CN113132196B - Process data protection method and device for bus system of wind generating set - Google Patents
Process data protection method and device for bus system of wind generating set Download PDFInfo
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- CN113132196B CN113132196B CN201911406536.2A CN201911406536A CN113132196B CN 113132196 B CN113132196 B CN 113132196B CN 201911406536 A CN201911406536 A CN 201911406536A CN 113132196 B CN113132196 B CN 113132196B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention provides a process data protection method and device for a bus system of a wind generating set. The method comprises the following steps: collecting process data through a controller corresponding to a control substation on a bus system, wherein the process data are input/output data of the controller; determining whether a control substation with the same installation position of the corresponding controller exists; aiming at control substations corresponding to controllers with the same installation position, dividing the control substations corresponding to the controllers with the same installation position into different synchronization units based on the grade of the control substations; and when the bus system is abnormal, synchronous protection is carried out on the process data in the same synchronous unit. Through adopting this disclosure, can guarantee independence, authenticity and the security of process data to the maximize to improve wind generating set control system's stability and security.
Description
Technical Field
The present disclosure generally relates to the field of wind power generation technologies, and in particular, to a method and an apparatus for protecting process data of a bus system of a wind turbine generator system.
Background
EtherCAT (Ethernet control automation technology) is a field bus system of an open architecture based on Ethernet, and the EtherCAT establishes a new standard for the real-time performance and the topological flexibility of the system, and simultaneously reduces the use cost of the field bus, and the EtherCAT is characterized by high-precision equipment synchronization, optional cable redundancy and a functional safety protocol (SIL 3).
At present, an EtherCAT bus is a common bus type in a control system of a large permanent magnetic direct-drive synchronous generator set, because the EtherCAT bus has excellent network performance (especially high communication speed). The EtherCAT bus does not have to receive data packets at each connection point and then decode and copy the process data so the controller is always able to obtain the most up-to-date data. However, when the EtherCAT bus is abnormal, the data acquired in the previous period is maintained, so that data distortion or failure may be caused, and the unpredictable control risk is caused to equipment and overall machine control.
Therefore, a method for ensuring the validity of data in the case of an exception of the EtherCAT bus is absent at present.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides a method and an apparatus for protecting process data of a bus system of a wind turbine generator system.
According to the present disclosure, a method for process data protection of a wind turbine generator system bus system is provided, which may include: collecting process data through a controller corresponding to a control substation on a bus system, wherein the process data are input/output data of the controller; determining whether a control substation with the same installation position of the corresponding controller exists; aiming at control substations corresponding to controllers with the same installation position, dividing the control substations corresponding to the controllers with the same installation position into different synchronization units based on the grade of the control substations; and when the bus system is abnormal, synchronous protection is carried out on the process data in the same synchronous unit.
According to an embodiment of the present disclosure, the step of performing synchronization protection on the process data in the same synchronization unit may include: identifying a source and a value range of process data within a same synchronization unit; classifying the process data in the same synchronization unit according to the source and the numerical range of the process data; the protection settings of the process data are made based on the classification of the process data within the same synchronization unit.
According to an embodiment of the present disclosure, the step of dividing the control substations corresponding to the controllers having the same installation location into different synchronization units based on the level of the control substations may include: respectively setting the process data of different control substations to be zero and calculating the maximum deviation between the output power and the rated power of the wind generating set; determining levels of different control substations based on the maximum deviation calculated for different control substations; the control substations of different levels are divided into different synchronization units.
According to an embodiment of the present disclosure, the method may further include: and dividing the control substations corresponding to the controllers which are positioned at the same installation position and collect the process data with the coupling relationship into the same synchronous unit.
According to an embodiment of the present disclosure, the method may further include: and dividing the control substations corresponding to the controllers with different installation positions into different synchronous units.
According to an embodiment of the present disclosure, the method may further include: and carrying out synchronous protection on the control substations corresponding to the controllers which are positioned at different installation positions and acquire the process data with the coupling relation.
According to the present disclosure, there is provided a process data protection device for a wind turbine generator system bus system, the device may include: the system comprises a process data acquisition unit and a control unit, wherein the process data acquisition unit acquires process data through a controller corresponding to a control substation on a bus system, and the process data is input/output data of the controller; an installation position determination unit that determines whether there is a control sub-station having the same installation position of the corresponding controller; a synchronization unit dividing unit that divides, for control substations corresponding to controllers having the same installation position, the control substations corresponding to the controllers having the same installation position into different synchronization units based on the level of the control substations; and the synchronous protection unit is used for synchronously protecting the process data in the same synchronous unit when the bus system is abnormal.
According to one embodiment of the present disclosure, the synchronization protection unit may perform the following operations: identifying a source and a value range of process data within a same synchronization unit; classifying the process data in the same synchronization unit according to the source and the numerical range of the process data; the protection settings of the process data are made based on the classification of the process data within the same synchronization unit.
According to one embodiment of the present disclosure, the synchronization unit division unit may perform the following operations: respectively setting the process data of different control substations to be zero and calculating the maximum deviation between the output power and the rated power of the wind generating set; determining levels of different control substations based on the maximum deviation calculated for different control substations; the control substations of different levels are divided into different synchronization units.
According to an embodiment of the present disclosure, the synchronization unit dividing unit may divide the control substations corresponding to the controllers which acquire the process data having the coupling relationship, which are in the same installation position, into the same synchronization unit.
According to an embodiment of the present disclosure, the synchronization unit dividing unit may divide the control substations corresponding to the controllers having different installation positions into different synchronization units.
According to one embodiment of the present disclosure, the synchronous protection unit may perform synchronous protection on the control substations corresponding to the controllers which acquire process data having a coupling relationship and are located at different installation positions.
According to the present disclosure, a wind power plant is provided, comprising a process data protection device of a wind power plant bus system according to any of the preceding embodiments.
According to the present disclosure, there is provided a system comprising at least one computing device and at least one storage device storing instructions, wherein the instructions, when executed by the at least one computing device, cause the at least one computing device to perform the method of process data protection of a wind park bus system of any of the preceding embodiments.
According to the present disclosure, there is provided a computer-readable storage medium storing instructions that, when executed by at least one computing device, cause the at least one computing device to perform a method of process data protection of a wind turbine generator set bus system according to any of the preceding embodiments.
Through adopting this disclosure, can guarantee independence, authenticity and the security of process data to the maximize to improve wind generating set control system's stability and security. In addition, customized protection setting can be carried out on the process data of the wind generating set after the bus system is abnormal, so that the reliable protection on key equipment and the whole machine is realized when the key data is distorted, and the safety of the conventional equipment and the stability and the safety of the control of the whole machine are ensured when the conventional data is distorted.
Drawings
These and/or other aspects and advantages of the present disclosure will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present disclosure, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a process data protection method of a wind turbine generator set bus system according to an embodiment of the present disclosure;
FIG. 2 shows a schematic structural diagram of a process data protection arrangement of a wind park bus system according to an embodiment of the present disclosure; and
FIG. 3 illustrates a block diagram of a system including at least one computing device and at least one storage device storing instructions, according to an embodiment of the disclosure.
Detailed Description
As required, specific embodiments of the present disclosure are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
In the EtherCAT bus system, the slave station devices (or slave station devices) can form various branch structures, independent device branches can be placed in a control cabinet or a machine module, and the branch structures are connected by a main line. The synchronization characteristics of the EtherCAT bus synchronization unit refer to: the read-write instruction of the same synchronization unit is contained in the same synchronization counter, and when any one substation (or slave station) in the synchronization unit has abnormal state or abnormal communication, the process data acquired by all the substations in the synchronization unit keeps the value of the previous period unchanged. The synchronization characteristic can distort or fail important control data in the wind generating set process data transmitted through the EtherCAT bus, so that control deviation is caused due to collection deviation of the key control data.
A process data protection method and apparatus of a wind turbine generator system bus system according to embodiments of the present disclosure will be described below with reference to the accompanying drawings.
Fig. 1 is a flow chart 100 of a process data protection method of a wind park bus system according to an embodiment of the disclosure.
In step S101, process data may be collected by a controller corresponding to a control substation on the bus system. The process data may be input/output data of the controller. Taking an EtherCAT bus system of the wind generating set as an example, process data in the EtherCAT bus system can be acquired through a controller corresponding to a control substation on the EtherCAT bus system, for example, the rotating speed and the acceleration of a blade can be acquired through a controller in a cabin cabinet, or the water cooling temperature and the like can be acquired through a controller in a water cooling cabinet.
Subsequently, in step S102, it may be determined whether there is a control substation whose installation location of the corresponding controller is the same. That is, it is possible to determine whether such a control substation exists (the installation positions of the controllers corresponding to the control substations are the same). If there is a control substation with the same installation location of the controller, it may proceed to step S104, otherwise to step S103.
In step S103, the control substations corresponding to the controllers having different installation locations may be divided into different synchronization units. In an example, the control substation corresponding to the controller installed in the nacelle cabinet and the control substation corresponding to the controller installed in the water-cooled cabinet may be divided into different synchronization units. In addition, the control substations corresponding to the controllers which are arranged at different installation positions and collect the process data with the coupling relationship (for example, the wind direction data and the wind speed data with the coupling relationship) can be synchronously protected.
In step S104, the control sub-stations corresponding to the controllers having the same mounting position are divided into different synchronization units based on the level of the control sub-station. In one example, the process data of different control substations can be set to zero and the maximum deviation of the output power of the wind generating set from the rated power can be calculated; determining the levels of different control substations based on the maximum deviation of the output power and the rated power calculated aiming at different control substations; the different levels of control substations are divided into different synchronization units. For example, the process data of the control sub-station corresponding to the controller capable of acquiring the rotating speed of the blades is set to zero and the maximum deviation between the output power of the wind generating set and the rated power is calculated, and if the calculated maximum deviation between the output power of the wind generating set and the rated power exceeds a specific threshold value, the control sub-station corresponding to the controller capable of acquiring the rotating speed of the blades can be determined as a high-level control sub-station, otherwise, the control sub-station can be determined as a low-level control sub-station. In an example, a control substation corresponding to a controller that collects process data such as the rotational speed and acceleration of a blade, the wind direction, the wind speed, and the like may be set as a high-level control substation, and a control substation corresponding to a controller that collects process data such as the water-cooling pressure or the yaw position, and the like may be set as a low-level control substation, and further, for a control substation corresponding to a controller that is installed at the same position, the high-level control substation corresponding to a controller that collects process data such as the rotational speed and acceleration of a blade, the wind direction, the wind speed, and the like may be divided into one synchronization unit, and the low-level control substation corresponding to a controller that collects process data such as the water-cooling pressure or the yaw position, and the like may be divided into another synchronization unit. In addition, the control substation corresponding to the controller for collecting the safety chain signal (or other process data which has no great influence on the output power of the wind generating set but plays a key role in the overall control of the wind generating set) can be determined as a high-level control substation. In an example, a high-level control sub-station corresponding to a controller for acquiring process data such as the rotation speed and acceleration of a blade, the wind direction, the wind speed and the like and a control sub-station corresponding to a controller for acquiring a safety chain signal can be divided into one synchronization unit. Although only the high-level control substation and the low-level control substation are exemplified with respect to the level of the control substation herein, it will be understood by those skilled in the art that three or more levels of control substations may be provided as necessary.
In addition, the control substations corresponding to the controllers which are located at the same installation position and collect the process data with the coupling relationship can be divided into the same synchronization unit. For example, in the wind control, wind direction data and wind speed data have a coupling relationship, and control substations corresponding to a controller for collecting wind direction data and a controller for collecting wind speed data at the same installation position may be divided into the same synchronization unit.
After the division of the synchronization unit is completed, it may proceed to step S105, and at step S105, it may be determined whether an abnormality occurs in the bus system. If it is determined in step S105 that an abnormality occurs in the bus system, it proceeds to step S106, otherwise step S105 is repeatedly performed. In one example, step S105 may be continuously performed to continuously determine whether an abnormality occurs in the bus system. In another example, step S105 may be performed periodically to periodically determine whether an abnormality occurs in the bus system.
In step S106, when an exception occurs in the bus system, synchronous protection is performed on the process data in the same synchronization unit. In one example, the source and value range of process data within the same synchronization unit may be identified; the process data in the same synchronization unit can be classified according to the source and the numerical range of the process data; the protection settings for the process data may be based on the classification of the process data within the same synchronization unit. For example, the process data may be classified into critical equipment operation data and general equipment operation data according to the source of the process data, or may be classified into process data in which the collection area covers a positive or negative range and process data in which the collection area does not cover a positive or negative range according to the numerical range of the process data. In addition, the process data can be classified into protection data and control data according to the purpose of the process data in the overall control of the wind generating set, the process data can be classified into process data with a coupling relation and process data without the coupling relation according to the control relation between the process data, or the process data can be classified into human control data and non-human control data according to the attribute of the process data.
The critical equipment operation data includes, but is not limited to, data related to the safety control of the whole machine (for example, generator speed, converter state feedback signal, safety chain feedback signal, wind speed, etc.) in the critical equipment such as a generator, a converter, a safety chain, etc. Conventional plant operational data includes, but is not limited to, data related to individual plant operational control in water cooled, hydraulic, yaw, etc. plants (e.g., state feedback for water cooled pumps, hydraulic pump feedback, yaw motor feedback, etc.). The protection data refers to collected data (such as acceleration signals, water cooling pressure, power supply feedback and the like) directly used for safety protection of the whole machine or equipment. The control data refers to data (for example, wind direction data, yaw position data, and the like) collected for controlling the operation process of the whole machine or equipment. Data collected over a positive or negative range in a region refers to data whose value range includes both positive and negative numbers (e.g., wind speed data having a value range of-32767 to 32767). Regarding data having a coupling relationship, for example, wind direction data and wind speed data have a coupling relationship in wind control, and if protection settings for the wind direction data and the wind speed data are not synchronized, malfunction with respect to wind may occur. The artificial control data comprises action feedback signals of manually operating the unit, such as manual startup and shutdown, maintenance and the like.
In particular, corresponding protection settings may be made according to the classification of the process data. In an example, the zero clearing protection setting can be performed on the key device operation data and the regular device operation data in the same synchronization unit; protection threshold value trigger setting type protection setting can be carried out on protection data in the same synchronous unit (for example, in the aspect of temperature protection, if the maximum temperature protection set value of each current device is 160 ℃ (for example, the temperature protection set value of a generator is 160 ℃, the temperature protection set value of a water cooling device is 80 ℃, and the temperature protection set values of other devices are all less than 160 ℃), when a bus system is abnormal, the temperature value can be set to be a temperature value (for example, 165 ℃) higher than 160 ℃ (namely, the maximum current temperature protection set value), so that all devices can trigger temperature faults); protection setting can be carried out on control data in the same synchronous unit in a control logic protection mode (for example, the wind direction can be set to be a value which is just opposite to the wind so as to avoid false operation of the wind); settings to change its artificial attributes may not be made for artificial control class data that is within the same synchronization unit (i.e., to maintain its original action state, e.g., to maintain the shutdown button in an unactuated state if it was in an unactuated state prior to the bus system anomaly, or to maintain the maintenance switch in an actuated state if it was in an actuated state prior to the bus system anomaly); protection range extremum setting protection can be performed on data covering positive and negative ranges of an acquisition region in the same synchronization unit (for example, in the case of synchronization protection using source data, the data range of the wind speed is-32767 to 32767, and in the case of protection, the data can be set to-32767 to 32767, but cannot be set to 0, or in the case of protection using parsed data (for example, data after analog-to-digital conversion or digital-to-analog conversion), the data range of the wind speed can be 0 to 75, and in this case, the wind speed data can be set to 0).
It should be noted that the method for performing corresponding protection setting according to the classification of the process data is not only applicable to the EtherCAT bus system, but also applicable to the CAN bus system, the Profibus bus and other serial ports.
In addition, the process data protection method of the wind generating set bus system according to the embodiment of the disclosure may further include: the communication sub-station, the sub-station with special function or the sub-station where the process data needing special monitoring is located are divided into independent synchronous units. The special function substation may include, but is not limited to, a DP protocol conversion substation, an external serial module substation, etc. Dividing the substation where the process data needing special monitoring is located into independent synchronization units means that: if there is process data that needs to be monitored separately, the substations that collect that process data can be set up individually as one synchronization unit.
As described above, the process data may be input/output data of the controller corresponding to the control substation on the bus system. However, the process data protection method of the wind turbine generator system bus system according to the embodiments of the present disclosure may also be applied only to digital input type process data, analog input type process data, and control given data, while digital output type process data and analog output type process data may be self-protected by a watchdog.
All processes need not be performed in their entirety and are to be understood as examples of the types of processes that may be performed to implement the elements of the present invention. Additional steps may be added or removed from the exemplary process as desired.
Fig. 2 shows a block diagram of a process data protection device 200 of a wind park bus system according to an embodiment of the disclosure.
As shown in fig. 2, a process data protection device 200 of a wind turbine generator set bus system according to an embodiment of the present disclosure may include: a process data acquisition unit 201, which acquires process data through a controller corresponding to a control substation on the bus system, wherein the process data may be input/output data of the controller; an installation position determination unit 202 that determines whether there is a control sub-station having the same installation position of the corresponding controller; a synchronization unit division unit 203 that divides the control substations corresponding to the controllers having the same installation location into different synchronization units based on the level of the control substation; and the synchronous protection unit 204 is used for synchronously protecting the process data in the same synchronous unit when the bus system is abnormal.
The synchronization protection unit 204 may perform the following operations: identifying a source and a value range of process data within a same synchronization unit; classifying the process data in the same synchronization unit according to the source and the numerical range of the process data; the protection settings of the process data are made based on the classification of the process data within the same synchronization unit.
The synchronization unit division unit 203 may perform the following operations: respectively setting the process data of different control substations to be zero and calculating the maximum deviation of the output power and the rated power of the wind generating set; determining levels of different control substations based on the maximum deviation calculated for different control substations; the different levels of control substations are divided into different synchronization units.
The synchronization unit dividing unit 203 may divide the control substations corresponding to the controllers which acquire the process data having the coupling relationship and are located at the same installation position into the same synchronization unit.
The synchronization unit dividing unit 203 may divide the control substations corresponding to the controllers having different installation locations into different synchronization units.
The synchronous protection unit 204 can perform synchronous protection on the control substations corresponding to the controllers which are located at different installation positions and collect the process data with the coupling relationship.
The specific operations shown above in conjunction with fig. 1 may be respectively performed by corresponding units in the apparatus shown in fig. 2, and details of the specific operations will not be described herein again.
FIG. 3 illustrates a schematic block diagram of a system 300 comprising at least one computing device and at least one storage device storing instructions, according to an embodiment of the disclosure.
As shown in fig. 3, a system 300 provided according to an embodiment of the present disclosure may include at least one computing device (e.g., a processor) 301 and at least one storage device (e.g., a memory) 302 storing instructions (e.g., a computer program), wherein the instructions, when executed by the at least one computing device 301, cause the at least one computing device 301 to perform the process data protection method of the wind park bus system as described in any of the preceding embodiments.
The computing devices may be deployed in servers or clients, as well as on node devices in a distributed network environment. Further, the computing device may be a PC computer, tablet device, personal digital assistant, smart phone, web application, or other device capable of executing the set of instructions. The computing device need not be a single computing device, but can be any device or collection of circuits capable of executing the instructions (or sets of instructions) described above, individually or in combination. The computing device may also be part of an integrated control system or system manager, or may be configured as a portable electronic device that interfaces with local or remote (e.g., via wireless transmission). In a computing device, a processor may include a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a programmable logic device, a special purpose processor system, a microcontroller, or a microprocessor. By way of example, and not limitation, processors may also include analog processors, digital processors, microprocessors, multi-core processors, processor arrays, network processors, and the like.
The operations described in the process data protection method of a wind turbine generator system bus system according to an exemplary embodiment of the present invention may be implemented in a software manner or may be implemented in a hardware manner. Furthermore, these operations may be implemented in a combination of hardware and software. The processor may execute instructions or code stored in one of the memory components, which may also store data. The instructions and data may also be transmitted or received over a network via a network interface device, which may employ any known transmission protocol. The memory component may be integral to the processor, e.g., having RAM or flash memory disposed within an integrated circuit microprocessor or the like. Further, the storage component may comprise a stand-alone device, such as an external disk drive, storage array, or any other storage device usable by a database system. The storage component and the processor may be operatively coupled or may communicate with each other, such as through an I/O port, a network connection, etc., so that the processor can read files stored in the storage component. In addition, the computing device may also include a video display (such as a liquid crystal display) and a user interaction interface (such as a keyboard, mouse, touch input device, etc.). All components of the computing device may be connected to each other via a bus and/or a network.
The operations involved in the process data protection method of a wind park bus system according to an exemplary embodiment of the present invention may be described as various interconnected or coupled functional blocks or functional diagrams. However, these functional blocks or functional diagrams may be equally integrated into a single logic device or operated on by non-exact boundaries. For example, as described above, a process data protection device of a wind park bus system is provided comprising at least one computing device and at least one memory device storing instructions, wherein the instructions, when executed by the at least one computing device, cause the at least one computing device to perform steps S101 to S106 as described with reference to fig. 1. That is, the process data protection method of the wind turbine generator system bus system shown in fig. 1 may be performed by the computing device described above. Since the process data protection method of the wind turbine generator system bus system has been described in detail in fig. 1, the contents of this part of the present invention are not described again.
Furthermore, a wind power plant is also provided according to an embodiment of the present disclosure, which includes the process data protection device of the wind power plant bus system as described above.
There is additionally provided, in accordance with an embodiment of the present disclosure, a computer-readable storage medium storing instructions that, when executed by at least one computing device, cause the at least one computing device to perform the method of process data protection of a wind turbine generator set bus system according to any of the preceding embodiments.
Through adopting this disclosure, can guarantee independence, authenticity and the security of process data to the maximize to improve wind generating set control system security. In addition, customized protection setting can be performed on process data of the wind generating set after the bus system is abnormal, so that reliable protection on key equipment and the whole machine during key data distortion is realized, and the safety of the conventional equipment and the stability and the safety of the whole machine control during conventional data distortion are ensured.
While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms of the disclosure. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the disclosure. Furthermore, features of various implementing embodiments may be combined to form further embodiments of the disclosure.
Claims (9)
1. A method for protecting process data of a bus system of a wind generating set is characterized by comprising the following steps:
acquiring process data through a controller corresponding to a control substation on a bus system, wherein the process data is input/output data of the controller;
determining whether a control substation with the same installation position of the corresponding controller exists;
dividing the control substations corresponding to the controllers with the same installation position into different synchronization units according to the grade of the control substations aiming at the control substations corresponding to the controllers with the same installation position;
when the bus system is abnormal, the process data in the same synchronous unit is synchronously protected,
the step of dividing the control substations corresponding to the controllers with the same installation position into different synchronization units based on the level of the control substations comprises the following steps:
respectively setting the process data of different control substations to be zero and calculating the maximum deviation between the output power and the rated power of the wind generating set;
determining levels of different control substations based on the maximum deviation calculated for different control substations;
the control substations of different levels are divided into different synchronization units.
2. The method for process data protection of a wind park bus system according to claim 1, wherein the step of synchronously protecting process data within the same synchronization unit comprises:
identifying a source and a value range of process data within a same synchronization unit;
classifying the process data in the same synchronization unit according to the source and the numerical range of the process data;
the protection settings of the process data are made based on the classification of the process data within the same synchronization unit.
3. The process data protection method of a wind turbine generator set bus system of claim 1, the method further comprising: and dividing the control substations corresponding to the controllers which are positioned at the same installation position and collect the process data with the coupling relationship into the same synchronous unit.
4. The process data protection method for a wind turbine generator set bus system of claim 1, the method further comprising: and dividing the control substations corresponding to the controllers with different installation positions into different synchronous units.
5. The process data protection method of a wind turbine generator set bus system of claim 4, the method further comprising: and carrying out synchronous protection on the control substations corresponding to the controllers which are positioned at different installation positions and acquire the process data with the coupling relation.
6. A process data protection device for a wind turbine generator system bus system, the device comprising:
the system comprises a process data acquisition unit and a control unit, wherein the process data acquisition unit acquires process data through a controller corresponding to a control substation on a bus system, and the process data is input/output data of the controller;
an installation position determination unit that determines whether or not there is a control substation having the same installation position of the corresponding controller;
a synchronization unit dividing unit that divides, for the control substations corresponding to the controllers having the same mounting position, the control substations corresponding to the controllers having the same mounting position into different synchronization units based on the level of the control substations;
a synchronous protection unit for synchronously protecting the process data in the same synchronous unit when the bus system is abnormal,
wherein the synchronization unit division unit performs the following operations:
respectively setting the process data of different control substations to be zero and calculating the maximum deviation between the output power and the rated power of the wind generating set;
determining levels of different control substations based on the maximum deviation calculated for different control substations;
the different levels of control substations are divided into different synchronization units.
7. A wind park according to claim 6, wherein the wind park comprises a process data protection device of the wind park bus system.
8. A system comprising at least one computing device and at least one storage device storing instructions, wherein the instructions, when executed by the at least one computing device, cause the at least one computing device to perform a process data protection method of a wind park bus system as claimed in any of claims 1 to 5.
9. A computer-readable storage medium storing instructions, characterized in that the instructions, when executed by at least one computing device, cause the at least one computing device to perform a process data protection method of a wind park bus system according to any of claims 1 to 5.
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