JP2015008588A - Power generation control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generation control system capable of efficiently eliminating insufficient power 38 by using the power 20, 35 generated by a wind generator system 7 and a small wind generator system 31 by utilizing estimated electricity demand and wind power generation amount calculated based on the meteorological data 14.SOLUTION: A power generation control system 24 calculates an electricity demand estimated from a meteorological data 14 and power generation amount prediction data 16 and 32 in a wind generator system 7 and a small wind generator system 31. When it is determined as difficult to satisfy the demand with the power supplied by the power generation system 4 only based on the prediction result of the estimation of electricity demand, an insufficient power 38 is supplemented by using the power 20 and 35 which are generated by the wind generator system 7 and a small wind generator system 31. With this, the insufficient power 38 can be efficiently eliminated.

Description

  Embodiments described herein relate generally to a power generation control system using power demand prediction data and wind power generation amount prediction data.

  In recent years, wind power generation has attracted attention together with solar power generation as power generation using renewable energy that does not depend on limited resources (oil, natural gas, uranium). In wind power generation, wind energy is rotated by a windmill (also called a blade) to convert wind energy into rotational energy. And electric energy is taken out by rotating a generator with rotational energy.

  In wind power generation, since the energy source is wind, there is no fuel cost, there are infinite resources, and there is no generation of exhaust gas, radioactive waste, or the like that causes global warming. This makes it one of the safe and clean power generation systems. However, in wind power generation, the amount of power generation varies depending on the wind conditions, so currently there is only one evaluation as a power supply source.

  Therefore, if it is possible to predict the wind direction, wind power, etc. in advance by using a weather prediction system that has a very high prediction accuracy in recent years and accurately predict the amount of power generated by wind power generation, The value of is considered to increase. Furthermore, the non-directional vertical axis type windmill is a small wind power generator that can be installed in general homes and apartment buildings, because it has a configuration that does not depend on the wind direction even in a small shape. If it can be combined with a weather forecasting system, it can be a valuable power generator.

  Regarding wind power generation, the weather information is acquired to predict the amount of power generation. The invention of the power supply method described in Patent Document 1, the power supply contact portion described in Patent Document 2, and the control method thereof, etc. Has been proposed.

JP 2004-289918 A JP 2008-289222 A

  The invention described in Patent Document 1 collects weather information about sunshine and wind power, predicts the amount of power generated by solar power generation and wind power generation on the previous day and in real time, and calculates the excess or deficiency with the power supply amount. The present invention is capable of presenting the excess / deficiency power amount. The invention described in Patent Document 2 relates to an invention relating to a control method in a power generation and supply facility including a wind power generation facility, a gas turbine facility, and a steam turbine facility that generates power using exhaust gas discharged from the gas turbine facility. It has become. When there is power generation by wind power generation, control is performed to reduce the target power generation amount in the steam turbine facility by an amount corresponding to the power generation amount.

  The present invention relates to a power generation control system that collectively controls a power generation system in a power plant, a medium or large-scale wind power generation system, and a small wind power generation system installed in a residential area. Calculated the predicted power demand and the power generation forecast data for each of the wind power generation system and the small wind power generation system, and based on the prediction result of the predicted power demand, it was judged that the supply of power from the power generation system alone was severe. In this case, the object is to provide a power generation control system that uses a wind power generation system and a small wind power generation system to share insufficient power.

A power generation control system according to an embodiment of the present invention is a power generation control system that supervises a power generation system in a power plant or the like, a medium or large wind power generation system, and a small wind power generation system installed in a residential area. ,
Based on the acquired weather data, power demand prediction data, first power generation amount prediction data in the wind power generation system, and second power generation amount prediction data in the small wind power generation system are calculated, respectively, From the acquired current power demand data and the power demand prediction data, calculate insufficient power in the entire power generation control system, and determine whether the insufficient power exceeds the first power generation amount prediction data The supply destination of the first generated power generated by the wind power generation system and / or the second generated power generated by the small wind power generation system is controlled.

  In the embodiment of the present invention, when it is determined from the result of the predicted power demand prediction that the supply of power is severe from the current power generation state in the current power generation system, the insufficient power in the entire power generation control system and the wind power By comparing the power generation amount prediction data in the power generation system, the power generation system and the small wind power generation system can be shared according to the magnitude of the insufficient power.

It is a block diagram which shows the outline of the electric power generation control system of embodiment. It is a flowchart of the electric power generation control system of embodiment.

Hereinafter, an embodiment according to the present invention will be described with reference to FIGS. 1 and 2.
In the description of the drawings, the same or similar components are denoted by the same or similar reference numerals.

  The system control unit 25 of the power generation control system 24 is a control system that supervises the power generation system 4 in a power plant or the like, the medium or large wind power generation system 7, and the small wind power generation system 31 installed in the residential area 26. It is configured. The power generation system 4 and the wind power generation system 7 constitute the power generation system 4 and the wind power generation system 7 as one set, and each set including the power generation system 4 and the wind power generation system 7 is installed in a plurality of installation areas 27. I can keep it.

  In addition, the small wind power generation system 31 is installed in the residential area 26 of the apartment house 8, the general household 8, the public hall 8, etc., and the residential area 26 in which the small wind power generation system 31 is installed has one small wind power generation system 31. The area where the base is arranged is set as one living area 26, and when a plurality of small wind power generation systems 31 are arranged close to each other, the plurality of small wind power generation systems 31 are grouped together to set the living area 26. be able to. And a several residence area can be comprised.

  The small wind power generation system 31 may be configured using a vertical axis type windmill or may be configured using a horizontal axis type windmill or the like. And the structure using the small windmill which can be installed in the residence area 26 of the apartment house 8, the general household 8, public halls, etc. 8 is employable. Thus, since the small wind power generation system 31 is installed in the residential area 26, the scale as a power generation facility is configured to be small, and the amount of generated power is smaller than that of the wind power generation system 7.

  In the following, regarding a plurality of sets including the power generation system 4 and the wind power generation system 7 and a plurality of small wind power generation systems 31, one set and one small wind power generation system 31 from the power generation system 4 and the wind power generation system 7 will be described. Although the description will be made representatively, the description below can be read as the description of the one set and one small wind power generation system 31 as the description of a plurality of sets and a plurality of small wind power generation systems 31. The configuration at the time of replacement also constitutes the present invention.

  The system control unit 25 of the power generation control system 24 includes a weather prediction data acquisition unit 1, a power demand prediction calculation unit 2, a wind power generation amount prediction calculation unit 3, an insufficient power calculation unit 6, and a power control for the power generation system 4. The configuration includes a unit 5 and a power control unit 9 for the small wind power generation system 31.

  The meteorological prediction data acquisition unit 1 collects meteorological information from the sunflower 10 of the meteorological satellite, meteorological information from the AMeDAS 11, meteorological information from the meteorological radar 12, meteorological information 13 from meteorological agencies and private weather companies, etc. 14 acquisition units. The acquired weather data 14 is subjected to desired processing and is output to the power demand prediction calculation unit 2 and the wind power generation amount prediction calculation unit 3.

  The power demand prediction calculation unit 2 calculates the power demand prediction data 15 based on the weather data 14 acquired from the weather prediction data acquisition unit 1, and calculates the calculation result as the power control unit 5 for the power generation system and the insufficient power calculation. To the unit 6.

  In the wind power generation amount prediction calculation unit 3, the first power generation amount in the wind power generation system 7 is obtained by taking in the weather data 14 such as wind speed, wind direction, and atmospheric pressure necessary for calculating the wind power generation amount based on the weather data 14. The prediction data 16 and the second power generation amount prediction data 32 in the small wind power generation system 31 are respectively calculated. Then, the calculated first power generation amount prediction data 16 is output to the power control unit 5 and the insufficient power calculation unit 6 for the power generation system. The calculated second power generation amount prediction data 32 is output to the insufficient power calculation unit 6 and the power control unit 9 for the small wind power generation system. The power generation system 4 regularly monitors the power demand, and outputs the monitored power demand data 17 to the insufficient power calculation unit 6.

The insufficient power calculation unit 6 calculates the insufficient power 38 in the entire power generation control system based on the acquired power demand prediction data 15 and the current power demand data 17 acquired from each power generation system 4. Then, based on the first power generation amount prediction data 16 and the second power generation amount prediction data 32, the calculated power shortage 38 is allocated to the power generation system 4 and the power shortage amount 33 allocated to the small wind power generation system 31. And can be sorted.
The insufficient power amount 18 is output to the power control unit 5 for the power generation system. Further, the insufficient power amount 33 is output to the power control unit 9 for the small wind power generation system.

  The power control unit 5 for the power generation system uses the acquired power demand prediction data 15, the first power generation amount prediction data 16 acquired from the wind power generation system 7, and the insufficient power amount 18 from the current power supply state. Further, the insufficient power 19 supplied from the power generation system 4 after increasing production is output to the power generation system 4.

  In the power control unit 9 for the small wind power generation system, the shortage supplied from the small wind power generation system 31 to the small wind power generation system 31 using the second power generation amount prediction data 32 and the insufficient power amount 33. Power 34 is output. The insufficient power 34 is supplied to the residential area 26 where the small wind power generation system 31 is installed.

  Next, a case where the insufficient power 38 exceeds the first power generation amount prediction data 16 will be described. At this time, the power generation system 4 gives priority to the power generation amount based on the first power generation amount prediction data 16 based on the insufficient power 19 supplied from the power generation system 4 acquired from the power control unit 5 for the power generation system. Is assigned as power to supplement the insufficient power 19 supplied from the power generation system 4. The first power generation amount prediction data 16 can be acquired from the power control unit 5 for the power generation system as one piece of information of the insufficient power 19 supplied from the power generation system 4.

  In the power generation system 4, even if control is performed to allocate the power generation amount based on the first power generation amount prediction data 16 as power to supplement the insufficient power 19 supplied from the power generation system 4, the power generation system 4 further When there is still insufficient power to be fed, the power generation system 4 performs control to increase the amount of power generation. That is, it is possible to perform control for increasing the amount of power generation such as thermal power generation and hydropower generation that can be generated by the power generation system 4.

  In the wind power generation system 7, in accordance with an instruction from the power generation system 4, the first generated power 20 generated by the wind power generation system 7 is, for example, a state in which the consumption in the wind power generation system 7 is suppressed to the minimum necessary consumption. Then, the rest is supplied to the power generation system 4. As a result, the first generated power 20 can be supplied to the power generation system 4.

  In the small wind power generation system 31, when the shortage power 34 is acquired, the power generation amount based on the second power generation amount prediction data 32 is preferentially assigned as power supplementing the shortage power 34 supplied from the small wind power generation system 31. I do. At this time, the second power generation amount prediction data 32 can be acquired from the power control unit 9 for the small wind power generation system as one piece of information on the insufficient power 33 supplied from the small wind power generation system 31.

  Then, the second generated power 35 generated by the small wind power generation system 31 is supplied to the residential area 26 where the small wind power generation system 31 is installed. Normally, the second generated power 35 generated by the small wind power generation system 31 is not directly consumed in the residential area 26 where the small wind power generation system 31 is installed, and is not a general electric company (so-called electric power company). ) And specific-scale electric utilities (so-called electric utilities).

  And when the power shortage in the residential area 26 is expected, the second generated power generated by the small wind power generation system 31 by the power company or the electric power company managing the power generation control system 24 according to the present invention. 35 is directly supplied to the residential area 26 where the small wind power generation system 31 is installed.

  Next, the case where the insufficient power 38 does not exceed the power based on the first power generation amount prediction data 16 in the wind power generation system 7 will be described. In this case, only the insufficient power amount 18 allocated to the power generation system 4 is calculated as the insufficient power 38 and output to the power control unit 5 for the power generation system. The power shortage 18 is calculated in such a manner that the power generation based on the first power generation prediction data 16 in the wind power generation system 7 is preferentially allocated to the power shortage 38 calculated by the power shortage calculator 6.

  Then, the insufficient power amount 18 assigned to the power generation system 4 is output to the power control unit 5 for the power generation system, and the power generation system 4 is supplied to each power generation system 4 based on the insufficient power amount 18. Outputs an instruction of the insufficient power 19 supplied from.

In the power generation system 4, the power generation amount based on the first power generation amount prediction data 16 in the wind power generation system 7 is preferentially supplemented with the power shortage 19 based on the information of the power shortage 19 supplied from the power generation system 4. Control to allocate as the power to be performed. In the wind power generation system 7, the first generated power 20 generated by the wind power generation system 7 is supplied to the power generation system 4 based on the insufficient power 19 supplied from the power generation system 4.
At this time, as a method of using the second generated power 35 generated by the small wind power generation system 31, it is possible to use the second generated power 35 based on a different judgment from the usage of supplementing the insufficient power 38.

Next, the case where the insufficient power 38 does not exceed the power based on the prediction data 32 in the small wind power generation system 31 will be described.
At this time, the insufficient power calculation unit 6 calculates only the insufficient power amount 33 allocated to the small wind power generation system 31 and does not calculate the insufficient power amount 18 allocated to the power generation system 4. As a result, the power generation system 4 performs normal control without performing special control.

  In the small wind power generation system 31, the second generated power 35 generated by the small wind power generation system 31 is transferred to the living area 26 where the small wind power generation system 31 is installed based on the acquired information on the insufficient power 34. Supply. At this time, as a method of using the first generated power 20 generated by the wind power generation system 7, it is possible to use the first generated power 20 based on a different judgment from the method of supplementing the insufficient power 38.

Next, the operation of the power generation control system 24 using the power demand prediction data 15 and the wind power generation amount prediction data 16 of the embodiment will be described using the flowchart shown in FIG.
As shown in FIG. 2, in step S <b> 11, the weather forecast data acquisition unit 1 collects various weather data 14, and when various weather data 14 is collected, the process moves to step S <b> 12.

In step S12, the power demand prediction calculation unit 2 calculates the power demand prediction data 15 from the weather data 14, and moves to step S13.
In step S13, the wind power generation amount prediction calculation unit 3 obtains the wind power first power generation amount prediction data 16 in the wind power generation system 7 from the weather data 14 and the small wind power generation amount prediction data 32 in the small wind power generation system 31. Calculate and move to step S14.

  In step S14, the insufficient power calculation unit 6 receives the current power demand data 17 from the power generation system 4, and based on the acquired power demand data 17 and the power demand prediction data 15 acquired from the power demand prediction calculation unit 2. The power shortage 38 in the entire power generation control system 24 is calculated. When the process of step S14 ends, the process moves to step S15.

  In step S15, when there is insufficient power 38, the process moves to step S16. When there is no insufficient power 38, the process returns to step S11, and the control from step S11 to step S15 is repeatedly executed.

  In step S <b> 16, it is determined whether the insufficient power 38 exceeds the first power generation amount prediction data 16. When it exceeds the first power generation amount prediction data 16, the process moves to step S17, and when it does not exceed, the process moves to step S30.

  In step S <b> 17, the calculated insufficient power 38 is allocated to the power generation system 4 based on the first power generation amount prediction data 16 and the second power generation amount prediction data 32 and the power shortage allocated to the small wind power generation system 31. Distribute to amount 33. Then, the insufficient power amount 18 is output to the power control unit 5 for the power generation system, and the insufficient power amount 33 is output to the power control unit 9 for the small wind power generation system. And it moves to step S18.

  In step S <b> 18, the power generation unit 4 preferentially allocates the power generation amount of the wind power first power generation amount prediction data 16 to the insufficient power amount 18 in the power generation system 4 and supplies the power control unit 5 for the power generation system to the power generation system 4. An instruction for the insufficient power 19 is performed. And it moves to step S19.

In step S <b> 19, the power generation system 4 is instructed to supply the power generation system 4 with the first generated power 20 generated by the wind power generation system 7. Then, when the supply of the first generated power 20 is not enough for the insufficient power 19, the power generation amount in the power generation system 4 is increased. And it moves to step S20.
In step S20, the first generated power 20 is supplied to the power generation system 4, and the process proceeds to step S21.

  In step S21, the power generation unit based on the second power generation prediction data 32 is preferentially supplied from the small wind power generation system 31 to the power control unit 9 for the small power generation system that has acquired the power shortage 33. The small wind power generation system 32 is controlled to allocate the power 34 as power to be supplemented. And it moves to step S22.

  In step S22, the second generated power 35 generated by the small wind power generation system 31 is supplied to the residential area 26 where the small wind power generation system 7 is installed. Then, the control in the power generation control system 24 is finished.

  In step S <b> 30, it is determined whether or not the insufficient power 38 in the entire power generation control system 24 exceeds the second power generation amount prediction data 32 in the small wind power generation system 31. When it exceeds the second power generation amount prediction data 32, the process moves to step S31, and when it does not exceed, the process moves to step S40.

  In step S31, only the insufficient power amount 18 allocated to the power generation system 4 is calculated and output to the power control unit 5 for the power generation system. The calculated insufficient power amount 18 is calculated in a form in which the power generation amount based on the first power generation amount prediction data 16 is preferentially allocated as the insufficient power 38. And it moves to step S32.

  In step S <b> 32, the shortage supplied from the power generation system 4 to the power generation system 4 based on the power deficiency 18 allocated to the power generation system 4 from the power control unit 5 for the power generation system. An instruction of power 19 is output. Then, the process proceeds to step S33.

  In step S33, the power generation system 4 is instructed to supply the power generation system 4 with the first power generation 20 generated by the wind power generation system 7, and the first power generation generated by the wind power generation system 7 is performed. 20 is supplied to the power generation system 4. Then, the control in the power generation control system 24 is finished.

  In step S40, only the insufficient power amount 33 allocated to the small wind power generation system 31 is calculated by the insufficient power calculation unit 6, and the insufficient power amount 33 is supplied from the small wind power generation system 31 in the power control unit 9 for the small wind power generation system. The shortage power 34 is output to the small wind power generation system 31. And it moves to step S41.

  In step S <b> 41, the second generated power 35 generated by the small wind power generation system 31 is supplied to the residential area 26 where the small wind power generation system 31 is installed based on the insufficient power 34. Then, the control in the power generation control system 24 is finished.

  In the embodiment of the present invention, the wind speed necessary for calculating the first power generation amount prediction data 16 and the second power generation amount prediction data 32 of the wind power generation system 7 and the small wind power generation system 31 via the weather prediction data acquisition unit 1. The weather data 14 such as the wind direction is taken into the wind power generation amount prediction calculation unit 3 and the weather data 14 such as the temperature and the atmospheric pressure arrangement is taken into the power demand prediction calculation unit 2 via the weather prediction data acquisition unit 1. it can.

  Then, when there is an insufficient power 38 calculated by the insufficient power calculation unit 6, power supply is performed so that the insufficient power 19 and 34 is preferentially supplied from the wind power generation system 7 and the small wind power generation system 31. Assignments can be made. As a result, the first generated power 20 generated by the wind power generation system 7 and the second generated power 35 generated by the small wind power generation system 31 can be supplied to help eliminate the insufficient power 38. Moreover, even when the demand for power is imminent, such as in summer, the environment-friendly wind power generation system 7 and the small wind power generation system 31 can be used.

  In addition, when power supply is imminent in the residential area 26 where the small wind power generation system 31 is installed, such as in an emergency, the second power generation that generates power in the small wind power generation system 31 in the residential area 26 Electric power 35 can be supplied. And it becomes possible to supply more electric power from many wind power generation systems.

  When the insufficient power 38 is lower than the predicted power generation amount in the second power generation amount prediction data 32, only the insufficient power 34 supplied from the small wind power generation system 31 is calculated and the small wind power generation system 31 generates power. The second generated power 35 can be supplied to the residential area 26. At this time, the first generated power 20 generated by the wind power generation system 7 may be configured not to be supplied to the power generation system 4.

  In short, the present invention is not limited to the configuration of the above-described embodiment as it is, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various forms can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, a configuration in which some components are omitted from all the components shown in the embodiment may be used. Furthermore, it can also be set as the structure which combined the component covering different embodiment suitably.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, combinations, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Weather forecast data acquisition part, 2 ... Electric power demand prediction calculation part, 3 ... Wind power generation prediction calculation part, 4 ... Electric power generation system, 5 ... Electric power control part for electric power generation systems, 6 ... Insufficient electric power calculation part, 7 ... Wind power Power generation unit, 9 ... Power control unit for small wind power generation system, 15 ... Demand power prediction data, 16 ... Power generation amount prediction data, 17 ... Current power demand data, 18 ... Insufficient power amount allocated to the power generation system, 24 ... Power generation Control system, 31 ... Small wind power generation system, 32 ... Power generation amount prediction data, 33 ... Short power amount allocated to the small wind power generation system, 35 ... Power generation in small wind power generation, 38 ... Short power in the entire power generation control system .

Claims (5)

A power generation control system that supervises a power generation system in a power plant or the like, a medium or large wind power generation system, and a small wind power generation system installed in a residential area,
Based on the acquired weather data, power demand prediction data, first power generation amount prediction data in the wind power generation system, and second power generation amount prediction data in the small wind power generation system are calculated, respectively, From the acquired current power demand data and the power demand prediction data, calculate insufficient power in the entire power generation control system, and determine whether the insufficient power exceeds the first power generation amount prediction data A power generation control system characterized by controlling a supply destination of the first generated power generated by the wind power generation system and / or the second generated power generated by the small wind power generation system.   When the insufficient power exceeds the first power generation amount prediction data, the first generated power is supplied to the power generation system, and the second generated power is installed in the residential area where the small wind power generation system is installed. The power generation control system according to claim 1, wherein the power generation control system is supplied to the power generation system.   When the insufficient power exceeds the first power generation amount prediction data and exceeds the second power generation amount prediction data, the first power generation is preferentially supplied to the power generation system, and the second power generation power is The power generation control system according to claim 1, wherein the power generation control system is not supplied to a residential area where the small wind power generation system is installed.   When the insufficient power is lower than the second power generation amount prediction data, the second power generation is preferentially supplied to a residential area where the small wind power generation system is installed, and the first power generation is generated. The power generation control system according to claim 1, wherein the power generation control system is not supplied to the system.   The power generation control system according to any one of claims 1 to 4, wherein a set of the power generation system and the wind power generation system is disposed in each of a plurality of installation areas.

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