CN111198516A - Circuit breaker, topological characteristic signal generation system, method and device - Google Patents
Circuit breaker, topological characteristic signal generation system, method and device Download PDFInfo
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Abstract
The application provides a circuit breaker, a topological characteristic signal generating system, a topological characteristic signal generating method and a topological characteristic signal generating device, and relates to the technical field of circuit breakers. The circuit breaker includes: circuit breaker body, mutual-inductor, control panel and communication module, wherein: the mutual inductor, the communication module and the control panel are all arranged on the circuit breaker body; the control panel is provided with: the device comprises a processor, a sampling unit and a signal generating unit; the input ends of the sampling unit and the signal generating unit are respectively and electrically connected with the processor; one end of the mutual inductor is electrically connected with the sampling unit, the processor is electrically connected with the communication module, the other end of the mutual inductor is connected with the power line, the output end of the signal generation unit is further connected with the power line, and the communication module is used for connecting an upper computer. Compared with the prior art, the problem that the circuit breaker in the prior art does not have the function of sending the topological characteristic signals, an independent topological characteristic signal generation module needs to be configured, wiring is complex, and wiring errors are easily caused is solved.
Description
Technical Field
The application relates to the technical field of circuit breakers, in particular to a circuit breaker, a topological characteristic signal generating system, a topological characteristic signal generating method and a topological characteristic signal generating device.
Background
The ubiquitous power internet of things is an intelligent service system which is characterized by comprehensive state sensing, efficient information processing and convenient and flexible application, fully applies modern information technologies such as mobile interconnection and artificial intelligence and advanced communication technologies around each link of a power system, realizes the mutual object interconnection and man-machine interaction of each link of the power system and has the advantages of comprehensive state sensing, efficient information processing and convenient and flexible application.
With the construction of the national grid on the ubiquitous power internet of things, the power distribution equipment is required to have a topological characteristic signal sending function.
However, the existing circuit breaker does not have the function of sending the topological characteristic signals, an independent topological characteristic signal generating module needs to be configured, and the topological characteristic signal generating module is connected with the circuit breaker body through a voltage line, so that the wiring is complex, and the wiring is easy to make mistakes.
Disclosure of Invention
An object of the present application is to provide a circuit breaker, a topological characteristic signal generating system, a method and a device for solving the problems in the prior art that a circuit breaker does not have a function of sending a topological characteristic signal, an independent topological characteristic signal generating module needs to be configured, and the topological characteristic signal generating module is connected to a circuit breaker body through a voltage line, which results in complex wiring and easy wiring error.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a circuit breaker, including: circuit breaker body, mutual-inductor, control panel and communication module, wherein:
the mutual inductor, the communication module and the control panel are all arranged on the circuit breaker body; the control panel is provided with: the device comprises a processor, a sampling unit and a signal generating unit; the input ends of the sampling unit and the signal generating unit are respectively electrically connected with the processor, and the signal generating unit is used for generating a topological characteristic signal;
the one end of mutual-inductor with the sampling unit electricity is connected, the treater with the communication module electricity is connected, the power line is connected to the other end of mutual-inductor, the output of signal generation unit still is connected the power line, communication module is used for connecting the host computer.
Optionally, the communication module comprises: a power carrier communication unit and/or a cable communication unit.
Optionally, the signal generating unit includes: the signal generation unit includes: resistors R22, R23, R24 and R25; an inductance L4; capacitance Cx 1; an optical coupler U11; a thyristor D32; and a piezoresistor RV 4.
Wherein:
one end of the optocoupler U11 is respectively connected with the resistor R22 and the digital ground, and the other end of the optocoupler U11 is respectively connected with the resistor R23 and the controlled silicon D32;
the resistor R23, the resistor R25, the inductor L4 and the controlled silicon D32 are respectively connected with the piezoresistor RV 4;
the resistor R24, the capacitor Cx1 and the voltage dependent resistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1.
Optionally, the optical coupler U11 includes: 1 foot, 2 foot, 4 feet and 6 feet, wherein:
the resistor R22 is connected with a pin 1 of the optocoupler U11;
2 pins of the optical coupler U11 are grounded;
the 4 pins of the optocoupler U11, the resistor R24, the capacitor Cx1 and the piezoresistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1;
one end of the resistor R23 is connected with the 6 pins of the optocoupler U11, and the other end of the resistor R23 is respectively connected with the resistor R25, the inductor L4, the controlled silicon D32 and the piezoresistor RV 4.
In a second aspect, an embodiment of the present application further provides a topological feature signal generating system, where the system includes: host computer, circuit breaker and power line, the circuit breaker is any one of above-mentioned first aspect the circuit breaker, wherein:
the upper computer is connected with the communication module in the circuit breaker; the power line is respectively connected with the signal generating unit in the circuit breaker and one end of the mutual inductor.
In a third aspect, another embodiment of the present application provides a method for sending a topological characteristic signal, which is applied to the circuit breaker in the first aspect, and the method includes:
acquiring a current signal on the power line sensed by the mutual inductor through the sampling unit;
detecting a zero crossing point of the current signal;
and if the current signal zero crossing point is detected, sending an execution instruction to the signal generation unit, wherein the execution instruction is used for enabling the signal generation unit to generate a topological characteristic signal according to the execution instruction and outputting the topological characteristic signal to the power line.
Optionally, the executing the instruction comprises: and the characteristic parameters are used for enabling the signal generation unit to generate the topological characteristic signals corresponding to the characteristic parameters according to the characteristic parameters.
Optionally, the execution instruction is a pulse modulation instruction, and the characteristic parameter is at least one modulation parameter corresponding to the pulse modulation instruction;
the pulse modulation instruction is used for enabling the signal generation unit to generate the topological characteristic signal corresponding to the pulse modulation instruction according to the pulse modulation instruction.
Optionally, the at least one modulation parameter comprises: the topological characteristic signal generating method comprises the following steps of presetting pulse width, presetting pulse amplitude, pulse number and pulse frequency, wherein a pulse width modulation instruction of the presetting pulse width is used for enabling the signal generating unit to generate the topological characteristic signal of the presetting pulse width.
In a fourth aspect, another embodiment of the present application provides an apparatus for sending a topology characteristic signal, where the apparatus includes: the device comprises an acquisition module, a detection module and an execution module, wherein:
the acquisition module is used for acquiring a current signal on the power line sensed by the mutual inductor through the sampling unit;
the detection module is used for detecting the zero crossing point of the current signal;
the execution module is configured to send an execution instruction to the signal generation unit if the current signal zero-crossing point is detected, where the execution instruction is configured to enable the signal generation unit to generate a topology characteristic signal according to the execution instruction, and output the topology characteristic signal to the power line.
Adopt the circuit breaker that this application provided, this circuit breaker includes: the circuit breaker comprises a circuit breaker body, a mutual inductor, a control panel and a communication module, wherein a processor, a sampling unit and a signal generating unit are arranged on the control panel, the processor is electrically connected with the communication module, the signal generating unit can generate topological characteristic signals in the setting, and meanwhile, the output end of the signal generating unit is also connected with a power line, so that after the processor receives control instructions sent to the communication module by an upper computer, the control signal generating unit generates corresponding topological characteristic signals according to the control instructions and transmits the topological characteristic signals to the power line. Therefore, the circuit breaker provided by the application can generate and send the topological characteristic signal to the power line without additionally arranging an additional topological characteristic signal generating module, the topological characteristic signal sending function of the circuit breaker is realized, and the wiring error caused by complex wiring can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a circuit breaker according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a signal generating unit according to an embodiment of the present application;
FIG. 4 is a waveform diagram of the current signal and the topological characteristic signal after superposition;
fig. 5 is a schematic structural diagram of a topological feature signal generating system according to an embodiment of the present application;
fig. 6 is a schematic flowchart of a method for transmitting a topology characteristic signal according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a device for sending a topology characteristic signal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present application, and as shown in fig. 1, the circuit breaker 100 includes: circuit breaker body 110, mutual inductor 120, control panel 130 and communication module 140, wherein:
the transformer 120, the communication module 140 and the control board 130 are all disposed on the circuit breaker body 110; the control board 130 is provided with: a processor 131, a sampling unit 132, and a signal generation unit 133; wherein, the input terminals of the sampling unit 132 and the signal generating unit 133 are electrically connected to the processor 131, respectively, and the signal generating unit 133 is configured to generate the topology characteristic signal.
One end of the mutual inductor 120 is electrically connected with the sampling unit 132, the processor 131 is electrically connected with the communication module 140, the other end of the mutual inductor 120 is connected with the power line 220, the output end of the signal generating unit 133 is also connected with the power line 220, and the communication module 140 is used for connecting an upper computer.
Alternatively, in the circuit breaker 100 provided by the present application, the transformer 120 may be a current transformer, one end of the transformer 120 may be a primary coil of the transformer 120, and the other end of the transformer 120 may be a secondary coil of the transformer 120, that is, the primary coil of the transformer 120 may be electrically connected to the sampling unit 132, and the secondary coil of the transformer 120 is connected to one end of the power line 220. The other end of the power line 220 may connect to any type of electrical device in the power distribution network.
Optionally, the upper computer may be configured to receive the topology characteristic signal sent by the circuit breaker 100 through the communication module 140; if the circuit breaker 100 needs to be controlled to send a certain topological characteristic signal, the upper computer can also be used for sending a control instruction to the processor 131 through the communication module 140, and the processor 131 controls the signal generating unit 133 to send a corresponding topological characteristic signal according to the control instruction after receiving the control instruction; the upper computers for receiving the signals and sending the control instructions can be the same upper computer or different upper computers, and can be designed according to user requirements.
After receiving an instruction sent by the upper computer through the communication module 140, the processor 131 performs zero crossing point detection on the current signal through the sampling unit 132, and when a zero crossing point of the current signal is detected, the processor sends an execution instruction to the signal generation unit 133 according to the instruction sent by the upper computer, so as to control the signal generation unit 133 to generate and output a topology characteristic signal to the power line 220 according to the execution instruction, so that the topology characteristic signal is superposed with the current signal on the power line 220.
The circuit breaker comprises a control panel, a processor, a sampling unit, a signal generating unit, a power line and a control signal generating unit, wherein the control panel is provided with the processor, the sampling unit and the signal generating unit, the processor is electrically connected with a communication module, the signal generating unit can generate a topological characteristic signal through the setting, and meanwhile, the output end of the signal generating unit is also connected with the power line.
Optionally, the communication module 140 includes: and each communication unit is used for connecting an upper computer and used as a communication medium between the processor 131 and the upper computer. In one embodiment of the present application, at least one of the communication units comprises: the power line carrier communication unit and/or the cable communication unit, and the selection of the specific communication unit may be designed according to the user's needs, and the application is not limited herein.
Of course, the at least one communication unit may also comprise other types of communication units, not limited to the power carrier communication unit and/or the cable communication unit described above. If the communication module 140 includes various types of communication units, the reliability of information transmission between the circuit breaker 100 and an upper computer can be effectively ensured, information transmission faults caused by faults of a certain type of communication unit can be effectively avoided, and the normal use of the circuit breaker is ensured.
Fig. 2 is a schematic structural diagram of a circuit breaker according to another embodiment of the present application, if at least one of the communication units includes: a power carrier communication unit 141 and a cable communication unit 142, and a schematic diagram of the circuit breaker at this time is shown in fig. 2.
Fig. 3 is a schematic structural diagram of a signal generating unit according to an embodiment of the present application, and fig. 4 is a waveform diagram of a current signal and a topological characteristic signal after being superimposed, as shown in fig. 3, the signal generating unit includes: resistors R22, R23, R24 and R25; an inductance L4; capacitance Cx 1; an optical coupler U11; a thyristor D32; a voltage dependent resistor RV 4; wherein:
one end of the optocoupler U11 is respectively connected with the resistor R22 and the digital ground, and the other end of the optocoupler U11 is respectively connected with the resistor R23 and the controlled silicon D32; the resistor R23, the resistor R25, the inductor L4 and the controlled silicon D32 are respectively connected with the voltage dependent resistor RV 4; the resistor R24, the capacitor Cx1 and the voltage dependent resistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1.
Specifically, the optical coupler U11 includes: 1 foot, 2 foot, 4 feet and 6 feet, wherein:
the resistor R22 is connected with a pin 1 of the optocoupler U11; a pin 2 of the optical coupler U11 is grounded; the 4 feet of the optocoupler U11, the resistor R24, the capacitor Cx1 and the piezoresistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1; one end of the resistor R23 is connected with a pin 6 of the optocoupler U11, and the other end of the resistor R23 is connected with the resistor R25, the inductor L4, the controlled silicon D32 and the piezoresistor RV4 respectively.
The input interface is used for receiving a PWN signal, after the signal generation unit can receive an execution instruction sent by the processor, U11 in the signal generation unit is conducted, the R23 loop and the R24 loop can generate a voltage signal and a current signal, so that the D23 loop and the L4 loop generate a topological characteristic signal waveform, the amplitude of the loop current is limited through the action of the inductor L4, the generated topological characteristic signal waveform is superposed on a current signal on a power line through the output interface, and the waveform formed by superposing the topological characteristic signal and the current signal is shown in FIG. 4.
Fig. 5 is a schematic structural diagram of a topological characteristic signal generating system according to an embodiment of the present application, and as shown in fig. 5, the topological characteristic signal generating system 200 includes: host computer 211, power line 220 and the circuit breaker 100 that fig. 1-4 provided above, wherein:
the upper computer 211 is connected with a communication module 140 in the circuit breaker 100; for sending control commands to the circuit breaker 100; the power line 220 is respectively connected to the signal generating unit 133 of the circuit breaker 100 and one end of the transformer 120, and is configured to transmit a current signal to the circuit breaker 100 and obtain a topological characteristic signal generated by the circuit breaker 100.
Optionally, in an embodiment of the present application, the upper computer may also be a control device of the power device connected to the power line, wherein the upper computer connected to the communication module 140 and the upper computer controlling the power device may be the same upper computer or different upper computers, and is specifically designed according to user needs, and the present application is not limited herein.
By adopting the topological characteristic signal generating system provided by the application, after the processor receives an instruction of an upper computer through the communication unit, the current signal acquired by the sampling unit is subjected to zero crossing point detection and judgment, when the current signal crosses the zero point, the processor sends an execution instruction to the signal generating unit, the signal generating unit is controlled to generate a corresponding topological characteristic signal waveform according to a preset modulation parameter, and the topological characteristic signal is output and superposed on the current signal of the power line, and the signal generating unit is directly integrated on the circuit breaker, so that the topological characteristic signal can be generated and sent to the power line without adding an additional topological characteristic signal generating module, the topological characteristic signal sending function of the circuit breaker is realized, and the wiring error caused by complex wiring can be avoided.
Fig. 6 is a schematic flowchart of a method for sending a topology characteristic signal according to an embodiment of the present application, which is applied to the circuit breaker provided in fig. 1 to 4 and can be executed by a processor in the circuit breaker, where the method includes:
s201: and acquiring a current signal on the power line sensed by the mutual inductor through the sampling unit.
One end of the mutual inductor is connected with the sampling unit, and the other end of the mutual inductor is connected with the power line, so that the mutual inductor can transmit the sensed current signal on the power line to the sampling unit.
The processor can acquire the current signal on the power line sampled by the sampling unit through the sampling unit after receiving an instruction of the upper computer through the communication module.
S202: and detecting the zero crossing point of the current signal.
The processor can detect the zero crossing point of the acquired current signal after the acquired current signal, and judge whether the current signal crosses the zero crossing point, that is, whether the ordinate of the current signal on the oscillogram is the zero crossing point.
If the zero crossing point of the current signal is detected, S203 is executed: and sending an execution instruction to the signal generation unit.
The execution instruction is used for enabling the signal generation unit to generate the topological characteristic signal according to the execution instruction, and the topological characteristic signal is output to the power line.
In an embodiment of the application, the execution instruction may be a pulse modulation signal PWN, and the signal generation unit generates a topology characteristic signal according to the PWN signal and a preset signal generation rule after receiving the PWN signal, and sends the generated topology characteristic signal to the power line, so as to realize superposition of the topology characteristic signal and the current signal.
By adopting the method for sending the topological characteristic signal, after the processor receives the instruction sent by the upper computer through the communication unit, the processor obtains the current signal on the power line through the sampling unit, detects the zero point of the current signal, and sends the execution instruction to the signal generation unit after detecting the zero crossing point of the current signal, the control signal generation unit generates the topological characteristic signal according to the execution instruction and outputs the topological characteristic signal to the power line, so that the sending of the topological characteristic signal is completed.
Optionally, in an embodiment of the present application, executing the instruction includes: and the characteristic parameters are used for enabling the signal generation unit to generate topological characteristic signals corresponding to the characteristic parameters according to the characteristic parameters.
Optionally, in an embodiment of the present application, the execution instruction is a pulse modulation instruction, and the characteristic parameter includes at least one modulation parameter corresponding to the pulse modulation instruction; the pulse modulation instruction is used for enabling the signal generating unit to generate a topological characteristic signal corresponding to the pulse modulation instruction according to the pulse modulation instruction.
The signal generating unit is controlled to generate corresponding topological characteristic signals according to the pulse modulation instructions, so that the signal generating unit can generate the topological characteristic signals required by a user according to the pulse modulation instructions, the generation of the topological characteristic signals can be controlled according to the requirements of the user, and if the user needs different topological characteristic signals, only different pulse modulation instructions need to be sent, so that the generation of the topological characteristic signals meets the requirements of the user.
Optionally, the at least one modulation parameter includes a preset pulse width, and the pulse width modulation instruction of the preset pulse width is used for enabling the signal generation unit to generate a topological characteristic signal of the preset pulse width.
Optionally, the at least one modulation parameter further comprises at least one of: and presetting pulse amplitude, pulse number and pulse frequency. The content included in the specific modulation parameters may be designed according to the user's needs, and is not limited to the parameters given in the above embodiments, and the application is not limited thereto.
For example, in an embodiment of the present application, when the processor receives an instruction of an upper computer through the power carrier communication module, the processor obtains a current signal on a power line induced by the transformer through the sampling unit, and performs zero crossing point detection and judgment on the current signal. When the zero crossing point of the current signal is detected, the processor sends a PWN signal with a preset pulse width to the signal generating unit at the time of the zero crossing point, in an embodiment of the present application, the preset pulse width is 1.5ms, but in a specific application, the value of the preset pulse width given in the above embodiment is not limited; after receiving the preset pulse width, the signal generating unit generates a corresponding topological characteristic signal waveform according to preset modulation parameters, repeatedly sends the topological characteristic signal waveform with a preset pulse amplitude according to a preset period or a preset pulse number and a preset pulse frequency, and outputs and superposes the topological characteristic signal generated each time on a current signal of the power line.
By adopting the sending method of the topological characteristic signal, after the processor receives the instruction of the upper computer through the communication unit, the current signal acquired through the sampling unit is subjected to zero crossing point detection and judgment, when the current signal crosses the zero point, the processor sends an execution instruction to the signal generating unit, the signal generating unit is controlled to generate a corresponding topological characteristic signal waveform according to the preset modulation parameter, and the topological characteristic signal is output and superposed on the current signal of the power line, and because the signal generating unit is directly integrated on the circuit breaker, an additional topological characteristic signal generating module is not required to be added, the sending function of the topological characteristic signal of the circuit breaker is realized, and the wiring error caused by complex wiring can be avoided.
Fig. 7 is a schematic structural diagram of a device for sending a topology characteristic signal according to an embodiment of the present application, and as shown in fig. 7, the device includes: an obtaining module 301, a detecting module 302 and an executing module 303, wherein:
the obtaining module 301 is configured to obtain, through the sampling unit, a current signal on the power line sensed by the transformer.
And a detecting module 302, configured to detect a zero crossing point of the current signal.
The executing module 303 is configured to send an execution instruction to the signal generating unit if a zero crossing point of the current signal is detected, where the execution instruction is used to enable the signal generating unit to generate a topology characteristic signal according to the execution instruction, and output the topology characteristic signal to the power line.
Optionally, the present application also provides a program product, such as a storage medium, on which a computer program is stored, including a program, which, when executed by a processor, performs embodiments corresponding to the above-described method.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to perform some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Claims (10)
1. A circuit breaker, characterized in that the circuit breaker comprises: circuit breaker body, mutual-inductor, control panel and communication module, wherein:
the mutual inductor, the communication module and the control panel are all arranged on the circuit breaker body; the control panel is provided with: the device comprises a processor, a sampling unit and a signal generating unit; the input ends of the sampling unit and the signal generating unit are respectively electrically connected with the processor, and the signal generating unit is used for generating a topological characteristic signal;
the one end of mutual-inductor with the sampling unit electricity is connected, the treater with the communication module electricity is connected, the power line is connected to the other end of mutual-inductor, the output of signal generation unit still is connected the power line, communication module is used for connecting the host computer.
2. The circuit breaker of claim 1, wherein the communication module comprises: a power carrier communication unit and/or a cable communication unit.
3. The circuit breaker according to any one of claims 1-2, characterized in that the signal generation unit comprises: resistors R22, R23, R24 and R25; an inductance L4; capacitance Cx 1; an optical coupler U11; a thyristor D32; a piezoresistor RV4, wherein:
one end of the optocoupler U11 is respectively connected with the resistor R22 and the digital ground, and the other end of the optocoupler U11 is respectively connected with the resistor R23 and the controlled silicon D32;
the resistor R23, the resistor R25, the inductor L4 and the controlled silicon D32 are respectively connected with the piezoresistor RV 4;
the resistor R24, the capacitor Cx1 and the voltage dependent resistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1.
4. The circuit breaker of claim 3, wherein the optocoupler U11 includes: 1 foot, 2 foot, 4 feet and 6 feet, wherein:
the resistor R22 is connected with a pin 1 of the optocoupler U11;
2 pins of the optical coupler U11 are grounded;
the 4 pins of the optocoupler U11, the resistor R24, the capacitor Cx1 and the piezoresistor RV4 are respectively connected with the controllable silicon D32, and the resistor R25 is connected with the capacitor Cx 1;
one end of the resistor R23 is connected with the 6 pins of the optocoupler U11, and the other end of the resistor R23 is respectively connected with the resistor R25, the inductor L4, the controlled silicon D32 and the piezoresistor RV 4.
5. A topological feature signal generation system, said system comprising: host computer, circuit breaker and power line, the circuit breaker be the circuit breaker of any one of above-mentioned claim 1-4, wherein:
the upper computer is connected with the communication module in the circuit breaker; the power line is respectively connected with the signal generating unit in the circuit breaker and one end of the mutual inductor.
6. A method for transmitting a topological characteristic signal, which is applied to the circuit breaker of any one of claims 1-4, the method comprising:
acquiring a current signal on the power line sensed by the mutual inductor through the sampling unit;
detecting a zero crossing point of the current signal;
and if the current signal zero crossing point is detected, sending an execution instruction to the signal generation unit, wherein the execution instruction is used for enabling the signal generation unit to generate a topological characteristic signal according to the execution instruction and outputting the topological characteristic signal to the power line.
7. The method of claim 6, wherein the executing the instruction comprises: and the characteristic parameters are used for enabling the signal generation unit to generate the topological characteristic signals corresponding to the characteristic parameters according to the characteristic parameters.
8. The method of claim 7, wherein the execution instruction is a pulse modulation instruction, and the characteristic parameter is at least one modulation parameter corresponding to the pulse modulation instruction;
the pulse modulation instruction is used for enabling the signal generation unit to generate the topological characteristic signal corresponding to the pulse modulation instruction according to the pulse modulation instruction.
9. The method of claim 8, wherein the at least one modulation parameter comprises: the topological characteristic signal generating method comprises the following steps of presetting pulse width, presetting pulse amplitude, pulse number and pulse frequency, wherein a pulse width modulation instruction of the presetting pulse width is used for enabling the signal generating unit to generate the topological characteristic signal of the presetting pulse width.
10. An apparatus for transmitting a topology characterization signal, the apparatus comprising: the device comprises an acquisition module, a detection module and an execution module, wherein:
the acquisition module is used for acquiring a current signal on the power line sensed by the mutual inductor through the sampling unit;
the detection module is used for detecting the zero crossing point of the current signal;
the execution module is configured to send an execution instruction to a signal generation unit if the current signal zero-crossing point is detected, where the execution instruction is used to enable the signal generation unit to generate a topology characteristic signal according to the execution instruction, and output the topology characteristic signal to the power line.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167265A (en) * | 2020-08-21 | 2022-03-11 | 上海良信电器股份有限公司 | Circuit breaker topology network identification method, circuit breaker, device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018493Y (en) * | 2007-02-16 | 2008-02-06 | 刘晓胜 | Universal transmission device for narrowband power line communication |
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN104917547A (en) * | 2015-06-25 | 2015-09-16 | 威胜集团有限公司 | TPLC based power line power frequency communication system |
| CN109525285A (en) * | 2018-11-13 | 2019-03-26 | 国网江苏省电力有限公司电力科学研究院 | A kind of Power Line Carrier Communication Module with power network topology perceptional function |
| CN211375344U (en) * | 2020-02-28 | 2020-08-28 | 上海良信电器股份有限公司 | Circuit breaker and topological characteristic signal generating system |
-
2020
- 2020-02-28 CN CN202010133665.5A patent/CN111198516A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018493Y (en) * | 2007-02-16 | 2008-02-06 | 刘晓胜 | Universal transmission device for narrowband power line communication |
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN104917547A (en) * | 2015-06-25 | 2015-09-16 | 威胜集团有限公司 | TPLC based power line power frequency communication system |
| CN109525285A (en) * | 2018-11-13 | 2019-03-26 | 国网江苏省电力有限公司电力科学研究院 | A kind of Power Line Carrier Communication Module with power network topology perceptional function |
| CN211375344U (en) * | 2020-02-28 | 2020-08-28 | 上海良信电器股份有限公司 | Circuit breaker and topological characteristic signal generating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167265A (en) * | 2020-08-21 | 2022-03-11 | 上海良信电器股份有限公司 | Circuit breaker topology network identification method, circuit breaker, device and system |
| CN114167265B (en) * | 2020-08-21 | 2024-04-16 | 上海良信电器股份有限公司 | Circuit breaker topology network identification method, circuit breaker, device and system |
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