KR101350638B1 - System and method for monitoring power transmission in generator in real time - Google Patents

System and method for monitoring power transmission in generator in real time Download PDF

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Publication number
KR101350638B1
KR101350638B1 KR1020120137015A KR20120137015A KR101350638B1 KR 101350638 B1 KR101350638 B1 KR 101350638B1 KR 1020120137015 A KR1020120137015 A KR 1020120137015A KR 20120137015 A KR20120137015 A KR 20120137015A KR 101350638 B1 KR101350638 B1 KR 101350638B1
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South Korea
Prior art keywords
power value
bid
generator
cumulative average
average power
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KR1020120137015A
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Korean (ko)
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백승훈
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한국동서발전(주)
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • G01R21/133Arrangements for measuring electric power or power factor by using digital technique
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • G01R21/133Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1333Arrangements for measuring electric power or power factor by using digital technique adapted for special tariff measuring
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. by electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods
    • G01R22/10Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods using digital techniques

Abstract

The present invention is connected to the generator, the input unit for receiving the bid power value and measuring the power transmission power value of the generator in real time; The bidding power value and the power transmission power value are received from the input unit, and a cumulative average power value is calculated every predetermined period according to the power transmission power value accumulated for a predetermined time corresponding to the bid power value. A calculating unit calculating a deviation of the cumulative average power value; And an alarm unit connected to the operation unit, the alarm unit generating an alarm signal when a deviation between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values. It starts. The power transmission monitoring system and method of the generator as described above can reduce the unnecessary power up of the generator and prevent the adjustment of transaction revenue and implement the power generation output efficiency.

Description

Real-time transmission monitoring system and method of generator {SYSTEM AND METHOD FOR MONITORING POWER TRANSMISSION IN GENERATOR IN REAL TIME}

The present invention relates to a power transmission monitoring system and method of a generator, and more particularly, to a power transmission monitoring system and method of a generator to implement a stable power generation efficiency of the generator for power transactions.

Electricity trading is buying and selling electricity that responds to changing electricity demand every moment. Each generator makes a bid for a power transaction by reporting the available capacity over time. The generator is to be transmitted based on the available capacity, that is, the bidding power value, and the transmission should be made to correspond to the bidding power value. In practice, the transmitted power value is not kept constant. For this reason, a deviation may appear more than a predetermined value from the transmitted power value to the bid power value. At this time, when the transmitted power value is also the bid power value is large, the output of the unnecessary generator occurs. In particular, when the transmitted power value is smaller than the bid power value by a predetermined value or more, the transaction profit adjustment should be made. At this time, the transaction revenue adjustment is paid for the transmitted power value, not the bid power value, the revenue for the generator is reduced.

In practice, however, the value of the transmission power can be known only after one hour. For this reason, it is difficult to detect the deviation of the transmission power value relative to the bid power value while the power transmission is performed, and there is a difficulty in taking immediate action accordingly.

The present invention is to provide a power transmission monitoring system and method of the generator that can reduce the unnecessary output increase of the generator and prevent the adjustment of transaction revenue.

In addition, the present invention is to provide a power transmission monitoring system and method of the generator that can improve the output efficiency of the generator.

The present invention is connected to the generator, the input unit for receiving the bid power value and measuring the power transmission power value of the generator in real time; The bidding power value and the power transmission power value are received from the input unit, and a cumulative average power value is calculated every predetermined period according to the power transmission power value accumulated for a predetermined time corresponding to the bid power value. A calculating unit calculating a deviation of the cumulative average power value; And an alarm unit connected to the operation unit, the alarm unit generating an alarm signal when a deviation between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values. It starts.

In addition, the cumulative average power value discloses a power transmission monitoring system of a generator, characterized in that calculated according to the following formula.

Figure 112012099063778-pat00001

(here,

Figure 112012099063778-pat00002
Is the cumulative average power value,
Figure 112012099063778-pat00003
Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
Figure 112012099063778-pat00004
Is the transmission power value for the section.)

The power transmission monitoring system of the generator further includes a display unit connected to the input unit and the calculation unit and configured to display the bid power value, the cumulative average power value, and the difference between the bid power value and the cumulative average power value. Disclosed is a power transmission monitoring system for a generator.

In addition, the present invention comprises the steps of (a) the input unit receives the bid power value and measures the power transmission power value of the generator in real time; (b) a calculating unit calculating a cumulative average power value at regular intervals according to the transmission power value accumulated for a predetermined time corresponding to the bid power value and calculating a deviation between the bid power value and the cumulative average power value ; And (c) an alarm unit generating an alarm signal when a deviation between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values. do.

In addition, the power transmission monitoring method of the generator, characterized in that the cumulative average power value is calculated according to the following formula.

Figure 112012099063778-pat00005

(here,

Figure 112012099063778-pat00006
Is the cumulative average power value,
Figure 112012099063778-pat00007
Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
Figure 112012099063778-pat00008
Is the transmission power value for the section.)

The method further includes the step of: (d) the display unit displaying the bidding power value, the cumulative average power value, and the bidding power value and the deviation of the cumulative average power value. Initiate the monitoring method.

Power transmission monitoring system and method of the generator according to the present invention has the following effects.

(1) The power transmission monitoring system and method of a generator according to the present invention receives a bid power value and measures the power value in real time, and accumulates at regular intervals according to the power value accumulated for a predetermined time corresponding to the bid power value. Calculate the average power value. Then, the deviation between the cumulative average power and the bid power value is calculated. At this time, when the deviation is greater than a predetermined ratio of the bidding power value, an alarm signal is generated. In particular, when the cumulative average power value is smaller than the bid power value, it is necessary to adjust the transaction revenue. After the operator recognizes the alarm signal, the operator can properly adjust the output of the generator. Therefore, the power transmission monitoring system and method of the generator according to the present invention is to adjust the output of the generator based on the alarm signal according to the deviation of the cumulative average power and bidding power value to reduce the unnecessary output upwards of the generator and prevent adjustment of transaction revenue Has the effect that it can.

(2) The power transmission monitoring system and method of the generator according to the present invention not only generates the above alarm signal but also displays the bid power value, the cumulative average power value, and the deviation between the bid power value and the cumulative average power value. . This allows the operator to easily check the working state of the generator. Therefore, the power transmission monitoring system and method of the generator according to the present invention can adjust the output of the generator appropriately according to the confirmed state of the generator, and has the effect of improving the power generation output efficiency of the generator.

1 is a view showing a power transmission monitoring system of a generator according to a preferred embodiment of the present invention.
FIG. 2 is a diagram illustrating a screen of a display unit of the power transmission monitoring system of the generator illustrated in FIG. 1.
3 is a flowchart illustrating a power transmission monitoring method of a generator according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a diagram showing a power transmission monitoring system 100 of a generator according to a preferred embodiment of the present invention, Figure 2 is a screen of the display unit 104 of the power transmission monitoring system 100 of the generator shown in FIG. It is a figure. 1 and 2, the power transmission monitoring system 100 of the generator according to the present invention includes an input unit 101, a calculation unit 102, an alarm unit 103 and a display unit 104, the generator ( 10) is used to detect the power transmission state of the generator 10 according to the power transaction to prevent unnecessary output upwards or transaction profit adjustment.

The input unit 101 is connected to the generator 10. In the input unit 101, a bid power value according to a power transaction is input. Typically, since the bidding of the power transaction is made in units of 1 hour, the bid power value is preferably input at an hourly interval. In addition, the input unit 101 measures the power transmission power value by the generator 10 in real time. Here, the power transmission power value means an actual power value actually generated by the generator 10.

The calculating unit 102 is connected to the input unit 101. The calculation unit 102 receives the bid power value and the power transmission power value from the input unit 101. In particular, the calculating unit 102 calculates a cumulative average power value at regular intervals according to the power transmission power value accumulated during a predetermined time corresponding to the bid power value. Here, the predetermined time is a period in which the bidding of the power transaction is made, and is usually one hour. In addition, the predetermined period is a period for forming a section for the transmission time in order to calculate the cumulative average power value, for example, may be 1 second, 1 minute and the like. The cumulative average power value is calculated according to the following formula.

Figure 112012099063778-pat00009

here,

Figure 112012099063778-pat00010
Is the cumulative average power value,
Figure 112012099063778-pat00011
Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
Figure 112012099063778-pat00012
Is the transmission power value for the interval.

After the cumulative average power value is calculated according to the above formula, the calculation unit 102 calculates a deviation between the bid power value and the cumulative average power value. The deviation is the difference between the bid power value and the cumulative average power value, and is used to monitor the power generation output of the actual generator 10 with respect to the bid power value.

The alarm unit 103 is connected to the operation unit 102. The alarm unit 103 receives the deviation between the bid power value and the cumulative average power value. If the deviation is greater than a predetermined ratio of the bidding power value, the alarm unit 103 generates an alarm signal.

For example, the alarm unit 103 may be in the form of a display device or a speaker device. At this time, when the alarm unit 103 is a display device, the alarm signal is generated in the form of letters, numerals, or the like so that it can be confirmed through the operator's time. When the alarm unit 103 is a speaker device, the alarm signal can be generated so as to be audible through the auditory sense of the operator in the form of a voice or an alarm sound. However, the alarm unit 103 is not limited to the above-described type, and may be various devices for outputting an alarm signal so that an operator can check it. In addition, the cumulative average power value may be larger or smaller than the bid power value, wherein the alarm signal is preferably different accordingly.

On the other hand, a signal is generated when the deviation is greater than a predetermined ratio with respect to the bid power value in the calculation unit 102, the alarm unit 103 may receive a signal from the calculation unit 102 to generate an alarm signal.

In addition, when the alarm signal is generated and the cumulative average power value is larger than the bid power value, this means that the generator 10 transmits unnecessary power, that is, output is made up. In this case, the worker may recognize the power generation state through the alarm unit 103 and take measures accordingly. At this time, it is preferable that the operator reduces the output of the generator 10.

On the other hand, when the alarm signal is generated and the bid power value is greater than the cumulative average power value, this means that the generator 10 is transmitting power that does not reach the bid power value. If this condition persists, then trade revenue adjustments should be made. That is, the operator of the generator 10 receives a fee corresponding to the transmission power value that does not reach the bid power value, and thus suffers a decrease in profit. In this situation, the worker may recognize the power generation state through the alarm unit 103 and take measures accordingly to prevent this. The operator preferably increases the output of the generator 10. In addition, if the time is close to the application time of the new bid power value, the output of the generator 10 can be further increased.

In addition, the predetermined ratio is preferably considered whether or not to adjust the transaction revenue. In general, when the deviation between the bid power value and the cumulative average power value is greater than 2% of the bid power value, the transaction profit adjustment is applied, so that the predetermined ratio is preferably 2%. However, the predetermined ratio is not limited to this, and it is preferable that the ratio is applied to correspond to the regulation on the vertical adjustment of the transaction.

As described above, the alarm signal is generated according to the deviation between the bid power value and the cumulative average power value, so that the output of the generator 10 may be appropriately adjusted. As a result, the generator 10 may have a stable power generation output efficiency.

The display unit 104 is connected to the input unit 101 and the calculation unit 102 and displays a bid power value, a cumulative average power value, and a deviation between the bid power value and the cumulative average power value. The operator can easily check the operating state of the generator 10 through the display unit 104. When the alarm signal is generated, the output of the generator 10 may be adjusted more accurately based on the contents displayed on the display unit 104. In addition, even if the alarm signal is not generated by the alarm unit 103, the operator can adjust the output of the generator 10 as needed. As a result, the generator may maintain stable output and may have improved output efficiency. For example, the display unit 104 may be formed as shown in FIG. 2.

3 is a flowchart illustrating a power transmission monitoring method of a generator according to a preferred embodiment of the present invention. The transmission monitoring method of the generator according to the preferred embodiment of the present invention shown in FIG. 3 will be described using the transmission monitoring system 100 of the aforementioned generator.

First, an input unit 101 receives a bid power value and measures a transmission power value in real time (S101). In step S101 is input of data for the power transmission state of the generator.

Next, the calculation unit 102 calculates the cumulative average power value, and calculates the deviation between the bid power value and the cumulative average power value (S102). At this time, the cumulative power value is calculated at regular intervals according to the power transmission power value accumulated during a predetermined time to which the bid power value is applied, and is calculated according to the following formula.

Figure 112012099063778-pat00013

here,

Figure 112012099063778-pat00014
Is the cumulative average power value,
Figure 112012099063778-pat00015
Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
Figure 112012099063778-pat00016
Is the transmission power value for the interval.

In addition, the deviation between the bid power value and the cumulative average power value means the difference between them.

Next, a step S103 of causing the alarm unit 103 to generate an alarm signal is performed. Step S103 is performed when the deviation between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values. When the cumulative average power value is larger than the bid power value, the worker may recognize the power generation state through the alarm unit 103 and take action accordingly. At this time, it is preferable that the operator reduces the output of the generator 10. On the other hand, if the bid power value is greater than the cumulative average power value, if this condition persists, the transaction revenue adjustment should be made. The worker may recognize the power generation state through the alarm unit 103 and take measures accordingly. At this time, it is preferable that the operator increases the output of the generator 10. In addition, if the time is close to the application time of the new bid power value, the output of the generator 10 can be further increased.

In addition, it is preferable that the predetermined ratio considers whether to adjust the transaction profit. In general, when the deviation between the bid power value and the cumulative average power value is greater than 2% of the bid power value, the transaction profit adjustment is applied, so that the predetermined ratio is preferably 2%. However, the predetermined ratio is not limited to this, and it is preferable that the ratio is applied to correspond to the regulation on the vertical adjustment of the transaction.

Next, in step S104, the display unit 104 displays the bid power value, the cumulative average power value, and the deviation between the bid power value and the cumulative average power value. Step S104 provides the operating state of the generator 10 to the worker. When the alarm signal is generated, the operator can more accurately adjust the output of the generator 10 from the information displayed on the display. In addition, even if the alarm signal is not generated by the alarm unit 103, the operator can adjust the output of the generator 10 as needed. As a result, the generator may maintain stable output and may have improved output efficiency. However, step S104 is not necessarily required and may be omitted.

While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the present invention. In addition, the description in parentheses in the description of the claims is intended to prevent obscuration of the description, and the scope of the claims of the claims should be construed to include all the items in parentheses.

100: generator power transmission monitoring system
101; Input
102: the calculation unit
103: Alarm section
104:

Claims (6)

  1. An input unit connected to the generator and configured to receive a bid power value and measure a power transmission power value of the generator in real time;
    The bidding power value and the power transmission power value are received from the input unit, and a cumulative average power value is calculated every predetermined period according to the power transmission power value accumulated for a predetermined time corresponding to the bid power value. A calculating unit calculating a deviation of the cumulative average power value; And
    And an alarm unit coupled to the operation unit and generating an alarm signal when a difference between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values.
  2. The method of claim 1,
    The cumulative average power value is a power transmission monitoring system of a generator, characterized in that calculated according to the following formula.
    Figure 112012099063778-pat00017

    (here,
    Figure 112012099063778-pat00018
    Is the cumulative average power value,
    Figure 112012099063778-pat00019
    Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
    Figure 112012099063778-pat00020
    Is the transmission power value for the section.)
  3. According to claim 1, wherein the power transmission monitoring system of the generator,
    And a display unit connected to the input unit and the calculation unit and configured to display the bid power value, the cumulative average power value, and the difference between the bid power value and the cumulative average power value. .
  4. (a) an input unit receiving a bid power value and measuring a transmission power value of a generator in real time;
    (b) a calculating unit calculating a cumulative average power value at regular intervals according to the transmission power value accumulated for a predetermined time corresponding to the bid power value and calculating a deviation between the bid power value and the cumulative average power value ; And
    and (c) an alarm unit generating an alarm signal when a deviation between the bid power value and the cumulative average power value is greater than a predetermined ratio of the bid power values.
  5. 5. The method of claim 4,
    The cumulative average power value is calculated according to the following formula.
    Figure 112012099063778-pat00021

    (here,
    Figure 112012099063778-pat00022
    Is the cumulative average power value,
    Figure 112012099063778-pat00023
    Is the total number of sections for power transmission time at the time of calculating the cumulative average power value,
    Figure 112012099063778-pat00024
    Is the transmission power value for the section.)
  6. The method of claim 4, wherein the method is
    and (d) a display unit displaying the bid power value, the cumulative average power value, and the deviation between the bid power value and the cumulative average power value.
KR1020120137015A 2012-11-29 2012-11-29 System and method for monitoring power transmission in generator in real time KR101350638B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040083626A (en) * 2003-03-24 2004-10-06 한국남동발전 주식회사 Method and System for Automatically Verifying Traded Utility Power
KR20110039210A (en) * 2009-09-10 2011-04-15 가부시키가이샤 히다치 엔지니어링 서비스 Power storage device of power generation system and operation method thereof
KR20120086880A (en) * 2011-01-27 2012-08-06 주식회사 코어세스코리아 Power management terminal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040083626A (en) * 2003-03-24 2004-10-06 한국남동발전 주식회사 Method and System for Automatically Verifying Traded Utility Power
KR20110039210A (en) * 2009-09-10 2011-04-15 가부시키가이샤 히다치 엔지니어링 서비스 Power storage device of power generation system and operation method thereof
KR20120086880A (en) * 2011-01-27 2012-08-06 주식회사 코어세스코리아 Power management terminal

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