KR20190065780A - Method for calculating profit of single photovoltaics system and complex photovoltaics system and apparatus thereof - Google Patents

Abstract

The present invention relates to an apparatus for calculating profits of a single solar system and a complex solar system which comprises: a single solar system power generation pattern calculating unit for predicting a power generation pattern of a single solar system for each time zone; a complex solar system power generation pattern calculating unit for predicting a power generation pattern of a complex solar system for each time zone; a single solar system profit calculating unit for calculating profits of the single solar system using power generation pattern data, obtained from the single solar system power generation pattern calculating unit, and SMP price data, REC price data, and predicted incentive data obtained from a database; and a complex solar system profit calculating unit for calculating profits of the complex solar system using output pattern data obtained from the complex solar system power generation pattern calculating unit, and the SMP price data, the REC price data, and the predicted incentive data obtained from the database.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic system and a photovoltaic system,

The present invention relates to a method for calculating profit of a single solar photovoltaic system and a combined photovoltaic system. More particularly, the present invention relates to a method of calculating a profit of a single photovoltaic system and a combined photovoltaic system, considering the output pattern, SMP price, REC price, Of the total revenue.

Renewable Portfolio Standard (RPS) is a system that mandates that a portion of the electricity supplied by power generation companies (mandatory persons) be supplied using renewable energy in order to promote the use of renewable energy . Since 2001, the government phased out the feed-in tariff (FIT), which was differentially supported by new and renewable energy sources, and introduced the RPS system in 2012 to expand the supply of renewable energy.

Recently, the government is raising the ratio of RPS obligation to increase the level of R & D at the level of developed countries. In particular, the government is planning to cultivate solar power and wind power as a new renewable energy source in the future. Most of the countries that implement this RPS system are obliged to supply electric power sales companies. However, since Korea Electric Power Corporation is the only sales company in Korea, it is difficult to expect the effect of competition, so it is supplied to power generation companies with 500MW or more generation facilities It imposes an obligation.

The Renewable Energy Certificate (REC), which is one of the most important means of fulfilling the obligation to supply, is a document certifying that power is generated from a renewable energy facility, which includes renewable energy suppliers, The supply amount, supply period, and expiration date of each type of new and renewable energy can be recorded, and it can be traded in the trading market established by the supply certification authority. If the obligatory person submits the supply certificate to the government, the supply certificate is discarded.

The government gives differentiated weighting of new and renewable energy in order to induce competitiveness and equal development between new and renewable energy sources in consideration of the ripple effects of technological economics, industry, environment and policy by each country. For example, in the case of photovoltaic energy, the government gives a weight of 0.7 to 5 to the supply certificate depending on the installation type, and in the case of other new and renewable energy, the weight of 0.25 to 5 is given to the supply certificate .

Meanwhile, as shown in FIG. 1, new and renewable power generation companies that intend to supply renewable energy to a power exchange or KEPCO should go through a procedure of participating in the RPS system and confirming facilities to which the RPS supply certificate is to be issued. As shown in FIG. 2, the revenue (or revenue) of the renewable power generation companies that have completed these procedures is calculated by multiplying the system marginal price (SMP) obtained by selling the produced electric power to the electric power market, (REC) prices obtained from sales. Here, the SMP is determined through the allocation of the generation amount on the day that satisfies the constraint conditions given in the pricing development plan performed before the power supply and minimizes the total generation cost. RECs are issued at a predetermined weighting level to preserve the cost of new and renewable generation facilities.

Until now, the power market price (SMP) and the supply certificate (REC) price provided by the Korea Power Exchange (KPX) have been compensated for the power generation facilities of the new and renewable power generation companies through the first need (Must-Run). Here, first of all, the power distribution (Must-Run) is a method of allocating power generation priority in pricing development plan regardless of cost.

However, in the existing compensation system, the thermal power generation in the electric power system is controlled by the control of the output fluctuation and the output uncertainty, which are the characteristics of the new and renewable generation facilities. In the future where the spread of the renewable power generation facilities is large, It is expected to grow gradually. Therefore, it is necessary to develop a business model using intermediary companies to mitigate the output volatility and output uncertainty of new and renewable generation facilities. In addition, it is necessary to recognize the value of the output predictability of the renewable generation facilities and to prepare a plan for compensating them.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a method and apparatus for predicting output patterns of a single solar photovoltaic system and a composite solar photovoltaic system using past generation time information and meteorological information.

Another object of the present invention is to provide a method and apparatus for estimating the profit of a single photovoltaic system and a combined photovoltaic system by using a time-based output pattern, an SMP price, a REC price, and a prediction incentive.

Another object is to provide a method and apparatus for estimating the revenues of single photovoltaic systems and multiple photovoltaic systems by energy storage (ESS) capacity and / or REC level.

According to an aspect of the present invention, there is provided a solar photovoltaic power generation system comprising: a single photovoltaic system generation pattern calculation unit for predicting a power generation pattern of a single photovoltaic system by time zone; A complex photovoltaic system output pattern calculating unit for predicting an output pattern of the photovoltaic system by time zone; A single photovoltaic system profit calculation unit for calculating a profit of the single photovoltaic system by using the power generation pattern data acquired from the single photovoltaic power generation pattern calculation unit and the SMP price data, the REC price data, and the prediction incentive data acquired from the database; And a complex photovoltaic system profit calculator for calculating the profit of the complex photovoltaic system using the output pattern data acquired from the complex photovoltaic system output pattern calculation unit, the SMP price data acquired from the database, the REC pricing data and the prediction incentive data, To provide a solar system revenue accounting device.

More preferably, the database includes at least one of a technical DB, a power generation DB, a weather database, an SMP DB, a REC DB, and a prediction incentive DB. The forecasting incentive DB stores forecasting incentive data for each time period provided to the intermediary company as a contribution to the output stability of the renewable power generation facility.

More preferably, the single solar-system-generation-pattern calculating unit calculates the generation pattern of each solar-system by time zone using the past generation time-specific power generation amount information received from the power generation amount DB and the weather information received from the weather database . (T) =? PV (t) + PVV (t) = PVG (d, t) = PVG (T) *? (T) of the solar photovoltaic system to calculate the power generation pattern for each time zone.

More preferably, the composite solar power system output pattern calculating unit calculates the output pattern of the composite solar photovoltaic system using the power generation pattern data received from the single solar photovoltaic power generation pattern calculating unit and the ESS data received from the technical DB . The output pattern of the combined solar photovoltaic system is characterized by including a power generation pattern of a solar power plant and a discharge pattern of an energy storage device (ESS).

More preferably, the single photovoltaic system profit calculation unit calculates the SMP profit of the single photovoltaic system using the power generation pattern matrix of the single photovoltaic system and the SMP matrix, and calculates the SMP profit of the single photovoltaic system based on the power generation pattern matrix and the REC price Calculating a REC profit of the single solar photovoltaic system using the matrix and calculating a predictive incentive profit of the single photovoltaic system using the power generation pattern matrix and the prediction incentive matrix, And estimates the total revenue of the single photovoltaic system by summing the forecasted incentive revenue.

More preferably, the combined solar system profit operating unit calculates the SMP profit of the complex solar system by using the output pattern matrix and the SMP matrix of the complex solar system, and the output pattern matrix and the REC price Calculating a REC profit of the hybrid solar photovoltaic system using the matrix, and calculating a prediction incentive profit of the hybrid photovoltaic system using the output pattern matrix and the prediction incentive matrix. In addition, the combined solar system profit operating unit calculates the total profit of the combined solar photovoltaic system by summing the SMP profit, the REC profit, and the predicted incentive profit of the combined solar power system.

More preferably, the combined solar power system profit calculation unit calculates the profit of the combined solar power system by ESS capacity. Further, the combined solar power system profit calculation unit may calculate the revenue of the combined solar power system by the REC level.

More preferably, the solar system profit estimation apparatus further includes an output unit for displaying a revenue calculation result of the single solar light system and a profit calculation result of the hybrid solar light system. And the output unit displays a result of comparing the profit of the single solar optical system with the profit of the combined solar optical system.

According to another aspect of the present invention, there is provided a method of estimating a power generation pattern of a solar photovoltaic system, Estimating an output pattern of the composite solar cell system by time zone; Calculating revenue of the solar photovoltaic system using data on the power generation pattern of the single solar photovoltaic system, SMP price data, REC price data, and prediction incentive data acquired from the database; And calculating revenue of the combined solar photovoltaic system using data on an output pattern of the combined photovoltaic system and SMP price data, REC price data, and prediction incentive data obtained from the database, .

A method of calculating profit of a solar photovoltaic system according to embodiments of the present invention and effects of the apparatus will be described as follows.

According to at least one of the embodiments of the present invention, the output pattern and the profit of the single photovoltaic system and the combined photovoltaic system are calculated and provided to the intermediary operator or the power policy maker, It is possible to judge the level of cost payment and the appropriate REC level to obtain the output stability of regenerative power generation facilities, and it is advantageous that intermediary companies can decide whether to enter the power market through profit analysis.

According to at least one of the embodiments of the present invention, the output pattern of the single solar photovoltaic system and the combined photovoltaic system is calculated using past generation time amount information and meteorological information, so that a separate seasonal variable or monthly variable is not considered And it is possible to predict the generation amount by time.

However, the method of calculating the profit of the photovoltaic system according to the embodiments of the present invention and the effects that can be achieved by the apparatus are not limited to those mentioned above, and other effects not mentioned can be understood from the following description, It will be understood by those of ordinary skill in the art to which the present invention pertains.

FIG. 1 is a diagram showing a procedure for participating in the RPS system and a procedure for confirming the facility to which the RPS supply certificate is issued; FIG.
2 is a diagram showing an import structure of a renewable power generation company;
3 is a diagram illustrating an intermediary business model according to an embodiment of the present invention;
FIGS. 4A and 4B are diagrams for explaining a photovoltaic system profit estimation apparatus according to an embodiment of the present invention; FIGS.
5 is a diagram illustrating an operation of a single solar photovoltaic system generation pattern calculation unit according to an embodiment of the present invention;
6 is a view for explaining the operation of the complex photovoltaic system output pattern calculating unit according to an embodiment of the present invention;
FIG. 7 is a view for explaining the operation of a single photovoltaic system profit operating unit according to an embodiment of the present invention; FIG.
8 is a view for explaining the operation of the combined photovoltaic system profit operating unit according to an embodiment of the present invention;
FIG. 9 is a flowchart illustrating a method of calculating a solar system profit according to an embodiment of the present invention; FIG.
FIG. 10 is a diagram showing revenue of a single photovoltaic system and a combined photovoltaic system according to ESS capacity and RCE level; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. That is, the term 'part' used in the present invention means a hardware component such as software, FPGA or ASIC, and 'part' performs certain roles. However, 'minus' is not limited to software or hardware. The " part " may be configured to be in an addressable storage medium and configured to play back one or more processors. Thus, by way of example, and by no means, the terms " component " or " component " means any combination of components, such as software components, object- oriented software components, class components and task components, Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. The functions provided in the components and parts may be combined into a smaller number of components and parts or further separated into additional components and parts.

In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The present invention proposes a method of predicting an output pattern of a single solar photovoltaic system and a combined photovoltaic system using past generation time and generation information and meteorological information. In addition, the present invention proposes a method of calculating the profit of a single solar photovoltaic system and a combined photovoltaic system using an output pattern by time zone, an SMP price, a REC price, and a prediction incentive. In addition, the present invention proposes a method of calculating the revenue of a single solar photovoltaic system and a combined photovoltaic system according to ESS (Energy Storage System) capacity and / or REC (Renewable Energy Certificate) level. Hereinafter, a single photovoltaic system refers to a photovoltaic system that includes only one or more photovoltaic power plants, and a composite photovoltaic system refers to a photovoltaic system that includes one or more photovoltaic power plants and an energy storage device.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings.

3 is a diagram illustrating an intermediary business model according to an embodiment of the present invention.

Referring to FIG. 3, the brokerage business model according to the present invention is a system in which brokerage firms recruit new and renewable power generation companies having small-scale distributed resources and bid on a power exchange with one solar optical system (or one renewable generation facility) It is a business model that provides a platform. Here, renewable power generation companies include power generation companies that own only solar power plants or power generation companies that own solar power plants and energy storage systems (ESS).

Intermediary companies can be classified into two types, one is a broker for a single photovoltaic system, and another is a broker for a hybrid photovoltaic system. Companies that broker a single photovoltaic system can mitigate output volatility and output uncertainty through solar PV powerhouse operations. In addition, a company that mediates multiple photovoltaic systems can mitigate output volatility and output uncertainty of new and renewable power generation facilities by using energy storage devices of new and renewable power generation companies or by constructing separate energy storage devices (ESS). In such a case, the KPX may provide incentives to the intermediaries to contribute to the output stability of the renewable generation facilities.

By introducing the brokerage business model into the electric power market, it is possible to generate new revenue from the brokerage business and secure stable income from the small-scale renewable power generation business. From the government viewpoint, You will receive.

In order to activate the electricity trading using the broker-dealer business model, it is necessary to analyze the profit of the brokers of the independent solar photovoltaic system and those of the brokers of the hybrid photovoltaic system separately. In addition, it is necessary to quantitatively calculate costs not only from the perspective of the intermediary, but also from the perspective of the state.

4A and 4B are diagrams for explaining an apparatus for calculating a profit of a solar system according to an embodiment of the present invention.

4A and 4B, an apparatus 100 for calculating the profit of a solar light system according to the present invention includes a database 110, an output pattern calculating unit 120, a profit calculating unit 130, and an output unit 140 . The components shown in Figs. 4A and 4B are not essential for implementing a solar system profit estimation apparatus, and therefore, the solar system profit estimation apparatus described in this specification can have more or less components Elements.

The database 110 may include a technical DB 111, a power generation amount DB 112, a weather DB 113, an SMP DB 114, a REC DB 115, a prediction incentive DB 116, and the like.

The technical DB 111 can store information on power generation facilities of the renewable power generation companies and specification information (or technical information) of the solar power generation power plants and / or energy storage devices owned by the renewable power generation companies. In addition, the technical DB 111 can store information on the power generation facilities of the brokers and specification information of the solar power plants and / or energy storage devices managed by the brokers.

The power generation amount DB 112 can store photovoltaic power generation data of a solar power plant owned by all renewable power generation companies. In addition, the power generation amount DB 112 can store the photovoltaic generation data of the solar power plant managed by all the intermediaries.

The weather database 113 can store the weather data of the whole country received from the weather station. At this time, the weather database 113 can manage weather data by region and / or time. The weather data may include temperature data, humidity data, cloud data, precipitation data, radiation dose data, wind direction / wind speed data, sunrise / sunset time data, atmospheric pressure data, and the like.

The SMP DB 114 stores data on the electricity market price by the power exchange provided by the power exchange. This is because the electricity market price traded at the KPX is variable by time. For example, during the daytime, power market prices are traded at relatively high prices, and at dawn time prices are traded at relatively low prices. In addition, the SMP DB 114 can manage the data on the electricity market price by hour, week, month, and year.

The REC DB 115 stores REC price data on a monthly or annual basis provided by the power exchange. The REC DB 115 may store weight data according to the type and installation type of the renewable energy. Also, the REC DB 115 may store data relating to the REC price reflecting the weight.

The prediction incentive DB 116 stores prediction incentive data for each time period provided by the power exchange. The prediction incentive is an incentive given as a contribution to the output stability of the renewable generation facility, and can be determined in advance by the government (Power Exchange, KEPCO, etc.). These forecasting incentives can be provided as part of the revenues to brokers that broker multiple photovoltaic systems.

The output pattern calculating unit 120 may include a single solar system power generation pattern calculating unit 121 and a combined solar system output pattern calculating unit 123. [ In the present embodiment, the output pattern calculating unit 120 includes two modules 121 and 123, but it is not limited thereto and it will be apparent to those skilled in the art that the output pattern calculating unit 120 may be composed of one module.

The single solar photovoltaic system generation pattern calculation unit 121 calculates the power generation pattern of the single photovoltaic system on a time basis using the photovoltaic generation data received from the power generation amount DB 112 and the weather data received from the wakeup DB 113 Function can be performed.

The combined solar power system output pattern calculating unit 123 calculates the combined solar power system output pattern by using the power generation pattern data of the single solar photovoltaic system received from the single solar photovoltaic power generation pattern calculating unit 121 and the ESS data received from the technical DB 111, It is possible to perform a function of calculating the output pattern of the optical system by time zone. Here, the output pattern of the combined photovoltaic system includes a power generation pattern of a solar power plant (PV) and a discharge pattern of an energy storage device (ESS).

The profit calculator 130 may include a single solar system profit calculator 131 and a complex solar system profit calculator 133. Hereinafter, in this embodiment, the revenue calculation unit 130 is configured by two modules 131 and 133, but it is not limited thereto, and it will be apparent to those skilled in the art that the revenue calculation unit 130 may be composed of one module.

The single solar light system profit calculator 131 can calculate the profit of the single solar light system using the power generation pattern data, the SMP price data, the REC price data, and the prediction incentive data of the single solar light system. The single solar light system profit calculator 131 can calculate the profit of the single solar light system by the REC level.

The complex solar system profit calculator 133 can calculate the profit of the complex solar system using the output pattern data, the SMP price data, the REC price data, and the prediction incentive data of the complex solar system. The combined photovoltaic system profit calculator 133 can calculate the profit of the combined photovoltaic system by ESS capacity and / or REC level.

The output unit 140 displays (outputs) the information processed in the solar system profit estimation apparatus 100. For example, the output unit 140 may output execution screen information of an application program driven by the solar system profit estimation apparatus 100, UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information Can be displayed.

The output unit 140 can display the power generation pattern of the single solar light system and the output pattern of the composite solar light system. Also, the output unit 140 may display the profit calculation result of the single solar light system and the profit calculation result of the combined solar light system. Also, the output unit 140 may display the result of comparing the profit of the single photovoltaic system with the profit of the multi-photovoltaic system.

The output unit 140 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) display, a 3D display, and an e-ink display.

As described above, the apparatus 100 for calculating the profit of the solar light system according to the present invention calculates the output pattern and the profit of the single solar light system and the combined solar light system, and provides the output pattern and the profit to the intermediary provider or the power policy maker, (KPX, KEPCO, etc.), it is possible to determine the level of payment and the appropriate REC level to obtain the output stability of the new and renewable generation facilities, and the brokerage operator can decide whether to enter the power market through profit analysis .

The operation of the single photovoltaic system generation pattern calculation unit 121, the complex photovoltaic system output pattern calculation unit 123, the single photovoltaic system profit calculation unit 131, and the complex photovoltaic system profit operation unit 133 Will be described in detail with reference to the drawings.

5 is a view for explaining the operation of a single solar photovoltaic generation pattern generating unit according to an embodiment of the present invention.

5, the single solar photovoltaic generation pattern calculation unit 121 may receive power generation amount data of a single solar photovoltaic system to be subjected to profit calculation from the power generation amount DB 112 (S510).

The single solar photovoltaic power generation pattern calculation unit 121 can receive the weather data in the area where the single photovoltaic system to be a profit target exists from the weather database 113. [ At this time, the gas-phase data may include temperature data, humidity data, cloud data, precipitation data, insolation data, wind direction / wind speed data, sunrise / sunset time data,

The single solar photovoltaic system generation pattern calculating unit 121 calculates the solar photovoltaic power generation pattern using the photovoltaic generation data received from the power generation amount DB 112 (that is, power generation amount data for each time period in the past) Precipitation probability data) can be used to calculate the power generation pattern of the single photovoltaic system by time zone (S520).

The single solar photovoltaic system generation pattern calculating unit 121 can calculate the power generation pattern (or the generation amount for each time period) of the single solar photovoltaic system by using the following equation (1).

PVG (d-1, t) is the power generation amount per day before the day, and ΔPVG (t) is the PV power generation amount fluctuation rate according to the weather.

The variation rate (PVVG (t)) of the PV generation amount with respect to the weather can be calculated using the following equation (2).

(T) is the weight function of the cloud (the learning function of the cloud), and β (t) is the weight of the precipitation probability (t) is the variance of the precipitation probability Function (learning function related to precipitation probability).

The fluctuation rate of cloudiness (Δ cloudiness (t)) can be calculated as shown in Equation (3) below and the rate of change of precipitation probability (Δ precipitation probability t) can be calculated by Equation (4) below.

Here, the cloudiness is represented by a value from 0 to 10 for each region, and the probability of precipitation can be expressed by 0 to 100% for each region. If the single photovoltaic system that is subject to profit calculation is a national unit, the probability of cloudiness and precipitation can be calculated using Equation (5) below.

On the other hand, in the case where a single photovoltaic system subject to profit calculation is an intermediary company, the probability of cloudiness and precipitation can be calculated using Equation (6) below.

The single solar photovoltaic system generation pattern calculating unit 121 can generate the power generation pattern for each hour of the week / week / month / year by using Equations 1 to 6 above. The single solar photovoltaic system generation pattern calculation unit 121 may transmit the generation pattern for each time period to the combined photovoltaic system output pattern calculation unit 123 and the single photovoltaic system profit calculation unit 131 at operation S530.

Unlike the prior art, the electric power prediction method according to the present invention can predict the generation amount by time of day, which is seasonally changed, by continuously updating the actual data without using any seasonal variable or monthly variable .

6 is a view for explaining the operation of the complex photovoltaic system output pattern calculating unit according to the embodiment of the present invention.

Referring to FIG. 6, the complex solar power system output pattern calculating unit 123 may receive data regarding a power generation pattern of a single solar system by a single solar power system generation pattern calculating unit 121 (S610) .

The complex solar power system output pattern calculating unit 123 calculates specification data (hereinafter referred to as 'ESS data') about the energy storage device (ESS) existing in the complex solar cell system to be profit- From the technical DB 111. [ At this time, the specification data may include capacity information of the energy storage device, charge / discharge profile information, charge / discharge scheduling information, manufacturing year information, manufacturer information, and the like.

The complex solar power system output pattern calculating unit 123 may calculate the discharge pattern of the energy storage device (ESS) by time slot using the ESS data received from the technology DB 111 (S620). That is, the complex solar power system output pattern calculating unit 123 can calculate the discharge pattern of the energy storage device (ESS) by time or by using the charge / discharge algorithm (daytime charge, nighttime discharge, day / 1 cycle) .

The complex solar power system output pattern calculating unit 123 may detect the power generation pattern of the solar power plant based on the data received from the single solar power system generation pattern calculating unit 121 at step S630. Here, since the single photovoltaic system is a system including only the photovoltaic power generation station, the generation pattern of the single photovoltaic system is the same as that of the photovoltaic power plant detected by the multipolar photovoltaic system output pattern calculation unit.

The complex solar power system output pattern calculating unit 123 may calculate the output pattern of the combined solar photovoltaic system by time zone by summing the time-based discharge pattern of the energy storage device (ESS) and the power generation pattern of the solar power plant by time S640).

The composite solar-system output pattern calculating unit 123 may generate an output pattern for each time period (or an output amount for each time period) in units of day / week / month / year. The complex solar system output pattern calculating unit 123 may transmit the output pattern for each time period to the combined solar system profit calculator 133 (S650).

FIG. 7 is a view for explaining the operation of the single photovoltaic system profit operating unit according to the embodiment of the present invention.

Referring to FIG. 7, the single solar system profit calculator 131 may receive the data regarding the power generation pattern of the single solar system by the single solar system power generation pattern calculator 121 (S710).

The single solar-system profit operating unit 131 can receive SMP price data by time zone from the SMP DB 114 (S720). Also, the single photovoltaic system profit calculation unit 131 can receive data on the REC price and the weight from the REC DB 115. [ In addition, the single solar-system profit calculator 131 can receive data on the forecast incentives from the forecast incentive DB 116. [

The single solar system profit operating unit 131 can calculate the SMP profit of the single solar system using the power generation pattern matrix and the SMP matrix (i.e., by multiplying) (S730).

The single photovoltaic system profit calculator 131 calculates the REC profit of the single photovoltaic system using the power generation pattern matrix and the REC price matrix that reflects the weight (i.e., multiplied) (S740).

The exclusive solar light system profit calculator 131 can calculate the predicted incentive profit of the single solar light system using the power generation pattern matrix and the prediction incentive matrix (i.e., multiplying) (S750).

Then, the single solar system revenue calculating unit 131 may calculate the total profit of the single solar system by summing the SMP revenue of the single solar system, the REC revenue, and the forecast incentive revenue (S760).

FIG. 8 is a view for explaining the operation of the complex solar system profit operating unit according to the embodiment of the present invention.

Referring to FIG. 8, the complex photovoltaic system profit calculator 133 may receive the data related to the output pattern of the complex photovoltaic system from the complex photovoltaic system output pattern calculator 123 at step S810.

The complex solar system profit calculator 133 may receive the SMP price data by time slot from the SMP DB 114 (S820). Also, the combined solar-system profit calculator 133 can receive data on the REC price and the weight from the REC DB 115. [ In addition, the combined solar-system profit calculator 133 can receive prediction incentive data for each time period from the prediction incentive DB 116. [

The complex solar system profit calculator 133 can calculate the SMP profit of the complex solar system by using the output pattern matrix and the SMP matrix (i.e., multiplying) (S830). Here, the output pattern matrix may be composed of a power generation pattern matrix and a discharge pattern matrix.

The complex solar system profit calculator 133 can calculate the REC profit of the complex solar system using the output pattern matrix and the REC price matrix that reflects the weight (i.e., multiplied) (S840). More specifically, the combined solar system profit calculator 133 can calculate the first REC profit of the hybrid solar system using the power generation pattern matrix of the solar power plant and the REC price matrix reflecting the first weight. The combined solar system profit calculator 133 can calculate the second REC profit of the combined solar photovoltaic system using the discharge pattern matrix of the ESS and the REC price matrix reflecting the second weight. The combined solar system profit calculator 133 can calculate the total REC revenue of the combined solar photovoltaic system by summing the first REC profit and the second REC profit.

The complex solar system profit calculator 133 may calculate the predicted incentive profit of the complex solar system using the output pattern matrix and the prediction incentive matrix (i.e., multiplying) (S850).

Then, the combined solar system profit calculator 133 can calculate the total profit of the combined solar system by summing the SMP profit of the complex solar system, the REC profit, and the predicted incentive profit (S860).

The complex solar system profit calculator 133 is designed to calculate the value of the new power generation type (that is, the type of the new and renewable power generation that assures the output stability of the power generation facility through the ESS) Revenue can be calculated reflecting the incentive for forecasting.

9 is a flowchart illustrating a method of calculating the profit of a photovoltaic system according to an embodiment of the present invention.

Referring to FIG. 9, the solar system profit calculation apparatus 100 may calculate the power generation pattern of the solar photovoltaic system by time zone using the photovoltaic generation data and the weather data received from the database 110 (S910) .

The solar system profit and loss estimating apparatus 100 uses the power generation pattern data of the single solar photovoltaic system received from the single solar photovoltaic generation pattern calculating unit 121 and the ESS data received from the database 110, The output pattern can be calculated for each time zone (S920). Here, the output pattern of the combined photovoltaic system includes a power generation pattern of a solar power plant (PV) and a discharge pattern of an energy storage device (ESS).

The solar-system-system profit estimation apparatus 100 calculates the power-generation pattern data of the single solar system received from the single solar-system-system power generation pattern calculation unit 121, the SMP price data received from the database 110, the REC- The revenue of the single photovoltaic system can be calculated using the incentive data (S930). At this time, the solar system profit calculation apparatus 100 can calculate the profit of the solar photovoltaic system according to the REC level.

The solar system profit and loss estimating apparatus 100 calculates an output pattern data of the composite solar power system received from the composite solar power system output pattern calculating unit 123 and SMP price data received from the database 110, The incentive data may be used to calculate the revenue of the combined photovoltaic system (S940). At this time, the solar system profit estimation apparatus 100 can calculate the profit of the combined solar photovoltaic system according to the ESS capacity and / or the REC level.

The solar system profit and profit calculation apparatus 100 can display the revenue calculation result of the single solar light system and the profit calculation result of the combined solar light system on the display unit in operation S950. In addition, the solar system profit estimation apparatus 100 can display a result of comparing the profit of the single solar system with the profit of the hybrid solar system on the display unit. In addition, the solar system profit estimation apparatus 100 can display the power generation pattern of the single solar light system and the output pattern of the composite solar light system on the display unit.

For example, as shown in FIG. 10, the solar system profit calculation apparatus 100 can calculate the revenue of the single photovoltaic system and the combined photovoltaic system according to the ESS capacity and the REC level and display the same on the display unit.

As described above, the solar system profit estimation method according to the present invention enables to analyze the cost from the perspective of the government and the profit from the viewpoint of the brokerage company, which is predicted by introducing the brokerage business model into the electric power market.

By using the PV system profit estimation method according to the present invention, it is possible to confirm the level of payment at the transition stage, which is converted into a power system based on renewable energy, from a government perspective (or a national perspective) You can determine the appropriate REC level for induction. Also, from the perspective of an intermediary, a new operator can decide whether or not to enter the power business by analyzing the profit level considering the incentive for prediction when entering the power market.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: Solar system profit calculation device 110: Database
120: output pattern calculating unit 130:
140:

Claims (14)

A single photovoltaic power generation pattern calculating unit for predicting the power generation pattern of the single photovoltaic system by time zone;
A complex photovoltaic system output pattern calculating unit for predicting an output pattern of the photovoltaic system by time zone;
(SMP) price data and REC (Renewable Energy Certificate) price data and prediction incentive data acquired from the power generation pattern data obtained from the single solar photovoltaic power generation pattern calculating unit and the revenue of the single photovoltaic system A single solar system profit calculator for calculating a solar system profit; And
A complex solar system profit calculator for calculating the profit of the combined solar photovoltaic system using the output pattern data acquired from the complex solar photovoltaic system output pattern calculating unit, the SMP price data acquired from the database, the REC pricing data and the prediction incentive data Solar system revenue estimating device. The method according to claim 1,
Wherein the database includes at least one of a technical DB, an electricity generation DB, a weather DB, an SMP DB, a REC DB, and a prediction incentive DB. 3. The method of claim 2,
Wherein the forecasting incentive DB stores forecasting incentive data for each time period provided to the intermediary company as a contribution to the output stability of the new and renewable power generation facility. 3. The method of claim 2,
Wherein the single solar photovoltaic power generation pattern calculation unit calculates the power generation pattern for each solar photovoltaic system by using the past generation time amount of power generation information received from the power generation amount DB and the weather information received from the weather DB Optical system revenue estimator. 5. The method of claim 4,
Wherein the single solar photovoltaic power generation pattern calculating unit calculates the power generation pattern for each solar photovoltaic system by using the following equation.
[Mathematical Expression]
PVG (d, t) = PVG (d-1, t) + DELTA PVG (t)
ΔPVG (t) = Δ cloud (t) * α (t) + Δ precipitation probability (t) * β (t)
ΔPVG (t) is the fluctuation rate of the solar power generation amount according to the weather, Δ cloudiness (t) is the fluctuation rate of cloudiness, Δ is the fluctuation rate of the precipitation probability, and α (t) (T) is the weight function of precipitation probability. The method according to claim 1,
Wherein the output pattern of the hybrid solar photovoltaic system includes a power generation pattern of a solar power plant and a discharge pattern of an energy storage system (ESS). 3. The method of claim 2,
The composite solar power system output pattern calculating unit calculates an output pattern for a time series of the composite solar power system using the power generation pattern data received from the single solar power system generation pattern calculating unit and the ESS data received from the technology DB Of the solar system. The method according to claim 1,
The solar photovoltaic system profit calculation unit calculates an SMP profit of a single solar photovoltaic system using a power generation pattern matrix and an SMP matrix of a single solar photovoltaic system, calculates a SMP profit of the solar photovoltaic system using the power generation pattern matrix and a REC price matrix, Calculates the REC revenue of the optical system, computes the predicted incentive profit of the single solar system using the power generation pattern matrix and the predictive incentive matrix, adds the SMP revenue, the REC revenue, and the predicted incentive revenue of the single solar system Wherein the total profit of the solar photovoltaic system is calculated. The method according to claim 1,
The complex solar system profit operating unit calculates the SMP profit of the complex solar system by using the output pattern matrix and the SMP matrix of the complex solar system and calculates the SMP profit of the complex solar system by using the output pattern matrix and the REC price matrix reflecting the weight, Calculates the REC revenue of the optical system, computes the predicted incentive revenue of the combined photovoltaic system using the output pattern matrix and the predictive incentive matrix, adds the SMP revenue of the combined photovoltaic system, the REC revenue, and the predictive incentive revenue Wherein the total revenue of the combined photovoltaic system is calculated. The method according to claim 1,
Wherein the complex solar system profit calculation unit calculates the profit of the complex solar system by the ESS capacity. The method according to claim 1,
Wherein the complex solar system profit calculation unit calculates the profit of the complex solar system by the REC level. The method according to claim 1,
Further comprising an output unit for displaying a profit calculation result of the single solar light system and a profit calculation result of the complex solar light system. 13. The method of claim 12,
Wherein the output unit displays a result of comparing a profit of the single photovoltaic system with a profit of the multiple photovoltaic system. Predicting the power generation pattern of the solar photovoltaic system by time zone;
Estimating an output pattern of the composite solar cell system by time zone;
(SMP) price data and REC (Renewable Energy Certificate) price data and prediction incentive data obtained from the database and data on the power generation pattern of the single solar photovoltaic system, calculating the profit of the single photovoltaic system ; And
And calculating revenue of the combined photovoltaic system using data on the output pattern of the combined photovoltaic system, SMP price data, REC price data, and prediction incentive data obtained from the database.

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