阅读说明：本技术 一种变电站通信系统 (Transformer substation communication system ) 是由 戚佳 江奕军 吴非斐 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种变电站通信系统,包括数据采集模块、主交换机、副交换机和智控终端,数据采集模块的输出端与主交换机的输入端之间、数据采集模块的输出端与副交换机的输入端之间各通过一条数据线Ⅰ连接,主交换机的输出端与智控终端的输入端之间、副交换机的输出端与智控终端的输入端之间各通过一条数据线Ⅱ连接；每条数据线Ⅰ包括一个数据输入接头和两个数据输出接头；主交换机和副交换机上均设置一个固定数据输入接口和一个活动数据输入接口,主交换机上的固定数据输入接口和活动数据输入接口分别与每条数据线Ⅰ的其中一个数据输出接头连接,副交换机上的固定数据输入接口和活动数据输入接口分别与每条数据线Ⅰ的另外一个数据输出接头连接。(The invention discloses a transformer substation communication system which comprises a data acquisition module, a main switch, an auxiliary switch and an intelligent control terminal, wherein the output end of the data acquisition module is connected with the input end of the main switch through a data line I, the output end of the data acquisition module is connected with the input end of the auxiliary switch through a data line II, and the output end of the main switch is connected with the input end of the intelligent control terminal through a data line II; each data line I comprises a data input joint and two data output joints; the main switch and the auxiliary switch are respectively provided with a fixed data input interface and a movable data input interface, the fixed data input interface and the movable data input interface on the main switch are respectively connected with one data output joint of each data line I, and the fixed data input interface and the movable data input interface on the auxiliary switch are respectively connected with the other data output joint of each data line I.)

1. A transformer substation communication system at least comprises a data acquisition module, a switch and an intelligent control terminal, and is characterized in that the switch comprises a main switch and an auxiliary switch, wherein the output end of the data acquisition module is connected with the input end of the main switch through a data line I, the output end of the data acquisition module is connected with the input end of the auxiliary switch through a data line II, and the output end of the main switch is connected with the input end of the intelligent control terminal through a data line II; each data line I at least comprises a data input joint and two data output joints, and the data acquisition module is provided with two data output interfaces which are respectively connected with the data input joints of the two data lines I; the main switch and the auxiliary switch are respectively provided with a fixed data input interface and a movable data input interface, the fixed data input interface and the movable data input interface on the main switch are respectively connected with one data output joint in each data line I, and the fixed data input interface and the movable data input interface on the auxiliary switch are respectively connected with the other data output joint in each data line I.

2. The substation communication system according to claim 1, wherein the data acquisition module at least comprises a transformer bank, an anti-aliasing filter, a zero-crossing comparator, a coupled frequency-doubling delay locked loop circuit, an A/D conversion circuit, a CPLD and a DSP controller, the transformer bank comprises a plurality of transformers, the input end of the anti-aliasing filter is electrically connected with the output end of each transformer, the input end of the zero-crossing comparator is electrically connected with the output end of the anti-aliasing filter, the output end of the zero-crossing comparator is electrically connected with the input end of the coupled frequency-doubling delay locked loop circuit and the input end of any I/O of the CPLD respectively, the output end of the coupled frequency-doubling delay locked loop circuit is electrically connected with the input end of the A/D conversion circuit, and the output end of the A/D conversion circuit is electrically connected with the input ends of other I/Os, the output end of the I/O of the CPLD is electrically connected with the input end of the DSP controller, and the DSP controller configures different data identifiers for data collected by different transformers by using information source coding.

3. The substation communication system according to claim 2, wherein the movable data input interface comprises a cylinder (1) and a data interface (2) installed in the cylinder through a slider (3) with a driving mechanism, the cylinder (1) is installed in the main switchboard and the auxiliary switchboard in an embedded manner, a sliding groove (4) for sliding of the slider is formed in the inner wall of the cylinder (1), and an internal thread is formed in the inner wall of the cylinder (1).

4. The substation communication system according to claim 3, wherein a connecting portion in butt joint with the cylinder (1) is arranged on a connecting section of each data output connector of each data line I and the data line I body, the connecting portion comprises a ring (5) fixedly connected with the connecting section and a connecting ring (6) sleeved outside the ring and slidably connected with the ring, the connecting ring (6) is convex, external threads matched with internal threads on the inner wall of the cylinder (1) are arranged on the outer wall of the ring (5), a sliding groove is arranged on the outer wall of the ring (5) along the circumferential direction, and a convex block which is integrally formed with the connecting ring and is matched with the sliding groove is arranged on the inner wall of the connecting ring (6).

5. The substation communication system according to claim 4, wherein one LoRa wireless communication module is configured in each of the data acquisition module, the main switch, the auxiliary switch and the intelligent control terminal.

6. The substation communication system according to claim 5, wherein in a normal operating state, the active data input interface is disconnected from the data output connector of the data line I, and the DSP controller is further configured to send a data transmission channel detection report at regular time to detect the operating conditions of the data line I, the data line II, the main switch and the auxiliary switch; a detection report identification module is configured in each of the main switch, the auxiliary switch and the intelligent control terminal and used for identifying a data transmission channel detection report, and identification results are sent to the intelligent control terminal through the LoRa wireless communication module; the intelligent control terminal realizes the driving of a data interface (2) in the active data input interface, awakens the LoRa wireless communication module and awakens the early warning module in the intelligent control terminal to realize the sending of the early warning short message according to the detection result of the working conditions of the data line I, the data line II, the main switch and the auxiliary switch.

7. The substation communication system according to claim 6, wherein a timing module is further configured in each of the master switch, the slave switch and the intelligent control terminal, and is used for calculating the time from sending to receiving of the data transmission channel detection report.

Technical Field

The invention relates to the technical field of power communication, in particular to a transformer substation communication system.

Background

With the development of remote control technology, conventional substations have begun to gradually move to unattended forms. The responsibility assumed by the intra-site communication system is more and more important, and the consequences caused by the intra-site communication interruption are more and more serious.

Therefore, how to avoid the consequences caused by communication interruption has become a problem which needs to be solved urgently at present.

Disclosure of Invention

In order to overcome the defects of the technology, the invention provides the transformer substation communication system, which reduces the influence caused by communication interruption as much as possible, thereby ensuring the reliable transmission of data.

The technical scheme adopted by the invention for overcoming the technical problems is as follows:

a transformer substation communication system at least comprises a data acquisition module, a switch and an intelligent control terminal, wherein the switch comprises a main switch and an auxiliary switch, the output end of the data acquisition module is connected with the input end of the main switch, the output end of the data acquisition module is connected with the input end of the auxiliary switch through a data line I, and the output end of the main switch is connected with the input end of the intelligent control terminal and the output end of the auxiliary switch is connected with the input end of the intelligent control terminal through a data line II; each data line I at least comprises a data input joint and two data output joints, and the data acquisition module is provided with two data output interfaces which are respectively connected with the data input joints of the two data lines I; the main switch and the auxiliary switch are respectively provided with a fixed data input interface and a movable data input interface, the fixed data input interface and the movable data input interface on the main switch are respectively connected with one data output joint in each data line I, and the fixed data input interface and the movable data input interface on the auxiliary switch are respectively connected with the other data output joint in each data line I.

Further, the data acquisition module at least comprises a mutual inductor group, an anti-aliasing filter, a zero-crossing comparator, a coupled frequency multiplication delay phase-locked loop circuit, an A/D conversion circuit, a CPLD and a DSP controller, wherein the mutual inductor group comprises a plurality of mutual inductors, the input end of the anti-aliasing filter is electrically connected with the output end of each mutual inductor, the input end of the zero-crossing comparator is electrically connected with the output end of the anti-aliasing filter, the output end of the zero-crossing comparator is electrically connected with the input end of the coupled frequency multiplication delay phase-locked loop circuit and the input end of any I/O of the CPLD respectively, the output end of the coupled frequency multiplication delay phase-locked loop circuit is electrically connected with the input end of the A/D conversion circuit, the output end of the A/D conversion circuit is electrically connected with the input ends of other I/Os of the CPLD, and the, and the DSP controller configures different data identifiers for the data acquired by different transformers by using the information source codes.

Further, the movable data input interface comprises a cylinder and a data interface arranged in the cylinder through a sliding block with a driving mechanism, the cylinder is embedded in the main switch and the auxiliary switch, a sliding groove for sliding the sliding block is formed in the inner wall of the cylinder, and an internal thread is formed in the inner wall of the cylinder.

Further, be provided with the connecting portion with the drum butt joint on the linkage segment of every data output joint of each data line I and I body of data line, this connecting portion include with linkage segment fixed connection's ring and cover establish the ring outside and with ring sliding connection's go-between, the go-between is convex and be equipped with on its outer wall with the drum inner wall on the external screw thread that interior thread matches, a spout has been arranged along the circumferencial direction on the outer wall of ring, be equipped with on the inner wall of go-between with go-between integrated into one piece and with the lug of spout adaptation.

Further, all dispose a loRa wireless communication module in data acquisition module, main switch, auxiliary switch and the intelligent control terminal.

Furthermore, in a normal working state, the active data input interface is disconnected from the data output connector of the data line I, and the DSP controller is also used for sending a data transmission channel detection report at regular time to realize detection of working conditions of the data line I, the data line II, the main switch and the auxiliary switch; a detection report identification module is configured in each of the main switch, the auxiliary switch and the intelligent control terminal and used for identifying a data transmission channel detection report, and identification results are sent to the intelligent control terminal through the LoRa wireless communication module; the intelligent control terminal realizes the driving of a data interface in the active data input interface, awakening the LoRa wireless communication module and awakening the early warning module in the intelligent control terminal to realize the sending of the early warning short message according to the detection result of the working conditions of the data line I, the data line II, the main switch and the auxiliary switch.

Furthermore, a timing module is configured in each of the master switch, the slave switch and the intelligent control terminal, and is used for calculating the time from sending to receiving of the data transmission channel detection report.

The invention has the beneficial effects that:

the invention provides a plurality of different channel heads for data transmission while realizing high-efficiency data transmission, thereby reducing the influence caused by communication interruption as much as possible.

The data acquisition module, the main switch, the auxiliary switch and the intelligent control terminal of the system have working condition detection functions, so that unsafe factors in the operation process of the system can be found in time, and reliable data transmission is further ensured.

Drawings

Fig. 1 is a schematic block diagram of a substation communication system according to an embodiment of the present invention.

Fig. 2 is a schematic diagram illustrating a connection manner among the data acquisition module, the master switch, the slave switch, and the intelligent control terminal according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an active data input interface according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a connection portion according to an embodiment of the present invention.

In the figure, 1, a cylinder, 2, a data interface, 3, a sliding block, 4, a sliding chute, 5, a circular ring, 6 and a connecting ring.

Detailed Description

In order to facilitate a better understanding of the invention for those skilled in the art, the invention will be described in further detail with reference to the accompanying drawings and specific examples, which are given by way of illustration only and do not limit the scope of the invention.

As shown in fig. 1, the substation communication system according to this embodiment at least includes a data acquisition module, a switch, and an intelligent control terminal. The data acquisition module at least comprises a mutual inductor group, an anti-aliasing filter, a zero-crossing comparator, a coupled frequency doubling delay phase-locked loop circuit, an A/D conversion circuit, a CPLD and a DSP controller, wherein the mutual inductor group comprises a plurality of mutual inductors, the input end of the anti-aliasing filter is electrically connected with the output end of each mutual inductor, the input end of the zero-crossing comparator is electrically connected with the output end of the anti-aliasing filter, the output end of the zero-crossing comparator is electrically connected with the input end of the coupled frequency doubling delay phase-locked loop circuit and the input end of any I/O of the CPLD respectively, the output end of the coupled frequency doubling delay phase-locked loop circuit is electrically connected with the input end of the A/D conversion circuit, the output end of the A/D conversion circuit is electrically connected with the input ends of other I/Os of the CPLD, the output and the switch of DSP controller are connected, after the DSP controller utilized the data configuration different data identification that the information source code was gathered for different mutual-inductors, transmitted to the switch, then the switch was with received data transmission to intelligence accuse terminal.

As the place where the improvement of this embodiment is the greatest, as shown in fig. 1 and 2, the switch includes a main switch and a sub-switch, the output end of the data acquisition module and the input end of the main switch and the output end of the data acquisition module and the input end of the sub-switch are respectively connected through a data line i, and the output end of the main switch and the input end of the intelligent control terminal and the output end of the sub-switch and the input end of the intelligent control terminal are respectively connected through a data line ii; each data line I at least comprises a data input joint and two data output joints, and the data acquisition module is provided with two data output interfaces which are respectively connected with the data input joints of the two data lines I; the main switch and the auxiliary switch are respectively provided with a fixed data input interface and a movable data input interface, the fixed data input interface and the movable data input interface on the main switch are respectively connected with one data output joint in each data line I, and the fixed data input interface and the movable data input interface on the auxiliary switch are respectively connected with the other data output joint in each data line I.

In this embodiment, as shown in fig. 3 and 4, the active data input interface includes a cylinder 1 and a data interface 2 installed in the cylinder through a slider 3 with a driving mechanism, the cylinder 1 is installed in the main switch and the sub switch in an embedded manner, a sliding groove 4 for sliding the slider is formed in the inner wall of the cylinder 1, and an internal thread is formed in the inner wall of the cylinder 1. Every data output of each data line I connects and is provided with the connecting portion with 1 butt joint of drum on the linkage segment of I body of data line, and this connecting portion include with linkage segment fixed connection's ring 5 and cover establish the ring outside and with ring sliding connection's go-between 6, go-between 6 is convex and be equipped with on its outer wall with 1 inner wall of drum internal thread matched with external screw thread, a spout has been arranged along the circumferencial direction on the outer wall of ring 5, be equipped with on the inner wall of go-between 6 with go-between integrated into one piece and with the lug of spout adaptation. When the data output of data line I connects and the installation of the movable data input interface on main exchange or the auxiliary exchange, go-between 6 and drum 1 pass through threaded connection together, when main exchange or auxiliary exchange broke down, the intelligence accuse terminal sends control command to the movable data input interface of auxiliary exchange or main exchange, make slider 3 drive data interface 2 and the realization butt joint of data output joint of data line I, namely, make data interface 2 and go-between 6 butt joint realize the electricity and be connected, thereby carry out the transmission of data through auxiliary exchange or main exchange, namely, when main exchange or auxiliary exchange broke down, main exchange and auxiliary exchange are each other the standby machine.

In this embodiment, as shown in fig. 1, all dispose a LoRa wireless communication module in data acquisition module, main switch, auxiliary switch and the intelligent control terminal, wherein, the LoRa wireless communication module configuration in the data acquisition module is in the mutual-inductor.

In this embodiment, in a normal operating state, that is, in a normal operating state of both the main switch and the auxiliary switch, at this time, data transmitted by the main switch and the auxiliary switch are different and are divided into work, the active data input interface is disconnected from the data output connector of the data line i, and the DSP controller is further configured to send a data transmission channel detection report at regular time to realize detection of working conditions of the data line i, the data line ii, the main switch and the auxiliary switch, and to discover an abnormal condition of data transmission in time; a detection report identification module is configured in each of the main switch, the auxiliary switch and the intelligent control terminal and used for identifying a data transmission channel detection report, and identification results are sent to the intelligent control terminal through the LoRa wireless communication module; the intelligent control terminal realizes the driving of a data interface 2 in the active data input interface, awakens the LoRa wireless communication module and awakens the early warning module in the intelligent control terminal to realize the sending of the early warning short message according to the detection result of the working conditions of the data line I, the data line II, the main switch and the auxiliary switch.

Preferably, a timing module is further configured in each of the master switch, the slave switch and the intelligent control terminal, and is used for calculating the time from sending to receiving of the data transmission channel detection report.

In this embodiment, the intelligent control terminal is further configured to complete post-processing of data and output a corresponding control command to a corresponding execution terminal, and the post-processing is not an inventive point in the substation communication system according to the present invention, and thus is not described herein again.

The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing description, which are within the scope of the invention.