User-side integrated energy network coordination control method and system

Abstract

The invention discloses a user-side integrated energy network coordination control method and system, and relates to the technical field of energy network regulation and control, and the method comprises the steps: obtaining the energy supply and consumption data of each loop, calculating the measured value of a carbon emission responsibility factor of each node, and calculating the actual value of the total carbon emission of a user; comparing the actual value of the total carbon emission amount of the user with the limiting value of the total carbon emission amount of the user, and sending warning information to the user when the total carbon emission amount of the user reaches an alarm state; calculating a carbon emission responsibility factor predicted value of each node at the t moment through the predicted data of energy supply and consumption at the t moment, and obtaining a carbon emission high-pass limit value of each node; and the instruction execution device is used for comparing the carbon emission responsibility factor measured value, the carbon emission responsibility factor predicted value and the carbon emission high-crossing limit value, and setting the operation mode of each node or issuing an execution instruction to each node loop according to a comparison result. The method ensures that the total carbon emission of the user-side integrated energy network meets the limit value requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of energy network regulation and control, and in particular to a user-side integrated energy network coordinated control method and system. Background Art

[0002] With the continuous development of the energy market and the transformation of the energy structure, the Integrated Energy System (IES), as a system that can efficiently utilize multiple energy sources and meet the diverse needs of users, has gradually become a research hotspot and development direction in the energy field.

[0003] At present, some studies have considered carbon emission responsibility factors as one of the factors to be considered, and discussed related contents such as optimized scheduling of integrated energy systems, optimized system configuration, and various energy control devices. However, this method has limitations. At present, the network coordination control devices that consider carbon emissions are mostly targeted at power networks. Some coordination controllers called integrated energy systems are actually only applicable to microgrids. The existing network coordination control methods are mostly targeted at source-side energy stations or grid-side energy transmission and distribution stations. There is no network coordination control method specifically for the user side.

[0004] In view of this, a user-side integrated energy network coordinated control method and system is needed. Summary of the invention

[0005] In view of the fact that the existing network coordination control methods in the prior art are mostly aimed at source-side energy stations or grid-side energy transmission and distribution stations, and there is no network coordination control method specifically for the user side, the present invention provides a user-side integrated energy network coordination control method and system, which can issue action instructions to each load circuit instruction execution device according to the strategy results, ensuring that the carbon emissions per unit time and the overall carbon emissions of the user-side integrated energy network meet the limit requirements. The specific technical scheme is as follows:

[0006] A user-side integrated energy network coordinated control method is applied to a user-side integrated energy network coordinated control system, the system includes a collection terminal arranged in a user energy supply loop and a user load loop, an integrated energy network coordinated control platform in a user energy system centralized control room, and an instruction execution device arranged in the user load loop; the system includes the following steps:

[0007] S01. Obtain the total carbon emission limit of users in a preset period in the integrated energy network coordination control platform;

[0008] S02. Obtain the total number of nodes in each loop of the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node;

[0009] S03, calculating the actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes;

[0010] S04, comparing the actual value of the user's total carbon emissions with the user's total carbon emissions limit to determine whether the user's total carbon emissions have exceeded the time limit;

[0011] S05. When the total carbon emission of the user reaches the alarm state, a warning message is sent to the user. The user performs the responsible removal and updates the actual total carbon emission limit of the user, and executes S06;

[0012] S06. Obtain the predicted data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t;

[0013] S07. Obtaining the carbon emission high crossing limit of each node according to the predicted value of the carbon emission responsibility factor;

[0014] S08. Compare the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result;

[0015] S09: setting the operation mode of each node according to the comparison result or issuing execution instructions to the instruction execution device of each node loop to execute corresponding actions.

[0016] Preferably, the obtaining of the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculating the measured value of the carbon emission responsibility factor of each node includes:

[0017] S21, obtaining the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes, and constructing the energy flow distribution matrix of each loop of the user-side integrated energy network at time t;

[0018] S22, obtaining the carbon emissions corresponding to the transmission unit energy of each loop flowing into each node, and constructing the carbon flow density matrix of each loop of the user-side integrated energy network at time t according to the carbon emissions;

[0019] S23, obtaining the carbon flow distribution matrix per unit time of each circuit at time t according to the energy flow distribution matrix and the carbon flow density matrix;

[0020] S24. Calculate the actual value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network based on the carbon flow distribution matrix and the total number of nodes.

[0021] Preferably, obtaining the predicted data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculating the predicted value of the carbon emission responsibility factor of each node at time t includes:

[0022] S61. Obtain the prediction data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the carbon flow distribution prediction matrix per unit time of each loop at time t based on the prediction data;

[0023] S62. Calculate the predicted value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network at time t based on the carbon flow distribution prediction matrix and the total number of nodes.

[0024] Preferably, when the total carbon emission of the user reaches the alarm state, a warning message is sent to the user, and the user performs the responsible removal and updates the actual total carbon emission limit of the user, and executes S06 including:

[0025] When the total carbon emissions of a user exceed the timeout warning value, a warning message is sent to the user that the total carbon emissions are about to exceed the timeout value, and each load node in the network is sorted in descending order according to the total carbon emission responsibility factor and pushed to the user, and the user selects the load to be removed;

[0026] When the total carbon emissions of the user is greater than the timeout alarm value, a warning message is sent to the user that the total carbon emissions have exceeded the timeout. After the user selects the load to be removed, the platform will update the actual carbon emissions and execute S06.

[0027] Preferably, the operation mode of each node is set according to the comparison result, including:

[0028] If the comparison result is that the predicted value of the carbon emission responsibility factor is less than the measured value of the carbon emission responsibility factor and less than the high-crossing limit of carbon emissions, the user will be prompted that the carbon emissions of the corresponding node are temporarily abnormal, and the original operation mode of the corresponding node will be maintained;

[0029] Preferably, the step of setting the operation mode of the node or issuing execution instructions to the instruction execution device of each node loop to execute the corresponding action according to the comparison result comprises:

[0030] If the comparison result is that the carbon emission high crossing limit value is less than the carbon emission responsibility factor predicted value, the user is warned that the carbon emission of the corresponding node exceeds the limit for a short time. The user chooses to maintain the original operation mode of the corresponding node or the user sends an execution instruction to the instruction execution device of the corresponding node loop to perform the corresponding action according to the load adjustability of the corresponding node.

[0031] Preferably, the step of setting the operation mode of the node and sending an execution instruction to the instruction execution device of the corresponding node loop to execute the corresponding action according to the comparison result also includes:

[0032] If the comparison result is that the measured value of the carbon emission responsibility factor is less than the predicted value of the carbon emission responsibility factor, it is determined whether the corresponding circuit is conductive;

[0033] If the loop is in the on state, the user chooses to maintain the original operation mode of the corresponding node. If the loop is in the off state, S06 to S07 are repeated at time t+1 to calculate the latest carbon emission high crossing limit of the corresponding node, and compare the measured value of the carbon emission responsibility factor with the latest carbon emission high crossing limit;

[0034] If the measured value of the carbon emission responsibility factor is ≤ the latest carbon emission high crossing limit, the original operation mode of the corresponding node is maintained;

[0035] If the measured value of the carbon emission responsibility factor is greater than the latest carbon emission high crossing limit, an execution instruction is sent to the instruction execution device of the corresponding node loop to perform the corresponding action.

[0036] Preferably, the user sends an execution instruction to the instruction execution device of the corresponding node loop to execute the corresponding action according to the load adjustability of the corresponding node, which includes:

[0037] If the corresponding node is a non-flexible adjustable load, a disconnection command is sent to the command execution device in the energy supply circuit of the corresponding node at time t+1, and the command execution device performs the disconnection action;

[0038] If the corresponding node is a flexible adjustable load, the integrated energy network coordination control platform will call and receive the load adjustable capacity sent by the corresponding node in real time, and calculate the load control process based on the load adjustable capacity, energy supply and consumption data, and energy supply and consumption forecast data, and send the load control command to the command execution device in the energy supply circuit of the corresponding node at time t+1, and the command execution device executes the load control action.

[0039] A user-side integrated energy network coordinated control system, applied to the aforementioned user-side integrated energy network coordinated control method, comprising:

[0040] The data collection terminal is arranged in the user energy supply loop and the user load loop, and is used to collect the energy supplied by each energy source and the energy consumed by each energy load in the user's comprehensive energy network;

[0041] The integrated energy network coordination control platform is arranged in the user energy system centralized control room, and is used to receive the collected data from the collection terminal, and to perform calculation and analysis on the collected data, and to execute the network coordination control strategy preset in the platform or issue action instructions according to the calculation and analysis results;

[0042] The first acquisition unit is used to obtain the total carbon emission limit of users in a preset period in the integrated energy network coordination control platform;

[0043] The second acquisition unit is used to obtain the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node;

[0044] A first calculation unit, configured to calculate an actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes;

[0045] A judgment unit, used to compare the actual value of the total carbon emissions of the user with the limit value of the total carbon emissions of the user, and judge whether the total carbon emissions of the user have exceeded the limit value;

[0046] The warning information push unit is used to send a warning message to the user when the user's total carbon emissions reach the alarm state, and the user performs the responsible removal and updates the actual user's total carbon emissions limit;

[0047] The second calculation unit is used to obtain the predicted data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t;

[0048] A third calculation unit is used to obtain the carbon emission high crossing limit value of each node according to the predicted value of the carbon emission responsibility factor;

[0049] A comparison unit, used to compare the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result;

[0050] An instruction issuing unit, used for setting the operation mode of each node or issuing an execution instruction to the instruction execution device of each node loop according to the comparison result;

[0051] The instruction execution device is arranged in the user load loop, and is used to receive the action instruction of the integrated energy network coordination control platform and execute the corresponding action.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] A user-side integrated energy network coordinated control method of the present invention obtains the user's total carbon emission limit value of a preset period in the integrated energy network coordinated control platform; obtains the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in the preset period, and calculates the measured value of the carbon emission responsibility factor of each node; calculates the actual value of the user's total carbon emission according to the measured value of the carbon emission responsibility factor and the total number of nodes; compares the actual value of the user's total carbon emission with the user's total carbon emission limit value to determine whether the user's total carbon emission has exceeded the time limit; when the user's total carbon emission reaches the alarm state, a warning message is issued to the user, and the user After the execution is responsible for cutting off, the actual user carbon emission total limit is updated; the predicted data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t is obtained through the autoregressive time series model, and the predicted value of the carbon emission responsibility factor of each node at time t is calculated; the carbon emission high crossing limit of each node is obtained according to the predicted value of the carbon emission responsibility factor; the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit are compared / between each other to obtain the calculation result; according to the comparison result, the operation mode of each node is set or the execution instruction is sent to the instruction execution device of each node loop to perform the corresponding action. The present invention runs a coordinated control strategy based on the carbon emission responsibility factor, and according to the strategy result, the operation mode of the node is set and the action instruction is sent to the instruction execution device of each load loop to perform the corresponding action, so as to ensure that the carbon emissions per unit time and the overall carbon emissions of the user-side integrated energy network meet the limit requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0055] Figure 1 This is a flow chart of a user-side integrated energy network coordination control method of the present invention.

[0056] Figure 2 The present invention is a flowchart of an embodiment of a user-side integrated energy network coordinated control method of the present invention.

[0057] Figure 3 This is a flow chart of another embodiment of a user-side integrated energy network coordinated control method of the present invention.

[0058] Figure 4 This is a system schematic diagram of a user-side integrated energy network coordinated control method of the present invention. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0061] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0062] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0063] See the following examples Figures 1 to 4 .

[0064] The embodiment of the present application provides a user-side integrated energy network coordinated control method, which is applied to the user-side integrated energy network coordinated control system. The system includes a collection terminal arranged in the user energy supply loop and the user load loop, an integrated energy network coordinated control platform in the user energy system control room, and an instruction execution device arranged in the user load loop; the system includes the following steps:

[0065] Step S01, obtaining the user carbon emission total limit value of a preset period in the integrated energy network coordination control platform;

[0066] The preset period can be set to one year or half a year, and can be set based on experience and actual conditions.

[0067] Step S02: Obtain the total number of nodes in each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node;

[0068] By setting up collection terminals in the user energy supply loop and the user load loop, the historical energy supply data of each power node in the network and the historical energy consumption data of the load node are collected, and the actual measured value of the carbon emission responsibility factor can be obtained by calculating and processing the corresponding collected data.

[0069] Specifically, the obtaining of the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and the calculation of the measured value of the carbon emission responsibility factor of each node includes:

[0070] S21, obtaining the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes, and constructing the energy flow distribution matrix of each loop of the user-side integrated energy network at time t;

[0071] S22, obtaining the carbon emissions corresponding to the transmission unit energy of each loop flowing into each node, and constructing the carbon flow density matrix of each loop of the user-side integrated energy network at time t according to the carbon emissions;

[0072] Taking the energy supply node in the energy supply loop of the user-side integrated energy network as the starting point, the carbon flow density of the energy flow flowing out of all loops from the node is equal to the carbon emission factor per unit time of the node, and the carbon emission factor (carbon emission) per unit time of each loop and each node in the network can be sequentially calculated;

[0073] S23, obtaining the carbon flow distribution matrix per unit time of each circuit at time t according to the energy flow distribution matrix and the carbon flow density matrix;

[0074] S24. Calculate the actual value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network based on the carbon flow distribution matrix and the total number of nodes.

[0075] The measured value of the carbon emission responsibility factor of each node is equal to the sum of the row elements of the carbon flow distribution matrix per unit time of each loop in the network corresponding to the node.

[0076] Step S03: Calculate the actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes;

[0077] Step S04: Compare the actual value of the user's total carbon emissions with the user's total carbon emissions limit to determine whether the user's total carbon emissions have exceeded the time limit;

[0078] A warning weight value can be set, such as 90%. When the actual value of the user's total carbon emissions reaches 90% of the user's total carbon emissions limit, the first warning warning is issued; when the actual value of the user's total carbon emissions reaches the user's total carbon emissions limit, a timeout warning is issued.

[0079] Step S05: When the total carbon emission of the user reaches the alarm state, a warning message is sent to the user, and the user performs the responsible removal and updates the actual total carbon emission limit of the user, and then executes step S06;

[0080] Specifically, when the total carbon emission of the user reaches the alarm state, a warning message is sent to the user, and the user performs the responsible removal and updates the actual total carbon emission limit of the user, and executes step S06 including:

[0081] When the total carbon emissions of a user exceed the timeout warning value, a warning message is sent to the user that the total carbon emissions are about to exceed the timeout value, and each load node in the network is sorted in descending order according to the total carbon emission responsibility factor and pushed to the user, and the user selects the load to be removed;

[0082] When the total carbon emissions of the user is greater than the timeout alarm value, a warning message is sent to the user that the total carbon emissions have exceeded the timeout. After the user selects the load to be removed, the platform will update the actual carbon emissions and execute step S06.

[0083] Step S06: Obtain the predicted data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t;

[0084] Specifically, the prediction data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t is obtained through the autoregressive time series model, and the prediction value of the carbon emission responsibility factor of each node at time t is calculated, which includes:

[0085] S61. Obtain the prediction data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the carbon flow distribution prediction matrix per unit time of each loop at time t based on the prediction data;

[0086] S62. Calculate the predicted value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network at time t based on the carbon flow distribution prediction matrix and the total number of nodes.

[0087] Step S07, obtaining the carbon emission high crossing limit value of each node according to the predicted value of the carbon emission responsibility factor;

[0088] Step S08, comparing the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result;

[0089] Step S09: according to the comparison result, the operation mode of each node is set or the execution instruction is sent to the instruction execution device of each node loop to execute the corresponding action. Specifically, the following situations are included:

[0090] (1) If the comparison result is that the predicted value of the carbon emission responsibility factor is less than the measured value of the carbon emission responsibility factor and less than the high-crossing limit of carbon emissions, the user is prompted that the carbon emissions of the corresponding node are temporarily abnormal, and the original operation mode of the corresponding node is maintained;

[0091] Preferably, the step of setting the operation mode of the node or issuing execution instructions to the instruction execution device of each node loop to execute the corresponding action according to the comparison result comprises:

[0092] (2) If the comparison result is that the carbon emission high crossing limit value is less than the carbon emission responsibility factor prediction value, the user is warned that the carbon emission of the corresponding node exceeds the limit for a short time. The user chooses to maintain the original operation mode of the corresponding node or the user sends an execution instruction to the instruction execution device of the corresponding node circuit to perform the corresponding action according to the load adjustability of the corresponding node.

[0093] Specifically, the user sends an execution instruction to the instruction execution device of the corresponding node circuit according to the load adjustability of the corresponding node to execute the corresponding action, including:

[0094] If the corresponding node is a non-flexible adjustable load, a disconnection command is sent to the command execution device in the energy supply circuit of the corresponding node at time t+1, and the command execution device performs the disconnection action;

[0095] If the corresponding node is a flexible adjustable load, the integrated energy network coordination control platform will call and receive the load adjustable capacity sent by the corresponding node in real time, and calculate the load control process based on the load adjustable capacity, energy supply and consumption data, and energy supply and consumption forecast data, and send the load control command to the command execution device in the energy supply circuit of the corresponding node at time t+1, and the command execution device executes the load control action.

[0096] In this embodiment, for load nodes whose actual carbon emissions exceed the high crossing limit, appropriate action instructions will be taken according to the flexible adjustable capacity of the node.

[0097] (3) If the comparison result is that the measured value of the carbon emission responsibility factor is less than the predicted value of the carbon emission responsibility factor, then it is determined whether the corresponding circuit is conductive;

[0098] If the loop is in the on state, the user chooses to maintain the original operation mode of the corresponding node. If the loop is in the off state, S06 to S07 are repeated at time t+1 to calculate the latest carbon emission high crossing limit of the corresponding node, and compare the measured value of the carbon emission responsibility factor with the latest carbon emission high crossing limit;

[0099] If the measured value of the carbon emission responsibility factor is ≤ the latest carbon emission high crossing limit, the original operation mode of the corresponding node is maintained;

[0100] If the measured value of the carbon emission responsibility factor is greater than the latest carbon emission high crossing limit, an execution instruction is sent to the instruction execution device of the corresponding node loop to perform the corresponding action.

[0101] A user-side integrated energy network coordinated control method of the present invention runs a coordinated control strategy based on a carbon emission responsibility factor, and sets the operation mode of the node according to the strategy result or sends action instructions to each load circuit instruction execution device to execute corresponding actions, thereby ensuring that the carbon emissions per unit time and the overall carbon emissions of the user-side integrated energy network meet the limit requirements.

[0102] In order to explain the present application scheme, another embodiment of a user-side integrated energy network coordinated control method of the present invention describes the steps in detail as follows:

[0103] Step 1: Input the user's annual carbon emission limit into the integrated energy network coordination control platform, denoted as P lim ;

[0104] Step 2: Any energy supply, energy consumption, and energy distribution equipment in the user-side integrated energy network is regarded as its network node. Through the acquisition terminal, the hourly energy supply and consumption data of loop ij (node ​​i to node j) within the past 7 days (at least) is entered into the platform, denoted as e t (ij), the unit is kW, when there is no path from node i to node j, e t (ij) takes 0;

[0105] Step 3: Construct the energy flow distribution matrix E of each loop of the user-side integrated energy network at time t t , if the total number of network nodes is N, then the matrix E t It should be an N-order matrix, with the element in the i-th row and j-th column represented by e t (ij) assignment;

[0106] Step S04: Calculate the carbon emission value (carbon emission factor per unit time) caused by node i producing or consuming unit energy at time t, denoted as u t (i), unit: kgCO2 / kW. If the total number of nodes in the user-side integrated energy network is N, for the energy supply node i in the energy supply loop in the network, the carbon emission value (carbon emission factor per unit time) caused by its production of unit energy is assigned using the following rules:

[0107] a) Carbon emission factor per unit time of photovoltaic power generation system = 0;

[0108] b) Carbon emission factor per unit time of wind power generation system = 0;

[0109] c) Carbon emission factor per unit time of gas-fired power generation system = gas consumption × natural gas carbon emission factor / power generation (reference value of natural gas carbon emission factor is 2.02kgCO2 / Nm3 );

[0110] d) Carbon emission factor per unit time of thermal power generation system = coal consumption × standard coal carbon emission factor / power generation (reference value of standard coal carbon emission factor is 2.72kgCO2 / kgce);

[0111] e) Carbon emission factor per unit time of electricity / cooling / heating produced by trigeneration system = the proportion of electricity / cooling / heating energy in the total output energy × gas consumption × gas carbon emission factor / total electricity / cooling / heating produced;

[0112] f) The carbon emission factor per unit time of power purchase by the power grid shall be taken from the carbon emission factor per unit time of the superior substation according to the principle of proximity. When the carbon emission factor of the superior substation is unavailable, the value may be taken according to the publicly disclosed emission factor of the provincial power grid in China;

[0113] g) The carbon flow density of the cold and hot transmission and distribution station shall be based on the principle of proximity, taking the carbon emission factor per unit time of the upper-level cold and hot production station;

[0114] For load node i in the load loop of the user-side integrated energy network, the carbon emission value (carbon emission factor per unit time) caused by its consumption of unit energy is equal to the weighted value of the carbon flow density corresponding to all energy flows flowing from node i, that is,

[0115]

[0116] Where: Carbon flow density ρ n represents the carbon emissions corresponding to the transmission unit energy of the nth loop flowing from node i, unit: kgCO2 / kW; e t (n i ) represents the energy supply and consumption data of the nth circuit flowing in from node i;

[0117] Taking the energy supply node in the energy supply loop of the user-side integrated energy network as the starting point, the carbon flow density of the energy flow flowing out of all loops from node i is equal to the carbon emission factor per unit time of the node, and the carbon emission factor per unit time of each loop and each node in the network can be calculated sequentially;

[0118] Step 5: Construct the carbon flow density matrix (U t ), U t The value rules of each matrix element are:

[0119] U t (ij) = u t (i)

[0120] Step 6: The energy flow distribution matrix (E t ) and the carbon flow density matrix of each loop in the network (U t) is used to make a Hadamard product to obtain the carbon flow distribution matrix per unit time of each circuit in the network at time t (L t ),Right now

[0121] L t =E t *U t (Hadamard)

[0122] Step 7: The measured value of the carbon emission responsibility factor of the load node j in each load loop of the user-side integrated energy network at time t is denoted as P t (j), unit: kgCO2 / kW, equal to the carbon flow distribution matrix per unit time of each circuit in the network (L t )Sum the elements in the jth row, that is:

[0123]

[0124] Step 8: Calculate the actual value of the user's total carbon emissions based on the measured value of the carbon emission responsibility factor at time t and the total number of nodes, denoted as P sum ,

[0125]

[0126] P sum With P lim For comparison, if P sum >0.9*P lim , it warns the user that the total carbon emissions of the system are about to exceed the limit for a long time, and displays the load nodes in the network in descending order according to the total carbon emission responsibility factor to the user. The user can select the load to be removed according to his or her actual situation;

[0127] If P sum >P lim , the user is warned that the total carbon emissions of the system have exceeded the limit for a long time. The user can also select the load to be removed according to his or her actual situation. After the user chooses to remove the specified node i, the platform will update the actual carbon emissions.

[0128] If P sum ≤0.9*P lim , then execute step nine;

[0129] Step 9: Use the autoregressive time series model to make a day-ahead forecast and obtain the forecast data of energy supply and energy consumption of loop ij at time t, denoted as e′ t (ij),

[0130] e′ t (ij)=c+φ1e t-24*1 (ij)+φ2e t-24*2 (ij)+φ3e t-24*3 (ij)+φ4e t-24*4 (ij)

[0131] +φ5e t-24*5 (ij)+φ6e t-24*6 (ij)+φ7e t-24*7 (ij)+∈ t

[0132] Where: c is a constant term, φ1, φ2, φ3, φ4, φ5, φ6, φ7 are autoregressive coefficients, ∈ t is the error term, and its specific value can be adjusted according to the application scenario of the integrated energy network coordinated control platform. Generally, c=0, φ1=0.25, φ2=0.2, φ3=0.2, φ4=0.1, φ5=0.1, φ6=0.1, φ7=0.05, ∈ t =0;

[0133] Step 10: Based on the prediction result data e′ obtained in step 9 t (ij), repeat steps 3 to 6 to calculate the predicted value of the carbon emission responsibility factor of load node j at time t in each load circuit of the integrated energy network, denoted as Y t (j), unit: kgCO2 / kW, equal to the carbon flow prediction matrix per unit time of each loop in the network (L′ t )Sum the elements in the jth row, that is:

[0134]

[0135] Step 11: Based on Y t (j) Calculate the carbon emission high crossing limit of node j, denoted as Y′ t (j), unit: kgCO2 / kW, calculated as follows:

[0136]

[0137] Step 12: The measured value of the carbon emission responsibility factor P at node j at time t t (j) Prediction value of carbon emission responsibility factor Y t (j) and carbon emission high crossing limit Y′ t (j) Compare and compare the results and perform the control as follows:

[0138] 1) If Y t (j) <P t (j)≤Y′ t (j), the user is prompted that the carbon emissions of node j are temporarily abnormal, and the original operation mode of node j is maintained;

[0139] 2) If Y′ t (j) <P t(j), the user node j is warned that the carbon emissions exceed the limit for a short time, and further determines whether the integrated energy network coordination control platform should be put into automatic control:

[0140] a) If the integrated energy network coordination control platform is not put into automatic control, the user manually determines whether to execute the control measures. If the user chooses not to execute the control measures, the original operation mode of node j is maintained. If the user chooses to execute the control measures, the process jumps to step 13;

[0141] b) If the integrated energy network coordination control platform has been put into automatic control, jump to step 13;

[0142] 3) If P t (j)≤Y t (j), then further determine whether the loop where node j is located is conductive. If the loop is conductive, maintain the original operation mode of node j; if the loop is disconnected, repeat steps 9 to 11 based on time t+1 to obtain the latest carbon emission high crossing limit of node j, recorded as Y′ t+1 (j), unit: kgCO2 / kW, and P t (j) and Y′ t+1 (j) For comparison:

[0143] a) If P t (j)≤Y′ t+1 (j), then maintain the original operation mode of node j;

[0144] b) If P t (j)>Y′ t+1 (j), then at time t+1, the integrated energy network coordination control platform sends a closing command to the command execution device in the energy supply circuit of node j;

[0145] Step 13: Determine whether node j is a flexible adjustable load:

[0146] 1) If node j is not a flexible adjustable load, the integrated energy network coordination control platform sends a disconnection command to the command execution device in the energy supply circuit of node j at time t+1;

[0147] 2) If node j is a flexible adjustable load, the load control stroke is calculated as follows:

[0148] The integrated energy network coordination control platform calls and accepts the load adjustable capacity sent by load node j in real time, denoted as C t (j), unit kWh, the integrated energy network coordination control platform will be compared With C t (j);

[0149] 1) If The load node j can be fully adjusted. The integrated energy network coordination control platform sends a load reduction command to the command execution device in the energy supply circuit of node j. The load reduction process is based on implement;

[0150] 2) If The load node j can be insufficiently adjusted. The network coordination control platform sends a load reduction command to the command execution device in the energy supply circuit of node j. The load reduction stroke is calculated according to C t (j) execution;

[0151] At time t+1, the integrated energy network coordination control platform sends a load control command to the command execution device in the node j energy supply circuit to execute the corresponding load control action.

[0152] Step 14: After re-executing steps 2 to 7, the integrated energy network coordination and control platform outputs the actual energy consumption and the corresponding carbon emission responsibility factor of node j after executing the control strategy at the current moment.

[0153] The embodiment of the present application further provides a user-side integrated energy network coordinated control system, which is applied to the aforementioned user-side integrated energy network coordinated control method, including:

[0154] The data collection terminal is arranged in the user energy supply loop and the user load loop, and is used to collect the energy supplied by each energy source and the energy consumed by each energy load in the user's comprehensive energy network;

[0155] The integrated energy network coordination control platform is arranged in the user energy system centralized control room, and is used to receive the collected data from the collection terminal, and to perform calculation and analysis on the collected data, and to execute the network coordination control strategy preset in the platform or issue action instructions according to the calculation and analysis results;

[0156] The first acquisition unit is used to obtain the total carbon emission limit of users in a preset period in the integrated energy network coordination control platform;

[0157] The second acquisition unit is used to obtain the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node;

[0158] A first calculation unit, configured to calculate an actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes;

[0159] A judgment unit, used to compare the actual value of the total carbon emissions of the user with the limit value of the total carbon emissions of the user, and judge whether the total carbon emissions of the user have exceeded the limit value;

[0160] The warning information push unit is used to send a warning message to the user when the user's total carbon emissions reach the alarm state, and the user performs the responsible removal and updates the actual user's total carbon emissions limit;

[0161] The second calculation unit is used to obtain the predicted data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t;

[0162] A third calculation unit is used to obtain the carbon emission high crossing limit value of each node according to the predicted value of the carbon emission responsibility factor;

[0163] A comparison unit, used to compare the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result;

[0164] An instruction issuing unit, used for setting the operation mode of each node or issuing an execution instruction to the instruction execution device of each node loop according to the comparison result;

[0165] The instruction execution device is arranged in the user load loop, and is used to receive the action instruction of the integrated energy network coordination control platform and execute the corresponding action.

[0166] It should be noted that the collection terminal installed in the user's energy supply circuit is used to collect the energy supplied by various energy sources in the user's comprehensive energy network. The energy referred to here includes but is not limited to coal, natural gas, solar energy, wind energy, electricity, and thermal energy; the energy supply circuit refers to but is not limited to the electric / cold / heat output circuit of coal-fired generator sets, the electric / cold / heat output circuit of gas generator sets, the power output circuit of photovoltaic generator sets, the power output circuit of wind generator sets, and the power supply circuit of distribution network; the specific forms of the energy supply circuit collection terminal refer to but are not limited to electricity meters, thermal energy meters, and steam meters.

[0167] The collection terminal installed in the user's load circuit is used to collect the energy consumed by each energy load in the user's comprehensive energy network. The loads referred to here include but are not limited to cooling load, heating load, and electrical load; the load circuit refers to but is not limited to the user's key production equipment energy receiving circuit, high-energy-consuming equipment energy receiving circuit, production workshop distribution cabinet output circuit, production workshop cylinder output circuit, cooling and heating main line output circuit, non-production building distribution box output circuit; the specific forms of the load circuit collection terminal refer to but are not limited to electricity meters, thermal energy meters, and steam meters.

[0168] The instruction execution device is installed at the user load circuit, which is used to execute the action instructions issued by the integrated energy network coordination control platform. The instruction execution devices referred to here include but are not limited to remote circuit breakers, power semiconductor devices, electric valves, and electromagnetic control valves. The installation of instruction execution devices requires the classification of user loads: flexible adjustable loads and rigid loads. Flexible adjustable loads correspond to the installation of remote power semiconductor devices and electromagnetic control valves, and rigid loads correspond to the installation of remote circuit breakers and electric valves.

[0169] A user-side integrated energy network coordination and control system of the present application is composed of an integrated energy network coordination and control platform, an energy supply loop collection terminal, a load loop collection terminal, and a load loop instruction execution device. The integrated energy network coordination and control platform operates a coordination control strategy based on a carbon emission responsibility factor based on the energy supply of each energy source and the energy consumption of each energy load sent by the energy supply loop collection terminal and the load loop collection terminal, and issues action instructions to each load loop instruction execution device according to the strategy results, to ensure that the carbon emissions per unit time and the overall carbon emissions of the user-side integrated energy network meet the limit requirements.

[0170] Those of ordinary skill in the art will appreciate that the units of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0171] In the embodiments provided by the present invention, it should be understood that the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0172] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0173] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nlyMemory), random access memory (RAM, RandomAccessMemory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A user-side integrated energy network coordination control method, applied to a user-side integrated energy network coordination control system, the system includes a collection terminal arranged in a user energy supply loop and a user load loop, an integrated energy network coordination control platform in a user energy system control room, and an instruction execution device arranged in a user load loop, characterized in that: The following steps are involved: S01. Obtain the total carbon emission limit of users in a preset period in the integrated energy network coordination control platform; S02. Obtain the total number of nodes in each loop of the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node; S03, calculating the actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes; S04, comparing the actual value of the user's total carbon emissions with the user's total carbon emissions limit to determine whether the user's total carbon emissions have exceeded the time limit; S05. When the total carbon emission of the user reaches the alarm state, a warning message is sent to the user. The user performs the responsible removal and updates the actual total carbon emission limit of the user, and executes S06; S06. Obtain the predicted data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t; S07. Obtaining the carbon emission high crossing limit of each node according to the predicted value of the carbon emission responsibility factor; S08. Compare the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result; S09: setting the operation mode of each node according to the comparison result or issuing execution instructions to the instruction execution device of each node loop to execute corresponding actions.

2. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: The obtaining of the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and the calculation of the measured value of the carbon emission responsibility factor of each node includes: S21, obtaining the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes, and constructing the energy flow distribution matrix of each loop of the user-side integrated energy network at time t; S22, obtaining the carbon emissions corresponding to the transmission unit energy of each loop flowing into each node, and constructing the carbon flow density matrix of each loop of the user-side integrated energy network at time t according to the carbon emissions; S23, obtaining the carbon flow distribution matrix per unit time of each circuit at time t according to the energy flow distribution matrix and the carbon flow density matrix; S24. Calculate the actual value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network based on the carbon flow distribution matrix and the total number of nodes.

3. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: The method of obtaining the predicted data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t through the autoregressive time series model and calculating the predicted value of the carbon emission responsibility factor of each node at time t includes: S61. Obtain the prediction data of energy supply and consumption of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the carbon flow distribution prediction matrix per unit time of each loop at time t based on the prediction data; S62. Calculate the predicted value of the carbon emission responsibility factor of each node in each load circuit of the user-side integrated energy network at time t based on the carbon flow distribution prediction matrix and the total number of nodes.

4. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: When the total carbon emission of the user reaches the alarm state, a warning message is sent to the user, and the user performs the responsible removal and updates the actual total carbon emission limit of the user, and executes S06 including: When the total carbon emissions of a user exceed the timeout warning value, a warning message is sent to the user that the total carbon emissions are about to exceed the timeout value, and each load node in the network is sorted in descending order according to the total carbon emission responsibility factor and pushed to the user, and the user selects the load to be removed; When the total carbon emissions of the user is greater than the timeout alarm value, a warning message is sent to the user that the total carbon emissions have exceeded the timeout. After the user selects the load to be removed, the platform will update the actual carbon emissions and execute S06.

5. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: The step of setting the operation mode of each node according to the comparison result includes: If the comparison result is that the predicted value of the carbon emission responsibility factor is less than the actual value of the carbon emission responsibility factor and less than the carbon emission high crossing limit, the user will be prompted that the carbon emissions of the corresponding node are temporarily abnormal, and the original operation mode of the corresponding node will be maintained.

6. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: The step of setting the operation mode of the node or issuing execution instructions to the instruction execution device of each node loop to execute corresponding actions according to the comparison result includes: If the comparison result is that the carbon emission high crossing limit value is less than the carbon emission responsibility factor predicted value, the user is warned that the carbon emission of the corresponding node exceeds the limit for a short time. The user chooses to maintain the original operation mode of the corresponding node or the user sends an execution instruction to the instruction execution device of the corresponding node loop to perform the corresponding action according to the load adjustability of the corresponding node.

7. A user-side integrated energy network coordinated control method according to claim 1, characterized in that: The step of setting the operation mode of the node and sending the execution instruction to the instruction execution device of the corresponding node loop to execute the corresponding action according to the comparison result also includes: If the comparison result is that the measured value of the carbon emission responsibility factor is less than the predicted value of the carbon emission responsibility factor, it is determined whether the corresponding circuit is conductive; If the loop is in the on state, the user chooses to maintain the original operation mode of the corresponding node. If the loop is in the off state, S06 to S07 are repeated at time t+1 to calculate the latest carbon emission high crossing limit of the corresponding node, and compare the measured value of the carbon emission responsibility factor with the latest carbon emission high crossing limit; If the actual measured value of the carbon emission responsibility factor is ≤ the latest carbon emission high crossing limit, the original operating mode of the corresponding node is maintained; if the actual measured value of the carbon emission responsibility factor is greater than the latest carbon emission high crossing limit, an execution instruction is sent to the instruction execution device of the corresponding node loop to perform the corresponding action.

8. A user-side integrated energy network coordinated control method according to claim 6, characterized in that: The user sends an execution instruction to the instruction execution device of the corresponding node circuit according to the load adjustability of the corresponding node to perform the corresponding action, including: if the corresponding node is a non-flexible adjustable load, then at time t+1, a disconnection instruction is sent to the instruction execution device in the energy supply circuit of the corresponding node, and the instruction execution device performs the disconnection action; If the corresponding node is a flexible adjustable load, the integrated energy network coordination control platform will call and receive the load adjustable capacity sent by the corresponding node in real time, and calculate the load control process based on the load adjustable capacity, energy supply and consumption data, and energy supply and consumption forecast data, and send the load control command to the command execution device in the energy supply circuit of the corresponding node at time t+1, and the command execution device executes the load control action.

9. A user-side integrated energy network coordination control system, characterized in that: A user-side integrated energy network coordinated control method applied to any one of claims 1 to 8, comprising: The data collection terminal is arranged in the user energy supply loop and the user load loop, and is used to collect the energy supplied by each energy source and the energy consumed by each energy load in the user's comprehensive energy network; The integrated energy network coordination control platform is arranged in the user energy system centralized control room, and is used to receive the collected data from the collection terminal, and to perform calculation and analysis on the collected data, and to execute the network coordination control strategy preset in the platform or issue action instructions according to the calculation and analysis results; The integrated energy network coordination control platform includes: The first acquisition unit is used to obtain the total carbon emission limit of users in a preset period in the integrated energy network coordination control platform; The second acquisition unit is used to obtain the total number of nodes of each loop in the user-side integrated energy network and the energy supply and consumption data between any two nodes in a preset period, and calculate the measured value of the carbon emission responsibility factor of each node; A first calculation unit, configured to calculate an actual value of the total carbon emissions of the user according to the measured value of the carbon emission responsibility factor and the total number of nodes; A judgment unit, used to compare the actual value of the total carbon emissions of the user with the limit value of the total carbon emissions of the user, and judge whether the total carbon emissions of the user have exceeded the limit value; The warning information push unit is used to send a warning message to the user when the user's total carbon emissions reach the alarm state, and the user performs the responsible removal and updates the actual user's total carbon emissions limit; The second calculation unit is used to obtain the predicted data of energy supply and energy use of any two nodes in each loop of the user-side integrated energy network at time t through an autoregressive time series model, and calculate the predicted value of the carbon emission responsibility factor of each node at time t; A third calculation unit is used to obtain the carbon emission high crossing limit value of each node according to the predicted value of the carbon emission responsibility factor; A comparison unit, used to compare the measured value of the carbon emission responsibility factor, the predicted value of the carbon emission responsibility factor and the carbon emission high crossing limit value among themselves or in pairs to obtain a calculation result; An instruction issuing unit, used for setting the operation mode of each node or issuing an execution instruction to the instruction execution device of each node loop according to the comparison result; The instruction execution device is arranged in the user load loop, and is used to receive the action instruction of the integrated energy network coordination control platform and execute the corresponding action.

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