Safety Control Method, Control Device and New Energy Power Station of Power Generation Equipment

Abstract

The present disclosure provides a safety control method, a control device and a new energy power station for a power generation device. The safety control method includes: sending a control test instruction to the power generation device in a control test state to observe the response status of the power generation device to the control test instruction; configuring control parameters of the power generation device according to the observed response status, wherein the control parameters are associated with the control test instruction; authenticating the configured control parameters to generate and store preset authentication information; and monitoring an actual control instruction to be sent to the power generation device according to the stored preset authentication information.

Description

Technical Field

[0001] The present disclosure relates to the field of wind power generation, and particularly to a safety control method, medium, control device and new energy power station for power generation equipment. Background Art

[0002] Currently, for the control safety of power production equipment or power generation equipment in new energy power stations, protection is usually carried out on the power generation equipment side based on electrical principles. However, the correctness and safety of control instructions issued to the power generation equipment lack verification, resulting in the easy execution of incorrect control instructions outside the scope covered by electrical protection, thus causing significant losses to the stable operation of new energy power stations.

[0003] On the other hand, due to the particularity of the network settings in new energy power stations, the production network of the power station is isolated from the Internet, and Internet transmission instructions cannot directly enter the production network. The application scenarios of the Internet are difficult to apply to the power production environment, and it is difficult to perform safety control on the power generation equipment of the power station through remote control of the Internet. Summary of the Invention

[0004] The purpose of the embodiments of the present disclosure is to provide a safety control method, computer-readable storage medium, control device and new energy power station for power generation equipment, which can ensure the effectiveness of control instructions issued to the power generation equipment and the legality of control parameters of the power generation equipment, thereby ensuring the safe operation of the power generation equipment in the new energy power station.

[0005] According to an embodiment of the present disclosure, a safety control method for power generation equipment is provided. The method includes: sending a control test instruction to the power generation equipment in the control test state to observe the response status of the power generation equipment to the control test instruction; configuring the control parameters of the power generation equipment according to the observed response status, where the control parameters are associated with the control test instruction; authenticating the configured control parameters to generate and store preset authentication information; and monitoring the actual control instructions to be sent to the power generation equipment according to the stored preset authentication information.

[0006] According to an embodiment of the present disclosure, a computer-readable storage medium storing a computer program is provided. When the computer program is executed by a processor, the safety control method for power generation equipment according to the present disclosure is implemented.

[0007] According to an embodiment of the present disclosure, a control device is provided. The control device includes: a processor; a memory storing a computer program, and when the computer program is executed by the processor, the safety control method for power generation equipment according to the present disclosure is implemented.

[0008] According to an embodiment of the present disclosure, a new energy power station is provided. The new energy power station includes the control device according to the present disclosure.

[0009] The safety control method, computer-readable storage medium, control device and new energy power station of a power generation device according to an embodiment of the present disclosure can at least achieve the following technical effects: By performing security authentication on control information such as control instructions based on digital encryption and verification technologies, and at the same time configuring a complete set of business processes for the safety control of new energy power station equipment to form a closed-loop management of the safety control of the power generation device, by ensuring the effectiveness of control instructions, the legality of control parameters, and the correctness of control paths, it plays a role in preventing control risks in advance, thereby greatly improving the safety factor of the operation of the power generation device and ensuring the stable operation of the entire new energy power station, no longer limited to traditional electrical protection and five-prevention verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Through the following description in conjunction with the drawings, the above and other objects and features of the present disclosure will become clearer.

[0011] Figure 1 is a flowchart of a safety control method of a power generation device according to an embodiment of the present disclosure;

[0012] Figure 2 is another flowchart of a safety control method of a power generation device according to an embodiment of the present disclosure;

[0013] Figure 3 is another flowchart of a safety control method of a power generation device according to an embodiment of the present disclosure;

[0014] Figure 4 is another flowchart of a safety control method of a power generation device according to an embodiment of the present disclosure;

[0015] Figure 5 is a block diagram of a control device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The safe operation of a new energy power station (which can also be referred to as a new energy power plant) is crucial for production and construction. There are many internal electrical devices in a new energy power station, and most of them are high-temperature and high-pressure devices, and the equipment operation environment is very complex. And power production has high requirements for continuity and reliability. If a problem occurs in a certain link, it may cause damage to power generation equipment and production interruption, and may even cause personal injury. Therefore, safety is the basis of new energy power production. Among the safety influencing factors of a new energy power station, the safety control of power generation equipment is a very key factor. Therefore, the risk prevention of power generation equipment control is an important part of the safety management of the power station. The control of power generation equipment by the power station operation and maintenance personnel is mainly executed through the central monitoring system of the new energy power station.

[0017] Current safety precautions mainly focus on the power generation equipment side. By collecting relevant electrical states of the power generation equipment, it is judged whether to allow the issuance of control instructions. However, there is a lack of inspection on the correctness and legality of the issued control instructions, which easily leads to the situation that maintenance personnel issue incorrect instructions without being intercepted, thus bringing major safety hazards to power production.

[0018] The present invention proposes a safety control scheme for power generation equipment, which can perform safety authentication on control information such as control instructions based on digital encryption and verification technologies, and at the same time configure a complete set of business processes for the safety control of new energy power station equipment to form a closed-loop management of the safety control of power generation equipment, which is conducive to ensuring the effectiveness of control instructions, the legality of control parameters, and the correctness of control paths.

[0019] According to the safety control scheme of the present invention, it mainly starts from the central monitoring system side that controls the operation of the power generation equipment to ensure the effectiveness of the actual control instructions issued to the power generation equipment, the legality of control parameters, and the correctness of control paths. First, a control test of the power generation equipment is carried out, and the correctly configured control parameters are determined through the control test. Then, a digital authentication method is used to ensure that the control parameters are not tampered with. The safety control scheme according to the present invention can be used in combination with traditional protection measures on the power generation equipment side such as electrical protection and five-prevention verification, so as to ensure the safe operation of new energy power stations.

[0020] The following describes specific embodiments in conjunction with the accompanying drawings to help readers obtain a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be clear. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but rather can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0021] Figure 1 is a flowchart of a safety control method for a power generation equipment according to an embodiment of the present disclosure.

[0022] In step S101, a control test instruction is sent to the power generation equipment in the control test state to observe the response status of the power generation equipment to the control test instruction.

[0023] According to an embodiment of the present disclosure, the control test process of the power generation equipment may involve the following stages: (1) setting the control test state for the power generation equipment; (2) the power generation equipment enters the control test state; (3) authenticating the control parameters; (4) the power generation equipment exits the control test state; (5) the power generation equipment enters the actual operation state.

[0024] The working states of the power generation equipment may include working states such as the control test state and the actual operation state. To send a control test instruction to the power generation equipment, the power generation equipment needs to be placed in the control test state first. For example, the working state of the power generation equipment can be set to the control test state, and after the control test is completed, the working state of the power generation equipment can be set to the actual operation state. In addition, the control test state of the power generation equipment can be set to maintain a predetermined duration. In this way, by setting the corresponding predetermined duration for the control test state, the power generation equipment can automatically exit the control test state when the predetermined duration ends. For example, it can be automatically switched to the actual operation state. The operation and maintenance personnel can set the predetermined duration according to the actual test requirements to prevent the operation and maintenance personnel from forgetting to exit the control test state when the control test is completed and other problems caused thereby.

[0025] According to an embodiment of the present disclosure, status reading and setting can be performed according to the current working state of the power generation equipment. As Figure 2 shown, Figure 2 is another flowchart of the safety control method of the power generation equipment according to an embodiment of the present disclosure.

[0026] In step S201, the current working state of the power generation equipment can be obtained. For example, the current working state may be the actual operation state or the control test state, etc. In step S202, it can be determined whether the current working state of the power generation equipment is the control test state.

[0027] In response to the current working state of the power generation equipment being the control test state, step S203 can be executed to obtain the remaining duration of the control test state. By obtaining the remaining duration, the operation and maintenance personnel can be reminded of the end time of the control test state, and it can be prompted whether the operation and maintenance personnel need to extend the duration of the control test state. Since the control test state is set with a corresponding predetermined duration, it can also be known how long the control test state has lasted. In this way, the interaction friendliness regarding the control test state can be improved.

[0028] For example, if the remaining duration of the control test state is relatively short (for example, 5 minutes) and is not sufficient for the operation and maintenance personnel to complete the next control test (for example, the operation and maintenance personnel need the control test state to continue to maintain for 3 hours), at this time, the staff can extend the duration by an appropriate time (for example, extend it by 3 hours).

[0029] In response to the current working state of the power generation equipment not being the control test state, step S204 can be executed to set the current working state to the control test state and maintain the predetermined duration.

[0030] In an embodiment of the present disclosure, a person specifically responsible for controlling tests can use an independent service tool to set the control test status of a power generation device. The service tool is connected to the central monitoring system of the new energy power station in a wired or wireless manner, enabling access to the central monitoring system through the service tool, and then setting the control test status of the power generation device through the central monitoring system.

[0031] Optionally, a person specifically responsible for controlling tests can use the central monitoring system to set the control test status of the power generation device. Moreover, the central monitoring system can verify the operation permissions of the personnel, thereby preventing unauthorized personnel from wrongly setting the control test status.

[0032] The central monitoring system can provide a hardware interface or a software interface to realize reading and writing of the working status of the power generation device. For example, the number of the power generation device can be input through the device status reading interface of the central monitoring system to obtain the current working status of the power generation device corresponding to the number. If the current working status is the control test status, the remaining duration of the control test status can be obtained. If the current working status of the power generation device is the actual operation status, the number of the power generation device and the parameters for setting the control test status can be input through the device status setting interface of the central monitoring system. After the setting operation is completed, the central monitoring system can feedback the setting result to the operation and maintenance personnel. If the status setting fails, the feedback setting result can include the specific reason for the failure, thus facilitating the operation and maintenance personnel to solve the problem to achieve successful setting of the control test status.

[0033] After successfully setting the control test status of the power generation device, a status setting log can be generated through the service tool connected to the central monitoring system or through the central monitoring system, and the status setting log can be stored in the power station database, thereby helping to trace and analyze problems related to the status setting in the later stage. For example, the status setting log can include but is not limited to the following information: Classification: Business-level event → Control security → Control status setting; Description: including a summary part and a detailed part. The summary part describes how many power generation devices in the new energy power station have their control test status set, and the detailed part contains multiple records, respectively recording the name and number of each power generation device.

[0034] After completing the setting of the control test status and before sending a control test instruction to the power generation device in the control test status, a predetermined protection operation can be performed on the power generation device in the control test status to electrically isolate the power generation device from other power generation devices. In this way, it is possible to prevent the power generation device in the control test status from affecting other power generation devices.

[0035] Refer again to Figure 1In step S101, a control test instruction can be sent to the power generation device under the control test state to observe the response status of the power generation device to the control test instruction. In order to check whether the control test instruction sent from the central monitoring system to the power generation device is correct and effective, it is necessary to observe the response status of the power generation device to check relevant information such as the control parameters of the power generation device. According to an embodiment of the present disclosure, the instruction name, instruction code, instruction parameters, and instruction transmission path corresponding to the control test instruction and the power generation device can be checked by observing the response status, etc.

[0036] In step S102, according to the observed response status, the control parameters of the power generation device are configured, where the control parameters are associated with the control test instruction.

[0037] After sending a control test instruction to the power generation device through the central monitoring system, the response status of the power generation device including the test operation state can be observed by an observation device to confirm whether the control effect of the control test instruction on the power generation device is achieved.

[0038] According to an embodiment of the present disclosure, in response to the observed response status not matching the control test instruction, the control parameters of the power generation device can be configured until the response status matches the control test instruction. For example, if the observed response status does not match the control test instruction, it is necessary to timely analyze the reason for this problem, modify or configure the control parameters associated with the control test instruction until the control test instruction is successfully executed. At this time, it can be considered that the control parameter configuration of the power generation device is correct.

[0039] After completing the control parameter configuration, step S103 can be executed to authenticate the configured control parameters to generate and store preset authentication information. The authentication operation can be performed by an independent service tool connected to the central monitoring system or through the central monitoring system. For example, the service tool can process the configured control parameters by digital signature to generate preset authentication information and store the preset authentication information in the site database. In this way, the preset authentication information can be used for security control operations performed in the later actual operation stage.

[0040] According to an embodiment of the present disclosure, the configured control parameters can be connected into a long string in a predetermined format using a predetermined delimiter. The long string can include control parameters such as instruction name, instruction code, instruction parameters, and instruction transmission path, and can also include other associated control parameters involved in the display of the control instruction, such as the topological position and graphic element name in the configuration diagram, etc.

[0041] According to an embodiment of the present disclosure, the preset authentication information may include a preset authentication digest. The configured control parameters may be processed using a message digest algorithm to generate and store the preset authentication digest. For example, a long string in a predetermined format may be processed using a message digest algorithm (such as, MD4 message digest algorithm, MD5 message digest algorithm, etc.) to generate the preset authentication digest, and the preset authentication digest may be stored in the station database.

[0042] According to an embodiment of the present disclosure, the preset authentication information may further include a preset authentication code. The preset authentication digest may be processed using an encryption algorithm to generate and store the preset authentication code. For example, the preset authentication digest may be processed using the DES symmetric encryption algorithm to generate the preset authentication code, and the preset authentication code may be stored in the station database.

[0043] As described above, the preset authentication information may be stored in the station database, and the central monitoring system may obtain the stored preset authentication information by accessing the station database. According to an embodiment of the present disclosure, the stored preset authentication information may include a stored preset identifier and a preset authentication code corresponding to the preset identifier. The preset identifier is used to identify the control test instruction. For example, the preset identifier may include: the name of the control test instruction, the identification code of the control test instruction, etc.

[0044] In step S104, according to the stored preset authentication information, monitor the actual control instruction to be sent to the power generation equipment. The central monitoring system may utilize the authenticated preset authentication information to monitor in real time the actual control instruction to be issued during the actual operation of the power generation equipment.

[0045] Figure 3 is another flowchart of the safety control method for a power generation equipment according to an embodiment of the present disclosure.

[0046] In step S301, when the power generation equipment is in the actual operation state, obtain the actual control instruction to be sent to the power generation equipment. After the power generation equipment exits the control test state, it can be automatically switched to the actual operation state to normalize the operation of the power generation equipment, and unauthenticated actual control instructions are prohibited from being issued to the power generation equipment. For example, the current working state of the power generation equipment may be set to the actual operation state by using an independent service tool connected to the central monitoring system or through the central monitoring system, using the equipment status setting interface. When the power generation equipment is in the actual operation state, the central monitoring system may receive the actual control instruction input by the operation and maintenance personnel or the user through the input interface or the user interface.

[0047] In step S302, according to the stored preset authentication information, determine whether the actual control instruction is valid. For example, the instruction verification module of the central monitoring system may be used to verify whether the actual control instruction is valid. Examples of determining whether the actual control instruction is valid will be described below with reference to Figure 4 Describe an example of determining whether the actual control instruction is valid.

[0048] In response to determining that the actual control instruction is valid, step S303 can be executed to allow sending the actual control instruction to the power generation device. In response to determining that the actual control instruction is invalid, step S304 can be executed to prohibit sending the actual control instruction to the power generation device. In addition, in response to determining that the actual control instruction is valid, normal prompt information can be fed back to the operation and maintenance personnel or the user through the user interface of the central monitoring system to indicate that the input actual control instruction is valid. In response to determining that the actual control instruction is invalid, abnormal prompt information can be fed back to the operation and maintenance personnel or the user through the user interface of the central monitoring system to indicate that the input actual control instruction is invalid.

[0049] In this way, during the actual operation of the power generation device, before the actual control instruction is issued, the validity of the actual control instruction can be determined according to the pre-stored preset authentication information, so as to avoid the adverse consequences caused by incorrect actual control instructions being issued to the power generation device, thereby ensuring the safe operation of the power generation device.

[0050] Figure 4 It is another flowchart of the safety control method for a power generation device according to an embodiment of the present disclosure, showing an example of determining whether an actual control instruction is valid.

[0051] As Figure 4 shown, in step S401, the stored preset identifier is matched with the actual identifier corresponding to the actual control instruction. Each actual control instruction is set with a corresponding actual identifier, and according to the actual identifier, the preset identifier matching it can be retrieved in the substation database, so as to determine whether the stored preset identifier matches the actual identifier (step S402).

[0052] In response to the stored preset identifier not matching the actual identifier, it is determined that the actual control instruction is invalid (step S403). For example, if the preset identifier matching the actual identifier cannot be retrieved in the substation database, it is determined that the actual control instruction is invalid.

[0053] In response to the stored preset identifier matching the actual identifier, the stored preset authentication code corresponding to the preset identifier is decrypted to generate a decrypted authentication digest (step S404). For example, if the preset identifier matching the actual identifier is retrieved in the substation database, the preset authentication code corresponding to the retrieved preset identifier is decrypted to generate a decrypted authentication digest.

[0054] However, decryption is not necessarily successful. For example, the preset authentication code in the station database may be tampered with, resulting in a different preset authentication code from the originally stored one. The tampered preset authentication code cannot be decrypted normally, so there may be a decryption failure. Correspondingly, the actual authentication code matching the tampered preset authentication code cannot pass the verification, that is, it is determined that the actual control instruction corresponding to the actual authentication code is invalid.

[0055] In step S405, it is determined whether the decryption of the stored preset authentication code is successful. In response to the failure of decrypting the stored preset authentication code, it is determined that the actual control instruction is invalid (step S403). In response to the successful decryption of the stored preset authentication code, an actual authentication digest is generated according to the actual control parameters corresponding to the actual control instruction (step S406), and the decrypted authentication digest is matched with the actual authentication digest (step S407). For example, the actual authentication digest can be generated according to the actual control parameters corresponding to the actual control instruction. In this way, by decrypting the preset authentication code and generating the actual authentication digest according to the actual control parameters, the decrypted authentication digest and the actual authentication digest can be obtained. Furthermore, by determining whether the decrypted authentication digest matches the actual authentication digest (step S408), it is determined whether the actual control instruction is valid. In response to the match between the decrypted authentication digest and the actual authentication digest, it is determined that the actual control instruction is valid (step S409). In response to the non - match between the decrypted authentication digest and the actual authentication digest, it is determined that the actual control instruction is invalid (step S403). Since the actual control parameters of the power generation equipment may be modified, resulting in the non - correspondence between the actual control instruction and the modified actual control parameters, thus causing the non - match between the actual authentication digest corresponding to the actual control instruction and the decrypted authentication digest, the actual control instruction is invalid.

[0056] The following is described in combination with an application scenario example, but the present disclosure is not limited thereto. Before conducting a control test on a certain wind farm, the operation and maintenance personnel send a status setting instruction to the central monitoring system through a serviceable tool to set the booster station of the wind farm in a control test state. After completing the control test of the actual environment, the operation and maintenance personnel use the serviceable tool to perform control parameter authentication on all remote control measurement points of the booster station. One of the remote control points is as follows:

[0057] Wind farm name: X Wind Farm

[0058] Booster station name: X Wind Farm Booster Station

[0059] Booster station number: 100001901

[0060] Control point description: 1# common measurement and control PCS9705B - H2]33381 isolation switch_remote control 01

[0061] Control instruction: Close the switch

[0062] Dispatch Number: 33381

[0063] Graphic Element Name: Disconnector

[0064] Closed Position: 1# Common Measurement and Control PCS9705B-H2] 110kV PT Cabinet, Disconnector 33381 in Closed Position

[0065] Gateway Address: 192.168.0.1

[0066] Gateway Port: 8800

[0067] The above parameter information can be concatenated into a long string in a predetermined format through a service tool or a central monitoring system, and then the string is processed into a preset authentication digest through a message digest algorithm:

[0068] 833f333e4b4e53b3a091e3419bc3219b

[0069] The above preset authentication digest can be processed into a preset authentication code using an encryption algorithm and stored in the substation database. The preset authentication code is as follows:

[0070] fZEsPpS+ZoQCr60AuBtjKZl8gWpmT8VnlcjTs1Xza6w8aovwH9ONaQ==

[0071] The preset authentication code can be set with a corresponding preset identifier and stored together in the substation database. After completing the above control parameter authentication, a status setting instruction can be sent to the central monitoring system using a service tool to turn off the control test status of the step-up substation and make the step-up substation enter the normal actual operation state.

[0072] Users can send a "closing" instruction to the above remote control point through the central monitoring system as an actual control instruction. If all the control parameters of the above remote control point have not been modified, then the actual authentication digest generated by the central monitoring system according to the actual control parameters corresponding to the actual control instruction should be as follows:

[0073] 833f333e4b4e53b3a091e3419bc3219b

[0074] The central monitoring system searches the database for a matching preset identifier according to the actual identifier corresponding to the actual control instruction, retrieves the corresponding preset authentication code, and decrypts it to obtain the decrypted authentication digest as follows:

[0075] 833f333e4b4e53b3a091e3419bc3219b

[0076] The actual authentication digest is consistent with (i.e., matches) the decrypted authentication digest, indicating that the control parameter has not been tampered with, and allowing the actual control instruction ("closing" instruction) to be issued.

[0077] In addition, other users may mistakenly change the dispatching number of this remote control point to 33391 in the configuration diagram, and then this user issues a "closing" instruction for this remote control point as the actual control instruction. At this time, the actual authentication digest generated by the central monitoring system according to the actual control parameter corresponding to the actual control instruction is as follows:

[0078] 01ad63630a0fde77f79796cdfad208a0

[0079] The central monitoring system retrieves the preset authentication code of this remote control point from the substation database and decrypts it to obtain the decrypted authentication digest as follows:

[0080] 833f333e4b4e53b3a091e3419bc3219b

[0081] The two digests are inconsistent (i.e., do not match), indicating that the control parameter has been tampered with, and the actual control instruction is not allowed to be issued, and the central monitoring system can return an exception indication message.

[0082] As described above, the safety control method of the power generation equipment according to the present disclosure can realize the group monitoring, intensive management, centralized control, and professional operation and maintenance of new energy power stations, greatly improving the operation efficiency and benefits of the power stations, realizing "unattended operation with few operators on duty", and providing support for the remote centralized monitoring, control, and management of new energy power stations by power generation groups. The safety control method of the power generation equipment according to the present disclosure is applicable to multiple wind power, photovoltaic, and water conservancy new energy power stations, and can be applied to various power generation equipment or power equipment including wind turbines, inverters, busbar trunking systems, data acquisition units, and distribution transformers.

[0083] According to an embodiment of the present disclosure, there is also provided a computer-readable storage medium on which a computer program is stored, and when the computer program is executed, the safety control method of the power generation equipment according to the embodiment of the present disclosure is implemented.

[0084] In the embodiment of the present disclosure, the computer-readable storage medium may carry one or more programs, and when the computer program is executed, it can be implemented with reference to Figures 1 to 4The following steps are described: sending a control test instruction to a power generation device in a control test state to observe the response status of the power generation device to the control test instruction; configuring control parameters of the power generation device according to the observed response status, where the control parameters are associated with the control test instruction; authenticating the configured control parameters to generate and store preset authentication information; monitoring actual control instructions to be sent to the power generation device according to the stored preset authentication information.

[0085] A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In an embodiment of the present disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a computer program, and the computer program may be used by or in combination with an instruction execution system, apparatus, or device. The computer program included on the computer-readable storage medium may be transmitted by any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above. The computer-readable storage medium may be included in any device; it may also exist alone without being assembled into the device.

[0086] Figure 5 is a block diagram of a control device according to an embodiment of the present disclosure.

[0087] Referring to Figure 5 , a control device 5 according to an embodiment of the present disclosure may include a memory 51 and a processor 52. A computer program 53 is stored on the memory 51. When the computer program 53 is executed by the processor 52, a safety control method for a power generation device according to an embodiment of the present disclosure is implemented.

[0088] In an embodiment of the present disclosure, when the computer program 53 is executed by the processor 52, the operations of the safety control method for the power generation device described in Figures 1 to 4 may be implemented: sending a control test instruction to a power generation device in a control test state to observe the response status of the power generation device to the control test instruction; configuring control parameters of the power generation device according to the observed response status, where the control parameters are associated with the control test instruction; authenticating the configured control parameters to generate and store preset authentication information; monitoring actual control instructions to be sent to the power generation device according to the stored preset authentication information.

[0089] Figure 5 The control device shown is merely an example and should not impose any limitations on the functions and scope of use of the embodiments of the present disclosure. It can be understood with reference to Figures 1 to 4 the safety control method of the power generation device according to the present disclosure described Figure 5 each operation performed by the control device shown. For the sake of brevity, it will not be elaborated here.

[0090] In addition, the present disclosure also provides a new energy station (which may also be referred to as a new energy power station). The new energy station may include a control device according to the embodiments of the present disclosure, and the control device is used to implement the safety control of the power generation device in the new energy station.

[0091] As mentioned above with reference to Figures 1 to 5 the safety control method, computer-readable storage medium, control device, and new energy station of the power generation device according to the embodiments of the present disclosure. However, it should be understood that: Figure 5 the control device and its various components shown in Figure 5 may be respectively configured as software, hardware, firmware, or any combination of the above for performing specific functions. The control device shown in

[0092] is not limited to including the components shown above, but some components can be added or deleted as needed, and the above components can also be combined. Due to the large number and variety of new energy station devices, there are significant differences in the control technologies of different types of devices. Even for the same type of device, different technical implementations are required according to different measurement and control protocols due to different manufacturers, which poses great challenges to the safety control of new energy station devices. Especially during the later management and maintenance of the control functions of power generation devices, in order to prevent incorrect instruction tampering, manual verification of numerous configuration information is required, which incurs huge economic costs. Moreover, since manual processing cannot be accurate and error-free, it is impossible to effectively prevent the issuance of incorrect control instructions. The on-site operation and maintenance personnel have a strong demand for safety control authentication. The safety control method of the power generation device according to the present disclosure can at least partially solve the above problems and greatly reduce the relevant management costs of the new energy station. At the same time, the safety control method of the power generation device according to the present disclosure can eliminate the negligence of manual comparison, effectively prevent the issuance of incorrect control instructions, provide safety guarantees for the normal operation of power generation devices, and significantly improve the user experience.

[0093] New energy power stations have extremely high safety requirements for the control of power generation equipment. This disclosure provides a set of strategies for the security management of control information including control instructions, control parameters, and communication links, which can prevent the parameters or data related to control instructions from being wrongly tampered with, and ensure the correctness of the actual control instructions issued by the central monitoring system by comparing or matching digital signatures before the actual control instructions are issued. The technical solution proposed in this disclosure performs security protection management from the source of generation of control instructions, so that the actual control instructions issued to power generation equipment are all legal and valid, and thereby improves the overall security of the operation of new energy power station equipment.

[0094] By using the safety control method, computer-readable storage medium, control device, and new energy power station according to the embodiments of this disclosure, at least one of the following technical effects can be achieved: Through security authentication of control information such as control instructions based on digital encryption and verification technologies, and at the same time configuring a complete set of business processes for the safety control of new energy power station equipment to form a closed-loop management of the safety control of power generation equipment. By ensuring the effectiveness of control instructions, the legality of control parameters, and the correctness of control paths, it plays a role in preventing control risks in advance, thereby greatly improving the safety factor of the operation of power generation equipment and ensuring the stable operation of the entire new energy power station, no longer being limited to traditional electrical protection and five-prevention verification.

[0095] The control logics or functions executed by the respective components or controllers in the central monitoring system and the control device can be represented by flowcharts or similar diagrams in one or more of the drawings. These drawings provide representative control strategies and / or logics, and the representative control strategies and / or logics can be implemented using one or more processing strategies (such as, event-driven, interrupt-driven, multitasking, multithreading, etc.). Therefore, the respective steps or functions shown can be executed in the order shown, executed in parallel, or omitted in some cases. Although not always explicitly shown, those of ordinary skill in the art will recognize that the one or more steps or functions shown can be repeatedly executed according to the specific processing strategy used.

[0096] Although the present disclosure has been shown and described with reference to the preferred embodiments, those skilled in the art should understand that various modifications and transformations can be made to these embodiments without departing from the spirit and scope of the present disclosure defined by the claims.

Claims

1. A safety control method for a power generation device, characterized in that, The method includes: Sending a control test instruction to the power generation device in a control test state to observe the response of the power generation device to the control test instruction; Configuring the control parameters of the power generation device according to the observed response condition, where the control parameters are associated with the control test instruction; Authenticating the configured control parameters to generate and store preset authentication information; Monitoring the actual control instruction to be sent to the power generation device according to the stored preset authentication information, wherein, the monitoring of the actual control instruction to be sent to the power generation device according to the stored preset authentication information includes: When the power generation device is in an actual operation state, obtaining the actual control instruction to be sent to the power generation device; Determining whether the actual control instruction is valid according to the stored preset authentication information, where the stored preset authentication information includes a stored preset identifier, wherein, the determining whether the actual control instruction is valid according to the stored preset authentication information includes: Determining whether the actual control instruction is valid by matching the stored preset identifier with the actual identifier corresponding to the actual control instruction.

2. The method according to claim 1, wherein The control test state of the power generation device is set to maintain a predetermined duration.

3. The method according to claim 1, wherein The method further includes: Obtaining the current working state of the power generation device; In response to the current working state of the power generation device being the control test state, obtaining the remaining duration of the control test state.

4. The method according to claim 1, wherein Before sending a control test instruction to the power generation device in a control test state, the method further includes: Performing a predetermined protection operation on the power generation device in a control test state to electrically isolate the power generation device from other power generation devices.

5. The method according to claim 1, wherein The configuring of the control parameters of the power generation device according to the observed response condition includes: In response to the observed response condition not matching the control test instruction, configuring the control parameters of the power generation device until the response condition matches the control test instruction.

6. The method according to claim 1, wherein The preset authentication information further includes a preset authentication digest, The authenticating of the configured control parameters to generate and store preset authentication information includes: Processing the configured control parameters using a message digest algorithm to generate and store a preset authentication digest.

7. The method according to claim 6, characterized in that, The preset authentication information further includes a preset authentication code, The authenticating of the configured control parameters to generate and store preset authentication information further includes: Processing the preset authentication digest using an encryption algorithm to generate and store a preset authentication code.

8. The method according to claim 1, wherein The stored preset authentication information further includes a preset authentication code corresponding to the preset identifier, The determining whether the actual control instruction is valid according to the stored preset authentication information includes: In response to the stored preset identifier not matching the actual identifier, determining that the actual control instruction is invalid; In response to the stored preset identifier matching the actual identifier, decrypting the stored preset authentication code corresponding to the preset identifier to generate a decrypted authentication digest.

9. The method according to claim 8, wherein The determining whether the actual control instruction is valid according to the stored preset authentication information further includes: In response to the decryption of the stored preset authentication code failing, determining that the actual control instruction is invalid; In response to successful decryption of the stored preset authentication code, generate an actual authentication digest based on the actual control parameters corresponding to the actual control instruction, and match the decrypted authentication digest with the actual authentication digest; In response to the decrypted authentication digest matching the actual authentication digest, determine that the actual control instruction is valid; In response to the decrypted authentication digest not matching the actual authentication digest, determine that the actual control instruction is invalid.

10. The method according to claim 1, characterized in that, The monitoring of the actual control instruction to be sent to the power generation equipment according to the stored preset authentication information further includes: In response to determining that the actual control instruction is valid, allow the actual control instruction to be sent to the power generation equipment; In response to determining that the actual control instruction is invalid, prohibit the actual control instruction from being sent to the power generation equipment.

11. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the safety control method of the power generation equipment as described in any one of claims 1 to 10.

12. A control device, characterized in that, The control device includes: A processor; A memory storing a computer program, which when executed by the processor, implements the safety control method of the power generation equipment as described in any one of claims 1 to 10.

13. A new energy power station, characterized in that, The new energy power station includes the control device as described in claim 12.

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