Skid-mounted electric control integrated transformer substation and wiring device and wiring method thereof

Abstract

The invention relates to the technical field of power equipment, in particular to a skid-mounted electric control integrated transformer substation and a wiring device and wiring method thereof, and the wiring device comprises a transfer box, plugs and / or sockets which are arranged in at least two skid blocks of the transformer substation respectively and are detachably mounted on the mounting walls of the transfer box; one end of the cable connected with the transfer box is connected with a terminal of the electrical element in the skid, and the other end of the cable is inserted into the plug and / or the socket; and the plug is plugged on the socket of the same transfer box or plugged on the socket of another transfer box and is used for connecting cables with different skid distances. According to the invention, safe wiring at different distances between the skid blocks can be realized through the transfer box, and the convenience of wiring between the skid blocks is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a skid-mounted electric-control integrated substation and a wiring device and a wiring method thereof. Background Art

[0002] The skid-mounted integrated electric control substation has the advantages of strong completeness, short construction period, small footprint, safe and reliable operation, relatively low maintenance workload, and few service interfaces. Therefore, it is increasingly widely used in power supply and emergency power backup.

[0003] The integrated modular production method of the skid-mounted integrated electric control substation involves the connection of cables between the skids of the substation. In the past, the cable connection was done by on-site construction personnel after the substation was installed on site. The cables were laid between the corresponding skids and the two ends of the cables were directly connected to the terminals of the electrical components in the corresponding skids.

[0004] However, this cable connection method requires a lot of work to be completed at the installation site and is very limited by on-site construction conditions, which leads to low installation and construction efficiency of the skid and substation, and it is difficult to ensure the accuracy and integrity of the cable wiring, which in turn causes various hidden dangers of failure after the substation is put into operation, causing serious losses and consequences in some important production processes.

[0005] Therefore, at present, there are transfer boxes that pre-connect the terminals of electrical components in the substation. For example, the patent with application number 201921048370.7 discloses a cable connection device with pre-connected terminal wiring. This device reduces the workload at the installation site. However, the device is directly in contact with the outside air, and it is difficult to ensure the convenience of installation of centralized cables that carry high voltage electricity.

[0006] Therefore, how to better ensure the convenience of the transfer box used for wiring between the skids of the skid-mounted electric-control integrated substation is a technical problem that needs to be solved at present. Summary of the invention

[0007] To this end, the present invention provides a skid-mounted electric-control integrated substation and a wiring device and a wiring method thereof, which can realize safe wiring at different distances between skid blocks through a transfer box, thereby increasing the convenience of wiring between skid blocks.

[0008] To achieve the above object, the present invention provides a wiring device for a skid-mounted electric-control integrated substation, comprising:

[0009] A transfer box, at least two of which are respectively arranged in at least two of the skids of the skid-mounted electric-control integrated substation, each having a mounting wall, and a plug and / or socket detachably mounted on the mounting wall;

[0010] The cable connected to the transfer box has one end connected to the terminal of the electrical component in the skid, and the other end plugged into the plug and / or the socket;

[0011] The plug is plugged into the socket of the same adapter box, or plugged into the socket of another adapter box, so as to make corresponding cable connections when the distances between the skids are different;

[0012] The cables include a field bus for inter-skid communication and a power bus for power transmission.

[0013] Furthermore, the transfer box includes a first transfer box and a second transfer box, both of which are provided with the installation wall, the line inlet and the sealing structure;

[0014] The installation wall of the first adapter box is provided with at least two rows of first installation plates, and the first installation plates in the multiple rows are respectively provided with multiple fixing members for clamping the cables on the plugs, and the first installation plates in the multiple rows are respectively detachably installed with the installation wall, so that the plugs and the cables connected thereto are modularly arranged in the first adapter box;

[0015] The mounting wall of the second adapter box is provided with at least two rows of second mounting plates, and the multiple rows of second mounting plates are respectively provided with sockets of different specifications and are detachably mounted on the mounting wall, so that the sockets are modularly arranged in the second adapter box.

[0016] Furthermore, the adapter box is an integrated adapter box provided with the plug and the socket;

[0017] The mounting wall of the integrated adapter box is provided with at least two rows of third mounting plates, and the multiple rows of third mounting plates are respectively provided with sockets of different specifications and multiple clamping parts for cables on the plugs, and are respectively detachably mounted on the mounting wall, so that the sockets, clamping parts and plugs are modularly arranged in the integrated adapter box.

[0018] Furthermore, a box door panel is provided on one side of the transfer box;

[0019] A magnetic piece is disposed on the side wall of the box door panel, and a magnetic sensor is disposed on the inner wall of the transfer box corresponding to the magnetic piece.

[0020] Furthermore, the interface of the socket is provided with a conduction switch and a built-in radio frequency identification tag, and the outlet cable is provided with a current oscilloscope;

[0021] The adapter box is provided with a sub-controller which is communicatively connected with the conduction switch, the radio frequency identification tag, the current oscilloscope and the magnetic sensor.

[0022] The present invention further proposes a skid-mounted integrated electric control substation, wherein the skid-mounted integrated electric control substation is provided with the wiring device of the skid-mounted integrated electric control substation, and the skid-mounted integrated electric control substation comprises:

[0023] A substation cloud platform communicates with the transfer box and the skid to form a substation Internet of Things system;

[0024] The transfer box includes a first transfer box and a second transfer box, and the skid includes at least a first skid and a second skid;

[0025] One end of the outgoing cable is connected to the terminal of the electrical component in the first skid and is clamped to the fixing member of the first transfer box, and the other end is plugged into the plug;

[0026] The plug is plugged into the socket of the second transfer box of the second skid;

[0027] The socket of the second transfer box is plugged into the incoming cable, and the incoming cable is connected to the terminal of the electrical component in the second skid.

[0028] In particular, when the first skid and the second skid are close to each other and the first adapter box and the second adapter box are close to each other, by plugging the plug on the fixing part of the first adapter box into the socket of the second adapter box, fewer cables are required to connect the skids, thereby simplifying the wiring structure of the skids and shorter cables can be stored in the adapter box, further facilitating the wiring operations of the construction personnel.

[0029] Further, the adapter box further comprises an integrated adapter box provided with the plug and the socket, and the skid further comprises a third skid and a fourth skid respectively provided with the integrated adapter box;

[0030] The two incoming cables of the two integrated transfer boxes are respectively connected to the terminals of the electrical components in the third skid and the fourth skid, and are respectively connected to the sockets of the two integrated transfer boxes;

[0031] One end of the outgoing cable is connected to the plug of the integrated transfer box of the third skid, and the other end is connected to the plug of the integrated transfer box of the fourth skid, and the plug is correspondingly plugged into the socket.

[0032] In particular, when the third skid and the fourth skid are far apart and the two integrated transfer boxes are far apart, by having one end of the outgoing cable be a plug on the card connector of one integrated transfer box and the other end be a plug on the card connector of another integrated transfer box, it is possible to avoid storing the longer connecting cables between the skids in the transfer boxes, thereby reducing the volume occupied by the transfer boxes.

[0033] The present invention also provides a wiring method for a skid-mounted electric-control integrated substation, comprising:

[0034] One end of the outlet cable is connected to the terminal of the electrical component in the first skid, and the other end is plugged into the plug;

[0035] The plug is plugged into the socket of the second transfer box of the second skid;

[0036] The socket of the second transfer box is plugged into the incoming cable, and the incoming cable is connected to the terminal of the electrical component in the second skid.

[0037] Furthermore, the skid also includes a third skid and a fourth skid, each of which is provided with an integrated transfer box;

[0038] The two incoming cables of the two integrated transfer boxes are respectively connected to the terminals of the electrical components in the third skid and the fourth skid, and are respectively connected to the sockets of the two integrated transfer boxes;

[0039] One end of the outgoing cable is connected to the plug of the integrated transfer box of the third skid, and the other end is connected to the plug of the integrated transfer box of the fourth skid, and the plug is correspondingly plugged into the socket.

[0040] Further, a switchable box door panel is provided on one side of the transfer box, a magnetic member is provided on the side wall of the box door panel, a magnetic sensor is provided on the inner wall of the transfer box corresponding to the magnetic member, a conduction switch is provided on the interface of the socket, a current oscilloscope is provided on the outlet cable, and a sub-controller is provided on the transfer box in communication connection with the magnetic sensor, the conduction switch and the current oscilloscope;

[0041] The wiring method further comprises:

[0042] The sub-controller uses the current database to train a convolutional neural network to generate a current waveform extraction model, uses the current waveform extraction model to extract waveform features of the current signal collected by the current oscilloscope, compares the waveform features with the fault waveform, and determines whether the wiring of the outgoing cable is normal based on the comparison result.

[0043] Further, performing a wavelet transform on the current signal to obtain a wavelet coefficient, wherein a scale factor of the wavelet transform is determined according to an average amplitude of the current signal;

[0044] Calculating the modulus maximum of the wavelet coefficients, inputting the modulus maximum into a convolutional neural network, and determining a characteristic waveform of the current signal;

[0045] The characteristic waveform is compared with the fault waveform, and whether the wiring of the outgoing cable is normal is determined according to the comparison result.

[0046] In particular, a stable connection between the plug and the socket is ensured, further improving the safety of the transfer box.

[0047] Furthermore, the sub-controller is communicatively connected to the main controller of the skid-mounted electric-control integrated substation, and the plug has a built-in radio frequency identification tag communicatively connected to the sub-controller;

[0048] The wiring method further comprises:

[0049] The main controller records the correspondence information between the electrical components, the numbers of the sockets and the numbers of the plugs;

[0050] The sub-controller reads the RFID tag to identify the number of the plug and sends it to the main controller;

[0051] The main controller determines whether the serial number and the label correspond to each other according to the corresponding relationship information. If they do not correspond, an alarm message is generated, and the conduction switch is controlled to be turned off through the sub-controller.

[0052] Furthermore, the main controller is equipped with a substation cloud platform, and the substation cloud platform is communicatively connected with the sub-controller;

[0053] The substation cloud platform receives and stores the corresponding relationship information, wherein the corresponding relationship information includes the wiring relationship between the electrical components in a skid and the socket / plug in the skid, and the planned wiring relationship between the electrical components of the two skids;

[0054] The main controller determines the number and the corresponding label according to the planned wiring relationship and the wiring relationship in the skid.

[0055] Furthermore, the plug is provided with a number display, and the socket or the mounting wall close to the plug is provided with a number display;

[0056] The wiring method further comprises:

[0057] The main controller controls the corresponding label display and serial number display to display the same number.

[0058] Furthermore, a temperature sensor and a fan heater are provided on the inner wall of the transfer box and penetrate both the inner and outer sides, and both of them are communicatively connected with the sub-controller;

[0059] The wiring method further comprises:

[0060] When the temperature sensor detects that the temperature inside the transfer box with the door panel closed is at the condensing temperature, the temperature sensor sends a heating signal to the sub-controller, and the sub-controller controls the fan heater to operate to prevent condensed water from generating a fault arc.

[0061] In particular, the possibility of arc generation is further reduced by using a magnetic sensor, a conduction switch, a current oscilloscope and a radio frequency identification tag, further ensuring that the plug can be connected to the corresponding socket, and further improving the safety of the adapter box.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. The adapter box can realize safe wiring at different distances between skids, which increases the convenience of wiring between skids.

[0064] 2. When the first skid and the second skid are close to each other, and the first transfer box and the second transfer box are close to each other, by plugging the plug on the fixing part of the first transfer box into the socket of the second transfer box, fewer cables are required for connecting the skids, which simplifies the wiring structure of the skids, and shorter cables can be stored in the transfer box, further facilitating the wiring operation of the construction personnel.

[0065] 3. When the first skid and the second skid are far apart and the first transfer box and the second transfer box are far apart, one end of the outgoing cable is a plug on the card connector of the integrated transfer box of the first transfer box, and the other end is a plug on the card connector of the integrated transfer box of the second transfer box, so that the longer connecting cables between the skids do not need to be stored in the transfer box, thereby reducing the volume occupied by the transfer box.

[0066] 4. The possibility of arcing is further reduced by magnetic sensors, conduction switches, current oscilloscopes and radio frequency identification tags, which further ensures that the plug can be connected to the corresponding socket, further improving the safety of the adapter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 is a schematic structural diagram of a second transfer box connecting cable according to an embodiment of the present invention;

[0068] Figure 2 is a schematic structural diagram of a first transfer box connecting cable according to an embodiment of the present invention;

[0069] Figure 3 is a schematic diagram of the back structure of the adapter box according to an embodiment of the present invention;

[0070] Figure 4 is a structural schematic diagram of the connection between a first transfer box and a second transfer box according to an embodiment of the present invention;

[0071] Figure 5 is a schematic structural diagram of a first skid and a second skid that are not connected according to an embodiment of the present invention;

[0072] Figure 6 It is a structural schematic diagram of the connection between the first skid and the second skid according to an embodiment of the present invention;

[0073] Figure 7 is a structural schematic diagram of an integrated adapter box connected to unconnected cables according to another embodiment of the present invention;

[0074] Figure 8 is a schematic structural diagram of a plug and a socket of an integrated adapter box according to another embodiment of the present invention;

[0075] Fig. 9 is a structural schematic diagram of two integrated transfer boxes connected in another embodiment of the present invention;

[0076] Fig.10 is a structural schematic diagram of a third skid and a fourth skid connected to each other according to another embodiment of the present invention;

[0077] Fig.11 It is a structural schematic diagram of another connection between a third skid and a fourth skid in another embodiment of the present invention.

[0078] Description of the main components in the figure: 1. Adapter box; 11. Enclosed chamber; 12. Mounting wall; 121. First mounting plate; 1211. Fixing piece; 122. Second mounting plate; 123. Third mounting plate; 1231. Snap-on piece; 124. Fixed beam; 125. Socket; 1251. Numbering display; 126. Plug; 1261. Labeling display; 13. Box door panel; 131. Magnetic piece; 132. Magnetic sensor; 133. Fan heater; 14. Back panel; 141. Fixing screw; 15. Shell; 151. First adapter box; 152. Second adapter box; 153. Integrated adapter box; 31. Outgoing cable; 311. Current oscilloscope; 32. Incoming cable; 4. Pry block; 41. First pry block; 42. Second pry block; 43. Third pry block; 44. Fourth pry block. DETAILED DESCRIPTION

[0079] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0080] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0081] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0082] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] like Figures 1 to 11 As shown, the present invention provides a skid-mounted electric-control integrated substation and a wiring device and a wiring method thereof. Through a transfer box, safe wiring at different distances between skid blocks can be achieved, thereby increasing the convenience of wiring between skid blocks.

[0084] Embodiment 1:

[0085] like Figures 1 to 11 As shown, this embodiment proposes a skid-mounted integrated electric control substation and its wiring device and wiring method. The wiring device of the skid-mounted integrated electric control substation includes: a transfer box 1, at least two of which are respectively arranged in at least two of the skid blocks 4 of the skid-mounted integrated electric control substation, each having a mounting wall 12, and a plug 126 and / or a socket 125 detachably mounted on the mounting wall 12; a closed chamber 11, which is formed by enclosing the mounting wall 12 and the side wall of the transfer box 1, and has a safety gas inside to prevent the cable arc hazard The skid 4; the cable connected to the transfer box 1 has one end connected to the terminal of the electrical component in the skid 4, and the other end passes through the closed chamber 11 and is plugged into the plug 126 and / or the socket 125; the plug 126 is plugged into the socket 125 of the same transfer box 1, or plugged into the socket 125 of another transfer box 1, to connect cables with different skid spacings; the cable includes a field bus for communication between the skids 4, and a power bus for power transmission, so as to safely wire the skids 4 through the transfer box 1. The cable includes an outgoing cable 31 and an incoming cable 32.

[0086] It should be noted that the socket 125 and the plug 126 are industrial connectors, or the socket 125 and the plug 126 used in aviation, so as to enhance their safety.

[0087] It should be noted that the safety gas is preferably sulfur hexafluoride, which has been introduced into the closed chamber 11 before the adapter box 1 leaves the factory, and does not require on-site operation by construction personnel. The safety gas may also be carbon dioxide or an inert gas.

[0088] It is understandable that since the connection box has multiple plugs 126 or sockets 125, and they need to be plugged in and out multiple times according to different connection requirements of the skid 4, it is inevitable that the insulating rubber rings of the plugs 126 or sockets 125 will be worn during long-term use, resulting in poor contact and causing arc discharge. Arcs of shorter duration and smaller discharge amount do not require excessive processing because the connection box is in a closed state. This embodiment only ensures that when an arc causes an electrical fire, it will not cause a fire inside the substation.

[0089] Specifically, a conduction switch is provided on the mounting wall 12 of the sealed chamber 11, and the conduction switch is opened under the control of the sub-controller, so that when an excessive electric arc is generated at the interface of the socket 125, it can contact with the safety gas without catching fire.

[0090] Further, the transfer box 1 includes a first transfer box 151 and a second transfer box 152, both of which are provided with the mounting wall 12, the enclosed chamber 11, the line inlet and the sealing structure; the mounting wall 12 of the first transfer box 151 is provided with multiple rows of mounting plates, and the multiple rows of mounting plates are respectively provided with sockets 125 of different specifications, and are respectively detachably installed with the mounting wall 12, so that the sockets 125 are modularly arranged in the first transfer box 151; the mounting wall 12 of the first transfer box 151 is provided with at least two rows of first mounting plates 121, and the multiple rows of first mounting plates 121 are respectively provided with card-connecting plugs 126 A plurality of fixings 1211 for plugged cables, a plurality of rows of the first mounting plates 121 are detachably mounted on the mounting wall 12, respectively, so that the plug 126 and the cables connected thereto are modularly arranged in the first transfer box 151; the mounting wall 12 of the second transfer box 152 is provided with at least two rows of second mounting plates 122, a plurality of rows of second mounting plates 122 are respectively provided with sockets 125 of different specifications, and are detachably mounted on the mounting wall 12, respectively, so that the sockets 125 are modularly arranged in the second transfer box 152; the plug 126 and the corresponding socket 125 to which it is plugged have the same specifications.

[0091] Specifically, a plurality of fixing beams 124 are provided on the surface of the mounting wall 12, and the first mounting plate 121 and the second mounting plate 122 are respectively clamped with the fixing beams 124 through the upper and lower side edges, thereby realizing the detachable installation of the first mounting plate 121 and the second mounting plate 122 provided with sockets 125 or fixing parts 1211 of different specifications on the mounting wall 12.

[0092] Furthermore, the substation at least includes a first skid 41 and a second skid 42, and the first transfer box 151 and the second transfer box 152 are respectively provided; one end of the outgoing cable 31 is connected to the terminal of the electrical component in the first substation, a part of it is engaged with the fixing part 1211 of the first transfer box 151, and the other end is plugged into the plug 126; the plug 126 is plugged into the socket 125 of the second transfer box 152 of the second substation; the socket 125 of the second transfer box 152 is plugged into the incoming cable 32, and the incoming cable 32 is connected to the terminal of the electrical component in the second substation.

[0093] In particular, when the first substation and the second substation are close to each other and the first transfer box 151 and the second transfer box 152 are close to each other, by plugging the plug 126 on the fixing part 1211 of the first transfer box 151 into the socket 125 of the second transfer box 152, fewer cables are required for connecting the substations, thereby simplifying the wiring structure of the substation, and shorter cables can be stored in the transfer box 1, further facilitating the wiring operations of the construction personnel.

[0094] Furthermore, a fan heater 133 is provided on the mounting wall 12 to prevent condensation from being generated in the transfer box 1; a switchable door panel 13 is provided on one side of the transfer box 1, and a removable mounting is provided on the other side corresponding to the door panel 13 to the side wall of the substation; the socket 125 is installed on the side surface of the mounting wall 12 close to the door panel; a magnetic member 131 is provided on the side wall of the door panel 13, and a magnetic sensor 132 is provided on the inner wall of the transfer box 1 corresponding to the magnetic member 131; a conduction switch is provided at the interface of the socket 125; a current oscilloscope 311 for collecting the current signal of the outgoing cable 31 is provided; the transfer box 1 is provided with a sub-controller which is communicatively connected with the magnetic sensor 132 and the plug sensor; when the door panel 13 is closed in place, the magnetic sensor 132 sends a confirmation conduction signal to the sub-controller, and the sub-controller determines that the wiring is normal, the sub-controller controls the conduction switch to be turned on, and the socket 125 and the plug 126 are turned on.

[0095] Furthermore, the sub-controller matches the current signal with a current database, and determines whether the wiring is normal according to the matching result.

[0096] In a specific implementation, the current signal is subjected to a wavelet transform to obtain wavelet coefficients, wherein a scale factor of the wavelet transform is determined according to an average amplitude of the current signal;

[0097] Calculating the modulus maximum of the wavelet coefficients;

[0098] Inputting the modulus maximum into a convolutional neural network to determine a characteristic waveform of the current signal;

[0099] The characteristic waveform is compared with the fault waveform, and whether the connection of the outgoing cable (31) is normal is determined based on the comparison result.

[0100] The current signal is subjected to wavelet transformation to obtain wavelet coefficients, specifically:

[0101]

[0102] Calculate the modulus maximum of the wavelet coefficients, specifically:

[0103]

[0104] That is, traverse the wavelet coefficients at each scale and find the local maximum value, which is the modulus maximum of the wavelet coefficients. The modulus maximum of the wavelet coefficients accurately reflects the local characteristics of the signal.

[0105] In the above formulas, is the mother wavelet function, preferably the Haar wavelet, I(t) is the current signal, a is the scale factor, if the average amplitude of the current signal within 2 seconds is less than 450A, the scale factor a is 0.8, if the average amplitude of the current signal within 2 seconds exceeds 450A, the scale factor a is 1.1, b is the displacement factor, preferably 0.5.

[0106] Therefore, the precise waveform characteristics of the current can be extracted through the modulus maximum of the wavelet coefficients and the convolutional neural network, and an early warning can be issued in advance when a fault occurs, guiding the operation and maintenance personnel to perform timely maintenance, avoiding further expansion of the fault, and ensuring the safe and stable operation of the substation system.

[0107] In another specific implementation, the sub-controller matches the waveform of the current signal collected by the current oscilloscope 311 with the fault waveform of the current in the current database, and then determines whether the wiring is normal according to the matching result.

[0108] Specifically, the current database is used to train a convolutional neural network model (CNN) and adjust its training parameters. When the convolutional neural network model is evaluated to be basically converged and its extraction of current waveform features of the current database is sufficiently accurate, the convolutional neural network model is used to generate a current waveform extraction model. The current waveform extraction model is used to process the current signal to extract the accurate waveform of the current signal, and the difference value between the waveform and the fault waveform is calculated. The difference value is the cosine similarity between the waveform and the fault waveform. Specifically, the waveform and the fault waveform are input into the image encoder of the CLIP model to obtain waveform embedding and fault waveform embedding respectively. The cosine similarity between the waveform embedding and the fault waveform embedding is calculated. The cosine similarity is the multiplication of the waveform embedding vector by the fault waveform embedding vector, divided by its vector modulus. If the cosine similarities all meet the threshold, it is judged that the difference between the waveform and the fault waveform is small and the wiring is judged to be abnormal. There is a corresponding relationship between the threshold and the distance between the transfer box 1, that is, the distance is multiplied by the cable performance coefficient to obtain the threshold. The cable performance coefficient of copper cable is set to 0.015 to 0.04. Copper cable has good electrical conductivity and mechanical properties. The cable performance coefficient of aluminum cable is set to 0.02 to 0.05. Although the electrical conductivity of aluminum cable is slightly inferior to that of copper cable, its price is relatively low. Therefore, it is widely used in some occasions with high cost requirements. The cable performance coefficient of optical cable is set to 0.2 to 0.3. The transmission performance of optical cable is better. The cable performance coefficient is also proportional to its cable diameter. Therefore, the better the cable material and the wider the diameter, the larger the threshold, and the looser the judgment on whether the wiring is normal.

[0109] In particular, a stable connection between the plug 126 and the socket 125 is ensured, further improving the safety of the adapter box 1 .

[0110] Furthermore, the main controller is equipped with a substation cloud platform, and the substation cloud platform is communicatively connected with the sub-controller to form a substation Internet of Things system; the substation cloud platform receives and stores the corresponding relationship information, and the corresponding relationship information includes the wiring relationship within the pry of the electrical components in a skid and the socket / plug, and the planned wiring relationship between the electrical components of two skids; the main controller determines the number and its corresponding label according to the planned wiring relationship and the wiring relationship within the skid.

[0111] Furthermore, the plug is provided with a label display, and the socket or the mounting wall 12 close to the plug is provided with a number display 1251; the wiring method further comprises: the main controller controls the corresponding label display 1261 and the number display 1251 to display the same number. Figure 8 "H3A" and Fig. 9“H16B” in the figure is the label / number displayed on the label display 1261 / number display 1251.

[0112] Furthermore, the inner wall of the box door panel 13 is provided with a temperature sensor and a fan heater 133 penetrating both sides, both of which are communicatively connected with the sub-controller; when the temperature sensor detects that the temperature inside the transfer box 1 with the box door panel 13 closed is at the condensation temperature, the temperature sensor sends a heating signal to the sub-controller, and the sub-controller controls the operation of the fan heater 133 to prevent condensed water from generating a fault arc.

[0113] In particular, the possibility of arc generation is further reduced, and the safety of the switching box 1 is further improved.

[0114] Furthermore, the sub-controller is communicatively connected to the main controller of the substation; the main controller records the correspondence between the electrical components and the numbers of the sockets 125; the outlet cable 31 is plugged into the plug 126, and the plug 126 has a built-in radio frequency identification tag (RFID), and the sub-controller can read the radio frequency identification tag to identify the number of the plug 126 and send it to the main controller; when the main controller determines that the number and the label do not correspond, an alarm message is generated.

[0115] Furthermore, the plug 126 is provided with a label display 1261, and the socket 125 or the mounting wall 12 close to the plug is provided with a number display 1251; the main controller controls the corresponding label display 1261 and number display 1251 to display the same number.

[0116] Specifically, the label display 1261 and the number display 1251 can be low-cost digital tubes.

[0117] In particular, it further facilitates the wiring of construction workers and further ensures that the plug 126 can be connected to the corresponding socket 125.

[0118] Furthermore, a conduction switch is provided on the mounting wall 12 of the enclosed chamber 11. When the sub-controller determines that the peak value and duration of the current signal far exceed the current safety upper limit, the temperature in the adapter box 1 exceeds the temperature safety upper limit, or the plug 126 and the socket 125 are misconnected, the conduction switch is controlled to open, so that when an excessively large electric arc is generated at the interface of the socket 125, it can contact the safety gas without catching fire.

[0119] In this embodiment, the skid-mounted integrated electric-control substation is provided with the above-mentioned wiring device of the skid-mounted integrated electric-control substation, and the sub-controller of the transfer box 1 is communicatively connected with the main controller of the skid-mounted integrated electric-control substation.

[0120] In this embodiment, the sub-controller (on-site) and the substation cloud platform (centralized control) exchange power grid operation data through the dispatching data network, and also exchange operation and maintenance management data through the integrated data network to build a panoramic data platform: to realize data collection and interaction, data modeling, data storage and data management functions; monitoring platform: to realize cable operation monitoring, transfer box status monitoring, operation and control, online five-defense functions; operation and maintenance management: to realize substation operation management, transfer box management, accident handling and analysis, technical management and other functions; exhibition center: through visualization technology, it provides navigation, analysis, operation and decision support functions for plant operation management, and provides a customizable human-computer interface.

[0121] Therefore, in this embodiment, the incoming cable 32 connected to the electrical components in the substation is passed through the closed chamber 11 through which the safety gas is passed, so that even if the incoming cable 32 through which the high voltage electricity is passed fails and an arc is generated, the safety gas can prevent the arc from causing an electrical fire, thereby improving the reliability and safety of the transfer box 1. When the first substation and the second substation are close, and the first transfer box 151 and the second transfer box 152 are close, by plugging the plug 126 on the fixing part 1211 of the first transfer box 151 into the socket 125 of the second transfer box 152, the number of cables required for the connection between the substations is reduced, the wiring structure of the substation is simplified, and the shorter cables can be stored in the transfer box 1, which further facilitates the wiring operation of the construction personnel. The possibility of arc generation is further reduced by the magnetic sensor 132, the conduction switch, the current oscilloscope 311, the temperature sensor and the radio frequency identification tag, and the safety of the transfer box 1 is further improved.

[0122] Embodiment 2:

[0123] like Figures 1 to 11 As shown, this embodiment provides a skid-mounted integrated electric control substation and its wiring device and wiring method based on the first embodiment. The adapter box 1 of the wiring device described in this embodiment is different from that in the first embodiment only in that the adapter box 1 is an integrated adapter box 153 provided with both the plug 126 and the socket 125.

[0124] Furthermore, the mounting wall 12 of the integrated adapter box 153 is provided with at least two rows of third mounting plates 123, and the multiple rows of third mounting plates 123 are respectively provided with multiple snap-in parts 1231 of cables connected to sockets 125 and snap-in plugs 126 of different specifications, and are respectively detachably mounted on the mounting wall 12, so that the sockets 125, snap-in parts 1231 and plugs 126 are modularly arranged in the integrated adapter box 153; the plugs 126 and the corresponding sockets 125 have the same specifications.

[0125] Specifically, a plurality of fixed beams 124 are provided on the surface of the mounting wall 12, and the third mounting plate 123 is respectively connected to the two fixed beams 124 through the upper and lower side edges, thereby realizing the detachable installation of the third mounting plate 123 and the mounting wall 12 provided with sockets 125 or clamping parts 1231 of different specifications.

[0126] Furthermore, the skid 4 includes at least a third skid 43 and a fourth skid 44, each of which is provided with an integrated transfer box 153; the two incoming cables 32 of the two integrated transfer boxes 153 are respectively connected to the terminals of the electrical components in the third skid 43 and the fourth skid 44, and are connected to the sockets 125 of the two integrated transfer boxes 153; one end of the outgoing cable 31 is connected to the plug 126 of the integrated transfer box 153 of the third skid 43, and the other end is connected to the plug 126 of the integrated transfer box 153 of the fourth skid 44, and the plug 126 is correspondingly plugged into the socket 125.

[0127] In particular, when the third skid 43 and the fourth skid 44 are far apart and the two integrated transfer boxes 153 are far apart, by having one end of the outgoing cable 31 be a plug 126 on a snap-in 1231 of an integrated transfer box 153 and the other end be a plug 126 on a snap-in 1231 of another integrated transfer box 153, it is possible to eliminate the need for the longer connecting cables between the skids 4 to be housed in the transfer box 1, thereby reducing the volume occupied by the transfer box 1.

[0128] It can be understood that the integrated adapter box 153 described in this embodiment can be used when the distance between the skids 4 is relatively far or the distance between the adapter boxes 1 is relatively far.

[0129] Embodiment three:

[0130] like Figures 1 to 11 As shown, this embodiment provides a skid-mounted integrated electric control substation and its wiring device and wiring method based on the first and second embodiments. At least four skids 4 described in this embodiment are provided, including the first skid 41 and the second skid 42 described in the first embodiment and the third skid 43 and the fourth skid 44 described in the second embodiment, wherein the first skid 41 and the third skid 43 are connected via a transfer box 1.

[0131] Specifically, the plugs 126 of some outgoing cables 31 extending out of the first transfer box 151 of the first skid 41 are not plugged into the sockets 125 of the second transfer box 152 of the second skid 42, but are plugged into the plugs 126 of the transfer box 1 of the third skid 43 or the fourth skid 44. Similarly, when there are more than four skids 4, the outgoing cables 31 of one or more skids 4 are simultaneously plugged into the sockets 125 of the transfer boxes 1 of more than two skids 4.

[0132] Therefore, this embodiment can flexibly and conveniently realize the cable connection and wiring of four or more skids 4 through the short wiring in the first embodiment and the long wiring in the second embodiment.

[0133] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0134] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wiring device for a skid-mounted electric control integrated substation, characterized in that: include: A transfer box (1), at least two of the transfer boxes (1) are respectively arranged in at least two skids (4) of a skid-mounted electric control integrated substation, each having a mounting wall (12), and a plug (126) and / or a socket (125) detachably mounted on the mounting wall (12); The cable connected to the transfer box (1) has one end connected to the terminal of the electrical component in the skid (4) and the other end plugged into the plug (126) and / or the socket (125); The plug (126) is plugged into the socket (125) of the same adapter box (1), or plugged into the socket (125) of another adapter box (1), so as to perform corresponding cable connection when the distances between the skids are different; The cable comprises a field bus for communication between the skids (4) and a power bus for power transmission.

2. The wiring device of the skid-mounted integrated electric control substation according to claim 1, characterized in that: The transfer box (1) comprises a first transfer box (151) and a second transfer box (152), both of which are provided with the installation wall (12), a wire inlet and a sealing structure; The mounting wall (12) of the first adapter box (151) is provided with at least two rows of first mounting plates (121), and the multiple rows of first mounting plates (121) are respectively provided with multiple fixing members (1211) for clamping the cables on the plug (126), and the multiple rows of first mounting plates (121) are respectively detachably mounted on the mounting wall (12), so that the plug (126) and the cables connected thereto are modularly arranged in the first adapter box (151); The mounting wall (12) of the second adapter box (152) is provided with at least two rows of second mounting plates (122), and the multiple rows of second mounting plates (122) are respectively provided with sockets (125) of different specifications, and are respectively detachably mounted on the mounting wall (12), so that the sockets (125) are modularly arranged in the second adapter box (152).

3. The wiring device of the skid-mounted electric control integrated substation according to claim 1, characterized in that: The adapter box (1) is an integrated adapter box (153) provided with the plug (126) and the socket (125); The mounting wall (12) of the integrated adapter box (153) is provided with at least two rows of third mounting plates (123), and the multiple rows of third mounting plates (123) are respectively provided with multiple clamping parts (1231) for cables on sockets (125) and plugs (126) of different specifications, and are respectively detachably mounted on the mounting wall (12), so that the sockets (125), clamping parts (1231) and plugs (126) are modularly arranged in the integrated adapter box (153).

4. The wiring device of the skid-mounted electric-control integrated substation according to any one of claims 1 to 3, characterized in that: A fan heater (133) is arranged on the mounting wall (12) to prevent condensation water from being generated in the adapter box (1); A box door plate (13) is provided on one side of the transfer box (1), and a sealing structure is provided at the place where the cable passes through the box door plate (13); A magnetic part (131) is provided on the side wall of the box door plate (13), and a magnetic sensor (132) is provided on the inner wall of the transfer box (1) corresponding to the magnetic part (131).

5. The wiring device of the skid-mounted electric-control integrated substation according to claim 4, characterized in that: The interface of the socket (125) is provided with a conduction switch and a built-in radio frequency identification tag, and the plug (126) is provided with a current oscilloscope (311); The adapter box (1) is provided with a sub-controller which is communicatively connected to the conduction switch, the radio frequency identification tag, the current oscilloscope (311) and the magnetic sensor (132).

6. A skid-mounted electric control integrated substation, characterized in that: The skid-mounted integrated electric control substation is provided with a wiring device of the skid-mounted integrated electric control substation according to any one of claims 1 to 5, and the skid-mounted integrated electric control substation comprises: A substation cloud platform communicates with the transfer box (1) and the skid (4) to form a substation Internet of Things system; The transfer box (1) comprises a first transfer box (151) and a second transfer box (152); the skid (4) comprises at least a first skid (41) and a second skid (42); and the cable comprises an outgoing cable (31) and an incoming cable (32); One end of the outlet cable (31) is connected to the terminal of the electrical component in the first skid (41) and is clamped to the fixing piece (1211) of the first transfer box (151), and the other end is plugged into the plug (126); The plug (126) is plugged into the socket (125) of the second transfer box (152) of the second skid (42); The socket (125) of the second transfer box (152) is plugged into the incoming cable (32), and the incoming cable (32) is connected to the terminal of the electrical component in the second skid (42).

7. The skid-mounted electric control integrated substation according to claim 6, characterized in that: The adapter box (1) further comprises an integrated adapter box (153) provided with the plug (126) and the socket (125); the pry block (4) further comprises a third pry block (43) and a fourth pry block (44) on which the integrated adapter box (153) is respectively provided; The two incoming cables (32) of the two integrated transfer boxes (153) are respectively connected to the terminals of the electrical components in the third skid (43) and the fourth skid (44), and are respectively connected to the sockets (125) of the two integrated transfer boxes (153); One end of the outgoing cable (31) is connected to the plug (126) of the integrated transfer box (153) of the third skid (43), and the other end is connected to the plug (126) of the integrated transfer box (153) of the fourth skid (44), and the plug (126) is correspondingly plugged into the socket (125).

8. A wiring method using the skid-mounted electric control integrated substation as claimed in claim 6 or 7, characterized in that: include: One end of the outlet cable (31) is connected to a terminal of an electrical component in the first skid (41), and the other end is plugged into the plug (126); The plug (126) is plugged into the socket (125) of the second transfer box (152) of the second skid (42); The socket (125) of the second transfer box (152) is plugged into the incoming cable (32), and the incoming cable (32) is connected to the terminal of the electrical component in the second skid (42).

9. The wiring method of the skid-mounted electric-control integrated substation according to claim 8, characterized in that: The skid (4) further comprises a third skid (43) and a fourth skid (44) each provided with an integrated transfer box (153); The two incoming cables (32) of the two integrated transfer boxes (153) are respectively connected to the terminals of the electrical components in the third skid (43) and the fourth skid (44), and are respectively connected to the sockets (125) of the two integrated transfer boxes (153); One end of the outgoing cable (31) is connected to the plug (126) of the integrated transfer box (153) of the third skid (43), and the other end is connected to the plug (126) of the integrated transfer box (153) of the fourth skid (44), and the plug (126) is correspondingly plugged into the socket (125).

10. The wiring method of the skid-mounted electric-control integrated substation according to claim 9, characterized in that: A switchable box door plate (13) is provided on one side of the transfer box (1), a magnetic member (131) is provided on the side wall of the box door plate (13), a magnetic sensor (132) is provided on the inner wall of the transfer box (1) corresponding to the magnetic member (131), an interface of the socket (125) is provided with a conduction switch, the outlet cable (31) is provided with a current oscilloscope (311), and the transfer box (1) is provided with a sub-controller that is communicatively connected to the magnetic sensor (132), the conduction switch and the current oscilloscope (311); The wiring method further comprises: The sub-controller uses the current database to train a convolutional neural network to generate a current waveform extraction model, uses the current waveform extraction model to extract the waveform features of the current signal collected by the current oscilloscope (311), compares the waveform features with the fault waveform, and determines whether the connection of the outgoing cable (31) is normal based on the comparison result.

11. The wiring method of the skid-mounted electric-control integrated substation according to claim 10, characterized in that: Performing a wavelet transform on the current signal to obtain a wavelet coefficient, wherein a scale factor of the wavelet transform is determined according to an average amplitude of the current signal; Calculating the modulus maximum of the wavelet coefficients, inputting the modulus maximum into a convolutional neural network, and determining a characteristic waveform of the current signal; The characteristic waveform is compared with the fault waveform, and whether the connection of the outgoing cable (31) is normal is determined based on the comparison result.

12. The wiring method of the skid-mounted electric-control integrated substation according to claim 10, characterized in that: The sub-controller is communicatively connected to the main controller of the skid-mounted electric control integrated substation, and the plug (126) is internally provided with a radio frequency identification tag communicatively connected to the sub-controller; The wiring method further comprises: The main controller records the correspondence information between the number of the electrical component, the number of the socket (125) and the number of the plug (126); The sub-controller reads the radio frequency identification tag to identify the number of the plug (126) and sends it to the main controller; The main controller determines whether the serial number and the label correspond to each other according to the corresponding relationship information. If they do not correspond, an alarm message is generated, and the conduction switch is controlled to be turned off through the sub-controller.

13. The wiring method of the skid-mounted electric-control integrated substation according to claim 12, characterized in that: The main controller is equipped with a substation cloud platform, and the substation cloud platform is communicatively connected with the sub-controller; The substation cloud platform receives and stores the corresponding relationship information, wherein the corresponding relationship information includes the wiring relationship within the pry block between the electrical components within a pry block (4) and the socket (125) / plug (126), and the planned wiring relationship between the electrical components of the two pry blocks (4); The main controller determines the number and the corresponding label according to the planned wiring relationship and the wiring relationship in the skid.

14. The wiring method of the skid-mounted electric-control integrated substation according to claim 12, characterized in that: The plug (126) is provided with a number display (1261), and the socket (125) or a mounting wall (12) close to the plug is provided with a number display (1251); The wiring method further comprises: The main controller controls the corresponding label display (1261) and serial number display (1251) to display the same number.

15. The wiring method of the skid-mounted electric-control integrated substation according to any one of claims 10 to 14, characterized in that: The inner wall of the transfer box (1) is provided with a temperature sensor and a fan heater (133) penetrating both the inner and outer sides, and both are connected to the sub-controller for communication; The wiring method further comprises: When the temperature sensor detects that the temperature inside the transfer box (1) is at the condensation temperature when the box door panel (13) is closed, the temperature sensor sends a temperature increase signal to the sub-controller, and the sub-controller controls the fan heater (133) to operate to prevent condensed water from generating a fault arc.

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