CN113205208B - An efficiency and energy efficiency evaluation method of a comprehensive energy system accounting for primary energy permeability, wherein the efficiency and energy efficiency evaluation method comprises 15794 - Google Patents
An efficiency and energy efficiency evaluation method of a comprehensive energy system accounting for primary energy permeability, wherein the efficiency and energy efficiency evaluation method comprises 15794 Download PDFInfo
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Abstract
The invention discloses a comprehensive energy system considering the permeability of primary energyThe invention relates to an efficiency and energy efficiency evaluation method, which determines the input total of each energy type of an energy supply sideValues including external grid purchase input determined on account of primary energy source permeabilityA value; determining the output sum of each energy type at the energy consumption sideA value; output according to energy consumption sideValue and energy supply side input assemblyRatio of values to each otherAnd (5) evaluating efficiency. Introduction of the inventionEfficiency quantifies this characteristic. The invention determines the electricity purchasing input of the external power grid on the basis of considering the permeability of the primary energy sourceValue, comprehensive consideration of multi-type energy quality, determined comprehensive energy system input totalThe value comprehensively considers two attributes of 'quantity' and 'quality' of energy, and a comprehensive energy system can be evaluated more objectively and effectivelyAnd (4) energy efficiency.
Description
Technical Field
Background
With the worldwide concern about low carbon, economy, high efficiency and sustainable development, the cooperative optimization operation of various energy sources, such as cold, heat, electricity, gas and the like, becomes a new possible way for improving the operation efficiency of the system. The comprehensive energy system relates to the interconnection and coupling of various types of energy such as cold, heat, electricity, gas and the like, and comprises various devices, so that the operation condition of the whole system is more complex. The energy network covering multiple energy fields of electricity, gas, heat, cold and the like is constructed, technical barriers and management barriers among heterogeneous energy sources are broken, resource optimization configuration and energy cascade utilization are achieved, and new energy consumption is improved.
The development of modern smart power grids and energy internet puts high requirements on energy efficiency indexes of the comprehensive energy system. However, the prior art is lack of comprehensive consideration of energy quality characteristics, and the quantity characteristic of the energy is more concerned.
Disclosure of Invention
The invention aims to provide a comprehensive energy system considering the permeability of primary energyAn efficiency and energy efficiency evaluation method comprehensively considers diversified energy supply and energy utilization and establishes a comprehensive energy system based on energy quality>The efficiency and energy efficiency evaluation method is used for realizing high-efficiency scheduling operation of the multi-energy complementary comprehensive energy system and promoting new energy consumption.
The present invention adopts the following scheme. In one aspect, an integrated energy system is provided that accounts for primary energy penetrationThe efficiency and energy efficiency evaluation method comprises the following steps: acquiring an energy type and corresponding parameters of an energy supply side and an energy type and corresponding parameters of an energy consumption side;
determining the input of each energy type according to the energy type and corresponding parameters of the energy supply sideValue, including external network purchase input->Value, the external network purchasing input->The value is determined on the basis of accounting for the permeability of the primary energy source; for each input->Value is summed to obtain an energy supply side input total &>Value of,
determining the output of each energy type according to the energy type and corresponding parameters of the energy consumption sideValue, for each output->The values are summed to obtain the energy consumption side output total->A value;
output according to energy consumption sideValue and energy supply side input total->The ratio of the values is taken>And (5) evaluating efficiency.
Further, still include: output by energy consumption sideValue and energy supply side input total->And the maximum value ratio is used as an optimization target, and the optimization target is solved to obtain an optimized comprehensive energy system scheduling result.
In another aspect, the present invention provides an integrated energy system that accounts for primary energy penetrationAn efficiency and energy assessment system comprising: data acquisition module and energy supply side input total->Value determination module and energy consumption side output total->Value determination module and>an efficiency and energy efficiency evaluation module; the data acquisition module is used for acquiring the energy type and corresponding parameters of an energy supply side and the energy type and corresponding parameters of an energy consumption side;
the energy supply side input assemblyA value determining module for determining the input of each energy type according to the energy type and corresponding parameters on the energy supply side>Value, including external network purchase input->Value, the external network purchasing input->The value is determined on the basis of accounting for the permeability of the primary energy source; for each input->Value is summed to obtain an energy supply side input total &>The value of the sum of the values,
the energy consumption side output assemblyA value determining module for determining the output of each energy type based on the energy type of the energy consumption side and the corresponding parameters>Value, for each output->The values are summed to obtain the energy consumption side output total->A value;
the above-mentionedAn efficiency and energy efficiency evaluation module used for outputting total ^ according to the energy consumption side>Value and energy supply side input assemblyValue ratio proceeds>And (5) evaluating efficiency.
Further, the system also comprisesEfficiency and energy efficiency optimization moduleIn said +>An efficiency and energy efficiency optimization module for outputting a sum on the energy consumption side>Value and energy supply side input total>The maximum value ratio is used as an optimization target, and the optimization target is solved to obtain an optimized comprehensive energy system scheduling result
The invention has the following beneficial technical effects: along with the energy step conversion, the energy quality is gradually reduced, so that different forms of energy have different quality levels besides the quantitative connection, and the invention introducesEfficiency quantifies this characteristic. The invention determines the electricity purchasing input of the external power grid on the basis of considering the penetration rate of the primary energy source>Value, combined consideration of multi-type energy quality, determined combined energy system input total->The energy efficiency of the comprehensive energy system can be evaluated more objectively and effectively by comprehensively considering two attributes of 'quantity' and 'quality' of energy;
the invention realizes high-quality utilization of cold, heat, electricity, gas and the like, such as energy cascade utilization and the like, meets the diversified energy utilization requirements of users, realizes high-efficiency dispatching operation of a multi-energy complementary comprehensive energy system, and promotes new energy consumption.
The invention takes into account a primary energy permeability factor fromThe energy efficiency angle is used for carrying out the collaborative scheduling optimization of the comprehensive energy system, thereby being beneficial to the high-quality utilization of energy and the improvement of energy efficiency(ii) a Diversified energy supply and energy utilization requirements are fully and comprehensively considered, and the method is favorable for realizing resource optimal allocation and energy cascade utilization and promoting the consumption of new energy such as wind energy, solar energy and the like.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention;
FIG. 2 is a diagram of an integrated energy system architecture according to an embodiment of the present invention;
FIG. 3 is a plot of a load demand and new energy forecast for a campus integrated energy system;
FIG. 4 is a diagram of a regional integrated energy system load demand and new energy prediction algorithm;
FIG. 5 shows a comprehensive energy system of a parkA plot of the change in efficiency from time period to time period;
fig. 6 shows the permeability of the primary energy source for different types of energy sources to generate electricity in the purchased electric energy, which changes from time to time.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the drawings and the specific embodiments, but the scope of the present invention is not limited to the embodiments.
Comprehensive energy system considering primary energy permeabilityThe efficiency and energy efficiency evaluation method, as shown in fig. 1, includes the following steps:
(1) Inputting an integrated energy system dataset
And inputting a data set of the comprehensive energy system, wherein the data set comprises data sets of energy types of an energy supply side, energy types of an energy consumption side, environmental temperature and the like.
In the formula: EX in For energy supply side input assemblyA value; />Respectively purchase the electricity input for the external power grid>Value, renewable energy generation input>Value, biomass power generation input->Value, natural gas power generation input->The value is obtained.
In the formula: EX out Output for energy consumption sideA value; />Respectively outputs a cold load->Value, heat load output->Value, electrical load output->Value, natural gas load output->The value is obtained.
In the formula:is integrated for an integrated energy system>Efficiency; EX out Output for energy consumption side>A value; EX in For inputting the total for the energy supply side>The value is obtained.
In the formula:for external power grid to purchase the electricity input->A value; />Respectively showing the permeability of a new energy source in outsourcing power, the permeability of a coal source in outsourcing power and the permeability of a natural gas source in outsourcing power at the moment t; eta coal 、η gas The average generating efficiency of the coal-fired thermal power generating unit and the average generating efficiency of the gas generating unit are respectively; />Is outsourcing power at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period; />The total amount of renewable energy power generation, the total amount of power generation of a coal-fired thermal power generating unit, the total amount of power generation of a gas generating unit and the total amount of power generation of all types of generating units at the energy supply side of the comprehensive energy system at the moment t are respectively.
In the formula:power generation input for renewable energy sources>A value; />Respectively the wind power generation amount and the photovoltaic power generation amount at the moment t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:generating electricity input for biomass>A value; ζ represents a unit bb Is based on the charge substance>A factor; />Is the biomass fuel quantity at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:for the electricity generation input of natural gas->A value; zeta g For natural gas>A factor; />Is the natural gas fuel quantity at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:output for cold load->A value; />The working environment temperature and the reference point temperature are used for cooling at the moment t; />Is the cooling load on the energy consumption side at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:output for a heat load>A value; />Working environment temperature and reference point temperature during heat supply at the moment t; />Is the thermal load on the energy consumption side at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:output for an electrical load>A value; />Is the electrical load on the energy consumption side at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:for natural gas load export>A value; />Is the natural gas load on the energy consumption side at time t; delta t is a scheduling optimization step length; NT is the scheduling optimization period.
In the formula:is integrated for an integrated energy system>Efficiency; EX out Output for energy consumption side>A value; EX in For inputting the total for the energy supply side>The value is obtained.
(6) Outputting an integrated energy system dataset
Outputting the data set of the comprehensive energy system, including the energy consumption ratios of various types at the energy supply side and the energy consumption ratios of various types at the energy consumption side, and optimizingEfficiency, new energy consumption and the like.
In this embodiment, a typical day in winter in a certain area is used as an analysis research object, the simulation step size is set to 1 hour, and the optimal scheduling operation period is set to 24 hours. Integrated energy system taking primary energy permeability into account in embodimentThe comprehensive energy system architecture and the multi-type energy flow relationship of the efficiency and energy efficiency evaluation method are shown in fig. 2.
In fig. 2, an integrated energy system taking into account the permeability of primary energyThe example architecture of the efficiency and energy efficiency assessment method mainly comprises three parts, namelyIs a regional comprehensive energy system, an energy distribution station and a park comprehensive energy system. In the regional comprehensive energy system part, an energy transmission system comprises an electric power system, a thermodynamic system and a gas system, an input source of the regional comprehensive energy system comprises wind power, photovoltaic, thermal power, an air source and coal, the electric power system, the thermodynamic system and the gas system are coupled, interconnected and energy-converted through an electric boiler, a thermoelectric cogeneration device, an electric gas conversion device and a gas boiler device, energy consumption requirements mainly comprise an electric load, a thermal load and a gas load, and the regional comprehensive energy system transmits different types of energy to a power distribution station. The energy distribution station mainly comprises a power distribution station and a gas distribution station, and is a middle coupling conversion and distribution hub of a regional comprehensive energy system and a park comprehensive energy system. In the comprehensive energy system part of the park, the energy distribution station inputs electric energy and natural gas energy to the comprehensive energy system of the park, distributed small-scale photovoltaic and wind power can inject electric energy into the comprehensive energy system of the park, biomass injects fuel into a biomass boiler, terminal loads mainly comprise electric loads, heat loads, cold loads and gas loads, and the loads are output on a consumption side (or on a consumption side)>Part of the park, the input of the park integrated energy system>And output->The coupling conversion is carried out through equipment such as an electric refrigerator, an ice cold storage air conditioner, a ground source heat pump, an absorption refrigerator, a gas turbine, a waste heat recovery device, a biomass boiler, a gas boiler and the like. The comprehensive energy system taking into account the permeability of the primary energy source in the invention>The calculation example of the efficiency and energy efficiency evaluation method has a wide engineering application scene, and has typical representativeness and universality.
Comprehensive energy system for park in embodimentEvaluating the efficiency and the energy efficiency, and combining various types of loads in the park comprehensive energy system to output->The power distribution station, the gas distribution station, the photovoltaic, the wind power and the biomass form an input->The change of the energy permeability is changed through the input change of wind power, photovoltaic power, thermal power and an air source of a regional comprehensive energy system, and the change of the component proportion of the electric energy source and the change of the distribution volume in power distribution is directly reflected. In the embodiment of the present invention shown in fig. 2, the analysis is performed only in the winter scene, and the energy flow of the cooling part is not turned on.
The basic parameter setting in this embodiment includes: the thermal load, electrical load, and gas load demand and the predicted output of wind power and photovoltaic in the park integrated energy system are shown in fig. 3, and the parameter information of the main energy conversion equipment is shown in table 1. The heat load, the electric load, the gas load demand and the predicted output of wind power and photovoltaic in the regional integrated energy system are shown in fig. 4, and the parameter information of main energy conversion equipment is shown in table 2, wherein 2 thermal power units are provided and are respectively abbreviated as thermal power # 1 and thermal power #2.
TABLE 1 Main energy conversion equipment parameters of park Integrated energy System
TABLE 2 regional Integrated energy System Primary energy conversion device parameters
The results of this example were analyzed as follows: park comprehensive energy systemThe efficiency varies from time period to time period as shown in fig. 5, where the result is a regional summary in fig. 5The combined system and the park integrated system are simulated as a whole, and the optimization target is the energy efficiency optimization, namely the based on the & ltSUB & gt/SUB & gt of the park integrated energy system>And (4) efficiency scheduling, wherein the occupation ratio of different types of energy power generation of the electricity purchasing power is the variable quantity of the primary energy permeability, and the park comprehensive energy system and the regional comprehensive energy system are mutually coupled through tie line data. It can be clearly seen from fig. 5 that->The efficiency fluctuation range is relatively large, the efficiency fluctuation range continuously changes in the optimized scheduling period, and the simulation result is clear and intuitive and reflects the comprehensive energy system of the park in each time period>The efficiency state, the technology of the invention can effectively evaluate out->The variation of the efficiency.
Further, the permeability of the primary energy source for different types of energy generation in the electric energy purchased by the park integrated energy system changes from time to time as shown in fig. 6, and in the normal situationIn the related research of the efficiency optimization scheduling, the component factors of the input electric energy are not considered, namely the ratio of new energy power generation in the electricity purchasing electric energy, the ratio of coal-fired unit power generation, the ratio of gas unit power generation and the like, however, in the application of the actual engineering scene, the input ^ is greater or less than the preset value>The value, in particular the contribution of the electrical energy purchase, influences the input->The different proportions of the various components of the electric energy source, the different efficiencies of the various types of generating sets and the different grades of the various types of energy sources can be directly or directlyIndirect influencing>Efficiency and the output condition of each power supply of the regional comprehensive energy system.
According to the graph 6, the new energy permeability in the regional comprehensive energy system can influence the comprehensive energy system of the parkEfficiency and energy efficiency, it can be seen that the integrated energy system of the invention, taking into account the permeability of the primary energy source>The efficiency and energy efficiency evaluation method can effectively and accurately evaluate>Efficiency and reflecting the influence factors of the permeability of primary energy, and the technology of the invention has obvious creativity.
And the comprehensive energy system taking the permeability of the primary energy into account provided by the embodimentIn accordance with the efficiency and energy assessment method, embodiments of the present invention provide an integrated energy system based on primary energy penetration>Efficiency evaluation system includes: data acquisition module and energy supply side input total->Value determination module and energy consumption side output total->Value determination module and>an efficiency and energy efficiency evaluation module;
the data acquisition module is used for acquiring the energy type and the corresponding parameters of the energy supply side and the energy type and the corresponding parameters of the energy consumption side;
the energy supply side input assemblyA value determining module for determining the input of each energy type according to the energy type and corresponding parameters on the energy supply side>Value, including external network purchase input->Value, the external network purchasing input->The value is determined on the basis of accounting for the permeability of the primary energy source; for each input->The values are summed to obtain the energy supply side input total->Value of,
the energy consumption side output assemblyA value determining module for determining the output of each energy type based on the energy type of the energy consumption side and the corresponding parameters>Value, for each output>Value is summed up to an energy consumption side output sum->A value;
the above-mentionedAn efficiency and energy efficiency evaluation module for evaluating the energy according to the energySource-consumer side output summation>Value and energy supply side input assemblyThe ratio of the values is taken>And (5) evaluating efficiency. />
Optionally, the system further comprisesAn efficiency-efficiency optimization module that £ vs>An efficiency and energy efficiency optimization module for outputting the total->Value and energy supply side input total>And the maximum value ratio is used as an optimization target, and the optimization target is solved to obtain an optimized comprehensive energy system scheduling result.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses/units or modules may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. And a meterComprehensive energy system of primary energy permeabilityThe efficiency and energy efficiency evaluation method is characterized by comprising the following steps:
collecting the energy type and corresponding parameters of an energy supply side and the energy type and corresponding parameters of an energy consumption side;
determining the input of each energy type according to the energy type and corresponding parameters of the energy supply sideValues including external grid Electricity purchasing input>Value, the external network purchasing input->The value is determined on the basis of accounting for the permeability of the primary energy source; for each input->The values are summed to obtain the energy supply side input total->A value;
determining the output of each energy type according to the energy type and corresponding parameters of the energy consumption sideValue, for each output>The values are summed to obtain the energy consumption side output total->A value;
output according to energy consumption sideValue and energy supply side input total->Value ratio proceeds>Evaluating efficiency;
further comprising: output by energy consumption sideValue and energy supply side input total>The maximum value ratio is used as an optimization target, and the optimization target is solved to obtain an optimized comprehensive energy system scheduling result;
input of various energy typesThe value is not provided with the input of the external power grid for purchasing electricity>The value also includes a renewable energy generation input >>Value, biomass power generation input->Value and/or gas power input->A value;
in the formula (I), the compound is shown in the specification,power generation input for renewable energy sources>A value; />For the wind power generation at instant t>Is the photovoltaic power generation at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:generates electricity to the biomass and inputs>A value; zeta bb Based on the growth substance>A factor; />Is the biomass fuel quantity at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:for natural gas power generation input>A value; zeta g Is based on natural gas>A factor; />Is the natural gas fuel quantity at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period; external power grid electricity purchasing input->The values are calculated as follows: />
In the formula:for external power grid to purchase the electricity input->A value; />For the penetration rate of the new energy source in the purchased electricity at the moment t, the ratio of the new energy source to the source is selected>Is the penetration rate of the primary energy source of coal in outsourcing electricity at the moment t>Is the natural gas primary energy source permeability in the outsourcing electricity at the moment t; eta coal The average power generation efficiency eta of the coal-fired thermal power generating unit gas The average generating efficiency of the gas turbine set is obtained; />Is outsourcing power at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period; /> The total amount of renewable energy power generation, the total amount of power generation of a coal-fired thermal power generating unit, the total amount of power generation of a gas generating unit and the total amount of power generation of all types of generating units at the energy supply side of the comprehensive energy system at the moment t are respectively;
output of each energy typeValue bagOutputs the cold load together>Value, heat load output->Value, electrical load output->Value and/or gas load output->A value; wherein
in the formula:output for cooling load>A value; />For a working environment temperature at the time t for cooling, is>Is the reference point temperature when cooling is supplied at time t; />To the side of energy consumption at time tThe cold load of (2); delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:output for a heat load>A value; />For a working environment temperature at the moment t when supplying heat>Is the reference point temperature when heat is supplied at time t; />Is the thermal load on the energy consumption side at time t;
in the formula:output for an electrical load>A value; />Is the electrical load on the energy consumption side at time t;
2. Comprehensive energy system considering primary energy permeabilityAn efficiency/energy efficiency evaluation system, comprising: data acquisition module and energy supply side input total->Value determination module and energy consumption side output total->Value determination module and>an efficiency and energy efficiency evaluation module;
the data acquisition module is used for acquiring the energy type and the corresponding parameters of the energy supply side and the energy type and the corresponding parameters of the energy consumption side;
the energy supply side input assemblyA value determining module for determining the input of each energy type according to the energy type and corresponding parameters on the energy supply side>Value, including external network purchase input->Value, said external grid purchase input>The value is determined on the basis of accounting for the permeability of the primary energy source; for each input->Summing the values to obtain an energy supply side input sumA value;
the energy consumption side output assemblyA value determining module for determining the output of each energy type based on the energy type of the energy consumption side and the corresponding parameters>Value, for each output->Value is summed up to an energy consumption side output sum->A value;
the above-mentionedAn efficiency and energy efficiency evaluation module used for outputting total & lt/EN & gt according to the energy consumption side>Value and energy supply side input total->The ratio of the values is taken>Evaluating efficiency;
the system also comprisesEfficiency optimization module, said->An efficiency and energy efficiency optimization module for outputting the total->Value and energy supply side input total->The maximum ratio of the values is used as the optimization target forSolving to obtain an optimized comprehensive energy system scheduling result;
input of various energy typesThe value is not provided with the input of the external power grid for purchasing electricity>The value also includes a renewable energy generation input >>Value, biomass power generation input->Value and/or gas power input->A value;
in the formula (I), the compound is shown in the specification,power generation input for renewable energy sources>A value; />For the wind power generation at instant t>Is the photovoltaic power generation at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:generates electricity to the biomass and inputs>A value; zeta bb Is based on the charge substance>A factor; />Is the biomass fuel quantity at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
In the formula:for natural gas power generation input>A value; ζ represents a unit g Is based on natural gas>A factor; />Is the natural gas fuel quantity at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:purchasing power input for external power grid>A value; />In order to change the penetration rate of the new energy source in the purchased electricity at the time t, the ratio of the penetration rate of the new energy source is changed into the value of the original energy source>Is the penetration rate of the primary energy source of coal in outsourcing electricity at the moment t>The permeability of the natural gas primary energy source in the outsourcing electricity at the moment t;η coal The average power generation efficiency eta of the coal-fired thermal power generating unit gas The average generating efficiency of the gas turbine set is obtained; />Is outsourcing power at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period; /> The total amount of renewable energy power generation, the total amount of power generation of a coal-fired thermal power generating unit, the total amount of power generation of a gas generating unit and the total amount of power generation of all types of generating units at the energy supply side of the comprehensive energy system at the moment t are respectively;
output of each energy typeThe value comprises a cold load output->Value, heat load output->Value, electrical load output->Value and/or gas load output->A value; wherein
in the formula:output for cooling load>A value; />For a working ambient temperature at the time t for cooling purposes>Is the reference point temperature when cooling is supplied at time t; />Is the cooling load on the energy consumption side at time t; delta t is a scheduling optimization step length; NT is a scheduling optimization period;
in the formula:output for a heat load>A value; />Is at the time ofWorking environment temperature at moment t during heat supply>Is the reference point temperature when heat is supplied at the moment t; />Is the thermal load on the energy consumption side at time t; />
in the formula:output for an electrical load>A value; />Is the electrical load on the energy consumption side at time t;
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