CN109067006A - Transmission line of electricity power extraction system based on impulse modulation inversion - Google Patents
Transmission line of electricity power extraction system based on impulse modulation inversion Download PDFInfo
- Publication number
- CN109067006A CN109067006A CN201810756732.1A CN201810756732A CN109067006A CN 109067006 A CN109067006 A CN 109067006A CN 201810756732 A CN201810756732 A CN 201810756732A CN 109067006 A CN109067006 A CN 109067006A
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- Prior art keywords
- power
- transmission line
- impulse modulation
- electricity
- control
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Inverter Devices (AREA)
Abstract
The transmission line of electricity power extraction system based on impulse modulation inversion that the invention discloses a kind of, the power extraction in overhead transmission line ground wire is come out using electromagnetic induction coupled modes, power conversion is carried out after ac filter and transformation isolation, power conversion part uses rectification-secondary rectification scheme of inversion-rectification, AC power source is converted into stable dc power supply using pulse width modulated inverter technology and commutation technique, the system can be applied to maintenance of overhead transmission line equipment etc. for electrical domain, required DC power supply can be provided according to demand, it is easily adjusted with DC voltage, ripple is small, stable output power, it is small in size, the advantages that light-weight.
Description
Technical field
It is the present invention relates to power transmission lines overhauling equipment power supply technique field, in particular to a kind of based on impulse modulation inversion
Transmission line of electricity power extraction system.
Background technique
With the rapid development of the national economy, state and society to power supply enterprise's transmission of electricity, distribution, power supply reliability requirement
Higher and higher, construction sturdy power grid, smart grid have become urgent need.To transmission line of electricity implementing monitoring, transmission of electricity is grasped in real time
The various operating parameters of route are to realize the premise of Diagnostic Examination And Repair of Electric Power Facilities, and build an important composition of smart grid
Part.Most of equipment for power transmission and distribution are remote, and working environment is severe, often by various artificial destructions (such as theft electric power
Facility etc.) or natural calamity attack (such as storm, icing, pollution flashover), in history also once repeatedly occur equipment for power transmission and distribution fall
The major accident of rod disconnection brings weight huge economic loss and extremely undesirable social influence to country and electric power enterprise.
For this purpose, power supply enterprise is the safety and stability reliability service for ensuring transmission and distribution network, will put into every year a large amount of manpower,
Material resources, financial resources are supported and are ensured.Throughout the year no matter blowing and raining, heat tremble with fear day will regular irregular on-the-spot make an inspection tour dimension
Shield.For be located in it is unfrequented lofty mountains and steep hills, the grid equipment in grassland lake, also to carry out special flight boat and patrol.
The complexity of transmission system increases and protection increases with monitoring device, and the D.C. power requirement of route midway increases
Greatly, system power supply is more demanding to continual power supply reliability.The common power supply mode of on-line condition monitoring equipment has at present:
Solar powered, storage battery power supply, laser powered sensor, capacitive divider power supply, ultrasonic wave power supply, mutual inductance energy supply etc..These power supplies
All more or less there are many disadvantages in mode.Due to the maturation of technology, the power supply mode of solar energy is at present in condition monitoring system
Using more, but its carrying load ability is limited, influences vulnerable to weather, and need long term maintenance；Single battery energy supply structure letter
It is singly easily achieved, but its restricted lifetime, needs periodic replacement battery, be not able to satisfy long-term running condition；Laser power supply output
Voltage ripple is smaller, and noise is low, is not easily susceptible to the interference of extraneous other factors, but this method also will receive laser output power
Limitation, the especially influence of photocell transfer efficiency increases the difficulty and use cost of circuit design；Capacitive divider supplies
It can design simply, be easily obtained, but be easy to be influenced by factors such as temperature, stray capacitance, interference, electromagnetic compatibilities；Ultrasonic wave supplies
Although can be a kind of energy-provision way that comparison is new, there is also high equipment cost, the problems such as transfer efficiency of converter is low, so
The degree of real functionization has not been reached yet in this method, still needs further to study.
Summary of the invention
It is a kind of based on the defeated of impulse modulation inversion the purpose of the present invention is designing to solve defect existing in the prior art
Electric line power extraction system is mentioned electric energy using electromagnetic induction coupled modes under the premise of not disconnecting earth wire of power transmission line
It takes, and DC power supply is converted for AC energy using pulse width modulated inverter and commutation technique, set using with power transmission lines overhauling
Available electrical domain can provide required DC power supply according to demand, there is DC voltage easily to adjust, ripple is small, and output power is steady
It is fixed, it is small in size, it is light-weight the advantages that.
The transmission line of electricity power extraction system based on impulse modulation inversion that the invention discloses a kind of, including filtering isolation are single
Member, power conversion unit and control processing unit；
The filtering isolated location is system input；
The alternating current for filtering isolated location output is converted to direct current by the power conversion unit；
The control processing unit is system control core, control to output voltage and passes through detection input voltage signal
Implement system overvoltage protection.
The filtering isolated location includes annular magnet coil, ac filter component and transformer；
The annular magnet coil is coupled with overhead power transmission ground wire, and realization system is once isolated with aerial earth wire；
The ac filter component is filtered input AC electricity；
The transformer is AC transformer, is exported induced electromotive force transformation by transformer, realizes the subsequent list of system
Member and aerial earth wire secondary isolation.
The power conversion unit successively includes rectifier, DC filtering component 1, impulse modulation inverter, secondary rectification
Device, DC filtering component 2；
The rectifier is single-phase uncontrollable rectifier bridge, and it is straight that the AC rectification for filtering isolated location output is become pulsation
Galvanic electricity；
The DC filtering component 1, filters out the alternating component in Rectified alternating current；
The impulse modulation inverter is made of power switch tube, is high-frequency impulse formula alternating current, function by DC inverter
The conducting and shutdown suspension control signal control of rate switching tube, can control output voltage size by control signal；
The secondary rectifier is single-phase semi-bridge rectification circuit, and the high frequency pulse AC electric rectification that inversion is generated is at direct current
Electricity；
The DC filtering component 2 filters out the alternating component in the direct current of secondary rectifier output.
The control processing unit, as feedback signal, generates arteries and veins using pid algorithm by acquisition testing output voltage values
The control signal of power switch tube in modulated inverter realizes the control to output voltage；Control processing unit also acquires inspection
It surveys input voltage signal and implements system overvoltage protection.
The utility model has the advantages that compared with prior art, the present invention the invention has the following advantages that
1, the transmission line of electricity power extraction system proposed by the invention based on impulse modulation inversion, using annular electromagnetic
Circle and transformer two-stage isolation technology, while input ac power is pre-processed using ac filter component, it can be effective
The influence to system such as voltage jump, surge in transmission line of electricity is reduced, system self-protection ability is improved, stablizes output direct current
Power supply quality is improved in source.
2, the transmission line of electricity power extraction system proposed by the invention based on impulse modulation inversion, utilizes rectification-inversion-
The secondary commutation technique of rectification can effectively reduce DC power supply fluctuation, reduce ripple voltage, improve power supply stability, simultaneously
The technology can substantially reduce component volume, reduce system weight.
3, the transmission line of electricity power extraction system proposed by the invention based on impulse modulation inversion, it is inverse using pulsewidth modulation
Change technology, can according to acquisition output voltage feedback signal, by the pulse width modulation controlled inverter power switch device conductive time,
To accurately control output voltage.
4, the transmission line of electricity power extraction system proposed by the invention based on impulse modulation inversion, is made using microprocessor
Input voltage can be monitored, prevents over-voltage to system while microprocessor control exports DC power supply for system control core
It damages, effectively improves system self-protection ability.
5, the transmission line of electricity power extraction system proposed by the invention based on impulse modulation inversion, by system control technique
It is organically combined with power conversion technology, efficiently solves the problems, such as transmission line faultlocating equipment power supply, detection greatly improved
Equipment power supply quality realizes important breakthrough in transmission line of electricity power extraction field.
Detailed description of the invention
Fig. 1 is the transmission line of electricity power extraction system schematic based on impulse modulation inversion.
Specific embodiment
The present invention is further explained with reference to the accompanying drawing.
It is proposed by the invention based on the transmission line of electricity power extraction system structure of impulse modulation inversion as shown in Figure 1, system
Including filtering isolated location, power conversion unit, control processing unit.
It filters in isolated location, by overhead transmission line wire loop can be entered wherein using two semi-circular electromagnetic coils, it is real
Existing transmission line of electricity is isolated with the first secondary circuit of system, while having alternating current to flow through in ground wire, according to electromagnetic induction principle in ring
Induced electromotive force is generated in shape electromagnetic coil, so as to take out AC energy in route.Utilize filter inductance and filter capacitor
The filtering unit of composition is filtered induced electromotive force, can effectively reduce high pressure of taking advantage of a situation in route, surge etc. to system
Impact.It recycles transformer to carry out transformation to alternating current, while realizing that input terminal is isolated with the circuit of power conversion unit.
In power conversion unit, input AC electricity is carried out using the single-phase uncontrollable rectifier bridge of diode composition primary whole
Stream, there are still fluctuations for the direct current after rectification, and voltage swing is uncontrollable.To reduce DC power supply fluctuation, and realize output
DC voltage is controllable, using by set of power switches at pulse width modulated inverter circuit will primary rectification output direct current it is inverse
Pulse ac electricity, the controlled control signal provided with control processing unit of the exchange electronic pulse width are provided.Recycle two poles
Pulse ac electric rectification is become DC power supply by the single-phase semi-bridge rectification circuit of pipe composition, and the DC power supply stability is high, voltage
Controllably.
To realize that the control to inverter circuit is exported using microprocessor as system control core by acquisition testing
Voltage value generates the control signal of device for power switching in inverter circuit using pid algorithm, to can realize as feedback signal
Control to output voltage, while collected input voltage signal can be handled for processor, judge voltage whether
System receives in range, if it exceeds incoming line can be cut off in system range of receiving, realizes that the automation to system is protected.
Claims (4)
1. a kind of transmission line of electricity power extraction system based on impulse modulation inversion, it is characterised in that: including filtering isolated location,
Power conversion unit and control processing unit；
The filtering isolated location is system input；
The alternating current for filtering isolated location output is converted to direct current by the power conversion unit；
The control processing unit is system control core, control to output voltage and is implemented by detection input voltage signal
System overvoltage protection.
2. a kind of transmission line of electricity power extraction system based on impulse modulation inversion according to claim 1, feature exist
In: the filtering isolated location includes annular magnet coil, ac filter component and transformer；
The annular magnet coil is coupled with overhead power transmission ground wire, and realization system is once isolated with aerial earth wire；
The ac filter component is filtered input AC electricity；
The transformer is AC transformer, is exported induced electromotive force transformation by transformer, realize system subsequent cell with
Aerial earth wire secondary isolation.
3. a kind of transmission line of electricity power extraction system based on impulse modulation inversion according to claim 1 or 2, feature
Be: the power conversion unit successively include rectifier, DC filtering component 1, impulse modulation inverter, secondary rectifier,
DC filtering component 2；
The rectifier is single-phase uncontrollable rectifier bridge, and the AC rectification for filtering isolated location output is become pulsating direct current
Electricity；
The DC filtering component 1, filters out the alternating component in Rectified alternating current；
The impulse modulation inverter is made of power switch tube, is high-frequency impulse formula alternating current by DC inverter, and power is opened
The conducting and shutdown suspension control signal control for closing pipe, can control output voltage size by control signal；
The secondary rectifier is single-phase semi-bridge rectification circuit, and the high frequency pulse AC electric rectification that inversion is generated is at direct current；
The DC filtering component 2 filters out the alternating component in the direct current of secondary rectifier output.
4. a kind of transmission line of electricity power extraction system based on impulse modulation inversion according to claim 3, feature exist
In: the control processing unit, as feedback signal, generates impulse modulation using pid algorithm by acquisition testing output voltage values
The control signal of power switch tube in inverter realizes the control to output voltage；Processing unit also acquisition testing is controlled to input
Voltage signal implements system overvoltage protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756732.1A CN109067006A (en) | 2018-07-11 | 2018-07-11 | Transmission line of electricity power extraction system based on impulse modulation inversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756732.1A CN109067006A (en) | 2018-07-11 | 2018-07-11 | Transmission line of electricity power extraction system based on impulse modulation inversion |
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| Publication Number | Publication Date |
|---|---|
| CN109067006A true CN109067006A (en) | 2018-12-21 |
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ID=64815865
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756732.1A Pending CN109067006A (en) | 2018-07-11 | 2018-07-11 | Transmission line of electricity power extraction system based on impulse modulation inversion |
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| Country | Link |
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| CN (1) | CN109067006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110179489A (en) * | 2019-06-13 | 2019-08-30 | 上海联影医疗科技有限公司 | High-pressure generating circuit and CT scan equipment |
| CN113960952A (en) * | 2021-12-22 | 2022-01-21 | 四川承天翼航空科技有限公司 | Contactless electromagnetic control and execution system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201130909Y (en) * | 2007-11-13 | 2008-10-08 | 青岛经济技术开发区创统科技发展有限公司 | Removable shore power supply |
| CN101862881A (en) * | 2010-06-11 | 2010-10-20 | 广东火电工程总公司 | Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof |
| CN101913015A (en) * | 2010-07-29 | 2010-12-15 | 薛家祥 | Thin double-wire digital soft switch inverter welding power source system and control method thereof |
| CN101986100A (en) * | 2010-07-20 | 2011-03-16 | 武汉大学 | Online monitoring system for galloping and wind deviation of power transmission line lead based on differential global positioning system (GPS) |
| CN204046283U (en) * | 2014-08-07 | 2014-12-24 | 国家电网公司 | 10kV distribution network line electromagnetic induction power taking multiple-channel output device |
| CN204068435U (en) * | 2013-11-20 | 2014-12-31 | 国网河南省电力公司驻马店供电公司 | The direct electricity getting device of a kind of transmission line |
| CN104485756A (en) * | 2014-12-04 | 2015-04-01 | 珠海许继电气有限公司 | Electricity picking device for high-voltage power transmission line |
| CN104979853A (en) * | 2015-07-10 | 2015-10-14 | 国家电网公司 | Power transmission line sectioned insulating overhead ground wire multi-point power accessing system based on electromagnetic induction |
| CN106549589A (en) * | 2016-12-30 | 2017-03-29 | 广东电网有限责任公司清远供电局 | The electricity getting device of overhead transmission line |
| CN206135433U (en) * | 2016-11-01 | 2017-04-26 | 武汉安耐齐科技有限公司 | Get electric installation based on exchange insulating ground wire of overhead transmission line |
-
2018
- 2018-07-11 CN CN201810756732.1A patent/CN109067006A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201130909Y (en) * | 2007-11-13 | 2008-10-08 | 青岛经济技术开发区创统科技发展有限公司 | Removable shore power supply |
| CN101862881A (en) * | 2010-06-11 | 2010-10-20 | 广东火电工程总公司 | Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof |
| CN101986100A (en) * | 2010-07-20 | 2011-03-16 | 武汉大学 | Online monitoring system for galloping and wind deviation of power transmission line lead based on differential global positioning system (GPS) |
| CN101913015A (en) * | 2010-07-29 | 2010-12-15 | 薛家祥 | Thin double-wire digital soft switch inverter welding power source system and control method thereof |
| CN204068435U (en) * | 2013-11-20 | 2014-12-31 | 国网河南省电力公司驻马店供电公司 | The direct electricity getting device of a kind of transmission line |
| CN204046283U (en) * | 2014-08-07 | 2014-12-24 | 国家电网公司 | 10kV distribution network line electromagnetic induction power taking multiple-channel output device |
| CN104485756A (en) * | 2014-12-04 | 2015-04-01 | 珠海许继电气有限公司 | Electricity picking device for high-voltage power transmission line |
| CN104979853A (en) * | 2015-07-10 | 2015-10-14 | 国家电网公司 | Power transmission line sectioned insulating overhead ground wire multi-point power accessing system based on electromagnetic induction |
| CN206135433U (en) * | 2016-11-01 | 2017-04-26 | 武汉安耐齐科技有限公司 | Get electric installation based on exchange insulating ground wire of overhead transmission line |
| CN106549589A (en) * | 2016-12-30 | 2017-03-29 | 广东电网有限责任公司清远供电局 | The electricity getting device of overhead transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110179489A (en) * | 2019-06-13 | 2019-08-30 | 上海联影医疗科技有限公司 | High-pressure generating circuit and CT scan equipment |
| CN113960952A (en) * | 2021-12-22 | 2022-01-21 | 四川承天翼航空科技有限公司 | Contactless electromagnetic control and execution system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |