Multi-dimensional safety checking method and system for power distribution network cross-system multi-scenario control

Abstract

The application discloses a multi-dimensional safety checking method and system for power distribution network cross-system multi-scene control, and comprises the following steps: acquiring multi-dimensional data of a power distribution network system, judging whether power distribution network dispatching control passes a safety checking mechanism based on the multi-dimensional data of the power distribution network system, and if the power distribution network dispatching control satisfies the safety checking mechanism, completing multi-dimensional safety checking of power distribution network cross-system multi-scene control. The application provides a regularized, hierarchical and centralized safety checking system for power distribution network cross-system multi-scene control on the basis of control operation permission checking, monitoring operation checking, power supply reliability checking based on power distribution network topology, controllability checking of control objects and cross-system control checking method based on file forwarding, realizes safe, reliable and flexible calling of the safety checking module by the power distribution network cross-system multi-scene control, and also facilitates centralized management and control of the safety checking module by the system, thereby improving the safety and controllability of the power distribution network.

Description

Technical Field

[0001] This invention relates to the technical field of power distribution networks, and in particular to a multi-dimensional safety verification method and system for cross-system, multi-scenario control of power distribution networks. Background Technology

[0002] The existing energy internet technology, which is centered on electricity and deeply integrates advanced information and communication technology, control technology and energy technology, will be an important implementation path in the construction of the new power system. As the "last mile" of the new power system and an important link in energy supply to end users, the distribution network plays an important role in improving and enhancing the user's energy experience. Therefore, the safe operation control of the distribution network has become an important operation in the transmission of power resources.

[0003] Currently, distribution network control business scenarios (load transfer, programmed control, bus self-healing, etc.) are increasingly reliant on remote operation of distribution network automation systems. At the same time, the new businesses, new equipment, and new operational requirements brought about by the integration of distributed renewable energy into the distribution network have led to continuous changes in security verification rules. However, there are still problems such as inconsistent security verification dimensions for distribution network control business functions, discrete distribution of system security verification functions, and lack of effective security verification mechanisms for cross-system security control. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the aforementioned existing problems, the present invention is proposed.

[0006] Therefore, this invention provides a multi-dimensional safety verification method and system for cross-system multi-scenario control of power distribution networks to solve the problems mentioned in the background technology.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] In a first aspect, embodiments of the present invention provide a multi-dimensional safety verification method for cross-system, multi-scenario control of distribution networks, including:

[0009] Acquire multidimensional data of the power distribution network system, including control service request data, system control operation data, power distribution network related data, and equipment ledger information;

[0010] Based on the multi-dimensional data of the power distribution system, determine whether the power distribution network dispatch and control passes the security verification mechanism;

[0011] If the distribution network dispatch and control all meet the safety verification mechanism, then the multi-dimensional safety verification of the distribution network cross-system multi-scenario control is completed.

[0012] As a preferred embodiment of the multi-dimensional security verification method for cross-system multi-scenario control of distribution networks described in this invention, the method includes: determining whether the distribution network dispatch control passes the security verification mechanism based on multi-dimensional data of the distribution network system, comprising:

[0013] When the control business scenario is a cross-system control business, the cross-system control based on file forwarding is checked; otherwise, the control operation control permissions are checked.

[0014] When the control business scenario is a cross-system control business, if the cross-system control verification based on file forwarding passes, a pass log is recorded and the verification ends; otherwise, a failure log is recorded and the verification ends.

[0015] When the control business scenario is the system control business, if the control operation control permission passes the verification, the pass log is recorded and the monitoring operation is verified; otherwise, the failure log is recorded and the verification ends.

[0016] When the control operation permission passes the verification, the pass log is recorded and the monitoring operation is verified; if the monitoring operation passes the verification, the pass log is recorded and the power supply reliability based on the distribution network topology is verified; otherwise, the failure log is recorded and the verification ends.

[0017] If the power supply reliability based on the distribution network topology passes the verification, record the pass log and verify the controllability of the controlled object; otherwise, record the fail log and end the verification.

[0018] When the controllability verification of the controlled object passes, the multi-dimensional safety verification of cross-system multi-scenario control of the distribution network is completed; otherwise, a failure log is recorded and the verification ends.

[0019] As a preferred embodiment of the multi-dimensional security verification method for cross-system multi-scenario control of distribution networks described in this invention, wherein: when the control business scenario is a cross-system control business, the cross-system control based on file forwarding is verified; otherwise, the control operation control permissions are verified, including:

[0020] When the control business scenario is cross-system control business, the cross-system control based on file forwarding is verified; if the improved MD5 verification of the cross-system control based on file forwarding passes, the file timeliness is verified; otherwise, the reason for the verification failure is recorded and the verification ends.

[0021] If the document's timeliness verification passes, then verify the document's naming and / or format; otherwise, record the reason for the verification failure and end the verification process.

[0022] If the file naming and / or format verification passes, check if the device is in the whitelist; otherwise, record the reason for the verification failure and end the verification process.

[0023] If the device is in the whitelist, verify the device ledger information; otherwise, record the reason for the verification failure and end the verification process.

[0024] If the equipment ledger information passes verification, then verify the equipment status; otherwise, record the reason for the verification failure and end the verification process.

[0025] If the device status verification passes, the cross-system control verification based on file forwarding also passes, and the power supply reliability based on the distribution network topology is verified; otherwise, the reason for the verification failure is recorded and the verification ends.

[0026] As a preferred embodiment of the multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks described in this invention, the verification control operation control permissions include:

[0027] When the control business scenario is the system control business, obtain the user and operation node information of the distribution network system control business scenario and verify whether the operation node is controllable;

[0028] If the operation node is controllable, the verification passes and the user performing the operation is checked for control permissions; if the operation node is controllable, the operation node verification fails and the verification ends.

[0029] If the user has the necessary control permissions, the control permission verification will pass, and the monitoring operation will be verified; otherwise, the control permission verification will fail, and the verification process will end.

[0030] As a preferred embodiment of the multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks described in this invention, the verification and monitoring operation includes:

[0031] When the control operation control authority passes the verification, obtain the monitoring and remote control information of the distribution network system control business scenario and the monitoring operation request result;

[0032] If the distribution network system receives the monitoring operation request result and the monitoring operation request result is passed, then the monitoring operation verification is passed, and the power supply reliability based on the distribution network topology is verified.

[0033] When the distribution network system receives the monitoring operation request result, if the monitoring operation request result fails, the verification ends.

[0034] If the distribution network system does not receive the monitoring operation request result, it determines whether the waiting time exceeds the configured timeout. If the waiting time exceeds the configured timeout, the verification ends. If the waiting time does not exceed the configured timeout, it continues to obtain the monitoring operation request result.

[0035] As a preferred embodiment of the multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks described in this invention, the verification of power supply reliability based on the distribution network topology includes:

[0036] When the distribution network system receives the monitoring operation request result and the monitoring operation request result is approved, it obtains the distribution network-related data and equipment ledger information of the distribution network system control business scenario;

[0037] If the device is a main network device and a main network outgoing switch, then it checks whether the operation value of the main network device is the same as the current value. If the operation value is the same as the current value, it returns that the current device position is consistent with the operation value and ends the verification. If the operation value is different from the current value, it sends a topology request message to the topology service and checks whether the distribution network system receives the topology service return result. If the distribution network system receives the topology service return result, it parses and returns the topology service return result and verifies the controllability of the controlled object. If the distribution network system does not receive the topology service return result, it checks whether the waiting time exceeds the configured timeout period.

[0038] If the waiting time does not exceed the configured timeout, continue receiving the topology service return result; otherwise, return a timeout for waiting for the topology analysis result and end the verification.

[0039] If the device is a main network device and not a main network outgoing switch, the verification ends.

[0040] As a preferred embodiment of the multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks described in this invention, it further includes:

[0041] If the device is not a main network device and the operation value is the same as the current value, then the current device position is returned as consistent with the operation value, and the verification ends. If the device is not a main network device and the operation value is different from the current value, then a topology request message is sent to the topology service, and it is determined whether the distribution network system has received the topology service return result. If the distribution network system has received the topology service return result, then the topology service return result is parsed and returned, and the controllability of the controlled object is verified. If the distribution network system has not received the topology service return result, then it is determined whether the waiting time has exceeded the configured timeout period.

[0042] If the waiting time does not exceed the configured timeout, continue receiving the topology service return result; otherwise, return a timeout for waiting for the topology analysis result and end the verification.

[0043] When the power supply reliability verification based on the distribution network topology passes, the controllability of the controlled object is verified and the source of the control service request is determined.

[0044] If the control service request originates from the distribution network, then the distribution network remote control basic parameter verification is invoked;

[0045] If the control service request originates from the main network, then the main network remote control basic parameter verification is invoked.

[0046] Secondly, this invention provides a multi-dimensional safety verification system for cross-system, multi-scenario control of power distribution networks, including:

[0047] The data acquisition module is used to acquire multi-dimensional data of the distribution network system, including system control operation data, control service request data, distribution network related data, and equipment ledger information.

[0048] The first judgment module is used to determine whether the power distribution network dispatch control has passed the security verification mechanism based on the multi-dimensional data of the power distribution network system.

[0049] The second judgment module is used to complete the multi-dimensional safety verification of the cross-system multi-scenario control of the distribution network if the distribution network dispatch and control meet the safety verification mechanism.

[0050] Thirdly, the present invention provides a computing device, comprising:

[0051] Memory and processor;

[0052] The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, the steps of the multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks are implemented.

[0053] Fourthly, the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention considers multiple aspects such as control operation permission verification, monitoring operation verification, power supply reliability verification based on distribution network topology, controllability verification of controllable objects, and cross-system control verification based on file forwarding. It provides a rule-based, hierarchical, and centralized security verification system for cross-system multi-scenario control of distribution networks, realizes the safe, reliable, and flexible calling of the security verification module for cross-system multi-scenario control of distribution networks, and also facilitates the centralized management and control of the security verification module by the system, thereby improving the security and controllability level of distribution networks. Attached Figure Description

[0055] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0056] Figure 1 This is a flowchart illustrating a multi-dimensional safety verification method and system for cross-system multi-scenario control of power distribution networks according to an embodiment of the present invention.

[0057] Figure 2 This is a flowchart illustrating the multi-dimensional security verification method and system control operation permission verification for cross-system multi-scenario control of power distribution networks, as described in one embodiment of the present invention.

[0058] Figure 3 This is a flowchart illustrating the multi-dimensional safety verification method and system monitoring operation verification for cross-system multi-scenario control of power distribution networks, as described in one embodiment of the present invention.

[0059] Figure 4 This is a flowchart illustrating the power supply reliability verification method and system based on distribution network topology for multi-dimensional security verification of cross-system multi-scenario control in a distribution network according to an embodiment of the present invention.

[0060] Figure 5 This is a flowchart illustrating the multi-dimensional safety verification method and system controllability verification of the controllable object of a multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks, as described in one embodiment of the present invention.

[0061] Figure 6 This is a flowchart of a multi-dimensional security verification method and system for cross-system multi-scenario control of power distribution networks based on file forwarding, as described in one embodiment of the present invention.

[0062] Figure 7 This is an improved MD5 encryption verification flowchart of a multi-dimensional security verification method and system for cross-system multi-scenario control of power distribution networks, as described in one embodiment of the present invention. Detailed Implementation

[0063] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0064] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0065] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0066] This invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0067] Furthermore, in the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] Example 1

[0070] Reference Figures 1-7 As one embodiment of the present invention, this embodiment provides a multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks, including:

[0071] S1: Obtain multi-dimensional data from the distribution network system, including control service request data, system control operation data, distribution network related data, and equipment ledger information;

[0072] S2: Determine whether the power distribution network dispatch and control passes the security verification mechanism based on multi-dimensional data from the power distribution network system;

[0073] S3: If the distribution network dispatch and control all meet the safety verification mechanism, then the multi-dimensional safety verification of the distribution network cross-system multi-scenario control is completed.

[0074] Furthermore, based on multi-dimensional data from the distribution network system, the determination of whether the distribution network dispatch and control has passed the security verification mechanism includes:

[0075] When the control business scenario is a cross-system control business, the cross-system control based on file forwarding is checked; otherwise, the control operation control permissions are checked.

[0076] When the control business scenario is a cross-system control business, if the cross-system control verification based on file forwarding passes, a pass log is recorded and the verification ends; otherwise, a failure log is recorded and the verification ends.

[0077] When the control business scenario is the system control business, if the control operation control permission passes the verification, the pass log is recorded and the monitoring operation is verified; otherwise, the failure log is recorded and the verification ends.

[0078] When the control operation permission passes the verification, the pass log is recorded and the monitoring operation is verified; if the monitoring operation passes the verification, the pass log is recorded and the power supply reliability based on the distribution network topology is verified; otherwise, the failure log is recorded and the verification ends.

[0079] If the power supply reliability based on the distribution network topology passes the verification, record the pass log and verify the controllability of the controlled object; otherwise, record the fail log and end the verification.

[0080] When the controllability verification of the controlled object passes, the multi-dimensional safety verification of cross-system multi-scenario control of the distribution network is completed; otherwise, a failure log is recorded and the verification ends.

[0081] Furthermore, when the control scenario involves cross-system control, the cross-system control based on file forwarding is verified; otherwise, the control operation permissions are verified, including:

[0082] When the control business scenario is cross-system control business, the cross-system control based on file forwarding is verified; if the improved MD5 verification of the cross-system control based on file forwarding passes, the file timeliness is verified; otherwise, the reason for the verification failure is recorded and the verification ends.

[0083] If the document's timeliness verification passes, then verify the document's naming and / or format; otherwise, record the reason for the verification failure and end the verification process.

[0084] If the file naming and / or format verification passes, check if the device is in the whitelist; otherwise, record the reason for the verification failure and end the verification process.

[0085] If the device is in the whitelist, verify the device ledger information; otherwise, record the reason for the verification failure and end the verification process.

[0086] If the equipment ledger information passes verification, then verify the equipment status; otherwise, record the reason for the verification failure and end the verification process.

[0087] If the device status verification passes, the cross-system control verification based on file forwarding also passes, and the power supply reliability based on the distribution network topology is verified; otherwise, the reason for the verification failure is recorded and the verification ends.

[0088] Optionally, cross-system control verification based on file forwarding comprehensively considers the integrity, consistency, and security of control objects in different systems, including file and control information encryption and verification based on improved MD5 encryption technology; file timeliness and naming / format verification; controllable object access permission verification based on whitelist verification technology; and cross-system control object consistency and integrity verification.

[0089] When the requester and the receiver call the improved MD5 encryption dynamic library to encrypt and verify a file, if the results of the calls by the requester and the receiver are consistent, the file passes the MD5 verification; otherwise, it fails.

[0090] Specifically, file naming / format verification mainly includes whether the file name follows the agreed name and whether the number of "fields" in the file is equal to the number of "values".

[0091] Specifically, the file timeliness check compares the file time with the current time. If the timeout exceeds the set time limit, the file is not processed and is removed.

[0092] Specifically, the whitelist verification involves pre-setting a list of control devices with control attributes in the system. If the received instruction is in the pre-set list of control devices, the verification passes and the control instruction is sent to the corresponding device on the terminal. Otherwise, the verification fails and the control instruction is not allowed to be sent.

[0093] Optionally, the improved MD5 encryption technology in this embodiment is based on the traditional MD5 encryption technology, and forms an MD5 code by concatenating the key content to the end of the file content.

[0094] In an optional embodiment, the improved MD5 encryption verification includes:

[0095] The control requester calls an improved MD5 encryption dynamic library to encrypt the file and generate a digest A;

[0096] Write summary A to a file and send it along with the file;

[0097] After the receiving party receives the file, it also calls the improved MD5 encryption dynamic library to calculate a digest B for the file;

[0098] If digest A matches digest B, the file passes the MD5 checksum; otherwise, it fails.

[0099] It should be noted that the control operation permission verification is based on predefined user and node information with control operation privileges. When performing control operations on the system, it automatically verifies whether the user and node have control operation privileges by calling the permission management service.

[0100] In this embodiment, the device status for cross-system control verification based on file forwarding includes operating status exit, remote control prohibited, and remote control lockout sign; the device ledger information includes device name, device ID, etc.

[0101] Furthermore, the verification control operation control permissions include:

[0102] When the control business scenario is the system control business, obtain the user and operation node information of the distribution network system control business scenario and verify whether the operation node is controllable;

[0103] If the operation node is controllable, the verification passes and the user performing the operation is checked for control permissions; if the operation node is controllable, the operation node verification fails and the verification ends.

[0104] If the user has the necessary control permissions, the control permission verification will pass, and the monitoring operation will be verified; otherwise, the control permission verification will fail, and the verification process will end.

[0105] It should be noted that the monitoring operation verification is aimed at the monitoring node, user and control object information of the control business request. When performing monitoring operations on the system, the verification operation of the monitoring operation process is realized by calling the permission management service and human-machine interface.

[0106] Furthermore, the verification and monitoring procedures include:

[0107] When the control operation control authority passes the verification, obtain the monitoring and remote control information of the distribution network system control business scenario and the monitoring operation request result;

[0108] If the distribution network system receives the monitoring operation request result and the monitoring operation request result is passed, then the monitoring operation verification is passed, and the power supply reliability based on the distribution network topology is verified.

[0109] When the distribution network system receives the monitoring operation request result, if the monitoring operation request result fails, the verification ends.

[0110] If the distribution network system does not receive the monitoring operation request result, it determines whether the waiting time exceeds the configured timeout. If the waiting time exceeds the configured timeout, the verification ends. If the waiting time does not exceed the configured timeout, it continues to obtain the monitoring operation request result.

[0111] It should be noted that in this embodiment of the invention, the waiting time for receiving the monitoring operation request result is 120 seconds, and the value of the waiting time can be selected according to the actual situation of the system settings; in this embodiment, the monitoring remote control information includes remote control device ID, control value, operator, operation node, etc.

[0112] It should also be noted that the power supply reliability verification based on the distribution network topology is based on the distribution network topology structure, taking into account the changes in the topology structure brought about by the switching status of the distribution network and the grid connection of distributed power sources. It utilizes distribution network topology analysis technology to establish a power supply reliability verification mechanism based on the distribution network topology from the perspectives of topology error prevention analysis and power flow analysis.

[0113] Optionally, topology error prevention analysis automatically identifies interoperable interlocked devices through topology search based on the state of the electrical island, the topological relationships between electrical equipment, and the basic rules of interlocking between devices in accordance with the "five protections" requirements. It does not rely on manual definition and automatically adapts to changes in the electrical equipment and power grid topology.

[0114] Optionally, power flow analysis is used to determine whether changes in the power grid operation mode will lead to line overload, voltage exceeding limits, bus power loss, or even changes in power flow direction.

[0115] Furthermore, verifying the power supply reliability based on the distribution network topology includes:

[0116] When the distribution network system receives the monitoring operation request result and the monitoring operation request result is approved, it obtains the distribution network-related data and equipment ledger information of the distribution network system control business scenario;

[0117] If the device is a main network device and a main network outgoing switch, then it checks whether the operation value of the main network device is the same as the current value. If the operation value is the same as the current value, it returns that the current device position is consistent with the operation value and ends the verification. If the operation value is different from the current value, it sends a topology request message to the topology service and checks whether the distribution network system receives the topology service return result. If the distribution network system receives the topology service return result, it parses and returns the topology service return result and verifies the controllability of the controlled object. If the distribution network system does not receive the topology service return result, it checks whether the waiting time exceeds the configured timeout period.

[0118] If the waiting time does not exceed the configured timeout, continue receiving the topology service return result; otherwise, return a timeout for waiting for the topology analysis result and end the verification.

[0119] If the device is a main network device and not a main network outgoing switch, the verification ends.

[0120] It should be noted that in this embodiment of the invention, the waiting time for receiving the topology service return result is 40 seconds, and the value of the waiting time can be selected according to the actual situation of the system settings; in this embodiment, the distribution network-related data and equipment ledger information obtained in the distribution network system control business scenario include equipment ID, operation value, and status.

[0121] Furthermore, this also includes:

[0122] If the device is not a main network device and the operation value is the same as the current value, then the current device position is returned as consistent with the operation value, and the verification ends. If the device is not a main network device and the operation value is different from the current value, then a topology request message is sent to the topology service, and it is determined whether the distribution network system has received the topology service return result. If the distribution network system has received the topology service return result, then the topology service return result is parsed and returned, and the controllability of the controlled object is verified. If the distribution network system has not received the topology service return result, then it is determined whether the waiting time has exceeded the configured timeout period.

[0123] If the waiting time does not exceed the configured timeout, continue receiving the topology service return result; otherwise, return a timeout for waiting for the topology analysis result and end the verification.

[0124] When the power supply reliability verification based on the distribution network topology passes, the controllability of the controlled object is verified and the source of the control service request is determined.

[0125] If the control service request originates from the distribution network, then the distribution network remote control basic parameter verification is invoked;

[0126] If the control service request originates from the main network, then the main network remote control basic parameter verification is invoked.

[0127] It should be noted that the controllability verification of the controlled object is carried out by acquiring data such as the primary equipment model, equipment ledger, communication parameters, and switch status data of the distribution network in real time. The verification is carried out from aspects such as the model integrity analysis of the system controlled object, terminal communication status, remote signaling status, and remote control interlocking. Incomplete equipment model data and abnormal equipment operation of the controlled object are filtered out, which effectively ensures the controllability of the controlled object and the accuracy of the control information from the source.

[0128] Specifically, if the control service request originates from the distribution network, then the call to verify the basic parameters of the distribution network remote control includes:

[0129] When the power supply reliability verification based on the distribution network topology passes, if the control service request originates from the distribution network, obtain relevant information about the distribution network equipment. The relevant equipment information includes the equipment ID and control value.

[0130] If the remote signaling value of the distribution network equipment is the same as the control value, record the reason for the verification failure and end the verification; otherwise, determine whether the data definitions of the verification equipment table and remote control related tables are valid.

[0131] If the data definitions in the equipment table and remote control related tables fail to pass the verification, record the reason for the failure and end the verification; otherwise, verify whether the operating status of the distribution network communication terminal passes the verification.

[0132] If the verification of the power distribution network communication terminal's operating status fails, record the reason for the failure and end the verification; otherwise, verify whether the equipment's remote signaling status passes.

[0133] If the remote signaling status of the equipment fails the verification, record the reason for the failure and end the verification; otherwise, verify whether the tagging passes the verification. If the tagging fails the verification, record the reason for the failure and end the verification; if the tagging passes the verification, the multi-dimensional safety verification of the cross-system multi-scenario control of the distribution network is completed.

[0134] Specifically, if the control service request originates from the main network, then the main network remote control basic parameter verification includes:

[0135] When the power supply reliability verification based on the distribution network topology passes, if the control service request originates from the main network, obtain relevant information about the main network devices. The relevant device information includes at least the device ID and the control value.

[0136] If the verification of the communication status of the main network equipment plant fails, record the reason for the failure and end the verification; otherwise, verify whether the circuit breaker meter allows manual remote control.

[0137] If manual remote control is not allowed for the circuit breaker calibration, record the reason for the calibration failure and end the calibration; otherwise, check whether the digital control table and the downlink remote control information table are consistent.

[0138] If the digital control table and the downlink remote control information table are inconsistent, record the reason for the failure and end the verification; otherwise, verify whether the equipment control value is consistent with the target value.

[0139] If the equipment control value matches the target value, record the reason for the verification failure and end the verification; otherwise, verify whether the circuit breaker remote signaling status passes.

[0140] If the circuit breaker remote signaling status verification fails, record the reason for the failure and end the verification; otherwise, verify whether the voltage level of the main grid equipment is 10kV or 20kV.

[0141] If the voltage level of the main grid equipment is not 10kV or 20kV, record the reason for the verification failure and end the verification; otherwise, verify whether the listing is approved.

[0142] If the verification fails, record the reason for the failure and end the verification process; if the verification passes, the multi-dimensional safety verification of the cross-system multi-scenario control of the distribution network is completed.

[0143] In this embodiment, the data definitions of the distribution network verification equipment table and remote control related table include point number, whether associated with terminal, etc.; the equipment remote signaling status includes operating condition exit / not actually measured / blocked / double-digit error / remotely controlling / remotely locked and uncontrollable; the verification tagging includes hanging inoperable, remotely locked, and prohibition of control separation / combination signs; the main network equipment remote signaling status includes operating condition exit / not actually measured / blocked / double-digit error / remotely controlling / remotely locked and uncontrollable; the verification tagging includes hanging inoperable, remotely locked, and prohibition of control separation / combination signs.

[0144] The above is an illustrative scheme of the multi-dimensional security verification method for cross-system multi-scenario control of distribution networks in this embodiment. It should be noted that the technical solution of this multi-dimensional security verification system for cross-system multi-scenario control of distribution networks belongs to the same concept as the technical solution of the aforementioned multi-dimensional security verification method for cross-system multi-scenario control of distribution networks. Details not described in detail in this embodiment can be found in the description of the aforementioned multi-dimensional security verification method for cross-system multi-scenario control of distribution networks.

[0145] This embodiment presents a multi-dimensional safety verification system for cross-system, multi-scenario control of distribution networks, including:

[0146] The data acquisition module is used to acquire multidimensional data of the distribution network system, including system control operation data, control business request data, distribution network related data, and equipment ledger information.

[0147] The first judgment module is used to determine whether the power distribution network dispatch control has passed the security verification mechanism based on multi-dimensional data of the power distribution network system.

[0148] The second judgment module is used to complete the multi-dimensional safety verification of the cross-system multi-scenario control of the distribution network if the distribution network dispatch and control meet the safety verification mechanism.

[0149] It should be noted that the multi-dimensional security verification system for cross-system multi-scenario control of distribution networks in this embodiment is based on the multi-dimensional security verification method for cross-system multi-scenario control of distribution networks. It adopts module engine driving, rapid data fusion and other means to build a security verification system with unified verification dimensions, scalable verification modules and loose coupling, which meets the access and sharing of security verification modules for cross-system multi-scenario control of distribution networks.

[0150] This embodiment also provides a computing device applicable to a multi-dimensional safety verification method for cross-system, multi-scenario control of power distribution networks, including:

[0151] The system includes a memory and a processor. The memory stores computer-executable instructions, and the processor executes these instructions to implement the multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks, as proposed in the above embodiments.

[0152] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, it implements the multi-dimensional safety verification method for cross-system multi-scenario control of the power distribution network as proposed in the above embodiment.

[0153] The storage medium proposed in this embodiment and the multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks proposed in the above embodiments belong to the same inventive concept. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0154] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0155] Example 2

[0156] Reference Figures 1-7 This is one embodiment of the present invention. Unlike the first embodiment, this embodiment uses a specific control business scenario as an example to verify the beneficial effects of the present invention.

[0157] For the control business scenario of this system, taking the load transfer control business scenario in the distribution network system as an example, before performing switching operations on the main distribution network switch, the load transfer control business scenario completes the safety verification before the main distribution network switch operation by calling control operation permission verification, monitoring operation verification, power supply reliability verification based on distribution network topology, and controllability verification of the controllable object. This effectively ensures the safe and reliable operation of the load transfer control business.

[0158] For cross-system control business scenarios, taking the cross-system forwarding remote control main network control business scenario in the distribution network system as an example, when processing control file requests transmitted across systems through the reverse isolation device, the present invention's method is invoked to realize the security verification of the control file request information transmission process and the verification of the timeliness and standardization of the control file information.

[0159] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-dimensional safety verification method for cross-system, multi-scenario control of power distribution networks, characterized in that, include: Acquire multidimensional data of the power distribution network system, including control service request data, system control operation data, power distribution network related data, and equipment ledger information; Based on multi-dimensional data from the power distribution system, determine whether the power distribution network dispatch and control passes the security verification mechanism; specifically including: When the control business scenario is a cross-system control business, the cross-system control based on file forwarding is checked; otherwise, the control operation control permissions are checked. When the control business scenario is a cross-system control business, if the cross-system control verification based on file forwarding passes, a pass log is recorded and the verification ends; otherwise, a failure log is recorded and the verification ends. When the control business scenario is the system control business, if the control operation control permission passes the verification, the pass log is recorded and the monitoring operation is verified; otherwise, the failure log is recorded and the verification ends. When the control operation permission passes the verification, the pass log is recorded and the monitoring operation is verified; if the monitoring operation passes the verification, the pass log is recorded and the power supply reliability based on the distribution network topology is verified; otherwise, the failure log is recorded and the verification ends. If the power supply reliability based on the distribution network topology passes the verification, record the pass log and verify the controllability of the controlled object; otherwise, record the fail log and end the verification. If the controllability verification of the controlled object passes, the multi-dimensional safety verification of cross-system multi-scenario control of the distribution network is completed; otherwise, a failure log is recorded and the verification ends. Among them, cross-system control verification based on file forwarding comprehensively considers the integrity, consistency, and security of control objects in different systems, and verifies the encryption and verification of files and control information based on improved MD5 encryption technology; verifies the timeliness and naming / format of files; verifies the access permission of controllable objects based on whitelist verification technology; and verifies the consistency and integrity of cross-system control objects. Control operation permission verification is based on predefined user and node information with control operations. When performing control operations on the system, it automatically verifies whether the user and node have control operation permissions by calling the permission management service. The monitoring operation verification is a process that verifies the monitoring node, user, and controlled object information for control business requests. When performing monitoring operations on the system, the process is verified by calling the permission management service and the human-machine interface. Power supply reliability verification based on distribution network topology: Based on the distribution network topology structure, and taking into account the topology changes brought about by the switching status of the distribution network and the grid connection of distributed power sources, a power supply reliability verification mechanism based on distribution network topology is established through topology error prevention analysis and power flow analysis. The controllability verification of the controlled object is carried out by real-time acquisition of the primary equipment model, equipment ledger, communication parameters and switch status data of the distribution network, and verification is performed from the aspects of model integrity analysis, terminal communication status, remote signaling status and remote control interlocking of the system controlled object. If the distribution network dispatch and control all meet the safety verification mechanism, then the multi-dimensional safety verification of the distribution network cross-system multi-scenario control is completed.

2. The multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks as described in claim 1, characterized in that, When the control business scenario is a cross-system control business, the cross-system control based on file forwarding is verified; Otherwise, the verification control operation control permissions include: When the control business scenario is a cross-system control business, the cross-system control based on file forwarding is verified; If the improved MD5 check for cross-system control based on file forwarding passes, then check the file's timeliness; otherwise, record the reason for the failure and end the check. If the document's timeliness verification passes, then verify the document's naming and / or format; otherwise, record the reason for the verification failure and end the verification process. If the file naming and / or format verification passes, check if the device is in the whitelist; otherwise, record the reason for the verification failure and end the verification process. If the device is in the whitelist, verify the device ledger information; otherwise, record the reason for the verification failure and end the verification process. If the equipment ledger information passes verification, then verify the equipment status; otherwise, record the reason for the failure and end the verification process. If the device status verification passes, the cross-system control verification based on file forwarding also passes, and the power supply reliability based on the distribution network topology is verified; otherwise, the reason for the verification failure is recorded and the verification ends.

3. The multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks as described in claim 2, characterized in that, The verification control operation control permissions include: When the control business scenario is the system control business, obtain the user and operation node information of the distribution network system control business scenario and verify whether the operation node is controllable; If the operation node is controllable, the verification passes and the user performing the operation is checked for control permissions; if the operation node is controllable, the operation node verification fails and the verification ends. If the user has the necessary control permissions, the control operation permission verification will pass, and the monitoring operation will be verified; otherwise, the control operation permission verification will fail, and the verification process will end.

4. The multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks as described in claim 3, characterized in that, The verification and monitoring operations include: When the control operation control authority passes the verification, obtain the monitoring and remote control information of the distribution network system control business scenario and the monitoring operation request result; If the distribution network system receives the monitoring operation request result and the monitoring operation request result is passed, then the monitoring operation verification is passed, and the power supply reliability based on the distribution network topology is verified. When the distribution network system receives the monitoring operation request result, if the monitoring operation request result fails, the verification ends. If the distribution network system does not receive the monitoring operation request result, it determines whether the waiting time exceeds the configured timeout. If the waiting time exceeds the configured timeout, the verification ends. If the waiting time does not exceed the configured timeout, it continues to obtain the monitoring operation request result.

5. The multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks as described in claim 1 or 4, characterized in that, Verifying the power supply reliability based on the distribution network topology includes: When the distribution network system receives the monitoring operation request result and the monitoring operation request result is approved, it obtains the distribution network-related data and equipment ledger information of the distribution network system control business scenario; If the device is a main network device and a main network outgoing switch, then determine whether the operation value of the main network device is the same as the current value; if the operation value is the same as the current value, return that the current device position is consistent with the operation value, and end the verification. If the operation value is different from the current value, a topology request message is sent to the topology service, and it is determined whether the distribution network system has received the return result from the topology service; if the distribution network system has received the return result from the topology service, the return result from the topology service is parsed and returned, and the controllability of the controlled object is verified; if the distribution network system has not received the return result from the topology service, it is determined whether the waiting time has exceeded the configured timeout. If the waiting time does not exceed the configured timeout, continue receiving the topology service return result; otherwise, return a timeout for waiting for the topology analysis result and end the verification. If the device is a main network device and not a main network outgoing switch, the verification ends.

6. The multi-dimensional safety verification method for cross-system multi-scenario control of distribution networks as described in claim 5, characterized in that, Also includes: If the device is not a main network device and the operation value is the same as the current value, then return that the current device location is consistent with the operation value and end the verification. If the device is not a main network device and the operation value is different from the current value, a topology request message is sent to the topology service, and it is determined whether the distribution network system has received the return result of the topology service. If the distribution network system receives a topology service return result, it parses and returns the topology service return result, and verifies the controllability of the controlled object; if the distribution network system does not receive a topology service return result, it determines whether the waiting time exceeds the configured timeout period. If the waiting time does not exceed the configured timeout, continue to receive the results returned by the topology service; Otherwise, return to wait for the topology analysis result to time out, and end the verification; When the power supply reliability verification based on the distribution network topology passes, the controllability of the controlled object is verified and the source of the control service request is determined. If the control service request originates from the distribution network, then the distribution network remote control basic parameter verification is invoked; If the control service request originates from the main network, then the main network remote control basic parameter verification is invoked.

7. A multi-dimensional safety verification system for cross-system, multi-scenario control of power distribution networks, applied to the method described in any one of claims 1-6, characterized in that, include: The data acquisition module is used to acquire multidimensional data of the distribution network system, including control business request data, system control operation data, distribution network related data, and equipment ledger information. The first judgment module is used to determine whether the power distribution network dispatch control has passed the security verification mechanism based on the multi-dimensional data of the power distribution network system. The second judgment module is used to complete the multi-dimensional safety verification of the cross-system multi-scenario control of the distribution network if the distribution network dispatch and control meet the safety verification mechanism.

8. An electronic device, comprising: Memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, they implement the steps of the multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the multi-dimensional safety verification method for cross-system multi-scenario control of power distribution networks as described in any one of claims 1 to 6.

Images