KR102502818B1 - Apparatus for optimizing power supply and demand and method thereof - Google Patents

Abstract

Disclosed is an apparatus and method for optimizing power supply and demand. An apparatus for optimizing power supply and demand according to the present invention includes a customer terminal unit that sets a price to be paid by a consumer according to power use, investigates a degree of dissatisfaction according to use outside of set hours, and determines an additional amount of power reduction; Based on the power data collected from the customer terminal and intermediary operation department based on the remote meter reading infrastructure, analyze the power reduction data according to the set DR rate, analyze the error in the amount of market participation, and establish a power generation operation plan in the DR market system operation department that determines DR incentives; and receives incentive and penalty information from the system operation department, collects and analyzes reduction data in the DR market, predicts the expected amount of reduction, conducts bidding in the DR market, and transmits a DR signal to the customer terminal to participate in the DR market and an intermediary operation unit that operates an additional electricity market between intermediary operators after analyzing the amount.

Description

Power supply and demand optimization device and method {APPARATUS FOR OPTIMIZING POWER SUPPLY AND DEMAND AND METHOD THEREOF}

The present invention relates to an apparatus and method for optimizing power supply and demand, and more particularly, predicts power consumption based on power data collected based on an advanced metering infrastructure (AMI) and operates after trading demand resources. The present invention relates to an apparatus and method for optimizing power supply and demand, which determines surplus demand resources due to additional achievement or non-fulfillment according to the result, and enables transactions between intermediaries through an additional electricity market.

In general, in order to meter the meter for water, flow, electricity, gas, etc., a meter reader visits each house, visually checks it, and then directly records it by hand, and creates a bill based on the meter reader's recorded figures It is carried out in the form of delivery.

However, there were problems such as high manpower costs, damage to residents through visits, crimes pretending to be meter readers, difficulties in meter reading, collusive relationships, and increased charges due to misread meter reading. Remote meter reading was introduced because of the problems of manpower and cost.

The AMI system (Advanced Metering Infrastructure System) remotely reads the usage of various meters such as electricity, gas, water, hot water, and heat installed in consumers consuming energy, while automatically collecting, analyzing, and It refers to a two-way communication infrastructure that processes and then provides it to consumers again.

This AMI system is a next-generation version that adds a two-way communication function that provides energy consumption information to consumers to the AMR system (Advanced Meter Reading System) for simple collection of energy consumption information from existing consumers from utility companies. As an energy metering infrastructure, it is being widely introduced in the power field thanks to the activation of smart grid adoption worldwide.

On the other hand, electric power refers to electric energy supplied to an electric device for a unit time or electric energy converted into another form of energy for a unit time, and the supply of electric power is adjusted through an analysis of such power demand.

Currently, Korea Electric Power Corporation (KEPCO), an electricity sales company, purchases electricity at the electricity market price announced the previous day in the electricity market and supplies it to electricity consumers. The electricity market price is determined by the System Marginal Pricing (SMP), which is the highest price among the variable costs of a generator that meets the predicted demand for each time period, which is a very important factor in determining the electricity purchase price of KEPCO. works as

Meanwhile, in the power system, a balance between supply and demand is required, which is important for rational use of limited energy resources. For this purpose, the need for demand management is emerging, and research on demand response (DR), an advanced form of demand management, is increasing.

The background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2019-0106084 (2019.09.18. Publication, demand management business operator system equipped with OpenADR module for demand resource transaction).

Recently, the diversification of power consumption sources in terms of consumers, such as renewable energy, energy storage systems, and electric vehicles, enables power management in more directions.

The overall automation of the collection and processing of such power data has made it possible to operate a new type of power market that did not exist before, and various methods for lowering the power rate of individual power consumers have been proposed.

Demand response markets operated in Korea include price-based DR markets, incentive-based DR markets, and ancillary services.

First, the price-based DR market induces electricity consumers to voluntarily reduce electricity consumption by setting differential electricity rates by time or season in consideration of the total electricity supply and demand. pricing), and peak rates.

Second, the incentive-based DR market is a system that contracts with system operators (e.g., KEPCO, KPX) to reduce electricity consumption based on the electricity demand of consumers predicted in advance. In case of achievement, profit in the form of incentive is provided, and if not achieved, penalty is imposed accordingly. There is peak-rebate pricing.

Third, the ancillary service is a power market operated to solve problems such as power frequency, supply and demand in the system through the control of power consumption by consumers.

However, as a result of operating the actual demand resource market (DR market), there are cases where the peak reduction contracted in advance cannot be achieved, which induces additional demand reduction from the system operator's point of view or reduces electricity supply from expensive power generation facilities. It has a problem of inducing, which not only induces the occurrence of expenditure different from the conventional expectation, but also induces a decrease in the reliability of each demand resource market participant, making it difficult to manage resources smoothly.

In addition, there is a problem in that it is difficult to accurately predict power usage due to loss of collected power usage data, making it difficult to predict 100% of consumer's power usage characteristics.

The present invention has been made to improve the above problems, and an object of the present invention according to an aspect is to predict power usage based on power data collected based on an advanced metering infrastructure (AMI) to determine demand To provide an apparatus and method for optimizing power supply and demand, which determines surplus demand resources due to additional achievement or non-fulfillment according to the result of operation after trading resources, and enables transactions between intermediaries through additional electricity markets.

An apparatus for optimizing power supply and demand according to an aspect of the present invention includes a customer terminal unit configured to set a charge to be paid by a consumer according to power usage, investigate a level of dissatisfaction due to usage outside of set hours, and determine an additional amount of power reduction; Based on the power data collected from the customer terminal and intermediary operation department based on the remote meter reading infrastructure, analyze the power reduction data according to the set DR rate, analyze the error in the amount of market participation, and establish a power generation operation plan in the DR market system operation department that determines DR incentives; and receives incentive and penalty information from the system operation department, collects and analyzes reduction data in the DR market, predicts the expected amount of reduction, conducts bidding in the DR market, and transmits a DR signal to the customer terminal to participate in the DR market and an intermediary operation unit that operates an additional electricity market between intermediary operators after analyzing the amount.

In the present invention, the system operation unit, a power data analysis unit for analyzing the collected power data and power reduction data according to the set DR rate; DR total analysis unit for analyzing the error between the expected participation amount and the actual participation amount in the actual DR market based on the power reduction data analyzed by the power data analysis unit; A power generation operation forecasting unit that establishes a demand reduction amount and a necessary power generation operation plan in the DR market; and a DR incentive determination unit that determines incentives to be given to consumers participating in the DR market.

In the present invention, the generation operation prediction unit is characterized in establishing a demand reduction amount and a necessary generation operation plan through the DR market based on the operation price of the power plant according to the system limit price.

In the present invention, the mediation operation unit includes a reduction data collection and analysis unit that collects and analyzes reduction data from customer terminals participating in the DR market; a power reduction estimation unit for calculating an expected demand reduction based on the reduction data collected by the reduction data collection analysis unit; a participation calculation unit that analyzes the participation amount of customer terminal units participating in the DR market and calculates an additional reduction amount and an unachieved amount; and an additional market operating unit that trades rights for additional reductions between intermediate operating units.

In the present invention, the power reduction amount prediction unit is characterized in that it proceeds with bidding in the DR market based on the calculated demand reduction amount.

In the present invention, the customer terminal unit includes a rate setting unit for setting a rate to be paid by the consumer according to power usage; a dissatisfaction setting unit that investigates a level of dissatisfaction due to use outside of the set time; and a reduction amount setting unit configured to set at least one of a power consumption reduction amount in a set time zone, an error compared to an expected reduction amount, and an additional power reduction possible amount.

In the present invention, the rate setting unit is characterized in that it sets a rate including at least one of a usage time price, a cumulative maximum price, and a progressive tax.

In the present invention, the reduction amount setting unit is characterized in that it transfers the set reduction amount to the mediation operation unit and the system operation unit.

A method for optimizing power supply and demand according to another aspect of the present invention includes analyzing power reduction data according to a set DR rate based on power data collected from a customer terminal based on a remote meter reading infrastructure by a system operator; Establishing a generator operating fee and expected demand reduction at the set time by the system operation unit; Determining incentives according to the amount of customer demand reduction by the system operation unit; Analyzing demand reduction fulfillment and non-fulfillment data for the intermediary operating unit by the system operation unit; determining, by the system operation unit, the amount of demand reduction expected by the brokerage operation unit according to the incentives and penalties; and transacting, by the brokerage operation unit, rights for surplus demand resources according to the additional demand reduction amount and unfulfilled amount through the additional market.

In the step of establishing the expected demand reduction amount in the present invention, the system operation unit establishes the expected demand reduction amount and the necessary power generation operation plan through the DR market based on the operating price of the power plant according to the system limit price.

In the present invention, the intermediary operation unit is characterized in that it further comprises the step of transmitting a demand power reduction signal to the customer terminal unit according to the determined expected demand reduction amount.

The present invention is characterized in that the system operation unit further comprises the step of requesting power supply to the power plant for the shortfall based on the additional transaction in the intermediary operation unit.

An apparatus and method for optimizing power supply and demand according to an aspect of the present invention predicts power usage based on power data collected based on advanced metering infrastructure (AMI), trades demand resources, and then operates the result. By determining the surplus demand resources due to additional achievement or non-fulfillment according to the additional power market, it is possible to stabilize the system by preventing power outages and expansion of problems in advance through the control of demand power, In other words, not only can the burden of penalties for brokerages be alleviated, but additional profits can be guaranteed.

1 is a block diagram showing an apparatus for optimizing power supply and demand according to an embodiment of the present invention.
2 is a block diagram showing a specific configuration of a customer terminal of an apparatus for optimizing power supply and demand according to an embodiment of the present invention.
3 is a block diagram showing a specific configuration of a system operation unit of an apparatus for optimizing power supply and demand according to an embodiment of the present invention.
4 is a block diagram showing the mediation operating unit of the power supply and demand optimization device according to an embodiment of the present invention in detail.
5 is a flowchart illustrating a method for optimizing power supply and demand according to an embodiment of the present invention.

Hereinafter, an apparatus and method for optimizing power supply and demand according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

1 is a block configuration diagram showing an apparatus for optimizing power supply and demand according to an embodiment of the present invention, and FIG. 2 is a block configuration diagram showing in detail a customer terminal unit of an apparatus for optimizing power supply and demand according to an embodiment of the present invention. 3 is a block configuration diagram specifically showing the system operation unit of the power supply and demand optimization apparatus according to an embodiment of the present invention, and FIG. It is also

As shown in FIG. 1 , the apparatus for optimizing power supply and demand according to an embodiment of the present invention may include a system operation unit 10 , a mediation operation unit 20 and a customer terminal unit 30 .

The customer terminal unit 30 may set a charge to be paid by the consumer according to power usage, investigate a level of dissatisfaction due to use outside the set time, and determine an additional amount of power reduction.

As shown in FIG. 2 , the customer terminal unit 30 may include a rate setting unit 32 , a dissatisfaction setting unit 34 and a reduction amount setting unit 46 .

The rate setting unit 32 may set a rate including at least one of a usage time price, a cumulative maximum price, and a progressive tax as a price to be paid by the consumer according to power usage.

The dissatisfaction setting unit 34 determines the amount of reduction in power consumption of customers in real time by examining the level of dissatisfaction according to use outside of set hours for each demand resource.

The reduction amount setting unit 36 sets one or more of the amount of power used in the set time zone, the error compared to the expected reduction amount, and the additional power reduction possible amount, and transmits them to the mediation operation unit 20 and the system operation unit 10.

The system operation unit 10 analyzes the power reduction data according to the set DR rate based on the power data collected from the customer terminal unit 30 and the brokerage operation unit 20 based on the remote meter reading infrastructure to reduce the error on the amount of market participation. DR incentives can be determined by analyzing and establishing a power generation operation plan in the DR market.

Here, the system operation unit 10 may include a power data analysis unit 12, a DR total amount analysis unit 14, a power generation operation prediction unit 16, and a DR incentive determination unit 18, as shown in FIG. there is.

The power data analysis unit 12 may analyze the collected power data and power reduction data according to the set DR rate.

Here, the power data analysis unit 12 may monitor the number of fulfillment or non-fulfillment of demand resource contracts of each brokerage service provider according to incentives and penalties designated based on the collected power data.

The DR total amount analysis unit 14 may analyze a difference between the expected participation amount and the actual participation amount in the actual DR market based on the power reduction data analyzed by the power data analysis unit 12 .

The power generation operation prediction unit 16 may establish a demand reduction amount and a necessary power generation operation plan in the DR market.

Here, the generation operation prediction unit 16 may establish a demand reduction amount and a necessary generation operation plan through the DR market based on the operation price of the power plant according to the system marginal price (SMP).

The DR incentive determination unit 18 may determine incentives to be given to consumers participating in the DR market.

The mediation operation unit 20 receives incentive and penalty information from the system operation unit 10, collects and analyzes reduction data in the DR market, predicts an expected reduction amount, proceeds with bidding in the DR market, and conducts bidding in the DR market. ) to analyze the amount of participation in the DR market by transmitting a DR signal, and then operate an additional power market between intermediary operators.

Here, the mediation operation unit 20 may include a reduction data collection analysis unit 22, a power reduction amount prediction unit 24, a participation calculation unit 26, and an additional market operation unit 28, as shown in FIG. can

The reduction data collection analysis unit 22 may collect and analyze reduction data from the customer terminal unit 30 participating in the DR market.

The power reduction amount prediction unit 24 may calculate an expected demand reduction amount based on the reduction data collected by the reduction data collection analysis unit 22 .

Also, the power reduction amount prediction unit 24 may proceed with bidding in the DR market based on the calculated demand reduction amount.

The participation calculation unit 26 may calculate an additional reduction amount and an unattained amount by analyzing the participation amount of the customer terminal unit 30 participating in the DR market.

The additional market operation unit 28 trades surplus demand resources due to additional achievement or non-fulfillment by trading rights for additional reductions between the brokerage operation units 20, thereby alleviating the penalty burden and guaranteeing additional profits .

As described above, according to the power supply and demand optimization apparatus according to an embodiment of the present invention, after predicting power usage based on power data collected based on advanced metering infrastructure (AMI) and trading demand resources, Depending on the result of operation, surplus demand resources due to additional achievement or non-fulfillment are determined so that transactions between intermediaries can be carried out through the additional power market. It can stabilize, alleviate the penalty burden of brokerages, and guarantee additional profits.

5 is a flowchart illustrating a method for optimizing power supply and demand according to an embodiment of the present invention.

As shown in FIG. 5 , in the method for optimizing power supply and demand according to an embodiment of the present invention, first, the system operation unit 10 sets DR based on power data collected from the customer terminal unit 30 based on the remote meter reading infrastructure. Power reduction data according to the charge is analyzed (S10).

After analyzing the power reduction data in step S10, the system operation unit 10 establishes a generator operating fee and an expected demand reduction amount at the set time (S20).

Here, the system operation unit 10 may establish a demand reduction amount and a necessary power generation operation plan through the DR market based on the operating price of the power plant according to the system marginal price (SMP).

After establishing the generator operating fee and the expected demand reduction in step S20, the system operation unit 10 determines an incentive according to the customer's demand reduction (S30).

After determining the incentive in step S30, the system operation unit 10 analyzes the demand reduction fulfillment and non-fulfillment data for the mediation operation unit 20 (S40).

After analyzing demand reduction fulfillment and non-fulfillment data for each brokerage operating unit 20 in step S40, the system operating unit 10 determines the expected demand reduction amount of the brokerage operating unit 20 according to incentives and penalties (S50).

When the estimated demand reduction amount of the mediation operation unit 20 is determined in step S50, the mediation operation unit 20 transmits a demand power reduction signal to the customer terminal unit 30 according to the determined expected demand reduction amount (S60).

In step S60, after transmitting and operating the power demand reduction signal to the customer terminal unit 30, the brokerage operation unit 20 determines the surplus demand resources according to the additional demand reduction amount and the unattained amount, and trades the right through the additional market ( S70).

In this way, depending on the result of operating the DR market, surplus demand resources due to additional achievement or non-fulfillment are determined, and transactions between brokerages can be carried out through the additional power market, thereby preventing power outages and problems in advance through control of demand power. It is possible to stabilize the system by preventing it, and to alleviate the penalty burden of the brokerage business, as well as to guarantee additional profits.

In step S70, if a shortage occurs after trading rights for surplus demand resources between the brokerage operation units 20 through the additional market, the system operation unit 10 requests power supply to the power plant to stabilize the demand power in the system (S80).

As described above, according to the method for optimizing power supply and demand according to an embodiment of the present invention, after predicting power usage based on power data collected based on advanced metering infrastructure (AMI) and trading demand resources, Depending on the result of operation, surplus demand resources due to additional achievement or non-fulfillment are determined so that transactions between intermediaries can be carried out through the additional power market. It can stabilize, alleviate the penalty burden of brokerages, and guarantee additional profits.

Implementations described herein may be embodied in, for example, a method or process, an apparatus, a software program, a data stream, or a signal. Even if discussed only in the context of a single form of implementation (eg, discussed only as a method), the implementation of features discussed may also be implemented in other forms (eg, an apparatus or program). The device may be implemented in suitable hardware, software and firmware. The method may be implemented in an apparatus such as a processor, which is generally referred to as a processing device including, for example, a computer, microprocessor, integrated circuit, programmable logic device, or the like. Processors also include communication devices such as computers, cell phones, personal digital assistants ("PDAs") and other devices that facilitate communication of information between end-users.

The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: system operation unit 12: power data analysis unit
14: DR total amount analysis unit 16: power generation operation prediction unit
18: DR incentive decision unit 20: brokerage operation unit
22: reduction data collection analysis unit 24: power reduction estimation unit
26: participation calculation unit 28: additional market operation unit
30: customer terminal unit 32: rate setting unit
34: dissatisfaction setting unit 36: reduction amount setting unit

Claims (12)

a customer terminal unit that sets a fee to be paid by consumers according to power use, investigates dissatisfaction according to use outside set hours, and determines an additional amount of power reduction;
Based on the remote meter reading infrastructure, based on the power data collected from the customer terminal unit and the brokerage operation unit, the power reduction data according to the set DR rate is analyzed to analyze the error in the amount of market participation, and the power generation operation plan in the DR market is established. System operation department that establishes and determines DR incentives; and
Receives incentive and penalty information from the system operation unit, collects and analyzes reduction data in the DR market, predicts the expected amount of reduction, proceeds with bidding in the DR market, and transmits a DR signal to the customer terminal unit to After analyzing the amount of participation, an intermediary operation unit that operates an additional power market between intermediary operators;
The system operation department,
a power data analyzer configured to analyze the collected power data and the power reduction data according to the set DR rate;
a DR total amount analysis unit that analyzes an error between an expected participation amount and an actual participation amount in an actual DR market based on the power reduction data analyzed by the power data analysis unit;
a power generation operation prediction unit that establishes a demand reduction amount and a necessary power generation operation plan in the DR market; and
A DR incentive determination unit configured to determine incentives to be given to consumers participating in the DR market;
The generation operation prediction unit establishes a demand reduction amount and a necessary generation operation plan through the DR market based on the operation price of the power plant according to the system limit price,
The mediation operation department,
a reduction data collection and analysis unit that collects and analyzes reduction data from the customer terminal unit participating in the DR market;
a power reduction estimation unit for calculating an expected demand reduction based on the reduction data collected by the reduction data collection and analysis unit;
a participation calculation unit for calculating an additional reduction amount and an unattained amount by analyzing the participation amount of the customer terminal unit participating in the DR market; and
An additional market operation unit that trades rights for additional reductions between the brokerage operation units to alleviate the burden of penalty by trading surplus demand power due to additional achievement or non-fulfillment and to ensure additional profits;
The electric power supply and demand optimization device, characterized in that the electric power reduction amount prediction unit proceeds with a bidding in the DR market based on the calculated demand reduction amount.
delete delete delete delete The method of claim 1, wherein the customer terminal unit,
a rate setting unit that sets a rate to be paid by consumers according to power usage;
a dissatisfaction setting unit that investigates a level of dissatisfaction due to use outside of the set time; and
An electric power supply and demand optimization apparatus comprising: a reduction amount setting unit configured to set at least one of a power consumption reduction amount in a set time period, an error compared to an expected reduction amount, and an additional power reduction possible amount.
The apparatus for optimizing power supply and demand according to claim 6, wherein the rate setting unit sets a rate including at least one of a usage time price, a cumulative maximum price, and a progressive tax.
The apparatus for optimizing power supply and demand according to claim 6, wherein the reduction amount setting unit transmits the set reduction amount to the mediation operation unit and the system operation unit.
Analyzing power reduction data according to a set DR rate based on power data collected from a customer terminal based on a remote meter reading infrastructure by a system operator;
Establishing, by the system operation unit, a generator operating fee and an expected demand reduction amount at a set time;
determining, by the system operation unit, an incentive according to the customer's demand reduction;
Analyzing demand reduction fulfillment and non-fulfillment data for the mediation operation unit by the system operation unit;
determining, by the system operation unit, an expected demand reduction amount of the mediation operation unit according to incentives and penalties; and
Trading the right for the additional demand reduction amount and the unfulfilled amount through an additional market so that the brokerage operation unit trades surplus demand power due to additional achievement or non-fulfillment to mitigate the penalty burden and guarantee additional revenue; Including,
transmitting a demand power reduction signal to the customer terminal unit according to the estimated demand reduction amount determined by the mediation operation unit; and
Further comprising: requesting, by the system operation unit, power supply to the power plant for the shortfall based on the additional transaction in the intermediary operation unit;
In the step of establishing the expected demand reduction, the system operation unit establishes the expected demand reduction and the necessary power generation operation plan through the DR market based on the operating price of the power plant according to the system limit price. optimization method.
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