JP6029356B2 - Combined heat and power system - Google Patents

Description

  The present invention relates to a combined heat and power device that generates heat and electric power that can be supplied to a consumer, time-series predicted use heat quantity data relating to the heat quantity that is expected to be used by a consumer within a planned operation target period, and BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined heat and power system including a control device that performs planned operation of a combined heat and power supply device based on predicted use power data related to a time-series power value predicted to be used by a consumer.

  Patent Document 1 discloses a combined heat and power supply device that generates heat and electric power that can be supplied to a consumer, and a time-series predicted use heat amount related to the heat amount that a consumer is expected to use within a planned operation target period. A combined heat and power system is described that includes a control device that performs planned operation of a combined heat and power supply unit based on data and predicted use power data related to time series power values predicted to be used by consumers. By using such a system, an optimal operation plan for the combined heat and power system is established for the purpose of minimizing the cost required for supplying power and heat to consumers, and the operation is performed accordingly. be able to.

  In addition, although the above-mentioned estimated utilization heat amount data and prediction utilization electric power data are derived | led-out based on the actual utilization heat amount data and utilization electric power data in a consumer's past life pattern, they are only a prediction value to the last. Therefore, when unscheduled power consumption or heat consumption becomes necessary, actual utilization heat amount data and utilization power data greatly deviate from prediction utilization heat amount data and prediction utilization power data.

  In view of such a problem, correction of predicted use heat data is also performed in advance. For example, in the combined heat and power system described in Patent Document 2, the predicted data correction means is determined by the user's will by correcting the initial predicted heating load data by using the reserved heating load and generating the predicted heating load data. The heating load can be added to the predicted heating load data. Thereby, a user's will can be reflected with respect to prediction utilization calorie | heat amount data, and it can anticipate the effect that prediction heating load data can avoid avoiding large deviation from an actual heating load.

JP 2002-138902 A JP 2006-250380 A

  In recent years, electric vehicles and so-called hybrid vehicles in which power storage devices are mounted on vehicles have begun to spread. The power storage devices of these vehicles can be charged using a charger installed in a specific facility or home. For example, the power storage device of the vehicle can be charged at home after returning home to work the next day.

  However, when charging a power storage device of a vehicle at a facility where a combined heat and power system as described in Patent Document 1 is provided, the amount of charging power is part of the power load for the combined heat and power system. Therefore, by charging the power storage device, there is a possibility that the actual power usage data greatly deviates from the predicted power usage data. And there is a possibility that the combined heat and power system cannot be operated efficiently.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a combined heat and power system that can be operated efficiently while charging a power storage device of a vehicle.

In order to achieve the above object, the characteristic configuration of the combined heat and power system according to the present invention includes a combined heat and power device that generates heat and electric power that can be supplied to the consumer, and the consumer within the planned operation target period. A control device that performs planned operation of the combined heat and power supply unit based on time-series predicted use heat amount data related to the heat amount predicted to be used and predicted use power data related to a time-series power value predicted to be used by the consumer A combined heat and power system comprising:
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data ,
In accordance with the predetermined distribution rule, the control device starts charging the predicted required power amount to the power storage device after the predicted charge start possible time with a constant charge power to the power storage device. This is in determining charging power data .

According to the above characteristic configuration, the predicted required power amount is distributed within a predetermined period after the predicted charging start time according to a predetermined distribution rule, and the predicted charging power data related to time-series charging power is determined, and then the power The predicted use power data is derived by adding to the predicted power consumption data related to the time-series power predicted to be consumed by the consuming device. That is, in the state where the predicted use power data related to the time-series power value to be considered when performing the planned operation of the combined heat and power device is corrected to include the predicted required power amount to the power storage device, An operation plan can be created.
Therefore, it is possible to provide a combined heat and power system that can be efficiently operated while charging the power storage device of the vehicle.
In addition, predicted charging power data is determined such that charging of the power storage device is started after the earliest predicted charging startable time. As a result, when the power storage device is actually connected to the power line, charging of the power storage device is started earliest in time. Further, since the predicted charging power data is determined such that the charging of the predicted required power amount to the power storage device is performed with the charging power kept constant, the charging power can be equalized while charging is performed. Here, the “constant” example may be a rated generated power of the combined heat and power device as shown in an embodiment described later.

Yet another characteristic configuration of the combined heat and power system according to the present invention is predicted to be used by the consumer in a combined heat and power device that generates heat and electric power that can be supplied to the consumer, and within a planned operation target period. And a control device that performs planned operation of the combined heat and power unit based on time-series predicted use heat amount data related to the amount of heat and predicted use power data related to time-series power values predicted to be used by the consumer. A co-feed system,
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
The control device, according to the predetermined distribution rule that makes the sum of the predicted power consumption data and the predicted charge power data after the predicted charge start possible time equal to the rated generated power of the combined heat and power supply device, The point is to determine the data.

According to the above characteristic configuration, the predicted required power amount is distributed within a predetermined period after the predicted charging start time according to a predetermined distribution rule, and the predicted charging power data related to time-series charging power is determined, and then the power The predicted use power data is derived by adding to the predicted power consumption data related to the time-series power predicted to be consumed by the consuming device. That is, in the state where the predicted use power data related to the time-series power value to be considered when performing the planned operation of the combined heat and power device is corrected to include the predicted required power amount to the power storage device, An operation plan can be created.
Therefore, it is possible to provide a combined heat and power system that can be efficiently operated while charging the power storage device of the vehicle.
In addition, since the predicted required energy is distributed so that the sum of the predicted power consumption data and the predicted charging power data is equal to the rated power generation of the combined heat and power device, the combined heat and power device outputs the rated generated power. The power storage device can be charged only with the generated power of the combined heat and power supply device.

Yet another characteristic configuration of the combined heat and power system according to the present invention is predicted to be used by the consumer in a combined heat and power device that generates heat and electric power that can be supplied to the consumer, and within a planned operation target period. And a control device that performs planned operation of the combined heat and power unit based on time-series predicted use heat amount data related to the amount of heat and predicted use power data related to time-series power values predicted to be used by the consumer. A co-feed system,
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
The control device gives priority to charging the power storage device with the predicted required power amount before a time when the amount of heat predicted to be used by the consumer is maximized within a predetermined period after the predicted charging start time. The predicted charging power data is determined according to the predetermined distribution rule.

According to the above characteristic configuration, the predicted required power amount is distributed within a predetermined period after the predicted charging start time according to a predetermined distribution rule, and the predicted charging power data related to time-series charging power is determined, and then the power The predicted use power data is derived by adding to the predicted power consumption data related to the time-series power predicted to be consumed by the consuming device. That is, in the state where the predicted use power data related to the time-series power value to be considered when performing the planned operation of the combined heat and power device is corrected to include the predicted required power amount to the power storage device, An operation plan can be created.
Therefore, it is possible to provide a combined heat and power system that can be efficiently operated while charging the power storage device of the vehicle.
In addition, since it is assumed that charging to the power storage device is performed prior to the time when the amount of heat predicted to be used by the consumer is maximized, the predicted required power amount is distributed, so that the power storage device is charged. When the combined heat and power supply apparatus is operated, the heat generated therewith can be used to cover the amount of heat expected to be used by the consumer thereafter. As a result, efficient heat storage can be performed toward the time when the amount of heat predicted to be used by the consumer is maximized while charging the power storage device.

Yet another characteristic configuration of the combined heat and power system according to the present invention is predicted to be used by the consumer in a combined heat and power device that generates heat and electric power that can be supplied to the consumer, and within a planned operation target period. And a control device that performs planned operation of the combined heat and power unit based on time-series predicted use heat amount data related to the amount of heat and predicted use power data related to time-series power values predicted to be used by the consumer. A co-feed system,
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
The power storage device is a device mounted on a vehicle,
The control device specifies the predicted charging start possible time and the predicted required energy based on information received from the vehicle,
The control device is configured to obtain information on a predicted disconnection time that is next disconnected from the power line after the power storage device mounted on the vehicle is connected to the power line and starts charging from the predicted charge startable time. It is the point which makes it the said predetermined period to be the period from the said prediction charge start possible time received from the vehicle to the said prediction cutting | disconnection time.

According to the above characteristic configuration, the predicted required power amount is distributed within a predetermined period after the predicted charging start time according to a predetermined distribution rule, and the predicted charging power data related to time-series charging power is determined, and then the power The predicted use power data is derived by adding to the predicted power consumption data related to the time-series power predicted to be consumed by the consuming device. That is, in the state where the predicted use power data related to the time-series power value to be considered when performing the planned operation of the combined heat and power device is corrected to include the predicted required power amount to the power storage device, An operation plan can be created.
Therefore, it is possible to provide a combined heat and power system that can be efficiently operated while charging the power storage device of the vehicle.
In addition, charging of the power storage device mounted on the vehicle can be performed using power supplied from a power line to which the combined heat and power supply device and an external power system are connected. Further, the predicted use power data can be determined with high accuracy by using the predicted charge start possible time and the predicted required power amount specified based on the information received from the vehicle. As a result, the combined heat and power system can be operated efficiently.
Further, the control device can set the period from the predicted charging start time to the predicted disconnection time as the predetermined period to charge the power storage apparatus with the predicted required power amount during the predetermined period. As a result, between the time when the power storage device of the vehicle is connected to the power line and the next time it is disconnected from the power line (for example, the vehicle enters the facility where the combined heat and power supply system is provided, and then the vehicle leaves. In the meantime, it is possible to charge the power storage device of the vehicle with the predicted required power amount.

  Still another characteristic configuration of the combined heat and power system according to the present invention is that the power storage device is a device mounted on a vehicle, and the control device includes the predicted charge start possible time based on information received from the vehicle, and It is in the point which specifies the said prediction required electric energy.

  According to the above characteristic configuration, the power storage device mounted on the vehicle can be charged using the power supplied from the power line to which the combined heat and power supply device and the external power system are connected. Further, the predicted use power data can be determined with high accuracy by using the predicted charge start possible time and the predicted required power amount specified based on the information received from the vehicle. As a result, the combined heat and power system can be operated efficiently.

  Still another characteristic configuration of the combined heat and power system according to the present invention is that, after the power storage device mounted on the vehicle is connected to the power line and charging starts from the predicted charging start time, The information regarding the predicted disconnection time to be disconnected from the power line is received from the vehicle, and the period from the predicted charge start possible time to the predicted disconnection time is set as the predetermined period.

  According to the above characteristic configuration, the control device can set the period from the predicted charging start time to the predicted disconnection time as the predetermined period to charge the power storage device with the predicted required power amount during the predetermined period. As a result, between the time when the power storage device of the vehicle is connected to the power line and the next time it is disconnected from the power line (for example, the vehicle enters the facility where the combined heat and power supply system is provided, and then the vehicle leaves. In the meantime, it is possible to charge the power storage device of the vehicle with the predicted required power amount.

It is a figure which shows the state by which a vehicle is connected to the plant | facility provided with a combined heat and power system. It is a graph which shows the prediction utilization electric power data regarding the time-sequential electric power value estimated that a consumer uses. It is a graph which shows the time-sequential prediction utilization calorie | heat amount data regarding the calorie | heat amount anticipated that a consumer will utilize. It is a graph which shows another example of the prediction utilization electric power data regarding the time-sequential electric power value predicted that a consumer uses. (A) is a graph which shows another example of the prediction utilization electric power data regarding the time-sequential electric power value estimated that a consumer will utilize, (b) is the time series regarding the calorie | heat amount estimated that a consumer will utilize. It is a graph which shows typical prediction utilization calorie | heat amount data.

<First Embodiment>
The cogeneration system according to the first embodiment will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating a state in which a vehicle 10 is connected to a facility 30 in which a combined heat and power system is provided. As will be described later, between the facility 30 and the vehicle 10, the vehicle 10 is stored in the garage provided in the facility 30 and the vehicle-side power storage device 16 included in the vehicle 10 is electrically connected to the power line P in the facility 30. When connected to, the vehicle side power storage device 16 can be charged from the power line P of the facility 30.
Hereinafter, the configuration of the facility 30 and the configuration of the vehicle 10 will be described separately.

[Facility]
The combined heat and power system provided in the facility 30 includes a combined heat and power supply device 35 that generates heat and electric power that can be supplied to the consumer in the facility 30, and the amount of heat that is expected to be used by the consumer within the planned operation target period. The facility-side control device 34 that performs the planned operation of the combined heat and power supply device 35 based on the time-series predicted use heat amount data and the predicted use power data related to the time-series power value predicted to be used by the consumer (of the present invention) An example of a “control device”.

  Furthermore, the facility 30 includes a heat consuming device 36 such as a heating device and a hot water supply device, a power consuming device 37 such as a lighting device, an air conditioner, and various information devices, and a heat storage device 38. The electric power generated by the combined heat and power supply device 35 can be supplied to the power consuming device 37 via the power line P. An external power system 50 is also connected to the power line P, and if power is supplied from the external power system 50 to the power line P, the power consuming device 37 is supplied from the external power system 50. Power can be consumed.

  Furthermore, the facility 30 includes a facility-side connection portion 39 that can be electrically connected to the vehicle-side connection portion 19 of the vehicle 10. This facility side connection part 39 also functions as a charger as will be described later. When the vehicle 10 enters the garage of the facility 30 and the vehicle-side connection unit 19 and the facility-side connection unit 39 are electrically connected to each other, the vehicle-side power storage device 16 of the vehicle 10 is connected to the power line P of the facility 30. It will be in the state connected electrically. Then, it is possible to charge power from the power line P to the vehicle-side power storage device 16 and to discharge power from the vehicle-side power storage device 16 to the power line P. That is, when charging power from the power line P to the vehicle-side power storage device 16, it can be considered that the vehicle-side power storage device 16 is connected as part of the power load for the power line P. Alternatively, when discharging electric power from the vehicle side power storage device 16 to the power line P, it can be considered that the vehicle side power storage device 16 is connected as a part of the power supply source for the power line P.

  As described above, the power consuming device 37 can receive power from at least one of the combined heat and power supply device 35 and the external power system 50. Further, if the vehicle-side power storage device 16 of the vehicle 10 is electrically connected to the power line P of the facility 30, the vehicle-side power storage device 16 is also at least one of the combined heat and power supply device 35 and the external power system 50. Power can be supplied from one side.

  In the facility 30, the heat generated by operating the combined heat and power supply device 35 can be supplied to the heat consuming device 36 and can be stored in the heat storage device 38. The heat stored in the heat storage device 38 can be supplied to the heat consuming device 36. Alternatively, heat may be supplied to the heat consuming device 36 from a heat supply device (not shown) such as a boiler provided separately in the facility 30.

  The facility-side control device 34 included in the facility 30 creates an operation plan for the combined heat and power supply device 35 and performs operation control based on the operation plan, and the vehicle-side connection unit 19 is electrically connected to the facility-side connection unit 39. The charging power to the vehicle-side power storage device 16 is controlled when the vehicle is on. Specifically, the facility-side control device 34 controls the operation of the combined heat and power supply device 35 so as to cover the power demand amount of the power consumption device 37 and the heat demand amount of the heat consumption device 36.

  The optimum plan unit 34a of the facility-side control device 34 as the control device of the present invention plans how to operate the combined heat and power supply device 35 to cover the power load and heat load in the facility 30. Specifically, the optimum planning unit 34a uses the time series prediction usage related to the amount of heat that is expected to be used by the consumers in the facility 30 within the planned operation target period (for example, in the future 24 hours or 48 hours). The combined operation of the heat and power supply device 35 is performed based on the calorific value data and the predicted use power data related to the time-series power values predicted to be used by the consumer. At this time, the optimum planning unit 34a is for the purpose of minimizing the environmental load generated when the power supply to the power consumption device 37 and the heat supply to the heat consumption device 36 are performed, or for the purpose of minimizing the cost. Alternatively, an optimum operation plan for the combined heat and power unit 35 is created for the purpose of minimizing the primary energy. In the case where the power supply from the external power system 50 can be received, a plan may be made to cover part or all of the power demand of the power consuming device 37 with the power supplied from the external power system 50. Good. The optimum planning unit 34a is a part of the function of the facility-side control device 34 provided in the facility 30.

Information handled by the facility-side control device 34 of the facility 30 is stored in the facility-side storage unit 33 in a state that can be read and written by the facility-side control device 34. For example, in the facility 30, the amount of power consumed by the power consuming device 37, the amount of heat consumed by the heat consuming device 36, the amount of power received from the external power system 50, the amount of power generated by the cogeneration device 35, and The amount of power supplied to the vehicle 10 via the facility-side connection unit 39 can be stored in the facility-side storage unit 33 as time-series data in a set time zone unit (for example, one hour unit).
Further, the facility 30 receives input of information from a user of the facility 30 and the input / output unit 32 for outputting and displaying information handled by the facility 30, and the facility side performing information communication with the outside A communication unit 31 is provided. The facility-side communication unit 31 can be connected to the information communication network 1 such as an external Internet by wire or wireless.

  In the present embodiment, the facility 30 can always operate the combined heat and power supply device 35 to supply power to the power consumption device 37 and supply heat to the heat consumption device 36. On the other hand, the vehicle-side power storage device 16 becomes a power load or power supply source in the facility 30 only while the vehicle 10 is in the facility 30.

〔vehicle〕
The vehicle 10 described in the present embodiment is equipped with a power storage device, and when the vehicle-side connection unit 19 included in the vehicle 10 is connected to the facility-side connection unit 39 included in the facility 30, the charging power from the facility 30 to the vehicle 10 is reduced. It is comprised so that supply can be received. That is, the vehicle-side power storage device 16 included in the vehicle 10 is a portable power storage device that can be switched between connection and disconnection with the power line P. The vehicle-side power storage device 16 can be configured using a storage battery (such as a chemical battery) or an electric double layer capacitor, and a power conversion circuit such as an inverter.

  The vehicle-side control device 15 included in the vehicle 10 includes an operation control unit 15 a that controls the operation of the vehicle 10, a charge / discharge control unit 15 b that controls charge / discharge of the vehicle-side power storage device 16, and a garage of the facility 30 from the current position. The travel route deriving unit 15c for deriving the planned travel route until entering the vehicle, and the state of each part of the vehicle 10 can be detected. For example, the amount of power remaining in the vehicle-side power storage device 16 (or the amount of insufficient power until full charge) The vehicle state detection unit 15d that can detect the vehicle and the storage prediction unit 15e that predicts the predicted storage time when the vehicle travels according to the planned travel route derived by the travel route deriving unit 15c.

  The operation control unit 15a determines whether to drive the vehicle 10 with the driving force of the internal combustion engine 17a described later or the driving force of the motor / generator 17b, and gives a control command to the driving unit 17. The charge / discharge control unit 15b controls the discharging operation from the vehicle-side power storage device 16 and the charging operation to the vehicle-side power storage device 16 while switching the vehicle-side power storage device 16 to the discharge mode or the power storage mode.

  The travel route deriving unit 15c has, for example, a car navigation function. If route guidance to the facility 30 is being performed, the travel route deriving unit 15c derives the route derived by the car navigation function as a planned travel route. Alternatively, the travel route deriving unit 15c can use the planned travel route if the occupant manually inputs the planned travel route from the current position to the garage on the map using the input / output unit 13, for example. When the planned travel route is derived as described above, the warehousing prediction unit 15e predicts the predicted warehousing time when traveling according to the planned travel route derived by the travel route derivation unit 15c. In addition, the warehousing prediction unit 15e operates as a power amount required when the vehicle travels according to the planned travel route derived by the travel route deriving unit 15c, that is, the power consumption amount when the motor / generator 17b is operated as a motor and the generator. Of the vehicle-side power storage device 16 predicted when the vehicle 10 enters the garage of the facility 30 by combining the amount of power and the current power storage amount of the vehicle-side power storage device 16. Derived estimated storage amount of electricity.

  Furthermore, the vehicle 10 includes a power load device L that can consume power charged in the vehicle-side power storage device 16, a vehicle-side connection unit 19 that can be electrically connected to a facility 30 installed outside, And a travel drive unit 17 that outputs a travel drive force. The power load device L includes various electrical components (power load unit 18) such as a headlight of the vehicle 10, a motor / generator 17 b for obtaining a travel driving force of the vehicle 10, and the like.

  The travel drive unit 17 uses the motor / generator 17b as the power load device L that can use the electric power stored in the vehicle-side power storage device 16, and mechanical energy obtained by consuming the fuel as the travel drive force. And an internal combustion engine 17a. The motor / generator 17b generates power using a part of the mechanical energy output from the internal combustion engine 17a, and serves as a generator 17b (power generation unit) that can charge the generated power to the vehicle power storage device 16. Can also work. In addition, the vehicle-side control device 15 can also operate the motor / generator 17b so as to convert a part of the kinetic energy of the vehicle 10 into electric energy (regenerative power generation) when the vehicle 10 is decelerated. That is, the vehicle 10 of the present embodiment is a so-called hybrid vehicle that obtains travel driving force from at least one of the internal combustion engine 17a and the motor / generator 17b. In the vehicle 10, the amount of power consumed by the motor / generator 17 b and the power load unit 18, the amount of power generated by the motor / generator 17 b, and the facility 30 received via the vehicle side connection unit 19 as will be described later. The amount of electric power is detected by the vehicle state detection unit 15d.

Information handled by the vehicle-side control device 15 of the vehicle 10 is stored in the vehicle-side storage unit in a state that can be read and written by the vehicle-side control device 15.
The vehicle 10 accepts input of information from the occupant of the vehicle 10 and outputs and displays information handled by the vehicle 10 (for example, information input from the occupant and current charge amount information in the vehicle-side power storage device 16). An input / output unit 13 and a vehicle-side communication unit 14 that performs information communication with the outside. The vehicle-side communication unit 14 can be connected to the information communication network 1 such as the external Internet by wire or wireless. Alternatively, information communication can be performed via the vehicle-side connection unit 19 and the facility-side connection unit 39 by using the power line carrier communication technology.

  The position information acquisition unit 11 of the vehicle 10 acquires position information of the current position of the vehicle 10. The position information acquisition unit 11 is, for example, a device using a GPS function, and can acquire, for example, latitude and longitude information as position information.

The vehicle 10 transmits information on the predicted warehousing time predicted by the warehousing prediction unit 15e and the predicted storage amount at the time of warehousing to the facility 30 at a predetermined timing (for example, every 10 minutes, every 30 minutes, etc.). The data is transmitted from the unit 14 to the facility 30. Here, when the vehicle-side power storage device 16 enters the facility 30, the vehicle-side power storage device 16 of the vehicle 10 is connected to the power line P of the facility 30, so this predicted storage time is determined by the facility-side control device 34 of the facility 30. Then, it is specified as a predicted charge startable time when the vehicle side power storage device 16 can be charged. In addition, the facility-side control device 34 of the facility 30 predicts the storage of the vehicle-side power storage device 16 predicted when the vehicle 10 enters the garage of the facility 30 from the amount of power stored when the vehicle-side power storage device 16 is fully charged. By subtracting the hourly power storage amount, it is possible to specify the predicted required power amount required for charging the vehicle-side power storage device 16.
Communication between the vehicle 10 and the facility 30 is realized by wireless communication via the information communication network 1 while the vehicle 10 is traveling. Alternatively, in a situation where the vehicle 10 can be wired to the information communication network 1 or a communication line inside the facility 30, communication between the vehicle 10 and the facility 30 may be realized by wired communication.

(Create optimal operation plan)
Next, creation of the optimum operation plan of the combined heat and power unit 35 performed by the facility-side control device 34 of the facility 30 will be described. Note that the optimum planning unit 34a may sequentially create an optimum operation plan for each set timing on the day of operation, or may create an optimum operation plan at another timing. For example, when the optimum plan unit 34a creates an optimum operation plan on the day before operation or on the day of operation and causes the combined heat and power supply device 35 to execute the optimum operation plan, and when a predetermined event occurs (for example, a running vehicle The optimal operation plan is re-created when a communication such as a predicted arrival time from 10 to the facility 30 is received, or when the vehicle 10 is actually received or when the vehicle 10 is released). May be.

  The optimum planning unit 34a stores the actual power consumption data related to the past time-series power values by the power consumption device 37 stored in the facility-side storage unit 33 and the past time-series data used by the consumer by the heat consumption device 36. By referring to the heat consumption data related to the amount of heat, the time-series predicted heat usage data related to the amount of heat expected to be used by the consumer and the predicted use related to the time-series power value expected to be used by the consumer Power data can be derived. And the optimal plan part 34a minimizes the environmental load which arises when supplying the electric power to the power consumption device 37 and the heat supply to the heat consumption device 36 to cover the predicted usage heat amount data and the predicted usage power data. For the purpose, for the purpose of minimizing the cost or for the purpose of minimizing the primary energy, an optimum operation plan that defines at what timing and output the cogeneration apparatus 35 is created is created.

  When the vehicle 10 enters the garage of the facility 30, it is required to charge the vehicle-side power storage device 16 included in the vehicle 10. That is, in the facility 30, charging power required by the vehicle-side power storage device 16 is suddenly generated. In particular, if the vehicle 10 is regularly used every day for commuting or attending school, it is desirable to complete charging during a predetermined period until the next sunrise departure time.

  Therefore, in the present invention, the predicted time when the vehicle 10 enters the garage of the facility 30 and the predicted required electric energy required after entering the vehicle 10 are specified, and the necessity of performing such power supply is considered. An optimal operation plan for the combined heat and power unit 35 is created.

FIG. 2 is a graph showing predicted usage power data regarding time-series power values predicted to be used by consumers. FIG. 3 is a graph showing time-series predicted use heat quantity data related to the heat quantity expected to be used by a consumer.
In FIG. 2, the solid line indicates predicted power consumption data in the power consuming device 37 provided in the facility 30. The predicted power consumption data is derived based on the actual power consumption data consumed in the past by the power consumption device 37. From the sum of the predicted power consumption data and the predicted required power amount required for charging the vehicle-side power storage device 16, predicted utilization power data indicated by a broken line in FIG. 2 is derived. The predicted required power amount required for charging the vehicle-side power storage device 16 is predicted when the vehicle 10 enters the garage of the facility 30 from the stored power amount when the vehicle-side power storage device 16 is fully charged. It is derived by subtracting the estimated storage amount of electricity on the side power storage device 16. That is, the predicted required power amount is the power amount predicted to be necessary for fully charging the vehicle-side power storage device 16.

  Then, the facility-side control device 34 can start charging the predicted electric energy required for the vehicle-side power storage device 16 after the predicted charging start possible time after the vehicle-side power storage device 16 is connected to the power line P of the facility 30. Is determined within the predetermined period after the predicted charging start time according to the predetermined distribution rule and the predicted power consumption data related to the time-series power predicted to be consumed by the power consuming device 37. 2 is added to the predicted charging power data related to the time-series charging power determined by the distribution in FIG. In the present embodiment, since the vehicle-side power storage device 16 is connected to the power line P of the facility 30 at the predicted warehousing time, the predicted warehousing time is set as the predicted charging startable time.

  The “predetermined period” is the time when the next predicted departure time of the vehicle 10, that is, when the predicted disconnection time when the vehicle-side power storage device 16 of the vehicle 10 is next disconnected from the power line P is known. The period from the time to the predicted departure time (predicted disconnection time) can also be set as the predetermined period. For example, when the occupant of the vehicle 10 has input the next predicted departure time using the input / output unit 13, the vehicle-side communication unit 14 is configured to transmit the information to the facility 30. The facility-side control device 34 can specify the next predicted departure time of the vehicle 10. Thus, in this embodiment, after the vehicle side electrical storage apparatus 16 mounted in the vehicle 10 is connected to the power line P and the charging start is started from the predicted charging start time, the facility side control device 34 then powers the power line P. The information regarding the predicted disconnection time to be disconnected from the vehicle 10 is received from the vehicle 10, and the period from the predicted charge start possible time to the predicted disconnection time is set as the predetermined period.

  In the example shown in FIG. 2, the predicted required power amount is 10 kWh. Although what kind of distribution rule is used to distribute the predicted required power amount (that is, charging the vehicle-side power storage device 16) is a problem, in this embodiment, the facility-side control device 34 sends the vehicle-side power storage device 16 to the vehicle-side power storage device 16. The predicted charging power data shown in FIG. 2 is determined in accordance with a predetermined distribution rule in which charging of the predicted required power amount is started after the predicted charging start time with the charging power to the vehicle-side power storage device 16 kept constant. Specifically, as shown in Table 1 and FIG. 2 below, a distribution rule is adopted in which the charging power to the vehicle-side power storage device 16 is made constant at 5 kW and starts at 16:00, which is the predicted charging start time. Thus, predicted charging power data of 10 kWh (= 5 kW × 2 hours) is determined. The power value of 5 kW is the rated power of the facility side connection unit 39 that functions as a charger. That is, a predetermined distribution rule is adopted in which charging power to the vehicle-side power storage device 16 is made constant at the rated charging power and started after the predicted charging start time. By adopting such a charging plan, a plan for completing the charging of the predicted required power amount: 10 kWh in the charging period of 2 hours is made. Then, it is possible to derive time-series predicted power usage data as indicated by broken lines in FIG.

  As described above, the predicted required power amount is distributed within a predetermined period after the predicted charging start time according to a predetermined distribution rule, and the predicted charging power data related to time-series charging power is determined, and then the power consuming device The predicted power consumption data is derived by adding to the predicted power consumption data regarding the time-series power predicted to be consumed at 37. That is, in a state where the predicted use power data regarding the time-series power value to be considered when performing the planned operation of the combined heat and power supply device 35 is corrected to include the predicted required power amount to the vehicle-side power storage device 16, An operation plan of the cogeneration apparatus 35 can be created. In addition, predicted charging power data is determined such that charging of the vehicle-side power storage device 16 is started after the earliest predicted charging startable time. As a result, when the vehicle-side power storage device 16 is actually connected to the power line P, charging of the vehicle-side power storage device 16 is started earliest in time. Further, since the predicted charging power data is determined such that the charging of the predicted required power amount to the vehicle-side power storage device 16 is performed with the charging power kept constant, the charging power can be equalized while charging is performed. In particular, since the vehicle-side power storage device 16 is charged with the predicted required power amount with the rated charge power, the vehicle-side power storage device 16 can be fully charged in the shortest time. As a result, even if the vehicle 10 leaves the facility 30 at an unforeseen early time, there is an advantage that the vehicle-side power storage device 16 is likely to be fully charged at that time.

Second Embodiment
In the combined heat and power system of the second embodiment, the distribution rule for the predicted required power amount is different from the distribution rule described in the first embodiment. Hereinafter, the combined heat and power system of the second embodiment will be described, but the description of the same configuration as that of the first embodiment will be omitted.

  FIG. 4 is a graph showing predicted usage power data related to a time-series power value predicted to be used by a consumer. The example shown in FIG. 4 differs from the example shown in FIG. 2 of the first embodiment in the time zone in which the predicted required power amount: 10 kWh is distributed. Specifically, in this embodiment, the facility-side control device 34 is configured to make the sum of the predicted power consumption data and the predicted charge power data after the predicted charge start possible time equal to the rated generated power of the combined heat and power supply device 35. Predictive charging power data is determined according to the distribution rule. That is, since the rated generated power of the cogeneration apparatus 35 of this embodiment is 1 kW, the time-series predicted charging power data is determined so that the sum of the predicted power consumption data and the predicted charging power data is 1 kW. ing. Specifically, as shown in Table 2 and FIG. 4 below, distribution is performed so that charging is performed for 1 hour from 16:00 and from 23:00 to 6:00 on the next day. .

  By adopting such a distribution rule, the predicted required power amount is distributed so that the sum of the predicted power consumption data and the predicted charging power data is equal to the rated generated power of the combined heat and power device. As long as 35 is outputting the rated generated power, the vehicle-side power storage device 16 can be charged only by the generated power of the combined heat and power supply device 35. That is, the possibility that the power supplied from the external power system 50 is used for charging the vehicle-side power storage device 16 can be eliminated or reduced. On the other hand, if the predicted power consumption, which is the sum of the predicted power consumption data and the predicted charging power data, exceeds 1 kW, even if the rated generated power is output from the cogeneration device 35, the external power system 50 If you do not receive power supply, you cannot cover the predicted power usage. That is, it is necessary to charge the vehicle-side power storage device 16 with purchased power from the expensive external power system 50.

<Third Embodiment>
In the combined heat and power system of the third embodiment, the distribution rule for the predicted required power amount is different from the distribution rule described in the above embodiment. Although the combined heat and power system of the third embodiment will be described below, description of the same configuration as that of the first embodiment will be omitted.

  The broken line in FIG. 5 (a) is a graph showing predicted usage power data relating to time-series power values predicted to be used by the consumer, and FIG. 5 (b) is the amount of heat predicted to be used by the consumer. It is a graph which shows the time series prediction utilization calorie | heat amount data regarding. The example shown in FIG. 5A differs from the example shown in FIG. 2 of the first embodiment in the time zone in which the predicted required power amount: 10 kWh is distributed. Specifically, as shown in the following Table 3 and FIG. 5A, the facility-side control device 34 has the maximum amount of heat that is expected to be used by the customer within a predetermined period after the predicted charge start time. Predictive charging power data is determined according to a predetermined distribution rule that the vehicle side power storage device 16 is preferentially charged with the required amount of electric power prior to a predetermined time.

  As shown in FIG. 5 (b), the amount of heat predicted to be used by the consumer is maximized at 20:00. Accordingly, in the example shown in FIG. 5A, the generation of heat is made as close as possible to the time of heat use so that the charge of the predicted required power amount: 10 kWh is preferentially performed before 20:00. In particular, charging of 10 kWh is required for the predicted required power amount in the latest time zone at 20:00 (that is, 2 hours from 18:00) when the amount of heat predicted to be used by the consumer is maximum. . When the predicted charging power data is determined in this manner, the predicted usage power increases before the time when the amount of heat predicted to be used by the consumer is maximized. In particular, if charging of the required amount of electricity is performed in the time zone closest to the time when the amount of heat predicted to be used by the customer is maximum, the time when the amount of heat predicted to be used by the customer is maximized. The predicted power usage in the most recent time zone increases. As a result, before the time when the amount of heat predicted to be used by the customer is maximized, particularly in the time zone immediately before the time when the amount of heat predicted to be used by the customer is maximized, The possibility of driving increases. That is, since heat is generated by the combined heat and power supply device 35 immediately before the time when the amount of heat predicted to be used by the consumer is maximum, there is an advantage that the time difference until heat use is reduced and the heat dissipation loss is reduced. Is obtained.

In addition, although the example shown in FIG. 5 demonstrates the example which set the charging electric power to the vehicle side electrical storage apparatus 16 to the rated electric power (5 kW) of the facility side connection part (charger) 39, the said 2nd implementation Similarly to the embodiment, the predicted charging power data may be determined so that the sum of the predicted power consumption data and the predicted charging power data is equal to the rated generated power of the combined heat and power supply device 35.
Furthermore, as described above, it is predicted that the consumer will use the battery while preferentially charging the vehicle-side power storage device 16 with the required amount of energy before the time when the amount of heat predicted to be used by the consumer is maximized. The vehicle-side power storage device 16 may be charged with the predicted required electric energy after the time when the amount of heat to be maximized.

<Another embodiment>
<1>
The configuration of the vehicle 10 described in the above embodiment can be changed as appropriate. For example, in the above-described embodiment, the case where the vehicle 10 is a so-called hybrid vehicle including the internal combustion engine 17a, the motor / generator 17b, and the vehicle-side power storage device 16, but the vehicle 10 does not include the internal combustion engine 17a. An electric vehicle including the motor / generator 17b and the vehicle-side power storage device 16 may be used. Moreover, although the case where the power storage device is a device mounted on a vehicle is illustrated in the above embodiment, the power storage device alone may be a portable device.
The configuration of the facility 30 can be changed as appropriate. For example, another power generation facility such as a solar power generation device connected to the power line P may be provided in the facility 30.

<2>
The numerical values described in the above embodiment are described for illustrative purposes, and the present invention is not limited to these numerical values. For example, the predicted power consumption data, the predicted charging power data, the predicted usage power data, the predicted usage heat amount data, and the like described in the above embodiment are included in the scale of the facility 30, the capacity of the vehicle-side power storage device 16, the travel distance of the vehicle 10, and the like. It is a value that changes accordingly.

<3>
In the above embodiment, the exchange of information between the vehicle 10 and the facility 30 has been described with a specific example. However, what information is exchanged between the vehicle 10 and the facility 30 can be appropriately changed. is there. For example, in the above-described embodiment, the facility 30 refers to the predicted storage amount at the time of warehousing received from the vehicle 10, and shows an example in which the predicted required power amount required for charging the vehicle-side power storage device 16 is derived. The facility 30 may be changed to be transmitted after the predicted required power amount is derived by the vehicle 10. As described above, the facility 30 may be changed so that the information described as being derived by the vehicle 10 in the above-described embodiment, or the information described when being derived at the facility 30 is changed so that the vehicle 10 is derived. May be.

<4>
In the above-described embodiment, the facility-side control device 34 determines an “predetermined period” during which the vehicle-side power storage device 16 of the vehicle 10 can be charged based on information transmitted from the vehicle 10. However, the “predetermined period” may be determined by another method. For example, a predetermined fixed period, such as 10 hours from the predicted charging start possible time, or a period from the predicted charging start time to a predetermined end period (for example, 8:00 on the next day) is determined as the “predetermined period”. Such changes are also possible. Alternatively, the facility-side control device 34 stores in the facility-side storage unit 33 the actual departure time of the past vehicle 10 (the time when the vehicle-side power storage device 16 of the vehicle 10 is actually disconnected from the power line P). The next predicted departure time of the vehicle 10 can be derived based on the actual departure time in the past (for example, the average departure time for the last five days).

  INDUSTRIAL APPLICABILITY The present invention can be used for a combined heat and power system that performs planned operation of a combined heat and power device while charging a power storage device such as a vehicle.

10 Vehicle 16 Vehicle-side power storage device (power storage device)
34 Facility side control device (control device)
35 Cogeneration device 36 Heat consumption device 37 Power consumption device 50 Power system P Power line

Claims (6)

Combined heat and power supply apparatus that generates heat and electric power that can be supplied to a consumer, time-series predicted use heat amount data related to the amount of heat expected to be used by the consumer within the planned operation target period, and the consumer A combined heat and power system comprising a control device that performs a planned operation of the combined heat and power unit based on predicted power consumption data related to time-series power values predicted to be used,
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data ,
In accordance with the predetermined distribution rule, the control device starts charging the predicted required power amount to the power storage device after the predicted charge start possible time with a constant charge power to the power storage device. A combined heat and power system that determines charging power data. Combined heat and power supply apparatus that generates heat and electric power that can be supplied to a consumer, time-series predicted use heat amount data related to the amount of heat expected to be used by the consumer within the planned operation target period, and the consumer A combined heat and power system comprising a control device that performs a planned operation of the combined heat and power unit based on predicted power consumption data related to time-series power values predicted to be used,
Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
The control device, according to the predetermined distribution rule that makes the sum of the predicted power consumption data and the predicted charge power data after the predicted charge start possible time equal to the rated generated power of the combined heat and power supply device, Combined heat and power system to determine data. Combined heat and power supply apparatus that generates heat and electric power that can be supplied to a consumer, time-series predicted use heat amount data related to the amount of heat expected to be used by the consumer within the planned operation target period, and the consumer A combined heat and power system comprising a control device that performs a planned operation of the combined heat and power unit based on predicted power consumption data related to time-series power values predicted to be used,
  Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
  When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
  Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
  The control device gives priority to charging the power storage device with the predicted required power amount before a time when the amount of heat predicted to be used by the consumer is maximized within a predetermined period after the predicted charging start time. A combined heat and power system that determines the predicted charging power data according to the predetermined distribution rule. Combined heat and power supply apparatus that generates heat and electric power that can be supplied to a consumer, time-series predicted use heat amount data related to the amount of heat expected to be used by the consumer within the planned operation target period, and the consumer A combined heat and power system comprising a control device that performs a planned operation of the combined heat and power unit based on predicted power consumption data related to time-series power values predicted to be used,
  Connected to the power line connected to the cogeneration device is a power consuming device used by the consumer, an external power system, and a portable power storage device that can be switched between connection and disconnection with the power line. And
  When the control device determines that the charging of the predicted required power amount to the power storage device can be started after the predicted charge start possible time after the power storage device is connected to the power line,
  Distributing predicted power consumption data related to time-series power predicted to be consumed by the power consuming apparatus and the predicted required power amount within a predetermined period after the predicted charging start time according to a predetermined distribution rule. And adding the predicted charging power data related to the time-series charging power determined in step (a) to derive the predicted usage power data,
  The power storage device is a device mounted on a vehicle,
  The control device specifies the predicted charging start possible time and the predicted required energy based on information received from the vehicle,
  The control device is configured to obtain information on a predicted disconnection time that is next disconnected from the power line after the power storage device mounted on the vehicle is connected to the power line and starts charging from the predicted charge startable time. A combined heat and power system that receives from a vehicle and uses a period from the predicted charging start possible time to the predicted disconnection time as the predetermined period. The power storage device is a device mounted on a vehicle,
The cogeneration system according to any one of claims 1 to 3 , wherein the control device specifies the predicted charge startable time and the predicted required power amount based on information received from the vehicle.   The control device is configured to obtain information on a predicted disconnection time that is next disconnected from the power line after the power storage device mounted on the vehicle is connected to the power line and starts charging from the predicted charge startable time. The combined heat and power system according to claim 5, wherein the predetermined period is a period from a predicted reception start time to a predicted disconnection time received from a vehicle.

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