CN107843764A - Power supply control device and method for electric equipment - Google Patents
Power supply control device and method for electric equipment Download PDFInfo
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- CN107843764A CN107843764A CN201710848375.7A CN201710848375A CN107843764A CN 107843764 A CN107843764 A CN 107843764A CN 201710848375 A CN201710848375 A CN 201710848375A CN 107843764 A CN107843764 A CN 107843764A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000002159 abnormal effect Effects 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims description 40
- 230000000052 comparative effect Effects 0.000 claims description 34
- 230000007613 environmental effect Effects 0.000 claims description 29
- 230000002459 sustained effect Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005856 abnormality Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power supply control device and method for electric equipment, which at least solve the problem of low safety of power supply for the electric equipment in the related technology. The disclosed power supply control device for electric equipment comprises: the metering module and the main control module; the metering module is used for metering electric energy data of the electric equipment and environment data of the electric equipment; the main control module is used for comparing the electric energy data with a first threshold value of a preset corresponding type according to the type to obtain a first comparison result, and/or comparing the environment data with a second threshold value of the preset corresponding type according to the type to obtain a second comparison result, and judging whether the electric equipment is abnormal according to the first comparison result and/or the second comparison result; and under the condition that the abnormality of the electric equipment is judged, the disconnection of the power supply loop of the electric equipment is controlled. The invention solves the problem of lower power supply safety of the electric equipment.
Description
Technical field
The present invention relates to power supply control technical field, in particular to a kind of power supply for electrical equipment control device and side
Method.
Background technology
Nowadays the electric energy metering module that user uses is typically only used for measuring energy data, even if continuous data
Middle appearance is abnormal to be also only capable of carrying out alert process based on abnormal information, can not timely make corresponding safeguard measure.Cause
When power supply unit occurs abnormal, power supply unit can not be protected, reduce the security of power supply.
The content of the invention
The invention provides a kind of power supply for electrical equipment control device and method, at least to solve in correlation technique to electricity consumption
The problem of security of equipment power supply is relatively low.
According to an aspect of the invention, there is provided a kind of power supply for electrical equipment control device, including：Metering module and
Main control module；The metering module is used to measure the energy data of electrical equipment and the environmental data of the electrical equipment；Institute
State main control module be used for by the energy data according to type with preset corresponding species first threshold compared with, obtain first
Comparative result, and/or by the environmental data according to type with preset corresponding species Second Threshold compared with, obtain second
Comparative result, judge whether the electrical equipment exception occurs according to first comparative result and/or the second comparative result；
In the case of judging that exception occurs in the electrical equipment, the current supply circuit of the electrical equipment is controlled to disconnect.
Alternatively, the main control module is used to carry out following at least one detection：Detect the power supply for electrical equipment loop
Whether in overvoltage or over-current state, after detecting that the electrical equipment is in overvoltage or over-current state, then the use is detected
Whether electric equipment sustained overvoltage or over-current state are more than the first preset duration, in the case of more than first preset duration,
It is abnormal to determine that the electrical equipment occurs；Detect the voltage zero-cross detection or current over-zero detection in the power supply for electrical equipment loop
Whether exceed the time limit, in the case where exceeding the time limit, it is abnormal to determine that the electrical equipment occurs；Detect the electricity in the power supply for electrical equipment loop
Whether the range of decrease being pressed in the second preset duration exceedes preset voltage value, in the case of more than the preset voltage value, it is determined that
The electrical equipment occurs abnormal；Whether the voltage unbalance factor for detecting the power supply for electrical equipment loop puts down more than predeterminated voltage
Weigh metric, and in the case where balancing metric more than the predeterminated voltage, it is abnormal to determine that the electrical equipment occurs；Detection institute
Whether the current unbalance factor for stating power supply for electrical equipment loop exceedes predetermined current balance metric, more than the predetermined current
In the case of balancing metric, it is abnormal to determine that the electrical equipment occurs.
Alternatively, the main control module is additionally operable to：By the energy data, the environmental data and described in detecting
The abnormal information of electrical equipment is sent to server end.
Alternatively, described device also includes：Dry contact inputs detection module, for according to the control from the main control module
A.C. contactor both ends described in signal detection processed whether there is voltage.
Alternatively, the main control module is controlled by controlling dry contact output circuit in the power supply for electrical equipment loop
A.C. contactor disconnect, after controlling the A.C. contactor to disconnect, control the dry contact input detection module detection
The A.C. contactor both ends whether there is voltage, in the case where voltage be present, then dry contact output circuit described in secondary control
To control the A.C. contactor to disconnect, to disconnect the current supply circuit of the electrical equipment.
According to another aspect of the present invention, there is provided a kind of power supply for electrical equipment control method, including：Metering electricity consumption is set
Standby energy data and the environmental data of the electrical equipment；By the energy data according to type to presetting corresponding species
First threshold is compared, and obtains the first comparative result, and/or by the environmental data according to type to presetting corresponding species
Second Threshold is compared, and obtains the second comparative result, judges institute according to first comparative result and/or the second comparative result
State whether electrical equipment exception occurs；In the case where judging that exception occurs in the electrical equipment, the electrical equipment is controlled
Current supply circuit disconnect.
Alternatively, it is described by the energy data according to type with preset corresponding species first threshold compared with, obtain
To the first comparative result, and/or by the environmental data according to type with preset corresponding species Second Threshold compared with, obtain
To the second comparative result, judge whether the electrical equipment occurs according to first comparative result and/or the second comparative result
It is abnormal, including carry out following at least one detection：Detect whether the power supply for electrical equipment loop is in overvoltage or over-current state,
After detecting that the electrical equipment is in overvoltage or over-current state, then detect the electrical equipment sustained overvoltage or over-current state
Whether more than the first preset duration, in the case of more than first preset duration, it is abnormal to determine that the electrical equipment occurs；
The voltage zero-cross detection or current over-zero for detecting the power supply for electrical equipment loop detect whether to exceed the time limit, in the case where exceeding the time limit,
It is abnormal to determine that the electrical equipment occurs；Detect the range of decrease of the voltage in the power supply for electrical equipment loop in the second preset duration
Whether exceed preset voltage value, in the case of more than the preset voltage value, it is abnormal to determine that the electrical equipment occurs；Detection
Whether the voltage unbalance factor in the power supply for electrical equipment loop exceedes predeterminated voltage balance metric, more than the default electricity
In the case of flattening weighing apparatus metric, it is abnormal to determine that the electrical equipment occurs；Detect the electric current in the power supply for electrical equipment loop
Whether degree of unbalancedness exceedes predetermined current balance metric, in the case where balancing metric more than the predetermined current, it is determined that
The electrical equipment occurs abnormal.
Alternatively, methods described also includes：After judging that exception occurs in the electrical equipment, by the electric energy number
Sent according to the abnormal information of the, environmental data and the electrical equipment detected to server end.
Alternatively, the current supply circuit of the control electrical equipment disconnect including：By controlling dry contact to export
Circuit controls the A.C. contactor in the power supply for electrical equipment loop to disconnect, and is returned with disconnecting the power supply of the electrical equipment
Road.
Alternatively, methods described also includes：After controlling the A.C. contactor to disconnect, control dry contact input detection
Module detects the A.C. contactor both ends and whether there is voltage；In the case of voltage being present at the A.C. contactor both ends,
Dry contact output circuit described in secondary control is so that the A.C. contactor disconnects again.
Scheme provided in an embodiment of the present invention, the electric energy and environmental data of electrical equipment are measured, according to metering
Data determine whether electrical equipment exception occurs, when electrical equipment occurs abnormal, electrical equipment is carried out in local real-time
Protection, the program can detect exception existing for electrical equipment in time, and be protected in real time to abnormal electrical equipment occurs
Shield, improve the security of power supply for electrical equipment.
Brief description of the drawings
Fig. 1 is the block diagram for the power supply for electrical equipment control device that the embodiment of the present invention 1 provides；
Fig. 2 is the block diagram for the power supply for electrical equipment control device that the embodiment of the present invention 2 provides；
Fig. 3 is the flow chart for the power supply for electrical equipment control method that the embodiment of the present invention 3 provides.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Embodiment 1
The invention provides a kind of power supply for electrical equipment control device, Fig. 1 is the block diagram of the device, as shown in figure 1, the dress
Put including following part：
Metering module 11 and main control module 12；
Metering module 11 is used to measure the energy data of electrical equipment and the environmental data of electrical equipment；
In the present embodiment, environmental data can include electrical equipment environment temperature, humidity and dew point.
Main control module 12 be used for by energy data according to type with preset corresponding species first threshold compared with, obtain
First comparative result, and/or by environmental data according to type with preset corresponding species Second Threshold compared with, obtain second
Comparative result, judge whether electrical equipment exception occurs according to the first comparative result and/or the second comparative result；Judging to use
In the case that exception occurs in electric equipment, the current supply circuit of electrical equipment is controlled to disconnect.
The power supply for electrical equipment control device of the present embodiment can be an electric power meter, such as intelligent electric meter, can
To realize the function of power supply for electrical equipment control by computation chip in intelligent electric meter and master chip, wherein, measured energy
Data and environmental data can be realized by computation chip, judge electrical equipment whether abnormal comparative analysis, Ke Yiyou
Computation chip is realized, can also be realized, can be set according to actual conditions by master chip.
In the present embodiment, energy data can include different types of parameter, the main control module such as electric current and voltage can
With the energy data that will be got, compared with belonging to same kind of predetermined threshold value with the energy data, such as get
Magnitude of voltage is compared compared with presetting corresponding voltage threshold, by the current value got with presetting corresponding current threshold
Compared with.The threshold value pre-set in the present embodiment specifically includes：Held time corresponding to over-pressed, excessively stream threshold value and overvoltage, excessively stream,
Voltage, current over-zero detection timeout threshold, voltage dip threshold value, voltage, current unbalance factor threshold value, temperature, humidity and dew point
Threshold value.
In the present embodiment, main control module 12 is used to carry out following at least one detection according to the energy data got,
To determine whether electrical equipment exception occurs.
Power supply for electrical equipment loop is detected whether in overvoltage or over-current state, detect electrical equipment be in overvoltage or
After over-current state, then whether electrical equipment sustained overvoltage or over-current state are detected more than the first preset duration, pre- more than first
If in the case of duration, it is abnormal to determine that electrical equipment occurs；
The voltage zero-cross detection in detection power supply for electrical equipment loop or current over-zero detect whether to exceed the time limit, in situation about exceeding the time limit
Under, it is abnormal to determine that electrical equipment occurs；
Whether the range of decrease of the voltage in detection power supply for electrical equipment loop in the second preset duration exceedes preset voltage value,
In the case of more than preset voltage value, it is abnormal to determine that electrical equipment occurs；
Whether the voltage unbalance factor for detecting power supply for electrical equipment loop exceedes predeterminated voltage balance metric, more than pre-
If in the case of balance of voltage metric, it is abnormal to determine that electrical equipment occurs；
Whether the current unbalance factor for detecting power supply for electrical equipment loop exceedes predetermined current balance metric, more than pre-
If in the case of current balance type metric, it is abnormal to determine that electrical equipment occurs.
In the present embodiment, main control module 12 is additionally operable to temperature, humidity and dew point in the environmental data got
Compared with predetermined temperature, humidity and dew point threshold value, the parameter in environmental data is higher than the situation of respective threshold
Under, it is abnormal to determine that electrical equipment occurs.
The power supply for electrical equipment control device that the present embodiment provides is counted to the electric energy and environmental data of electrical equipment
Amount, real-time guard is carried out to electrical equipment in local according to continuous data, improves the security of power supply for electrical equipment.
Embodiment 2
Fig. 2 shows the block diagram of the power supply for electrical equipment control device of the present embodiment, in the present embodiment, main control module by
Master chip 23 shown in Fig. 2 realized, the computation chip 22 of metering module as shown in Figure 2 is realized, as shown in Fig. 2 the dress
Put also includes dry contact input detection module, input and the phase of master chip 23 of the module on the basis of the device shown in Fig. 1
Even, the input of the module is connected with the A.C. contactor in electrical circuit, output end and the electrical equipment phase of A.C. contactor
Even, dry contact input detection module is used for basis from master chip control signal detection A.C. contactor both ends with the presence or absence of electricity
Pressure, so that master chip determines whether A.C. contactor is already off.Master chip is additionally operable in control power supply for electrical equipment loop
A.C. contactor disconnect after, control dry contact input detection module detection A.C. contactor both ends to whether there is voltage,
In the case where voltage be present, master chip controls dry contact output circuit with so that A.C. contactor disconnects again.
In the present embodiment, main control module is additionally operable to：By the energy data got, environmental data and the use detected
The abnormal information of electric equipment, for example, exception status flag is sent to server end, so that server end carries out big data analysis.
As shown in Fig. 2 master chip 23 by energy data, environmental data and can be detected by coupled communication module 25
The abnormal information of electrical equipment send to server 26.
Based on the device shown in Fig. 2, during power supply for electrical equipment control is carried out, read and measured using master chip 23
The energy data of chip 22 and the corresponding data of epidemic disaster detection module 21, finding electrical equipment 27 in overvoltage, excessively stream shape
State is simultaneously continued above certain time, and voltage, current over-zero detection time-out, voltage dip exceed certain amplitude, and voltage, electric current are uneven
When weighing apparatus degree is abnormal more than setting value etc., master chip 23 directly controls dry contact output circuit (not show temporarily in Fig. 2 by IO delivery outlets
Go out) corresponding reaction is made, to disconnect the A.C. contactor 28 in electrical equipment loop, and pass through dry contact input detecting circuit
Whether 24 (inputting detection module with above-mentioned dry contact) detection A.C. contactor both ends also have voltage, to judge whether it really breaks
Open, performed again if not disconnecting and disconnect A.C. contactor order, so as to reach the purpose of protection electrical equipment.Master chip will also
Multi-energy data, data of the Temperature and Humidity module and the status data of each exception status flag position of metering pass through CAN (Controller
Area Network, controller local area network), RS485, TCP (Transmission Control Protocol, transmission control
Agreement) mode such as/IP (Internet Protocol, the agreement interconnected between network), wireless telecommunications is sent to server etc. and sets
It is standby, to carry out big data analysis by server.Wherein, each threshold parameter needed for abnormal protection, bag are carried out to electrical equipment
Include overvoltage, excessively stream threshold value and hold time, voltage, current over-zero detection timeout threshold, voltage dip threshold value, voltage, electric current not
Degree of balance threshold value, humiture and dew point threshold value can be configured by way of Local or Remote communication.
In the present embodiment, judgement and the protection operation that abnormal protection is carried out to electrical equipment are local in metering device
Complete, not by such environmental effects so that power supply for electrical equipment control device is reliable and stable.
Embodiment 3
A kind of power supply for electrical equipment control method is present embodiments provided, Fig. 3 is the flow chart of this method, as shown in figure 3,
This method includes following processing：
Step 301：Measure the energy data of electrical equipment and the environmental data of electrical equipment；
Step 302：By energy data according to type with preset corresponding species first threshold compared with, obtain the first ratio
Relatively result, and/or by environmental data according to type with preset corresponding species Second Threshold compared with, obtain second and compare knot
Fruit, judge whether electrical equipment exception occurs according to the first comparative result and/or the second comparative result；
Step 303：In the case where judging that exception occurs in electrical equipment, control the current supply circuit of electrical equipment to disconnect and connect
Connect.
In the present embodiment, by energy data according to type with preset corresponding species first threshold compared with, obtain
First comparative result, and/or by environmental data according to type with preset corresponding species Second Threshold compared with, obtain second
Comparative result, judge whether electrical equipment abnormal operation occurs and include according to the first comparative result and/or the second comparative result
Carry out following at least one detection：
Power supply for electrical equipment loop is detected whether in overvoltage or over-current state, detect electrical equipment be in overvoltage or
After over-current state, then whether electrical equipment sustained overvoltage or over-current state are detected more than the first preset duration, pre- more than first
If in the case of duration, it is abnormal to determine that electrical equipment occurs；
The voltage zero-cross detection in detection power supply for electrical equipment loop or current over-zero detect whether to exceed the time limit, in situation about exceeding the time limit
Under, it is abnormal to determine that electrical equipment occurs；
Whether the range of decrease of the voltage in detection power supply for electrical equipment loop in the second preset duration exceedes preset voltage value,
In the case of more than preset voltage value, it is abnormal to determine that electrical equipment occurs；
Whether the voltage unbalance factor for detecting power supply for electrical equipment loop exceedes predeterminated voltage balance metric, more than pre-
If in the case of balance of voltage metric, it is abnormal to determine that electrical equipment occurs；
Whether the current unbalance factor for detecting power supply for electrical equipment loop exceedes predetermined current balance metric, more than pre-
If in the case of current balance type metric, it is abnormal to determine that electrical equipment occurs.
Alternatively, the power supply for electrical equipment control method that the present embodiment provides, which is additionally included in, judges that electrical equipment appearance is different
After often, the abnormal information of energy data, environmental data and the electrical equipment detected is sent to server end.
The operation that the current supply circuit for the control electrical equipment being related in the present embodiment disconnects can include：Pass through control
Dry contact output circuit processed controls the A.C. contactor in power supply for electrical equipment loop to disconnect, to disconnect the power supply of electrical equipment
Loop.
The power supply for electrical equipment control method that the present embodiment provides also includes：After control A.C. contactor disconnects, control
Dry contact input detection module detection A.C. contactor both ends processed whether there is voltage；Voltage be present at A.C. contactor both ends
In the case of, dry contact output circuit is controlled again so that A.C. contactor disconnects.
On the device in above-described embodiment, wherein unit, module performs the concrete mode of operation relevant
It is described in detail in the embodiment of this method, explanation will be not set forth in detail herein.
Scheme provided in an embodiment of the present invention, can while the various energy, the data of the Temperature and Humidity module of electrical equipment is measured
Whether there is exception by the comparative analysis to continuous data, detection electrical equipment in local, detecting electrical equipment presence
In the case of exception, real-time guard is carried out to electrical equipment, improves the security of power supply for electrical equipment.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and the common knowledge in the art do not invented including the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
- A kind of 1. power supply for electrical equipment control device, it is characterised in that including：Metering module and main control module；The metering module is used to measure the energy data of electrical equipment and the environmental data of the electrical equipment；The main control module be used for by the energy data according to type with preset corresponding species first threshold compared with, obtain To the first comparative result, and/or by the environmental data according to type with preset corresponding species Second Threshold compared with, obtain To the second comparative result, judge whether the electrical equipment occurs according to first comparative result and/or the second comparative result It is abnormal；In the case where judging that exception occurs in the electrical equipment, the current supply circuit of the electrical equipment is controlled to disconnect.
- 2. device according to claim 1, it is characterised in that the main control module is used to carry out following at least one inspection Survey：The power supply for electrical equipment loop is detected whether in overvoltage or over-current state, is detecting that the electrical equipment was in After pressure or over-current state, then whether the electrical equipment sustained overvoltage or over-current state are detected more than the first preset duration, super In the case of crossing first preset duration, it is abnormal to determine that the electrical equipment occurs；The voltage zero-cross detection or current over-zero for detecting the power supply for electrical equipment loop detect whether to exceed the time limit, in situation about exceeding the time limit Under, it is abnormal to determine that the electrical equipment occurs；Detect whether the range of decrease of the voltage in the power supply for electrical equipment loop in the second preset duration exceedes preset voltage value, In the case of more than the preset voltage value, it is abnormal to determine that the electrical equipment occurs；Whether the voltage unbalance factor for detecting the power supply for electrical equipment loop exceedes predeterminated voltage balance metric, more than institute In the case of stating predeterminated voltage balance metric, it is abnormal to determine that the electrical equipment occurs；Whether the current unbalance factor for detecting the power supply for electrical equipment loop exceedes predetermined current balance metric, more than institute In the case of stating predetermined current balance metric, it is abnormal to determine that the electrical equipment occurs.
- 3. device according to claim 2, it is characterised in that the main control module is additionally operable to：The abnormal information of the energy data, the environmental data and the electrical equipment detected is sent to server End.
- 4. device according to claim 1, it is characterised in that described device also includes：Dry contact inputs detection module, for detecting the power supply for electrical equipment according to the control signal from the main control module A.C. contactor both ends in loop whether there is voltage.
- 5. device according to claim 4, it is characterised in that the main control module by control dry contact output circuit come Control the A.C. contactor to disconnect, after controlling the A.C. contactor to disconnect, control the dry contact input detection mould Block detects the A.C. contactor both ends and whether there is voltage, and in the case where voltage be present, then dry contact is defeated described in secondary control Go out circuit to control the A.C. contactor to disconnect, to disconnect the current supply circuit of the electrical equipment.
- A kind of 6. power supply for electrical equipment control method, it is characterised in that including：Measure the energy data of electrical equipment and the environmental data of the electrical equipment；By the energy data according to type with preset corresponding species first threshold compared with, obtain the first comparative result, And/or by the environmental data according to type with preset corresponding species Second Threshold compared with, obtain the second comparative result, Judge whether the electrical equipment exception occurs according to first comparative result and/or the second comparative result；In the case where judging that exception occurs in the electrical equipment, the current supply circuit of the electrical equipment is controlled to disconnect.
- 7. according to the method for claim 6, it is characterised in that described that the energy data is according to type corresponding to presetting The first threshold of species is compared, and obtains the first comparative result, and/or the environmental data is according to type corresponding to presetting The Second Threshold of species is compared, and obtains the second comparative result, according to first comparative result and/or the second comparative result Judge whether the electrical equipment exception occurs, including carry out following at least one detection：The power supply for electrical equipment loop is detected whether in overvoltage or over-current state, is detecting that the electrical equipment was in After pressure or over-current state, then whether the electrical equipment sustained overvoltage or over-current state are detected more than the first preset duration, super In the case of crossing first preset duration, it is abnormal to determine that the electrical equipment occurs；The voltage zero-cross detection or current over-zero for detecting the power supply for electrical equipment loop detect whether to exceed the time limit, in situation about exceeding the time limit Under, it is abnormal to determine that the electrical equipment occurs；Detect whether the range of decrease of the voltage in the power supply for electrical equipment loop in the second preset duration exceedes preset voltage value, In the case of more than the preset voltage value, it is abnormal to determine that the electrical equipment occurs；Whether the voltage unbalance factor for detecting the power supply for electrical equipment loop exceedes predeterminated voltage balance metric, more than institute In the case of stating predeterminated voltage balance metric, it is abnormal to determine that the electrical equipment occurs；Whether the current unbalance factor for detecting the power supply for electrical equipment loop exceedes predetermined current balance metric, more than institute In the case of stating predetermined current balance metric, it is abnormal to determine that the electrical equipment occurs.
- 8. according to the method for claim 7, it is characterised in that methods described also includes：After judge that exception occurs in the electrical equipment, by the energy data, the environmental data and detect The abnormal information of the electrical equipment is sent to server end.
- 9. according to the method for claim 6, it is characterised in that the current supply circuit of the control electrical equipment, which disconnects, to be connected Connect, including：The A.C. contactor in the power supply for electrical equipment loop is controlled to disconnect by controlling dry contact output circuit, to disconnect The current supply circuit of the electrical equipment.
- 10. according to the method for claim 9, it is characterised in that methods described also includes：After controlling the A.C. contactor to disconnect, control dry contact input detection module detects the A.C. contactor both ends With the presence or absence of voltage；In the case of voltage being present at the A.C. contactor both ends, then dry contact output circuit described in secondary control is so that the friendship Contactor is flowed to disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710848375.7A CN107843764A (en) | 2017-09-19 | 2017-09-19 | Power supply control device and method for electric equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710848375.7A CN107843764A (en) | 2017-09-19 | 2017-09-19 | Power supply control device and method for electric equipment |
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| CN107843764A true CN107843764A (en) | 2018-03-27 |
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| CN201710848375.7A Pending CN107843764A (en) | 2017-09-19 | 2017-09-19 | Power supply control device and method for electric equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822639A (en) * | 2019-11-11 | 2020-02-21 | 海润新风（重庆）智能技术有限公司 | Novel intelligent controller and control method thereof |
| CN111211596A (en) * | 2020-01-16 | 2020-05-29 | 摩力方科技(北京)有限公司 | Method and device for monitoring power utilization state of charging cabinet |
| CN112670945A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Pre-judgment control method of protection switch and protection switch |
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| CN112670945A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Pre-judgment control method of protection switch and protection switch |
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