CN112367200A - Simulation system and method of stability control device - Google Patents
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Abstract
The application discloses a simulation system and a method of a stability control device, which comprises the following steps: a special simulation device and an actual stable control device; the special simulation device is used for sending the preset channel configuration information to the actual stability control device; the actual stability control device is used for sending a communication frame to the special simulation device after receiving the preset channel configuration information, and if the communication frame is a command frame, the special simulation device executes a corresponding outlet action signal according to the received command frame. The stable control device simulation method is flexible in configuration and simple in arrangement, and can be applied to factory acceptance, simulation test and field debugging of the stable control device in batches.
Description
Technical Field
The application relates to the technical field of power system stability control, in particular to a simulation system and method of a stability control device.
Background
The safety and stability control system (hereinafter referred to as "stability control system") of the power system is a system formed by two or more safety and stability control devices (hereinafter referred to as "stability control devices") of plant stations through communication equipment, and is an important facility of a second defense line for ensuring the safe and stable operation of the power system. The transmission of information such as tide, running state, element fault and the like of a plurality of elements in the system is realized among the stable control devices of each station of the stable control system through a power system communication network, and concentrated or dispersed load cutting and load cutting measures are adopted when a power grid has serious faults so as to ensure the safe and stable running of the power system. The stability control system can be divided into a control main station, a control sub-station, an execution station and the like according to functions.
When a plurality of plant stations of the stability control system are jointly tested at present, the execution stations used for executing the control commands of the system are large in number and simple in function and often do not participate in joint debugging or testing, so that the functional test of the system is incomplete, the matching problem among some control main stations, control sub-stations and execution stations is discovered during operation, and the reliable operation of the stability control system is seriously influenced; on the other hand, a plurality of stability control master stations are in certain contact with each other, and in field joint debugging, because the stability control system where one stability control master station is located is still in a running state, the stability control system cannot quit participating in joint debugging, so that the strategy function test of the stability control system is incomplete.
Disclosure of Invention
The application provides a simulation system and method of a stability control device, and solves the technical problems that a stability control main station is difficult to carry out controllable joint regulation, and the reliability of matching between the control main station and a control substation and between the control main station and an execution station is poor.
In view of the above, a first aspect of the present application provides a simulation system of a stability control device, the system including:
a special simulation device and an actual stable control device;
the special simulation device is used for sending preset channel configuration information to the actual stability control device;
and the actual stability control device is used for sending a communication frame to the special simulation device after receiving the preset channel configuration information, and if the communication frame is a command frame, the special simulation device executes a corresponding outlet action signal according to the received command frame.
Optionally, the special simulation device includes a plurality of communication interfaces, and a plurality of the communication interfaces are simultaneously connected to one of the actual stability control devices, or the plurality of the communication interfaces are respectively connected to a plurality of the actual stability control devices.
Optionally, the dedicated simulation device includes a plurality of output channels, and the output channels simultaneously correspond to one of the actual stability control devices connected to the dedicated simulation device, or the output channels respectively correspond to a plurality of actual stability control devices connected to the dedicated simulation device.
Optionally, the interactive interface is configured to configure output channels of the dedicated simulation apparatus, and display configuration information of each output channel, so that the configured dedicated simulation apparatus simulates outputs of multiple types of actual stability control apparatuses, where the multiple types include stability control apparatuses that control a master station, a control substation, and an execution station. .
Optionally, the dedicated simulation device is in communication connection with the actual stability control device through an HDLC communication protocol.
Optionally, the special simulation apparatus is further configured to perform correctness check on the received communication frame, and if the communication frame is a correct frame, determine whether the communication frame is a command frame.
A second aspect of the present application provides a method for simulating a stability control device, where the method includes:
carrying out communication address matching, communication verification and frame length matching on a communication frame received from the actual stability control device;
if the communication frame address and the frame length are matched and meet the preset channel configuration information, judging the communication frame according to the preset channel configuration information;
and if the communication frame is a command frame, executing the action outlet signal corresponding to the command frame.
Optionally, before performing communication address matching, communication verification, and frame length matching on the communication frame received from the actual stability control apparatus, the method further includes:
and sending preset channel configuration information to an actual stability control device, so that the actual stability control device feeds back a communication frame after receiving the preset channel configuration information.
Optionally, when the received communication frame is a correct frame, the received communication frame receiving data is updated and the communication frame is displayed; and when the output channel is interrupted, displaying the data as a preset default value or the data before the output channel is interrupted.
Optionally, the multiple output channels are configured according to preset channel configuration information.
According to the technical scheme, the method has the following advantages:
the application provides a simulation system of a stability control device, which comprises a special simulation device and an actual stability control device; the special analog device is used for sending preset digital information to the actual stability control device; the actual stability control device is used for sending the action command information to the special simulation device after receiving the preset digital information, so that the special simulation device executes the corresponding outlet action signal after receiving the action command information.
According to the application, the command information sent by the actual stability control devices is received by the special simulation device, the special simulation device outputs corresponding outlet action signals according to the received command information, corresponding tests are executed, and the special simulation device can simulate the functions of the actual stability control devices. The stable control device simulation method is flexible in configuration and simple in setting, and can be applied to factory acceptance, simulation test and field debugging of the stable control device in batches.
Drawings
FIG. 1 is a system architecture diagram of one embodiment of a dedicated simulation apparatus of the present application;
FIG. 2 is a flow diagram of a method in one embodiment of a dedicated simulation method of the present application;
fig. 3 is a flowchart illustrating processing of a received communication frame according to preset channel configuration information in an embodiment of a dedicated simulation method according to the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a block diagram of an information processing system according to an embodiment of the present invention, as shown in fig. 1, where fig. 1 includes: a special simulation device and an actual stable control device;
the actual stability control device is used for sending preset channel configuration information to the actual stability control device;
the actual stability control device is used for sending a communication frame to the special simulation device after receiving the preset channel configuration information, and if the communication frame is a command frame, the special simulation device executes a corresponding outlet action signal according to the received command frame.
It should be noted that the dedicated simulation device may send preset channel configuration information to the actual stability control device, the actual stability control unit may send a communication frame to the dedicated simulation device according to the received preset channel configuration information, and the dedicated simulation device may analyze the communication frame according to the preset channel configuration information, so as to execute an action corresponding to the communication frame (for controlling a test object or performing a system test), and output an outlet action signal including the action from the output channel.
According to the method and the device, a special simulation device receives communication frames sent by a plurality of actual stability control devices, outputs corresponding outlet action signals according to the received communication frames, executes corresponding tests, enables the special simulation device to simulate the functions of the actual stability control devices, enables the special simulation device to simulate the output of various actual stability control devices, and comprises the stability control devices for controlling a main station, a control substation and an execution station. The stable control device simulation method is flexible in configuration and simple in setting, and can be applied to factory acceptance, simulation test and field debugging of the stable control device in batches.
In a specific embodiment, the dedicated simulation device includes a plurality of communication interfaces, and the plurality of communication interfaces are simultaneously connected to one actual stability control device, or the plurality of communication interfaces are respectively connected to a plurality of corresponding actual stability control devices.
It should be noted that, the dedicated simulation device may include a plurality of communication interfaces, and the plurality of communication interfaces may be connected to one actual stability control device in many-to-one manner; the device can also be connected with a plurality of actual stability control devices one by one; the special simulation device and the actual stability Control device can communicate through optical fibers, the optical fiber communication supports a High-Level Data Link Control (HDLC) protocol, and communication frames sent between the special simulation device and the actual stability Control device include normal frames and command frames (the normal frames are communication frame Data sent when the special simulation device is not started or is not controlled and a system test is performed, and the command frames are Data sent when the special simulation device is started and starts to perform Control and a system test).
In a specific embodiment, the dedicated simulation device includes a plurality of output channels, and the output channels simultaneously correspond to one actual stability control device connected to the dedicated simulation device, or the output channels respectively correspond to a plurality of actual stability control devices connected to the dedicated simulation device.
It should be noted that, in the present application, the dedicated analog device may include a plurality of output channels, and when the communication interfaces of the dedicated analog device in the system are all connected to an actual stability control device, the plurality of output channels may all be used to output an outlet action signal of the actual stability control device; when a plurality of communication interfaces of the special simulation device in the system are respectively connected with a plurality of corresponding actual stability control devices, a plurality of output channels respectively correspond to the plurality of actual stability control devices connected with the special simulation device, and output of outlet action signals corresponding to the plurality of actual stability control devices from the corresponding output channels is realized.
In a specific embodiment, the system further includes an interactive interface, configured to configure output channels of the dedicated simulation devices, and display configuration information of each output channel, so that the configured dedicated simulation devices simulate outputs of multiple types of actual stability control devices, where the multiple types include stability control devices that control the master station, the control substation, and the execution station.
It should be noted that, in the present application, the outlet action signal logic of the output channel of the dedicated simulation device may be configured through the interactive interface according to the preset channel configuration information, that is, the dedicated simulation device may compare the received communication frame with the action signal logic in the preset channel configuration information, and when the communication frame is a command frame, determine the control action corresponding to the command frame, so as to output the control action in the form of the outlet action signal, thereby implementing a control object or completing a corresponding system test.
The above is an embodiment of the apparatus of the present application, and a flowchart of a specific example of processing a received communication frame according to preset channel configuration information in the present application is shown in fig. 3:
specifically, table 1 shows parameter configurations of individual channels of the dedicated analog device, each channel of the dedicated analog device supports 16-interval power data configurations (several power data may be actually set as required), and if the dedicated analog device is configured as an execution station, the transmission data of the channel is formed through parameter configurations such as priority. As shown in table 1, table 1 is preset channel configuration information, and configuration examples 1 and 2 show 2 optional embodiment configuration methods:
TABLE 1 configuration information table for each channel
Configuration example 1:
the configuration method when the special simulation device simulates the stability control device of the execution station to send information comprises the following steps:
according to items 1, 3 and 4 of the configuration parameters, the first word of the normal frame can be obtained to be 0x5564, and no command frame is sent;
according to items 7 and 9 of the configuration parameters, the 3 rd word of the normal frame is 0 xF;
according to the items 36, 38, 39, 40, 57 and 58 of the configuration parameters, the data can be sent in three frames with the frame sequence numbers of 0, 1 and 2; sending 16 prioritized power data and total cutable and total live cutable data.
The power data according to priority needs to be obtained according to the values of power 1-16 and priority and combining configuration parameters 37: the negative power is obtained by not sending comprehensive calculation, and the calculation principle is as follows:
1) arranging all the numerical values of the power 1-16 according to the priority from small to large;
2) the power value is not counted in 0, and the power value is not counted in negative;
3) the power values with the same priority are added as power data of the priority.
4) The total switchable power data is obtained by adding all current power data with the priority being not 0 and not negative.
5) The total real cutting data is executed only when a remote command is received, 0 is filled when no command is received, and when the remote cutting command is received, the load actually cut is calculated and summed to obtain the total real cutting data.
Table 2 configuration example 1 calculation of transmission power data table
According to the items 2 and 5 of the configuration parameters, if the frame length is 12 in the embodiment and the configuration is a sum check, the checksum of the frame is the inverse code (taking 16 lower bits) of the cumulative sum of the 1 st transmitted data to the 11 th data.
According to the above configuration, the transmission frame of example 1 is configured as table 3, and is cyclically transmitted in three frames in table 3.
Table 3 configuration example 1 transmit frame list
As configuration example 2, according to items 1, 3 and 4 of the configuration parameters, the first word of the normal frame is 0x550A, and the first word of the command frame is 0x 990A;
according to the items 6, 7, 8 and 9 of the configuration parameters, the 2 nd word and the 3 rd word of the normal frame can be 0, and the 2 nd word and the 3 rd word are respectively 0x003C and 0xffc3 when the command frame is sent;
according to items 6, 20, 21, 22 and 23 of the configuration parameters, it can be obtained that the 2 nd and 3 rd words of the normal frame and the command frame are both 0, and the 4 th to 6 th words are 250, 300, -350 and 400 respectively when the command frame is sent.
According to the items 2 and 5 of the configuration parameters, if the frame length is 8 in the embodiment and the configuration is sum check, the checksum of the frame is the inverse code (taking 16 lower bits) of the cumulative sum of the 1 st transmitted data to the 7 th data. According to the above configuration, the transmission frame of example 2 is configured as in table 4.
Table 4 configuration example 2 transmit frame list
The special simulation device is provided with a command trigger button in each channel, and after the button is pressed down, the device fixedly sends out a configured command message, wherein the command duration of each trigger is 5s, namely 3000 frames (1.667 ms/frame).
An example received frame configuration is:
after the special simulation device receives the communication frame sent from the actual stability control device, firstly, the correctness of the frame is checked, which comprises the following steps:
(1) checking the communication address, wherein whether the address information contained in the communication frame is consistent with item 59 in table 1, if not, the error frame is received and is not processed;
(2) whether the sum of the communication check and the item 62 check is consistent with the check rule defined by the item 62 in the table 1 or not is judged, if not, an error frame is received and is not processed;
(3) and checking the frame length, judging whether the total length of the frame is matched with the item 2 in the table 1, if not, considering that an error frame is received, and not processing.
After the verification processing is completed, if the received communication frame is a correct frame, normal data frame and command frame calculation is performed. The normal frame and the command frame are distinguished according to the frame header, i.e., 0x55 is considered as a normal frame and 0x99 is considered as a command frame.
If the received communication frame is a normal frame, updating and displaying the received data; and if the output channel is interrupted, displaying the data as a default value of 0 or the data before the interruption of the output channel according to the setting of the 64 th item of the configuration parameter.
If the received communication frame is a command frame, confirmation of a double word or a single word at the time of command is first performed, as determined according to the configurations of items 60 and 61 of table 1.
(1) A two word command: 1 command contains 2 words, the 1 st word is a command, and the 2 nd word is the code reversal of the 1 st word; if the configuration example 1 contains 1 command, the command communicates the 2 nd word, the 3 rd word is the inverse code of the command, the sum of the 2 nd word and the 3 rd word must be equal to 0xFFFF, otherwise the command is considered invalid;
(2) single word command: the command is a single word. As example 2 is configured, 2 commands are included, the 1 st command is to communicate the 2 nd word, and the 1 st command is to communicate the 3 rd word.
After receiving the command frame, the special simulation device determines whether to switch according to the turn or the volume according to the item 63 of the configuration parameters in the table 1, and calculates and exports the command frame.
Wherein the principle of volume cutting is as follows:
(1) when a plurality of commands are triggered simultaneously or successively, selecting a large value of the command as a cutting instruction value;
(2) the power combinations that satisfy the minimum over-cut are selected in order of priority.
The dedicated analog device is configured with 16 sets of outlets, corresponding to power data 1-power data 16, respectively. When the resection object is obtained by calculation according to the volume-based resection and the round resection, the corresponding outlet is driven and fed back to the actual control object or the primary system test model.
Two specific configuration examples are as follows:
1. as in configuration embodiment 1, if the message content of the received command frame is:
0x990A 0x00030xfffC 0x00000x00000x00000x00000x00000x00000x00000x00000x66F5
the message can correctly pass the frame length, the communication address and the check sum, is judged to be a command frame, is configured to be a double-word command, passes double-word anti-code check, and needs to be cut into 3 rounds according to the 2 nd communication word; according to the priority configuration of table 1, the power data corresponding to power 1-4 is cut off, driving outlets 1, 2, 3, 4.
2. As in configuration embodiment 2, if the message content of the received command frame is:
0x99140x012C 0x01900x00000x00000x00000x000F 0x6420
the message can correctly pass the frame length, the communication address and the checksum verification, is judged to be a command frame, and according to the configuration of a single word command, the command value corresponding to the 2 nd communication word is 300, the command value corresponding to the 2 nd communication word is 400, the power data 1 and the power data 2 are selected to be cut off, and the outlet 1 and the outlet 2 are driven.
The message can correctly store the received data information, for example, the 7 th word, and the channel is refreshed according to the message when being normal, namely 15; when the channel is interrupted, the pre-interrupt state 15 is maintained according to the configuration parameters 64 of table 1.
The above is an embodiment of the apparatus of the present application, and the present application further provides an embodiment of a simulation method of a stability control apparatus, as shown in fig. 2, where fig. 2 includes:
201. carrying out communication address matching, communication verification and frame length matching on a communication frame received from the actual stability control device;
202. if the communication frame address and the frame length are matched and meet the preset channel configuration information, judging the communication frame according to the preset channel configuration information;
203. and if the communication frame is a command frame, executing the action export signal corresponding to the command frame.
In a specific embodiment, before performing communication address matching, communication verification, and frame length matching on a communication frame received from an actual stability control device, the method further includes:
and sending the preset digital information to the actual stability control device, so that the actual stability control device receives the preset channel configuration information and then feeds back the preset channel configuration information to the communication frame.
In a specific embodiment, the present application further comprises:
and configuring the plurality of output channels according to preset channel configuration information.
The application provides a simulation system and a simulation method of a stability control device, which can simulate the communication and logic functions of various stability control devices and can replace the actual stability control device to participate in the function joint regulation of the stability control system. The implementation method provided by the application is flexible in configuration and simple in setting, and can be applied to factory acceptance, simulation test and field debugging of the stability control device in batches.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A simulation system of a stability control device, comprising:
a special simulation device and an actual stable control device;
the special simulation device is used for sending preset channel configuration information to the actual stability control device;
and the actual stability control device is used for sending a communication frame to the special simulation device after receiving the preset channel configuration information, and if the communication frame is a command frame, the special simulation device executes a corresponding outlet action signal according to the received command frame.
2. The simulation system of the stability control device according to claim 1, wherein the dedicated simulation device comprises a plurality of communication interfaces, and a plurality of the communication interfaces are simultaneously connected to one of the actual stability control devices, or the plurality of communication interfaces are respectively connected to a plurality of the actual stability control devices.
3. The simulation system of a stability control device according to claim 2, wherein the dedicated simulation device comprises a plurality of output channels, and the output channels simultaneously correspond to one of the actual stability control devices connected to the dedicated simulation device, or the output channels respectively correspond to a plurality of actual stability control devices connected to the dedicated simulation device.
4. The simulation system of a stability control device according to claim 1, further comprising:
and the interactive interface is used for configuring the output channels of the special simulation device and displaying the configuration information of each output channel, so that the configured special simulation device simulates the output of various types of actual stability control devices, wherein the various types comprise the stability control devices of a control main station, a control substation and an execution station.
5. The simulation system of a stability control device according to claim 1, further comprising: and the special simulation device is in communication connection with the actual stability control device through an HDLC communication protocol.
6. The simulation system of a stability control device according to claim 1, wherein the dedicated simulation device is further configured to perform correctness check on the received communication frame, and if the communication frame is a correct frame, determine whether the communication frame is a command frame.
7. A method for simulating a stability control device is characterized by comprising the following steps:
carrying out communication address matching, communication verification and frame length matching on a communication frame received from the actual stability control device;
if the communication frame address and the frame length are matched and meet the preset channel configuration information, judging the communication frame according to the preset channel configuration information;
and if the communication frame is a command frame, executing the action outlet signal corresponding to the command frame.
8. The simulation method of a stability control device according to claim 7, wherein before the performing communication address matching, communication verification, and frame length matching on the communication frame received from the actual stability control device, the method further comprises:
and sending preset channel configuration information to an actual stability control device, so that the actual stability control device feeds back a communication frame after receiving the preset channel configuration information.
9. The simulation method of the stability control device according to claim 7, wherein when the received communication frame is a correct frame, the received communication frame receiving data is updated and the communication frame is displayed; and when the output channel is interrupted, displaying the data as a preset default value or the data before the output channel is interrupted.
10. The method for simulating a stability control device according to claim 7, further comprising:
and configuring a plurality of output channels according to the preset channel configuration information.
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