阅读说明：本技术 一种站间双通道冗余配置的稳控装置及数据处理方法 (Stability control device for inter-station dual-channel redundancy configuration and data processing method ) 是由 徐光虎 李龙龙 邱建 任祖怡 李鹏 夏尚学 黄磊 王鹏翔 邓韦斯 王君超 吴斌 于 2020-11-28 设计创作，主要内容包括：本发明公开了一种站间双通道冗余配置的稳控装置及数据处理方法,装置包括通道处理模块A1、通道处理模块A2、逻辑处理模块B1、逻辑处理模块B2和决策模块。其中,通道处理模块A1负责第一路通道数据的接收和发送,并监视通道状态；通道处理模块A2负责第二路通道数据的接收和发送,并监视通道状态；逻辑处理模块B1使用一路通道数据进行逻辑运算；逻辑处理模块B2使用另一路通道数据进行逻辑运算；决策模块控制逻辑处理模块的通道数据输入和校验逻辑处理模块输出控制指令的一致性。本发明对稳控系统站间通道和逻辑处理进行了冗余配置,保证了稳控装置输出控制指令的准确性,有效提高稳控系统运行的安全性。(The invention discloses a stability control device for interstation dual-channel redundancy configuration and a data processing method. The channel processing module a1 is responsible for receiving and sending the first channel data, and monitoring the channel status; the channel processing module A2 is responsible for receiving and sending the second channel data and monitoring the channel state; the logic processing module B1 uses one path of channel data to perform logic operation; the logic processing module B2 uses the other channel data to perform logic operation; the decision module controls the consistency of the channel data input of the logic processing module and the output control instruction of the check logic processing module. The invention carries out redundant configuration on the channels and logic processing between the stable control system stations, ensures the accuracy of the stable control device for outputting control instructions and effectively improves the operation safety of the stable control system.)

1. A stability control device for interstation dual-channel redundancy configuration is characterized by comprising a channel processing module A1, a channel processing module A2, a logic processing module B1, a logic processing module B2 and a decision module; the channel processing module A1, the channel processing module A2, the logic processing module B1 and the logic processing module B2 are respectively linked with the decision module, the logic processing module B1 is connected with the first channel through the channel processing module A1, and the logic processing module B2 is connected with the second channel through the channel processing module A2;

the channel processing module a1 is responsible for receiving and sending the first channel data, monitoring the operating state of the channel, and sending the channel self-check information to the decision module;

the channel processing module A2 is used for receiving and sending the second channel of channel data, monitoring the operation state of the channel and sending the channel self-checking information to the decision module;

the logic processing module B1 is used for performing logic operation by using one channel of data, and the formed normal state data is directly sent out by the channel processing module A1; the decision module is also used for generating a control instruction according to the established strategy table and sending the control instruction to the decision module;

the logic processing module B2 is used for performing logic operation by using the other path of channel data, and the formed normal state data is directly sent out by the channel processing module A2; the decision module is also used for generating a control instruction according to the established strategy table and sending the control instruction to the decision module;

the decision module is used for controlling the channel data input of the logic processing modules B1 and B2 and verifying the consistency of the control instructions output by the logic processing modules B1 and B2.

2. A data processing method is realized based on the stability control device of the interstation dual-channel redundancy configuration of claim 1, and is characterized by comprising the following steps:

step 1, monitoring the running state of a first channel by using a channel processing module A1, setting the running state of the channel to be abnormal when the running state of the channel is abnormal, sending channel self-checking information to a decision module, and simultaneously alarming to remind operation and maintenance personnel to check the channel abnormality; monitoring the running state of the second channel by using a channel processing module A2, setting the running state of the second channel to be abnormal when the running state of the second channel is abnormal, sending channel self-checking information to a decision module, and simultaneously alarming to remind operation and maintenance personnel to check the channel abnormality;

step 2, the decision module controls the channel data input of the logic processing modules B1 and B2 through the corresponding channel self-checking information sent by the channel processing modules A1 and A2;

step 3, the logic processing module B1 uses the corresponding channel data to perform logic operation, the formed normal state data is directly sent out through the corresponding channel processing module a1, and meanwhile, a control instruction is generated according to the established strategy table and sent to the decision module; the logic processing module B2 uses the corresponding channel data to perform logic operation, the formed normal state data is directly sent out through the corresponding channel processing module A2, and meanwhile, a control instruction is generated according to a set strategy table and sent to the decision module;

step 4, the decision module compares the control instructions output by the logic processing modules B1 and B2, and if the comparison results of the control instructions are the same, the control instructions are allowed to be output; if the comparison result of the control instruction is different, the output of the control instruction is locked, and abnormal records are made, so that the post analysis is facilitated.

3. The data processing method according to claim 2, wherein the step 1 monitors the operating status of the first channel by using the channel processing module a1, and sets the status of the first channel to be abnormal when the operating status of the first channel is abnormal, which is as follows:

monitoring five indexes of the first path by using a path processing module A1: frame error rate, frame interval and frame continuity, when the monitoring value of at least one of these five indexes exceeds the normal value by a certain range, the channel state is abnormal.

4. The data processing method according to claim 2, wherein the step 1 monitors the operation status of the second road channel by using the channel processing module a2, and sets the status of the second road channel to be abnormal when the operation status of the second road channel is abnormal, specifically as follows:

monitoring five indexes of the second path of the channel by using a channel processing module A2: frame error rate, frame interval and frame continuity, when the monitoring value of at least one of these five indexes exceeds the normal value by a certain range, the channel state is abnormal.

5. The data processing method according to claim 2, wherein the specific process of step 2 is as follows:

(1) when the first channel and the second channel are in normal states, the logic processing module B1 inputs data of the first channel, and the logic processing module B2 inputs data of the second channel;

(2) when the first channel is normal and the second channel is abnormal, the logic processing module B1 inputs the data of the first channel, and the logic processing module B2 inputs the data of the first channel;

(3) when the first channel is abnormal and the second channel is normal, the logic processing module B1 inputs the data of the second channel, and the logic processing module B2 inputs the data of the second channel;

(4) when the first and second road channel states are abnormal, the logic processing modules B1 and B2 lock the strategy logic related to the corresponding channel.

Technical Field

The invention relates to a stability control device for inter-station dual-channel redundancy configuration and a data processing method, and belongs to the field of power system automation.

Background

The stability control system is used as a second defense line for protecting the safe operation of the power system, and is generally a control system which is matched with each other through an inter-station channel by virtue of stability control devices in two or more transformer substations to complete a specific strategy function. With the rapid development of modern large power grids, the scale of extra-high voltage alternating current and direct current power transmission is continuously enlarged, a large amount of renewable energy is accessed into the power grids, the grid pattern and the power supply structure are changed, the characteristics of the power grids are also changed, the problem of safety and stability of the power grids is more and more prominent, and a stability control system plays an increasingly important role. Meanwhile, the influence caused by the misoperation of the stability control system is huge, so that the research on the inter-station double channels of the stability control system and a data processing method is very significant for improving the accuracy of the stability control action.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the stability control device and the data processing method for the inter-station dual-channel redundancy configuration are provided, the inter-station channels and logic processing of the stability control system are configured redundantly, the accuracy of control instruction output by the stability control device is guaranteed, and the operation safety of the stability control system is effectively improved.

The invention adopts the following technical scheme for solving the technical problems:

a stability control device for interstation dual-channel redundancy configuration comprises a channel processing module A1, a channel processing module A2, a logic processing module B1, a logic processing module B2 and a decision module; the channel processing module A1, the channel processing module A2, the logic processing module B1 and the logic processing module B2 are respectively linked with the decision module, the logic processing module B1 is connected with the first channel through the channel processing module A1, and the logic processing module B2 is connected with the second channel through the channel processing module A2;

the channel processing module a1 is responsible for receiving and sending the first channel data, monitoring the operating state of the channel, and sending the channel self-check information to the decision module;

the channel processing module A2 is used for receiving and sending the second channel of channel data, monitoring the operation state of the channel and sending the channel self-checking information to the decision module;

the logic processing module B1 is used for performing logic operation by using one channel of data, and the formed normal state data is directly sent out by the channel processing module A1; the decision module is also used for generating a control instruction according to the established strategy table and sending the control instruction to the decision module;

the logic processing module B2 is used for performing logic operation by using the other path of channel data, and the formed normal state data is directly sent out by the channel processing module A2; the decision module is also used for generating a control instruction according to the established strategy table and sending the control instruction to the decision module;

the decision module is used for controlling the channel data input of the logic processing modules B1 and B2 and verifying the consistency of the control instructions output by the logic processing modules B1 and B2.

A data processing method is realized on the basis of the stable control device of the interstation dual-channel redundancy configuration, and comprises the following steps:

step 1, monitoring the running state of a first channel by using a channel processing module A1, setting the running state of the channel to be abnormal when the running state of the channel is abnormal, sending channel self-checking information to a decision module, and simultaneously alarming to remind operation and maintenance personnel to check the channel abnormality; monitoring the running state of the second channel by using a channel processing module A2, setting the running state of the second channel to be abnormal when the running state of the second channel is abnormal, sending channel self-checking information to a decision module, and simultaneously alarming to remind operation and maintenance personnel to check the channel abnormality;

step 2, the decision module controls the channel data input of the logic processing modules B1 and B2 through the corresponding channel self-checking information sent by the channel processing modules A1 and A2;

step 3, the logic processing module B1 uses the corresponding channel data to perform logic operation, the formed normal state data is directly sent out through the corresponding channel processing module a1, and meanwhile, a control instruction is generated according to the established strategy table and sent to the decision module; the logic processing module B2 uses the corresponding channel data to perform logic operation, the formed normal state data is directly sent out through the corresponding channel processing module A2, and meanwhile, a control instruction is generated according to a set strategy table and sent to the decision module;

step 4, the decision module compares the control instructions output by the logic processing modules B1 and B2, and if the comparison results of the control instructions are the same, the control instructions are allowed to be output; if the comparison result of the control instruction is different, the output of the control instruction is locked, and abnormal records are made, so that the post analysis is facilitated.

As a preferable scheme of the method of the present invention, in step 1, the channel processing module a1 is used to monitor the operation state of the first channel, and when the operation state of the channel is abnormal, the state of the channel is set to be abnormal, specifically as follows:

monitoring five indexes of the first path by using a path processing module A1: frame error rate, frame interval and frame continuity, when the monitoring value of at least one of these five indexes exceeds the normal value by a certain range, the channel state is abnormal.

As a preferable scheme of the method of the present invention, in step 1, the channel processing module a2 is used to monitor the operation state of the second channel, and when the operation state of the channel is abnormal, the state of the channel is set to be abnormal, specifically as follows:

monitoring five indexes of the second path of the channel by using a channel processing module A2: frame error rate, frame interval and frame continuity, when the monitoring value of at least one of these five indexes exceeds the normal value by a certain range, the channel state is abnormal.

As a preferred scheme of the method of the invention, the specific process of the step 2 is as follows:

(1) when the first channel and the second channel are in normal states, the logic processing module B1 inputs data of the first channel, and the logic processing module B2 inputs data of the second channel;

(2) when the first channel is normal and the second channel is abnormal, the logic processing module B1 inputs the data of the first channel, and the logic processing module B2 inputs the data of the first channel;

(3) when the first channel is abnormal and the second channel is normal, the logic processing module B1 inputs the data of the second channel, and the logic processing module B2 inputs the data of the second channel;

(4) when the first and second road channel states are abnormal, the logic processing modules B1 and B2 lock the strategy logic related to the corresponding channel.

Compared with the prior art, the invention adopting the technical scheme has the following technical effects:

the invention carries out redundant configuration on channels and logic processing between the stable control systems, improves the accuracy of the stable control system for outputting control instructions and effectively prevents the stable control system from generating misoperation.

Drawings

FIG. 1 is a schematic diagram of a dual channel architecture between stable control stations.

FIG. 2 is a schematic structural diagram of a stability control device for inter-station dual-channel redundancy configuration according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1, the stable control system stations perform data and command interaction through two channels.

As shown in fig. 2, the stability control apparatus for inter-station dual-channel redundancy configuration provided by the present invention includes a channel processing module a1, a channel processing module a2, a logic processing module B1, a logic processing module B2, and a decision module, wherein:

the channel processing module A1 is responsible for receiving and sending the first channel data, monitoring the running state of the channel and sending the channel detection information to the decision module;

the channel processing module A2 is responsible for receiving and sending the second channel data, monitoring the running state of the channel and sending the channel detection information to the decision module;

the logic processing module B1 uses one channel data to perform logic operation, and the formed normal state data is directly sent out through the channel processing module A1; generating a control instruction according to the established strategy table and sending the control instruction to a decision module;

the logic processing module B2 uses the other channel data to perform logic operation, and the formed normal state data is directly sent out through the channel processing module A2; generating a control instruction according to the established strategy table and sending the control instruction to a decision module;

the decision module controls the consistency of the channel data input of the logic processing module and the output control instruction of the check logic processing module.

A data processing method of a stability control device based on inter-station dual-channel redundancy configuration specifically comprises the following steps:

(1) the channel processing modules A1 and A2 respectively monitor the frame error rate, the bit error rate, the frame interval and the frame continuity of the channels 1 and 2, when the monitored value exceeds a normal value within a certain range, the corresponding channel state is abnormal, channel self-checking information is sent to the decision module, and meanwhile, the device alarms to remind operation and maintenance personnel to carry out channel abnormal troubleshooting.

(2) The decision module controls the channel data input of the logic processing modules B1 and B2 through the corresponding channel self-check information sent by the channel processing modules a1 and a2, which is specifically as follows:

assume that the status exception flags for channels 1, 2 are TD _ Abn _ A1, TD _ Abn _ A2, respectively.

If TD _ Abn _ a1 or TD _ Abn _ a2 is satisfied, that is, if both channel 1 and channel 2 states are normal, the logical processing module B1 inputs channel 1 data, and the logical processing module B2 inputs channel 2 data.

If TD _ Abn _ a1 or (| TD _ Abn _ a2) ═ 0, that is, the channel 1 state is normal and the channel 2 state is abnormal, the logical processing module B1 inputs channel 1 data and the logical processing module B2 inputs channel 1 data.

If (| TD _ Abn _ a1) or TD _ Abn _ a2 is 0, that is, the channel 1 state is abnormal and the channel 2 state is normal, the logical processing module B1 inputs the channel 2 data, and the logical processing module B2 inputs the channel 2 data.

If TD _ Abn _ a1 and TD _ Abn _ a2 are satisfied, that is, if the states of both channels 1 and 2 are abnormal, both logic processing modules B1 and B2 lock policy logic associated with the channel.

(3) The logic processing modules B1 and B2 perform logic operations using the corresponding channel data, and the formed normal state data are directly sent out through the corresponding channel processing modules a1 and a 2. The logic processing module B1 generates a control command according to the predetermined policy table and sends the control command to the decision module, and the logic processing module B2 generates a control command according to the predetermined policy table and sends the control command to the decision module.

(4) The decision module compares the output control instructions of the logic processing modules A1 and A2, and if the comparison results of the control instructions are the same, the output of the control instructions is allowed; if the comparison result of the control instruction is different, the output of the control instruction is locked, and abnormal records are made, so that the post analysis is facilitated.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.