CN102497035B - System and method for induction electricity taking of high-voltage line - Google Patents
System and method for induction electricity taking of high-voltage line Download PDFInfo
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- CN102497035B CN102497035B CN201110382214.6A CN201110382214A CN102497035B CN 102497035 B CN102497035 B CN 102497035B CN 201110382214 A CN201110382214 A CN 201110382214A CN 102497035 B CN102497035 B CN 102497035B
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Abstract
The invention belongs to the field of electric power system, and provides a system and a method for induction electricity taking of a high-voltage line. A load current detection module detects the load current, and outputs an electric signal indicating the load current; a microcontroller outputs a path switching signal according to the load current; an electricity taking path switching module switches electricity taking paths; two types of iron core winding mutual inductors with different magnetic permeabilities are adopted, so that a high-magnetic-permeability mutual inductor unit can be energized when the load of an inductive transmission line is small and the magnetic field energy around a conducting wire is weak; and a low-magnetic-permeability mutual inductor unit can be de-energized when the line loads high current. By using the system and the method, the problem of energization when a high-magnetic-permeability mutual inductor is saturated and cannot perform linear output is solved, the problem that low-current electricity taking and high-current electricity taking of the conventional energizing device cannot be realized at the same time is solved, and the problems of electromagnetic saturation caused by high changing current and unstable power supply caused by long-time cloudy and rainy weather in the prior art are solved; moreover, the power supply reliability is high, and the practicability is strong.
Description
Technical field
The invention belongs to field of power, relate in particular to a kind of system and method for high-tension line induction power taking.
Background technology
Electric line has the features such as line topological complexity, environmental condition is complicated, phenomenon of the failure is complicated, if installation detecting device on the line, can deal with problems largely, conventional method is to adopt solar energy in large area power taking to coordinate induction power taking, but the electromagnetism that this method causes large variable-current is saturated and long-time rainy weather, there will be the problem of power supply instability.
Summary of the invention
The invention provides a kind of system and method for high-tension line induction power taking, while being intended to solve traditional mode for line detection apparatus employing solar energy in large area power taking cooperation induction power taking, there is the saturated and long-time rainy weather of the electromagnetism causing more greatly when curent change, there will be the problem that power supply is unstable, reliability is low.
The object of the present invention is to provide a kind of system for high-tension line induction power taking, described system comprises:
For detection of the size of load current, and output represents the load current detection module of the signal of telecommunication of load current size;
Be connected with described load current detection module, for receiving the signal of telecommunication of described load current detection module output, and according to load current size, the microcontroller of output channel switching signal;
Be connected with described microcontroller, for receiving the path switching signal of described microcontroller output, the power taking path handover module that power taking path is switched;
Be connected with described power taking path handover module, be used to the instrument transformer module of the checkout gear inductive power supply of installing on circuit.
Another object of the present invention is to provide a kind of method for high-tension line induction power taking, the method comprises the following steps:
Load current detection module detects load current size, and output represents the signal of telecommunication of load current size;
Microcontroller receives the signal of telecommunication of described load current detection module output, and according to load current size, output channel switching signal;
Power taking path handover module receives the path switching signal of described microcontroller output, and power taking path is switched;
Instrument transformer module is the checkout gear inductive power supply of installing on circuit.
The invention provides the system and method for high-tension line induction power taking, load current detection module detects load current size, output represents the signal of telecommunication of load current size, microcontroller is according to load current size, output channel switching signal, power taking path handover module switches power taking path, adopt the mode of the coiling instrument transformer unshakable in one's determination of two kinds of different magnetic permeabilitys, when making high magnetic permeability mutual inductor unit less and wire surrounding magnetic field energy be weak in induction transmission line load, getting can, low magnetic permeability mutual inductor unit is larger at the larger electric current of line load, low magnetic permeability instrument transformer is saturated cannot linear output time, getting can, the little electric current power taking of traditional energy taking device and the problem that large electric current power taking cannot take into account have been avoided, solved in conventional method large variable-current has been caused to the problem of power supply instability appears in the saturated and long-time rainy weather of electromagnetism, power supply reliability is high, practical.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the system for high-tension line induction power taking that provides of the embodiment of the present invention;
Fig. 2 is the principle schematic of the system for high-tension line induction power taking that provides of the embodiment of the present invention;
Fig. 3 is the flow chart of the method for high-tension line induction power taking that provides of the embodiment of the present invention.
In figure: 1, transmission line; 2, DC power output end mouth.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in restriction invention.
Fig. 1 shows the structure of the system for high-tension line induction power taking that the embodiment of the present invention provides.For convenience of explanation, only show part related to the present invention.
This system comprises:
For detection of the size of load current, and output represents the load current detection module 11 of the signal of telecommunication of load current size;
Be connected with load current detection module 11, for receiving the signal of telecommunication of load current detection module 11 outputs, and according to load current size, the microcontroller 12 of output channel switching signal;
Be connected with microcontroller 12, for receiving the path switching signal of microcontroller 12 outputs, the power taking path handover module 13 that power taking path is switched;
13(can adopt relay to realize its function with power taking path handover module) be connected, be used to the instrument transformer module 14 of the checkout gear inductive power supply of installing on circuit.
In embodiments of the present invention, load current detection module 11 is by the size of Hall element testing load current.
In embodiments of the present invention, power taking path handover module 13 switches power taking path by microcontroller 12 control relays.
In embodiments of the present invention, instrument transformer module 14 comprises:
Be connected with power taking path handover module 13, for responding to the less and wire surrounding magnetic field energy of transmission line load when weak, get can high magnetic permeability mutual inductor unit 142;
Be connected with power taking path handover module 13, for when the larger electric current of line load larger, get can low magnetic permeability mutual inductor unit 141.
In embodiments of the present invention, low magnetic permeability mutual inductor unit 141 and the instrument transformer of high magnetic permeability mutual inductor unit 142 for adopting the coiling unshakable in one's determination of two kinds of different magnetic permeabilitys to form.
In embodiments of the present invention, power taking path handover module 13 is also connected with rectification module 15.
In embodiments of the present invention, rectification module 15 is also connected with DC power output end mouth 2.
As shown in Figure 3, another object of the present invention is to provide a kind of method for high-tension line induction power taking, the method comprises the following steps:
In step S301, load current detection module 11 detects load current size, and output represents the signal of telecommunication of load current size;
In step S302, microcontroller 12 receives the signal of telecommunication of load current detection module 11 outputs, and according to load current size, output channel switching signal;
In step S303, power taking path handover module 13 receives the path switching signal of microcontroller 12 outputs, and power taking path is switched;
In step S304, the checkout gear inductive power supply of instrument transformer module 14 for installing on circuit.
In embodiments of the present invention, the implementation method that instrument transformer module 14 is the checkout gear inductive power supply installed on circuit is:
Low magnetic permeability mutual inductor unit 141 is when in induction transmission line load, less and wire surrounding magnetic field energy is weak, and getting can;
High magnetic permeability mutual inductor unit 142 is larger at the larger electric current of line load, and low magnetic permeability instrument transformer is saturated cannot linear output time, gets energy.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 2, instrument transformer and transmission line 1 are close, adopt the coiling instrument transformer unshakable in one's determination of two kinds of different magnetic permeabilitys, the instrument transformer of higher magnetic permcability is the energy taking device in the less and weak situation of wire surrounding magnetic field energy as induction transmission line load, compared with the instrument transformer of low magnetic permeability, as the energy taking device that causes more greatly when the larger electric current of line load that the less instrument transformer of magnetic permeability is saturated cannot linear output time, the little electric current power taking of traditional energy taking device and the problem that large electric current power taking cannot take into account have so just been avoided.
The embodiment of the present invention is provided for the system and method for high-tension line induction power taking, load current detection module 11 detects load current size, output represents the signal of telecommunication of load current size, microcontroller 12 is according to load current size, output channel switching signal, power taking path handover module 13 switches power taking path, adopt the mode of the coiling instrument transformer unshakable in one's determination of two kinds of different magnetic permeabilitys, when making high magnetic permeability mutual inductor unit 142 less and wire surrounding magnetic field energy be weak in induction transmission line load, getting can, low magnetic permeability mutual inductor unit 141 is larger at the larger electric current of line load, low magnetic permeability instrument transformer 141 is saturated cannot linear output time, getting can, the little electric current power taking of traditional energy taking device and the problem that large electric current power taking cannot take into account have been avoided, solved in conventional method large variable-current has been caused to the problem of power supply instability appears in the saturated and long-time rainy weather of electromagnetism, power supply reliability is high, practical.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. for a system for high-tension line induction power taking, it is characterized in that, described system comprises:
For detection of the size of load current, and output represents the load current detection module of the signal of telecommunication of load current size;
Be connected with described load current detection module, for receiving the signal of telecommunication of described load current detection module output, and according to load current size, the microcontroller of output channel switching signal;
Be connected with described microcontroller, for receiving the path switching signal of described microcontroller output, the power taking path handover module that power taking path is switched;
Be connected with described power taking path handover module, be used to the instrument transformer module of the checkout gear inductive power supply of installing on circuit;
Described load current detection module is by the size of Hall element testing load current;
Stating power taking path handover module switches power taking path by microprocessor controls relay;
Described instrument transformer module comprises: be connected with described power taking path handover module, for responding to the less and wire surrounding magnetic field energy of transmission line load when weak, get can high magnetic permeability mutual inductor unit;
Be connected with described power taking path handover module, for when the larger electric current of line load larger, get can low magnetic permeability mutual inductor unit;
Described low magnetic permeability mutual inductor unit and the high magnetic permeability mutual inductor unit instrument transformer for adopting the coiling unshakable in one's determination of two kinds of different magnetic permeabilitys to form;
Described power taking path handover module is also connected with rectification module.
2. for a method for high-tension line induction power taking, it is characterized in that, the method comprises the following steps:
Load current detection module detects load current size, and output represents the signal of telecommunication of load current size; Microcontroller receives the signal of telecommunication of described load current detection module output, and according to load current size, output channel switching signal;
Power taking path handover module receives the path switching signal of described microcontroller output, and power taking path is switched; Instrument transformer module is the checkout gear inductive power supply of installing on circuit;
Described instrument transformer module is that the implementation method of the checkout gear inductive power supply installed on circuit is: low magnetic permeability mutual inductor unit is when in the load of induction transmission line, less and wire surrounding magnetic field energy is weak, and getting can; High magnetic permeability mutual inductor unit is larger at the larger electric current of line load, and low magnetic permeability instrument transformer is saturated cannot linear output time, gets energy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110382214.6A CN102497035B (en) | 2011-11-25 | 2011-11-25 | System and method for induction electricity taking of high-voltage line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110382214.6A CN102497035B (en) | 2011-11-25 | 2011-11-25 | System and method for induction electricity taking of high-voltage line |
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| CN102497035A CN102497035A (en) | 2012-06-13 |
| CN102497035B true CN102497035B (en) | 2014-04-02 |
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| CN109510325A (en) * | 2018-12-21 | 2019-03-22 | 江苏南瑞恒驰电气装备有限公司 | A kind of circulation self-contained electric system for GIL on-line monitoring |
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| CN201611803U (en) * | 2010-01-26 | 2010-10-20 | 江苏博润电气科技有限公司 | Inductive power taking device of high-voltage cable current transformer |
| CN202334013U (en) * | 2011-11-25 | 2012-07-11 | 天津市翔晟远电力设备实业有限公司 | High-voltage line induction power taking device |
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