CN105759791B - Circuit breaker intelligent controller and the real-time detection method based on it - Google Patents
Circuit breaker intelligent controller and the real-time detection method based on it Download PDFInfo
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- CN105759791B CN105759791B CN201610263565.8A CN201610263565A CN105759791B CN 105759791 B CN105759791 B CN 105759791B CN 201610263565 A CN201610263565 A CN 201610263565A CN 105759791 B CN105759791 B CN 105759791B
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- circuit
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- control circuit
- intelligent controller
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
Abstract
The invention discloses a kind of circuit breaker intelligent controller and the real-time detection method based on it.Purpose is to realize staff during inspection, it is only necessary to uses the mode swiped the card, starts the self-checking function of intelligent controller.Simultaneously as being the fault condition simulated in supply line, therefore, it is possible to carry out detection from the beginning to the end to intelligent controller, reduce careless omission as far as possible so that testing result is taken advantage of in comprehensive.
Description
Technical field
The present invention relates to circuit breaker intelligent controller, more specifically, it relates to a kind of circuit breaker intelligent controller and base
In its real-time detection method.
Background technology
For low-voltage circuit breaker as one of important electric elements in distribution system, it is protection distribution network and work that it, which is acted on,
Damage of the industry equipment from failures such as short circuit, overload and ground connection.The detection of conventional circuit breaker and defencive function are more by electromagnetic component
Complete, its actuation time is long, protection precision is low, adjusts difficulty.With technological progress, its module is required for separate unit breaker
Change, intelligent and automation, can realize connected network communication, Centralized Monitoring etc. for the more breakers requirement in electric power system, i.e.,
So-called intelligent breaker $ intelligent breakers are the breakers for employing intelligent controller, it is mainly characterized by breaking in traditional
Fully using the new technology such as microelectronics, microcomputer monitoring, intelligent control and network service on the basis of the device of road, have higher reliable
Property.Several intelligent breakers can form intelligent power supply-distribution system by interactive network, have remote measurement, remote control, remote signalling and remote regulating
Deng four remote control function.
In actual use, it is necessary to be detected accordingly to intelligent controller, with determine if being capable of normal work
Make, avoid putting into after power grid, it is impossible to the trouble of normal use.Intelligent controller on the market at present, although having autodiagnosis
Disconnected function, but the function of the main circuit module of very small part can only be diagnosed, not comprehensively.
The content of the invention
In view of the deficienciess of the prior art, first purpose of the present invention is that online inspection can be realized by providing one kind
Survey, and detect more comprehensive circuit breaker intelligent controller.
To achieve the above object, the present invention provides following technical solution：
A kind of circuit breaker intelligent controller, including power circuit, Current Voltage detection circuit, analog signal processing circuit,
Logic control circuit, dropout execution circuit, keyboard, liquid crystal display and datel circuit；Wherein, the Current Voltage detection electricity
Road, analog signal processing circuit, logic control circuit, dropout execution circuit couple successively, the keyboard, liquid crystal display and data
Telecommunication circuit is coupled with logic control circuit；Further include：
First analog switch, is coupled between Current Voltage detection circuit and analog signal conditioner circuit；
Second analog switch, is coupled between logic control circuit and dropout execution circuit；
Analog control circuit, for sending a detection control signal to logic control circuit；And
Analog signal generative circuit, its output terminal are coupled to the output terminal and analog signal conditioner circuit of the first analog switch
Input terminal between；For the analog signal generative circuit in response to a switching signal, output or stopping output being capable of simulated failures
The analog current of operating mode；
Wherein, the logic control circuit controls first analog switch, second in response to the detection control signal
Analog switch is off-state or opening, and sends corresponding switching signal to analog signal generative circuit.
Further, the analog signal generative circuit includes：
DC/AC converters, its input terminal are coupled to the power circuit；
On-off circuit, has a controllable switch being coupled between AC/DC converters and power circuit, the on-off circuit
In response to the enabling signal and shutdown signal, the controllable switch turn-on and turn-off are controlled.
Further, the logic control circuit includes the MCU with AD conversion, and guards the gate with what MCU was coupled
Dog circuit, clock circuit, storage circuit；The analog signal processing circuit, dropout execution circuit, the first analog switch, second
Analog switch, on-off circuit and analog control circuit are coupled with MCU.
Further, the analog control circuit includes card reader.
Further, spare trip circuit is further included, the spare trip circuit includes：
Threshold sets module, for generating a setting value；
Instantaneous detection module, is coupled to analog signal processing circuit, for the inspection that will be exported from analog signal processing circuit
Signal is surveyed compared with setting value, and a comparison signal is exported according to comparative result；
Dropout analog module, in response to the comparison signal, corresponding dropout control signal is exported to dropout execution circuit.
Further, the instantaneous detection module uses comparator.
Further, the dropout analog module uses a/d converter.
Circuit breaker intelligent controller can be carried out in real time, comprehensively to examine it is another object of the present invention to provide one kind
Disconnected detection method.
To achieve the above object, the present invention provides following technical scheme：
A kind of real-time detection method of the circuit breaker intelligent controller based on such scheme, comprises the following steps：
S1. analog control circuit sends a detection control signal to logic control circuit；
S2. for logic control circuit in response to detecting control signal, it is disconnected to control the first analog switch and the second analog switch
Open state, and send open signal to analog signal generative circuit；
S3. analog signal generative circuit, being capable of simulated failure to analog signal processing circuit output in response to switching signal
The analog current of operating mode；
S4. logic control circuit judges analog current, and shows judging result by liquid crystal display；
S5. analog control circuit sends a detection control signal to logic control circuit again；
S6. logic control circuit sends shutdown signal in response to detecting control signal to analog signal generative circuit, and
It is opening to control the first analog switch and the second analog switch；
S7. analog signal generative circuit stops output analog current.
Further, in step S1, analog control circuit uses card reader.
Compared with prior art, it is an advantage of the invention that：Staff is during inspection, it is only necessary to the side to swipe the card
Formula, starts the self-checking function of intelligent controller.Simultaneously as be the fault condition simulated in supply line, accordingly, it is capable to
Enough detections carried out to intelligent controller from the beginning to the end, reduce careless omission so that testing result is taken advantage of in comprehensive as far as possible.
Brief description of the drawings
Fig. 1 is the circuit module figure of circuit breaker intelligent controller in the present invention；
Fig. 2 is the circuit module figure of analog signal generative circuit in the present invention.
Reference numeral：100th, voltage and current detection circuit, 200, logic processing circuit.
Embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are not
It is only limitted to this.
Embodiment one：
Circuit breaker intelligent controller as shown in Figure 1, Current Voltage detection circuit include hollow mutual inductor and mutual induction of voltage
Device, the electric current I and voltage U being respectively used in detection supply line；The electric current I and voltage U induced is input to the first simulation
Switch, analog signal processing circuit is input to via the first analog switch.
After analog signal processing circuit docks received electric current I and voltage U progress Isolation, enhanced processing, then input
To logic control circuit.
Logic control circuit includes multicircuit switch, the MCU with A/D conversions, storage circuit, watchdog circuit with timely
Clock circuit；Wherein, the input terminal of multicircuit switch is coupled to the output terminal of analog signal processing circuit, so as to receiving through place
Electric current I and voltage U after reason；Electric current I and voltage U is input to MCU through multicircuit switch, and the A/D modular converters of band will in MCU
Two kinds of analog signals are converted to digital signal, and logical operation is carried out for MCU.Clock circuit provides accurate clock frequency for MCU,
Watchdog circuit is used for the operating status for monitoring MCU, and avoiding it from causing whole controller to be constantly in because of program entanglement can not
The state of work；The action current of various error protections and the setting valve of time by keyboard to set up and are stored in storage circuit
（EEPROM）In, the current signal detected compared with setting valve, is judged whether to thread off by MCU, and exports corresponding control letter
Number, which passes through the second analog switch, is input to dropout execution circuit, to control dropout execution circuit to work.
First analog switch, the second analog switch and multicircuit switch, are switched, the control of three using 4 tunnels analogies
End processed is coupled to MCU, so as to by MCU control and on or off.
Analog control circuit, for sending a detection control signal to logic control circuit；In the present embodiment, simulation control
Circuit can use card reader.
With reference to Fig. 2, analog signal generative circuit includes DC/AC converters and on-off circuit：Wherein, DC/AC converters
Input terminal is coupled to power circuit, and the direct current that power circuit is exported, is converted to alternating current（Vp）, the alternating current is as mould
The detection electric current and detection voltage drawn up, input to analog signal processing circuit；On-off circuit, has one to be coupled to AC/DC and turns
Controllable switch between parallel operation and power circuit, on-off circuit are led in response to enabling signal and shutdown signal, control controllable switch
Logical and shut-off.The controllable switch can use triode Q1.
Therefore, the operation principle of the present embodiment is：Staff's brush IC card on card reader, card reader send one to MCU
A enabling signal, MCU controls the first analog switch afterwards and the second analog switch is off-state, and intelligent controller enters test
State；Meanwhile MCU sends open signal Vc to analog signal generative circuit（Low level）；Opening in analog signal generative circuit
Pipe shut-off is closed, the output voltage of power circuit, is input to DC/AC converters；DC/AC converters export alternating current to analog signal
Process circuit；After processing, MCU is delivered to via multicircuit switch, after logical process, MCU is by the results show in liquid crystal
On screen, if normally, staff brush IC card, the conducting of MCU controlling switches pipe, the stopping output of DC/AC converters, and control again
First analog switch and the second analog switch are opening, and intelligent controller recovers normal use.
Embodiment two：
The present embodiment makes improvements on the basis of embodiment one.It is also further with reference to Fig. 1, circuit breaker intelligent controller
Ground includes spare trip circuit, and spare trip circuit includes threshold sets module, instantaneous detection module and dropout analog module；
Wherein, threshold sets module, can use a reference value generative circuit, for generating a setting value；Instantaneous detection module use than
Compared with device, it is coupled to analog signal processing circuit, for the detection signal and setting value that will be exported from analog signal processing circuit
It is compared, and a comparison signal is exported according to comparative result；Dropout analog module uses a/d converter, in response to comparing letter
Number, export corresponding dropout control signal to dropout execution circuit.
Therefore, simulate dropout be a kind of spare buckle release mode, i.e., when fault-signal exceed regulation when, analog signals without
MCU is crossed, directly makes circuit breaker tripping, ensures breaker action message.
Embodiment three：
A kind of real-time detection method of the circuit breaker intelligent controller based on embodiment one, comprises the following steps：
S1. analog control circuit sends a detection control signal to logic control circuit；Analog control circuit can use
Card reader.
S2. for logic control circuit in response to detecting control signal, it is disconnected to control the first analog switch and the second analog switch
Open state, and send open signal to analog signal generative circuit；
S3. analog signal generative circuit, being capable of simulated failure to analog signal processing circuit output in response to switching signal
The analog current of operating mode；
S4. logic control circuit judges analog current, and shows judging result by liquid crystal display；
S5. analog control circuit sends a detection control signal to logic control circuit again；
S6. logic control circuit sends shutdown signal in response to detecting control signal to analog signal generative circuit, and
It is opening to control the first analog switch and the second analog switch；
S7. analog signal generative circuit stops output analog current.
The present embodiment is identical with the operation principle of embodiment two, and details are not described herein.
Claims (9)
1. a kind of circuit breaker intelligent controller, including power circuit, Current Voltage detection circuit, analog signal processing circuit, patrol
Collect control circuit, dropout execution circuit, keyboard, liquid crystal display and datel circuit；Wherein, the Current Voltage detection electricity
Road, analog signal processing circuit, logic control circuit, dropout execution circuit couple successively, the keyboard, liquid crystal display and data
Telecommunication circuit is coupled with logic control circuit；It is characterized in that further include：
First analog switch, is coupled between Current Voltage detection circuit and analog signal processing circuit；
Second analog switch, is coupled between logic control circuit and dropout execution circuit；
Analog control circuit, for sending a detection control signal to logic control circuit；And
Analog signal generative circuit, its output terminal be coupled to the first analog switch output terminal and analog signal processing circuit it is defeated
Enter between end；For the analog signal generative circuit in response to a switching signal, output or stopping output being capable of simulated failure operating modes
Analog current；
Wherein, the logic control circuit controls first analog switch, the second simulation in response to the detection control signal
Switch as off-state or opening, and corresponding switching signal is sent to analog signal generative circuit.
2. circuit breaker intelligent controller according to claim 1, it is characterized in that, the analog signal generative circuit includes：
DC/AC converters, its input terminal are coupled to the power circuit；
On-off circuit, has a controllable switch being coupled between DC/AC converters and power circuit, the on-off circuit response
In enabling signal and shutdown signal, the controllable switch turn-on and turn-off are controlled.
3. circuit breaker intelligent controller according to claim 2, it is characterized in that, the logic control circuit includes having AD
The MCU of conversion function, and watchdog circuit, clock circuit, storage circuit with MCU couplings；The analog signal processing electricity
Road, dropout execution circuit, the first analog switch, the second analog switch, on-off circuit and analog control circuit with MCU couplings
Connect.
4. circuit breaker intelligent controller according to claim 1, it is characterized in that, the analog control circuit includes swiping the card
Device.
5. circuit breaker intelligent controller device according to claim 1, it is characterized in that, spare trip circuit is further included, it is described
Spare trip circuit includes：
Threshold sets module, for generating a setting value；
Instantaneous detection module, is coupled to analog signal processing circuit, for the detection letter that will be exported from analog signal processing circuit
Number compared with setting value, and a comparison signal is exported according to comparative result；
Dropout analog module, in response to the comparison signal, corresponding dropout control signal is exported to dropout execution circuit.
6. circuit breaker intelligent controller according to claim 5, it is characterized in that, the instantaneous detection module, which uses, to be compared
Device.
7. circuit breaker intelligent controller according to claim 5, it is characterized in that, the dropout analog module uses AD conversion
Device.
8. a kind of real-time detection method of the circuit breaker intelligent controller based on described in claim 1, it is characterized in that, including it is following
Step：
S1. analog control circuit sends a detection control signal to logic control circuit；
S2. logic control circuit controls the first analog switch and the second analog switch to disconnect shape in response to detecting control signal
State, and send open signal to analog signal generative circuit；
S3. analog signal generative circuit, being capable of simulated failure operating mode to analog signal processing circuit output in response to switching signal
Analog current；
S4. logic control circuit judges analog current, and shows judging result by liquid crystal display；
S5. analog control circuit sends a detection control signal to logic control circuit again；
S6. logic control circuit sends shutdown signal, and control in response to detecting control signal to analog signal generative circuit
First analog switch and the second analog switch are opening；
S7. analog signal generative circuit stops output analog current.
9. real-time detection method according to claim 8, it is characterized in that, in step S1, analog control circuit is used and swiped the card
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263565.8A CN105759791B (en) | 2016-04-22 | 2016-04-22 | Circuit breaker intelligent controller and the real-time detection method based on it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263565.8A CN105759791B (en) | 2016-04-22 | 2016-04-22 | Circuit breaker intelligent controller and the real-time detection method based on it |
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| CN105759791A CN105759791A (en) | 2016-07-13 |
| CN105759791B true CN105759791B (en) | 2018-05-04 |
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| CN2720615Y (en) * | 2004-08-13 | 2005-08-24 | 陈耀生 | Intelligent electricity leakage breaker |
| CN201374549Y (en) * | 2009-03-12 | 2009-12-30 | 颜福随 | Intelligent residual current circuit breaker |
| CN201615939U (en) * | 2009-03-17 | 2010-10-27 | 北京Abb高压开关设备有限公司 | Circuit breaker testing equipment and control system thereof |
| CN201435620Y (en) * | 2009-06-29 | 2010-03-31 | 西安兴汇电力科技有限公司 | Electric energy monitoring and operation management system of high voltage user |
| US8280670B2 (en) * | 2009-10-20 | 2012-10-02 | General Electric Company | Method and apparatus for detecting failure of an actuator switching device |
| CN201946539U (en) * | 2010-11-12 | 2011-08-24 | 黄家兴 | Intelligent circuit breaker signal transceiving device |
| CN202019191U (en) * | 2011-05-13 | 2011-10-26 | 黄武杰 | Electric arc fault circuit breaker |
| CN102520265A (en) * | 2011-09-28 | 2012-06-27 | 福建俊豪电子有限公司 | Electrical equipment fault monitoring device |
| CN103208776A (en) * | 2013-01-23 | 2013-07-17 | 陈泽 | Breaker circuit with fault self-detection function |
| KR101476685B1 (en) * | 2013-06-03 | 2014-12-26 | 엘에스산전 주식회사 | Detecting circuit for circuit breaker |
| JP6173118B2 (en) * | 2013-08-22 | 2017-08-02 | 三菱電機株式会社 | Earth leakage breaker |
| CN104635149B (en) * | 2013-11-08 | 2017-09-05 | 上海电科电器科技有限公司 | The selftest module of electronic breaker |
| CN103560496A (en) * | 2013-11-08 | 2014-02-05 | 宁夏天地经纬电力设备工程有限公司 | Control system of intelligent circuit breaker |
| US10001526B2 (en) * | 2014-10-17 | 2018-06-19 | Eaton Intelligent Power Limited | Self-testing ground fault circuit interrupter |
| CN204705840U (en) * | 2014-12-01 | 2015-10-14 | 国网山东省电力公司东营供电公司 | A kind of low-voltage circuit breaker control device automatically |
| CN204559090U (en) * | 2015-04-10 | 2015-08-12 | 厦门宏发开关设备有限公司 | A kind of small-size multifunction intelligent breaker |
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- 2016-04-22 CN CN201610263565.8A patent/CN105759791B/en active Active
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