Industrial flexible load automatic power control service compensation calculation method and system

Abstract

The invention discloses an industrial flexible load automatic power control service compensation calculation method and system. The method comprises the following steps: for each industrial flexible load which independently participates in master station control, modeling in an automatic power control system APC of a power grid master station in an equivalent unit mode; acquiring historical sampling data of the industrial flexible load virtual unit; performing data quality verification on the historical sampling data; calculating control service compensation basic data, calculating an APC service assessment index, and calculating a peak regulation contribution correlation coefficient index; calculating an industrial flexible load adjustment contribution value coefficient according to a control mode that the industrial flexible load participates in automatic control of the master station; calculating industrial flexible load to participate in main station APC control service assessment compensation; examining the industrial flexible load to obtain a daily industrial flexible load compensation and examination result; the examination comprises operation stability examination and regulation qualification examination; compared with a traditional method, the method can fairly evaluate, reasonably compensate and examine industrial flexible load participation in master station control.

Description

Technical Field

[0001] The present invention relates to an automatic power control service compensation calculation method and system, in particular to an industrial flexible load automatic power control service compensation calculation method and system, belonging to the technical field of power system frequency control. Background Art

[0002] With the continuous large-scale grid connection of centralized and distributed renewable energy, the operation mode of the power grid has undergone drastic changes, and the overall regulation capacity of the power grid has become increasingly lacking, which is reflected in the increasing pressure on power grid peak regulation and the increasingly limited space for the power grid to accept renewable energy. It is urgent to introduce some new regulation resources, especially industrial flexible load resources, to increase the regulation capacity of the power grid on the one hand, and to improve the efficiency of power grid regulation by load shifting to reduce peaks and fill valleys on the other hand. After the industrial flexible load participates in the control of the power grid master station, in order to ensure that the relevant markets involved in the industrial flexible load can be carried out fairly and orderly, it is necessary to first ensure that the regulation contribution of the industrial flexible load participating in the peak and frequency regulation process of the power grid can be reasonably compensated, and propose compensation indicators for the regulation contribution of the industrial flexible load participating in the closed-loop control regulation process of the master station.

[0003] At present, the assessment and compensation methods for conventional units participating in grid frequency control mainly include regulation rate, regulation accuracy, response time and regulation depth. These indicators are used to calculate the regulation capacity and regulation contribution of the unit. However, this type of calculation method has high requirements for the regulation process. Secondly, this calculation method has a large relationship with the input parameters of the unit. The calculation process is greatly affected by the unit instructions. The number and size of instructions will affect the calculation results. This type of algorithm is mainly suitable for the assessment and evaluation of the deterministic regulation process of conventional hydro-thermal power units. However, when industrial flexible loads participate in grid automatic control, the regulation capacity, regulation rate and regulation instruction size will change with the current operating state of the industrial flexible load. Therefore, the evaluation method of the traditional unit regulation process is no longer suitable for the evaluation of the flexible load regulation process. It is necessary to propose new assessment and compensation indicators that adapt to the regulation contribution of industrial flexible load operation characteristics. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide an industrial flexible load automatic power control service compensation calculation method and system that can fairly evaluate, reasonably compensate and assess the participation of industrial flexible loads in master station control.

[0005] Technical solution: The present invention provides an industrial flexible load automatic power control service compensation calculation method, comprising:

[0006] (1) For each industrial flexible load that independently participates in the control of the master station, a model is built in the automatic power control system APC of the power grid master station in the form of an equivalent unit; historical sampling data of the virtual unit of the industrial flexible load is collected and written into the historical database;

[0007] (2) Perform data quality verification on historical sampling data;

[0008] (3) Calculating the basic data of control service compensation, the APC service assessment index, and the peak load contribution correlation coefficient index based on the verified historical sampling data; the APC service assessment index includes: the available capacity accuracy index and the regulation accuracy qualification rate index;

[0009] (4) calculating the industrial flexible load regulation contribution value coefficient according to the control mode in which the industrial flexible load participates in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode;

[0010] (5) Calculating the compensation for industrial flexible load participating in the APC control service assessment of the master station, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation, and APC service contribution compensation;

[0011] (6) Based on the control service compensation basic data and APC service assessment indicators, an assessment of industrial flexible loads is carried out to obtain daily industrial flexible load compensation and assessment results; the assessment includes an operation stability assessment and a regulation qualification assessment.

[0012] Furthermore, the step (2) comprises:

[0013] Verify data integrity; when the ratio of missing data and abnormal data quality in a certain period is greater than a preset percentage, the data integrity rate in this period is determined to be abnormal, and the adjustment process in this period does not participate in the adjustment compensation calculation;

[0014] Verify data pass rate; when the deviation between the master station telemetry data and the field sampling data within a certain period exceeds the preset threshold, the data verification within this period is determined to be abnormal, and the adjustment process within this period does not participate in the adjustment compensation calculation.

[0015] Furthermore, the calculation control service compensation basic data in step (3) includes:

[0016] Calculate the APC available time, which is the time that the industrial flexible load is capable of participating in the automatic control of the master station. The calculation method of the APC available time is to determine that the APC is in an available state after the industrial flexible load sends an APC available signal to the dispatching master station, and the total available time accumulated daily;

[0017] Calculate the regulation depth, where the regulation depth is the sum of the power regulation changes actually performed after the industrial flexible load receives the control instruction assigned by the power grid dispatching master station;

[0018] Calculate regulation performance indicators, wherein the regulation performance indicators include regulation delay time and regulation rate;

[0019] The adjustment delay time is the time difference between when the master station issues a control instruction and when the industrial flexible load responds and is fed back to the dispatching master station;

[0020] The adjustment rate is the ratio of the maximum adjustment amount of the industrial flexible load towards the adjustment target direction to the adjustment time. The adjustment time is the time from the adjustment delay moment to the end moment of the adjustment instruction. The adjustment rate T Ps The calculation formula is:

[0021]

[0022]

[0023] Where: ΔR is the maximum adjustment amount of the industrial flexible load in a single adjustment command adjustment process, Δt is the adjustment time of the adjustment command, S i is the adjustment rate of a single instruction, N a The total number of adjustment instructions for the day;

[0024] The adjustment accuracy index is calculated. The adjustment accuracy is calculated by first calculating the minimum adjustment deviation according to each instruction, and then calculating the average value of the daily adjustment deviation.

[0025] Furthermore, in the calculation of the APC service assessment index in step (3),

[0026] The available capacity accuracy index is the ratio of the reported adjustment range of the industrial flexible load to the actual adjustment range K R ;

[0027] The regulation accuracy qualification rate index is the ratio of the regulation accuracy reported by the industrial flexible load to the accuracy actually calculated by the master station. c .

[0028] Furthermore, the peak load contribution correlation coefficient index in step (3) is a mathematical correlation between the output change of the industrial flexible load and the grid load, and a correlation calculation point is calculated for each period of one hour.

[0029] Furthermore, in the control method described in step (4),

[0030] In the peak-shaving mode, the contribution of industrial flexible loads to automatic power control is used to reflect the magnitude of the reverse characteristic between the actual load curve and the actual load of the power grid, and is characterized by the peak-shaving contribution correlation coefficient index;

[0031] In the frequency regulation mode, the contribution of industrial flexible loads to automatic power control is used to reflect the back-and-forth adjustment of tracking control instructions, which is characterized by the adjustment depth, and the correlation coefficient of the contribution to peak regulation during the period of participating in the power grid frequency regulation is calculated.

[0032] Furthermore, the calculation of the industrial flexible load regulation contribution value coefficient in step (4) includes:

[0033]

[0034] Where: K a is the APC availability rate for the day, K h is the qualified rate of data verification on that day, K w is the data integrity rate for the day. When the control mode of the industrial flexible load participating in the automatic control of the master station is the peak load regulation mode, K r It is the peak load contribution correlation coefficient index, which is used to indicate the correlation coefficient between the aggregated load curve and the whole network load during the business period of the day. When the industrial flexible load participates in the control mode of the master station automatic control in frequency regulation mode, K r Set to -1.

[0035] Furthermore, the APC service availability compensation in step (5) is compensated according to the APC available time, and the calculation method is:

[0036] For industrial flexible loads that support APC control, if the APC availability rate reaches above the preset percentage, economic compensation will be given according to the APC available time compensation;

[0037] The APC service contribution compensation is differentiated according to the degree of participation in the master station APC control, and is compensated according to the product of the adjustment depth, adjustment assessment and adjustment performance. The compensation fee is calculated on a daily basis and the calculation method is as follows:

[0038] P d =K s ×D×[ln(K p )+1]×Y APC (4)

[0039] Where: P d is the daily compensation cost, K s Industrial flexible load regulation contribution value coefficient, D is the regulation depth, K p is the regulation performance index of industrial flexible load, Y APC To compensate for the base price, this price is set differently depending on the resource type.

[0040] Furthermore, the data stability assessment in step (6) is calculated once a day. For data in any time period, if the data integrity check or data qualification rate check in the time period fails, it is considered that the measurement in the time period is abnormal. If the total duration of the abnormal time period in a period exceeds the preset duration, it is considered that the data stability of the day is insufficient, and the data sent by the aggregator cannot support its participation in automatic power control, and the industrial flexible load needs to be assessed.

[0041] The regulation qualification assessment includes APC available time assessment, available capacity accuracy rate and regulation precision qualification rate assessment, which are calculated once a day; if the APC available time of the industrial flexible load on that day is less than the preset ratio of the market declaration time, an APC available time deficiency assessment is recorded; if the available capacity accuracy rate index on that day is less than the preset ratio of the market declaration value, an available capacity accuracy rate assessment is recorded; if the regulation precision qualification rate index of the industrial flexible load on that day is lower than the preset ratio of the market declaration value, an regulation precision qualification rate assessment is recorded;

[0042] The industrial flexible load assessment result is shown in the following formula:

[0043] M=Y d ×M d +Y a ×M a +Y c ×M c +Y p ×M p (5)

[0044] Where: M is the daily industrial flexible load assessment result, Y d The unit price for operation stability assessment is M d Indicates whether the person is being assessed on that day. If yes, it is 1; otherwise, it is 0. a APC is the available time assessment fee, M a Whether the APC available time assessment is subject to assessment, if it is assessed, it is 1, otherwise it is 0; Y c is the available capacity accuracy assessment fee, M c Whether the available capacity accuracy assessment is subject to assessment, if it is assessed, it is 1, otherwise it is 0; Y p To adjust the accuracy qualification rate assessment fee, M p To adjust whether the accuracy pass rate is subject to assessment, if it is assessed, it is 1, otherwise it is 0.

[0045] Based on the same inventive concept, the present invention also provides an industrial flexible load automatic power control service compensation calculation system, comprising:

[0046] The initialization module is used to model each industrial flexible load that independently participates in the control of the master station in the automatic power control system APC of the power grid master station in the form of an equivalent unit; collect and obtain the historical sampling data of the virtual unit of the industrial flexible load and write it into the historical database; the master station controls the input status, control mode, actual power and control target;

[0047] Verification module, used to verify the data quality of historical sampling data;

[0048] An indicator calculation module is used to calculate the control service compensation basic data, the APC service assessment indicators, and the peak load contribution correlation coefficient indicators according to the verified historical sampling data; the APC service assessment indicators include: available capacity accuracy rate indicators and regulation accuracy qualification rate indicators;

[0049] A parameter calculation module, used to calculate the industrial flexible load regulation contribution value coefficient according to the control mode of the industrial flexible load participating in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode;

[0050] A compensation calculation module, used to calculate the industrial flexible load participating in the master station APC control service assessment compensation, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation and APC service contribution compensation;

[0051] The assessment module is used to carry out assessment of industrial flexible loads based on control service compensation basic data and APC service assessment indicators, and obtain daily industrial flexible load compensation and assessment results; the assessment includes operation stability assessment and regulation qualification assessment.

[0052] Beneficial effect: Compared with the prior art, the present invention realizes the operation of a compensation method for the need to accurately calculate the contribution of industrial flexible load regulation after a large number of low-capacity, decentralized industrial flexible load resources are aggregated to participate in the peak-shaving and frequency-regulation control of the power grid, and proposes an industrial flexible load automatic power control service compensation calculation method to ensure that industrial flexible loads can be fairly evaluated, reasonably compensated and assessed after participating in the control of the main station, and support industrial flexible loads to participate in the unified peak-shaving and frequency-regulation auxiliary service market of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The figure is a flow chart of a method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0055] As attached Figure 1 As shown, the industrial flexible load automatic power control service compensation calculation method of this embodiment includes:

[0056] (1) For each industrial flexible load that independently participates in the control of the master station, a model is built in the automatic power control system APC of the power grid master station in the form of an equivalent unit; historical sampling data of the virtual unit of the industrial flexible load is collected and written into the historical database;

[0057] (2) Perform data quality verification on historical sampling data;

[0058] (3) Calculating the basic data of control service compensation, the APC service assessment index, and the peak load contribution correlation coefficient index based on the verified historical sampling data; the APC service assessment index includes: the available capacity accuracy index and the regulation accuracy qualification rate index;

[0059] (4) calculating the industrial flexible load regulation contribution value coefficient according to the control mode in which the industrial flexible load participates in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode;

[0060] (5) Calculating the compensation for industrial flexible load participating in the APC control service assessment of the master station, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation, and APC service contribution compensation;

[0061] (6) Based on the control service compensation basic data and APC service assessment indicators, an assessment of industrial flexible loads is carried out to obtain daily industrial flexible load compensation and assessment results; the assessment includes an operation stability assessment and a regulation qualification assessment.

[0062] In this embodiment, the industrial flexible load is equivalent to a load-side resource virtual machine group, and the adjustment process of the virtual machine group is achieved by the industrial flexible load controlling a single load-side resource, ultimately achieving response to the peak and frequency regulation control requirements of the power grid.

[0063] First, a sampling point is recorded every 3 seconds, with a total of 20 data sampling points per minute to record the master station control input status, control mode, actual power and control target of the load-side resource virtual machine group, and write them into the historical sampling library. Taking each minute as a statistical period, the industrial flexible load regulation data is first verified for data quality, including data integrity verification and data qualification rate verification.

[0064] After verification, the basic data of industrial flexible load participating in the main station control service compensation are calculated based on these sampling data, including APC available time, regulation depth and regulation performance indicators.

[0065] Then, the APC service assessment indicators are calculated based on the service compensation basic data, including: available capacity accuracy index and regulation accuracy qualification rate index;

[0066] The next step is to calculate the correlation between the output change of industrial flexible load and the grid load. One correlation calculation point is calculated for each period every hour as the peak load contribution correlation coefficient indicator.

[0067] Then, the industrial flexible load regulation contribution value coefficient is calculated according to the different automatic control modes of the main station in which the industrial flexible load participates. The contribution of the industrial flexible load to the automatic power control in the peak-shaving mode is mainly reflected in the inverse characteristics of the actual load curve and the actual load of the power grid, which is characterized by the peak-shaving contribution correlation coefficient index; in the frequency regulation mode, the contribution of the industrial flexible load to the automatic power control is mainly reflected in the back-and-forth adjustment of the tracking control instructions, which is mainly characterized by the depth of regulation, and the correlation coefficient of the peak-shaving contribution is calculated during the period of participating in the power grid frequency regulation;

[0068] Then, the assessment and compensation results of industrial flexible load participating in the master station APC control service were obtained from three aspects: APC service assessment compensation, APC service availability compensation and APC service contribution compensation.

[0069] Finally, based on the results of operation stability assessment and regulation qualification assessment, the daily industrial flexible load assessment results are obtained.

[0070] Specifically, in step (1), for the historical sampling data in the historical database, the industrial flexible load regulation data is first verified for data quality, including data integrity verification and data qualification rate verification. When more than 10% of the data within 1 minute is missing or the data quality is abnormal, the data integrity rate within the minute is considered abnormal, and the minute does not participate in the regulation compensation calculation. When the deviation between the master station telemetry data and the field sampling data within the minute exceeds a certain threshold, the data verification is considered abnormal, and the measurement data of the minute participates in the regulation compensation calculation;

[0071] In step (2), for the historical sampling data in the historical database, the industrial flexible load adjustment data is firstly verified for data quality, including:

[0072] (21) Data integrity check: If more than 10% of the data within one minute is missing or the data quality is abnormal, the data integrity rate within that minute is considered abnormal, and the adjustment process of that minute will not be included in the adjustment compensation calculation.

[0073] (22) Data qualification rate verification. When the deviation between the master station telemetry data and the field sampling data within a minute exceeds a certain threshold, the data verification is considered abnormal, and the adjustment process of that minute does not participate in the adjustment compensation calculation.

[0074] In step (3), based on the historical sampling data of industrial flexible loads, the control service compensation basic data are calculated respectively;

[0075] APC available time. APC available time is defined as the time that the industrial flexible load is capable of participating in the automatic control of the master station, in seconds. After the industrial flexible load can be put into the closed-loop control of the master station at any time, it can send an APC available signal to the dispatching master station. The calculation method of APC available time is that after the industrial flexible load sends the APC available signal to the dispatching master station, the APC is judged to be in an available state, and a total available time is accumulated every day.

[0076] Regulation depth: Regulation depth is defined as the total amount of power regulation changes actually performed by industrial flexible loads after receiving control instructions from the power grid dispatching master station, in MW.

[0077] Adjustment performance indicators. Adjustment performance indicators include adjustment delay time and adjustment rate indicators;

[0078] The regulation delay time mainly refers to the time difference between the master station sending out the control command and the industrial flexible load responding and feeding back to the dispatching master station.

[0079] The adjustment rate index is the ratio of the maximum adjustment amount of the industrial flexible load to the adjustment time in the direction of the adjustment target, from the adjustment delay time to the end time of the adjustment command. The calculation formula is:

[0080]

[0081] Where: ΔR is the maximum adjustment amount of the industrial flexible load in a single adjustment command adjustment process, Δt is the adjustment time of the adjustment command, S i is the adjustment rate of a single instruction, N a It is the total number of adjustment instructions for the day.

[0082] Adjustment accuracy index. The calculation method of industrial flexible load adjustment accuracy is to first calculate the minimum adjustment deviation according to each instruction, and then calculate the average value of the daily adjustment deviation.

[0083] Calculate APC service assessment indicators, including: available capacity accuracy index, regulation accuracy qualification rate index;

[0084] The available capacity accuracy index is defined as the ratio of the reported regulation range of industrial flexible load to the actual regulation range K R ;

[0085] The regulation accuracy qualification rate index is defined as the ratio of the regulation accuracy reported by the industrial flexible load to the accuracy actually calculated by the master station. c ;

[0086] Calculate the peak load contribution correlation coefficient index K r The peak load contribution correlation index is defined as the mathematical correlation between the output change of industrial flexible load and the grid load, and one correlation calculation point is calculated for one period every hour.

[0087] In step (4), the control methods of the industrial flexible load participating in the automatic control of the master station include peak regulation and frequency regulation.

[0088] In the peak load regulation mode, the contribution of industrial flexible load to automatic power control is mainly reflected in the reverse characteristic of the actual load curve and the actual load of the power grid, which is characterized by the peak load regulation contribution correlation coefficient index;

[0089] In the frequency regulation mode, the contribution of industrial flexible loads to automatic power control is mainly reflected in the back-and-forth adjustment of tracking control instructions, which is mainly characterized by the adjustment depth, and the correlation coefficient of the peak load contribution during the period of participating in the power grid frequency regulation is calculated;

[0090] The calculation method of the industrial flexible load regulation contribution value coefficient is as follows:

[0091] K s =Ka×Kh×Kw×(1-Kr) / 2 (3)

[0092] Where: Ka is the APC availability rate of the day, Kh is the data verification pass rate of the day, Kw is the data integrity rate of the day, Kr of the industrial flexible load object participating in the peak regulation of the power grid is the correlation coefficient between the aggregated load curve of the business time period participating in the regulation and control on the day and the load of the entire network, and Kr of the industrial flexible load object participating in the power grid frequency regulation is set to -1.

[0093] In step (5), the industrial flexible load participates in the master station APC control service assessment compensation, which is divided into three parts: APC service assessment index, APC service availability compensation and APC service contribution compensation;

[0094] Service availability compensation is made according to APC available time. The compensation calculation method is to support industrial flexible load controlled by APC. If the APC availability rate reaches above 98%, economic compensation is given according to APC available time compensation (for example, basic compensation is calculated at 10 yuan / hour). The APC available time compensation fee is calculated on a monthly basis.

[0095] Industrial flexible loads with APC regulation capability are differentiated according to the degree of participation in the master station APC control. Compensation is made according to the product of regulation depth, regulation assessment and regulation performance. The compensation fee is calculated on a daily basis and the calculation method is as follows:

[0096] P d =K s ×D×[ln(K p )+1]×Y APC (4)

[0097] Where: P d is the daily compensation cost, K sIndustrial flexible load regulation contribution value coefficient, D is the regulation depth, K p is the regulation performance index of industrial flexible load, Y APC To compensate for the base price, this price is set differently depending on the resource type.

[0098] In step (6), based on the basic data of service compensation and the APC service assessment indicators, the assessment of industrial flexible load is carried out simultaneously, and the assessment is divided into two parts: operation stability assessment and regulation qualification assessment;

[0099] The data stability assessment is calculated once a day. For any 1-minute data, if the data integrity check or data qualification rate check fails, the minute measurement is considered abnormal. If the number of abnormal minute data exceeds a certain threshold (for example, 100 minutes) every day, the data stability of the day is considered insufficient, and the data sent by the aggregator cannot support its participation in automatic power control, and the industrial flexible load needs to be assessed.

[0100] The regulation qualification assessment is divided into APC available time assessment, available capacity accuracy rate and regulation precision qualification rate assessment, which are calculated once a day. If the APC available time of the industrial flexible load on that day is less than a certain ratio of the market declared time (for example, 0.8), an APC available time deficiency assessment will be recorded; if the available capacity accuracy rate index on that day is less than a certain ratio of the market declared value (for example, 0.8), an available capacity accuracy assessment will be recorded. If the regulation precision qualification rate index of the industrial flexible load on that day is lower than a certain ratio of the market declared value (for example, 0.8), a regulation precision qualification rate assessment will be recorded;

[0101] Based on the results of the operation stability assessment and the regulation qualification assessment, the daily industrial flexible load assessment results are obtained, as shown in the following formula:

[0102] M=Y d ×M d +Y a ×M a +Y c ×M c +Y p ×M p (5)

[0103] Where: M is the daily industrial flexible load assessment result, Y d Unit price for operation stability assessment (10,000 yuan / time) M d Indicates whether the day is under assessment, if yes, it is 1, otherwise, it is 0. a M is the APC available time assessment fee (10,000 yuan / time), a Indicates whether the APC available time assessment is subject to assessment, if it is assessed, it is 1, otherwise it is 0. cis the available capacity accuracy assessment fee (10,000 yuan / time), M c Indicates whether the available capacity accuracy assessment is subject to assessment. If it is assessed, it is 1, otherwise it is 0. p is the adjustment accuracy qualification rate assessment fee (10,000 yuan / time), M p To adjust whether the accuracy pass rate is subject to assessment, if it is assessed, it is 1, otherwise it is 0.

[0104] Based on the same inventive concept, this embodiment also provides an industrial flexible load automatic power control service compensation calculation system, including:

[0105] The initialization module is used to model each industrial flexible load that independently participates in the control of the master station in the automatic power control system APC of the power grid master station in the form of an equivalent unit; collect and obtain the historical sampling data of the virtual unit of the industrial flexible load and write it into the historical database; the master station controls the input status, control mode, actual power and control target;

[0106] Verification module, used to verify the data quality of historical sampling data;

[0107] An indicator calculation module is used to calculate the control service compensation basic data, the APC service assessment indicators, and the peak load contribution correlation coefficient indicators according to the verified historical sampling data; the APC service assessment indicators include: available capacity accuracy rate indicators and regulation accuracy qualification rate indicators;

[0108] A parameter calculation module, used to calculate the industrial flexible load regulation contribution value coefficient according to the control mode of the industrial flexible load participating in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode;

[0109] A compensation calculation module, used to calculate the industrial flexible load participating in the master station APC control service assessment compensation, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation and APC service contribution compensation;

[0110] The assessment module is used to carry out assessment of industrial flexible loads based on control service compensation basic data and APC service assessment indicators, and obtain daily industrial flexible load compensation and assessment results; the assessment includes operation stability assessment and regulation qualification assessment.

[0111] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0112] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0113] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0114] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0115] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

Claims

1. A method for calculating compensation for industrial flexible load automatic power control service, characterized in that: include: (1) For each industrial flexible load that independently participates in the control of the master station, a model is built in the automatic power control system APC of the power grid master station in the form of an equivalent unit; historical sampling data of the virtual unit of the industrial flexible load is collected and written into the historical database; (2) Perform data quality verification on historical sampling data; (3) Based on the verified historical sampling data, calculate the basic data of control service compensation, calculate the APC service assessment index, and calculate the peak load contribution correlation coefficient index; The APC service assessment indicators include: available capacity accuracy index and regulation accuracy qualification rate index; (4) calculating the industrial flexible load regulation contribution value coefficient according to the control mode in which the industrial flexible load participates in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode; (5) Calculating the compensation for industrial flexible load participating in the APC control service assessment of the master station, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation, and APC service contribution compensation; (6) Based on the control service compensation basic data and APC service assessment indicators, an assessment of industrial flexible loads is carried out to obtain daily industrial flexible load compensation and assessment results; the assessment includes an operation stability assessment and a regulation qualification assessment.

2. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: The step (2) comprises: Verify data integrity; when the ratio of missing data and abnormal data quality in a certain period is greater than a preset percentage, the data integrity rate in this period is determined to be abnormal, and the adjustment process in this period does not participate in the adjustment compensation calculation; Verify data pass rate; when the deviation between the master station telemetry data and the field sampling data within a certain period exceeds the preset threshold, the data verification within this period is determined to be abnormal, and the adjustment process within this period does not participate in the adjustment compensation calculation.

3. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: The calculation control service compensation basic data in step (3) includes: Calculate the APC available time, which is the time that the industrial flexible load is capable of participating in the automatic control of the master station. The calculation method of the APC available time is to determine that the APC is in an available state after the industrial flexible load sends an APC available signal to the dispatching master station, and the total available time accumulated daily; Calculate the regulation depth, where the regulation depth is the sum of the power regulation changes actually performed after the industrial flexible load receives the control instruction assigned by the power grid dispatching master station; Calculate regulation performance indicators, wherein the regulation performance indicators include regulation delay time and regulation rate; The adjustment delay time is the time difference between when the master station issues a control instruction and when the industrial flexible load responds and is fed back to the dispatching master station; The adjustment rate is the ratio of the maximum adjustment amount of the industrial flexible load towards the adjustment target direction to the adjustment time. The adjustment time is the time from the adjustment delay moment to the end moment of the adjustment instruction. The adjustment rate T Ps The calculation formula is: Where: ΔR is the maximum adjustment amount of the industrial flexible load in a single adjustment command adjustment process, Δt is the adjustment time of the adjustment command, S i is the adjustment rate of a single instruction, N a The total number of adjustment instructions for the day; The adjustment accuracy index is calculated. The adjustment accuracy is calculated by first calculating the minimum adjustment deviation according to each instruction, and then calculating the average value of the daily adjustment deviation.

4. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: In the calculation of the APC service assessment index in step (3), The available capacity accuracy index is the ratio of the reported adjustment range of industrial flexible load to the actual adjustment range K R ; The regulation accuracy qualification rate index is the ratio of the regulation accuracy reported by the industrial flexible load to the accuracy actually calculated by the master station. c .

5. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: The peak load contribution correlation coefficient index in step (3) is the mathematical correlation between the output change of the industrial flexible load and the grid load, and a correlation calculation point is calculated for each period of one hour.

6. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: In the control method described in step (4), In the peak-shaving mode, the contribution of industrial flexible loads to automatic power control is used to reflect the magnitude of the reverse characteristic between the actual load curve and the actual load of the power grid, and is characterized by the peak-shaving contribution correlation coefficient index; In the frequency regulation mode, the contribution of industrial flexible loads to automatic power control is used to reflect the back-and-forth adjustment of tracking control instructions, which is characterized by the adjustment depth, and the correlation coefficient of the contribution to peak regulation during the period of participating in the power grid frequency regulation is calculated.

7. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: The calculation of the industrial flexible load regulation contribution value coefficient in step (4) includes: Where: K a is the APC availability rate for the day, K h is the qualified rate of data verification on that day, K w is the data integrity rate for the day. When the control mode of the industrial flexible load participating in the automatic control of the master station is the peak load regulation mode, K r It is the peak load contribution correlation coefficient index, which is used to indicate the correlation coefficient between the aggregated load curve and the whole network load during the business period of the day. When the industrial flexible load participates in the control mode of the master station automatic control in frequency regulation mode, K r Set to -1.

8. The industrial flexible load automatic power control service compensation calculation method according to claim 1 is characterized in that: The APC service availability compensation in step (5) is compensated according to the APC available time, and the calculation method is: For industrial flexible loads that support APC control, if the APC availability rate reaches above the preset percentage, economic compensation will be given according to the APC available time compensation; The APC service contribution compensation is differentiated according to the degree of participation in the master station APC control, and is compensated according to the product of the adjustment depth, adjustment assessment and adjustment performance. The compensation fee is calculated on a daily basis and the calculation method is as follows: P d =K s ×D×[ln(K p )+1]×Y APC (4) Where: P d is the daily compensation cost, K s Industrial flexible load regulation contribution value coefficient, D is the regulation depth, K p is the regulation performance index of industrial flexible load, Y APC To compensate for the base price, this price is set differently depending on the resource type.

9. The industrial flexible load automatic power control service compensation calculation method according to claim 1, characterized in that: The data stability assessment in step (6) is calculated once a day. For data in any time period, if the data integrity check or data qualification rate check in the time period fails, it is considered that the measurement in the time period is abnormal. If the total duration of abnormal time periods in a period of time exceeds the preset duration, it is considered that the data stability of the day is insufficient, and the data sent by the aggregator cannot support its participation in automatic power control, and the industrial flexible load needs to be assessed. The regulation qualification assessment includes APC available time assessment, available capacity accuracy rate and regulation precision qualification rate assessment, which are calculated once a day; if the APC available time of the industrial flexible load on that day is less than the preset ratio of the market declaration time, an APC available time deficiency assessment is recorded; if the available capacity accuracy rate index on that day is less than the preset ratio of the market declaration value, an available capacity accuracy rate assessment is recorded; if the regulation precision qualification rate index of the industrial flexible load on that day is lower than the preset ratio of the market declaration value, an regulation precision qualification rate assessment is recorded; The industrial flexible load assessment result is shown in the following formula: M=Y d ×M d +Y a ×M a +Y c ×M c +Y p ×M p (5) Where: M is the daily industrial flexible load assessment result, Y d The unit price for operation stability assessment is M d Indicates whether the person is being assessed on that day. If yes, it is 1, otherwise it is 0; Y a APC is the available time assessment fee, M a Indicates whether the APC available time assessment is subject to assessment, if it is assessed, it is 1, otherwise it is 0; Y c is the available capacity accuracy assessment fee, M c Whether the available capacity accuracy assessment is subject to assessment, if it is assessed, it is 1, otherwise it is 0; Y p To adjust the accuracy qualification rate assessment fee, M p To adjust whether the accuracy pass rate is subject to assessment, if it is assessed, it is 1, otherwise it is 0.

10. An industrial flexible load automatic power control service compensation calculation system, characterized in that: include: The initialization module is used to model each industrial flexible load that independently participates in the control of the master station in the automatic power control system APC of the power grid master station in the form of an equivalent unit; collect and obtain the historical sampling data of the virtual unit of the industrial flexible load and write it into the historical database; the master station controls the input status, control mode, actual power and control target; Verification module, used to verify the data quality of historical sampling data; The indicator calculation module is used to calculate the basic data of control service compensation, the APC service assessment index, and the peak load contribution correlation coefficient index based on the verified historical sampling data; The APC service assessment indicators include: available capacity accuracy index and regulation accuracy qualification rate index; A parameter calculation module, used to calculate the industrial flexible load regulation contribution value coefficient according to the control mode of the industrial flexible load participating in the automatic control of the master station, wherein the control mode includes a peak regulation mode and a frequency regulation mode; A compensation calculation module, used to calculate the industrial flexible load participating in the master station APC control service assessment compensation, wherein the APC control service assessment compensation includes APC service assessment indicators, APC service availability compensation and APC service contribution compensation; The assessment module is used to carry out assessment of industrial flexible loads based on control service compensation basic data and APC service assessment indicators, and obtain daily industrial flexible load compensation and assessment results; the assessment includes operation stability assessment and regulation qualification assessment.

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