CN103001334A - Suspension power extraction device and suspension power extraction method - Google Patents

Suspension power extraction device and suspension power extraction method Download PDF

Info

Publication number
CN103001334A
CN103001334A CN201210457629XA CN201210457629A CN103001334A CN 103001334 A CN103001334 A CN 103001334A CN 201210457629X A CN201210457629X A CN 201210457629XA CN 201210457629 A CN201210457629 A CN 201210457629A CN 103001334 A CN103001334 A CN 103001334A
Authority
CN
China
Prior art keywords
control switch
current transformer
stabilizing circuit
voltage stabilizing
resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201210457629XA
Other languages
Chinese (zh)
Other versions
CN103001334B (en
Inventor
何山
阮江军
高云鹏
肖微
徐振
常辉
武利会
谭甜源
樊润荣
朱文滔
刘高
易思超
王道龙
乐健
曾懿辉
刘剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCHOOL OF ELECTRICAL ENGINEERING WUHAN UNIVERSITY
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
SCHOOL OF ELECTRICAL ENGINEERING WUHAN UNIVERSITY
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SCHOOL OF ELECTRICAL ENGINEERING WUHAN UNIVERSITY, Foshan Power Supply Bureau of Guangdong Power Grid Corp filed Critical SCHOOL OF ELECTRICAL ENGINEERING WUHAN UNIVERSITY
Priority to CN201210457629.XA priority Critical patent/CN103001334B/en
Publication of CN103001334A publication Critical patent/CN103001334A/en
Application granted granted Critical
Publication of CN103001334B publication Critical patent/CN103001334B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention provides a suspension power extraction device which comprises a current transformer, a controller, a diode rectifying and voltage stabilizing circuit, a first control switch, a plurality of resistors with different resistance values and a second control switch. The controller is connected with a primary side of the current transformer, the diode rectifying and voltage stabilizing circuit, the first control switch and the second control switch; a first output end of the current transformer is connected with a first input end of the diode rectifying and voltage stabilizing circuit; a first input end is connected with multiple resistors through the first control switch; the other ends of the resistors are connected to a second input end of the diode rectifying and voltage stabilizing circuit; one end of the second control switch is connected with different second output ends, and the other end of the second control switch is connected with the second output end of the diode rectifying and voltage stabilizing circuit. The invention further provides the suspension power extraction method capable of meeting power extraction requirements of terminals and improving reliability in suspension power extraction on the condition that change range of current on the primary side of the circuit is wider than a preset range value.

Description

A kind of suspension electricity getting device and method
Technical field
The present invention relates to the application of electromagnetic induction, particularly relate to a kind of suspension electricity getting device and method.
Background technology
Traditional current transformer that utilizes is as getting when can equipment suspending power taking, and there is a peak power output in current transformer, and it square is directly proportional with the current transformer primary side current.Therefore, along with the increase of primary side current, the power output of current transformer increases sharply by zero, and high-power output certainly will cause the hear rate of higher voltage and Geng Gao, makes the load elements heating serious, the safety that may jeopardize load equipment; And when the power of instrument transformer output or voltage surpass the ability to bear of load, certainly will damage load equipment.
Therefore, traditional current transformer that utilizes can only be powered in the less current range of current transformer primary side as getting the power taking that can equipment suspends; When the current transformer primary side current suddenlys change, normally power taking or damage easily energy taking device.
Summary of the invention
The object of the invention is to propose a kind of suspension electricity getting device and method, can change in the situation wider than value range at the circuit primary side current, the reliability when satisfying the energy demand of getting of terminal and improving the suspension power taking.
The scheme that adopts:
A kind of suspension electricity getting device comprises: the resistance of current transformer, controller, diode rectification voltage stabilizing circuit, the first control switch, a plurality of different resistances and the second control switch;
Wherein, described controller connects primary side, the output of described diode rectification voltage stabilizing circuit, described the first control switch and described second control switch of current transformer;
Described current transformer comprises the first output and a plurality of the second output;
The first output of described current transformer connects the first input end of diode rectification voltage stabilizing circuit;
Described first input end connects an end of a plurality of resistance by described the first control switch, and the resistance of each described resistance is different;
The other end of each described resistance connects the second input of described diode rectification voltage stabilizing circuit;
One end of described the second control switch connects each described the second output, and the other end of described the second control switch connects the second input of described diode rectification voltage stabilizing circuit.
And a kind of suspension electricity-fetching method comprises step:
Detect the primary side current of current transformer and the output voltage of diode rectification voltage stabilizing circuit;
When the output voltage of described diode rectification voltage stabilizing circuit is higher than predetermined magnitude of voltage, increase gradually the resistance be connected between 2 inputs of diode rectification voltage stabilizing circuit, until the output voltage of described diode rectification voltage stabilizing circuit is lower than or equals described predetermined magnitude of voltage;
When the primary side current of described current transformer during greater than default the first electric current, increase gradually the coil turn of Current Transformer Secondary side, until the primary side current of described current transformer is less than or equal to described the first default electric current.
Among the present invention, when the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the resistance in parallel with load equivalent resistance, carry out current distributing, reduce the electric current to load; When the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the coil turn of Current Transformer Secondary side, reduce the induced voltage of secondary side, thereby reduce the power that offers load, under the electric current of current transformer primary side becomes suddenly large situation, can guarantee that also getting of current transformer can requirement; Can solve the increase along with primary side current, high hear rate, device that the power output of current transformer is caused by zero increasing sharply hold flimsy problem; Therefore, the present invention can change in the situation wider than value range at the circuit primary side current, the reliability when satisfying the energy demand of getting of terminal and improving the suspension power taking.
Description of drawings
Fig. 1 is a structural representation of apparatus of the present invention;
Fig. 2 is an embodiment flow chart of the inventive method;
Fig. 3 is another embodiment flow chart of the inventive method.
Embodiment
The present invention proposes a kind of suspension electricity getting device, one of them structural representation please refer to Fig. 1, comprising: resistance (R1, the R2 of current transformer, controller, diode rectification voltage stabilizing circuit, the first control switch K1, a plurality of different resistances ... Rn) and the second control switch K2;
Wherein, controller connects the primary side of current transformer, output, the first control switch K1 and the second control switch K2 of diode rectification voltage stabilizing circuit;
Current transformer comprises the first output and a plurality of the second output (N1, N2 ... Nn);
The first output of current transformer connects the first input end of diode rectification voltage stabilizing circuit;
First input end connects an end of a plurality of resistance by the first control switch K1, and the resistance of each resistance is different;
The other end of each resistance connects the second input of diode rectification voltage stabilizing circuit;
The end of the second control switch K2 connects each the second output, and the other end of the second control switch K2 connects the second input of diode rectification voltage stabilizing circuit.
Its operation principle is: when making Current Transformer carry out induction energy fetching, the size of current of monitor current instrument transformer primary side and the voltage (namely being the output end voltage of monitoring diode regulator rectifier circuit) of exporting to load are then given controller with monitored results; The voltage that controller will be monitored gained compares with default voltage, when the voltage that obtains when monitoring is higher than default magnitude of voltage, controls the resistance that the first control switch is connected one of them resistance minimum; After connecting resistance, again detect and export to the voltage of load, if still be higher than default voltage, then control the first control switch and connect the larger resistance of another resistance, until export to the magnitude of voltage that the voltage of load is lower than or equals to preset; The electric current that controller will be monitored gained compares with the electric current of presetting, if greater than default current value, then controls the second output of the secondary side of the second control switch making current instrument transformer, so that the coil number of secondary side increases.
The number of times that the voltage that monitoring is obtained and the voltage of presetting compare can also be set in watch-dog, and the number of times that the monitoring electric current that obtains and the electric current of presetting compare is set.
Among the present invention, when the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the resistance in parallel with load equivalent resistance, carry out current distributing, reduce the electric current to load; When the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the coil turn of Current Transformer Secondary side, reduce the induced voltage of secondary side, thereby reduce the power that offers load, under the electric current of current transformer primary side becomes suddenly large situation, can guarantee that also getting of current transformer can requirement; Can solve the increase along with primary side current, high hear rate, device that the power output of current transformer is caused by zero increasing sharply hold flimsy problem; Therefore, the present invention can change in the situation wider than value range at the circuit primary side current, the reliability when satisfying the energy demand of getting of terminal and improving the suspension power taking.
In Fig. 1 embodiment, the first control switch is single pole multiple throw or double-pole multithrow switch;
The second control switch is single pole multiple throw or double-pole multithrow switch.The first control switch, the second control switch can also be other gate-controlled switches.
When the resistance that the first control switch controls is set, can arrange according to the size order of resistance.So that the control of the first control switch.
The present invention also proposes a kind of suspension electricity-fetching method, please refer to Fig. 2, comprises step:
S1, the primary side current that detects current transformer and the output voltage of diode rectification voltage stabilizing circuit;
S2, when the output voltage of diode rectification voltage stabilizing circuit is higher than predetermined magnitude of voltage, increase gradually the resistance that is connected between 2 inputs of diode rectification voltage stabilizing circuit, until the magnitude of voltage that the output voltage of diode rectification voltage stabilizing circuit is lower than or equals to be scheduled to; Concrete, can increase gradually the resistance that is connected between 2 inputs of diode rectification voltage stabilizing circuit according to predetermined resistance.
S3, when the primary side current of current transformer during greater than default the first electric current, increase gradually the coil turn of Current Transformer Secondary side, until the primary side current of current transformer is less than or equal to the first default electric current.Concrete, can increase gradually according to the predetermined number of turn coil turn of Current Transformer Secondary side.
The magnitude of voltage that is lower than or equals to be scheduled to when the output voltage that satisfies the diode rectification voltage stabilizing circuit, and the primary side current that satisfies current transformer is when being less than or equal to the first default electric current, suspension electricity-fetching method of the present invention can proof load the safety of device, so that the present invention can be in current transformer primary side current variation situation greatly, guarantee the fail safe of suspension power taking, satisfy the power taking requirement.
Concrete, one of them embodiment flow chart of the inventive method please refer to Fig. 3, comprises step:
S301, arrange that resistance is adjusted number of times p=5 and coil is adjusted number of times q=6;
Resistance adjusts number of times and coil adjustment number of times can arrange according to actual needs; Concrete can arrange in program.
The output voltage of S302, detection diode rectification voltage stabilizing circuit;
Not being the energy taking device that adopts the diode rectification voltage stabilizing circuit to carry out rectification for other, namely is that the voltage that provides to load is provided.
S303, judge whether the output voltage of diode rectification voltage stabilizing circuit is higher than predetermined magnitude of voltage;
If the magnitude of voltage that the output voltage of diode rectification voltage stabilizing circuit is lower than or equals to be scheduled to then carries out step S304; If the output voltage of diode rectification voltage stabilizing circuit is higher than predetermined magnitude of voltage.Then carry out step S305.Wherein, default magnitude of voltage can arrange according to relevant empirical data.
S304, provide normal power supply to load;
Provide normal power supply to load, and return step S302.
S305, increase are connected to the resistance between 2 inputs of diode rectification voltage stabilizing circuit, and the value of p adds 1; The value radix of p is 0.
S306, judge whether p is 5;
If then carry out step S307; Then return if not step S302.
The primary side current of S307, detection current transformer;
S308, judge that the primary side current of current transformer is whether greater than the first default electric current;
If the primary side current of current transformer then carries out step S310 greater than the first default electric current; If the first electric current that the primary side current of current transformer is lower than or equals to preset then carries out step S309.Wherein, default current value can arrange according to relevant empirical data.
S309, provide normal power supply to load;
Provide normal power supply to load, and return step S307.
The coil turn of S310, increase Current Transformer Secondary side; The value of q adds 1;
S311, judge whether q is 6;
If then carry out step S312; If not, then return step S307.The value radix of q is 0.
S312, end are adjusted.
Among the present invention, when the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the resistance in parallel with load equivalent resistance, carry out current distributing, reduce the electric current to load; When the voltage that offers load when the Current Transformer Secondary side is higher than default voltage, increase the coil turn of Current Transformer Secondary side, reduce the induced voltage of secondary side, thereby reduce the power that offers load, under the electric current of current transformer primary side becomes suddenly large situation, can guarantee that also getting of current transformer can requirement; Can solve the increase along with primary side current, high hear rate, device that the power output of current transformer is caused by zero increasing sharply hold flimsy problem; Therefore, the present invention can change in the situation wider than value range at the circuit primary side current, the reliability when satisfying the energy demand of getting of terminal and improving the suspension power taking.
Above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (6)

1. a suspension electricity getting device is characterized in that, comprising: the resistance of current transformer, controller, diode rectification voltage stabilizing circuit, the first control switch, a plurality of different resistances and the second control switch;
Wherein, described controller connects primary side, the output of described diode rectification voltage stabilizing circuit, described the first control switch and described second control switch of current transformer;
Described current transformer comprises the first output and a plurality of the second output;
The first output of described current transformer connects the first input end of diode rectification voltage stabilizing circuit;
Described first input end connects an end of a plurality of resistance by described the first control switch, and the resistance of each described resistance is different;
The other end of each described resistance connects the second input of described diode rectification voltage stabilizing circuit;
One end of described the second control switch connects each described the second output, and the other end of described the second control switch connects the second input of described diode rectification voltage stabilizing circuit.
2. suspension electricity getting device according to claim 1 is characterized in that,
Described the first control switch is single pole multiple throw or double-pole multithrow switch.
3. suspension electricity getting device according to claim 1 and 2 is characterized in that,
Described the second control switch is single pole multiple throw or double-pole multithrow switch.
4. a suspension electricity-fetching method is characterized in that, comprises step:
Detect the primary side current of current transformer and the output voltage of diode rectification voltage stabilizing circuit;
When the output voltage of described diode rectification voltage stabilizing circuit is higher than predetermined magnitude of voltage, increase gradually the resistance be connected between 2 inputs of diode rectification voltage stabilizing circuit, until the output voltage of described diode rectification voltage stabilizing circuit is lower than or equals described predetermined magnitude of voltage;
When the primary side current of described current transformer during greater than default the first electric current, increase gradually the coil turn of Current Transformer Secondary side, until the primary side current of described current transformer is less than or equal to described the first default electric current.
5. suspension electricity-fetching method according to claim 4 is characterized in that,
Increase gradually the resistance that is connected between 2 inputs of described diode rectification voltage stabilizing circuit according to predetermined resistance.
6. according to claim 4 or 5 described suspension electricity-fetching methods, it is characterized in that,
Increase gradually the coil turn of described Current Transformer Secondary side according to the predetermined number of turn.
CN201210457629.XA 2012-11-14 2012-11-14 A kind of suspension electricity getting device Active CN103001334B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210457629.XA CN103001334B (en) 2012-11-14 2012-11-14 A kind of suspension electricity getting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210457629.XA CN103001334B (en) 2012-11-14 2012-11-14 A kind of suspension electricity getting device

Publications (2)

Publication Number Publication Date
CN103001334A true CN103001334A (en) 2013-03-27
CN103001334B CN103001334B (en) 2016-06-08

Family

ID=47929595

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210457629.XA Active CN103001334B (en) 2012-11-14 2012-11-14 A kind of suspension electricity getting device

Country Status (1)

Country Link
CN (1) CN103001334B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109937515A (en) * 2016-10-11 2019-06-25 阿莫善斯有限公司 Electromagnetic induction power supply unit
CN112865333A (en) * 2021-02-22 2021-05-28 广东电网有限责任公司广州供电局 High-voltage electricity taking device and method based on variable winding ratio
CN117060601A (en) * 2023-10-12 2023-11-14 南方电网数字电网研究院有限公司 Electromagnetic induction energy taking device and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1189119A (en) * 1997-09-05 1999-03-30 Yaskawa Electric Corp Noncontact power supply unit
CN1530788A (en) * 2003-03-14 2004-09-22 联想(北京)有限公司 Apparatus for regulating stabilized circuit outputting voltage
CN201328085Y (en) * 2008-12-19 2009-10-14 江苏省电力公司无锡供电公司 Suspension-type DC power supply device
CN102136766A (en) * 2011-05-09 2011-07-27 浙江图维电力科技有限公司 Cable inducing voltage stabilizing power supply device
CN202026262U (en) * 2011-05-13 2011-11-02 大庆市华禹石油机械制造有限公司 Magnetic-force flexible automatic control device for oil pumping unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1189119A (en) * 1997-09-05 1999-03-30 Yaskawa Electric Corp Noncontact power supply unit
CN1530788A (en) * 2003-03-14 2004-09-22 联想(北京)有限公司 Apparatus for regulating stabilized circuit outputting voltage
CN201328085Y (en) * 2008-12-19 2009-10-14 江苏省电力公司无锡供电公司 Suspension-type DC power supply device
CN102136766A (en) * 2011-05-09 2011-07-27 浙江图维电力科技有限公司 Cable inducing voltage stabilizing power supply device
CN202026262U (en) * 2011-05-13 2011-11-02 大庆市华禹石油机械制造有限公司 Magnetic-force flexible automatic control device for oil pumping unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109937515A (en) * 2016-10-11 2019-06-25 阿莫善斯有限公司 Electromagnetic induction power supply unit
CN109937515B (en) * 2016-10-11 2022-12-27 阿莫善斯有限公司 Electromagnetic induction power supply equipment
CN112865333A (en) * 2021-02-22 2021-05-28 广东电网有限责任公司广州供电局 High-voltage electricity taking device and method based on variable winding ratio
CN117060601A (en) * 2023-10-12 2023-11-14 南方电网数字电网研究院有限公司 Electromagnetic induction energy taking device and control method thereof

Also Published As

Publication number Publication date
CN103001334B (en) 2016-06-08

Similar Documents

Publication Publication Date Title
JP6571114B2 (en) High voltage intelligent switch AC capacitor
CN103500983A (en) Circuit of miniature electric leakage circuit breaker
CN103001334A (en) Suspension power extraction device and suspension power extraction method
CN104269916A (en) Method for achieving switching between high-voltage induction power supply and photovoltaic power supply
CN104101842A (en) Power unit debugging system of shore power supply
CN104238615B (en) A kind of voltage stabilizer realizing overload protection based on software control
CN104795203A (en) Intelligent remote monitoring type power transformer
CN203504145U (en) Small electric-leakage breaker circuit
CN202363890U (en) Power protector for transmission line fault monitoring terminal
CN107800198B (en) Power supply for supplying power to series compensation device and control method thereof
CN202837435U (en) Energy-saving power assessment test device for high-power inverter
CN111541375A (en) Harmonic-free high-power supply device
CN103997088A (en) Power transmission line electronic equipment power system
CN204205727U (en) Checkout gear power supply on a kind of ultra-high-tension power transmission line
CN104485644A (en) Intelligent building energy management system
CN203883517U (en) A power transmission line electronic equipment power supply system
CN203218053U (en) Magnetizing and demagnetizing device
CN103714943B (en) Magnetizing/demagnetizing device
CN204258268U (en) Building energy management apparatus
CN203352449U (en) Multifunctional direct-current high-voltage power supply with intelligent numerical-control voltage stabilization
CN204009614U (en) Heating tape control system and air conditioner
CN210982598U (en) High-voltage load monitoring circuit based on current detection
CN212086078U (en) Intelligent power circuit and power supply
CN205679950U (en) High-power DC power supply control system
CN205029341U (en) Active current balance of developments and meritorious control system that shifts

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant