CN111769535A - Intelligent protection automatic phase separation controller based on wireless network - Google Patents
Intelligent protection automatic phase separation controller based on wireless network Download PDFInfo
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- CN111769535A CN111769535A CN202010708840.9A CN202010708840A CN111769535A CN 111769535 A CN111769535 A CN 111769535A CN 202010708840 A CN202010708840 A CN 202010708840A CN 111769535 A CN111769535 A CN 111769535A
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- module
- phase sequence
- controller
- relay
- optical coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/004—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect phase sequence; with switching for obtaining correct phase sequence
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/001—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect or interrupted earth connection
Abstract
The invention particularly relates to an intelligent protection automatic phase-splitting controller based on a wireless network, which comprises an AC-DC power supply module, a controller, an optical coupling module, a phase sequence detection module and a phase sequence adjustment module, wherein the optical coupling module is used for monitoring the voltage between any two lines of fire, ground and zero and the circuit direction and outputting the voltage and the circuit direction to the phase sequence detection module, the phase sequence detection module judges the phase sequence of fire, ground and zero according to the information output by the optical coupling module and outputs the phase sequence to the controller, and the controller outputs a control signal to the phase sequence adjustment module to execute phase sequence adjustment. The phase sequence detection module can reliably detect the phase sequence of any two lines among fire, ground and zero three lines, avoids the occurrence of electric shock accidents of personnel caused by equipment due to the fact that the ground line is electrified due to the fact that the ground line is connected with the phase line in a wrong way, and has the advantages of strong universality, high safety, convenience in management, flexibility in use and the like; and the optical coupling isolation device is adopted, so that the device is safe and stable, is not interfered by the outside, and simultaneously ensures that the detection control circuit is isolated from alternating current to ensure that the control module is prevented from high-voltage impact.
Description
Technical Field
The invention relates to the technical field of intelligent circuit protection, in particular to an intelligent protection automatic phase separation controller based on a wireless network.
Background
An intelligent safety socket is a safety socket with a brand new concept. The series products are a novel intelligent safety socket integrating a Programmable Logic Controller (PLC) automatic control safety energy-saving converter and an electric appliance intelligent standby power-saving socket. The main functions of the intelligent socket are power saving and safety. The intelligent IC chip is embedded into the socket to automatically detect the current change on line, so that the standby automatic power-off of the electric appliance is realized, and the problem of standby energy consumption is solved. The intelligent socket adopts an infrared induction mode to turn on the power supply, does not change the original habit of using electrical appliances, is more convenient to use and really saves electricity. And the functions of lightning protection, high voltage protection, short circuit protection and overload protection are arranged in the safety box, so that the safety is really realized. The intelligent socket series socket can automatically detect the current change of an electric appliance so as to cut off the power, thoroughly eliminate the problem of standby energy consumption, save energy, reduce emission and protect environment.
At present, common intelligent sockets are provided with a plurality of functions, one is that the socket and the networking function are integrated, the control can be realized through a network, the other is that the socket has a plurality of protection functions, for example, the socket has the functions of leakage protection, overload protection, leakage test and the like, the general functions of the sockets are single, the phase sequence adjustment function cannot be carried out, and the socket is difficult to be applied to occasions with higher requirements on the phase sequence.
Disclosure of Invention
The invention aims to provide an intelligent protection automatic phase separation controller based on a wireless network, which can perform the functions of automatic phase sequence detection and adjustment.
In order to realize the purpose, the invention adopts the technical scheme that: an intelligent protection automatic phase-splitting controller based on a wireless network comprises an AC-DC power supply module, a controller, an optical coupling module, a phase sequence detection module and a phase sequence adjustment module, wherein the optical coupling module is used for monitoring voltage and circuit direction between any two lines of fire, ground and zero and outputting the voltage and the circuit direction to the phase sequence detection module, the phase sequence detection module judges phase sequences of fire, ground and zero according to information output by the optical coupling module and outputs the phase sequences to the controller, the controller outputs a control signal to the phase sequence adjustment module to perform phase sequence adjustment, and the AC-DC power supply module supplies power to other modules.
Compared with the prior art, the invention has the following technical effects: by arranging the phase sequence detection module, the phase sequence of any two lines among fire, ground and zero three lines can be reliably detected, the occurrence of electric shock accidents of personnel caused by equipment due to the fact that the ground line is electrified due to the fact that the ground line is connected with the phase line in a wrong mode is avoided, and the phase sequence detection module has the advantages of being strong in universality, high in safety, convenient to manage, flexible to use and the like; and the optical coupling isolation device is adopted, so that the device is safe and stable, is not interfered by the outside, and simultaneously ensures that the detection control circuit is isolated from alternating current to ensure that the control module is prevented from high-voltage impact.
Drawings
FIG. 1 is a control logic diagram of the present invention;
fig. 2 is a control schematic of the present invention.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 to 2.
Referring to fig. 1 and 2, an intelligent protection automatic phase-splitting controller based on a wireless network includes an AC-DC power module 100, a controller 200, an optocoupler module 400, a phase sequence detection module 500, and a phase sequence adjustment module 600, where the optocoupler module 400 is used to monitor voltage and circuit direction between any two lines of fire, ground, and zero and output the voltage and circuit direction to the phase sequence detection module 500, the phase sequence detection module 500 determines a phase sequence of fire, ground, and zero according to information output by the optocoupler module 400 and outputs the phase sequence to the controller 200, the controller 200 outputs a control signal to the phase sequence adjustment module 600 to perform phase sequence adjustment, and the AC-DC power module 100 supplies power to other modules. By arranging the phase sequence detection module 500, the phase sequence of any two lines among a fire line, a ground line and a zero line can be reliably detected, the occurrence of electric shock accidents of personnel caused by equipment due to the fact that the ground line is electrified due to the fact that the ground line is connected with a phase line in a wrong way is avoided, and the phase sequence detection module has the advantages of being strong in universality, high in safety, convenient to manage, flexible to use and the like; and the optical coupling isolation device is adopted, so that the device is safe and stable, is not interfered by the outside, and simultaneously ensures that the detection control circuit is isolated from alternating current to ensure that the control module is prevented from high-voltage impact. The intelligent power supply real-training device is mainly applied to the comprehensive management of real-training equipment personnel safety protection, equipment power intelligent detection and informatization real-training centers in the fields of electrician electronics, intelligent manufacturing, industrial robots, new energy automobiles and intelligent networked automobile maintenance and teaching.
Further, the optical coupling module 400 is provided with six: the input end of first opto-coupler module is just, the ground wire is connected respectively to the negative pole, the live wire, the input end of second opto-coupler module is just, the zero line is connected respectively to the negative pole, the live wire, the input end of third opto-coupler module is just, zero line, ground wire are connected respectively to the negative pole, the input end of fourth opto-coupler module is just, the live wire is connected respectively to the negative pole, the ground wire, the input end of fifth opto-coupler module is just, zero line, the live wire is connected respectively to the negative pole, the input end of sixth opto-coupler module is just, zero line. Set up six opto-coupler module 400, realization live wire that can be convenient. The voltage and current direction between any two wires between the ground wire and the zero wire directly send the voltage and current direction signals to the phase sequence detection module 500, thereby judging the phase sequence of fire, ground and zero.
Further, the phase sequence adjusting module 600 includes a first dual-pole relay K2, a second dual-pole relay K3, and a relay driving and monitoring circuit 601; the positive electrode and the negative electrode of the input end of the first double-pole relay K2 are respectively connected with a live wire and a zero wire, the positive electrode and the negative electrode of the input end of the second double-pole relay K3 are respectively connected with a zero wire and a live wire, and the positive electrode and the negative electrode of the output ends of the first double-pole relay K2 and the second double-pole relay K3 are both connected with a loaded live wire and a loaded zero wire; the relay driving and monitoring circuit 601 receives an output command of the controller 200 and controls the coils of the first double-pole relay K2 and the second double-pole relay K3 to be electrified or deenergized, and the relay driving and monitoring circuit 601 is also used for monitoring the closed states of the first double-pole relay K2 and the second double-pole relay K3 and feeding back the closed states to the controller 200. When a phase sequence error occurs, the phase sequence can be adjusted by changing the states of the first double-pole relay K2 and the second double-pole relay K3, and it should be noted that only one of the two double-pole relays can be switched on at any time.
Further, the leakage and overload detection module comprises a leakage and overload detection module 300 and a circuit breaking relay K1, wherein the input end of a circuit breaking relay K1 is connected with a mains supply, the output end of a circuit breaking relay K1 is connected with a load, and the positive and negative input ends of six optical coupling modules 400 are connected with the output end of a circuit breaking relay K1; the leakage and overload detecting module 300 includes a current detector 301 and a grounded-neutral detector 302 disposed between the utility power and the cut-off relay K1, the current detector 301 and the grounded-neutral detector 302 respectively detect the current on the live wire and the neutral wire, and the leakage and overload detecting module 300 controls the cut-off relay K1 to be turned on or off according to the detected current information. The circuit breaking relay K1 is used for protecting personnel and equipment safety when performing electric leakage and overload protection. The leakage and overload detection module 300 has two functions: firstly, monitoring the electric leakage state of a load end at any time; and secondly, monitoring overload operation of equipment at all times and timely carrying out power-off protection. These two functions are very sophisticated circuit designs, and therefore this part of the invention is not elaborated on in detail.
Further, the leakage and overload detection module 300 includes a chip FM2145 and a rectifier bridge; one output end of the current detector 301 is connected to pin 1 of the chip FM2145 through a capacitor C3, and the other output end is directly connected to pin 2 of the chip FM 2145; pin 4 of the chip FM2145 is connected to the controller 200; one of the output terminals of the grounded neutral line detector 302 is connected to pin 5 of the chip FM2145 through a capacitor C2, and a capacitor C1 is connected in parallel between the two output terminals; a pin 6 of the chip FM2145 is connected with a pin 8 through a resistor R3 and a rectifier bridge in sequence, the other two ends of the rectifier bridge are respectively connected with a neutral wire and one end of a coil of a breaking relay K1, and the other end of the coil of the breaking relay K1 is connected with a live wire; a branch is led out between the resistor R3 and the rectifier bridge and is connected with a pin 8 of a chip F2145 through a capacitor C4; the pin 7 of the chip FM2145, one end of the capacitor C5 and the control stage of the one-way thyristor Q1 are communicated, a branch is led out between the cut-off relay K1 and the rectifier bridge and is communicated with the anode of the one-way thyristor Q1 and one end of the capacitor C6, and the other ends of the capacitors C5 and C6 and the cathode of the one-way thyristor Q1 are connected with the pin 8 of the chip FM 2145. The leakage and overload detection module 300 composed of the chip FM2145 and the rectifier bridge is very convenient and reliable to apply.
Further, the controller comprises a WiFi module 700, the AC-DC power module 100 supplies power to the WiFi module 700, the WiFi module 700 is connected to the controller 200, the WiFi module 700 receives the working state of each module output by the controller 200 and uploads the working state to the network, and the WiFi module 700 is further configured to receive a control instruction sent by the network and output the control instruction to the controller 200; the WiFi module 700 includes an external antenna 701. The WiFi module 700 is mainly used to facilitate networking of the whole device, so as to facilitate uploading data and receiving remote control commands, and the antenna 701 is arranged to enhance network signals.
Further, the wireless state monitoring device further comprises a state display 800, wherein the state display 800 is composed of two three-color indicator lamps, the first three-color indicator lamp is connected with the controller 200 and used for indicating a wireless state, and in the three-color indicator lamps, red represents that a network is disconnected, blue represents a single machine, and green represents that the network is normal; the second three-color indicator is connected to the phase sequence detection module 500 for indicating the phase sequence status, wherein red indicates leakage, blue indicates lack of ground, and green indicates normal. After the state display 800 is arranged, workers on site can know the working state of the equipment in time conveniently, so that danger is avoided during operation.
And furthermore, the leakage testing module comprises a piezoresistor, a testing resistor and a testing button which are sequentially connected in series between the live wire of the commercial power and the live wire of the load, and a branch circuit led out between the piezoresistor and the testing resistor is connected with the neutral wire of the commercial power. The arrangement of the electric leakage test module facilitates the operation personnel to periodically perform the electric leakage protection performance test so as to check whether the electric leakage protection performance is good or not.
Claims (8)
1. The utility model provides an automatic phase separation controller of intelligent protection based on wireless network which characterized in that: the phase sequence adjusting device comprises an AC-DC power supply module (100), a controller (200), an optical coupling module (400), a phase sequence detecting module (500) and a phase sequence adjusting module (600), wherein the optical coupling module (400) is used for monitoring voltage and circuit direction between any two lines of fire, ground and zero and outputting the voltage and the circuit direction to the phase sequence detecting module (500), the phase sequence detecting module (500) judges the phase sequence of fire, ground and zero according to information output by the optical coupling module (400) and outputs the phase sequence to the controller (200), the controller (200) outputs a control signal to the phase sequence adjusting module (600) to execute phase sequence adjustment, and the AC-DC power supply module (100) supplies power to other modules.
2. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 1, wherein: the optical coupling module (400) is provided with six:
the positive electrode and the negative electrode of the input end of the first optical coupling module are respectively connected with a ground wire and a live wire,
the positive electrode and the negative electrode of the input end of the second optical coupling module are respectively connected with a zero line and a live wire,
the positive pole and the negative pole of the input end of the third optical coupling module are respectively connected with a zero line and a ground wire,
the positive electrode and the negative electrode of the input end of the fourth optocoupler module are respectively connected with a live wire and a ground wire,
the positive electrode and the negative electrode of the input end of the fifth optical coupling module are respectively connected with a zero line and a live wire,
and the positive electrode and the negative electrode of the input end of the sixth optocoupler module are respectively connected with a zero line and a ground wire.
3. The wireless network based intelligent protection automatic phase separation controller of claim 2, wherein: the phase sequence adjusting module (600) comprises a first double-pole relay K2, a second double-pole relay K3 and a relay driving and monitoring circuit (601); the positive electrode and the negative electrode of the input end of the first double-pole relay K2 are respectively connected with a live wire and a zero wire, the positive electrode and the negative electrode of the input end of the second double-pole relay K3 are respectively connected with a zero wire and a live wire, and the positive electrode and the negative electrode of the output ends of the first double-pole relay K2 and the second double-pole relay K3 are both connected with a loaded live wire and a loaded zero wire; the relay driving and monitoring circuit (601) receives an output command of the controller (200) and controls the coils of the first double-pole relay K2 and the second double-pole relay K3 to be electrified or deenergized, and the relay driving and monitoring circuit (601) is also used for monitoring the closed states of the first double-pole relay K2 and the second double-pole relay K3 and feeding back the closed states to the controller (200).
4. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 3, wherein: the intelligent power supply circuit comprises a leakage and overload detection module (300) and a circuit breaking relay K1, wherein the input end of a circuit breaking relay K1 is connected with a mains supply, the output end of a circuit breaking relay K1 is connected with a load, and the positive and negative input ends of six optical coupling modules (400) are connected with the output end of a circuit breaking relay K1; the leakage and overload detection module (300) comprises a current detector (301) and a grounded neutral line detector (302) which are arranged between a mains supply and the circuit breaking relay K1, wherein the current detector (301) and the grounded neutral line detector (302) respectively detect currents on a live wire and a neutral wire, and the leakage and overload detection module (300) controls the circuit breaking relay K1 to be closed or opened according to detected current information.
5. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 4, wherein: the leakage and overload detection module (300) comprises a chip FM2145 and a rectifier bridge; one output end of the current detector (301) is connected with a pin 1 of the chip FM2145 through a capacitor C3, and the other output end is directly connected with a pin 2 of the chip FM 2145; pin 4 of the chip FM2145 is connected with the controller (200); one output end of the grounded neutral line detector (302) is connected with a pin 5 of a chip FM2145 through a capacitor C2, and a capacitor C1 is connected between the two output ends in parallel; a pin 6 of the chip FM2145 is connected with a pin 8 through a resistor R3 and a rectifier bridge in sequence, the other two ends of the rectifier bridge are respectively connected with a neutral wire and one end of a coil of a breaking relay K1, and the other end of the coil of the breaking relay K1 is connected with a live wire; a branch is led out between the resistor R3 and the rectifier bridge and is connected with a pin 8 of a chip F2145 through a capacitor C4; the pin 7 of the chip FM2145, one end of the capacitor C5 and the control stage of the one-way thyristor Q1 are communicated, a branch is led out between the cut-off relay K1 and the rectifier bridge and is communicated with the anode of the one-way thyristor Q1 and one end of the capacitor C6, and the other ends of the capacitors C5 and C6 and the cathode of the one-way thyristor Q1 are connected with the pin 8 of the chip FM 2145.
6. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 5, wherein: the intelligent power supply system comprises a WiFi module (700), wherein an AC-DC power supply module (100) supplies power to the WiFi module (700), the WiFi module (700) is connected with a controller (200), the WiFi module (700) receives working states of the modules output by the controller (200) and uploads the working states to a network, and the WiFi module (700) is further used for receiving a control instruction sent by the network and outputting the control instruction to the controller (200); the WiFi module (700) includes an external antenna (701).
7. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 6, wherein: including status display (800), status display (800) comprise two tristimulus designation lamps, and first tristimulus designation lamp links to each other with controller (200) and is used for instructing wireless state, and second tristimulus designation lamp links to each other with phase sequence detection module (500) and is used for instructing the phase sequence state.
8. The wireless-network-based intelligent protection automatic phase-splitting controller as recited in claim 7, wherein: the electric leakage testing module comprises a piezoresistor, a testing resistor and a testing button which are sequentially connected in series between a live wire of a mains supply and a live wire of a load, wherein a branch is led out between the piezoresistor and the testing resistor and connected with a neutral wire of the mains supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010708840.9A CN111769535A (en) | 2020-07-22 | 2020-07-22 | Intelligent protection automatic phase separation controller based on wireless network |
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| CN202010708840.9A CN111769535A (en) | 2020-07-22 | 2020-07-22 | Intelligent protection automatic phase separation controller based on wireless network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566956A (en) * | 2022-03-08 | 2022-05-31 | 珠海格力电器股份有限公司 | Zero-live line adjusting circuit and method and air conditioner |
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2020
- 2020-07-22 CN CN202010708840.9A patent/CN111769535A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566956A (en) * | 2022-03-08 | 2022-05-31 | 珠海格力电器股份有限公司 | Zero-live line adjusting circuit and method and air conditioner |
| CN114566956B (en) * | 2022-03-08 | 2023-03-10 | 珠海格力电器股份有限公司 | Zero-live wire adjusting circuit and method and air conditioner |
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