CN102522832A - Novel current inducing power supply system - Google Patents
Novel current inducing power supply system Download PDFInfo
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- CN102522832A CN102522832A CN201110407392XA CN201110407392A CN102522832A CN 102522832 A CN102522832 A CN 102522832A CN 201110407392X A CN201110407392X A CN 201110407392XA CN 201110407392 A CN201110407392 A CN 201110407392A CN 102522832 A CN102522832 A CN 102522832A
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Abstract
The invention belongs to the field of high voltage and ultrahigh voltage power supply systems, and particularly relates to a novel current inducing power supply system. The current inducing power supply system comprises more than two magnet exciting coils, a detection control unit, and a switch-on and switch-off combining unit, wherein transmission ports of the magnet exciting coils are connected with a transmission port of the switch-on and switch-off combining unit; a transmission port of the detection control unit is connected with the transmission port of the switch-on and switch-off assembly unit; the detection control unit detects output currents of the magnet exciting coils and compares the output currents with set standard values, thereby controlling a switch of the switch-on and switch-off combining unit to accomplish different combinations of switch-on and switch-off of switches; the magnet exciting coils have different numbers of turns; and the detection control unit includes a current mutual inductor, a current dividing module, a sampling unit, an Analog-to-Digital (A/D) converter, a micro-processor and a single chip control module. The current inducing power supply system disclosed by the invention can accurately detect short-circuit current in case of fault, thereby effectively protecting subsequent circuits.
Description
Technical field
The invention belongs to high pressure and superhigh pressure electric power system field, relate in particular to a kind of New type of current inductive power supply system.
Background technology
Current transformer is with a wide range of applications in electric power system, but for the power-supply system of its high-pressure side energy supply is the difficult point of research, is restricting the application of active electric current instrument transformer always.Especially the problem that current transformer is saturated becomes increasingly conspicuous.When power supply circuits Short-Circuit High Current occurred suddenly, often current transformer can occur saturatedly suddenly, and the power consumption equipment electric current is excessive, the too high on the contrary device damage of temperature, high-pressure side circuit cisco unity malfunction simultaneously, circuit damage.Circuit in the past all is through Transient Suppression Diode (TVS) electronic current mutual inductor to be carried out current-limiting protection, and the short circuit current when this both can't accurately record fault also can't be protected follow-up circuit.
Summary of the invention
The present invention is intended to overcome the weak point of prior art and a kind of short circuit current can accurately record fault the time is provided, the New type of current inductive power supply system that follow-up circuit is effectively protected.
For solving the problems of the technologies described above, the present invention is achieved in that a kind of New type of current induction confession system, and it comprises: two above magnet exciting coils, detect control units and turn-off assembled units; The transmit port of said magnet exciting coil is joined with the transmit port of turn-offing assembled unit; The transmit port of said detection control unit is joined with the transmit port of turn-offing assembled unit; Said detection control unit detects the output current of magnet exciting coil, and compares with the established standards value, thereby shutoff and closure that the switch of assembled unit carries out various combination are turn-offed in control.
As a kind of preferred version, the number of turn of magnet exciting coil according to the invention is different.
As another kind of preferred version, detection control unit according to the invention comprises: current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module; The transmit port of said current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module is joined successively; Said current transformer records the output current of magnet exciting coil; Said sampling unit is sampled to the diverter module output current; Said A/D converter carries out the A/D conversion to the sampling unit output current; Said microprocessing unit is compared to conversion after-current value and established standards scope; After said single-chip microcomputer is accepted the microprocessing unit signal, carry out shutoff and close command to turn-offing the unit.
Further, magnet exciting coil according to the invention is 3, and its transmit port is joined with the transmit port of turn-offing assembled unit.
The excessive current transformer that causes of electric current was saturated when the present invention had successfully solved the power supply circuits suddenly-applied short circuit, and the current transformer heating is serious, the problem of power consumption equipment damage.When recording the failed shorted electric current, also successfully follow-up circuit is carried out safeguard measure.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 detects control unit partial circuit theory diagram for the present invention.
Embodiment
As shown in the figure, New type of current induction confession system, it comprises: two above magnet exciting coils, detection control units and shutoff assembled units; The transmit port of said magnet exciting coil is joined with the transmit port of turn-offing assembled unit; The transmit port of said detection control unit is joined with the transmit port of turn-offing assembled unit; Said detection control unit detects the output current of magnet exciting coil, and compares with the established standards value, thereby shutoff and closure that the switch of assembled unit carries out various combination are turn-offed in control.
The number of turn of magnet exciting coil according to the invention is different.Magnet exciting coil according to the invention can be selected 3, and its transmit port is joined with the transmit port of turn-offing assembled unit.
Detection control unit according to the invention comprises: current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module; The transmit port of said current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module is joined successively; Said current transformer records the output current of magnet exciting coil; Said sampling unit is sampled to the diverter module output current; Said A/D converter carries out the A/D conversion to the sampling unit output current; Said microprocessing unit is compared to conversion after-current value and established standards scope; After said single-chip microcomputer is accepted the microprocessing unit signal, carry out shutoff and close command to turn-offing the unit.
Referring to shown in Figure 1, the novel induced current electric power system of the present invention comprises: the high voltage supply system secondary of 2 or a plurality of magnet exciting coil; The complete detection control unit of one cover; The complete shutoff assembled unit of one cover.Wherein, the detection control unit detects the output current of magnet exciting coil, and compares with the established standards value, thereby shutoff and closure that the switch of assembled unit carries out various combination are turn-offed in control.The two ends of 2 of the present invention or a plurality of magnet exciting coils all are connected in turn-offs among the unit.
Referring to shown in Figure 2, the present invention detects control unit and comprises: current transformer, diverter module, sampling unit, A/D converter, microprocessor, single chip control module.The present invention detects control unit records magnet exciting coil through current transformer output current; Sample rate current is sampled to the diverter module output current; A/D converter carries out the A/D conversion to the sampling module output current; Microprocessor is compared to conversion after-current value and established standards scope; Microprocessor compares back output processing signals; After single chip control module is accepted microprocessor signals, carry out shutoff and close command to turn-offing the unit.
The present invention turn-offs the control of single chip control module in the only examined control unit of switch in the assembled unit.
2 of the present invention or a plurality of magnet exciting coil end are in simultaneously and turn-off in the assembled unit circuit.Turn-off assembled unit and can use a magnet exciting coil output current according to the instruction of single chip control module; Also can use two or more magnet exciting coil output currents according to the instruction of single chip control module; Wherein when using more than (comprising) two magnet exciting coil output currents; Turn-off assembled unit and turn-off according to the instruction of single chip control module, closed to offset short circuit current, output current is remained in the rated range.When detecting the electric current over range and carry out the shutoff instruction, can send short-circuit signal to host computer, overhaul to remind the staff.
Referring to Fig. 1, the invention provides one and overlap the excessive induction by current electric power system of electric current in the time of to tackle the electric power system short circuit.
In an example, the end of 3 magnet exciting coils inserts switch simultaneously and turn-offs in the assembled unit circuit, and three magnet exciting coils can be used as 3 different current sources in circuit, and circuit has and only have an output.The switch combination of circuit simultaneously is by detecting control unit control.
In an example, turn-off 3 magnet exciting coils of assembled unit may command and carry out positive reversal connection in many ways.In this example, switch combination circuit is actual is the complicated circuitry structure that is together to form by a plurality of switches.
In an example, turn-off assembled unit and can let 3 magnet exciting coils carry out multiple positive reversal connection, to reach the purpose that consumes short circuit current.
In the present embodiment, at first there is the control unit of detection that output current is detected comparison.
When detected electric current was in the output-current rating scope in detecting control unit, microprocessor sent hold instruction to single chip control module, and at this moment, single chip control module is not carried out any operation.
When the detection control unit detected electric current above the output-current rating scope, microprocessor sent the current-limiting protection instruction to single chip control module, and at this moment, the single chip control module control switch turn-offs, and makes output current drop to minimum value; Subsequently, detect control unit and continue output current is detected comparison, microprocessor continues to send instruction to single chip control module, continue adjustment and turn-off the assembled unit circuit, until output current in rated range.
When detecting control unit and find that detected circuit surpasses 3 times of specified standards suddenly, send the short circuit alarm to host computer by microprocessor.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a New type of current inductive power supply system is characterized in that, comprising: two above magnet exciting coils, detection control units and shutoff assembled units; The transmit port of said magnet exciting coil is joined with the transmit port of turn-offing assembled unit; The transmit port of said detection control unit is joined with the transmit port of turn-offing assembled unit; Said detection control unit detects the output current of magnet exciting coil, and compares with the established standards value, thereby shutoff and closure that the switch of assembled unit carries out various combination are turn-offed in control.
2. New type of current inductive power supply according to claim 1 system, it is characterized in that: the number of turn of said magnet exciting coil is different.
3. New type of current inductive power supply according to claim 2 system, it is characterized in that: said detection control unit comprises: current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module; The transmit port of said current transformer, diverter module, sampling unit, A/D converter, microprocessor and single chip control module is joined successively; Said current transformer records the output current of magnet exciting coil; Said sampling unit is sampled to the diverter module output current; Said A/D converter carries out the A/D conversion to the sampling unit output current; Said microprocessing unit is compared to conversion after-current value and established standards scope; After said single-chip microcomputer is accepted the microprocessing unit signal, carry out shutoff and close command to turn-offing the unit.
4. New type of current inductive power supply according to claim 3 system, it is characterized in that: said magnet exciting coil is 3, its transmit port is joined with the transmit port of turn-offing assembled unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407392XA CN102522832A (en) | 2011-12-09 | 2011-12-09 | Novel current inducing power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407392XA CN102522832A (en) | 2011-12-09 | 2011-12-09 | Novel current inducing power supply system |
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| Publication Number | Publication Date |
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| CN102522832A true CN102522832A (en) | 2012-06-27 |
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| CN201110407392XA Pending CN102522832A (en) | 2011-12-09 | 2011-12-09 | Novel current inducing power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451705A (en) * | 2016-12-20 | 2017-02-22 | 北京小米移动软件有限公司 | Electronic equipment, wireless charging system, equipment, method and device |
| CN106935388A (en) * | 2017-02-23 | 2017-07-07 | 福州大学 | A kind of Multiple coil magnetic coupling receiving coil structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555599A (en) * | 2001-10-09 | 2004-12-15 | ��ʿͨ��ʽ���� | Overload current protection apparatus |
| CN1682419A (en) * | 2002-07-12 | 2005-10-12 | 麦克劳-爱迪生公司 | Electrical network protection system |
| CN102157914A (en) * | 2011-04-02 | 2011-08-17 | 山东电力研究院 | Novel half-wave rapid detection method for relay protection device |
-
2011
- 2011-12-09 CN CN201110407392XA patent/CN102522832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555599A (en) * | 2001-10-09 | 2004-12-15 | ��ʿͨ��ʽ���� | Overload current protection apparatus |
| CN1682419A (en) * | 2002-07-12 | 2005-10-12 | 麦克劳-爱迪生公司 | Electrical network protection system |
| CN102157914A (en) * | 2011-04-02 | 2011-08-17 | 山东电力研究院 | Novel half-wave rapid detection method for relay protection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451705A (en) * | 2016-12-20 | 2017-02-22 | 北京小米移动软件有限公司 | Electronic equipment, wireless charging system, equipment, method and device |
| CN106935388A (en) * | 2017-02-23 | 2017-07-07 | 福州大学 | A kind of Multiple coil magnetic coupling receiving coil structure |
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Application publication date: 20120627 |