JP2013066268A - Household energy management apparatus and household energy management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a contribution to stability of a distribution system by restricting use of a power-consuming apparatus, as occasion requires in a daily life, for reducing power consumption without feeling inconvenience and also by responding to a request for a reduction in power and taking measures against frequency or voltage fluctuations indicating a sign of instability of the distribution system.SOLUTION: A household energy management apparatus comprises: connected apparatus detection means for acquiring information related to an emergency apparatus that is connected to a receptacle receiving power supply from a distribution system and is irregularly operated; operational conditions storage means for storing operational conditions of a predetermined permanent apparatus electrically connected to the distribution system beforehand therein; and operation control means for controlling an operational state of the permanent apparatus at the time of operation of the emergency apparatus on the basis of the information related to the emergency apparatus acquired by the connected apparatus detection means and the operational conditions stored by the operational conditions storage means.

Description

  Embodiments described herein relate generally to a home energy management apparatus and a home energy management system.

2. Description of the Related Art Conventionally, an energy management system that saves energy, saves costs, or reduces CO ₂ emissions by displaying or controlling the energy consumption (power consumption) of a plurality of devices in electric power consumers such as homes and stores. It is known (for example, refer nonpatent literature 1).
Conventional home energy management systems are composed of devices and control devices in the consumer, and the devices are often composed of a plurality of home appliances in the home. Non-Patent Document 1 shows the operation of the home energy management system and its effects.
Many systems have already been verified, and typical controls include the following.
(1) Air conditioner presence / absence control: Turn off the air conditioner when there are no people
(2) Lighting absence / absence control / brightness control: Turn off or darken the lights when no one is present.
(3) Standby power cut off.
In addition, the display related to energy consumption includes display of power consumption and gas consumption in the home, energy saving contest based on comparison between multiple households, advice according to outside temperature, and display of CO ₂ emissions. Is mentioned.

Residential Environment Planning Institute, October 4, 2006 "Evaluation and Analysis of Energy Saving Effects in HEMS Demonstration Test" [Search August 6, 2010] URL: http://www.nedo.go.jp/informations /events/181004/juukankyou.pdf

Conventional home energy management systems share household benefits by reducing household energy costs by reducing household energy consumption, such as electricity and gas, while ultimately reducing society's CO ₂ emissions. It aims at reduction.
However, as described above, even if the goal is to reduce household energy consumption, there are not many ratios that can be reduced by automatic control while suppressing the dissatisfaction of residents. As a result, the energy consumption depends on the residents' consciousness of participation by visualizing the energy consumption (visualization), and the upper limit is about 10%.

  In addition, when there is a demand suppression request from the commercial system side (distribution system side), when suppressing power consumption in the home, it corresponds by stopping the preset device or changing the setting to the energy saving side, In ordinary households, there are devices that suddenly consume power each time they are used, such as cooking devices, irons, and vacuum cleaners. Restricting the use of these devices will cause inconvenience in daily life.

  The present invention has been made in view of the above, and reduces power consumption and power consumption without feeling inconvenience by limiting the use of devices that consume power whenever it is necessary in daily life. Responding to demands and responding to frequency and voltage fluctuations, which are signs of instability of the distribution system, provide a home energy management device and a home energy management system that contribute to the stability of the distribution system.

The connected device detection means of the home energy management apparatus according to the embodiment acquires information related to an emergency device that is connected to an insertion port to which power is supplied from the power distribution system and operates irregularly.
The operating condition storage means stores in advance operating conditions of a predetermined permanent device that is electrically connected to the power distribution system.
Thereby, the operation control means is configured to provide the permanent installation during operation of the emergency equipment based on the information on the emergency equipment acquired by the connected equipment detection means and the operation conditions stored in the operation condition storage means. Control the operating status of equipment.

In addition, power is supplied from the power distribution system to the outlet of the home energy management system of the embodiment, and emergency equipment that is operated irregularly is connected.
Thereby, the connected device detection means of the operation control device acquires information on the emergency device.
On the other hand, the operating condition storage means stores in advance operating conditions of a predetermined permanent device that is electrically connected to the power distribution system.
Thus, the operation control unit of the operation control device operates the emergency device based on the information on the emergency device acquired by the connected device detection unit and the operation condition stored in the operation condition storage unit. Control the operating state of the permanent device at the time.

FIG. 1 is an explanatory diagram of a schematic configuration of a home energy management system. FIG. 2 is an explanatory diagram of a schematic configuration of the connected device detection apparatus. FIG. 3 is a functional configuration block diagram of the load control device. FIG. 4 is an explanatory diagram of a correspondence table between the reduction request level and the operation setting state of the permanent device. FIG. 5 is an explanatory diagram of a correspondence table between voltage fluctuation levels and operation setting states of permanent devices. FIG. 6 is an explanatory diagram of a correspondence table between frequency fluctuation levels and operation setting states of permanent devices. FIG. 7 is an explanatory diagram of a correspondence table between the operation of the emergency device and the operation setting state of the permanent device. FIG. 8 is a processing flowchart of the embodiment.

FIG. 1 is an explanatory diagram of a schematic configuration of a home energy management system.
The home energy management system 10 is roughly divided into a frequency measurement device 11, a voltage measurement device 12, a distribution board 13, a power measurement device 14, a connected device detection device 15, a load control device 16, and a reception. And a device 17.

The frequency measurement device 11 measures the frequency of power supplied from the commercial system 20 and outputs frequency measurement data Df to the load control device 16.
The voltage measuring device 12 measures the voltage of power supplied from the commercial system 20 and outputs voltage measurement data Dv to the load control device 16.
The distribution board 13 distributes the electric power supplied from the commercial system 20 and supplies it to each part in the consumer.
The power measuring device 14 measures the total power supplied to each part in the consumer, and outputs power measurement data Dp to the load control device 16.

FIG. 2 is an explanatory diagram of a schematic configuration of the connected device detection apparatus.
The connected device detection device 15 is roughly classified into devices (hereinafter referred to as emergency devices) in which an outlet plug CP is temporarily inserted into an outlet CS (electric outlet) and used. Hair dryer, vacuum cleaner, iron, etc.) IC tag (passive IC tag) 15A built in the outlet plug of 21-1 to 21-3 and the panel of the outlet CS, supplying power from the commercial system The IC tag 15A is supplied with communication power, and the IC tag reader 15B that performs wireless communication with the IC tag 15A to which the communication power is supplied is provided.

With the above configuration, when the outlet plug is inserted into the insertion port, the connected device detection device 15 communicates with the IC tag 15A incorporated in the outlet plug to read the ID of the IC tag, which will be described later. The operating device determination unit 25 (see FIG. 3) of the load control device 16 is notified. In this case, communication between the IC tag reader 15B and the load control device 16 is performed by wired communication such as power line communication, wireless communication such as wireless LAN, and the like.
As a result, the load control device 16 replaces the emergency devices 21-1 to 21-3, which are used with the outlet plugs temporarily inserted into the outlets, with the preset IDs of the IC tags 15A and the emergency devices. It can be specified based on the correspondence table with the devices 21-1 to 21-3.

FIG. 3 is a functional configuration block diagram of the load control device.
The load control device 16 is roughly classified into a power reduction request determination unit 31, a voltage comparison unit 32, a frequency comparison unit 33, a power state acquisition unit 34, an operating device determination unit 35, and a load operation condition storage unit 36. An operating condition setting unit 37, a load adjusting unit 38, and a load control unit 39.
Here, the load adjustment unit 38 and the load control unit 39 function as operation control means.
First, when a power adjustment request from an electric power company is input as a power adjustment signal, the power reduction request determination unit 31 determines a power adjustment request level (power consumption reduction request level) corresponding to the power adjustment signal. Then, the load adjustment unit 38 is notified.

  The voltage comparison unit 32 compares the voltage of the power source (electric power) measured by the voltage measurement device 12 and supplied from the commercial system 20 corresponding to the input voltage measurement data Dv with a predetermined reference voltage, The fluctuation level is determined, and the determined voltage fluctuation level is notified to the load control device 16. For example, the voltage comparison unit 32 uses 95V, 96V, 106V, and 107V as predetermined reference voltages in the case of the commercial system 20 with a nominal voltage of AC 100V, sets the voltage fluctuation level = 0 to more than 96V and less than 106V, and 106V More than 107V is set to voltage fluctuation level = 1, 107V or more is set to voltage fluctuation level = 2, 96V or less is set to 95V or more is set to voltage fluctuation level = -1, and less than 95V is set to voltage fluctuation level = -2. The voltage fluctuation level thus obtained is notified to the load adjustment unit 38.

  In this case, the state where the voltage fluctuation level is −2 is a state where the power supply capability of the commercial system 20 has the least margin with respect to the power actually supplied and used, and the state where the voltage fluctuation level is −1. Is a state in which the power supply capability of the commercial system 20 has no room for the power that is actually supplied and used. The state where the voltage fluctuation level = 0 is a state where the power supply capability of the commercial system 20 is balanced with respect to the power actually supplied and used. Furthermore, the state where the voltage fluctuation level = 1 is a state where the power supply capability of the commercial system 20 is relatively large with respect to the power actually supplied and used, and the state where the voltage fluctuation level = 2 is the commercial system. This is a state where the power supply capacity of 20 has the most margin with respect to the power actually supplied and used.

  The frequency comparison unit 33 measures the frequency fluctuation level by comparing the frequency of the power source supplied from the commercial system 20 corresponding to the frequency measurement data Df input and measured by the frequency measurement device 11 with a predetermined reference frequency. Determine and notify the load controller 16 of the determined frequency level. For example, in the case of the commercial system 20 having a nominal frequency of 50 Hz, the frequency comparison unit 33 uses 49.0 Hz, 49.5 Hz, 50.5 Hz, and 51 Hz as the predetermined reference frequency, and exceeds 49.5 Hz and less than 50.5 Hz. Frequency fluctuation level = 0, 50.5 Hz or more and less than 51 Hz is frequency fluctuation level = 1, 51 Hz or more is frequency fluctuation level = 2, 49.5 Hz or less is 49.0 Hz or more, frequency fluctuation level is −1, 49 It is determined that the frequency fluctuation level is less than 0.0 Hz, and the determined frequency fluctuation level is notified to the load adjustment unit 38.

  In this case, the state of the frequency fluctuation level = −2 is a state in which the power supply capability of the commercial system 20 has the least margin with respect to the power that is actually supplied and used, and the state of the frequency fluctuation level = −1. Is a state in which the power supply capability of the commercial system 20 has no room for the power that is actually supplied and used. The state where the frequency fluctuation level = 0 is a state where the power supply capability of the commercial system 20 is balanced with respect to the power actually supplied and used. Furthermore, the state where the frequency fluctuation level = 1 is a state where the power supply capability of the commercial system 20 is relatively large with respect to the power actually supplied and used, and the state where the frequency fluctuation level = 2 is the commercial system. This is a state where the power supply capacity of 20 has the most margin with respect to the power actually supplied and used.

The power state acquisition unit 34 acquires the state of power consumed in the consumer from the power measurement device 14 and outputs the acquired state to the load adjustment unit 38.
The operating device determination unit 25 determines the emergency devices 21-1 to 21-3 that are actually operating. Then, information for specifying each emergency equipment 21-1 to 21-3 connected to an insertion plug (outlet) and operating is acquired and notified to the load adjustment unit 38.

  In principle, the load operating condition storage unit 36 always has conditions (load operating conditions) for operating load devices (hereinafter referred to as permanent devices) 22-1 to 22-6 connected to the commercial system 20. Each reduction request level, each voltage fluctuation level, each frequency fluctuation level, and each operation emergency equipment that is connected to the commercial system 20 and operated. Specifically, the operation setting / stopping setting of the permanent devices 22-1 to 22-6 and the operation setting during operation are stored.

  Here, in the case of the example in FIG. 1, the permanent devices 22-1 to 22-6 are a microwave oven, a washing machine, lighting, an air conditioner, a storage battery, a water heater, and the like, and an outlet plug is normally provided at the outlet. It is a device that is plugged in and can be operated by supplying power from the commercial system 20 by performing an operation operation or the like. In the following description, the lighting device as the permanent device 22-3 includes a permanent device 22-3A that is a lighting device installed in the living room and a permanent device 22-3B that is a lighting device installed in the bedroom. The air conditioner as the permanent equipment 22-4 is assumed to exist, and the permanent equipment 22-4A, which is an air conditioner installed in the living room, the permanent equipment 22-4B, which is an air conditioner installed between the customers, and the air conditioner installed in the bedroom. It is assumed that there is a permanent device 22-4C.

  The operating condition setting unit 37 allows the user or operator to operate (operate) permissible conditions of the permanent devices 22-1 to 22-6 for each reduction request level, and allow operation (operating) conditions for each voltage fluctuation level and frequency fluctuation level. Is input to the load operating condition storage unit 36. Specifically, an external interface (for example, a USB interface) for downloading data corresponding to operation (operation) permission conditions is provided by connecting a setting switch (not shown), an external computer, or the like.

The load adjustment unit 38 reads the operation permissible conditions corresponding to the reduction request level, the voltage variation level, and the frequency variation level from the load operation condition storage unit 36, and corresponds to one of the load devices that can be operated among the plurality of load devices. The setting to be determined is determined and output to the load control unit 39. Device information of the emergency devices 21-1 to 21-3 that are acquired by the connected device detection device 15 and are temporarily in operation by plugging an outlet plug into an outlet (electric outlet), and load operating conditions Based on the load operating conditions stored in the storage unit 36, the permanent devices 22-1 to 22-6 that can be actually operated and their operating conditions are determined, and the determination result is notified to the load control unit 39.
The load control unit 39 performs control for stopping the operation of any of the permanent devices 22-1 to 22-6 or changing the operation state based on the determination result notified by the load adjustment unit 38. .

The receiving device 17 that receives a reduction request that is a request for adjustment of power consumption from the commercial system 20 side receives reduction request data sent from a power supplier by wired or wireless communication such as a dedicated line, the Internet, or power line communication. The DRQ is received and transmitted to the power reduction request determination unit 31 of the load control device 16. The reduction request data DRQ includes information such as the above-described reduction request level, a time zone corresponding to the reduction request, an amount of power to be reduced, or a reduction ratio.
Here, as the reduction request level, there are three levels of reduction request level = 1 to 3, and the case where the reduction request level = 3 is the strongest reduction request (when the most reduction amount is required) is taken as an example. This will be described below.

FIG. 4 is an explanatory diagram of a correspondence table between the reduction request level and the operation setting state of the permanent device.
As shown in the reduction request level-operation setting state correspondence table TB1 in FIG. 4, when an air conditioner is taken as an example, at the reduction request level = 1, the air conditioner in the living room and the air conditioner between the customers are not changed to the operating state (actually operating). The air conditioner in the bedroom stops. At the reduction request level = 2, the cooling setting between the living room and the customer is increased by 2 ° C., and the air conditioner in the bedroom is stopped. Further, at the reduction request level = 3, the living room, guest room, and bedroom air conditioners are stopped. Similarly, home appliances (washing machines, lighting devices, storage batteries, water heaters, etc.) as other load devices are similarly set to operating states corresponding to the reduction request level.

FIG. 5 is an explanatory diagram of a correspondence table between voltage fluctuation levels and operation setting states of permanent devices.
As shown in the voltage fluctuation level-operation setting state correspondence table TB2 in FIG. 5, when the air conditioner as the permanent device 22-4 is taken as an example, the permanent devices 22-4A to 22-4C are used at the voltage fluctuation level = 0-2. The living room, guest room, and bedroom air conditioners corresponding to the above are not changed to the operating state (operating as they are), and when the voltage fluctuation level = −1, the air conditioner between the living room and the guest room corresponding to the permanent equipment 22-4A and the permanent equipment 22-4B The air conditioning in the bedroom corresponding to the permanent device 22-4C is stopped by raising the cooling setting by 2 ° C. Further, at the voltage fluctuation level = −2, the air conditioners in the living room, the guest room, and the bedroom are stopped.

  Similarly, when the washing machine as the permanent device 22-2 is taken as an example, at the voltage fluctuation level = 2, the power supply capability of the commercial system 20 is in a state that has the most margin for the power that is actually supplied and used. Therefore, when an operation schedule is set in advance such as a timer operation, the operation is started earlier than the operation schedule. In FIG. 5, the case where the operation is performed with the operation schedule advanced in this way is expressed as “activation”.

  Further, when taking a storage battery as the permanent device 22-5 as an example, at the voltage fluctuation level = 1 to 2, the power supply capability of the commercial system 20 is in a state where there is room for the power that is actually supplied and used. Because there is, it is in a charged state. When the voltage fluctuation level is 0, the operation state is not changed (if the charging state is established, the charging is continued, and if the discharging state is the power supply state, the discharging is continued). Furthermore, at the voltage fluctuation level = −1 to −2, the power supply capability of the commercial system 20 is in a state where there is no room for the power that is actually supplied and used, so the power of the storage battery is used as the load device of the consumer. The battery is in a discharged state so as to supply power.

  Similarly, when the hot water storage operation of the water heater as the permanent device 22-6 is taken as an example, at the voltage fluctuation level = 1 to 2, the power supply capability of the commercial system 20 is actually supplied and used. Since there is room, there is an “activated” state in which hot water storage is started earlier than the hot water storage schedule. Further, when the voltage fluctuation level is 0, no change is made to the operating state (if the hot water is stored, the hot water is continued, and if it is a non-hot water state [hot water supply state or stopped state], the non-hot water state is continued). Further, at the voltage fluctuation level = −1 to −2, the power supply capability of the commercial system 20 is in a state where there is no room for the power that is actually supplied and used, so that the hot water is not stored. .

FIG. 6 is an explanatory diagram of a correspondence table between frequency fluctuation levels and operation setting states of permanent devices.
As shown in the frequency fluctuation level-operation setting state correspondence table TB3 of FIG. 6, when an air conditioner as a permanent device 22-4 (22-4A to 22-4C) is taken as an example, with a frequency fluctuation level = 0 to 2, The living room, the guest room, and the bedroom air conditioner as the permanent equipments 22-4A to 22-4B are not changed to the operating state (operating as they are), and the frequency fluctuation level = −1, the living rooms as the permanent equipments 22-4A and 22-4C For the air conditioner between the passengers and the passenger, the cooling setting is increased by 2 ° C., and the air conditioner in the bedroom as the permanent device 22-4C is stopped. Further, at the frequency fluctuation level = −2, the air conditioners in the living room, the guest room, and the bedroom as the permanent devices 22-4A to 22-4C are stopped.
Further, the operation of the washing machine as the permanent device 22-2, the storage battery as the permanent device 22-5, and the water heater as the permanent device 22-6 as an example is the same as the case of the voltage fluctuation level described in FIG. Therefore, detailed description thereof is omitted.

FIG. 7 is an explanatory diagram of a correspondence table between the operation of the emergency device and the operation setting state of the permanent device.
In FIG. 7, a fan, a vacuum cleaner, and an iron are listed as emergency equipments 21-1 to 21-3 that are operated by temporarily inserting an outlet plug into the insertion port.
When these emergency equipments 21-1 to 21-3 are operated, the power consumption temporarily increases. Therefore, the operation of the permanent equipments 22-1 to 22-6 is within the range where the increase is expected. To control.
Specifically, for example, when the connected device detection device 15 detects that the outlet plug CP of the iron as the emergency device 21-3 is inserted into the insertion port CS, the permanent device 22-4A and The air conditioner cooling setting between the living room and the customer as 22-C is increased by 2 ° C., the air conditioner in the bedroom as the permanent equipment 22-4B is turned off (stopped), and the washing machine as the permanent equipment 22-2 is turned off (stopped). However, the lighting device in the living room as the permanent device 22-3A is not changed to the operating state (it is operated as it is), the lighting device in the bedroom as the permanent device 22-3B is turned off (turned off), and the lighting device as the permanent device 22-5 is used. The storage battery is in a discharged state for power supply, and the water heater as the permanent device 22-6 turns off the hot water storage for reducing power consumption.

  When the connected device detection device 15 detects that the outlet plug of the cleaner as the emergency device 21-2 is inserted into the insertion port, the living room as the permanent devices 22-4A to 22-4C The air conditioner in the guest room and the bedroom is turned off (stopped), the washing machine is turned off (stopped), the lighting device in the living room as the permanent device 22-3A is not changed to the operating state (it is operated as it is), and the permanent device 22-3B The lighting device in the bedroom is turned off (the light is turned off), the storage battery as the permanent device 22-5 is in a discharged state for supplying power, and the hot water heater as the permanent device 22-6 is turned off to reduce the power consumption. (Stop.

  The above explanation is for the case where the emergency equipments 21-1 to 21-3 are each connected as a single unit. However, when a plurality of emergency equipments 21-1 to 21-3 are connected, the same permanent installation is used. For the devices 22-1 to 22-6, the setting on the side that further reduces the power consumption is applied.

Next, the operation of the embodiment will be described.
In the following description, the priority order is determined in the order of the table of FIG. 4 (low priority order) → the table of FIG. 5 → the table of FIG. 6 → the table of FIG. 7 (high priority order). The final operation setting of the permanent devices 22-1 to 22-6 is made with a higher priority setting.
The above-described reduction request level is assumed to be notified in combination with information on a request period to which the reduction request level is applied.

FIG. 8 is a processing flowchart of the embodiment.
First, the load adjustment unit 38 of the load control device 16 inputs the reduction request data DRQ from the power company via the power reduction request determination unit 31, and determines whether or not a power reduction request (reduction adjustment request) has been made. (Step S11).
If it is determined in step S11 that no power reduction request has been made (step S11; No), it is not necessary to perform power reduction (reduction adjustment), so the load control device 16 enters a standby state (step S12). ), The process proceeds again to step S11.

If it is determined in step S11 that a power reduction request has been made (step S11; Yes), the current date and time is out of the period, during the period, or during the request period in which the power reduction request is valid. It is determined which of the timings has come to an end (step S13).
If it is determined in step S13 that the current date and time is out of the period for the adjustment request period in which the power adjustment request is valid (step S13; out of period), the power adjustment period has not yet been reached. A standby state is entered (step S14).

If it is determined in step S13 that the current date and time is the timing when the period ends (step S13; period end), the setting corresponding to the power adjustment request that was valid until immediately before is canceled (step S15). The process again proceeds to step S13.
If it is determined in step S13 that the current date and time is during the adjustment request period (step S13; during the period), the load adjustment unit 38 of the load control device 16 uses the determination result of the power reduction request determination unit 31 as a result of the determination. It is determined whether or not the setting based on the setting (reduction request level setting) has been made (step S16).

If the setting based on the determination result of the power reduction request determination unit 31 (setting of the reduction request level) has not been made in the determination of step S16 (step S16; not set), the load adjustment unit 38 determines the power reduction request determination. Based on the reduction request level based on the determination result of the unit 31, operation settings of the permanent devices 22-1 to 22-6 are performed (step S17), and the process proceeds to step S18.
In the determination of step S16, when the setting based on the determination result of the power reduction request determination unit 31 (operation setting of the permanent devices 22-1 to 22-6 corresponding to the reduction request level) has already been made (step S16; The load adjustment unit 38 determines whether or not the frequency fluctuation level has fluctuated (changed) based on the comparison result of the frequency comparison unit 33 (step S18).

When the frequency fluctuation level fluctuates (changes) in the determination in step S18 (step S18; with fluctuation), the frequency fluctuation level-operation setting state correspondence table shown in FIG. 6 according to the frequency fluctuation level after fluctuation. Referring to TB3, operation settings of permanent devices 22-1 to 22-6 corresponding to the frequency fluctuation level are performed (step S19), and the process proceeds to step S20. In this case, if the same permanent device 22-1 to 22-6 has already been set to reduce power consumption, the setting is left as it is.
If it is determined in step S18 that the frequency fluctuation level has not fluctuated (step S18; no fluctuation), the load adjustment unit 38 determines whether or not the voltage fluctuation level has fluctuated based on the comparison result of the voltage comparison unit 32. Is determined (step S20).

In step S20, when the voltage fluctuation level fluctuates (step S20; with fluctuation), refer to the voltage fluctuation level-operation setting state correspondence table TB2 shown in FIG. 5 according to the voltage fluctuation level after fluctuation. Then, operation setting of the permanent devices 22-1 to 22-6 corresponding to the voltage fluctuation level is performed (step S21), and the process proceeds to step S22. Even in this case, if the same permanent device 22-1 to 22-6 has already been set to reduce power consumption, the setting is left as it is.
When the voltage fluctuation level does not fluctuate in the determination in step S20 (step S20; no fluctuation), the load adjustment unit 38 determines the difference by the connected device detection device 15 based on the determination result of the operating device determination unit 35. It is determined whether or not the emergency devices 21-1 to 21-3 into which the outlet plug CP is inserted into the slot CS have been operated (step S <b> 22).

  In the determination of step S22, when the emergency devices 21-1 to 21-3 in which the outlet plug CP is inserted into the insertion port CS by the connected device detection device 15 are activated (step S22; activated), the devices are activated. According to the emergency equipments 21-1 to 21-3, the operation equipment-operation setting state correspondence table TB4 shown in FIG. Operation settings of the devices 22-1 to 22-6 are performed (step S23), and the process proceeds to step S24.

  In the determination in step S22, if it is not detected by the connected device detection device 15 that any of the emergency devices 21-1 to 21-3 in which the outlet plug CP is inserted into the insertion port CS is operated ( In step S22; no operation), the load adjustment unit 38 outputs the operation setting of the load device to the load control unit 39 based on the setting in step S17, step S19, step S21 or step S23, and the permanent device 22-1 to Operation of 22-6, a stop, and change of an operation state (for example, cooling temperature setting, starting, etc.) are performed (step S24). In this case, if the same permanent device 22-1 to 22-6 has already been set to reduce power consumption, the setting is left as it is.

  In this case, the load control unit 39 directly switches activation, stop, setting change, etc. to the permanent devices 22-1 to 21-6 corresponding to the control standard such as ECHONET, and directly For permanent devices 22-1 to 22-6 that cannot be controlled, power supply / power cut-off is switched by a power control device provided in the distribution board 13, for example, a relay.

As described above, according to the present embodiment, when a power reduction request is made from an electric power company, the permanent devices 22-1 to 22-6 are set according to the power reduction request level corresponding to the reduction request. The power consumption can be suppressed by controlling the operating state.
At this time, there is no restriction on the use of the emergency devices 21-1 to 21-3 such as a fan, a vacuum cleaner, and an iron, and the permanent devices 22-1 to 22 are considered in consideration of the use of these devices. Since the operation state of -6 is further controlled, it is possible to reliably contribute to energy saving without causing inconvenience in daily life.

  That is, according to the present embodiment, the power consumption is reduced without causing inconvenience by restricting the use of equipment (emergency equipment) that consumes power whenever it is necessary in daily life. Responding to requests and responding to frequency and voltage fluctuations, which are signs of instability of the distribution system, can contribute to the stability of the commercial system (distribution system).

  In the above description, the predetermined reference voltage in the voltage comparison unit 32 or the predetermined reference frequency in the frequency comparison unit 33 has been described as being fixed. However, the power company changes the reference voltage or reference frequency in the reduction request data DRQ. It is also possible to distribute the data including later data and to perform the same control dynamically based on the new reference voltage or new reference frequency distributed.

In the above description, the case where each customer sells power to the power company was not described, but even when selling power, voltage fluctuations, frequency fluctuations, etc. according to the state of power sale. The same can be applied on the basis.
In the above description, only the case of the commercial system 20 as the power distribution system has been described, but the present invention can be similarly applied even when the power distribution system is the power generation system of the customer.

The load control device 16 according to the above-described embodiment includes, in terms of hardware, a control device such as a CPU, a storage device such as a ROM (Read Only Memory) and a RAM, and an external storage device such as an SSD, HDD, and CD drive device. And a display device such as a liquid crystal display device and an input device such as a keyboard, and has a hardware configuration using a normal computer.
The control program executed by the load control device 16 of the present embodiment is a file in an installable or executable format, such as a CD-ROM, a flexible disk (FD), a CD-R, a DVD (Digital Versatile Disk), or the like. It may be configured to be recorded on a computer-readable recording medium and provided.

In addition, the control program executed by the load control device 16 of the present embodiment may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. Further, the control program executed by the load control device of the present embodiment may be provided or distributed via a network such as the Internet.
Moreover, you may comprise so that the control program of the load control apparatus 16 of this embodiment may be previously incorporated in ROM etc. and provided.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Home Energy Management System 11 Frequency Measurement Device (Supply Frequency Measurement Means)
12 Voltage measuring device (supply voltage measuring means)
13 Distribution board 14 Power measuring device 15 Connected equipment detection device (connected equipment detection means)
15A IC tag 15B IC tag reader 16 Load control device (household energy management device)
Reference Signs List 17 Receiver 20 Commercial System 21-1 to 21-3 Emergency Equipment 22-1 to 22-6 Permanent Equipment 25 Operating Equipment Judgment Unit 31 Power Reduction Request Judgment Unit 32 Voltage Comparison Unit 33 Frequency Comparison Unit 34 Power Status Acquisition Unit 35 Operating equipment determination unit 36 Load operating condition storage unit (operating condition storage means)
37 Operation condition setting unit 38 Load adjustment unit (operation control means)
39 Load control unit (operation control means)
CP Outlet plug CS outlet DRQ Reduction request data Df Frequency measurement data Dp Power measurement data Dv Voltage measurement data TB1 Reduction request level-operation setting state correspondence table TB2 Voltage fluctuation level-operation setting state correspondence table TB3 Frequency fluctuation level-operation setting Status correspondence table TB4 Operating equipment-Operation setting status correspondence table

Claims (8)

A connected device detection means for acquiring information on an emergency device connected irregularly and connected to an outlet to which power is supplied from the distribution system;
Operating condition storage means for storing in advance operating conditions of a predetermined permanent device electrically connected to the power distribution system;
An operation for controlling the operation state of the permanent device during operation of the emergency device based on the information on the emergency device acquired by the connected device detection unit and the operation condition stored in the operation condition storage unit Control means;
Energy management device for home use. Receiving means for receiving a power reduction request from the distribution system side,
The operation control means controls the operation state of the permanent device during operation of the emergency device based on the operation condition corresponding to the power reduction request.
The household energy management apparatus according to claim 1. Supply frequency measuring means for measuring the frequency of power supplied from the distribution system,
The operating condition storage means stores the operating condition corresponding to a height relationship of the measured power frequency with respect to a predetermined reference frequency,
The operation control means controls the operation state of the permanent device during operation of the emergency device, based on the operation condition corresponding to the height relationship of the measured frequency with respect to the predetermined reference frequency.
The household energy management apparatus according to claim 1 or 2.   4. The household energy management apparatus according to claim 3, further comprising reference frequency changing means for changing the predetermined reference frequency according to an instruction from the outside. Supply voltage measuring means for measuring the voltage of power supplied from the power distribution system,
The operating condition storage means stores the operating condition corresponding to a height relationship of the measured voltage with respect to a predetermined reference voltage,
The operation control means controls the operation state of the permanent device during operation of the emergency device, based on the operation condition corresponding to the level relationship of the measured voltage with respect to the predetermined reference voltage.
The household energy management apparatus according to any one of claims 1 to 4.   6. The household energy management apparatus according to claim 5, further comprising reference voltage changing means for changing the predetermined reference voltage according to an instruction from the outside. The connected device detecting means is built in an outlet plug of the emergency device, and stores an IC tag for storing information for identifying the emergency device;
An IC tag reader which is provided alongside the insertion port and can acquire information for identifying the emergency device by communicating with the IC tag;
The household energy management device according to any one of claims 1 to 6, further comprising: Power supply from the power distribution system, and an outlet to which emergency equipment that operates irregularly is connected,
An operation control device that controls an operation state of a predetermined permanent device that is electrically connected to the power distribution system during operation of the emergency device, and
The operation control device is:
Connected device detection means for acquiring information on the emergency device connected to the outlet;
Operating condition storage means for storing the operating conditions of the permanent device in advance;
An operation for controlling the operation state of the permanent device during operation of the emergency device based on the information on the emergency device acquired by the connected device detection unit and the operation condition stored in the operation condition storage unit And a control means,
Home energy management system.

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