CN103475260A - Capacitive energy collecting converting device based on transformer substation field energy - Google Patents
Capacitive energy collecting converting device based on transformer substation field energy Download PDFInfo
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- CN103475260A CN103475260A CN2013104307207A CN201310430720A CN103475260A CN 103475260 A CN103475260 A CN 103475260A CN 2013104307207 A CN2013104307207 A CN 2013104307207A CN 201310430720 A CN201310430720 A CN 201310430720A CN 103475260 A CN103475260 A CN 103475260A
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Abstract
The invention discloses a capacitive energy collecting converting device based on transformer substation field energy. The device comprises a capacitive energy collecting converter and an electronic conditioning circuit. The capacitive energy collecting converter comprises an upper pole plate, a lower pole plate and a plurality of insulation supporting columns. The upper pole plate is a semi-sphere shell body. The lower pole plate is a circular flat plate. A semi-sphere shell hollow cavity of the upper pole plate corresponds to the lower pole plate. The semi-sphere shell plane of the upper pole plate is parallel to the lower pole plate. The upper pole plate and the lower pole plate are connected through the three insulation supporting columns. A leading wire is led out from each of the upper pole plate and the lower pole plate and is connected to the electronic conditioning circuit which comprises a rectifying circuit, a storage circuit and a voltage stabilizing feedback circuit which are connected in sequence. The device converts abundant field energy in a transformer substation to electricity energy to be provided for a wireless sensor network, and accordingly the problem of energy feeding of the wireless sensor network is fundamentally solved.
Description
Technical field
The present invention relates to a kind of energy collecting switch technology that is applied to high voltage substation, particularly a kind of condenser type energy collecting conversion equipment based on transformer station's electric field energy.
Background technology
Along with socioeconomic development, increasingly serious, the institutional contradiction of energy shortage problem, power industry also is faced with deep change---and intelligent grid becomes the core content of Future Development of Electric Power Industry.The core connotation of intelligent grid is to realize the integrated of novel information and mechanics of communication in each link of electric power system, and the sensing measurement technology of wherein system mode being carried out to Real-Time Monitoring is the most important technical foundation of intelligent grid.Real time monitoring network---the wireless sensor network formed by a large amount of distributed sensor nodes, can meet the requirement of sensing measurement technology and mechanics of communication simultaneously, be not only applicable to the industrial environment of the complicated harshness of environmental condition, difficult wiring, and be applicable to the power industry application scenarios such as measurement point is many, scope disperses that the low pressure of occasion is checked meter.Wireless sensor network is the important component part of the senior measurement system of intelligent grid, has become the study hotspot of current industrial quarters and academia.
Wireless sensor network has the outstanding advantages such as cost is low, power consumption is little, real-time is good, adaptation severe rugged environment, be the developing direction of following sensor technology, but its Power supply problem becomes its principal element further developed of restriction.Wireless senser adopts the supply power mode from charged pool usually, although the energy storage density of battery and useful life improve constantly, but still exist limited such as the energy supply life-span, need the energy supply defects such as recharge, volume and quality are larger, can not meet the demand for development of wireless sensor network fully.
The energy collecting switch technology is a kind of method that can fundamentally solve wireless sensor network node energy supply problem proposed in recent years, a kind of by collecting in surrounding environment other forms of energy (luminous energy, vibrational energy, heat energy, acoustic energy, electromagnetic energy etc.) and converting thereof into electric energy, for transducer and other electronic equipment provide safety, stable, efficiently, in theory without the electric energy supply technology of age limit.Energy collecting switch technology based on luminous energy is subject to the such environmental effects such as time, weather larger, limited the use of this technology, although in transformer station, the electric equipment vibration is larger, but the vibration gathering-device need closely be connected with vibration source, for insulation or security consideration, limit its application in transformer station, based on energy collecting technology such as the temperature difference and acoustic energy, because of energy source, hanged down the energy supply requirement that also can't meet wireless sensor network in transformer station.
In high voltage substation, electromagnetic energy is abundant, and 500kV transformer station measured data shows that its maximum field energy even can be up to 18kV/m, and abundant electric field energy provides application foundation for condenser type energy collecting switch technology.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of condenser type energy collecting conversion equipment based on transformer station's electric field energy is provided, this device is converted to electric energy by electric field energy abundant in high voltage substation and supplies with wireless sensor network, thereby fundamentally solves the Power supply difficult problem of wireless sensor network.
For achieving the above object, the present invention adopts following technical proposals:
A kind of condenser type energy collecting conversion equipment based on transformer station's electric field energy, comprise a condenser type energy collecting transducer and an electronics modulate circuit, described condenser type energy collecting transducer comprises upper and lower two-plate and some insulation columns, top crown is hemispherical housing, bottom crown is a circular flat board, the hemispherical Shell hollow cavity of top crown is corresponding with bottom crown, and hemispherical Shell plane and the bottom crown of top crown are parallel to each other, between upper and lower pole plate, by three insulation columns, be connected, upper and lower pole plate is drawn respectively a wire and is connected on the electronics modulate circuit; Described electronics modulate circuit comprises connected successively rectification circuit, memory circuit and voltage stabilizing feedback circuit.
The hemispherical Shell that described top crown is 304 stainless steels, bottom crown is HPb-62 brass plectane.
The radius of described upper and lower pole plate is 200mm.
Described bottom crown thickness is 2.5mm.
The thickness of described top crown is greater than bottom crown thickness.
The outer rim of the hemispherical Shell of described top crown arranges an edge, is evenly equipped with some boring corresponding with insulation column on edge.
Described insulation column is nylon material, is highly 200mm.
Described insulation column is provided with three.
Described rectification circuit is the diode single-phase rectification bridge, and memory circuit adopts ultracapacitor, and the voltage stabilizing feedback circuit adopts the electronics modulate circuit based on BQ25504.
The diode type of described diode single-phase rectification bridge is 1N4001, super capacitor adopts the 16V/1F alminium electrolytic condenser, connect the P6KE15CA voltage stabilizing didoe after super capacitor, connect the voltage stabilizing feedback circuit formed based on nanowatt level micro power-consumption chip BQ25504 after the P6KE15CA voltage stabilizing didoe, the output of voltage stabilizing feedback circuit has two-way, one tunnel connects the 3V rechargeable battery, and a road connects wireless sensor network and supplies with energy.
Voltage stabilizing feedback circuit output has two-way, its purpose of design to be that wireless sensor network work is divided into emission phase and rest period period, and main power consumption is the emission phase, and be all rest period groundwork period of wireless sensor network.Adopt the purpose of two-way output to be when wireless sensor network is in hibernation, comparatively abundance can be by stored energy in rechargeable battery for the energy that the energy collecting conversion equipment is collected, when wireless sensor network in emission during the phase, its power consumption is larger, when now if energy collecting conversion equipment harvest energy is not enough to meet its emitted energy demand, rechargeable battery can play a role, and guarantees efficient, the safe and reliable work of wireless sensor network.
Cardinal principle is as follows:
High voltage substation inner high voltage equipment is numerous, and particularly on transformer high-voltage wire outlet terminal and high voltage bus, voltage is higher, around it, will inevitably form very strong power frequency high field, so transformer station's internal electric field energy is abundant and direction of an electric field is also comparatively complicated.Be placed in the condenser type energy collecting transducer of power frequency highfield, according to the electrostatic induction principle, on two metal electrode boards, charge inducing will occur, produce electrical potential difference between metal electrode board, and electrical potential difference changes with the variation of external electrical field.When external electrical field is power frequency electric field, the metal polar plate two ends will produce the power frequency electromotive force, can be considered alternating-current voltage source, realize the conversion of electric field energy to electric energy.Connect modulate circuit after condenser type energy collecting transducer after, by measures such as rectification, storage, voltage stabilizings, the power storage that condenser type energy collecting transducer is collected, in the energy storage devices such as ultracapacitor or battery, is the wireless senser load supplying.
The critical component that condenser type energy collecting transducer is collected as electric field energy, determined charge inducing and harvest energy under certain external electric field condition the number, condenser type energy collecting converter topologies and riding position etc. all have considerable influence to energy collecting efficiency.Transformer station's internal electric field energy is comparatively complicated, and direction may come from all directions, so the energy collecting topological structure that this patent has proposed dome-type can take full advantage of the electric field energy in transformer station.Another key technology of energy collecting conversion equipment is electric energy conditioning and storage means.Here needing the output voltage of condenser type energy collecting transducer conditioning is the wireless senser desired standard output voltage that works, and this technology relates to the comprehensive coordination effect of several parts such as rectification, copped wave, power storage, voltage stabilizing output.It is generally limited utilizing the electric energy that space electric field can be collected, and the design of too complicated modulate circuit will consume considerable energy, directly affect energy collecting efficiency, so this patent proposes and designed the electric energy modulate circuit of micro-power consumption.
The invention has the beneficial effects as follows, this condenser type energy collecting conversion device structure is simple, safe and reliable to operation, useful life with theory unlimited, can take full advantage of abundant electric field energy in high voltage substation, without electric equipment and configuration in change transformer station, without additional supply, the manual maintenance expense reduces greatly, and development cost is cheap than other energy collecting switch technologies.This device is in normal operation on not impact of system, and application scenario is not subject to the such environmental effects such as weather, weather, in following intelligent grid and Intelligent transformer station, has broad application prospects.
The accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present invention;
Fig. 2 is condenser type energy collecting transducer top crown front view;
Fig. 3 is condenser type energy collecting transducer top crown vertical view;
Fig. 4 is condenser type energy collecting transducer bottom crown vertical view;
Fig. 5 is the modulate circuit schematic diagram of appearance formula energy collecting conversion equipment;
Fig. 6 is the modulate circuit analogous diagram of appearance formula energy collecting conversion equipment;
Wherein 1. top crowns, 2. bottom crown, 3. insulation column.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Shown in Fig. 1, Fig. 2 and Fig. 3, dome-type top crown 1 according to the upper size design electric capacity energy collecting transducer marked of figure, the radius of dome-type top crown 1 is 20cm therein, adopt 304 stainless steels to make, thickness is 0.4mm, for ease of three eradication edge pillars 3, upper and lower pole plate 1,2 is carried out to bracing reinforcement, outer rim in top crown dome-type structure increases by an edge, the outer rim radius is 21.2cm, be uniformly distributed the boring of 3 diameter 8.5mm on the outer rim stainless steel, and with the M8 nut with fixed insulation pillar 3.The bottom crown vertical view that Fig. 4 is condenser type energy collecting transducer, designed by the size marked on this figure, adopts HPb-62 brass material, and thickness is 2.5mm.The thickness of bottom crown 2 will have two: one apparently higher than the reason of top crown 1, and top crown dome-type structure adopts the material of thinner thickness more easily to process, the 2nd, bottom crown 2 thickness increase, quality obviously increases, and the center of gravity of this energy collecting transducer is reduced to the stability that can effectively improve device.
Figure 5 shows that the modulate circuit schematic diagram of condenser type energy collecting conversion equipment, this circuit can be divided into three parts as we can see from the figure: rectification, storage and voltage stabilizing feedback circuit.What wherein rectification circuit adopted is the single-phase rectification bridge that the 1N4001 diode forms, and storage capacitance adopts the aluminium electrolytic capacitor of 16V/1F to receive on the Ustore binding post, the charge-trapping at energy collecting transducer two ends can be got up, and is stored on electric capacity.Termination P6KE15CA bi-directional voltage stabilizing diode after electric capacity, its purpose is for preventing the too high initiation potential of storage capacitor both end voltage, the maximum power of this bi-directional voltage stabilizing pipe can reach 500W, and the power that front end condenser type energy collecting transducer is collected is very little, do not reach the maximum power of diode fully, meet the circuit design demand.Adopt the voltage stabilizing circuit formed based on nanowatt level micro power-consumption chip BQ25504 in the voltage stabilizing feedback circuit, the output of circuit adopts two-way output, and a road connects the 3V rechargeable battery, and a road connects wireless sensor network.Wherein adopt the stand-by power supply of energy-storage battery as whole circuit.When the wireless senser networking, during in resting state, its power consumption is very low, and the energy that condenser type energy collecting conversion equipment is collected can temporarily be stored on energy-storage battery; When wireless sensor network, during in emission state, its power consumption increases, if the energy shortage that now condenser type energy collecting conversion equipment is collected is when meeting circuit working, energy-storage battery will play a role.The sort circuit design can guarantee reliability and the fail safe of whole system work.The characteristics of this modulate circuit are low in energy consumption, and the collection of energy ability is outstanding, and the voltage that is transported to the storage capacitor two ends when electric capacity energy collecting transducer is during higher than 330mV, and circuit just starts startup work.
Condenser type energy collecting conversion equipment modulate circuit schematic diagram shown in Fig. 5 is built to simulation model, can obtain the simulation result shown in Fig. 6.From simulation result, can see, this modulate circuit can steady operation.The output voltage U out of circuit can be stabilized in the 3.1V left and right, the voltage of storage battery also finally is stabilized in the 3.1V left and right, and input voltage Uin circuit when reaching 330mV can start work, circuit response time is very short, but and input voltage Uin remain under lower magnitude of voltage just steady operation of circuit.From simulation result, can see, when input energy in outside is comparatively sufficient, output circuit will be the battery storage energy, the voltage at Ubat two ends also constantly slowly raises, when higher than 3.1V, will start as the energy-storage battery charging, the output voltage U out of circuit is basicly stable, and in the 3V left and right, the voltage regulation result of circuit is very obvious, can meet the electric energy conditioning requirement of energy collecting conversion.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. the condenser type energy collecting conversion equipment based on transformer station's electric field energy, it is characterized in that, comprise a condenser type energy collecting transducer and an electronics modulate circuit, described condenser type energy collecting transducer comprises upper and lower two-plate and some insulation columns, top crown is hemispherical housing, bottom crown is a circular flat board, the hemispherical Shell hollow cavity of top crown is corresponding with bottom crown, and hemispherical Shell plane and the bottom crown of top crown are parallel to each other, between upper and lower pole plate, by three insulation columns, be connected, upper and lower pole plate is drawn respectively a wire and is connected on the electronics modulate circuit; Described electronics modulate circuit comprises connected successively rectification circuit, memory circuit and voltage stabilizing feedback circuit.
2. device as claimed in claim 1, is characterized in that, the hemispherical Shell that described top crown is 304 stainless steels, and bottom crown is HPb-62 brass plectane.
3. device as claimed in claim 1 or 2, is characterized in that, the radius of described upper and lower pole plate is 200mm.
4. device as claimed in claim 1, is characterized in that, described bottom crown thickness is 2.5mm.
5. device as claimed in claim 1, is characterized in that, the thickness of described top crown is greater than bottom crown thickness.
6. device as claimed in claim 1, is characterized in that, the outer rim of the hemispherical Shell of described top crown arranges an edge, is evenly equipped with some boring corresponding with insulation column on edge.
7. device as claimed in claim 1, is characterized in that, described insulation column is nylon material, is highly 200mm.
8. device as described as claim 1 or 7, is characterized in that, described insulation column is provided with three.
9. device as claimed in claim 1, is characterized in that, described rectification circuit is the diode single-phase rectification bridge, and memory circuit adopts ultracapacitor, and the voltage stabilizing feedback circuit adopts the electronics modulate circuit based on BQ25504.
10. device as claimed in claim 9, it is characterized in that, the diode type of described diode single-phase rectification bridge is 1N4001, super capacitor adopts the 16V/1F alminium electrolytic condenser, connect the P6KE15CA voltage stabilizing didoe after super capacitor, connect the voltage stabilizing feedback circuit formed based on nanowatt level micro power-consumption chip BQ25504 after the P6KE15CA voltage stabilizing didoe, the output of voltage stabilizing feedback circuit has two-way, one tunnel connects the 3V rechargeable battery, and a road connects wireless sensor network and supplies with energy.
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Cited By (6)
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| CN104283322A (en) * | 2014-11-03 | 2015-01-14 | 国家电网公司 | Power transformation equipment comprehensive state wired monitoring system based on passive sensing |
| CN104283323A (en) * | 2014-11-03 | 2015-01-14 | 国家电网公司 | Power transformation equipment comprehensive state wireless monitoring system based on passive sensing |
| CN106887898A (en) * | 2017-03-31 | 2017-06-23 | 广东电网有限责任公司电力科学研究院 | A kind of three-phase high-voltage transmission line of electricity monitors equipment energy supply method and system on-line |
| CN109494886A (en) * | 2018-12-28 | 2019-03-19 | 国网山西省电力公司晋中供电公司 | A kind of wireless energy supply system based on electric field induction flat plate array |
| CN111064386A (en) * | 2019-12-31 | 2020-04-24 | 武汉轻工大学 | Paddle and piezoelectric capacitive hydroelectric generation flood bank |
| WO2020258774A1 (en) * | 2019-06-24 | 2020-12-30 | 深圳大学 | Electrostatic power generation device utilizing lunar dust |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104283322A (en) * | 2014-11-03 | 2015-01-14 | 国家电网公司 | Power transformation equipment comprehensive state wired monitoring system based on passive sensing |
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| CN106887898A (en) * | 2017-03-31 | 2017-06-23 | 广东电网有限责任公司电力科学研究院 | A kind of three-phase high-voltage transmission line of electricity monitors equipment energy supply method and system on-line |
| CN109494886A (en) * | 2018-12-28 | 2019-03-19 | 国网山西省电力公司晋中供电公司 | A kind of wireless energy supply system based on electric field induction flat plate array |
| WO2020258774A1 (en) * | 2019-06-24 | 2020-12-30 | 深圳大学 | Electrostatic power generation device utilizing lunar dust |
| CN111064386A (en) * | 2019-12-31 | 2020-04-24 | 武汉轻工大学 | Paddle and piezoelectric capacitive hydroelectric generation flood bank |
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