JPH06113458A - Power-system control apparatus - Google Patents

Abstract

PURPOSE: To improve overall energy efficiency of the whole entire society for utilizing a cogeneration system by installing a cogeneration load dispatching means conducting load dispatching to the cogeneration system into a load dispatching means commanding a power-supply state to a power supply line. CONSTITUTION: A central load dispatching and commanding office 3 outputs a load-dispatching signal for adjusting demand to a local load-dispatching station 5 and a dispersed load-dispatching station 7. Next, the dispersed load-dispatching station 7 executes a dispersed load-dispatching command, on the basis of a command from the central load-dispatching and commanding office 3. A discrete terminal equipment 18 receives a command from the dispersed load-dispatching station flowed on an optical-cable network 9, and outputs it to a controller 115 for a cogeneration system. Accordingly, the cogeneration system connected to the power supply line which supplies public power can be controlled from the load-dispatching means side, and the cogeneration system can be incorporated for adjusting the demand of an electric power system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling a power system to which a cogeneration system is connected.

[0002]

2. Description of the Related Art Conventionally, an electric power system is composed of power supply side equipment such as a power station and a substation, a switchyard, and a power supply line dispersed over a wide area, and a power supply line. There is. In this supply and demand adjustment, nuclear and thermal power generation adjustment,
It operates the main reservoirs and regulating reservoirs and adjusts the power generation economically.

By the way, in recent years, due to the growing concern about global environmental problems, energy supply technology focusing on total energy efficiency such as cogeneration system (cogeneration system) has begun to be adopted.

[0004]

However, in the conventional electric power system, the supply and demand is adjusted only by the technology such as pumped storage power generation and electric power storage. For this reason, there is no choice but to construct a pumped storage power plant with many restrictions on location by spending a huge amount of money and a long maturity. I couldn't.

An object of the present invention is to improve the total energy efficiency of society as a whole by utilizing a cogeneration system.

[0006]

An electric power system control device of the present invention includes a power supply line for supplying public power, a power supply command means for commanding a power supply state to the power supply line, and a power supply line for the power supply line. A cogeneration system connected, and arranged in the power supply command means, cogeneration power supply command means for performing a power supply command to the cogeneration system, and arranged in the cogeneration system,
The gist is provided with a power supply command receiving means for receiving a power supply command from the cogeneration command means, and a cogeneration control means for controlling the cogeneration system based on the power supply command received by the power supply command receiving means.

[0007]

In the electric power system control device of the present invention, when the cogeneration power supply command means arranged in the power supply command means issues a power supply command to the cogeneration system, the power supply command receiving means arranged in the cogeneration system is operated. , Receiving this, the cogeneration control means based on the power supply command,
Control the cogeneration system. Thereby, the cogeneration system connected to the power supply line that supplies the public power can be controlled from the power supply command means side.

[0008]

EXAMPLES Examples of the present invention will be described below. FIG. 1 is an overall configuration diagram of the power system control device 1. The power system control device 1 includes a central power feeding command station 3, a local power feeding station 5, a distributed power feeding command station 7, and an optical cable network 9. The central power feeding command center 3 is an organization located at the highest level of the power feeding command organization. The local power supply station 5 is in charge of direct driving operation command of the jurisdiction power system, and a plurality of local power supply stations 5 are provided according to the power supply command organization. The distributed power supply command station 7 executes a distributed power supply command, which will be described later, based on the command from the central power supply command station 3. The central power feeding command station 3 outputs a power feeding command signal for supply and demand adjustment to the local power feeding station 5 and the distributed power feeding command station 7 in order to perform power feeding work.

The optical cable network 9 includes a main terminal device 13, an optical link device 15, and an individual terminal device 18.
And an optical cable 19. Main terminal device 1
Reference numeral 3 is a dedicated terminal device of the distributed power supply command station 7, and transmits the command output from the distributed power supply command station 7 to the optical cable network 9. The individual terminal device 18 is provided in the vicinity of the house energy control system 101 that performs cogeneration control, receives a command from the distributed power supply command station 7 that has been sent over the optical cable network 9, and outputs the command to the control device 115. To do. The optical cable 19 is attached along the distribution line.

FIG. 2 shows a cogeneration system 2
It is a block diagram of 1. Cogeneration system 21
Is an air compressor C, a combustion chamber CC, a gas turbine GT
A controller 22, a boiler B, a generator G, an air conditioner 23, and a hot water storage tank 25. Generator G
A rotation speed sensor 26 is attached to the. The boiler B has a boiler temperature sensor 28 for detecting the temperature of the exhaust gas.
Is attached. The controller 22 includes a rotation speed sensor 26, a boiler temperature sensor 28, and a control device 115.
Connected to. The controller 22 is the controller 1
When the fuel supply amount signal is input from 15, the fuel f based on this is supplied to the combustion chamber CC. When the operation signal is input, based on the output of the rotation speed sensor 26, the generator G is maintained within the range of the predetermined rotation speed, and based on the output of the boiler temperature sensor 28,
The fuel f that keeps the temperature of the boiler B within a predetermined temperature range is
Supply to the combustion chamber CC. When the stop signal is input, the fuel f supply to the combustion chamber CC is stopped. The cogeneration system 21 is started, operated, stopped, and the fuel supply amount is controlled by the controller 22. The cogeneration system 21 supplies the air a compressed by the air compressor C and the fuel f to the combustion chamber CC. The gas turbine GT drives the generator G. The exhaust gas g of the gas turbine GT is supplied to the boiler B. Therefore, the amount of heat supplied to the boiler B is increased or decreased according to the fuel supply amount signal from the control device 115. Boiler B
The heat source is supplied to the air conditioner 23 via the heat exchanger 27, and the water supply supplied to the hot water storage tank 25 is heated.
The controller 22 determines that the boiler B is operating based on the temperature of the boiler B used for temperature control, and outputs a boiler operating signal to the control device 115.

The air conditioner 23 includes a controller 23A, a hot water pump P, an absorption refrigerating machine (not shown), and a main body heat exchanger. The controller 23A is the controller 11
Upon receiving the cooling signal and the heating signal from 5, the cooling water for heating or the hot water for heating is supplied to the heat exchanger for air conditioning (not shown). The hot water storage tank 25 includes a hot water supply valve 29 and a water level sensor 3
1, hot water supply pump 33, and heat retention heater 35 are provided to store and supply hot water. The air conditioner 23, the hot water storage tank 25, and the parts related thereto are controlled by the control device 1
The operating state is detected by 15 and each part is controlled.
The heat retention heater 35 is connected to the branch switch 123A shown in FIG. 3 and keeps the hot water temperature in the hot water storage tank 25 within a predetermined temperature range. The hot water supply pump 33 has a pressure chamber (not shown) and a pressure switch, and sends hot water under pressure to a hot water supply tap (not shown).

FIG. 3 is an overall configuration diagram of the house energy control system 101. Home energy control system 101
Includes a retractable meter unit 103, a retractable switch unit 105, a power unit 109, a cogeneration system 21, and a control device 115.

FIG. 4 is a block diagram of the retractable meter unit 103. The retractable meter unit 103 has a primary inlet 103A, as shown in FIG.
The secondary side terminal 103B is connected to
9 is connected. Retractable meter unit 103
Is a voltage sensor 103C and a current sensor 103D, 10
3E, electric energy calculation device 103F, and display device 103G
It has and. The power amount calculation device 103F calculates the power amount based on the detection values of the voltage sensor 103C and the current sensors 103D and 103E in accordance with a command from the control device 115. The display device 103G has a display unit 103G.
A, 103GB, 103GC, 103GD, 103G
E and 103GF are provided, and the first to sixth types of electric energy are displayed. Type 1 power is daytime power consumption, Type 2 power is nighttime power consumption, Type 3 power is daytime power transmission, and Type 4 power is nighttime. It is the amount of transmitted power. The fifth type power amount is distributed power consumption amount, and the sixth type power amount is distributed transmission power amount. The integration of the electric energy of the fifth type and the electric energy of the sixth type is executed when the distributed electric energy measurement signal is output from the control device 115.

As shown in FIG. 3, the pull-in switch unit 105 includes a pull-in switch 119, a current sensor 121, and branch switches 123A, 123B, 123C, 123D. The current sensor 121 has a retractable switch 11
9 and the branch switches 123A to 123D, and is connected to the control device 115.

The retraction switch 119 is provided with the control device 115.
The power unit 109 is connected to the secondary side of the power unit 109. FIG. 5 is a configuration diagram of the power unit 109. The power unit 109 includes a voltage regulator 127 and a storage battery 13
1, an inverter unit 133, and a system cooperation device 13
5 and. Output 127A of voltage regulator 127
A current sensor 137 and an electromagnetic switch 139 are interposed between the battery and the storage battery 131. A voltage sensor 141 is attached to the storage battery 131. The output 127A of the voltage regulator 127 and the inverter unit 133
A current sensor 143 is interposed between the input 133A and the input 133A. The voltage regulator 127 converts the power generated by the generator G into DC power having a predetermined voltage and supplies the DC power to the storage battery 131 and the inverter unit 133. The storage battery 131 is
It stores the power generated by the generator G. Inverter unit 13
3 converts the generated power of the generator G and the power stored in the storage battery 131 into power of the same quality as commercial power. The system cooperation device 135 links the commercial power of the service port 117 and the output of the inverter unit 133. The DC power applied to the input 133A of the inverter unit 13 by the system cooperation device 135 and the inverter unit 133 is output to the output terminal 133TA in cooperation with the commercial power. In addition, the electric power exceeding the amount consumed by the house energy control system 101 is transmitted to the commercial power distribution line through the pull-in switch 119 and the pull-in meter unit 103 in this order.

FIG. 6 is a block diagram of the controller 115.
The control device 115 includes an input interface 231, an input / output interface 232, a CPU 233, and a ROM 2.
35, RAM 237, and output interface 239
, Communication interface 241, keyboard 243
And a display 245 and an external storage device 247. The keyboard 243 is a distributed control key 243A.
, Independent control key 243B, and cooling control key 243C
, Heating control key 243D, hot water supply control key 243E
, Gas turbine control key 243F, and power storage control key 2
43G, power transmission control key 243H, and power generation control key 24
3I and.

The individual terminal device 18 and the controller 22 of the cogeneration system 21 are connected to the communication interface 241. The communication interface 241 performs data communication with the communication interface of the connected destination. The input interface 231 includes
The current sensor 137, the voltage sensor 141, the current sensor 143, the current sensor 121, and the water level sensor 31 are connected. The controller 23A of the air conditioner 23 is connected to the input / output interface 232. The input / output interface 232 transmits / receives data to / from the controller 23A.

The output interface 239 includes a power board 2
51 is connected, and the power panel 251 is connected with the electromagnetic switch 139, the drawing meter unit 103, the hot water supply pump 33, the hot water pump P, the hot water supply valve 29, and the drawing switch 119. . The power board 251 includes an electromagnetic switch (not shown) that is operated based on a drive signal from the output interface 239, and supplies drive power to connected equipment.

FIG. 7 is a flowchart of the distributed power supply command control processing. This processing is executed by a computer (not shown) provided in the distributed power supply command station 7 shown in FIG. First, a power supply command signal is input (S300
0). The power supply command signal is sent to the central power supply command station 3 shown in FIG.
Input the one output from.

Next, the supply and demand forecast is input (S301).
0). The supply and demand forecast is a forecast of the power supply and demand state of the next day, and the amount of power generated by solar power and wind power generation estimated by statistical processing from the climate forecast such as the sunshine state and temperature of the next day,
It is calculated based on the power consumption.

Next, an individual dispersion response signal is input (S
3030). The individual distributed response signal is returned from the residential energy control system 101 performing individual control via the optical cable network 9. For example, a signal indicating whether a predetermined residential energy control system is in the distributed control state or the independent control state, or a signal indicating the execution state of the distributed control is returned.

Next, the individual distributed power supply signal is generated (S3040). The individual distributed power supply signal is created based on the power supply command signal and the supply and demand forecast, and a distributed power supply instruction value for commanding a power transmission state to be described later to the predetermined home energy control system 101. It includes.

After the power supply command signal is generated, the individual distributed power supply command signal is output (S3060). The output of the individual distributed power supply command signal is performed to the main terminal device 13. As a result, the distributed power supply command signal is sent to the optical cable 19 via the optical link device 15.

FIG. 8 is a flowchart of the individual command input control process. The individual command input control process is performed by the control device 11
5 is executed every predetermined time. First, the individual distributed power supply command signal is input (S3230). As shown in FIG. 6, the input of the individual distributed power supply command signal is performed from the individual terminal device 18 via the communication interface 241. Next, the individual distributed power supply command is created (S3).
240). This is performed based on the input individual distributed power supply command signal.

Next, the individual distributed power supply command is output (S3250). This is performed for the distributed power supply command storage area in the RAM 237. FIG. 9 is a flowchart of the individual command output control process. The individual command output control process is executed by the control device 115 at predetermined time intervals.

First, the control state is input (S32).
60). As the control state, whether the distributed control or the independent control, which will be described later, the amount of received power, the amount of generated power, the amount of transmitted power, or the like is taken in. Dispersion, or another judgment of independent control, is the distribution / distribution of FIG.
This is performed based on the state of the distributed control flag set by the independent control selection routine and the state of the independent control flag.

Next, the individual dispersion response signal is generated (S3270). The individual distributed response signal is for transmitting the input control state to the distributed power supply command station 7. After the signal is generated, the output is executed (S3280). As a result, the operating state of the home energy control system 101 is transmitted to the distributed power supply command station 7.

FIG. 10 is a flow chart of a distributed / independent control selection processing routine. This routine is executed by the CPU 233 of the control device 115 at predetermined time intervals. First, it is determined whether distributed or independent (S330).
0). This determination is based on whether the distributed control key 243A of the keyboard 243 shown in FIG. 6 has been pressed or the independent control key 243B.
Is done depending on whether or not was pressed.

If it is determined to be the dispersion, the dispersion control flag is set (S3310). The distribution control flag is set in a predetermined area of the RAM 237. After setting the dispersion control flag, this routine is once ended. On the other hand, if it is determined to be independent, the independent control flag is set (S3320). The independent control flag is the RAM 237.
Is set in a predetermined area.

FIG. 11 is a flowchart of a task selection processing routine. This process is activated by the CPU 233 at predetermined time intervals. First, it is determined whether the distributed control flag is set or the independent control flag is set (S3400). This decision is
This is performed by setting the distributed control flag and the independent control flag in the RAM 237.

If it is determined that the flag is the independent control flag, the independent control task is executed (S3410).
If the distributed control flag is set, the distributed control task is executed (S3420). When the independent control task is selected, the independent air conditioner control process shown in FIG.
Independent hot water supply control process shown in FIG. 3, fuel supply amount control process shown in FIG. 14, independent power storage control process shown in FIG.
The independent power transmission control process shown in is selectively activated.

The independent air conditioner control shown in FIG.
When it is started by 3, it is first determined whether to perform cooling or heating (S3500). Whether to execute cooling or heating is determined when the cooling control key 243C on the keyboard 243 is pressed to set cooling execution, or when the heating control key 24 is pressed.
This is performed when 3D is pressed and heating execution is set.

If it is determined that cooling or heating is to be executed, then the boiler operation request output is performed (S35).
10). On the other hand, when it is determined that the cooling or the heating is not executed, the boiler operation non-request is issued (S3520). In the boiler operation request, a boiler operation request flag of a predetermined area in the RAM 237 is set. With no boiler operation required,
Without changing the setting state of the boiler operation request flag,
leave it as it is.

Next, it is judged whether the boiler is in operation (S
3530). The determination that the boiler B is operating is made based on the boiler operating signal input from the controller 22. Here, when it is determined that the boiler B is not operating,
Next, the cooling signal “OFF” processing (S3540) and the heating signal “OFF” processing (S3550) are performed, and the present routine is ended once. When the cooling signal is turned off, the controller 23A stops the cooling water for cooling by the air conditioner 23. When the heating signal is turned off, the controller 23A stops the production of hot water for heating by the air conditioner 23.

On the other hand, if it is determined that the boiler B is operating, then the hot water pump is operated (S356).
0). The operation of the hot water pump P is performed by the output interface 23.
This is performed by outputting a drive signal for the hot water pump to the power board 251 via the control panel 9. As a result, heat is supplied from the boiler B to the air conditioner 23.

Next, it is judged whether cooling is to be performed (S357).
0), if it is determined that the cooling is not executed, the cooling signal “OFF” is output (S3580), and if it is determined that the cooling is executed, the cooling signal “ON” is output (S359).
0). Next to the cooling signal, it is determined whether heating is to be performed (S360
0), if it is determined that the heating is not executed, the heating signal “OFF” is output (S3610), while if it is determined that the heating is executed, the heating signal “ON” is output (S362).
0).

With the independent air conditioner control processing described above, the operation of the gas turbine GT and the boiler B can be performed by operating the keyboard 243 of the control unit 115 to perform cooling and heating. it can.
When the independent hot water supply control shown in FIG. 13 is activated, it is first determined whether hot water supply is to be executed (S3700). The determination of hot water supply execution is made when hot water supply control key 243E is operated to set hot water supply execution.

If it is determined that the hot water supply is not executed, the boiler operation is not requested (S3710),
This routine is once ended. On the other hand, if it is determined that hot water supply is being performed, then it is determined whether or not the water level is lowered (S3720). The water level sensor 3 determines that the water level has dropped.
It is performed based on the water level signal sent from 1.

If the water level is not lowered, that is, if the hot water storage tank 25 is full of hot water, boiler operation non-request processing is performed (S3710), and this routine is once terminated. On the other hand, if the water level has dropped, a boiler operation request is made (S3730), it is determined whether boiler B is operating (S3740), and if it is not operating, the hot water supply valve "OFF" is output (S3750), Hot water supply valve "ON" when operating
Is output. That is, when the amount of hot water in the hot water storage tank 25 becomes insufficient, the boiler B is operated, and when it actually operates, the hot water supply valve 29 is opened to supply hot water to the hot water storage tank 25.

By the independent hot water supply control processing described above,
By operating the keyboard 243 of the control device 115, the gas turbine GT and the boiler B can be operated to perform automatic hot water supply to the hot water storage tank 25. When the fuel supply amount control of FIG. 14 is started, it is first determined whether the gas turbine is operating (S3800). The determination of the gas turbine operation is performed when the gas turbine operation is set by operating the gas turbine control key 243F. If it is determined that the gas turbine is not operating, a stop signal is output (S3810) and the present routine is ended. The stop signal is output to the controller 22.

On the other hand, if it is determined that the gas turbine is operating, then it is determined whether there is a boiler operation request (S3820). If there is no boiler operation request, then it is determined whether there is a generator operation request (S3830). The boiler operation request is determined by whether or not the boiler operation request flag is set in a predetermined area in the RAM 237. The determination of the generator operation request is made based on whether or not the generator operation request flag is set in a predetermined area in the RAM 237.

If there is no boiler operation request or generator operation request, a stop signal is output and this routine is once terminated (S3).
810), if there is any, it is then determined whether or not there is an instruction of the fuel supply amount (S3840). The fuel supply amount instruction refers to the fuel supply amount instruction area in the RAM 237. The instruction of the fuel supply amount will be described later.

If the fuel supply amount is not instructed, then the operation signal is output (S3850). The operation signal is output to the controller 22. When the controller 22 receives the operation signal, the controller 22 operates the generator G and the boiler B. On the other hand, if the fuel supply amount is instructed, then the fuel supply amount signal of the instructed value is output (S3860). The fuel supply signal is
The fuel f input to the controller 22 and supplied to the combustion chamber CC is controlled.

When it is desired to use the boiler B or the generator G by the fuel supply amount control described above, the gas turbine GT is used.
Is automatically driven. When the independent power storage control in FIG. 15 is activated, it is first determined whether power storage is to be executed (S3900). The determination of power storage execution is performed when the power storage execution key is set by operating the power storage control key 243G. If it is determined that power storage is not to be performed, then a generator operation non-request is made (S3910), and this routine is once terminated. When the generator operation is not requested, the process proceeds to the next process without changing the generator operation request flag. The generator operation request flag is
It is set in a predetermined area in the RAM 237.

If it is determined that the power storage is to be executed, then the power storage state is selected (S3920). When selecting the power storage state, "automatic" or "manual" is selected. Whether it is automatic or manual is set to "automatic" by operating the electricity storage control key 243G.
Check if "Manual" is set.

If the automatic setting is set, the electromagnetic switch is turned "on" and the present routine is terminated (S3930). “ON” of the electromagnetic switch 139 is performed by operating the power board 251 via the output interface 239. By turning on the electromagnetic switch 139,
The output of the generator G is supplied to the storage battery 131.

On the other hand, if the manual mode is set, then the electromagnetic switch is turned on (S3940) and the generator operation request output is performed (S3950). As a result, in the case of manual operation, the gas turbine GT is forcibly turned and the storage battery 13
1 charging is executed. By the independent storage battery control described above, the storage battery 131 can be charged manually or automatically.

When the independent power transmission control of FIG. 16 is activated, it is first determined whether power transmission is to be executed (S4000). The determination of power transmission execution is performed when the power transmission execution key is selected by operating the power transmission control key 243H. If it is determined that power transmission is being executed, then a generator operation request output is performed (S4010), the retracting switch "ON" is executed (S4020), and then this routine is once terminated. With the retract switch "on", the retract switch 119 is turned "on".
Put in a state. As a result, the output terminal 133TA of the inverter unit 133 and the lead-in port 117 are connected.

If it is determined that power transmission is not to be executed, it is next determined whether or not power is generated (S4030). The determination of power generation is performed when the power generation execution key is selected by operating the power generation control key 243I. If it is determined that the power is being generated, then a generator operation request output is performed (S4040),
The retracting switch "OFF" is executed (S4050). As a result, the pull-in switch 119 is turned off, and power is generated and consumed without being transmitted to the pull-in port 117.

On the other hand, when it is determined that the power is not generated, that is, when neither power transmission nor power generation is performed, the generator operation is not requested (S4060), and then the retractable switch "ON".
Is performed (S4070). As a result, commercial power can be consumed without generating power.

By the independent power transmission control described above, power reception, power transmission, and power generation can be selected and executed. The processing of FIGS. 12 to 16 is the independent control task of FIG. Next, the distributed control task of S3420 will be described. In the distributed control task, the real-time control processing routine shown in FIG. 17 is executed.

When the real-time control is activated, the individual distributed power supply command is input (S4100). The individual distributed power supply command is input from the storage area in the RAM 237. Storage in this area is performed in S3250.
Next, it is determined whether or not it is in a free state (S4110).
The free state is determined based on the individual distributed power supply command.
The free state means that the command from the distributed power supply command station 7 is in an unrestricted state, and the non-free state means that the power transmission amount is restricted from the distributed power supply command station 7. If it is determined that the free state is set, the independent control task is then executed (S4115), and the present routine is ended. That is, in the free state, the same control as in the case where the independent control flag is set is executed even if the distributed control flag is set.

On the other hand, if it is determined that the free state is not reached, then the distributed power amount measurement signal is first output (S412).
0). This dispersed electric energy measurement signal is output to the pull-in meter unit 103,
Causes the fifth type, the sixth type distributed power consumption, and the distributed transmission power amount to be measured. That is, dedicated measurement is performed during distributed control.

Next, the power transmission rank is input (S41).
30). The power transmission rank is extracted from the individual distributed power supply command. After the rank is input, the rank is determined (S414
0). It is determined whether the rank is “0”, “1”, or “2”. Rank “0” is for distributed power supply command center 7
Indicates that the restraint state from is the smallest, and rank "1"
Indicates a normal restraint state, and rank "2" indicates a state in which all power generation capacity is distributed to power transmission.

First, when it is determined that the rank is "0", the light power transmission process is executed (S4150). Details will be described later. If it is determined that the rank is “1”, the medium power transmission process is executed (S4160). Details will be described later.

On the other hand, if it is determined that the rank is "2", the maximum power transmission process is executed (S4170). Details will be described later. After the execution of any of the above processes, the independent air conditioner control (S4180), the independent hot water supply control (S4190), and the fuel supply amount control (S4200) described in FIGS. finish.

FIG. 18 is a flowchart of the light power transmission processing routine. This is the processing content of S4150.
First, the generator operation request output is performed (S4300). Then, the retract switch "ON" is output (S4310),
An instruction to supply 10% or more of fuel is output (S432).
0). As a result, the generator G is operated, the retractable switch 119 is turned on, and fuel of 10% or more is supplied to the gas turbine GT.

Next, the independent power storage control described in FIG. 15 is executed (S4330). When the above light power transmission routine is executed, the gas turbine GT is operated under a light load based on the command from the distributed power supply command station 7, and
The electric power generated by the generator G is transmitted to the power selling side.

FIG. 19 is a flowchart of the medium power transmission processing routine. This is the processing content of S4160.
First, the generator operation request output is performed (S4400). Then, the retract switch "ON" is output (S4410),
Output an instruction to supply 50% or more of fuel (S442
0), independent power storage control is executed (S4430). As a result, the generator G is operated, the retraction switch 119 is turned on, and the fuel to the gas turbine GT is 50%.
% Or more is supplied.

When the above medium power transmission routine is executed, the gas turbine GT is operated at a medium load based on a command from the distributed power supply command station 7, and the power generated by the generator G is sold. To the side. FIG. 20 is a flowchart of the maximum power transmission processing routine. This is S417
The processing content is 0. First, the generator operation request output is performed (S4500). Then, the pull-in switch "ON" is output (S4510), an instruction for a fuel supply amount of 100% or more is output (S4520), and the electromagnetic switch "ON" is executed (S4530). This activates the generator G,
The pull-in switch 119 is turned on, and 100% or more of fuel is supplied to the gas turbine GT. Further, the electromagnetic switch 139 is turned “on”.

When the above maximum power transmission routine is executed, the gas turbine GT is operated at the maximum load and the generator G is operated based on the command from the distributed power supply command station 7.
The generated power and the power of the storage battery 131 are transmitted to the power selling side. That is, the maximum electric power obtained from the house energy control system 101 can be supplied to the commercial electric power system.

[0062]

The power system control device of the present invention can control the cogeneration system connected to the power supply line for supplying public power from the side of the power supply command means. As a result, the cogeneration system can be incorporated in the supply and demand adjustment of the power system. As a result,
The cogeneration system is effectively used, and it has an extremely excellent effect that energy saving and cost reduction of the whole society can be achieved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a power system control device 1.

FIG. 2 is a configuration diagram of a cogeneration system 21.

FIG. 3 is an overall configuration diagram of a house energy control system 101.

FIG. 4 is a configuration diagram of a retractable meter unit 103.

5 is a configuration diagram of a power unit 109. FIG.

FIG. 6 is a configuration diagram of a control device 115.

FIG. 7 is a flowchart of distributed power supply command control processing.

FIG. 8 is a flowchart of an individual command input control process.

FIG. 9 is a flowchart of an individual command output control process.

FIG. 10 is a flowchart of a selection routine for distributed / independent control.

FIG. 11 is a flowchart of a task selection processing routine.

FIG. 12 is a flowchart of an independent air conditioner control process.

FIG. 13 is a flowchart of an independent hot water supply control process.

FIG. 14 is a flowchart of a fuel supply amount control process.

FIG. 15 is a flowchart of an independent power storage control process.

FIG. 16 is a flowchart of an independent power transmission control process.

FIG. 17 is a flowchart of a real-time control processing routine.

FIG. 18 is a flowchart of a light power transmission process routine.

FIG. 19 is a flowchart of a medium power transmission processing routine.

FIG. 20 is a flowchart of a maximum power transmission processing routine.

[Explanation of symbols]

 1 ... Power system control device 3 ... Central power supply station 5 ... Local power supply station 7 ... Distributed power supply command station 9 ... Optical cable network 13 ... Inverter unit 18 ... Individual terminal device 21 ... Cogeneration system 101 ... Housing energy control system

Claims (1)

[Claims] 1. A power supply line for supplying public power, a power supply command means for commanding a power supply state to the power supply line, a cogeneration system connected to the power supply line, and the power supply command means. And a power generation command receiving means for receiving a power supply command from the cogeneration command means, the power generation command receiving means being disposed in the cogeneration system, and supplying the power generation command to the cogeneration system. A power system control device comprising: a cogeneration control unit that controls the cogeneration system based on a power supply command received by the reception unit.