CN117833203A - Power transmission network recovery state characteristic index generation method and system - Google Patents
Power transmission network recovery state characteristic index generation method and system Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The invention relates to the technical field of power systems, and discloses a method and a system for generating a characteristic index of a recovery state of a power transmission network, wherein the method comprises the following steps: acquiring operation data, operation state and abnormality and alarm data of a power grid in real time; the running state comprises a power failure state and a recoverable state; analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island; and calculating the recovery state characteristic indexes of all the electric islands and the power grid based on the operation mode data to obtain the recovery state characteristic indexes of the power grid. The invention fills the blank of lack of basis for evaluating the safety and stability of the power grid in the recovery state.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a method and a system for generating a characteristic index of a recovery state of a power transmission network.
Background
The purpose of carrying out recovery control after the power grid blackout is to quickly, safely and economically recover power supply and avoid introducing new safety and stability risks. Therefore, in the long process from black start to full recovery of the large power grid, the whole process of online safety and stability evaluation is required to be carried out on the power grid in the recovery state so as to ensure that the power grid in the recovery state has a certain safety and stability level and can bear the impact caused by recovery operation and other uncertain factors, thereby supporting the smooth progress of the recovery process.
At present, the on-line safety and stability assessment of the power grid under the normal working condition is based on a series of standards, function specifications and the like of the safety and stability analysis of the power grid including the electric power system safety and stability guide rule. However, these standards and specifications are only aimed at the power grid under the normal working condition, and are not applicable to the power grid in the recovery state, because the transition power grid in the recovery process often cannot meet the assessment requirements under the normal working condition.
For example, a properly functioning grid is often required to withstand at least permanent failure of any one device without losing safety and stability. However, in the early recovery stage, the power grid is mostly of a radiation type topological structure, the permanent fault of any line can cause serious consequences of system disconnection, the existing safety and stability assessment program is easy to calculate abnormality, and even if the calculation can be completed, the result has no reference significance for dispatching operators. On the other hand, the transition power grid in the recovery process needs to have a certain safety and stability level to ensure that the recovery process is smoothly carried out.
At present, no guiding principle or basis is available for online safety and stability evaluation of the transition power grid in the recovery state at home and abroad, so that the invention aims to provide a characteristic index system of the transition power grid and a quantitative evaluation method thereof, which accord with the characteristics of the whole recovery process, and provide powerful support for the subsequent safety and stability evaluation method for further constructing the whole recovery state power grid.
Disclosure of Invention
The embodiment of the invention provides a method and a system for generating a characteristic index of a recovery state of a power transmission network, which are used for solving the technical problems in the prior art.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of an embodiment of the present invention, a method for generating a characteristic index of a recovery state of a power transmission network is provided.
In one embodiment, the method for generating the transmission network recovery state characteristic index includes:
acquiring operation data, operation state and abnormality and alarm data of a power grid in real time; the running state comprises a power failure state and a recoverable state;
analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island;
calculating the recovery state characteristic indexes of all the electric islands and the power grid based on the operation mode data to obtain the recovery state characteristic indexes of the power grid;
Wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
In one embodiment, analyzing the electrical islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data, and obtaining operation mode data of each electrical island includes:
carrying out topology connectivity analysis according to the real-time operation data of the power grid, identifying a communication network consisting of a plurality of connected primary devices as an electric island, and calculating the total number of the electric islands of the whole power grid;
for each electric island, generating real-time operation mode data according to the operation data, the operation state and the abnormality and alarm data;
wherein, the operation mode data comprises: the power flow data used for the power flow calculation of each electric island, the equipment dynamic parameters used for the dynamic and transient stability calculation of each electric island and the sequence network data used for the short circuit current calculation of each electric island.
In one embodiment, calculating the electrical island topology feature index for each electrical island based on the operational mode data comprises: determining non-fully-stopped power plants and substations in the electric island according to the operation mode data; unifying the power plants and the substations which are not completely stopped in the electric island as nodes, wherein the lines in the normal running state are regarded as non-directional edges between the nodes, and if a plurality of edges exist between the adjacent nodes, the adjacent nodes are regarded as different edges; searching all paths between any two nodes in the electric island; if 1 path exists between any two nodes in the electric island, the corresponding value is 1, otherwise, the value is 0, and the corresponding value is 1; if the paths between any two nodes in the electric island exceed 1, the multi-loop index of the electric island is yes, the value is taken as 1, otherwise, the multi-loop index of the electric island is no, the value is taken as 0, and if the value is 1.
In one embodiment, calculating the electrical island grid-connected hydrothermal power fluctuation balancing feature index of each electrical island based on the operation mode data comprises: according to the operation mode data, calculating the positive standby power of each electric island and the upper limit of the output of the maximum single power supply; if the positive standby power of the electric island is larger than the output upper limit of the maximum single power supply in the electric island, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation is water-gas-power-balance, the value is taken as 1, otherwise, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation-balance characteristic index is water-gas-power-imbalance, and the value is taken as 0.
In one embodiment, calculating the electric island grid-connected new energy power generation fluctuation balancing feature index of each electric island based on the operation mode data comprises: according to the operation mode data, respectively counting new energy output and rotation reserve of each electric island; if the positive rotation reserve of the electric island is greater than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island and the negative rotation reserve of the electric island is greater than or equal to the upward fluctuation maximum value of the new energy power generation output of the electric island, the electric island grid-connected new energy power generation fluctuation balancing characteristic index is the new energy fluctuation capable of balancing, and the value is taken as 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0; if the wind and light discarding is allowed, and the positive rotation reserve of the electric island is larger than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island, the power generation fluctuation balancing characteristic index of the new energy grid-connected electric island is the new energy fluctuation balancing, and the value is 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0.
In one embodiment, calculating the electrical island direct current system recovery state index for each electrical island based on the operational mode data comprises: judging the state of a direct current system of the electric island according to the operation mode data; if the state of the direct current system of the electric island is bipolar operation, the recovery state index of the direct current system of the electric island is the ratio of the transmission power of the bipolar circuit to the rated transmission power of the direct current system, and the value is taken as 2; if the direct current system state of the electric island is in a running state and the electric island runs in a single pole mode, the direct current system recovery state index of the electric island is 2 times of the ratio of the line transmission power to the rated transmission power of the direct current system, and the value is taken as 1.
In one embodiment, calculating the electrical island safety and stability control device recovery characteristic index for each electrical island based on the operational mode data includes: judging the state of an emergency control system of the electric island and the state of a low-frequency low-voltage load shedding device according to the operation mode data; if the emergency control system state of the electric island is in a running state and the emergency control system has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes a value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes a value of 0; if the state of the low-frequency low-voltage load shedding device of the electric island is in a running state and the low-frequency low-voltage load shedding device has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes the value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes the value of 0.
In one embodiment, calculating the recovery integrity index for the whole network and the power supply area based on the operation mode data includes: judging the equipment operation state of each station and the line state of each power supply area according to the operation mode data; if the primary equipment and the safety and stability control device are restored to normal operation except for the primary equipment and the safety and stability control device in the station in a planned outage state and a standby state under normal working conditions, and all loads are restored, the full-network restoration integrity index is fully restored, and the value is 2; if the primary equipment and the safety and stability control device in the station are in the outage state, the station is in the full outage state, and the full network recovery integrity index is in the full outage state and takes a value of 0; if the primary equipment and the safety and stability control device in the station are in the partial recovery state, the full-network recovery integrity index is in the partial recovery state, and the value is 0;
If the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are recovered except for the circuit which is scheduled to stop running and is standby under the normal working condition, the recovery integrity index of the power supply subarea is recovered completely, and the value is 2; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a shutdown state, the restoration integrity index of the power supply area is 0; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a partial recovery state, the recovery integrity index of the power supply partition is in a partial recovery state, and the value is 1.
According to a second aspect of the embodiment of the present invention, there is provided a transmission grid recovery status characteristic index generation system.
In one embodiment, the power transmission network recovery status feature index generation system includes:
the data acquisition module is used for acquiring the operation data, the operation state and the abnormal and alarm data of the power grid in real time; the running state comprises a power failure state and a recoverable state;
the data analysis module is used for analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island;
The characteristic index calculation module is used for calculating the characteristic indexes of the recovery state of all the electric islands and the power grid based on the operation mode data to obtain the characteristic indexes of the recovery state of the power transmission grid;
wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
In one embodiment, the data analysis module analyzes the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data, performs topology connectivity analysis according to the real-time operation data of the power grid when obtaining the operation mode data of each electric island, identifies a communication network consisting of a plurality of connected primary devices as one electric island, and calculates the total number of the electric islands of the whole power grid; for each electric island, generating real-time operation mode data according to the operation data, the operation state and the abnormality and alarm data;
Wherein, the operation mode data comprises: the power flow data used for the power flow calculation of each electric island, the equipment dynamic parameters used for the dynamic and transient stability calculation of each electric island and the sequence network data used for the short circuit current calculation of each electric island.
In one embodiment, the characteristic index calculation module determines non-fully stopped power plants and substations in the electric islands according to the operation mode data when calculating the electric island topology characteristic index of each electric island based on the operation mode data; unifying the power plants and the substations which are not completely stopped in the electric island as nodes, wherein the lines in the normal running state are regarded as non-directional edges between the nodes, and if a plurality of edges exist between the adjacent nodes, the adjacent nodes are regarded as different edges; searching all paths between any two nodes in the electric island; if 1 path exists between any two nodes in the electric island, the corresponding value is 1, otherwise, the value is 0, and the corresponding value is 1; if the paths between any two nodes in the electric island exceed 1, the multi-loop index of the electric island is yes, the value is taken as 1, otherwise, the multi-loop index of the electric island is no, the value is taken as 0, and if the value is 1.
In one embodiment, the characteristic index calculation module calculates positive standby power of each electric island and the upper limit of output of the maximum single power supply according to the operation mode data when calculating electric island grid-connected hydrothermal power fluctuation balancing characteristic indexes of each electric island based on the operation mode data; if the positive standby power of the electric island is larger than the output upper limit of the maximum single power supply in the electric island, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation is water-gas-power-balance, the value is taken as 1, otherwise, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation-balance characteristic index is water-gas-power-imbalance, and the value is taken as 0.
In one embodiment, the characteristic index calculation module calculates the electric island grid-connected new energy power generation fluctuation balancing characteristic index of each electric island based on the operation mode data, and respectively calculates the new energy output and rotation reserve of each electric island according to the operation mode data; if the positive rotation reserve of the electric island is greater than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island and the negative rotation reserve of the electric island is greater than or equal to the upward fluctuation maximum value of the new energy power generation output of the electric island, the electric island grid-connected new energy power generation fluctuation balancing characteristic index is the new energy fluctuation capable of balancing, and the value is taken as 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0; if the wind and light discarding is allowed, and the positive rotation reserve of the electric island is larger than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island, the power generation fluctuation balancing characteristic index of the new energy grid-connected electric island is the new energy fluctuation balancing, and the value is 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0.
In one embodiment, the characteristic index calculation module is used for judging the state of the direct current system of each electric island according to the operation mode data when calculating the recovery state index of the direct current system of each electric island based on the operation mode data; if the state of the direct current system of the electric island is bipolar operation, the recovery state index of the direct current system of the electric island is the ratio of the transmission power of the bipolar circuit to the rated transmission power of the direct current system, and the value is taken as 2; if the direct current system state of the electric island is in a running state and the electric island runs in a single pole mode, the direct current system recovery state index of the electric island is 2 times of the ratio of the line transmission power to the rated transmission power of the direct current system, and the value is taken as 1.
In one embodiment, the characteristic index calculation module is used for judging the state of an emergency control system and the state of a low-frequency low-voltage load reduction device of each electric island according to the operation mode data when calculating the electric island safety and stability control device recovery characteristic index of each electric island based on the operation mode data; if the emergency control system state of the electric island is in a running state and the emergency control system has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes a value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes a value of 0; if the state of the low-frequency low-voltage load shedding device of the electric island is in a running state and the low-frequency low-voltage load shedding device has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes the value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes the value of 0.
In one embodiment, the characteristic index calculation module is used for judging the equipment running state of each station and the line state of each power supply area according to the running mode data when calculating the recovery integrity index of the whole network and the power supply area based on the running mode data; if the primary equipment and the safety and stability control device are restored to normal operation except for the primary equipment and the safety and stability control device in the station in a planned outage state and a standby state under normal working conditions, and all loads are restored, the full-network restoration integrity index is fully restored, and the value is 2; if the primary equipment and the safety and stability control device in the station are in the outage state, the station is in the full outage state, and the full network recovery integrity index is in the full outage state and takes a value of 0; if the primary equipment and the safety and stability control device in the station are in the partial recovery state, the full-network recovery integrity index is in the partial recovery state, and the value is 0;
if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are recovered except for the circuit which is scheduled to stop running and is standby under the normal working condition, the recovery integrity index of the power supply subarea is recovered completely, and the value is 2; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a shutdown state, the restoration integrity index of the power supply area is 0; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a partial recovery state, the recovery integrity index of the power supply partition is in a partial recovery state, and the value is 1.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the invention extracts the characteristic indexes of the large power grid from different dimensions of power grid restoration and operation such as topological characteristics, electric island scale, standby level, new energy grid connection capacity, safety control device restoration degree, direct current system restoration degree and the like based on the typical intermediate state of the large power grid from full stop to full restoration, establishes an index system for quantitatively describing the power grid characteristics of the restoration state for the first time, provides a calculation method thereof, fills the blank of lack of basis for carrying out safety and stability evaluation on the power grid in the restoration state, and provides powerful support for the follow-up safety and stability evaluation method for further constructing the full process of the power grid in the restoration state, thereby being capable of carrying out reliable full process safety and stability evaluation on the power grid restoration state, obviously improving the safety and stability level of the power grid in the restoration state and guaranteeing the smooth progress of the restoration process.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of generating a grid recovery status signature in accordance with an exemplary embodiment;
FIG. 2 is a block diagram illustrating a power transmission grid recovery status signature index generation system in accordance with an exemplary embodiment;
fig. 3 is a schematic diagram of a computer device according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments herein includes the full scope of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like herein are used merely to distinguish one element from another element and do not require or imply any actual relationship or order between the elements. Indeed the first element could also be termed a second element and vice versa. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a structure, apparatus or device comprising the element. Various embodiments are described herein in a progressive manner, each embodiment focusing on differences from other embodiments, and identical and similar parts between the various embodiments are sufficient to be seen with each other.
The terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description herein and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus are not to be construed as limiting the invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanically or electrically coupled, may be in communication with each other within two elements, may be directly coupled, or may be indirectly coupled through an intermediary, as would be apparent to one of ordinary skill in the art.
Herein, unless otherwise indicated, the term "plurality" means two or more.
Herein, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
Herein, the term "and/or" is an association relation describing an object, meaning that three relations may exist. For example, a and/or B, represent: a or B, or, A and B.
It should be understood that, although the steps in the flowchart are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of other steps or other steps.
The various modules in the apparatus or systems of the present application may be implemented in whole or in part in software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Fig. 1 shows an embodiment of a power transmission network recovery status characteristic index generation method of the present invention.
In this alternative embodiment, the method for generating a characteristic index of a recovery state of a power transmission network includes:
step S101, operation data, operation state and abnormal and alarm data of a power grid are obtained in real time; the running state comprises a power failure state and a recoverable state;
step S103, analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island;
step S105, calculating the recovery state characteristic indexes of all the electric islands and the power grid based on the operation mode data to obtain the recovery state characteristic indexes of the power transmission grid;
wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
Fig. 2 illustrates one embodiment of a grid recovery status signature generation system of the present invention.
In this alternative embodiment, the power transmission network recovery status feature index generation system includes:
the data acquisition module 201 is configured to acquire operation data, an operation state, and abnormal and alarm data of the power grid in real time; the running state comprises a power failure state and a recoverable state;
the data analysis module 203 is configured to analyze the electrical islands of the power grid in real time according to the operation data, the operation state, and the anomaly and alarm data, so as to obtain operation mode data of each electrical island;
the characteristic index calculation module 205 is configured to calculate a recovery state characteristic index of each electric island and the whole power grid based on the operation mode data, so as to obtain a recovery state characteristic index of the power transmission grid;
wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
In specific application, the electric island refers to any scale power grid which comprises an active power supply, a reactive power supply, a load and power transmission and transformation equipment in a plurality of running states and is communicated with each other and continuously and stably supplies power. When the electric islands of the power grid are analyzed in real time according to the operation data, the operation state and the abnormality and alarm data to obtain the operation mode data of each electric island, the topology connectivity analysis can be carried out according to the real-time operation data of the power grid, a communication network formed by a plurality of connected primary devices is identified as one electric island, and the total number of the electric islands of the whole power grid is calculated; for each electric island, generating real-time operation mode data according to the operation data, the operation state and the abnormality and alarm data;
wherein, the operation mode data comprises: the power flow data used for the power flow calculation of each electric island, the equipment dynamic parameters used for the dynamic and transient stability calculation of each electric island and the sequence network data used for the short circuit current calculation of each electric island.
When the topological characteristic index of the electric island of each electric island is calculated based on the operation mode data, the power plant and the transformer station which are not completely stopped in the electric island can be determined according to the operation mode data; unifying the power plants and the substations which are not completely stopped in the electric island as nodes, wherein the lines in the normal running state are regarded as non-directional edges between the nodes, and if a plurality of edges exist between the adjacent nodes, the adjacent nodes are regarded as different edges; searching all paths between any two nodes in the electric island; if 1 path exists between any two nodes in the electric island, the corresponding value is 1, otherwise, the value is 0, and the corresponding value is 1; if the paths between any two nodes in the electric island exceed 1, the multi-loop index of the electric island is yes, the value is taken as 1, otherwise, the multi-loop index of the electric island is no, the value is taken as 0, and if the value is 1.
When calculating the electric island grid-connected hydro-thermal power fluctuation balancing characteristic index of each electric island based on the operation mode data, calculating the positive standby power of each electric island and the output upper limit of the maximum single power supply according to the operation mode data; if the positive standby power of the electric island is larger than the output upper limit of the maximum single power supply in the electric island, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation is water-gas-power-balance, the value is taken as 1, otherwise, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation-balance characteristic index is water-gas-power-imbalance, and the value is taken as 0.
The calculation formula of the maximum value of the upward and downward fluctuation of the new energy output of each electric island is as follows:
in the method, in the process of the invention,respectively are electric islands G i The maximum value of upward and downward fluctuation of the power generated by the new energy source is taken as 0 if the calculated value is negative; n (N) ne, i Is an electric island G i New energy total number of (a); />Respectively are electric islands G i Current output value and ultrashort-term predicted value of the jth new energy power station, ++>The maximum positive deviation absolute value and the maximum negative deviation absolute value of the predicted value of the new energy power station compared with the actual value are obtained according to the historical data statistical analysis of the predicted deviation of the new energy power station output.
The positive rotation and negative rotation standby calculation formula of each electric island is as follows:
In the method, in the process of the invention,respectively are electric islands G i Is spare for positive and negative rotation, +.>The total number of power supplies for providing positive and negative rotation standby for the electric island respectively, and the types of the power supplies for providing rotation standby include, but are not limited to, a water/thermal power unit, an energy storage power station, a connecting line capable of downwards adjusting or cutting off loads, a power input plan lifting and a new energy power station in a power limiting state; />The upper output limit, the current output and the minimum output of the power source j are respectively.
When calculating the power generation fluctuation balancing characteristic index of the new energy sources of the electric island grid connection of each electric island based on the operation mode data, respectively counting the new energy source output and rotation reserve of each electric island according to the operation mode data; if the positive rotation reserve of the electric island is greater than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island and the negative rotation reserve of the electric island is greater than or equal to the upward fluctuation maximum value of the new energy power generation output of the electric island, the electric island grid-connected new energy power generation fluctuation balancing characteristic index is the new energy fluctuation capable of balancing, and the value is taken as 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0; if the wind and light discarding is allowed, and the positive rotation reserve of the electric island is larger than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island, the power generation fluctuation balancing characteristic index of the new energy grid-connected electric island is the new energy fluctuation balancing, and the value is 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0.
When the recovery state indexes of the direct current systems of the electric islands are calculated based on the operation mode data, the state of the direct current systems of the electric islands can be judged according to the operation mode data; if the state of the direct current system of the electric island is bipolar operation, the recovery state index of the direct current system of the electric island is the ratio of the transmission power of the bipolar circuit to the rated transmission power of the direct current system, and the value is taken as 2; if the direct current system state of the electric island is in a running state and the electric island runs in a single pole mode, the direct current system recovery state index of the electric island is 2 times of the ratio of the line transmission power to the rated transmission power of the direct current system, and the value is taken as 1.
When the electric island safety and stability control device recovery characteristic indexes of each electric island are calculated based on the operation mode data, the state of an emergency control system and the state of a low-frequency low-voltage load shedding device of the electric island can be judged according to the operation mode data; if the emergency control system state of the electric island is in a running state and the emergency control system has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes a value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes a value of 0; if the state of the low-frequency low-voltage load shedding device of the electric island is in a running state and the low-frequency low-voltage load shedding device has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes the value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes the value of 0.
The calculation formula of the cut-off recovery index of the low-frequency low-voltage load shedding device is as follows:
in UFUVL i The cut-off quantity recovery index is used for the low-frequency low-voltage load shedding device; n (N) f v, i Is an electric island G i The number of low-frequency low-voltage load shedding devices currently recovered is regarded as 1 set for the conventional AB set configuration; p (P) c l ,j Is the current cut-off load of the j-th set of devices.
The calculation formulas of the proportional index and the relative proportional index of the low-frequency low-pressure load shedding cut-off quantity recovery are as follows:
in the formula UFUVP i The proportional index for recovering the cut quantity of the low-frequency low-voltage load shedding; UFUVP i ' is a relative proportion index of low-frequency low-pressure load shedding cut-off quantity recovery; n (N) fv, i Is an electric island G i The number of low-frequency low-voltage load shedding devices which are recovered at present; p (P) c l,j Is the current cut-off load of the j-th set of device; p (P) Σ,L,i Is an electric island G i The total load recovered at present is obtained by counting the real-time operation data of the power grid; p (P) c l,Σ,0,i Is an electric island G i The average tangential load quantity of the low-frequency low-voltage load shedding device installed in the station under the normal working condition; p (P) Σ,0,L,i Is an electric island G i Average total load of the station in normal working condition.
When the recovery integrity index of the whole network and the power supply areas is calculated based on the operation mode data, the equipment operation state of each station and the line state of each power supply area can be judged according to the operation mode data; if the primary equipment and the safety and stability control device are restored to normal operation except for the primary equipment and the safety and stability control device in the station in a planned outage state and a standby state under normal working conditions, and all loads are restored, the full-network restoration integrity index is fully restored, and the value is 2; if the primary equipment and the safety and stability control device in the station are in the off-state, the station is in the full-off state, and the full-network recovery integrity index is partially recovered and takes a value of 0; under other conditions, the station is partially recovered, and the full-network recovery integrity index is partially recovered and takes a value of 1.
At the moment, the equipment type, the alternating current-direct current type, the voltage level and the duty ratio thereof in the equipment of the same type of the station are classified and counted, and the equipment type, the alternating current-direct current type, the voltage level and the duty ratio thereof in the equipment of the same type of the station are classified and counted; the power supply partition refers to that the whole power transmission network is divided into a plurality of independent monitoring and balanced power supply ranges in a normal operation state, and is a plurality of station, equipment and line sets; when the whole network is restored to the whole network communication state, the power supply partition is in the whole network range, and when the whole network is not restored to the whole network communication state, namely, the electric island still exists, the power supply partition is possibly in a certain electric island range; the device types include, but are not limited to, generator sets, energy storage units, transformers, bus bars, switches.
If the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are recovered except for the circuit which is scheduled to stop running and is standby under the normal working condition, the recovery integrity index of the power supply subarea is recovered completely, and the value is 2; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a shutdown state, the restoration integrity index of the power supply area is 0; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a partial recovery state, the recovery integrity index of the power supply partition is in a partial recovery state, and the value is 1.
At this time, the ac/dc type, the voltage level, whether the intra-partition line, whether the tie line, and the duty ratio thereof in the shutdown recoverable line are classified and counted, and the ac/dc type, the voltage level, whether the intra-partition line, the tie line, and the duty ratio thereof in the non-planned shutdown and the unrecoverable line are counted.
FIG. 3 illustrates one embodiment of a computer device of the present invention. The computer device may be a server including a processor, memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used to store static information and dynamic information data. The network interface of the computer device is used for communicating with an external terminal through a network connection. Which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It will be appreciated by those skilled in the art that the structure shown in FIG. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The invention further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the steps in the embodiment of the method.
In addition, the invention also provides a computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the above-mentioned method embodiments.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
The present invention is not limited to the structure that has been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (16)
1. A power transmission network recovery state characteristic index generation method, characterized by comprising:
acquiring operation data, operation state and abnormality and alarm data of a power grid in real time; the running state comprises a power failure state and a recoverable state;
analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island;
calculating the recovery state characteristic indexes of all the electric islands and the power grid based on the operation mode data to obtain the recovery state characteristic indexes of the power grid;
wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
2. The power transmission network recovery state characteristic index generation method according to claim 1, wherein analyzing the electric islands of the power transmission network in real time according to the operation data, the operation state and the abnormality and alarm data, to obtain operation mode data of each electric island comprises:
carrying out topology connectivity analysis according to the real-time operation data of the power grid, identifying a communication network consisting of a plurality of connected primary devices as an electric island, and calculating the total number of the electric islands of the whole power grid;
for each electric island, generating real-time operation mode data according to the operation data, the operation state and the abnormality and alarm data;
wherein, the operation mode data comprises: the power flow data used for the power flow calculation of each electric island, the equipment dynamic parameters used for the dynamic and transient stability calculation of each electric island and the sequence network data used for the short circuit current calculation of each electric island.
3. The power transmission network recovery state feature index generation method according to claim 2, wherein calculating an electrical island topology feature index of each electrical island based on the operation mode data comprises:
determining non-fully-stopped power plants and substations in the electric island according to the operation mode data;
Unifying the power plants and the substations which are not completely stopped in the electric island as nodes, wherein the lines in the normal running state are regarded as non-directional edges between the nodes, and if a plurality of edges exist between the adjacent nodes, the adjacent nodes are regarded as different edges;
searching all paths between any two nodes in the electric island;
if 1 path exists between any two nodes in the electric island, the corresponding value is 1, otherwise, the value is 0, and the corresponding value is 1;
if the paths between any two nodes in the electric island exceed 1, the multi-loop index of the electric island is yes, the value is taken as 1, otherwise, the multi-loop index of the electric island is no, the value is taken as 0, and if the value is 1.
4. The power transmission network recovery state characteristic index generation method according to claim 2, wherein calculating an electric island grid-connected hydrothermal power fluctuation balancing characteristic index of each electric island based on the operation mode data comprises:
according to the operation mode data, calculating the positive standby power of each electric island and the upper limit of the output of the maximum single power supply; if the positive standby power of the electric island is larger than the output upper limit of the maximum single power supply in the electric island, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation is water-gas-power-balance, the value is taken as 1, otherwise, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation-balance characteristic index is water-gas-power-imbalance, and the value is taken as 0.
5. The power transmission network recovery state characteristic index generation method according to claim 2, wherein calculating an electric island grid-connected new energy power generation fluctuation-balances characteristic index of each electric island based on the operation mode data comprises:
according to the operation mode data, respectively counting new energy output and rotation reserve of each electric island;
if the positive rotation reserve of the electric island is greater than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island and the negative rotation reserve of the electric island is greater than or equal to the upward fluctuation maximum value of the new energy power generation output of the electric island, the electric island grid-connected new energy power generation fluctuation balancing characteristic index is the new energy fluctuation capable of balancing, and the value is taken as 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0;
if the wind and light discarding is allowed, and the positive rotation reserve of the electric island is larger than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island, the power generation fluctuation balancing characteristic index of the new energy grid-connected electric island is the new energy fluctuation balancing, and the value is 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0.
6. The power transmission network recovery state feature index generation method according to claim 2, wherein calculating an electric island direct current system recovery state index of each electric island based on the operation mode data includes:
judging the state of a direct current system of the electric island according to the operation mode data;
if the state of the direct current system of the electric island is bipolar operation, the recovery state index of the direct current system of the electric island is the ratio of the transmission power of the bipolar circuit to the rated transmission power of the direct current system, and the value is taken as 2;
if the direct current system state of the electric island is in a running state and the electric island runs in a single pole mode, the direct current system recovery state index of the electric island is 2 times of the ratio of the line transmission power to the rated transmission power of the direct current system, and the value is taken as 1.
7. The power transmission network recovery state characteristic index generation method according to claim 2, wherein calculating an electric island safety and stability control device recovery characteristic index of each electric island based on the operation mode data includes:
judging the state of an emergency control system of the electric island and the state of a low-frequency low-voltage load shedding device according to the operation mode data;
if the emergency control system state of the electric island is in a running state and the emergency control system has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes a value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes a value of 0;
If the state of the low-frequency low-voltage load shedding device of the electric island is in a running state and the low-frequency low-voltage load shedding device has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes the value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes the value of 0.
8. The power transmission network recovery status feature index generation method according to claim 2, wherein calculating the recovery integrity index of the whole network and the power supply area based on the operation mode data comprises:
judging the equipment operation state of each station and the line state of each power supply area according to the operation mode data;
if the primary equipment and the safety and stability control device are restored to normal operation except for the primary equipment and the safety and stability control device in the station in a planned outage state and a standby state under normal working conditions, and all loads are restored, the full-network restoration integrity index is fully restored, and the value is 2; if the primary equipment and the safety and stability control device in the station are in the outage state, the station is in the full outage state, and the full network recovery integrity index is in the full outage state and takes a value of 0; if the primary equipment and the safety and stability control device in the station are in the partial recovery state, the full-network recovery integrity index is in the partial recovery state, and the value is 0;
If the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are recovered except for the circuit which is scheduled to stop running and is standby under the normal working condition, the recovery integrity index of the power supply subarea is recovered completely, and the value is 2; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a shutdown state, the restoration integrity index of the power supply area is 0; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a partial recovery state, the recovery integrity index of the power supply partition is in a partial recovery state, and the value is 1.
9. A transmission grid recovery status feature index generation system, comprising:
the data acquisition module is used for acquiring the operation data, the operation state and the abnormal and alarm data of the power grid in real time; the running state comprises a power failure state and a recoverable state;
the data analysis module is used for analyzing the electric islands of the power grid in real time according to the operation data, the operation state and the abnormality and alarm data to obtain operation mode data of each electric island;
the characteristic index calculation module is used for calculating the characteristic indexes of the recovery state of all the electric islands and the power grid based on the operation mode data to obtain the characteristic indexes of the recovery state of the power transmission grid;
Wherein the recovery state characteristic index includes: the method comprises the steps of an electric island topological characteristic index, an electric island grid-connected hydro-thermal power fluctuation balancing characteristic index, an electric island grid-connected new energy power generation fluctuation balancing characteristic index, an electric island direct current system recovery state index, an electric island safety and stability control device recovery characteristic index and a full-network power supply region recovery integrity index.
10. The power transmission network recovery state characteristic index generation system according to claim 9, wherein the data analysis module analyzes the electric islands of the power transmission network in real time according to the operation data, the operation state and the abnormality and alarm data, performs topology connectivity analysis according to the real-time operation data of the power transmission network when obtaining the operation mode data of each electric island, identifies a communication network composed of a plurality of connected primary devices as one electric island, and calculates the total number of the electric islands of the whole power transmission network; for each electric island, generating real-time operation mode data according to the operation data, the operation state and the abnormality and alarm data;
wherein, the operation mode data comprises: the power flow data used for the power flow calculation of each electric island, the equipment dynamic parameters used for the dynamic and transient stability calculation of each electric island and the sequence network data used for the short circuit current calculation of each electric island.
11. The grid recovery status feature index generation system of claim 10, wherein the feature index calculation module, when calculating the electrical island topology feature index for each electrical island based on the operational mode data, determines non-fully stopped power plants and substations in the electrical island based on the operational mode data; unifying the power plants and the substations which are not completely stopped in the electric island as nodes, wherein the lines in the normal running state are regarded as non-directional edges between the nodes, and if a plurality of edges exist between the adjacent nodes, the adjacent nodes are regarded as different edges; searching all paths between any two nodes in the electric island; if 1 path exists between any two nodes in the electric island, the corresponding value is 1, otherwise, the value is 0, and the corresponding value is 1; if the paths between any two nodes in the electric island exceed 1, the multi-loop index of the electric island is yes, the value is taken as 1, otherwise, the multi-loop index of the electric island is no, the value is taken as 0, and if the value is 1.
12. The power transmission network recovery state characteristic index generation system according to claim 10, wherein the characteristic index calculation module calculates positive standby power of each electric island and an upper limit of output of a maximum single power supply according to the operation mode data when calculating electric island grid-connected hydrothermal power fluctuation-balancing characteristic indexes of each electric island based on the operation mode data; if the positive standby power of the electric island is larger than the output upper limit of the maximum single power supply in the electric island, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation is water-gas-power-balance, the value is taken as 1, otherwise, the water-gas-power-fluctuation-balance characteristic index of the electric island grid-connected water-gas-power-fluctuation-balance characteristic index is water-gas-power-imbalance, and the value is taken as 0.
13. The transmission grid recovery state characteristic index generation system according to claim 10, wherein the characteristic index calculation module calculates new energy output and rotation reserve of each electric island according to the operation mode data when calculating electric island grid-connected new energy power generation fluctuation balancing characteristic indexes of each electric island based on the operation mode data; if the positive rotation reserve of the electric island is greater than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island and the negative rotation reserve of the electric island is greater than or equal to the upward fluctuation maximum value of the new energy power generation output of the electric island, the electric island grid-connected new energy power generation fluctuation balancing characteristic index is the new energy fluctuation capable of balancing, and the value is taken as 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0; if the wind and light discarding is allowed, and the positive rotation reserve of the electric island is larger than or equal to the downward fluctuation maximum value of the new energy power generation output of the electric island, the power generation fluctuation balancing characteristic index of the new energy grid-connected electric island is the new energy fluctuation balancing, and the value is 1; otherwise, the electric island grid-connected new energy power generation fluctuation balance characteristic index is the unbalanced new energy fluctuation, and the value is taken as 0.
14. The power transmission network recovery state characteristic index generation system according to claim 10, wherein the characteristic index calculation module, when calculating the electric island direct current system recovery state index of each electric island based on the operation mode data, determines the state of the direct current system of the electric island according to the operation mode data; if the state of the direct current system of the electric island is bipolar operation, the recovery state index of the direct current system of the electric island is the ratio of the transmission power of the bipolar circuit to the rated transmission power of the direct current system, and the value is taken as 2; if the direct current system state of the electric island is in a running state and the electric island runs in a single pole mode, the direct current system recovery state index of the electric island is 2 times of the ratio of the line transmission power to the rated transmission power of the direct current system, and the value is taken as 1.
15. The transmission grid recovery state characteristic index generation system according to claim 10, wherein the characteristic index calculation module, when calculating the electric island safety and stability control device recovery characteristic index of each electric island based on the operation mode data, judges the emergency control system state and the low-frequency low-voltage load shedding device state of the electric island according to the operation mode data; if the emergency control system state of the electric island is in a running state and the emergency control system has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes a value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes a value of 0; if the state of the low-frequency low-voltage load shedding device of the electric island is in a running state and the low-frequency low-voltage load shedding device has no abnormality or alarm information, the restoration characteristic index of the safety and stability control device of the electric island is restored and takes the value of 1, otherwise, the restoration characteristic index of the safety and stability control device of the electric island is not restored and takes the value of 0.
16. The transmission grid recovery state feature index generation system according to claim 10, wherein the feature index calculation module, when calculating the recovery integrity index of the whole grid and the power supply area based on the operation mode data, determines the equipment operation state of each station and the line state of each power supply area according to the operation mode data; if the primary equipment and the safety and stability control device are restored to normal operation except for the primary equipment and the safety and stability control device in the station in a planned outage state and a standby state under normal working conditions, and all loads are restored, the full-network restoration integrity index is fully restored, and the value is 2; if the primary equipment and the safety and stability control device in the station are in the outage state, the station is in the full outage state, and the full network recovery integrity index is in the full outage state and takes a value of 0; if the primary equipment and the safety and stability control device in the station are in the partial recovery state, the full-network recovery integrity index is in the partial recovery state, and the value is 0;
if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are recovered except for the circuit which is scheduled to stop running and is standby under the normal working condition, the recovery integrity index of the power supply subarea is recovered completely, and the value is 2; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a shutdown state, the restoration integrity index of the power supply area is 0; if the internal circuit of the power supply area and the connecting circuit between the internal circuit and the adjacent power supply area are in a partial recovery state, the recovery integrity index of the power supply partition is in a partial recovery state, and the value is 1.
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