CN211151955U - Circuit breaker and circuit breaker system - Google Patents
Circuit breaker and circuit breaker system Download PDFInfo
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- CN211151955U CN211151955U CN202020235342.2U CN202020235342U CN211151955U CN 211151955 U CN211151955 U CN 211151955U CN 202020235342 U CN202020235342 U CN 202020235342U CN 211151955 U CN211151955 U CN 211151955U
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Abstract
The utility model provides a circuit breaker and circuit breaker system relates to low voltage circuit breaker technical field. The circuit breaker includes: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor; the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body; the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the breaker body; the power taking end of the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body. The method can improve the acquisition efficiency of the relevant information of the circuit breaker and realize the intelligent management and maintenance of the circuit breaker.
Description
Technical Field
The utility model relates to a low voltage circuit breaker technical field particularly, relates to a circuit breaker and circuit breaker system.
Background
With the increase of power consumption demand, the service of more efficiently and rapidly meeting the normal living order and the social development demand of people is realized, and the intelligent power grid strategy is implemented and promoted to achieve comprehensive monitoring and application. Distribution is an extremely important link in the generation, transmission and use of electricity, a distribution system comprises a transformer and various high-low voltage electrical equipment, and a low-voltage circuit breaker is an electrical appliance with a large using amount.
Generally, a conventional circuit breaker can realize operations such as cutting off a fault circuit in a power grid according to the magnitude of signals such as current and voltage in a power grid system, so that the normal operation of each line in the power grid is ensured, and the normal power consumption of a user is met.
However, the traditional circuit breaker cannot realize the transmission of the relevant information of the circuit breaker, so that the relevant information of the circuit breaker is low in acquisition efficiency, and the intelligent management and maintenance of the circuit breaker cannot be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit breaker and circuit breaker system to the not enough among the above-mentioned prior art to it is lower to solve the relevant information acquisition efficiency of circuit breaker that exists among the prior art, can't realize the intelligent management of circuit breaker and the problem of maintaining.
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: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor;
the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body;
the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the circuit breaker body;
the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body.
Optionally, the power line carrier communication unit is connected with a power line end of any phase of power in the three-phase power line end.
Optionally, the circuit breaker further comprises: the circuit breaker comprises a circuit breaker body, a signal generating unit, a processing unit and a mutual inductor, wherein the circuit breaker body is provided with a control end, the control end of the signal generating unit is connected with the processing unit, and the output end of the signal generating unit is connected with the secondary coil of the mutual inductor.
Optionally, the electricity taking end of the signal generating unit is connected with any one of three phases of the power outlet end of the circuit breaker body, or the electricity taking end of the signal generating unit is connected with any one of three phases of the power outlet end of the circuit breaker body and the primary coil of the transformer.
Optionally, the circuit breaker further comprises a power supply unit;
and the power supply end of the power supply unit is respectively connected with the power supply end of the power line carrier communication unit, the power supply end of the processing unit and the power supply end of the signal generation unit.
Optionally, the power taking end of the power line carrier communication unit is connected with the power line inlet end on the circuit breaker body in any one of the following manners: welding, socket connection and crimping; the power taking end of the signal generating unit is connected with any one of the three phases of the power outlet end or any one of the three phases of the power outlet end of the circuit breaker body and the primary coil of the mutual inductor in any one of the following modes: welding, socket connection and crimping.
In a second aspect, an embodiment of the present application provides a circuit breaker system, where the circuit breaker system includes a plurality of circuit breakers described in the first aspect and an upper computer;
the circuit breakers are arranged in an upper-lower multi-stage topological structure;
and the power line carrier communication unit in each circuit breaker is connected with the upper computer.
In a third aspect, an embodiment of the present application provides a circuit breaker communication method, which is applied to the circuit breaker of the first aspect; the method comprises the following steps:
the processing unit acquires a first electric signal sensed by the mutual inductor through the sampling unit;
the processing unit analyzes the first electric signal and determines whether a protection mechanism of the circuit breaker is triggered;
and the processing unit transmits the first electric signal and an analysis result of whether the protection mechanism is triggered to an upper computer through the power line carrier communication unit.
Optionally, the method further comprises:
the processing unit acquires a topology instruction sent by the upper computer through the power line carrier communication unit;
the processing unit generates a topology execution instruction according to the topology instruction and transmits the execution instruction to the signal generation unit, wherein the execution instruction is used for controlling the signal generation unit to generate a topology signal according to the execution instruction;
the processing unit samples a second electric signal induced by the mutual inductor through the sampling unit and extracts a topological signal from the second electric signal;
the processing unit analyzes the topological signal, generates a topological result and sends the topological result to the upper computer through the power line carrier communication unit.
Optionally, the method further comprises: the processing unit transmits the information of the circuit breaker body to the upper computer through the power line carrier communication unit; the breaker body information comprises at least one of the following information: the product information of the circuit breaker body, the state information of the circuit breaker body and the topology information of the circuit breaker body.
Optionally, the acquiring, by the processing unit, the topology instruction sent by the upper computer through the power line carrier communication unit includes:
the processing unit receives the topology instruction sent by the power line carrier communication unit in a serial port communication mode, and the topology instruction is the instruction sent by the upper computer to the power line carrier communication unit.
In a fourth aspect, an embodiment of the present application further provides a circuit breaker communication device, which is applied to the circuit breaker of the first aspect; the device comprises: the device comprises an acquisition module, an analysis module and a transmission module;
the acquisition module is used for acquiring a first electric signal of the power outlet end sensed by the mutual inductor through the sampling unit by the processing unit;
the analysis module is used for analyzing the first electric signal by the processing unit and determining whether a protection mechanism of the circuit breaker is triggered;
and the transmission module is used for transmitting the first electric signal and the analysis result of whether the protection mechanism is triggered to the upper computer by the processing unit through the power line carrier communication unit.
Optionally, the apparatus further comprises: the device comprises an acquisition module and a generation module;
the acquisition module is used for the processing unit to acquire the topology instruction sent by the upper computer through the power line carrier communication unit;
the generating module is used for generating a topology executing instruction by the processing unit according to the topology instruction;
the transmission module is further configured to transmit the execution instruction to the signal generation unit, where the execution instruction is used to control the signal generation unit to generate a second electrical signal according to the execution instruction;
the acquisition module is further used for acquiring a second electric signal induced by the mutual inductor through the sampling unit by the processing unit and extracting the topological signal from the second electric signal;
the analysis module is further configured to analyze the topology signal by the processing unit to generate a topology analysis result;
and the transmission module is also used for transmitting the topology analysis result to the upper computer through the power line carrier communication unit.
Optionally, the transmission module is further configured to transmit the information of the circuit breaker body to the upper computer through the processing unit by using the power line carrier communication unit; the breaker body information comprises at least one of the following information: the product information of the circuit breaker body, the state information of the circuit breaker body and the topology information of the circuit breaker body.
Optionally, the obtaining module is specifically configured to receive, by the processing unit, the topology instruction sent by the power line carrier communication unit in a serial port communication manner, where the topology instruction is an instruction sent by the upper computer to the power line carrier communication unit.
The beneficial effect of this application is:
the embodiment of the application provides a circuit breaker, includes: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor; the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body; the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the breaker body; the power taking end of the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body. Through connecting power line carrier communication unit at the electric power inlet wire end of circuit breaker body, can guarantee the real-time communication of power line carrier communication unit and host computer, even break the power failure at circuit breaker body, under the unable normal condition of working, power line carrier communication unit still can normally communicate to in sending the fault information of circuit breaker to the host computer in time transmitting, so that the staff can in time acquire the relevant information of circuit breaker, and carry out the circuit breaker maintenance, thereby effectively improved the intelligent management and the maintenance of circuit breaker.
In addition, the circuit breaker further comprises a signal generating unit, wherein the signal generating unit is arranged on the circuit breaker body, the control end of the signal generating unit is connected with the processing unit, and the output end of the signal generating unit is connected with the secondary coil of the mutual inductor; the electricity taking end of the signal generating unit is connected with the electric power outlet end of the circuit breaker body, or the electricity taking end of the signal generating unit is connected between the electric power outlet end of the circuit breaker body and the primary coil of the mutual inductor. The power of the signal generating unit is taken from the power outlet end, networking topology signals can be generated and identified, the generated networking topology result can be transmitted to the upper computer through the power line carrier communication unit, and intelligent management and maintenance of the circuit breaker in the power grid system are further improved.
The embodiment of the application provides a communication method for a circuit breaker, which comprises the following steps: the processing unit acquires a first electric signal sensed by the mutual inductor through the sampling unit; the processing unit analyzes the first electric signal and determines whether a protection mechanism of the circuit breaker is triggered; the processing unit transmits the first electric signal and an analysis result of whether the protection mechanism is triggered to the upper computer through the power line carrier communication unit. The information interaction of the upper computer of the circuit breaker can be realized through the power line carrier communication unit, and the management of the circuit breaker can be effectively improved by sending the first electric signal and the trigger analysis result of the circuit breaker protection mechanism to the upper computer.
In addition, the processing unit can also control the signal generating unit to generate characteristic waves according to the acquired networking topology instructions sent by the upper computer, extract topology signals according to the characteristic waves, generate topology results and send the topology results to the upper computer through the power line carrier communication unit. Through the topological result, the relevant information of each breaker in the power grid can be conveniently monitored, so that the unified management and maintenance of the breakers can be conveniently improved. In addition, when any breaker breaks down, a large amount of manpower is not required to be invested to check the position information of the fault breaker, and the related information of the fault breaker can be rapidly obtained through a topological result.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a circuit breaker apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of another circuit breaker apparatus provided in an embodiment of the present application;
fig. 3 is a schematic diagram of another circuit breaker apparatus provided in an embodiment of the present application;
fig. 4 is a schematic diagram of another breaker apparatus provided in the embodiment of the present application;
fig. 5 is a schematic diagram of another breaker apparatus provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a circuit breaker system according to an embodiment of the present disclosure;
fig. 7 is a schematic flowchart of a circuit breaker communication method according to an embodiment of the present disclosure;
fig. 8 is a schematic flowchart of another breaker communication method according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a circuit breaker communication device according to an embodiment of the present disclosure;
fig. 10 is a schematic diagram of another breaker communication device provided in an embodiment of the present application;
fig. 11 is a schematic device diagram of another circuit breaker according to an embodiment of the present disclosure.
Icon: 100-a circuit breaker body; 110-incoming line end; 120-outlet terminal; 101-a power line carrier communication unit; 102-a processing unit; 103-a sampling unit; 104-a transformer; 105-a signal generating unit; 106-a power supply unit; 200-a circuit breaker system; 210-an upper computer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Fig. 1 is a schematic diagram of a circuit breaker apparatus according to an embodiment of the present disclosure; as shown in fig. 1, the circuit breaker may include: the circuit breaker comprises a circuit breaker body 100, a power line carrier communication unit 101, a processing unit 102, a sampling unit 103 and a transformer 104; the power line carrier communication unit 101, the processing unit 102, the sampling unit 103, and the transformer 104 are all disposed on the circuit breaker body 100.
It should be noted that the Power line Carrier communication Unit 101 may utilize a P L C (Power L ine Carrier ) technology to realize interaction with external information, that is, the interaction between the relevant information of the circuit breaker and the external information may be realized through the Power line Carrier communication Unit 101, and the processing Unit 102 may be a processor, a controller, a Micro Controller Unit (MCU), also called a single chip microcomputer, or the like.
As shown in fig. 1, the power line carrier communication unit 101 and the sampling unit 103 are both connected to the processing unit 102, the sampling unit 103 is also connected to the secondary coil of the transformer 104, and the primary coil of the transformer 104 is connected to the power outlet 120 of the circuit breaker body 100; the power-taking end of the power line carrier communication unit 101 is connected to the power-taking end 110 of the circuit breaker body 100.
It should be noted that, the power taking end of the power line carrier communication unit 101 is connected to the power line inlet end 110 on the circuit breaker body 100, so that real-time communication between the power line carrier communication unit 101 and an upper computer can be ensured, even if the circuit breaker body is powered off and cannot work normally, the power line carrier communication unit 101 can still communicate normally, and fault information of the circuit breaker is transmitted to the upper computer in time, so that a worker can obtain relevant information of the circuit breaker in time, and the circuit breaker is maintained, thereby effectively improving intelligent management and maintenance of the circuit breaker.
Under the working state of the circuit breaker, the sampling unit 103 collects voltage signals and current signals in the circuit breaker system, wherein the collected voltage signals and current signals can be real-time voltage signals and current signals in the system, and the sampling unit 103 sends the collected voltage signals and current signals to the processing unit 102 for analysis. Alternatively, the processing unit 102 determines whether to trigger the corresponding protection mechanism of the circuit breaker body 100. For example, the processing unit 102 may compare the received voltage signal with a preset voltage threshold, compare the received current signal with a preset current threshold, and if the voltage signal or the current signal satisfies a preset condition (the current signal exceeds the preset current threshold, or the voltage signal exceeds the preset voltage threshold), the processing unit 102 controls the circuit breaker to open, so as to implement the monitoring and circuit protection functions of the circuit breaker, thereby effectively avoiding the faults such as circuit short circuit caused by overvoltage, overcurrent, and the like, and implementing effective protection of the circuit, thereby ensuring normal operation of the power grid system.
In some embodiments, the voltage signal, the current signal, and the like received by the processing unit 102 may be sent to the upper computer through the plc communication unit 101, that is, the processing unit 102 sends the received voltage signal, current signal, and the like to the plc communication unit 101, so that the plc communication unit 101 may transmit the voltage signal, current signal, and the like to the upper computer in the form of a power carrier through the power transmission line.
It should be noted that the related information of different circuit breakers can be transmitted to the same upper computer, so that the unified maintenance and management of a plurality of circuit breakers in the power grid system are facilitated, and the convenience and the high efficiency of management are improved.
To sum up, the circuit breaker provided by the embodiment includes: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor; the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body; the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the breaker body; the power taking end of the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body. Through connecting power line carrier communication unit at the electric power inlet wire end of circuit breaker body, can guarantee the real-time communication of power line carrier communication unit and host computer, even break the power failure at circuit breaker body, under the unable normal condition of working, power line carrier communication unit still can normally communicate to in sending the fault information of circuit breaker to the host computer in time transmitting, so that the staff can in time acquire the relevant information of circuit breaker, and carry out the circuit breaker maintenance, thereby effectively improved the intelligent management and the maintenance of circuit breaker.
Optionally, the power line inlet 110 is a three-phase inlet, and the power line inlet of the power line carrier communication unit 101 is connected to any one phase of power line inlet of the three-phase inlet 110.
Fig. 2 is a schematic diagram of another breaker apparatus according to an embodiment of the present disclosure. The circuit breaker can be generally classified into a three-phase circuit breaker and a four-phase circuit breaker, the three-phase circuit breaker generally includes an a pole, a B pole, and a C pole, the four-phase circuit breaker generally includes an a pole, a B pole, a C pole, and an N pole, and the three-phase circuit breaker is taken as an example in this embodiment. As shown in fig. 2, the power-taking end of the power line carrier communication unit 101 is connected to the a-pole line end of the three-phase line end 110, of course, the connection manner between the power line carrier communication unit 101 and the three-phase line end 110 shown in fig. 2 is only one of all realizable manners, and the power-taking end of the power line carrier communication unit 101 may also be connected to the B-pole line end or the C-pole line end of the three-phase line end 110, which is not shown in fig. 2 one by one.
Optionally, the power taking end of the power line carrier communication unit 101 is connected to the power line inlet end 110 of the circuit breaker body 100 in any one of the following manners: welding, socket connection and crimping. Of course, in practical applications, the connection manner is not limited to the three illustrated manners, and the embodiment is not particularly limited.
Fig. 3 is a schematic diagram of another breaker apparatus according to an embodiment of the present disclosure. Optionally, as shown in fig. 3, the circuit breaker may further include: and a signal generating unit 105, wherein the signal generating unit 105 is arranged on the circuit breaker body 100, the control end of the signal generating unit 105 is connected with the processing unit 102, and the output end of the signal generating unit 105 is connected with the secondary coil of the mutual inductor 104.
In some embodiments, the circuit breaker provided by the present application further includes a signal generating unit 105, and the signal generating unit 105 is mainly used for topology networking identification and transmission, and realizes low-voltage distribution network topology networking and the like.
Optionally, the processing unit 102 may process and analyze the received networking topology signal sent by the upper computer through the power line carrier communication unit 101, and send a networking topology control signal to the signal generating unit 105 to drive the networking topology signal to generate, the signal generating unit 105 generates a corresponding characteristic wave, that is, a special-shaped wave, according to the networking topology instruction, the transformer 104 senses and detects the characteristic wave, the sampling unit 103 collects the characteristic wave detected by the transformer 104, and sends the characteristic wave to the processing unit 102 for processing and analysis, so as to generate a topology result, and further, the topology result is transmitted to the upper computer through the power line carrier communication unit 101.
Fig. 4 is a schematic view of another breaker apparatus provided in this embodiment of the present application, as shown in fig. 4, in some embodiments, the power-taking terminal of the signal generating unit 105 is connected to any one of three phases of the power outlet 120 of the breaker body 100.
Alternatively, similar to the power line inlet end, in this embodiment, the power outlet end is also a three-phase outlet end, and the power outlet end of the signal generating unit 105 is connected to any phase power outlet end of the three-phase outlet end 120, for example, to an a pole, a B pole or a C pole, and as the connection mode is the same as the connection mode of the power line carrier communication unit 101 and the three-phase inlet end 110, it can be understood with reference to fig. 2.
It should be noted that the power-taking terminal of the signal generating unit 105 is connected to the three-phase outgoing terminals 120, and after the signal generating unit 105 receives the networking topology instruction sent by the processing unit 102, a characteristic wave may be generated on a line corresponding to any one of the connected three-phase outgoing terminals 120. If the power-taking end of the signal generating unit 105 is connected to the three-phase line-in end 110, the generation and identification of the networking topology cannot be driven.
In other embodiments, the power-taking terminal of the signal generating unit 105 may be further connected to any one of three phases between the power outlet 120 of the circuit breaker body 100 and the primary coil of the transformer 104.
Alternatively, the power-taking terminal of the signal generating unit 105 is not limited to be connected to any one of the three phases of the power outlet terminal 120. Or any one of three phases connected between the power outlet 120 and the primary coil of the transformer 104, that is, the power of the signal generating unit 105 is not limited to be taken from the three-phase outlet 120, and only needs to be taken from behind the transformer 104, so as to ensure that the transformer 104 can accurately sense and detect the characteristic wave generated by the signal generating unit 105.
Alternatively, similar to the connection manner of the power line carrier communication unit 101 and the power inlet terminal 110, the power inlet terminal of the signal generating unit 105 and any one of the three phases of the power outlet terminal 120 on the circuit breaker body 100 may be connected in any one of the following manners: welding, socket connection and crimping. When the power-taking end of the signal generating unit 105 is connected to any one of three phases between the power outlet 120 of the circuit breaker body 100 and the primary coil of the transformer 104, the connection may be made in any one of the following manners: welding, socket connection and crimping. Of course, the connection is not limited to the three listed connection modes.
Fig. 5 is a schematic diagram of another circuit breaker apparatus provided in the embodiment of the present application, and optionally, as shown in fig. 5, the circuit breaker may further include a power supply unit 106; the power supply terminal of the power supply unit 106 is connected to the power supply terminal of the power line carrier communication unit 101, the power supply terminal of the processing unit 102, and the power supply terminal of the signal generation unit 105, respectively. The power supply unit 106 is configured to supply power to the power line carrier communication unit 101, the processing unit 102, and the signal generation unit 105, so as to ensure normal operation of each unit.
To sum up, the embodiment of the present application provides a circuit breaker, includes: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor; the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body; the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the breaker body; the power taking end of the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body. Through connecting power line carrier communication unit at the electric power inlet wire end of circuit breaker body, can guarantee the real-time communication of power line carrier communication unit and host computer, even break the power failure at circuit breaker body, under the unable normal condition of working, power line carrier communication unit still can normally communicate to in sending the fault information of circuit breaker to the host computer in time transmitting, so that the staff can in time acquire the relevant information of circuit breaker, and carry out the circuit breaker maintenance, thereby effectively improved the intelligent management and the maintenance of circuit breaker.
In addition, the circuit breaker further comprises a signal generating unit, wherein the signal generating unit is arranged on the circuit breaker body, the control end of the signal generating unit is connected with the processing unit, and the output end of the signal generating unit is connected with the secondary coil of the mutual inductor; the electricity taking end of the signal generating unit is connected with the electric power outlet end of the circuit breaker body, or the electricity taking end of the signal generating unit is connected between the electric power outlet end of the circuit breaker body and the primary coil of the mutual inductor. The power of the signal generating unit is taken from the power outlet end, networking topology signals can be generated and identified, the generated networking topology result can be transmitted to the upper computer through the power line carrier communication unit, and intelligent management and maintenance of the circuit breaker in the power grid system are further improved.
Fig. 6 is a schematic structural diagram of a circuit breaker system provided in an embodiment of the present application, and optionally, as shown in fig. 6, the circuit breaker system 200 may include a plurality of circuit breakers and an upper computer 210 in the foregoing embodiments. The upper computer 210 is connected to the power line carrier communication unit 101 in each circuit breaker.
As shown only exemplarily in fig. 6, one circuit breaker whose power line carrier communication unit 101 is connected to the upper computer 210. In practical application, the number of the circuit breakers can be multiple, and the multiple circuit breakers are arranged in a top-level and bottom-level topological structure. Each circuit breaker is connected to the upper computer 210 through its own power line carrier communication unit.
Optionally, in this embodiment, on one hand, the upper computer 210 may send information to the processing unit 102 through the power line carrier communication unit 101, so that the processing unit 102 may generate corresponding instruction information according to the received information, so as to control a state of the circuit breaker, or control generation of a networking topology. On the other hand, the processing unit 102 may process and analyze the received information sent by other units, and transmit the processing result to the upper computer 210 through the power line carrier communication unit 101. This can be understood with particular reference to the following examples.
It should be noted that the following embodiments are described for the communication method of the circuit breaker, and some communication methods have been described in the above embodiments describing the circuit breaker, and can be understood in combination with the above embodiments.
Fig. 7 is a schematic flowchart of a circuit breaker communication method according to an embodiment of the present application. The breaker communication method can be applied to the breaker. As shown in fig. 7, the method may include:
s101, a processing unit collects a first electric signal sensed by a mutual inductor through a sampling unit.
Optionally, the first electrical signal may include: the voltage signal and the current signal are not limited to the voltage signal and the current signal, and may be electric energy, electric power, or the like. In this embodiment, a voltage signal and a current signal are taken as examples for description.
In some embodiments, after the transformer senses the first electrical signal, the first electrical signal may be scaled down to be processed by the processing unit, so that the processing unit can process the first electrical signal. Furthermore, the first electric signal can be subjected to filtering, difference and other processing so as to improve the anti-interference capability of the first electric signal and improve the accuracy of the first electric signal acquired by the sampling unit. The sampling unit sends the finally acquired first electric signal to the processing unit.
S102, the processing unit analyzes the first electric signal and determines whether a protection mechanism of the circuit breaker is triggered.
Alternatively, the processing unit may determine whether to trigger a protection mechanism of the circuit breaker according to the received first electrical signal and a preset determination rule. For example: the processing unit may perform comparison analysis according to the first electrical signal and a preset first electrical signal threshold. Such as: and comparing the voltage signal with a preset voltage threshold value, comparing the current signal with a preset current threshold value and the like, and if the voltage signal exceeds the preset voltage threshold value or the current signal exceeds the preset current threshold value, determining to trigger a protection mechanism of the circuit breaker, and timely cutting off the circuit breaker to protect the circuit.
S103, the processing unit transmits the first electric signal and an analysis result of whether the protection mechanism is triggered to an upper computer through the power line carrier communication unit.
In some embodiments, the processing unit may transmit the received first electrical signal and a trigger analysis result of the circuit breaker protection mechanism to an upper computer through the power line carrier communication unit. So that the operating personnel can know the reason of the disconnection of the circuit breaker in time according to the first electric signal stored in the upper computer, the trigger analysis result and the like, and the circuit breaker can be conveniently managed if the circuit breaker normally works.
Fig. 8 is a schematic flowchart of another breaker communication method according to an embodiment of the present application. Optionally, as shown in fig. 8, the method may further include:
s201, the processing unit acquires a topology instruction sent by the upper computer through the power line carrier communication unit.
Optionally, the processing unit may transmit information to the upper computer through the power line carrier communication unit, and of course, the processing unit may also obtain information sent by the upper computer through the power line carrier communication unit. In this embodiment, when the networking topology is implemented, the processing unit obtains the networking topology instruction sent by the upper computer through the power line carrier communication unit.
S202, the processing unit generates a topology execution instruction according to the topology instruction and transmits the execution instruction to the signal generation unit, and the execution instruction is used for controlling the signal generation unit to generate a second electric signal according to the execution instruction.
Optionally, after the processing unit processes and analyzes the obtained topology instruction, the processing unit generates a corresponding topology execution instruction to send to the signal generation unit, so that the signal generation unit generates a second electrical signal according to the execution instruction, where the second electrical signal is also called a special-shaped wave, which is a characteristic wave corresponding to the topology instruction.
S203, the processing unit samples the second electric signal induced by the mutual inductor through the sampling unit, and extracts the topological signal from the second electric signal.
Optionally, the mutual inductor senses and detects the characteristic wave generated by the signal generating unit, the sampling unit collects the characteristic wave, the sampling unit sends the collected characteristic wave to the processing unit for processing and analysis, and the processing unit can analyze and extract the corresponding networking topology signal from the characteristic wave.
And S204, analyzing the topological signal by the processing unit to generate a topological result, and sending the topological result to the upper computer through the power line carrier communication unit.
Optionally, the processing unit generates a topology result according to the networking topology signal, and sends the topology result to the upper computer through the power line carrier communication unit. The topological result can be understood as a mesh graph formed by the cascade relations among all the circuit breakers in the power grid system. Through the topological result, the relevant information of each breaker in the power grid can be conveniently monitored, so that the unified management and maintenance of the breakers can be conveniently improved. In addition, when any breaker breaks down, a large amount of manpower is not required to be invested to check the position information of the fault breaker, and the related information of the fault breaker can be rapidly obtained through a topological result.
In some embodiments, the processing unit can also transmit the information of the circuit breaker body to the upper computer according to the received circuit breaker state demand information sent by the upper computer through the power line carrier communication unit. Optionally, the breaker body information may include at least one of the following information: the product information of the circuit breaker body, the state information of the circuit breaker body and the topology information of the circuit breaker body. Wherein, the product information of the circuit breaker body may include: information such as information on the housing, voltage, current, frequency, etc.; the state information of the circuit breaker body may include: protection information of the circuit breaker, closing and opening state information and the like; and the topological information of the breaker body is also the generated topological result.
Optionally, in step S201, the acquiring, by the processing unit, the topology instruction sent by the upper computer through the power line carrier communication unit may include: the processing unit receives a topology instruction sent by the power line carrier communication unit in a serial port communication mode, and the topology instruction is an instruction sent to the power line carrier communication unit by the upper computer.
To sum up, the circuit breaker communication method provided by the embodiment of the present application includes: the processing unit acquires a first electric signal sensed by the mutual inductor through the sampling unit; the processing unit analyzes the first electric signal and determines whether a protection mechanism of the circuit breaker is triggered; the processing unit transmits the first electric signal and an analysis result of whether the protection mechanism is triggered to the upper computer through the power line carrier communication unit. The information interaction of the upper computer of the circuit breaker can be realized through the power line carrier communication unit, and the management of the circuit breaker can be effectively improved by sending the first electric signal and the trigger analysis result of the circuit breaker protection mechanism to the upper computer.
In addition, the processing unit can also control the signal generating unit to generate characteristic waves according to the acquired networking topology instructions sent by the upper computer, extract topology signals according to the characteristic waves, generate topology results and send the topology results to the upper computer through the power line carrier communication unit. Through the topological result, the relevant information of each breaker in the power grid can be conveniently monitored, so that the unified management and maintenance of the breakers can be conveniently improved. In addition, when any breaker breaks down, a large amount of manpower is not required to be invested to check the position information of the fault breaker, and the related information of the fault breaker can be rapidly obtained through a topological result.
Fig. 9 is a schematic diagram of a circuit breaker communication device according to an embodiment of the present application, where the device may be applied to a processing unit in the circuit breaker; alternatively, as shown in fig. 9, the apparatus may include: an acquisition module 301, an analysis module 302 and a transmission module 303.
The acquisition module 301 is used for acquiring a first electric signal of an electric power outlet end induced by the mutual inductor through the sampling unit by the processing unit;
an analysis module 302, configured to analyze the first electrical signal by the processing unit, and determine whether to trigger a protection mechanism of the circuit breaker;
and the transmission module 303 is used for transmitting the first electric signal and an analysis result of whether the protection mechanism is triggered to the upper computer by the processing unit through the power line carrier communication unit.
Optionally, as shown in fig. 10, the apparatus may further include: an acquisition module 304 and a generation module 305;
the obtaining module 304 is configured to obtain, by the processing unit, a topology instruction sent by the upper computer through the power line carrier communication unit;
a generating module 305, configured to generate a topology executing instruction according to the topology instruction by the processing unit;
the transmission module 303 is further configured to transmit the execution instruction to the signal generation unit, where the execution instruction is used to control the signal generation unit to generate a second electrical signal according to the execution instruction;
the acquisition module 301 is further configured to acquire, by the processing unit, a second electrical signal induced by the transformer through the sampling unit, and extract a topology signal from the second electrical signal;
the analysis module 302 is further configured to analyze the topology signal by the processing unit to generate a topology analysis result;
and the transmission module 303 is further configured to send the topology analysis result to the upper computer through the power line carrier communication unit.
Optionally, the transmission module 303 is further configured to transmit the information of the circuit breaker body to an upper computer through the processing unit by using the power line carrier communication unit; the breaker body information comprises at least one of the following information: the product information of the circuit breaker body, the state information of the circuit breaker body and the topology information of the circuit breaker body.
Optionally, the obtaining module 304 is specifically configured to receive, by the processing unit, a topology instruction sent by the power line carrier communication unit in a serial communication manner, where the topology instruction is an instruction sent by the upper computer to the power line carrier communication unit.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 11 is a schematic device diagram of another circuit breaker provided in an embodiment of the present application, where the circuit breaker may include: a processing unit 701 and a storage unit 702. In addition, the circuit breaker further includes the circuit breaker body 100, the power line carrier communication unit 101, the processing unit 102, the sampling unit 103, the transformer 104, the signal generating unit 105 and the power supply unit 106 in the above embodiments, wherein the connection relationship and specific description among the circuit breaker body 100, the power line carrier communication unit 101, the processing unit 102, the sampling unit 103, the transformer 104, the signal generating unit 105 and the power supply unit 106 can be understood with reference to the foregoing embodiments.
The storage unit 702 is used for storing programs, and the processing unit 701 calls the programs stored in the storage unit 702 to execute the above method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the present invention also provides a program product, such as a computer readable storage medium, comprising a program for performing the above-mentioned method embodiments when the program is executed by a processing unit.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other manners. 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 invention 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 (english: processor) to execute some steps of the method according to various embodiments of the present invention. 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 (6)
1. A circuit breaker, characterized in that the circuit breaker comprises: the circuit breaker comprises a circuit breaker body, a power line carrier communication unit, a processing unit, a sampling unit and a mutual inductor;
the power line carrier communication unit, the processing unit, the sampling unit and the mutual inductor are all arranged on the circuit breaker body;
the power line carrier communication unit and the sampling unit are both connected with the processing unit, the sampling unit is also connected with a secondary coil of the mutual inductor, and a primary coil of the mutual inductor is connected with a power outlet end on the circuit breaker body;
the power line carrier communication unit is connected with a power line inlet end on the circuit breaker body.
2. The circuit breaker according to claim 1, wherein the power line inlet end is a three-phase inlet end, and the power taking end of the power line carrier communication unit is connected with any one phase of power line inlet end of the three-phase inlet end.
3. The circuit breaker of claim 1, further comprising: the circuit breaker comprises a circuit breaker body, a signal generating unit, a processing unit and a mutual inductor, wherein the circuit breaker body is provided with a control end, the control end of the signal generating unit is connected with the processing unit, and the output end of the signal generating unit is connected with the secondary coil of the mutual inductor.
4. The circuit breaker according to claim 3, wherein the power-taking terminal of the signal generating unit is connected to any one of three phases of the power outlet terminal of the circuit breaker body, or,
and the electricity taking end of the signal generating unit is connected with any one of three phases between the electric power outlet end of the circuit breaker body and the primary coil of the mutual inductor.
5. The circuit breaker according to any of claims 3-4, characterized in that it further comprises a power supply unit;
and the power supply end of the power supply unit is respectively connected with the power supply end of the power line carrier communication unit, the power supply end of the processing unit and the power supply end of the signal generation unit.
6. A circuit breaker system, comprising a plurality of circuit breakers of any of claims 1-5 and a host computer;
the circuit breakers are arranged in an upper-lower multi-stage topological structure;
and the power line carrier communication unit in each circuit breaker is connected with the upper computer.
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|---|---|---|---|
| CN202020235342.2U CN211151955U (en) | 2020-02-28 | 2020-02-28 | Circuit breaker and circuit breaker system |
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| CN202020235342.2U CN211151955U (en) | 2020-02-28 | 2020-02-28 | Circuit breaker and circuit breaker system |
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| CN211151955U true CN211151955U (en) | 2020-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211811A (en) * | 2020-02-28 | 2020-05-29 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, circuit breaker communication method and device |
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- 2020-02-28 CN CN202020235342.2U patent/CN211151955U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211811A (en) * | 2020-02-28 | 2020-05-29 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, circuit breaker communication method and device |
| CN111211811B (en) * | 2020-02-28 | 2024-03-22 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, and circuit breaker communication method and device |
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Effective date of registration: 20210726 Address after: Room 1205-3, 1817 Haigang Avenue, Xitangqiao Street (Haiyan Economic Development Zone), Haiyan County, Jiaxing City, Zhejiang Province, 314300 Patentee after: Liangxin Electrical Appliances (Haiyan) Co.,Ltd. Patentee after: Shanghai Liangxin Electrical Co.,Ltd. Address before: No. 2000, Shenjiang South Road, Pudong New Area, Shanghai, 201315 Patentee before: Shanghai Liangxin Electrical Co.,Ltd. |
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