Method and apparatus for spinning reserve capacity allocation

Abstract

A method and apparatus for configuring spinning contingency reserve capacity are disclosed. The method includes: obtaining the difference between the active power deficit shared by the secondary control area and the spinning contingency reserve reserved for the secondary control area in response to a fault, based on the maximum active power deficit caused by a fault in the primary control area and the generation load ratio of the secondary control area to the primary control area; thereby obtaining the active power deficit shared by the secondary control area, the spinning contingency reserve capacity of the secondary control area, and the spinning contingency reserve capacity of the primary control area. The method and apparatus provided by this invention enable the power system's contingency reserve configuration to meet both the requirements of system operational safety and economy.

Description

Technical Field

[0001] This invention relates to the field of power system technology, and more specifically, to a method and apparatus for configuring spinning fault reserve capacity. Background Technology

[0002] Properly configuring power system contingency reserves is fundamental to ensuring the safe operation of new power systems in scenarios with a high proportion of clean energy grid integration and large-capacity DC feed-in. Currently, most domestic power grid companies follow the requirements of the "Technical Guidelines for Power Systems" in selecting contingency reserve capacity, which stipulates that it should be selected as a fixed proportion of the maximum generating load, typically 10% of the maximum generating load, of which about 50% is the spinning contingency reserve capacity that can automatically activate when the frequency deviates from the normal range. With the rapid development of my country's interconnected power grid and the continuous expansion of the system scale, especially with the increasing proportion of AC / DC power transmission and reception in large interconnected power grids, and the frequent fluctuations in the level of high-penetration renewable energy generation, empirical values ​​are insufficient to account for the characteristics and differences of new power systems, and it is also difficult to comprehensively and multidimensionally meet the actual minimum spinning contingency reserve requirements of the system, thus significantly impacting the economic efficiency of power system operation. Summary of the Invention

[0003] In view of this, the present invention proposes a method and apparatus for configuring standby capacity in the event of a spinning accident, aiming to solve the above-mentioned technical problems.

[0004] In a first aspect, embodiments of the present invention provide a method for configuring spinning contingency reserve capacity, applied to a large-capacity DC feed-in system. The method includes: obtaining the maximum active power deficit caused by a fault in the primary control area and the generation load ratio of the secondary control area to the primary control area; based on the maximum active power deficit caused by the fault in the primary control area and the generation load ratio of the secondary control area to the primary control area, obtaining the difference between the active power deficit shared by the secondary control area and the spinning contingency reserve reserved for its fault; based on the difference between the active power deficit shared by the secondary control area and the spinning contingency reserve reserved for its fault, obtaining the active power difference shared by the secondary control area; based on the active power difference shared by the secondary control area and the maximum active power deficit caused by the fault in the secondary control area, obtaining the spinning contingency reserve capacity of the secondary control area; and based on the spinning contingency reserve of the secondary control area and the difference between the active power deficit shared by the secondary control area and the spinning contingency reserve reserved for its fault, obtaining the spinning contingency reserve capacity of the primary control area.

[0005] Furthermore, based on the maximum active power deficit caused by the design failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area, the difference between the active power deficit borne by the secondary control area and the spinning contingency reserve reserved for its design failure is obtained, including: obtaining the active power deficit borne by the secondary control area based on the maximum active power deficit caused by the design failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area; and obtaining the difference between the active power deficit borne by the secondary control area and the spinning contingency reserve reserved for its design failure based on the active power deficit borne by the secondary control area.

[0006] Furthermore, based on the maximum active power deficit caused by the first-level control area's defense failure and the power generation load ratio of the second-level control area to the first-level control area, the active power deficit borne by the second-level control area is obtained, including: allocating the maximum active power deficit caused by the first-level control area's defense failure according to the power generation load ratio of the second-level control area to obtain the active power deficit borne by the second-level control area.

[0007] Furthermore, the maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area, including: the active power deficit R borne by the secondary control area is obtained using the following formula. i :

[0008] R i =k i ×R;

[0009] Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

[0010] Furthermore, based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the spinning fault reserve reserved for it is obtained, including: obtaining the difference ΔR between the active power deficit shared by the secondary control area and the spinning fault reserve reserved for it using the following formula. i :

[0011] ΔR i =max(0, R) i -R Si );

[0012] Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

[0013] Furthermore, based on the difference between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for it, the active power difference shared by the secondary control area is obtained, including: obtaining the active power difference ΔR shared by the secondary control area using the following formula. Si :

[0014] ΔR Si =α i ×β i ×ΔR i ;

[0015] Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

[0016] Furthermore, based on the active power difference shared by the secondary control area and the maximum active power deficit caused by a secondary control area fault, the spinning emergency reserve capacity of the secondary control area is obtained, including: obtaining the spinning emergency reserve capacity R of the secondary control area using the following formula. Si ':

[0017] R Si ′=R Si +ΔR Si ;

[0018] Among them, R Si The maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

[0019] Furthermore, based on the difference between the spinning fault reserve of the secondary control area and the active power deficit shared by the secondary control area and the spinning fault reserve reserved for its design fault, the spinning fault reserve capacity of the primary control area is obtained, including: obtaining the spinning fault reserve capacity R of the primary control area using the following formula. S :

[0020] R S =∑R Si ′+∑α i ×(1-β i )×ΔR i ;

[0021] Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' iThe difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

[0022] Secondly, embodiments of the present invention also provide a device for configuring spinning fault reserve capacity, applied to a large-capacity DC feed-in system. The device includes: an acquisition unit for acquiring the maximum active power deficit caused by a fault in the primary control area and the generation load ratio of the secondary control area to the primary control area; a first processing unit for obtaining, based on the maximum active power deficit caused by the fault in the primary control area and the generation load ratio of the secondary control area to the primary control area, the difference between the active power deficit shared by the secondary control area and the spinning fault reserve reserved for it; and a second processing unit. The first processing unit is used to obtain the active power deficit of the second-level control area based on the difference between the active power deficit shared by the second-level control area and the spinning emergency reserve reserved for its protection fault; the second processing unit is used to obtain the spinning emergency reserve capacity of the second-level control area based on the active power deficit shared by the second-level control area and the maximum active power deficit caused by the protection fault of the second-level control area; the third processing unit is used to obtain the spinning emergency reserve capacity of the first-level control area based on the spinning emergency reserve of the second-level control area and the difference between the active power deficit shared by the second-level control area and the spinning emergency reserve reserved for its protection fault.

[0023] Furthermore, the first processing unit is also configured to: obtain the active power deficit of the secondary control area based on the maximum active power deficit caused by the first-level control area's defense failure and the proportion of the secondary control area's power generation load to the first-level control area; and obtain the difference between the active power deficit of the secondary control area and the rotating fault reserve reserved by the secondary control area based on the active power deficit of the secondary control area.

[0024] Furthermore, based on the maximum active power deficit caused by the first-level control area's defense failure and the power generation load ratio of the second-level control area to the first-level control area, the active power deficit borne by the second-level control area is obtained, including: allocating the maximum active power deficit caused by the first-level control area's defense failure according to the power generation load ratio of the second-level control area to obtain the active power deficit borne by the second-level control area.

[0025] Furthermore, the maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area, including: the active power deficit R borne by the secondary control area is obtained using the following formula. i :

[0026] R i =k i ×R;

[0027] Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

[0028] Furthermore, based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the spinning fault reserve reserved for it is obtained, including: obtaining the difference ΔR between the active power deficit shared by the secondary control area and the spinning fault reserve reserved for it using the following formula. i :

[0029] ΔR i =max(0, R) i -R Si );

[0030] Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

[0031] Furthermore, the second processing unit is also used to: obtain the active power difference ΔR between the secondary control areas using the following formula. Si :

[0032] ΔR Si =α i ×β i ×ΔR i ;

[0033] Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

[0034] Furthermore, the third processing unit is also used to: obtain the secondary control area rotational emergency reserve capacity R using the following formula. Si ':

[0035] R Si ′=R Si +ΔR Si ;

[0036] Among them, R SiThe maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

[0037] Furthermore, the fourth processing unit is also used to: obtain the standby capacity R for a spinning accident in the primary control area using the following formula. S :

[0038] R S =∑R Si ′+∑α i ×(1-β i )×ΔR i ;

[0039] Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

[0040] Thirdly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the methods provided in the above embodiments.

[0041] Fourthly, embodiments of the present invention also provide an electronic device, including: a processor; a memory for storing executable instructions of the processor; the processor being configured to read the executable instructions from the memory and execute the instructions to implement the methods provided in the above embodiments.

[0042] The method and apparatus for configuring spinning contingency reserve capacity provided in this invention can reserve a certain capacity of spinning contingency reserve according to the principle of hierarchical, zoned, and time-based allocation for synchronous power grids with large-capacity DC feedin. This is to cope with power shortages caused by unplanned outages of power generation or transmission and transformation equipment, and to ensure stable system frequency operation after a fault. The method provided in the above embodiments enables the power system contingency reserve configuration to meet both the requirements of system operation safety and economy: firstly, the contingency reserve should be fully deployed within a certain time, and after deployment, it should remain deployed for a certain period to ensure that the minimum transient frequency and recovery frequency after a fault are within an acceptable range; secondly, the contingency reserve capacity and distribution should be rationally configured to avoid wasting power resources and reduce power system operating costs. Attached Figure Description

[0043] Figure 1An exemplary flowchart of a method for configuring spin-off emergency reserve capacity according to an embodiment of the present invention is shown;

[0044] Figure 2 A schematic diagram of a device for configuring a rotational emergency reserve capacity according to an embodiment of the present invention is shown. Detailed Implementation

[0045] Exemplary embodiments of the invention will now be described with reference to the accompanying drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the drawings is not intended to limit the invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0046] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0047] In this embodiment of the invention, abbreviations and key terms are defined as follows:

[0048] Contingency Reserve: The reserve capacity available for use within a specified time (generally considered to be 30 minutes) after a power system accident.

[0049] Spinning reserve: The difference between the maximum active power that a generator set connected to the bus and immediately ready to be loaded can generate and the current operating active power.

[0050] Spinning contingency reserve: A generator set connected to the busbar that can be reliably dispatched within a specified time to cope with the active power shortage caused by unplanned outages of power generation or transmission and transformation equipment.

[0051] Primary control grid: An AC synchronous grid with emergency backup configuration and dispatch control authority, which has no AC channel connection with other AC synchronous grids or has an AC channel connection but no emergency backup support capability. A primary control grid typically consists of several secondary control grids.

[0052] Secondary control grid: An AC synchronous grid with emergency backup configuration scheduling and control authority, and which has AC channels to connect with other power grids and has emergency backup support capabilities.

[0053] Figure 1 An exemplary flowchart of a method for configuring spin-off emergency reserve capacity according to an embodiment of the present invention is shown.

[0054] like Figure 1 As shown, this method, applied to a high-capacity DC-DC feed system, includes:

[0055] Step S101: Obtain the maximum active power deficit caused by the protection failure of the primary control area and the power generation load ratio of the secondary control area to the primary control area.

[0056] Specifically, synchronous power grids with large-capacity DC feeds can be divided into primary control areas and secondary control areas according to the hierarchy of dispatch control authority. A primary control area is an AC synchronous power grid with dispatch control authority for contingency backup configuration, but without AC channel connections to other AC synchronous power grids, or with AC channel connections but without contingency backup support capabilities. Typically, a primary control area consists of several secondary control areas. A secondary control area is an AC synchronous power grid with dispatch control authority for contingency backup configuration, and also with AC channel connections to other power grids and contingency backup support capabilities.

[0057] Step S102: Based on the maximum active power deficit caused by the first-level control area's protection failure and the power generation load ratio of the second-level control area to the first-level control area, obtain the difference between the active power deficit shared by the second-level control area and the rotating fault reserve reserved by it for protection failure.

[0058] Further, step S102 includes:

[0059] Based on the maximum active power deficit caused by the defense failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area, the active power deficit shared by the secondary control area is obtained.

[0060] Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained.

[0061] Furthermore, based on the maximum active power deficit caused by the fault in the primary control area and the proportion of the generation load of the secondary control area to that of the primary control area, the active power deficit shared by the secondary control area is obtained, including:

[0062] The maximum active power deficit caused by a fault in the primary control area is allocated according to the power generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area.

[0063] Furthermore, the maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area to obtain the active power deficit shared by the secondary control area, including:

[0064] The active power deficit R shared by the secondary control area is obtained using the following formula. i :

[0065] R i =k i ×R;

[0066] Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

[0067] Furthermore, based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained, including:

[0068] The difference ΔR between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for it is obtained by the following formula. i :

[0069] ΔR i =max(0, R) i -R Si );

[0070] Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

[0071] Specifically, if the difference between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for its design fault is less than 0, then it is taken as 0.

[0072] Step S103: Based on the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it, the active power deficit shared by the secondary control area is obtained.

[0073] Specifically, the calculated capacity difference is shared by the primary and secondary control areas according to the rotating emergency reserve configuration of the power sources under their jurisdiction, and the insufficient part is supplemented by the non-rotating emergency reserve.

[0074] Further, step S103 includes:

[0075] The active power difference ΔR shared by the two-level control areas is obtained using the following formula. Si :

[0076] ΔR Si =α i ×β i ×ΔR i ;

[0077] Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

[0078] Step S104: Based on the active power difference shared by the secondary control area and the maximum active power deficit caused by the secondary control area's defense failure, obtain the secondary control area's rotating emergency reserve capacity.

[0079] Specifically, the rotational emergency reserve in the secondary control area should be the sum of the difference between the rotational emergency reserve set aside for Class I protection faults and the active power it shares.

[0080] Further, step S104 includes:

[0081] The standby capacity R for a spinning-out accident in the secondary control area is obtained using the following formula. Si ':

[0082] R Si ′=R Si +ΔR Si ;

[0083] Among them, R Si The maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

[0084] Step S105: Based on the difference between the spinning emergency reserve of the secondary control area and the active power deficit shared by the secondary control area and the spinning emergency reserve reserved for its protection fault, the spinning emergency reserve capacity of the primary control area is obtained.

[0085] Specifically, the rotational emergency reserve in the primary control area should be the sum of the rotational emergency reserves reserved by the power supplies under the jurisdiction of the primary and secondary control areas.

[0086] Further, step S105 includes:

[0087] The standby capacity R for a spinning-out accident in the primary control area is obtained using the following formula. S :

[0088] R S =∑R Si ′+∑αi ×(1-β i )×ΔR i ;

[0089] Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

[0090] The above embodiments, for synchronous power grids with large-capacity DC feeds, reserve a certain capacity of spinning contingency reserve according to the principle of hierarchical, zoned, and time-based allocation to cope with power shortages caused by unplanned outages of power generation or transmission and transformation equipment, ensuring stable system frequency operation after a fault. The methods provided in the above embodiments enable the power system's contingency reserve configuration to meet both system operational safety and economic requirements: firstly, the contingency reserve should be fully deployed within a certain timeframe, and its deployment should remain in place for a certain period, ensuring that the minimum transient frequency and recovery frequency after a fault are within acceptable ranges; secondly, the contingency reserve capacity and distribution should be rationally configured to avoid wasting power resources and reduce power system operating costs.

[0091] Figure 2 A schematic diagram of a device for configuring a rotational emergency reserve capacity according to an embodiment of the present invention is shown.

[0092] like Figure 2 As shown, this device, applied to a high-capacity DC feed system, includes:

[0093] The acquisition unit 201 is used to acquire the maximum active power deficit caused by the protection fault in the primary control area and the power generation load ratio of the secondary control area to the primary control area.

[0094] The first processing unit 202 is used to obtain the difference between the active power deficit shared by the secondary control area and the rotating fault reserve reserved by the secondary control area based on the maximum active power deficit caused by the protection failure of the primary control area and the power generation load ratio of the secondary control area to the primary control area.

[0095] The second processing unit 203 is used to obtain the active power difference of the secondary control area based on the difference between the active power deficit shared by the secondary control area and the rotational emergency reserve reserved for the protection fault.

[0096] The third processing unit 204 is used to obtain the spin-off standby capacity of the secondary control area based on the active power difference shared by the secondary control area and the maximum active power deficit caused by the secondary control area defense fault.

[0097] The fourth processing unit 205 is used to obtain the rotational emergency reserve capacity of the primary control area based on the difference between the rotational emergency reserve of the secondary control area and the active power deficit shared by the secondary control area and the rotational emergency reserve reserved for its protection fault.

[0098] Furthermore, the first processing unit 202 is also used for:

[0099] Based on the maximum active power deficit caused by the defense failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area, the active power deficit shared by the secondary control area is obtained.

[0100] Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained.

[0101] Furthermore, based on the maximum active power deficit caused by a fault in the primary control area and the proportion of the generation load of the secondary control area to that of the primary control area, the active power deficit shared by the secondary control area is obtained, including:

[0102] The maximum active power deficit caused by a fault in the primary control area is allocated according to the power generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area.

[0103] Furthermore, the maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area to obtain the active power deficit shared by the secondary control area, including:

[0104] The active power deficit R shared by the secondary control area is obtained using the following formula. i :

[0105] R i =k i ×R;

[0106] Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

[0107] Furthermore, based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained, including:

[0108] The difference ΔR between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for it is obtained by the following formula.i :

[0109] ΔR i =max(0, R) i -R Si );

[0110] Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

[0111] Furthermore, the second processing unit 203 is also used for:

[0112] The active power difference ΔR shared by the two-level control areas is obtained using the following formula. Si :

[0113] ΔR Si =α i ×β i ×ΔR i ;

[0114] Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

[0115] Furthermore, the third processing unit 204 is also used for:

[0116] The standby capacity R for a spinning-out accident in the secondary control area is obtained using the following formula. Si ':

[0117] R Si ′=R Si +ΔR Si ;

[0118] Among them, R Si The maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

[0119] Furthermore, the fourth processing unit 205 is also used for:

[0120] The standby capacity R for a spinning-out accident in the primary control area is obtained using the following formula. S :

[0121] R S =∑R Si ′+∑αi ×(1-β i )×ΔR i ;

[0122] Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

[0123] The above embodiments, for large-capacity DC-fed synchronous power grids, reserve a certain capacity of spinning emergency reserve according to the principle of hierarchical, zoned, and time-based allocation to cope with power shortages caused by unplanned outages of power generation or transmission and transformation equipment, ensuring stable system frequency operation after an accident. The devices provided in the above embodiments enable the power system's emergency reserve configuration to meet both system operational safety and economic requirements: firstly, the emergency reserve should be fully deployed within a certain timeframe, and its deployment should remain in place for a certain period, ensuring that the minimum transient frequency and recovery frequency after a fault are within acceptable ranges; secondly, the emergency reserve capacity and distribution should be rationally configured to avoid wasting power resources and reduce power system operating costs.

[0124] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0125] This invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the method for configuring spin-off emergency reserve capacity provided in the above embodiments.

[0126] This invention also provides an electronic device, including: a processor; a memory for storing processor-executable instructions; the processor being configured to read the executable instructions from the memory and execute the instructions to implement the spin-off emergency reserve capacity configuration method provided in the above embodiments.

[0127] The invention has been described with reference to a few embodiments. However, as will be known to those skilled in the art, and as defined in the appended claims, other embodiments besides those disclosed above fall equivalently within the scope of the invention.

[0128] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the art, unless otherwise expressly defined herein. All references to “a / the / the [device, component, etc.]” ​​are openly interpreted as at least one instance of said device, component, etc., unless otherwise expressly stated. The steps of any method disclosed herein need not be performed in the exact order disclosed unless explicitly stated otherwise.

[0129] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0130] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0131] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0132] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for configuring spin-off emergency reserve capacity, characterized in that, The method, applied to high-capacity DC-DC feed systems, includes: Obtain the maximum active power deficit caused by a fault in the primary control area and the proportion of the power generation load of the secondary control area to that of the primary control area; Based on the maximum active power deficit caused by the first-level control area's defense failure and the proportion of the second-level control area's power generation load to the first-level control area, the difference between the active power deficit shared by the second-level control area and the rotating accident reserve reserved for its defense failure is obtained. The active power deficit shared by the secondary control area is obtained based on the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it. Based on the active power difference shared by the secondary control area and the maximum active power deficit caused by the secondary control area's defense failure, the spin-off emergency reserve capacity of the secondary control area is obtained. The spin-off reserve capacity of the primary control area is obtained based on the difference between the spin-off reserve of the secondary control area and the active power deficit shared by the secondary control area and the spin-off reserve reserved for its protection fault.

2. The method according to claim 1, characterized in that, Based on the maximum active power deficit caused by the design fault in the primary control area and the proportion of the generation load of the secondary control area to that of the primary control area, the difference between the active power deficit shared by the secondary control area and the spinning fault reserve it holds is obtained, including: Based on the maximum active power deficit caused by the defense failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area, the active power deficit shared by the secondary control area is obtained. Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained.

3. The method according to claim 2, characterized in that, Based on the maximum active power deficit caused by the fortification failure in the primary control area and the proportion of the generation load of the secondary control area to that of the primary control area, the active power deficit shared by the secondary control area is obtained, including: The maximum active power deficit caused by a fault in the primary control area is allocated according to the power generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area.

4. The method according to claim 3, characterized in that, The maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area, resulting in the active power deficit shared by the secondary control area, including: The active power deficit R shared by the secondary control area is obtained using the following formula. i : R i =k i ×R; Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

5. The method according to claim 2, characterized in that, Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained, including: The difference ΔR between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for it is obtained by the following formula. i : ΔR i =max(0,R i -R Si ); Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

6. The method according to claim 1, characterized in that, The active power deficit shared by the secondary control area is obtained based on the difference between its active power deficit and the rotational fault reserve, which is set aside for its design faults. This active power deficit for the secondary control area includes: The active power difference ΔR shared by the two-level control areas is obtained using the following formula. Si : ΔR Si =a i ×b i ×ΔR i ; Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

7. The method according to claim 1, characterized in that, Based on the active power difference shared by the secondary control areas and the maximum active power deficit caused by the secondary control area's protection fault, the spinning emergency reserve capacity of the secondary control area is obtained, including: The standby capacity R for a spinning-out accident in the secondary control area is obtained using the following formula. Si ': R Si ′=R Si +ΔR Si ; Among them, R Si The maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

8. The method according to claim 1, characterized in that, Based on the difference between the spinning emergency reserve of the secondary control area and the active power deficit shared by the secondary control area and the spinning emergency reserve reserved for its protection faults, the spinning emergency reserve capacity of the primary control area is obtained, including: The standby capacity R for a spinning-out accident in the primary control area is obtained using the following formula. S : R S =∑R Si ′+∑α i ×(1-β i )×ΔR i ; Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

9. A device for configuring backup capacity in a spinning accident, characterized in that, The device, applicable to high-capacity DC feed systems, includes: The acquisition unit is used to acquire the maximum active power deficit caused by the defense failure in the primary control area and the proportion of the power generation load of the secondary control area to that of the primary control area. The first processing unit is used to obtain the difference between the active power deficit shared by the secondary control area and the rotating fault reserve reserved by the secondary control area based on the maximum active power deficit caused by the protection failure of the primary control area and the power generation load ratio of the secondary control area to the primary control area. The second processing unit is used to obtain the active power difference of the secondary control area based on the difference between the active power deficit of the secondary control area and the rotational emergency reserve reserved for the protection fault. The third processing unit is used to obtain the spin-off standby capacity of the secondary control area based on the active power difference shared by the secondary control area and the maximum active power deficit caused by the secondary control area's defense fault. The fourth processing unit is used to obtain the rotational emergency reserve capacity of the primary control area based on the difference between the rotational emergency reserve of the secondary control area and the active power deficit shared by the secondary control area and the rotational emergency reserve reserved for its protection fault.

10. The apparatus according to claim 9, characterized in that, The first processing unit is further configured to: Based on the maximum active power deficit caused by the defense failure of the primary control area and the proportion of the power generation load of the secondary control area to the primary control area, the active power deficit shared by the secondary control area is obtained. Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained.

11. The apparatus according to claim 10, characterized in that, Based on the maximum active power deficit caused by the fortification failure in the primary control area and the proportion of the generation load of the secondary control area to that of the primary control area, the active power deficit shared by the secondary control area is obtained, including: The maximum active power deficit caused by a fault in the primary control area is allocated according to the power generation load ratio of the secondary control area to obtain the active power deficit borne by the secondary control area.

12. The apparatus according to claim 11, characterized in that, The maximum active power deficit caused by a fault in the primary control area is allocated according to the generation load ratio of the secondary control area, resulting in the active power deficit shared by the secondary control area, including: The active power deficit R shared by the secondary control area is obtained using the following formula. i : R i =k i ×R; Where, k i R represents the proportion of power generation load in the secondary control area to that in the primary control area, and R represents the maximum active power deficit caused by a fault in the primary control area.

13. The apparatus according to claim 10, characterized in that, Based on the active power deficit shared by the secondary control area, the difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for it is obtained, including: The difference ΔR between the active power deficit shared by the secondary control area and the rotating fault reserve reserved for it is obtained by the following formula. i : ΔR i =max(0,R i -R Si ); Among them, R i For the active power deficit shared by the secondary control area, R Si The maximum active power deficit caused by a fault in the secondary control zone.

14. The apparatus according to claim 9, characterized in that, The second processing unit is further configured to: The active power difference ΔR shared by the two-level control areas is obtained using the following formula. Si : ΔR Si =a i ×b i ×ΔR i ; Where, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of secondary control areas, ΔR i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its protection against faults.

15. The apparatus according to claim 9, characterized in that, The third processing unit is further configured to: The standby capacity R for a spinning-out accident in the secondary control area is obtained using the following formula. Si ': R Si ′=R Si +ΔR Si ; Among them, R Si The maximum active power deficit caused by a fault in the secondary control area, ΔR Si The difference in active power shared by the secondary control area.

16. The apparatus according to claim 9, characterized in that, The fourth processing unit is further configured to: The standby capacity R for a spinning-out accident in the primary control area is obtained using the following formula. S : R S =∑R Si ′+∑α i ×(1-β i )×ΔR i ; Among them, R Si 'For the backup capacity of the secondary control area in the event of a rotational accident, ΔR' i The difference between the active power deficit shared by the secondary control area and the rotational fault reserve reserved for its design faults, α i For ΔR Si account for ΔR i The proportion, β i For ΔR Si The proportion of responsibility shared by the secondary and intermediate control areas.

17. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method described in any one of claims 1-8.

18. An electronic device comprising: processor; Memory used to store the processor's executable instructions; The processor is configured to read the executable instructions from the memory and execute the instructions to implement the method according to any one of claims 1-8.

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