CN109347073A - A kind of intelligence is operated a switch contactor and its control method - Google Patents
A kind of intelligence is operated a switch contactor and its control method Download PDFInfo
- Publication number
- CN109347073A CN109347073A CN201811189417.1A CN201811189417A CN109347073A CN 109347073 A CN109347073 A CN 109347073A CN 201811189417 A CN201811189417 A CN 201811189417A CN 109347073 A CN109347073 A CN 109347073A
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- Prior art keywords
- module
- switch
- operating
- main control
- control module
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Classifications
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
It operates a switch contactor and its control method, including power module, acquisition module, MCU main control module and module of operating a switch the present invention provides a kind of intelligence；Power module, for providing operating voltage to module of operating a switch, main control module；Acquisition module, for acquiring line voltage distribution；Main control module, for calculating the collected voltage of acquisition module；It operates a switch module, for operation of operating a switch.The present invention can gathering line road in real time voltage condition, if outside need triggering is operated a switch function, high-frequency is detected whether in dead-center position, it detects for the first time in zero point, it operates a switch with regard to operating module of operating a switch, substantially increases the service life of product, improve security performance.
Description
Technical field
It operates a switch contactor the present invention relates to electric field more particularly to a kind of intelligence.
Background technique
With popularizing for electric power, user is also higher and higher to the intelligent requirements of electric power.Intelligent contactor is electric system
In an indispensable important component, however, traditional brake-pulling device, arbitrarily operates a switch, especially in crest voltage
It is also easy to produce strong electric arc when operating a switch, easily feeler is destroyed and reduces product service life, has seriously threatened residential electricity consumption safety.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to which providing one kind can prejudge before operating a switch
It operates a switch again after dead-center position, the service life for substantially increasing product is intelligently operated a switch contactor and its control method.
In order to achieve the above object of the invention, the present invention is such completion: a kind of intelligence is operated a switch contactor, and AC is used for
The single-phase household electrical environment of 220V, it is characterised in that including power module, acquisition module, module of operating a switch and MCU main control module, power supply
Module connects MCU main control module, and MCU main control module connects operate a switch module and acquisition module；
The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, is changed into AC 220V by ACDC circuit
DC 12V powers to relay in module of operating a switch, and then turns DC 3.3V circuit for 12V power conversion DC 5v by DC 12V,
3.3V is converted to by 5V again to power to the chip in main control module；
The acquisition module includes mutual inductor circuit, and the alternating current of 220V is passed through mutual induction of voltage for voltage value scaled down
In the range detectable to the ADC pin of MCU main control module, the ADC pin of MCU main control module is connected；
The MCU main control module is with 72MHz full speed running, collection voltages V information；
Module of operating a switch is operated a switch.
Preferably, MCU main control module enhances cake core using STM32F103C8T6.
ACDC circuit and DC 12V in above-mentioned power module turn DC 3.3V circuit and belong to the prior art, Gu circuit
Composition is no longer repeated, and MCU main control module is also the micro-control unit of the prior art, also known as one chip microcomputer.
Purpose to realize the present invention provides a kind of intelligence and operates a switch contactor control method, it is characterised in that including following
Step: firstly, line voltage distribution is dropped to MCU master control in the case where normal power supply, using the mutual inductor of acquisition module by equipment
In the detectable range of the ADC pin of module；
When external or inside is operated a switch, MCU main control module detects ADC pin voltage, passes through in house software algorithm
Voltage V, detection time t, define k=V/t. as V=0, k=0 is zero crossing at this time, high-frequency acquires the value of k, when k=
Signal is issued to module of operating a switch when 0-0.01V/S, module of operating a switch implements operation of operating a switch.
Beneficial effects of the present invention: compared with traditional technology, the present invention has the advantage that
1, the present invention can in real time gathering line road voltage condition, when line electrical leakage, short circuit, need carry out operate a switch
Come when protecting circuit safety, this equipment can detect whether to detect for the first time in zero point in dead-center position with high-frequency circuit,
It operates a switch with regard to operating module of operating a switch, substantially increases the service life of product, improve security performance.
Detailed description of the invention
Fig. 1 is the structural block diagram of embodiment 1.
Fig. 2 is the circuit diagram of MCU main control module part.
Fig. 3 is the ACDC circuit diagram of power module.
Fig. 4 is that the DC 12V of power module turns DC 3.3V circuit diagram.
Fig. 5 is the circuit diagram of module of operating a switch.
Fig. 6 is the circuit diagram of acquisition module.
Specific embodiment
Embodiment 1: the contactor as shown in Figure 1, a kind of intelligence is operated a switch is used for the single-phase household electrical environment of AC 220V, feature
It is to include power module, acquisition module, module of operating a switch and MCU main control module, power module connects MCU main control module, MCU master
Control module connects operate a switch module and acquisition module；
The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, is changed into AC 220V by ACDC circuit
DC 12V powers to relay in module of operating a switch, and then turns DC 3.3V circuit for 12V power conversion DC 5v by DC 12V,
3.3V is converted to by 5V again to power to the chip in MCU main control module；
The acquisition module includes mutual inductor circuit, and the alternating current of 220V is passed through mutual induction of voltage for voltage value scaled down
In the range detectable to the ADC pin of MCU main control module, the ADC pin of MCU main control module is connected；
The MCU main control module is with 72MHz full speed running, collection voltages V information；
Module of operating a switch is operated a switch.
Embodiment 2: when line electrical leakage, short circuit, need to carry out circuit of operating a switch come when protecting circuit safety, the intelligence
The alternating current of 220V is converted into the relay that direct current supplies electricity to operate a switch in module by the ACDC circuit of power module in contactor of capable of operating a switch
Gas power supply, is converted into 3.3V direct current for the alternating current of 220V and supplies electricity to chip in MCU main control module powering, can also be with power module
The alternating current of 220V is converted into the relay power supply that 12V DC supplies electricity to operate a switch in module, then 12V DC electricity is converted into 3.3V
Direct current supplies electricity to the power supply of the chip in main control module, and the chip in main control module is that STM32F103C8T6 enhances cake core.Acquire mould
Line voltage distribution will be dropped to ADC after voltage value scaled down by mutual induction of voltage using mutual inductor by the alternating current of 220V by block
In the detectable range of pin, collection voltages V information；MCU main control module is calculated by collected voltage V, when calculating
Detection time is t, and k=V/t, high-frequency acquires K value, as k=0-0.01V/S to module sending signal of operating a switch, module of operating a switch
Implement operation of operating a switch.
Embodiment 3: in view of module of operating a switch has movement to postpone, due to being the alternating current of 50hz, the period is 20ms, so choosing
Take operate a switch module complete once operate a switch operation time be 20Nms, N be 1 to 10 natural number, detect exchange zero point after,
The equipment for module of operating a switch is completed just operate a switch in dead-center position when once-through operation timing node, substantially increases product
Service life；The time that module of operating a switch completes primary operation of operating a switch is preferably 40ms, after detecting exchange zero point, two weeks
It can just operate a switch when the node of phase.
Claims (3)
- The contactor 1. a kind of intelligence is operated a switch is used for the single-phase household electrical environment of AC 220V, it is characterised in that including power module, adopt Collect module, module of operating a switch and MCU main control module, power module connects MCU main control module, and MCU main control module connects module of operating a switch And acquisition module；The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, is changed into AC 220V by ACDC circuit DC 12V powers to relay in module of operating a switch, and then turns DC 3.3V circuit for 12V power conversion DC 5v by DC 12V, 3.3V is converted to by 5V again to power to the chip in MCU main control module；The acquisition module includes mutual inductor circuit, and the alternating current of 220V is passed through mutual induction of voltage for voltage value scaled down In the range detectable to the ADC pin of MCU main control module, the ADC pin of MCU main control module is connected；The MCU main control module is with 72MHz full speed running, collection voltages V information；Module of operating a switch is operated a switch.
- The contactor 2. a kind of intelligence according to claim 1 is operated a switch, it is characterised in that MCU main control module uses STM32F103C8T6 enhances cake core.
- The contactor control method 3. a kind of intelligence as described in one of claims 1 or 2 is operated a switch, it is characterised in that including following step It is rapid: firstly, line voltage distribution is dropped to MCU master control mould in the case where normal power supply, using the mutual inductor of acquisition module by equipment In the detectable range of the ADC pin of block；When external or inside is operated a switch, MCU main control module detects ADC pin voltage, passes through in house software algorithm Voltage V, detection time t, define k=V/t. as V=0, k=0 is zero crossing at this time, high-frequency acquires the value of k, when k= Signal is issued to module of operating a switch when 0-0.01V/S, module of operating a switch implements operation of operating a switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189417.1A CN109347073A (en) | 2018-10-12 | 2018-10-12 | A kind of intelligence is operated a switch contactor and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189417.1A CN109347073A (en) | 2018-10-12 | 2018-10-12 | A kind of intelligence is operated a switch contactor and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109347073A true CN109347073A (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811189417.1A Pending CN109347073A (en) | 2018-10-12 | 2018-10-12 | A kind of intelligence is operated a switch contactor and its control method |
Country Status (1)
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| CN (1) | CN109347073A (en) |
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| CN105632840A (en) * | 2016-01-07 | 2016-06-01 | 温州大学 | Switch-off phase control based intelligent alternating current contactor and operating method therefor |
| CN207895024U (en) * | 2017-12-29 | 2018-09-21 | 江苏亚开电气有限公司 | A kind of medium voltage distribution network fault fast positioning device |
| CN108572669A (en) * | 2018-05-29 | 2018-09-25 | 中土智能科技(广州)有限公司 | A kind of water pump intelligent controller |
| CN208923821U (en) * | 2018-10-12 | 2019-05-31 | 无锡圣普电力科技有限公司 | A kind of intelligence is operated a switch contactor |
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2018
- 2018-10-12 CN CN201811189417.1A patent/CN109347073A/en active Pending
Patent Citations (15)
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| KR200403819Y1 (en) * | 2005-09-30 | 2005-12-14 | 이종복 | Power Control Circuit for Power Saving Mode |
| CN201146297Y (en) * | 2008-01-09 | 2008-11-05 | 黄建新 | Energy-saving power socket capable of closing down intelligently |
| US20110218748A1 (en) * | 2008-11-20 | 2011-09-08 | Yue Wang | Apparatus for Monitoring Battery Voltage and Temperature |
| CN101567550A (en) * | 2009-06-09 | 2009-10-28 | 西安科技大学 | Low-pressure single-phase alternating current leakage protector |
| CN202929398U (en) * | 2013-01-15 | 2013-05-08 | 朱秀龙 | Switching power supply intelligent controller |
| CN203839955U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch with communication module |
| CN203839956U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional encoder |
| CN104007688A (en) * | 2014-06-05 | 2014-08-27 | 武汉市农业机械化科学研究所 | Greenhouse actuator controller |
| CN204012006U (en) * | 2014-08-13 | 2014-12-10 | 杭州快恒科技有限公司 | A kind of USB interface smart jack with pressurizer |
| CN204330875U (en) * | 2014-12-27 | 2015-05-13 | 陕西鑫盾科技有限公司 | A kind of over-voltage monitoring instrument |
| CN204992521U (en) * | 2015-09-10 | 2016-01-20 | 威胜集团有限公司 | Electric energy meter that single -phase electric energy meter operated a switch control circuit and made with this circuit |
| CN105632840A (en) * | 2016-01-07 | 2016-06-01 | 温州大学 | Switch-off phase control based intelligent alternating current contactor and operating method therefor |
| CN207895024U (en) * | 2017-12-29 | 2018-09-21 | 江苏亚开电气有限公司 | A kind of medium voltage distribution network fault fast positioning device |
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