KR102042786B1 - Apparatus for calculating power generating available time and method for operating thereof - Google Patents

Apparatus for calculating power generating available time and method for operating thereof Download PDF

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KR102042786B1
KR102042786B1 KR1020120101548A KR20120101548A KR102042786B1 KR 102042786 B1 KR102042786 B1 KR 102042786B1 KR 1020120101548 A KR1020120101548 A KR 1020120101548A KR 20120101548 A KR20120101548 A KR 20120101548A KR 102042786 B1 KR102042786 B1 KR 102042786B1
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generator
stop
time
generation
fault
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KR20140035112A (en
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박두용
임건표
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한국전력공사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/02—Details of the control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

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  • General Physics & Mathematics (AREA)
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  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Public Health (AREA)
  • Power Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Resources & Organizations (AREA)
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  • Theoretical Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The present invention relates to a power generation time calculation apparatus and a method of operating the power generation time calculation apparatus according to an embodiment of the present invention, based on the water level-generation time curve, the total power generation time corresponding to the current water level value A water level-time conversion unit for determining and outputting the power generation time for each generator by dividing the determined total power generation time by the number of normal generators, and generating power generation time for determining the power generation time for the current power generation amount for each generator based on the power generation time for each generator. It includes a time calculation unit, fault / stop reflecting generation possible time changing unit for changing the generation possible time for each generator based on the fault / stop status for each generator.

Description

Power generation time calculating device and its operation method {APPARATUS FOR CALCULATING POWER GENERATING AVAILABLE TIME AND METHOD FOR OPERATING THEREOF}

The present invention relates to a power generation time calculation apparatus and a method of operating the same.

In the competitive power market, power plants transmit power generation time and power generation as bid data to the power exchange, and the power exchange performs power trading based on the bid data received from each power plant a day ago.

Conventional power plants do not have a control system that calculates, in real time, future generation times for current generation and transmits them online to the power exchange. Accordingly, the power exchange can not know the real time generation of the generator in real time, there is a problem that can not accurately reflect the power generation time for the actual power generation on the day of power trading.

In the art, there is a need for a power generation time calculating device and an operation method thereof.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, 1st aspect of this invention provides the power generation time calculation apparatus. The generation time calculation device may determine a total generation time corresponding to a current water level value based on a water level-generation time curve, and output the generation time for each generator by dividing the determined total generation time by the number of normal generators. -Time conversion unit, generation time calculation unit for determining the generation possible time for the current generation amount for each generator based on the generation time for each generator, failure for each generator based on the value of the Trip (Trip) signal and Stop signal Fault / stop detection unit for determining whether or not / stop state, fault / stop reflecting generation time change unit for changing the generation possible time for each generator based on the fault / stop status for each generator, trip signal and stop A stop detection unit that determines whether all generators are in a stopped state instead of a fault based on the value of the Stop signal. Changing the base to the failure / stop reflect progress can still changing the power generation time by the generator from the time changing section reflects the development time should include a pohamreul.

A second aspect of the present invention provides a method of operating a power generation time calculating device. In the operation method of the power generation time calculation apparatus, the water level-time conversion unit determines the total power generation time corresponding to the current water level value based on the water level-generation time curve, and converts the determined total power generation time into the number of normal generators. Dividing the process of outputting the generation time for each generator, the generation time calculation unit, the process of determining the generation possible time for the current generation amount by generator based on the generation time for each generator, the fault / stop detection unit, trip (Trip) The generator determines the fault / stop state for each generator based on the signal and the stop signal value, and the fault / stop reflection power generation time change unit is determined based on the fault / stop state for each generator. The process of changing the power generation time for each power generation unit and the stop detection unit determine whether all generators are in a stopped state instead of a failure state based on the values of the trip signal and the stop signal. And a process of changing the generation possible time for each generator from the failure / stopping reflection generation possible time changing unit based on whether or not the stop reflection generation possible time changing unit is based on whether all generators are in a stopped state instead of a failure. do.

In addition, the solution of the said subject does not enumerate all the characteristics of this invention. Various features of the present invention and the advantages and effects thereof may be understood in more detail with reference to the following specific embodiments.

An apparatus capable of generating power generation time and a method of operating the same may be provided.

1 is a block diagram showing the configuration of a power generation time calculation apparatus according to an embodiment of the present invention;
2 is an exemplary view showing an operation method of a generation time calculation apparatus according to an embodiment of the present invention;
3 is an exemplary view showing a water level-generation time curve according to an embodiment of the present invention;
4 is an exemplary view illustrating a method for displaying generation amount and generation time for each generator according to an embodiment of the present invention; and
5 is a flowchart illustrating a method of operating a power generation time calculating apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Shape and size of the elements in the drawings may be exaggerated for more clear description.

Hereinafter, the present invention will be described with respect to the generation time calculation apparatus and its operation method. In particular, the present invention is to determine the power generation time for each generator based on the current water level value, and for the power generation time calculation apparatus and its operation method for changing the power generation time for each generator according to the fault / stop state for each generator Explain.

1 is a block diagram showing the configuration of a power generation time calculation apparatus according to an embodiment of the present invention.

As shown, the generation time calculation device, the water level-time conversion unit 110, the generation time calculation unit 120, failure / stop detection unit 130, failure / stop reflecting generation amount change unit 140, failure / Stop reflecting generation possible time changing unit 150, the stop detection unit 160, stop reflecting generation possible time changing unit 170, stop reflection generation amount changing unit 180 is included.

Referring to FIG. 1, the water level-time converting unit 110 determines a total power generation time corresponding to a current water level value based on a water level-generation time curve, and converts the determined total power generation time into the number of normal generators. It divides and outputs generation time by generator.

The power generation time calculation unit 120 determines the power generation time for the current power generation amount for each generator based on the power generation time for each generator from the water level-time conversion unit 110.

The failure / stop detection unit 130 determines whether a failure / stop state for each generator.

The failure / stop reflecting generation amount change unit 140 changes the current generation amount for each generator based on a failure / stop state for each generator.

The fault / stop reflecting generation possible time changing unit 150 changes the generation possible time for each generator based on the fault / stop state for each generator.

The stop detector 160 determines whether all generators are in a stopped state, not a failure.

The stop reflecting generation possible time changing unit 170 changes the generation possible time for each generator from the fault / stop reflecting generation possible time changing unit 150 based on whether all generators are in a stopped state rather than a failure. Output to the control terminal (RTU: Remote Test Unit).

The stop reflection generation amount change unit 180 changes the current generation amount for each generator from the failure / stop reflection generation amount change unit 140 based on whether all generators are in a stopped state instead of a failure state and outputs the generated power to a remote control terminal. .

2 is an exemplary view showing an operation method of a power generation time calculation apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the water level-time converting unit 210 of the power generation time calculating apparatus 200 determines a total power generation time corresponding to the current water level value based on the water level-generation time curve, and the determined The total power generation time is divided by the number of normal generators and outputs power generation time for each generator to the power generation time calculation units 220-1 and 220-2 for each power generator. That is, the level-time converter 210 may determine the generation time F (x) for the level value x based on the level-generation time curve for the reference generation amount as shown in FIG. 3. Here, the number of data that can be accepted as an input value in one F (x) is determined due to the F (x) characteristic. Accordingly, FIG. 2 will be described using two F (x) as an example. For example, when the current water level value is 840, the corresponding power generation time is output as a constant value by the top F (x) which can accept a water level value in the range of (832 to 852.9) as an input value. The lower F (x), which can accept the water level value in the range (852.9 ~ 860) as an input value, outputs a value of '0' because it does not accept 840 as the input value, and the upper F (x) and the lower F The comparator is connected to the upper F (x) and the lower F (x) to finally output a value other than '0' among the output values of (x).

The power generation time calculation unit 220-1 and 220-2 for each generator multiplies the power generation time for each generator from the water level-time conversion unit 210 by dividing the reference power generation amount by the current power generation amount of the corresponding generator, and correspondingly. Determining the possible generation time for the current generation amount of the generator, and outputs to the corresponding failure / stop reflecting generation possible time change unit (250-1, 250-2).

The failure / stop detection unit 230 determines for each generator whether the failure / stop state. For example, based on the values of the trip signal and the stop signal of the first generator, it is determined whether the first generator is in a fault / stop state, and the trip signal and the stop ( Based on the value of the Stop) signal, it is possible to determine whether the generator 2 is in a fault / stop state. In addition, through this, the failure / stop detection unit 230 may determine the number of generators in the normal state rather than the failure / stop state.

The failure / stop reflection generation amount change unit 240-1 and 240-2 for each generator changes the current generation amount of the corresponding generator to '0' when the generator is in a failure / stop state, and corresponding stop reflection generation amount change unit 280 -1, 280-2), and if the generator is not in a fault / stop state, outputs the current generation amount of the generator as it is to the corresponding stop reflecting power generation change unit (280-1, 280-2).

Fault / stop reflection for each generator The generation possible time changing unit 250-1 and 250-2 corresponds to the corresponding generation possible time calculation unit 220-1 and 220-2 when the generator is in a fault / stop state. Change the power generation time of the generator to '0' and output it to the corresponding stop reflection power generation time change unit 270-1, 270-2, and if the generator is not in a fault / stop state, the power generation time corresponding to the generator The power generation time of the generator from the calculation units 220-1 and 220-2 is outputted to the corresponding stop reflecting power generation time change units 270-1 and 270-2 as they are.

The stop detector 260 determines whether all generators are in a stopped state, not a failure. For example, based on the values of Trip and Stop signals of all generators, namely, Unit 1 and Unit 2 generators, it is possible to determine whether all generators are in a stopped state instead of a fault.

The stop reflection generation possible time changing units 270-1 and 270-2 for each generator are corresponding failure / stop reflection generation generation time changing units 250-1 and 250-2 when all generators are in a stopped state instead of a failure. Change the generation time of the corresponding generator from the generator to the generation time for each generator from the water level-time converter 210, and output to the remote control terminal. The power generation time of the generator from the power generation time change unit 250-1 and 250-2 is output as it is to the remote control terminal.

Generator-specific stop reflection generation amount change unit (280-1, 280-2) is a generator from the corresponding failure / stop reflection generation amount change unit (240-1, 240-2) when all generators are in a stopped state, not a failure Change the current generation amount to the standard generation amount and output it to the remote control terminal. If all generators are not in the stopped state, the current generation amount of the corresponding generator from the corresponding fault / stop reflecting generation amount change unit 240-1, 240-2. Is output to the remote control terminal as it is.

Accordingly, the remote control terminal can display the power generation time and the generation amount of each generator through the human machine interface (HMI). For example, as shown in FIG. 4, the remote control terminal may display a generation amount and a generation possible time of each generator in a bar graph, or may display a total generation amount by time as a number.

5 is a flowchart illustrating a method of operating a power generation time calculating device according to an embodiment of the present invention.

Referring to FIG. 5, the water level-time converting unit of the power generation time calculator determines a total power generation time corresponding to a current water level value based on the water level-generation time curve in step 501, and normalizes the determined total power generation time. The generation time for each generator is output by dividing by the number of generators.

In operation 503, the power generation time calculator of the power generation time calculator determines the power generation time for the current power generation amount for each generator based on the power generation time for each generator from the water level-time converter.

In step 505, the failure / stop detection unit of the power generation time calculator determines whether the failure / stop state is in the generator.

After that, the fault / stop reflecting power generation time changing unit of the power generation time calculating device changes the power generation time for each generator based on the fault / stop state for each generator in step 507. That is, when the generator is in a fault / stop state, the generator possible time of the generator is changed to '0', and when the generator is not in a fault / stop state, the generator's generation time is maintained as it is.

Thereafter, the failure / stop reflection generation amount change unit of the generation time calculation device changes the current generation amount for each generator based on the failure / stop status of each generator in step 509. That is, when the generator is in a fault / stop state, the current generation amount of the generator is changed to '0', and when the generator is not in a fault / stop state, the current generation amount of the generator is maintained as it is.

In operation 511, the stop detector of the power generation time calculator determines whether all generators are in a stopped state instead of a failure state.

After that, the stop reflecting generation possible time changing unit of the generation possible time calculating device changes the generation possible time for each generator from the fault / stop reflecting generation possible time changing unit based on whether all generators are in a stopped state instead of a failure in step 513. do. That is, when all the generators are in a stopped state instead of a failure, the generation possible time for each generator from the failure / stop reflecting generation possible time changing unit is changed to the generation time for each generator from the water level-time conversion unit, and all generators Is not in the stopped state, the power generation time for each generator from the fault / stop reflection power generation time change unit is maintained as it is.

In operation 515, the stop reflecting generation amount change unit of the generation possible time calculating device changes the current generation amount for each generator from the fault / stop reflecting generation amount change unit based on whether all generators are in a stopped state instead of a failure state. That is, when all generators are in a stopped state instead of a failure, the current generation amount for each generator from the failure / stop reflecting generation amount changing unit is changed to a reference generation amount, and when all generators are not in a stopped state, the failure / stop reflecting generation amount is changed. Maintain current generation amount by generator from the department.

Thereafter, the power generation time calculating device terminates the algorithm according to the present invention.

As described above, the present invention determines a power generation time for each generator based on the current water level value, and the power generation time calculation device for operating the power generation time for each generator and its operation method according to whether the fault / stop state for each generator is present. By providing the power plant, the power plant can calculate the future generation time for the current generation in real time and send it online to the power exchange, and the power exchange can know in real time the successive generation time of the generator. There is an advantage that can accurately reflect the development time for the. As a result, the generators in the nationwide system can be operated efficiently,

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations can be made without departing from the technical spirit of the present invention described in the claims. It will be obvious to those of ordinary skill in the field.

110: water level time conversion unit
120: generation time calculation unit
130: fault / stop detection unit
140: failure / stop reflection generation amount change unit
150: failure / stop reflection generation time change unit
160: stop detection unit
170: stop reflection generation time change section
180: stop reflection generation amount change unit

Claims (16)

A water level-time conversion unit for determining a total power generation time corresponding to a current water level value based on the water level-generation time curve, and dividing the determined total power generation time by the number of normal generators and outputting power generation time for each generator;
Power generation time calculation unit for determining the power generation time for the current power generation for each generator based on the power generation time for each generator,
Fault / stop detection unit for determining whether the fault / stop state for each generator based on the values of the trip signal and the stop signal,
Failure / stop reflecting generation possible time changing unit for changing the generation possible time for each generator based on the fault / stop status for each generator,
A stop detector for determining whether all generators are in a stopped state instead of a fault based on the values of the trip signal and the stop signal,
It includes a stop reflecting generation possible time changing unit for changing the generation possible time for each generator from the fault / stop reflecting generation possible time changing unit based on whether all generators are in a stopped state, not a failure,
The stop reflecting generation possible time changing unit, when all generators are in a stopped state instead of a failure, the generation possible time for each generator from the fault / stop reflecting generation possible time changing unit, the generation time for each generator from the water level-time converter. Power generation time calculating device for maintaining the power generation time for each generator from the fault / stop reflecting power generation time change unit when all generators are not in a stopped state.
The method of claim 1,
The fault / stop reflection generation possible time changing unit, when the generator is in a fault / stop state, changes the generation possible time of the generator to '0', and when the generator is not in the fault / stop state, the generation of the generator Power generation time calculation device, characterized in that to maintain the available time as it is.
delete delete delete The method of claim 1,
Fault / stop reflecting power generation change unit that changes the current generation amount by generator based on the fault / stop status of each generator,
Generating time generation apparatus further comprises a stop reflecting generation amount changing unit for changing the current generation amount for each generator from the fault / stop reflecting generation amount changing unit based on whether all generators are in a stopped state, not a failure.
The method of claim 6,
The fault / stop reflecting generation amount changing unit, when the generator is in a fault / stop state, changes the current generation amount of the generator to '0', and if the generator is not in the fault / stop state, the current generation amount of the generator as it is. Power generation time calculation device characterized in that for maintaining.
The method of claim 6,
The stop reflection generation amount change unit changes the current generation amount for each generator from the failure / stop reflection generation amount change unit to a reference generation amount when all generators are in a stopped state instead of a failure, and when the generators are not in a stopped state, the failure Power generation time calculation device, characterized in that to maintain the current generation amount for each generator from the / reflecting power generation change unit.
The water level-time conversion unit determines the total power generation time corresponding to the current water level value based on the water level-generation time curve, and outputs the power generation time for each generator by dividing the determined total power generation time by the number of normal generators;
Generating available time calculation unit, the process of determining the generation possible time for the current generation amount for each generator based on the generation time for each generator,
The fault / stop detection unit determines whether the fault / stop state is for each generator based on the values of the trip signal and the stop signal,
A process of changing the power generation time for each generator based on whether the power generation time for the failure / stop reflecting generation is changed based on the fault / stop status of each generator;
The stop detection unit, the process of determining whether all generators are in a stopped state, not a failure based on the values of the trip signal and the stop signal,
The stop reflecting generation possible time changing unit includes a step of changing the generation possible time for each generator from the fault / stop reflecting generation possible time changing unit based on whether all generators are in a stopped state instead of a failure,
The process of changing the generation possible time for each generator of the stop reflecting generation possible time change unit,
When all generators are in a stopped state instead of a fault, the generator-capable time from the fault / stop reflecting power generation time change unit is changed to the generator-generated time from the water level-time converting unit, and all generators are stopped. If not, the operation method of the power generation time calculation device comprising the step of maintaining the power generation time for each generator from the fault / stop reflecting power generation time change unit as it is.
10. The method of claim 9, wherein the power generation time change process for each generator of the fault / stop reflecting power generation time change unit includes:
If the generator is in a fault / stop state, change the power generation time of the generator to '0'; and if the generator is not in the failure / stop state, the process includes maintaining the power generation time of the generator as it is. An operating method of a power generation time calculation device characterized in that.
delete delete delete The method of claim 9,
The fault / stop reflecting power generation unit changes the current generation amount by generator based on the fault / stop status of each generator,
Stop generation generation amount change unit, generation time calculation device further comprises the step of changing the current generation amount for each generator from the failure / stop reflection generation amount change unit based on whether all generators are in a stopped state, not a failure How to operate.
15. The method of claim 14, wherein the current generation amount change process for each generator of the fault / stop reflecting generation amount change unit,
If the generator is in a fault / stop state, the current generation amount of the generator is changed to '0', and if the generator is not in a fault / stop state, the current generation amount of the generator is maintained as it is. Method of operation of the generation time calculation device to be.
15. The method of claim 14, wherein the current generation amount change process for each generator of the stationary reflection generation amount change unit,
If all generators are in a stopped state instead of a fault, the current generation amount for each generator from the fault / stop reflected generation amount change unit is changed to a reference generation amount, and when all generators are not in a stopped state, the fault / stop reflected generation amount change unit Operation method of the power generation time calculation apparatus comprising the step of maintaining the current amount of power generation by generator as it is.
KR1020120101548A 2012-09-13 2012-09-13 Apparatus for calculating power generating available time and method for operating thereof KR102042786B1 (en)

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CN110501981B (en) * 2019-07-11 2021-05-07 珠海优特智厨科技有限公司 Kitchen equipment control method, kitchen equipment control device, equipment and computer-readable storage medium

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