CN110829351A - Intelligent control system and method for primary and secondary fusion circuit breaker - Google Patents
Intelligent control system and method for primary and secondary fusion circuit breaker Download PDFInfo
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- CN110829351A CN110829351A CN201910963397.7A CN201910963397A CN110829351A CN 110829351 A CN110829351 A CN 110829351A CN 201910963397 A CN201910963397 A CN 201910963397A CN 110829351 A CN110829351 A CN 110829351A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
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Abstract
The invention discloses an intelligent control system and method for a primary and secondary fusion breaker, which comprises the following steps: the analysis and identification module receives data through the electrical interface unit and/or the digital interface unit and analyzes and identifies the received data to determine the data type of the received data; the three-phase inconsistency protection module is used for carrying out three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body; the opening and closing control module is used for carrying out three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body and sending an opening operation command to the circuit breaker body to realize opening operation when the three-phase inconsistency of the circuit breaker body is determined; the pressure state analysis module is used for carrying out pressure low analysis according to the acquired pressure state information of the circuit breaker body; and the energy storage state analysis module is used for carrying out energy storage starting, energy storage overtime and non-energy storage locking and closing analysis according to the acquired energy storage state information of the breaker body.
Description
Technical Field
The invention relates to the technical field of large power grid control protection, in particular to an intelligent control system and method for a primary and secondary fusion circuit breaker.
Background
At present, a breaker switching-on and switching-off loop, a current and voltage secondary loop and a state monitoring loop in an intelligent substation need to be respectively led to an intelligent terminal, a merging unit and an online monitoring device in a control convergence cabinet, so that connection with a protection device and a measurement and control device is realized. The circuit breaker body is produced by a primary equipment manufacturer, the intelligent terminal, the merging unit and the like are produced and provided by a secondary equipment manufacturer, and field personnel realize the loop connection between the circuit breaker and the control cubicle according to a drawing issued by a design institute. Because the circuit breaker body is not integrally designed, the interface definition between the circuit breaker body and the control cubicle is not uniform, complex and various, and the compatibility and interchangeability between the circuit breaker primary equipment and the circuit breaker secondary equipment of different manufacturers are poor. The current situation brings much inconvenience to design units and users in the aspects of device design, debugging and operation and maintenance, and the workload of design, debugging and operation and maintenance is increased to a great extent.
Specifically, the current circuit breaker equipment adopts a large number of secondary cables to be connected with secondary equipment such as protection, measurement and control and the like, and secondary circuits are complicated due to different design styles of different circuit breaker manufacturers; if a transformer substation is rebuilt or secondary equipment is replaced, the current complex loop needs to be repeatedly verified in the transformation process, a large amount of manpower and material resources are consumed, and meanwhile, the transformation process has large safety risks and is easy to cause safety accidents. The inconsistent protection of three-phase of circuit breaker body need be through time relay time delay export tripping operation after satisfying the inconsistent condition of three-phase, but the time relay precision of the inconsistent protection configuration of present circuit breaker three-phase is relatively poor, appears the inconsistent protection action time of three-phase and is less than the problem that reclosing time caused the unable coincidence of circuit breaker easily. In addition, the online monitoring device for collecting the operating state of the circuit breaker at present is installed in a distributed mode in the control cubicle, centralized collection of the operating state of the circuit breaker cannot be carried out, and isolated island of the operating state information of the circuit breaker is caused.
Disclosure of Invention
The invention provides an intelligent control system and method for a primary and secondary fusion circuit breaker, which are used for solving the problems of poor compatibility and interchangeability between primary and secondary devices of circuit breakers of different manufacturers and the problem of isolated island of circuit breaker operation state information caused by the fact that centralized summarization of the operation states of the circuit breakers cannot be carried out.
In order to solve the above problems, according to an aspect of the present invention, there is provided a primary and secondary convergence breaker intelligent control system, the system including: intelligent control device, electric interface unit and digital interface unit, intelligent control device includes: an analysis and identification module, a switching-on and switching-off control module, a three-phase inconsistency protection module, a pressure state analysis module and an energy storage state analysis module,
the analysis and identification module is used for receiving data through the electrical interface unit and/or the digital interface unit and analyzing, identifying and processing the received data to determine the data type of the received data;
the three-phase inconsistency protection module is used for carrying out three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body when the data type indicates that the acquired data is the position state information of the circuit breaker body, and sending a switching-off operation command to the circuit breaker body when the three-phase inconsistency of the circuit breaker body is determined, so as to control the circuit breaker body to realize switching-off operation;
the switching-on/off control module is used for controlling the circuit breaker body to realize switching-on/off operation or switching-on operation according to the acquired switching-on/off instruction when the data acquired by the data type instruction is the switching-on/off instruction sent by the control protection device;
the pressure state analysis module is used for carrying out pressure low analysis according to the acquired pressure state information of the circuit breaker body when the data type indicates that the acquired data is the pressure state information of the circuit breaker body;
and the energy storage state analysis module is used for carrying out energy storage starting, energy storage overtime and non-energy storage locking and closing analysis according to the acquired energy storage state information of the circuit breaker body when the data acquired by the data type indication is the energy storage state information of the circuit breaker body.
Preferably, the three-phase inconsistency protection module is configured to compare the acquired position state information of the circuit breaker body with a preset three-phase inconsistency criterion, start and time the three-phase inconsistency protection when it is determined that the circuit breaker body is inconsistent in three phases, and send a switching-off operation command to the circuit breaker body when the start time reaches a first preset time threshold, so as to control the circuit breaker body to implement switching-off operation.
Preferably, the switching-on/off control module is configured to, when the data obtained by the data type indication is a switching-on/off command sent by a control protection device, determine whether low pressure locking occurs at this time according to the pressure state analysis module; when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation; when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
Preferably, the pressure state analysis module is configured to, when the data type indicates that the obtained data is pressure state information of the circuit breaker body, judge the pressure state information and obtain a judgment result; if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device; and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
Preferably, the energy storage state analysis module is configured to, when the data type indicates that the acquired data is circuit breaker energy storage circuit limit switch state information, perform motor energy storage starting analysis according to the acquired circuit breaker energy storage circuit limit switch state information, and when it is determined that motor energy storage starting occurs in the circuit breaker body, control starting of an energy storage motor contactor outside the intelligent control device in a time sequence to realize circuit breaker motor energy storage starting; when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor; and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
Preferably, the intelligent control device further comprises:
and the online monitoring module is used for acquiring pressure data, temperature data and local discharge data of the circuit breaker body and sending the pressure data, the temperature data and the local discharge data to an external monitoring background.
According to another aspect of the present invention, there is provided a primary and secondary convergence breaker intelligent control method, the method including:
the analysis and identification module receives data through the electrical interface unit and/or the digital interface unit and analyzes and identifies the received data to determine the data type of the received data;
when the data type indicates that the acquired data is the position state information of the circuit breaker body, the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when the three-phase inconsistency of the circuit breaker body is determined, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to realize switching-off operation;
when the data obtained by the data type indication is a switching-on and switching-off instruction sent by the control protection device, the switching-on and switching-off control module controls the circuit breaker body to realize switching-on and switching-off operation according to the obtained switching-on and switching-off instruction;
when the data obtained by the data type indication is the pressure state information of the circuit breaker body, the pressure state analysis module carries out pressure low analysis according to the obtained pressure state information of the circuit breaker body;
and the energy storage state analysis module performs energy storage starting, energy storage overtime and non-energy storage locking and closing analysis according to the acquired energy storage state information of the circuit breaker body when the data acquired by the data type indication is the energy storage state information of the circuit breaker body.
Preferably, the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when it is determined that the three-phase inconsistency occurs in the circuit breaker body, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to realize switching-off operation, and includes:
the obtained position state information of the circuit breaker body is compared with a preset three-phase inconsistency criterion, when the fact that the three phases of the circuit breaker body are inconsistent is confirmed, three-phase inconsistency protection is started and timing is conducted, when starting time reaches a first preset time threshold, a switching-off operation command is sent to the circuit breaker body, and the circuit breaker body is controlled to achieve switching-off operation.
Preferably, when the data obtained by the data type indication is a switching-on/off command sent by the control protection device, the switching-on/off control module controls the circuit breaker body according to the obtained switching-on/off command to realize switching-on/off operation or switching-on operation, and includes:
when the data obtained by the data type indication is a switching-on/off command sent by a control protection device, judging whether low pressure locking occurs at the moment according to the pressure state analysis module;
when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation;
when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
Preferably, when the data type indicates that the acquired data is pressure state information of the circuit breaker body, the pressure state analysis module performs pressure low analysis according to the acquired pressure state information of the circuit breaker body, and the pressure state analysis module includes:
when the data obtained by the data type indication is pressure state information of the circuit breaker body, judging the pressure state information and obtaining a judgment result;
if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device;
and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
Preferably, when the data obtained by the data type indication is the energy storage state information of the circuit breaker body, the energy storage state analysis module performs energy storage starting, energy storage overtime and non-energy storage blocking and closing analysis according to the obtained energy storage state information of the circuit breaker body, and includes:
when the data type indicates that the acquired data is the state information of the limit switch of the circuit breaker energy storage circuit, performing motor energy storage starting analysis according to the acquired state information of the limit switch of the circuit breaker energy storage circuit, and when determining that the motor energy storage starting occurs in the circuit breaker body, controlling the starting of an energy storage motor contactor outside the intelligent control device in a time sequence manner to realize the energy storage starting of the circuit breaker motor;
when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor;
and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
Preferably, wherein the method further comprises:
and the online monitoring module is used for acquiring pressure data, temperature data and local discharge data of the circuit breaker body and sending the pressure data, the temperature data and the local discharge data to an external monitoring background.
The invention provides a primary and secondary fusion breaker intelligent control system and a method, wherein the system comprises: intelligent control device, electric interface unit and digital interface unit, intelligent control device includes: the analysis and identification module receives data through the electrical interface unit and/or the digital interface unit and analyzes, identifies and processes the received data to determine the data type of the received data; and the other modules are used for carrying out corresponding processing operation according to the data type. The intelligent control system of the primary and secondary fusion circuit breaker provides a standardized interface for the circuit breaker and a protection control device, and improves the compatibility of primary and secondary equipment of the circuit breaker; the circuit breaker state information can be subjected to centralized summarizing analysis, and the problem that information islands are formed by circuit breaker state monitoring systems independently is solved; the functions of breaking and closing control, low-pressure locking, non-energy-storage locking and closing, three-phase inconsistency and the like are integrated, an alarm can be given, the reliability of protection of the circuit breaker body is improved, the reconstruction and the expansion of a transformer substation are facilitated, and convenience is brought to the construction and the debugging of the transformer substation.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
fig. 1 is a schematic structural diagram of a primary and secondary fusion breaker intelligent control system 100 according to an embodiment of the invention;
fig. 2 is an exemplary diagram of a primary and secondary fusion breaker intelligent control system according to an embodiment of the invention;
FIG. 3 is a flow chart of the main functions performed by the intelligent control device according to an embodiment of the present invention; and
fig. 4 is a flowchart of a method 400 for intelligently controlling a primary and secondary convergence circuit breaker according to an embodiment of the invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a schematic structural diagram of an intelligent control system 100 for a primary and secondary fusion breaker according to an embodiment of the present invention. As shown in fig. 1, the intelligent control system for the primary and secondary fusion circuit breaker provided by the embodiment of the invention provides a standardized interface for the circuit breaker and a protection control device, and improves the compatibility of the primary and secondary devices of the circuit breaker; the circuit breaker state information can be subjected to centralized summarizing analysis, and the problem that information islands are formed by circuit breaker state monitoring systems independently is solved; the functions of breaking and closing control, low-pressure locking, non-energy-storage locking and closing, three-phase inconsistency and the like are integrated, an alarm can be given, the reliability of protection of the circuit breaker body is improved, the reconstruction and the expansion of a transformer substation are facilitated, and convenience is brought to the construction and the debugging of the transformer substation. The embodiment of the invention provides a primary and secondary fusion breaker intelligent control system 100, which comprises: an intelligent control device 101, an electrical interface unit 102 and a digital interface unit 103, the intelligent control device 101 comprising: the system comprises an analysis and identification module 1011, a switching-on and switching-off control module 1012, a three-phase inconsistent protection module 1013, a pressure state analysis module 1014 and an energy storage state analysis module 1015.
Preferably, the analysis and identification module 1011 is configured to receive data through the electrical interface unit and/or the digital interface unit, and perform analysis and identification processing on the received data to determine a data type of the received data.
Preferably, the three-phase inconsistency protection module 1012 is configured to, when the data type indicates that the acquired data is the position state information of the circuit breaker body, perform three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when it is determined that the three-phase inconsistency occurs in the circuit breaker body, send a switching-off operation command to the circuit breaker body, and control the circuit breaker body to implement switching-off operation.
Preferably, the three-phase inconsistent protection module 1012 performs three-phase inconsistent analysis according to the acquired position state information of the circuit breaker body, and sends a switching-off operation command to the circuit breaker body when determining that the three phases of the circuit breaker body are inconsistent, so as to control the circuit breaker body to implement the switching-off operation, including:
the obtained position state information of the circuit breaker body is compared with a preset three-phase inconsistency criterion, when the fact that the three phases of the circuit breaker body are inconsistent is confirmed, three-phase inconsistency protection is started and timing is conducted, when starting time reaches a first preset time threshold, a switching-off operation command is sent to the circuit breaker body, and the circuit breaker body is controlled to achieve switching-off operation.
Preferably, the switching-on/off control module 1013 is configured to, when the data type indicates that the acquired data is a switching-on/off instruction sent by the control protection device, control the circuit breaker body according to the acquired switching-on/off instruction to implement a switching-off operation or a switching-on operation.
Preferably, when the data type indicates that the acquired data is an opening/closing instruction sent by the control protection device, the opening/closing control module 1013 controls the circuit breaker body according to the acquired opening/closing instruction to implement an opening operation or a closing operation, including:
when the data obtained by the data type indication is a switching-on/off command sent by a control protection device, judging whether low pressure locking occurs at the moment according to the pressure state analysis module;
when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation;
when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
Preferably, the pressure state analyzing module 1014 is configured to perform a pressure low analysis according to the acquired pressure state information of the circuit breaker body when the data type indicates that the acquired data is the pressure state information of the circuit breaker body.
Preferably, when the data type indicates that the acquired data is the pressure state information of the circuit breaker body, the pressure state analysis module 1014 performs a pressure low analysis according to the acquired pressure state information of the circuit breaker body, including:
when the data obtained by the data type indication is pressure state information of the circuit breaker body, judging the pressure state information and obtaining a judgment result;
if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device;
and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
Preferably, the energy storage state analysis module 1015 is configured to perform energy storage startup, energy storage timeout and non-energy storage lockout closing analysis according to the acquired energy storage state information of the circuit breaker body when the data type indicates that the acquired data is the energy storage state information of the circuit breaker body.
Preferably, when the data obtained by the data type indication is the energy storage state information of the circuit breaker body, the energy storage state analysis module 1015 performs energy storage startup, energy storage timeout and non-energy storage blocking and closing analysis according to the obtained energy storage state information of the circuit breaker body, including:
when the data type indicates that the acquired data is the state information of the limit switch of the circuit breaker energy storage circuit, performing motor energy storage starting analysis according to the acquired state information of the limit switch of the circuit breaker energy storage circuit, and when determining that the motor energy storage starting occurs in the circuit breaker body, controlling the starting of an energy storage motor contactor outside the intelligent control device in a time sequence manner to realize the energy storage starting of the circuit breaker motor;
when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor;
and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
Preferably, the intelligent control device further comprises:
and the online monitoring module is used for acquiring pressure data, temperature data and local discharge data of the circuit breaker body and sending the pressure data, the temperature data and the local discharge data to an external monitoring background.
Fig. 2 is an exemplary diagram of a primary and secondary fusion breaker intelligent control system according to an embodiment of the invention. As shown in fig. 2, the intelligent control system for a primary and secondary fusion breaker according to an embodiment of the present invention includes: intelligent control device specifically includes: the device comprises an analysis and identification module, a switching-on and switching-off control module, a three-phase inconsistent protection module, a pressure state analysis module, an energy storage state analysis module, an online monitoring module and an anti-tripping control module. The control protection system realizes the opening and closing circuit breaker through the intelligent circuit breaker control device. The intelligent control device of the circuit breaker collects the pressure state of the circuit breaker and acts on warning when the pressure is low. The intelligent control device of the circuit breaker acquires the state of a limit switch of an energy storage circuit of the circuit breaker and controls the starting of an external contactor in a time sequence mode to act on the energy storage of the motor. The intelligent control device of the circuit breaker adopts an internal clock to time, and the starting of the contactor is removed when the time is out. The intelligent control device of the circuit breaker collects normally open and normally closed auxiliary nodes of the split-phase circuit breaker body, three phases are started in an inconsistent mode, and error judgment is prevented through device software logic. The intelligent control device of the circuit breaker acquires the state quantities of the circuit breaker, such as pressure, temperature and the like, and the state information is sent to an external online monitoring device through an optical cable or a cable. The intelligent control device of the circuit breaker can be fixed on the surface of the shell of the circuit breaker and can also be installed in a control collection cabinet. In the embodiment of the invention, the intelligent control device of the circuit breaker realizes the online monitoring function through the online monitoring function interface, and performs data transmission through an optical cable or an electric cable. The transmission of the alarm information between the intelligent control device of the circuit breaker and the control protection device is also carried out through an optical cable or an electric cable.
In addition, the functions except the intelligent control device of the circuit breaker are realized by the auxiliary circuit of the circuit breaker control. The circuit breaker control auxiliary loop is arranged in the control collection cabinet; the circuit breaker control auxiliary circuit comprises an inter-interval electrical locking hard circuit; the contact of the electric lock in the gap is connected in series in the tripping and closing loop of the auxiliary circuit of the circuit breaker; the cross-interval electrical interlocking is realized by the measurement and control device in an interval five-prevention interlocking logic.
Fig. 3 is a flowchart of main functions implemented by the intelligent control device according to the embodiment of the present invention. As shown in fig. 3, when the acquired data is the state of the limit switch of the energy storage circuit of the circuit breaker and the switch is in the state of energy storage, the energy storage is started, whether the state is overtime or not is judged, if the state is overtime, an alarm is given, and if the state is not overtime, the completion of the energy storage of the motor is displayed when the energy storage of the motor of the circuit breaker is completed.
When the three-phase inconsistency analysis is needed to be carried out according to the obtained position state of the circuit breaker, if the three-phase inconsistency problem exists, the three-phase inconsistency protection is started and timing is carried out, when the starting time reaches a first preset time threshold, a brake-separating operation command is sent to the circuit breaker body, and the circuit breaker body is controlled to realize brake-separating operation.
When the data acquired by the data type indication is a switching-on/off command sent by a control protection device, judging whether low pressure locking occurs at the moment through pressure state acquisition of the intelligent control device; when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation; when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment through energy storage state acquisition of the intelligent control device; when the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to achieve closing operation. When low-pressure locking or energy storage locking occurs, alarming is carried out, and first alarm information is sent to the control protection device.
Fig. 4 is a flowchart of a method 400 for intelligently controlling a primary and secondary convergence circuit breaker according to an embodiment of the invention. As shown in fig. 4, a method 400 for intelligent control of a primary and secondary fusion breaker according to an embodiment of the present invention starts from step 401, where an analysis and recognition module receives data through an electrical interface unit and/or a digital interface unit in step 401, and performs analysis and recognition processing on the received data to determine a data type of the received data.
In step 402, when the data type indicates that the acquired data is the position state information of the circuit breaker body, the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when it is determined that the three phases of the circuit breaker body are inconsistent, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to realize switching-off operation.
Preferably, the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when it is determined that the three-phase inconsistency occurs in the circuit breaker body, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to realize switching-off operation, and includes:
the obtained position state information of the circuit breaker body is compared with a preset three-phase inconsistency criterion, when the fact that the three phases of the circuit breaker body are inconsistent is confirmed, three-phase inconsistency protection is started and timing is conducted, when starting time reaches a first preset time threshold, a switching-off operation command is sent to the circuit breaker body, and the circuit breaker body is controlled to achieve switching-off operation.
In step 403, when the data obtained by the data type indication is a switching instruction sent by the control protection device, the switching control module controls the circuit breaker body to implement a switching operation or a switching operation according to the obtained switching instruction.
Preferably, when the data obtained by the data type indication is a switching-on/off command sent by the control protection device, the switching-on/off control module controls the circuit breaker body according to the obtained switching-on/off command to realize switching-on/off operation or switching-on operation, and includes:
when the data obtained by the data type indication is a switching-on/off command sent by a control protection device, judging whether low pressure locking occurs at the moment according to the pressure state analysis module;
when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation;
when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
In step 404, the pressure state analysis module performs a pressure low analysis according to the acquired pressure state information of the circuit breaker body when the data type indicates that the acquired data is the pressure state information of the circuit breaker body.
Preferably, when the data type indicates that the acquired data is pressure state information of the circuit breaker body, the pressure state analysis module performs pressure low analysis according to the acquired pressure state information of the circuit breaker body, and the pressure state analysis module includes:
when the data obtained by the data type indication is pressure state information of the circuit breaker body, judging the pressure state information and obtaining a judgment result;
if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device;
and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
In step 405, when the data obtained by the data type indication is the energy storage state information of the circuit breaker body, the energy storage state analysis module performs energy storage starting, energy storage overtime and non-energy storage blocking and closing analysis according to the obtained energy storage state information of the circuit breaker body.
Preferably, when the data obtained by the data type indication is the energy storage state information of the circuit breaker body, the energy storage state analysis module performs energy storage starting, energy storage overtime and non-energy storage blocking and closing analysis according to the obtained energy storage state information of the circuit breaker body, and includes:
when the data type indicates that the acquired data is the state information of the limit switch of the circuit breaker energy storage circuit, performing motor energy storage starting analysis according to the acquired state information of the limit switch of the circuit breaker energy storage circuit, and when determining that the motor energy storage starting occurs in the circuit breaker body, controlling the starting of an energy storage motor contactor outside the intelligent control device in a time sequence manner to realize the energy storage starting of the circuit breaker motor;
when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor;
and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
Preferably, wherein the method further comprises: the online monitoring module acquires pressure data, temperature data and local discharge data of the breaker body and sends the pressure data, the temperature data and the local discharge data to an external monitoring background.
The primary and secondary fusion breaker intelligent control method 400 according to the embodiment of the present invention corresponds to the primary and secondary fusion breaker intelligent control system 102 according to another embodiment of the present invention, and is not described herein again.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (12)
1. The utility model provides a secondary fuses circuit breaker intelligence control system which characterized in that, the system includes: intelligent control device, electric interface unit and digital interface unit, intelligent control device includes: an analysis and identification module, a switching-on and switching-off control module, a three-phase inconsistency protection module, a pressure state analysis module and an energy storage state analysis module,
the analysis and identification module is used for receiving data through the electrical interface unit and/or the digital interface unit and analyzing, identifying and processing the received data to determine the data type of the received data;
the three-phase inconsistency protection module is used for carrying out three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body when the data type indicates that the acquired data is the position state information of the circuit breaker body, and sending a switching-off operation command to the circuit breaker body when the three-phase inconsistency of the circuit breaker body is determined, so as to control the circuit breaker body to realize switching-off operation;
the switching-on/off control module is used for controlling the circuit breaker body to realize switching-on/off operation or switching-on operation according to the acquired switching-on/off instruction when the data acquired by the data type instruction is the switching-on/off instruction sent by the control protection device;
the pressure state analysis module is used for carrying out pressure low analysis according to the acquired pressure state information of the circuit breaker body when the data type indicates that the acquired data is the pressure state information of the circuit breaker body;
and the energy storage state analysis module is used for carrying out energy storage starting, energy storage overtime and non-energy storage locking and closing analysis according to the acquired energy storage state information of the circuit breaker body when the data acquired by the data type indication is the energy storage state information of the circuit breaker body.
2. The system of claim 1, wherein the three-phase inconsistency protection module is configured to compare the acquired position status information of the circuit breaker body with a preset three-phase inconsistency criterion, start and time the three-phase inconsistency protection when it is determined that the circuit breaker body has three-phase inconsistency, and send a switching-off operation command to the circuit breaker body when the start time reaches a first preset time threshold, so as to control the circuit breaker body to implement the switching-off operation.
3. The system according to claim 1, wherein the switching-on/off control module is configured to, when the data type indicates that the acquired data is a switching-on/off command sent by a control protection device, determine whether low pressure latch occurs at this time according to the pressure state analysis module; when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation; when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
4. The system of claim 1, wherein the pressure state analysis module is configured to determine the pressure state information and obtain a determination result when the data type indicates that the obtained data is pressure state information of a circuit breaker body; if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device; and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
5. The system according to claim 1, wherein the energy storage state analysis module is configured to, when the data type indicates that the acquired data is circuit breaker energy storage circuit limit switch state information, perform motor energy storage starting analysis according to the acquired circuit breaker energy storage circuit limit switch state information, and when it is determined that motor energy storage starting occurs in the circuit breaker body, control starting of an energy storage motor contactor outside the intelligent control device in a time sequence manner, so as to realize circuit breaker motor energy storage starting; when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor; and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
6. The system of claim 1, wherein the intelligent control device further comprises:
and the online monitoring module is used for acquiring pressure data, temperature data and local discharge data of the circuit breaker body and sending the pressure data, the temperature data and the local discharge data to an external monitoring background.
7. A primary and secondary fusion breaker intelligent control method is characterized by comprising the following steps:
the analysis and identification module receives data through the electrical interface unit and/or the digital interface unit and analyzes and identifies the received data to determine the data type of the received data;
when the data type indicates that the acquired data is the position state information of the circuit breaker body, the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the acquired position state information of the circuit breaker body, and when the three-phase inconsistency of the circuit breaker body is determined, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to realize switching-off operation;
when the data obtained by the data type indication is a switching-on and switching-off instruction sent by the control protection device, the switching-on and switching-off control module controls the circuit breaker body to realize switching-on and switching-off operation according to the obtained switching-on and switching-off instruction;
when the data obtained by the data type indication is the pressure state information of the circuit breaker body, the pressure state analysis module carries out pressure low analysis according to the obtained pressure state information of the circuit breaker body;
and the energy storage state analysis module performs energy storage starting, energy storage overtime and non-energy storage locking and closing analysis according to the acquired energy storage state information of the circuit breaker body when the data acquired by the data type indication is the energy storage state information of the circuit breaker body.
8. The method of claim 7, wherein the three-phase inconsistency protection module performs three-phase inconsistency analysis according to the obtained position status information of the circuit breaker body, and when it is determined that the three-phase inconsistency occurs in the circuit breaker body, sends a switching-off operation command to the circuit breaker body to control the circuit breaker body to implement switching-off operation, and the method comprises:
the obtained position state information of the circuit breaker body is compared with a preset three-phase inconsistency criterion, when the fact that the three phases of the circuit breaker body are inconsistent is confirmed, three-phase inconsistency protection is started and timing is conducted, when starting time reaches a first preset time threshold, a switching-off operation command is sent to the circuit breaker body, and the circuit breaker body is controlled to achieve switching-off operation.
9. The method according to claim 7, wherein the switching-on/off control module controls the circuit breaker body to realize switching-off operation or switching-on operation according to the obtained switching-on/off instruction when the data type indicates that the obtained data is a switching-on/off instruction sent by the control protection device, and the method includes:
when the data obtained by the data type indication is a switching-on/off command sent by a control protection device, judging whether low pressure locking occurs at the moment according to the pressure state analysis module;
when low-pressure locking does not occur and the acquired data is a switching-off command sent by the control protection device, sending a switching-off operation command to the circuit breaker body, and controlling the circuit breaker body to realize switching-off operation;
when low-pressure blocking does not occur and the acquired data is a switching-on command sent by a control protection device, judging whether energy storage blocking occurs at the moment according to the energy storage state analysis module; and if the energy storage locking does not occur, a closing operation command is sent to the breaker body, and the breaker body is controlled to realize closing operation.
10. The method of claim 7, wherein the pressure state analysis module performs a low pressure analysis according to the acquired pressure state information of the circuit breaker body when the data type indicates that the acquired data is the pressure state information of the circuit breaker body, and the method comprises:
when the data obtained by the data type indication is pressure state information of the circuit breaker body, judging the pressure state information and obtaining a judgment result;
if the judgment result indicates that the pressure state information is low pressure information, performing low pressure alarm display, and sending low pressure alarm information of the circuit breaker to a control protection device;
and if the judgment result indicates that the pressure state information is low-pressure locking information, the intelligent control device locks and closes and opens the brake.
11. The method according to claim 7, wherein the energy storage state analysis module performs energy storage start, energy storage timeout and non-energy storage lockout closing analysis according to the acquired energy storage state information of the breaker body when the data type indicates that the acquired data is the energy storage state information of the breaker body, and the method includes:
when the data type indicates that the acquired data is the state information of the limit switch of the circuit breaker energy storage circuit, performing motor energy storage starting analysis according to the acquired state information of the limit switch of the circuit breaker energy storage circuit, and when determining that the motor energy storage starting occurs in the circuit breaker body, controlling the starting of an energy storage motor contactor outside the intelligent control device in a time sequence manner to realize the energy storage starting of the circuit breaker motor;
when the energy storage of the motor of the circuit breaker is started, the intelligent controller performs timing, and when the timing time reaches a preset time threshold, the energy storage overtime protection acts to remove the starting of the contactor of the energy storage motor;
and when the data type indicates that the acquired data is the non-energy-storage locking information of the circuit breaker body, the intelligent control device locks and closes the circuit.
12. The method of claim 7, further comprising:
and the online monitoring module is used for acquiring pressure data, temperature data and local discharge data of the circuit breaker body and sending the pressure data, the temperature data and the local discharge data to an external monitoring background.
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| CN110829351B (en) | 2022-09-20 |
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