for avoiding a power failure can be avoided, and electric power can be used at low cost.

  It should be noted that such management of power supply need not be performed for all the electrical devices M in the home, and may be set only for the electrical device M for which the user wants to manage power consumption. For example, lighting devices and electric devices that are always used may be excluded from power management targets. In this case, the user may use the operation unit 270 to set in advance the branch circuit number of the electrical device M that is to be excluded from the management target and its power consumption (referred to as fixed power consumption). The microcomputer 210 of the power management apparatus 100 stores such set information in the storage unit 230, and manages the power supply to the electrical device M to be managed within the power range excluding the fixed power consumption from the contracted capacity. I do.

  Moreover, since time setting is required in performing such power supply management, each electric device M (corresponding device Ma and communication adapter 80) needs to grasp the time common to the power management apparatus 100. Therefore, for example, the microcomputer 210 of the power management apparatus 100 periodically transmits time information to each electrical device M, and each electrical device M may correct the time using the transmitted time information. .

  Moreover, in this embodiment, by transmitting an electric power supply schedule to the electric device M, an operation permission command is given to the electric device M side so that the power consumption in the home does not exceed the upper limit value. However, the power management apparatus 100 may control the power supply to each electric device M by opening / closing the current limiting unit 110 according to the power supply schedule. That is, the current limiter 111 provided in the power supply line 21 of the electric device M that is permitted to operate in the power supply schedule is turned on, and the electric device M that is not permitted to operate (electric device not in the power supply schedule). The configuration may be such that the current limiter 111 provided in the feeder line 21 is turned off.

<First Modification>
Next, a first modification will be described. In the above-described embodiment, when the incompatible device Mb is directly connected to the power outlet 30 without using the communication adapter 80, power consumption is started without transmitting the power consumption schedule information to the power management apparatus 100. . Therefore, in the power management apparatus 100, it becomes impossible to generate a power supply schedule appropriately, and there is a possibility that the total power consumption exceeds the contracted capacity and causes a power failure.

  Therefore, in the first modified example, when the power consumption of the electrical device M not in the power supply schedule starts, the power supply to the electrical device M is gradually increased from the state once limited to a predetermined level. Is added to the power management apparatus 100 of the embodiment. Since other configurations are the same as those in the embodiment, a functional configuration to be added will be described below.

  FIG. 9 illustrates a non-compliant device power supply control routine executed by the microcomputer 210 of the power management apparatus 100. The non-compliant device power supply control routine is repeatedly executed in parallel with the above-described power management routine in the power-on state of the power management apparatus 100. When the non-compliant device power supply control routine is activated, the microcomputer 210 reads the current for each power supply line 21 detected by the current sensor 121 in step S111. Subsequently, in step S112, it is determined based on the detected current whether power consumption not included in the power supply schedule has been started. When the current according to the power supply schedule is detected (S112: No), such processing is repeated.

  When the non-compliant device Mb is directly connected to the power outlet 30 and its operation is started, a current flows through the power supply line 21 to which the non-compliant device Mb is connected. Thereby, the microcomputer 210 detects power consumption not included in the power supply schedule (S112: Yes). In this case, in step S113, the microcomputer 210 outputs a cut-off signal to the current limiter 111 of the power supply line 21 through which a current not included in the power supply schedule flows, thereby turning the current limiter 111 off (opened). Thereby, the power supply to the non-compatible device Mb is stopped instantaneously.

  Subsequently, in step S114, the microcomputer 210 controls the current limiter 111 and starts supplying power so that the energization amount to the non-compatible device Mb gradually increases. The current limiter 111 in this modification has a function of changing the energization amount in addition to the current interruption function. In step S114, the microcomputer 210 gradually increases the limit value of the current flowing through the current limiter 111. For example, the current limiter 111 includes a power switching element, and varies the energization amount by PWM control. The microcomputer 210 outputs a PWM control signal set so that the duty ratio gradually increases from a predetermined value (for example, zero) to the drive circuit 240, and the drive circuit 240 sends a gate signal to the power switching element according to the PWM control signal. Is output. As a result, the current limiter 111 gradually increases the current flowing through the feeder line 21. Accordingly, power is gradually supplied to the non-compatible device Mb.

  When starting to gradually increase the power supply in step S114, the microcomputer 210 determines whether or not power shortage is expected in the subsequent step S115. That is, it is determined whether or not the total of the currents detected by each current sensor 121 may exceed the contracted capacity. At the start of the gradual increase in power supply to the non-compatible device Mb, “No” is determined because the supply power is small. In step S116, the microcomputer 210 determines whether or not the gradual increase in power supply has been completed. If the gradual increase in power supply is in progress, the process returns to step S115. For example, while the duty ratio by PWM control does not reach the maximum value (100%), it is determined that the power supply is gradually increasing.

  The microcomputer 210 repeats the determinations in steps S115 and S116, and when the gradual increase in power supply is completed before the power shortage is determined (when the power supply restriction is completed) (S116: Yes), step S117 is performed. In, the power supply schedule is updated. That is, the power consumption of the non-compatible device Mb for which power supply is newly started is incorporated into the power supply schedule. In this case, the operation time is set indefinitely. After that, when the current sensor 121 detects that the power supply to the non-compliant device Mb is stopped, the power consumption schedule is excluded from the power supply schedule.

  On the other hand, if a power shortage is detected during the gradual increase in power supply (S115: Yes), the microcomputer 210 outputs a cut-off signal to the current limiter 111 and turns off the current limiter 111 in step S118. In the subsequent step S119, the voice announcement unit 280 notifies that the electric device M cannot be operated due to insufficient power supply.

  When the microcomputer 210 performs the process of step S117 or S119, the non-compliant device power supply control routine is temporarily terminated. Then, the process from step S111 is resumed.

  As described above, in the first modified example, when the non-compliant device Mb that cannot transmit the information on the power consumption is directly connected to the power outlet 30, the power supply is temporarily limited to a predetermined level. Gradually increase the power supplied. Then, while the supply power is increasing, it is determined whether the total power consumption in the home may exceed the contract power. If the total power consumption does not exceed the contract power, the power supply schedule is updated. As a result, the non-compatible device Mb can be used. On the other hand, if there is a possibility that the total power consumption exceeds the contracted power, the power supply to the non-compliant device Mb is stopped and the user is notified accordingly.

  As a result, according to the first modification, it is possible to appropriately perform power management even if the non-compliant device Mb that cannot transmit information about power consumption is directly connected to the power outlet 30 and used. For this reason, existing electric equipment can be utilized to the maximum extent. In addition, the user does not need to determine whether or not the electrical device is a compatible device, and does not need to determine the necessity of mounting the communication adapter 80.

  In this modified example, when the power shortage is detected during the gradual increase of the power supply, the power supply to the non-compliant device Mb is stopped, but the power supply is not stopped, May be configured to notify the user of power shortage while maintaining the above. In this case, the user may resume the gradual increase in power supply when the shortage of power is resolved by temporarily suspending other electrical devices or the like.

  In this modification, when power consumption that is not in the power supply schedule is started, the power supply to the power supply line 21 is temporarily cut off, but it is narrowed down to a predetermined level without being cut off completely. From (limit), the gradual increase in power supply may be started.

When this modification is employed, the communication adapter 80 is not necessarily provided in the power management system of the embodiment. Further, it is not necessary to estimate the power consumption of the electric device M connected to the power outlet 30.
<Second Modification>
Next, a second modification will be described. In the embodiment described above, after the electric device M starts operating, the power supply schedule is generated so as to continue the operation of the electric device M. For this reason, in the situation where the battery of the vehicle V is being charged and the power consumption is near the contracted capacity, the power supply is performed even if the new electric device M is immediately activated. It cannot be incorporated into the schedule, and power supply is prohibited. Therefore, the user cannot immediately use a new electric device M (for example, a hair dryer). The second modification improves these points by improving usability. In the following, parts different from the embodiment will be described.

  Also in the second modified example, the power management process is performed by the cooperation of the power management apparatus 100 and the electric device M as in the embodiment. Here, since the control of the charging device 50 of the vehicle V, which is one of the electric devices M, is particularly characteristic, the processing of the power management device 100 and the charging ECU 70 will be described. FIG. 10 shows a part of a power management routine executed by the microcomputer 210 of the power management apparatus 100 as the second modified example, and FIG. 11 shows a power management routine executed by the microcomputer 71 of the charging ECU 70 as the second modified example. Represents.

  The power management routine executed by the microcomputer 210 of the power management apparatus 100 as the second modified example is the process shown in FIG. 10 (step S40) between step S33 and step S34 of the power management routine (FIG. 6) of the embodiment. To S46). Therefore, the added process will be described here.

  When the microcomputer 210 generates the power supply schedule in step S33, the microcomputer 210 determines whether or not the battery charging is temporarily suspended in the subsequent step S40. As can be seen from the processing described later, during the battery charging of the vehicle V, the battery charging is temporarily suspended in a situation where the power to be consumed exceeds the contracted capacity. In step S40, it is determined whether or not the battery charging is temporarily suspended.

  If the microcomputer 210 determines that the battery charging is not paused (S40: No), the microcomputer 210 determines whether or not the battery charging needs to be temporarily stopped based on the power supply schedule. If the battery is not being charged, it is determined as “No” and the process proceeds to step S34. Even if the battery is being charged, “No” even when the contract capacity is sufficient with respect to the power supply schedule, that is, when the contract capacity exceeds the planned power consumption. And the process proceeds to step S34.

  On the other hand, in a situation where the battery is being charged and a power consumption schedule is transmitted from a new electrical device M and the planned power consumption in the power supply schedule exceeds the contracted capacity, the electrical device M is operated as it is. I can't make it happen. In such a situation, the new electric device M can be activated by temporarily stopping the battery charging. Therefore, in such a situation, the microcomputer 210 determines “Yes” in step S41, and advances the process to step S42.

  In step S42, the microcomputer 210 activates the voice announcement unit 280 to notify the user that power supply is being prepared. Thereby, the user who intends to use the new electric device M is satisfied even if the electric device M does not operate immediately, and waits until power is supplied.

  Subsequently, in step S43, the microcomputer 210 transmits a request for temporary suspension of battery charging to the charging ECU 70, and waits for a response from the charging ECU 70 in subsequent step S44. When the charging ECU 70 receives a request for temporary suspension of battery charging, the charging ECU 70 transmits a response signal indicating whether the temporary suspension is possible or not possible to the power management apparatus 100. When the microcomputer 210 receives the response signal from the charging ECU 70 (S44: Yes), the process proceeds to step S34.

  In this case, if the response signal from the charging ECU 70 indicates that the battery charging can be temporarily stopped, the power supply schedule can be generated within the contracted capacity. Accordingly, power supply to a new electric device M is started according to the updated power supply schedule. Further, if the response signal from the charging ECU 70 indicates that the battery charging cannot be temporarily stopped, the power supply schedule cannot be generated within the contracted capacity, so the processing from step S35 is performed.

  After battery charging is suspended, the determination in step S40 is “Yes”. The microcomputer 210 generates a power supply schedule each time a power consumption schedule (including operation end information) is received from the electric device M (S32, S33), and determines whether or not battery charging can be resumed in step S45. . That is, it is determined whether the scheduled power consumption in the power supply schedule does not exceed the contracted capacity even when the battery charging is resumed. The microcomputer 210 determines “No” in a situation where the contract capacity is not sufficient with respect to the power supply schedule, and advances the process to step S34.

  When the microcomputer 210 repeats such processing and determines in step S45 that the battery charging can be resumed, in the following step S46, the resumable signal indicating that the battery charging can be resumed to the charging ECU 70. In step S44, a response from the charging ECU 70 is waited for. When receiving the resumable signal, the charging ECU 70 transmits a response signal indicating whether or not to recharge the battery to the power management apparatus 100.

  When the microcomputer 210 receives the response signal from the charging ECU 70, the microcomputer 210 proceeds to step S34 and repeats the above-described processing. Accordingly, the power supply schedule is updated and transmitted to each electric device M, and battery charging is resumed.

  Next, processing on the charging ECU 70 side that responds to a command from the power management apparatus 100 will be described. The charge ECU 70 transmits power consumption schedule information (charge schedule information) to the power management apparatus 100 in advance. Then, the power supply schedule transmitted from the power management apparatus 100 is received, and battery charging is started at the operation start time according to the power supply schedule. FIG. 11 shows a power management routine executed by the microcomputer 71 of the charging ECU 70 after the battery charging is started.

  In step S51, the microcomputer 71 controls the operation of the charger 52 to control the charging of the battery 40. Subsequently, in step S52, it is determined whether or not to end the battery charging. For example, “Yes” is determined when it is determined that the battery 40 is fully charged based on the SOC, or when the end time is reached according to the power supply schedule. While the battery charging is not finished (S52: No), the microcomputer 71 determines whether or not a battery charging temporary suspension request has been transmitted from the power management apparatus 100 in step S53. While the battery charging temporary suspension request is not received, the charging control is continued.

  If the microcomputer 71 receives a request for temporary suspension of battery charging during battery charging (S53: Yes), the microcomputer 71 advances the process to step S55. On the other hand, when the battery charging is finished (S52: Yes), the process proceeds to step S54, information indicating the end of the operation is transmitted to the power management apparatus 100 together with the device ID, and this routine is finished.

  When the microcomputer 71 receives a request for temporary suspension of battery charging, in step S55, the microcomputer 71 determines whether or not it is possible to pause battery charging. If the suspension is possible (S55: Yes), step S55 is performed. In S56, a response signal indicating that temporary suspension is possible is transmitted to the power management apparatus 100, and in step S57, the operation of the charger 52 is temporarily stopped.

  On the other hand, if it is impossible to pause battery charging (S55: No), in step S58, a response signal indicating that pause is not possible is transmitted to the power management apparatus 100, and the processing is performed. Is returned to step S51. Therefore, the charging control of the battery 40 is continued as it is.

  In the case where the battery charging is temporarily suspended, the microcomputer 71 waits until a resumable signal indicating that the battery charging can be resumed is transmitted from the power management apparatus 100 in step S59. When the microcomputer 71 receives the resumable signal transmitted from the power management apparatus 100 (S59: Yes), in step S60, the microcomputer 71 determines whether or not it is necessary to restart the battery charging. If it is not necessary to restart the battery charging, the microcomputer 71 advances the process to step S54. If necessary, in step S61, the microcomputer 71 sends a restart response signal indicating that the battery charging is restarted to the power management apparatus 100. Send.

  When the microcomputer 71 transmits the restart response signal, the microcomputer 71 waits until the power supply schedule is transmitted from the power management apparatus 100 in the subsequent step S62. When the microcomputer 71 receives the power supply schedule, the battery from the step S51 follows the power supply schedule. 40 charge control is started.

  According to the power supply system of the second modified example described above, the power management apparatus 100 temporarily charges the battery to the charging ECU 70 even when the power consumption is near the contracted capacity. Therefore, the operation of the new electric device M can be started. Therefore, the electric device M can be used effectively within the contracted capacity range. In addition, after temporarily suspending the battery charging, the power management device 100 does not allow the battery charging until the scheduled power consumption in the power supply schedule does not exceed the contracted capacity even if the battery charging is resumed. A power failure can be reliably prevented. In addition, when the scheduled power consumption is reduced and a margin for the contracted capacity is generated, the resumption of the battery charging is permitted, so that the battery charging can be automatically resumed at an appropriate timing.

<Third Modification>
Next, a third modification will be described. In the second modification described above, when the scheduled power consumption exceeds the contracted capacity, the battery charging is temporarily suspended, but the planned power consumption does not fall below the contracted capacity only by the suspension of the battery charging. Is also possible. In such a case, the new electric device M cannot be used. Therefore, in the third modification, supply of household power from the battery 40 is assisted. In the third modified example, the power management apparatus 100 includes a power controller (not shown) that receives power supplied from the vehicle V and supplies the received power to each power supply line 21. In addition, in the vehicle V, a power conversion device (not shown) that converts DC power output from the battery 40 into household AC power is provided in parallel with the charger 52, and power conversion is performed with the charger 52 stopped. By operating the device, power is supplied from the power conversion device to the power controller via the power outlet 30 and the feeder line 21. If the charger 52 is bidirectional, the battery power may be supplied to the power controller using the charger 52 as a DC / AC converter.

  FIG. 12 shows a part of a power management routine executed by the microcomputer 210 of the power management apparatus 100 in the third modification. This power management routine executes steps S401, S411, and S431 instead of steps S40, S41, and S43 of the power management routine (FIG. 10) of the second modification, and the second modification is used for other processes. This is the same as the power management routine. Hereinafter, the same processes as those of the second modification example are denoted by the same step numbers as those of the second modification example, and the description thereof is omitted.

  When the microcomputer 210 generates a power supply schedule in step S33, in the subsequent step S401, the microcomputer 210 determines whether or not power is being supplied from the battery 40 to the home electrical device M (hereinafter referred to as battery power supply). To do. If the microcomputer 210 determines that the battery power supply is not being performed (S40: No), in the subsequent step S411, based on the power supply schedule, is it necessary to supply power from the battery 40 to the electrical device M in the home? Judge whether or not. If the contract capacity is sufficient with respect to the power supply schedule, that is, if the contract capacity exceeds the planned power consumption, “No” is determined, and the process proceeds to step S34.

  On the other hand, in a situation where the battery is being charged and a power consumption schedule is transmitted from a new electrical device M and the planned power consumption in the power supply schedule exceeds the contracted capacity, the electrical device M is operated as it is. I can't make it happen. In such a situation, if electric power is supplied from the battery 40 to the electric device M in the home, the electric device M to be newly operated can be operated even if it is a device with high power consumption. Therefore, in such a situation, the microcomputer 210 determines “Yes” in step S411 and advances the process to step S42.

  In step S42, the microcomputer 210 activates the voice announcement unit 280 to notify the user that power supply is being prepared. Thereby, the user who intends to use the new electric device M is satisfied even if the electric device M does not operate immediately, and waits until power is supplied.

  Subsequently, the microcomputer 210 transmits a request for battery power supply to the charging ECU 70 in step S431, and waits for a response from the charging ECU 70 in subsequent step S44. When the microcomputer 210 receives the response signal from the charging ECU 70 (S44: Yes), the process proceeds to step S34.

  In this case, if the response signal from the charging ECU 70 indicates that battery power can be supplied, the power supply schedule can be generated within the contracted capacity. Accordingly, power supply to a new electric device M is started according to the updated power supply schedule. If the response signal from the charging ECU 70 indicates that the battery power cannot be supplied, the power supply schedule cannot be generated within the contracted capacity, so the processing from step S35 is performed.

  After the battery power supply is started, the determination in step S401 is “Yes”. The microcomputer 210 generates a power supply schedule each time a power consumption schedule (including operation end information) is received from the electric device M (S32, S33), and determines whether or not battery charging can be resumed in step S45. . That is, it is determined whether the scheduled power consumption in the power supply schedule does not exceed the contracted capacity even when the battery charging is resumed. The microcomputer 210 determines “No” in a situation where the contract capacity is not sufficient with respect to the power supply schedule, and advances the process to step S34.

  When the microcomputer 210 repeats such processing and determines in step S45 that the battery charging can be resumed, in the following step S46, the resumable signal indicating that the battery charging can be resumed to the charging ECU 70. When the response signal is received from the charging ECU 70 (S44: Yes), the process proceeds to step S34, and the above-described process is repeated. Accordingly, the power supply schedule is updated and transmitted to each electric device M, and battery charging is resumed.

  Next, processing on the charging ECU 70 side that responds to a command from the power management apparatus 100 will be described. The charge ECU 70 transmits power consumption schedule information (charge schedule information) to the power management apparatus in advance. Then, the power supply schedule transmitted from the power management apparatus 100 is received, and battery charging is started at the operation start time according to the power supply schedule. FIG. 13 shows a power management routine executed by the microcomputer 210 of the charging ECU 70 in the second modification. This power management routine executes steps S531, S551, S561, S571, and S581 instead of steps S53, S55, S56, S57, and S58 of the power management routine (FIG. 11) of the second modified example. This process is the same as the power management routine of the second modification. Hereinafter, the same processes as those of the second modification example are denoted by the same step numbers as those of the second modification example, and the description thereof is omitted.

  The microcomputer 71 of the charging ECU 70 determines whether a battery power supply request has been transmitted from the power management apparatus 100 in step S531 during battery charging. The charging control is continued while the battery power supply request is not received. When the microcomputer 71 receives the battery power supply request (S531: Yes), in step S551, the microcomputer 71 determines whether the battery power can be supplied. If the battery power can be supplied (S551: Yes). In step S561, a response signal indicating that battery power can be supplied is transmitted to the power management apparatus 100. For example, the microcomputer 71 determines whether or not the SOC is equal to or higher than a predetermined value (for example, 50% of full charge) set in advance based on the SOC detected by the SOC detection unit 54, and the SOC is equal to or higher than the predetermined value. If the SOC is less than a predetermined value, it is determined that the battery power cannot be supplied. Subsequently, in step S571, the operation of the charger 52 is stopped, and instead, the power converter is operated to start supplying battery power.

  On the other hand, if battery power cannot be supplied (S551: No), in step S581, a response signal indicating that battery power cannot be supplied is transmitted to the power management apparatus 100. The process returns to step S51. Therefore, the charging control of the battery 40 is continued as it is.

  When starting the battery power supply, the microcomputer 71 waits until a resumable signal indicating that the battery charging can be resumed is transmitted from the power management apparatus 100 in step S59. When the microcomputer 71 receives the resumable signal transmitted from the power management apparatus 100 (S59: Yes), the microcomputer 71 determines whether or not it is necessary to restart the battery charging (S60), and if the battery charging does not need to be restarted. The process proceeds to step S54, and if necessary, in step S61, a restart response signal indicating that battery charging is restarted is transmitted to the power management apparatus 100.

  When the microcomputer 71 transmits the restart response signal, the microcomputer 71 waits until the power supply schedule is transmitted from the power management apparatus 100 in the subsequent step S62. When the microcomputer 71 receives the power supply schedule, the battery from the step S51 follows the power supply schedule. 40 charge control is started.

  According to the power supply system of the third modified example described above, power is supplied from the battery 40 to the home electrical device M even when the scheduled power consumption does not fall below the contracted capacity only by stopping the battery charging. As a result, it is possible to newly start the operation of the electric device M with large power consumption. Therefore, the electric device M can be used more effectively within the contracted capacity range. In addition, after the battery power supply is started, the power management apparatus 100 does not allow battery charging until the scheduled power consumption in the power supply schedule does not exceed the contracted capacity even when the battery charging is restarted. A power failure can be prevented. In addition, when the planned power consumption is reduced and a margin for the contracted capacity is generated, the resumption of the battery charging is permitted, so that the battery charging can be automatically resumed at an appropriate timing.

<Fourth Modification>
Next, a fourth modification will be described. The fourth modification is a combination of the second modification and the third modification. FIG. 14 illustrates processing of the power management apparatus 100 that is a feature of the fourth modification. The process shown in FIG. 14 is added between step S33 and step S34 of the power management routine (FIG. 6) in the embodiment. Therefore, here, the addition process will be described.

  When the microcomputer 210 of the power management apparatus 100 generates a power supply schedule in step S33, the microcomputer 210 of the power management apparatus 100 determines the current power shortage level in step S70 based on the power supply schedule and the contract power. For example, the current scheduled power consumption (total value) in the power supply schedule is compared with the contract power, and if the planned power consumption is equal to or less than the contract power, it is determined as the “power satisfaction level”.

  In addition, when the planned power consumption of the new electric device M is added and the planned power consumption exceeds the contracted power, if the battery charging of the vehicle V is stopped, the planned power consumption becomes less than the contracted power. Is determined to be “Charging Suspension Required Level”. Further, if the planned power consumption exceeds the contract power even when the battery charging of the vehicle V is stopped, it is determined as “battery power supply required level”.

  If the microcomputer 210 determines that the “power satisfaction level” is determined in step S <b> 70, the microcomputer 210 advances the process to step S <b> 34. In this case, since the power supply schedule is established in step S34, the power supply schedule is transmitted to each electrical device M as it is in step S37.

  If the microcomputer 210 determines that the level is “Charging Suspension Required Level” in Step S70, the microcomputer 210 executes a charging suspension process in Step S80. This temporary charging suspension process corresponds to the process of FIG. 10 (the process of steps S40 to S46) described in the second modification.

  If the microcomputer 210 determines that the “battery power supply level is required” in step S70, the microcomputer 210 executes a battery power supply process in step S90. This battery power supply process corresponds to the process (steps S401 to S46) of FIG. 12 described in the third modification.

  The charging ECU 70 that responds to the command of the power management apparatus 100 may perform the above-described processing of FIG. 11 or FIG. That is, if the instruction of the power management apparatus 100 is related to temporary suspension of battery charging, the process of FIG. 11 is performed. If the instruction of the power management apparatus 100 is related to battery power supply, the process of FIG. Just do it.

  According to the fourth modification, the battery charging temporary suspension process and the battery power supply process are selectively performed according to the power shortage level, so that the electric device can be effectively used within the contracted capacity range. M can be used, battery charging and battery power supply can be switched appropriately, and the battery power of the vehicle V can be used effectively.

<Fifth Modification>
Next, a fifth modification will be described. In the above-described embodiment, when the corresponding device Ma is connected to the power outlet 30 via the communication adapter 80, information on the power consumption is transmitted from both the corresponding device Ma and the communication adapter 80. . In such a case, the power management apparatus 100 generates a power supply schedule in which power consumption for two devices is scheduled for one corresponding device Ma. Therefore, the electric power that can be used for charging the battery of the vehicle V is reduced more than necessary. In addition, when the total power consumption calculated in the power supply schedule exceeds the contracted capacity (when the power supply schedule is not established), the use of the electric device M that can be originally used is restricted. For this reason, the user needs to use the communication adapter 80 in accordance with the type of the electric device M (corresponding device Ma or non-compatible device Mb).

  Therefore, in the fifth modified example, a function for determining the connected device is added to the communication adapter 80 so that the user does not need to use the communication adapter 80 according to the type of the electric device M. About another structure, it is the same as that of embodiment.

  FIG. 15 shows a device determination routine executed by the microcomputer 91 of the communication adapter 80. The device determination routine is repeatedly executed when the communication adapter 80 is powered on. When the device determination routine is started, the microcomputer 91 inputs a contact signal detected by the connection detection switch 84 in step S101, and determines whether or not the contact signal has changed from the off state to the on state. That is, it is determined whether or not the connection plug CP of the electric device M is inserted into the power supply side female terminal 82 of the communication adapter 80.

  The microcomputer 91 repeats such processing until the contact signal changes from the off state to the on state. Then, when the contact signal changes from the off state to the on state (S101: Yes), in the subsequent step S102, the request signal is transmitted from the PLC communication unit 92, and in the subsequent step S103, whether or not the response signal for the request signal has been received. Determine whether.

  The communication adapter 80 is provided with a switch (not shown) in the power supply line 86 so that the request signal is not transmitted to the power management apparatus 100 or another electrical device M. When this is transmitted, this switch is temporarily turned off (open). The switch may be provided on the power receiving side male terminal 81 side of the connection portion with the PLC communication unit 92 in the power supply line 86.

  If the microcomputer 91 can receive the response signal within a predetermined time after transmitting the request signal (S103: Yes), the device connected to the communication adapter 80 is the corresponding device Ma in step S104. In step S105, the above-described power consumption estimation process (FIG. 5) is set to the off mode. That is, the power consumption estimation process is not performed.

  On the other hand, when the response signal cannot be received within a predetermined time after transmitting the request signal (S103: No), the microcomputer 91 does not support the device connected to the communication adapter 90 in step S106. In step S107, the above-described power consumption estimation process (FIG. 5) is set to the on mode. That is, power consumption estimation processing is performed.

  When the microcomputer 91 identifies the electric device M and sets the power consumption estimation processing mode in this way, the microcomputer 91 ends this routine once and restarts the processing from step S101 again. Accordingly, when a new electrical device M is connected to the communication adapter 80, the processing from step S102 is performed, and the connected electrical device M is determined.

  According to the fifth modified example, since the apparatus includes a means for determining the presence / absence of the communication function (communication function of information regarding power consumption) of the electric device connected to the communication adapter 80, the user can select the type of the electric device M. Accordingly, it is possible to properly recognize the power consumption schedule without using the communication adapter 80 properly. Thereby, the electric power which can be used for battery charging of the vehicle V can be efficiently utilized within the contract capacity.

  The power management system according to the embodiment and the modification has been described above, but the present invention is not limited to the embodiment and the modification, and various modifications can be made without departing from the object of the present invention. .

  For example, in this embodiment, if the electric device M is replaced at the power outlet 30, the maximum power consumption value of the electric device M connected to the power outlet 30 in the past is set as the estimated power consumption value (estimated consumption). (Electric power) is adopted, but the maximum value is not necessarily used. For example, the average value of power consumption in the power supply history, the maximum value of power consumption for the most recent predetermined number of times, the average value of power consumption for the most recent predetermined number of times, or a safety factor K ( You may make it estimate the power consumption of the electric equipment M connected to the power outlet 30 using the value etc. which multiplied K> 1.0).

  DESCRIPTION OF SYMBOLS 20 ... Distribution board, 21 ... Feed line, 30 ... Power outlet, 40 ... Battery, 50 ... Charger, 52 ... Charger, 60 ... Charge cable, 70 ... Charge ECU, 71 ... Microcomputer, 72 ... PLC communication part, 73: Storage unit, 80 ... Communication adapter, 81 ... Power receiving side male terminal, 82 ... Power feeding side female terminal, 83 ... Current sensor, 84 ... Connection detection switch, 85 ... Current limiter, 90 ... Communication terminal, 91 ... Microcomputer, 92 ... PLC communication unit, 93 ... storage unit, 94 ... input / output interface, 100 ... power management device, 110 ... current limiting unit, 111 ... current limiter, 120 ... current sensor unit, 121 ... current sensor, 200 ... controller, 210 ... Microcomputer, 220 ... PLC communication unit, 230 ... Storage unit, 240 ... Drive circuit, 250 ... Input interface, 260 ... Display unit, 270 ... Work unit, 280 ... voice announcement section, CP ... connection plug, M ... electrical equipment, Ma ... compatible devices, Mb ... non-compliant device, V ... vehicle.

Claims (6)

Power consumption information acquisition means for acquiring information on power consumption transmitted from the electrical device;
Power management means for managing the power supply to the electrical device based on the acquired information on the power consumption so that the total power consumed by the plurality of electrical devices does not exceed a preset upper limit value. In the power management system,
History information acquisition means for acquiring connection replacement history information representing a connection replacement history of electrical equipment in a power outlet, and power supply history information representing a supply history of power supplied from the power outlet;
A power management system comprising: power consumption estimation means for estimating power consumption of an electrical device connected to the power outlet based on the acquired connection replacement history information and power supply history information.   The power consumption estimation means is supplied from the power outlet immediately before the power supply from the power outlet when there is no history of switching of electrical equipment at the power outlet after the power supply from the power outlet immediately before. The power management system according to claim 1, wherein power is estimated as power consumption of an electric device connected to the power outlet.   The power consumption estimation means, if there is a history of switching of electrical equipment at the power outlet after the previous power supply from the power outlet, the history of the power supplied from the power outlet The power management system according to claim 1, wherein the maximum value in is estimated as power consumption of an electric device connected to the power outlet.   4. The apparatus according to claim 1, further comprising: an apparatus determination unit configured to determine whether or not the electric apparatus connected to the power outlet has a function of transmitting information regarding power consumption. Power management system.   The power management means restricts power supply to the electrical device when detecting the start of operation of the electrical device connected to a power outlet, and then estimates the consumption of the electrical device detected to start the operation. The power management system according to any one of claims 1 to 4, wherein when the power consumption of the electric device can be permitted based on electric power, the restriction on the power supply to the electric device is released. . Power consumption information acquisition means for acquiring information on power consumption transmitted from the electrical device;
Power management means for managing the power supply to the electrical device based on the acquired information on the power consumption so that the total power consumed by the plurality of electrical devices does not exceed a preset upper limit value. In the power management system,
A non-information transmitting device operation detecting means for detecting an operation start of a non-information transmitting device which is an electric device not transmitting information on the power consumption;
When the start of operation of the non-information transmitting device is detected, the power supply to the non-information transmitting device is gradually released from the state where the power supply to the non-information transmitting device is limited, and the power supply to the non-information transmitting device is gradually Power supply gradually increasing means to increase;
When the restriction on power supply to the non-information transmitting device is gradually lifted by the power supply gradually increasing means, the total power consumed by the plurality of electric devices may exceed a preset upper limit value. In some cases, a power management system comprising: notifying means for notifying that the power supply is insufficient.

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