CN208904661U - A kind of controlling device for charge uneven between three-phase voltage phase sequence - Google Patents
A kind of controlling device for charge uneven between three-phase voltage phase sequence Download PDFInfo
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- CN208904661U CN208904661U CN201821834234.6U CN201821834234U CN208904661U CN 208904661 U CN208904661 U CN 208904661U CN 201821834234 U CN201821834234 U CN 201821834234U CN 208904661 U CN208904661 U CN 208904661U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The utility model discloses a kind of controlling devices for charge uneven between three-phase voltage phase sequence, including single-chip microcontroller, close area's control host, driving circuit and commutation executing agency, the single-chip microcontroller is wirelessly connected by GPRS antenna closes area's control host, single-chip microcontroller is also connected with driving circuit, the utility model can reliably be applied in three-phase commutation device, to solve the imbalance problem of the alternate load of low-voltage power supply system three.The commutation technology of the present embodiment uses diode as electronic power switch, control circuit is simplified, while also improving equipment dependability, is lost extremely low, without additional heat circuit, it is truly realized commutating without arcing, can greatly extend the service life of magnetic latching relay and auxiliary relay, and at low cost, switching speed is fast, commutation is reliable, has high safety, is conducive to the large-scale promotion on power distribution network.
Description
Technical field
It is specifically a kind of to be controlled for uneven charge between three-phase voltage phase sequence the utility model relates to technical field of electric power
Manage device.
Background technique
With the development of electric system, the three-phase imbalance problem of low-voltage network is more and more prominent, in high-voltage fence,
Because load is typically all three-phase production load, three-phase load is in a basic balance, but in low voltage electric network, be three-phase productive power with
The supply network of single-phase appliance load mixing electricity consumption, and Electricity customers are based on single-phase residential customers in distribution, so single-phase
The case where load accesses occupies very big ratio in entire power supply system, and power grid is difficult to effectively when being laid out by single-phase illumination
User is average to be distributed on A, B, C three-phase, and because condition and fund limit, the extension of single phase low voltage power supply line is too long, is added
The odjective causes such as the asynchronism of the uncontrollable increase-volume of single-phase user, the access of great power single phase load and single-phase load electricity consumption,
Easily cause three-phase load distribution in power distribution station unbalanced in power distribution network, this just gives the safe and stable of low-voltage network and warp
Ji operation brings biggish negative effect
At present three-phase load unbalance aiming at the problem that, there are many solution, commonly use and relatively effective method be
Load progress Phase-switching is achieved the purpose that into three-phase load equilibrium by switch.Phase-switching switch is the key that the technology portion
Part, the technical measures generallyd use mainly include using mechanical switch, exchange tentaculum or combination switch these three modes, wherein comparing
More advanced is combination switch commutation mode.But due to combination switch commutation mode used it is silicon-controlled, equipment cost compared with
Height, and after introducing controllable silicon drive circuit, it needs accurately to realize zero cross fired, otherwise there are still starting the arc phenomenon, reduce
The global reliability of equipment.
Therefore, how the economical and reliable imbalance for solving the alternate load of low-voltage power supply system three just becomes urgently to be resolved
The problem of.
Utility model content
The purpose of this utility model is to provide a kind of controlling device for charge uneven between three-phase voltage phase sequence, with
Solve the problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of controlling device for charge uneven between three-phase voltage phase sequence, including single-chip microcontroller, conjunction area control host, drive
Dynamic circuit and commutation executing agency, the single-chip microcontroller is wirelessly connected by GPRS antenna closes area's control host, and single-chip microcontroller is also connected with
Driving circuit, the driving circuit issue driving signal and drive commutation executing agency, and commutation executing agency includes that magnetic keeps relay
Device KA1, magnetic latching relay KB1, magnetic latching relay KC1, auxiliary relay KA2, auxiliary relay KB2, auxiliary relay
KC2, diode D1, diode D2 and diode D3, magnetic latching relay KA1, magnetic latching relay KB1, magnetic latching relay
KC1, auxiliary relay KA2, auxiliary relay KB2 and auxiliary relay KC2 coil be all connected with driving circuit, magnetic keeps relay
The anode of contact one end connection diode D1 of device KA1 and the A phase of three-phase alternating current, the contact of magnetic latching relay KA1 are another
End connection user load, the contact of the cathode connection magnetic latching relay KA2 of diode D1, the contact of magnetic latching relay KA2
The other end connects user load, the anode of contact one end connection diode D2 of magnetic latching relay KB1 and the B of three-phase alternating current
Phase, the contact other end of magnetic latching relay KB1 connect user load, and the cathode of diode D2 connects magnetic latching relay KB2
Contact, the contact other end of magnetic latching relay KB2 connects user load, contact one end connection of magnetic latching relay KC1
The contact other end of the anode of diode D3 and the C phase of three-phase alternating current, magnetic latching relay KC1 connects user load, two poles
The contact of the cathode connection magnetic latching relay KC2 of pipe D3, the contact other end of magnetic latching relay KC2 connect user load,
User load is also connected with zero curve N.
Further technical solution as the utility model: the single-chip microcontroller is 32 single-chip microcontrollers of ARM.
Further technical solution as the utility model: the diode D1 is rectifier diode.
Further technical solution as the utility model: the diode D2 is rectifier diode.
Further technical solution as the utility model: the diode D3 is rectifier diode.
Compared with prior art, the utility model has the beneficial effects that the utility model can reliably be applied in three-phase
In commutation device, to solve the imbalance problem of the alternate load of low-voltage power supply system three.The commutation technology of the present embodiment uses two
Pole pipe simplifies control circuit as electronic power switch, while also improving equipment dependability, and loss is extremely low, without additional
Radiating circuit is truly realized commutating without arcing, can greatly extend the service life of magnetic latching relay and auxiliary relay, and
At low cost, switching speed is fast, and commutation is reliable, has high safety, is conducive to the large-scale promotion on power distribution network.
Detailed description of the invention
Fig. 1 is the integrated circuit figure of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1: referring to Fig. 1, a kind of controlling device for charge uneven between three-phase voltage phase sequence, including ARM
32 single-chip computer control systems and three tunnel commutation executing agencies.
32 single-chip computer control systems of ARM include 32 single-chip microcontrollers of ARM, driving circuit, 32 single-chip microcontrollers sendings of ARM
Commutation order is sent to driving circuit, and driving circuit issues driving signal and drives commutation executing agency.
Commutation executing agency connect with phase line, including three independent phase sequence circuits, each phase sequence circuit include one
Magnetic latching relay, a diode, an auxiliary relay, diode connect with auxiliary relay after with magnetic latching relay
It is in parallel.
After reaching commutation condition, platform area control host is led to by 32 single-chip computer control systems of GPRS and ARM
News, then 32 single-chip computer control systems of ARM make movement.
Three tunnel commutation executing agency output ends connect together, and are then attached to user load.
Embodiment 2, on the basis of embodiment 1, specific phase sequence circuit is as shown in Figure 1: for being switched to B phase from A phase
Illustrate commutation process.Driving signal is issued in A phase current negative half period to relay KA2 coil, makes the touching of auxiliary relay KA2
Point closure does not have electric current to pass through at this time due to the unilateral conduction of diode D1 after the contact closure of auxiliary relay KA2.In A
Driving signal is issued when phase current positive half cycle to relay KA1 coil, disconnects magnetic latching relay KA1, and issues driving letter
Number arrive relay KB2 coil, make the contact closure of auxiliary relay KB2, at this time supply path be A phase-D1-KA2- user bear
It carries；A phase differs 120 degree with B phase in electrical angle, is converted on the time about 6.67mS, about A phase positive half cycle 8.33mS it
Afterwards, when the current potential of B phase will be above the current potential of A phase, diode D1 ends D2 conducting at this time, will be automatically by A phase to the power supply of load
Go to B phase；Driving signal is issued in the positive half period of B phase current to relay KB1 coil, makes magnetic latching relay KB1's
Contact closure completes the conversion that the power supply of A phase line is powered to B phase line, does not power off in conversion process, without phenomenon of arc discharge.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of controlling device for charge uneven between three-phase voltage phase sequence, including single-chip microcontroller, conjunction area control host, driving
Circuit and commutation executing agency, which is characterized in that the single-chip microcontroller is wirelessly connected by GPRS antenna closes area's control host, monolithic
Machine is also connected with driving circuit, and the driving circuit issues driving signal and drives commutation executing agency, and commutation executing agency includes magnetic
It is guard relay KA1, magnetic latching relay KB1, magnetic latching relay KC1, auxiliary relay KA2, auxiliary relay KB2, auxiliary
Relay KC2, diode D1, diode D2 and diode D3 are helped, magnetic latching relay KA1, magnetic latching relay KB1, magnetic are protected
The coil for holding relay KC1, auxiliary relay KA2, auxiliary relay KB2 and auxiliary relay KC2 is all connected with driving circuit, magnetic
The anode of contact one end connection diode D1 of guard relay KA1 and the A phase of three-phase alternating current, magnetic latching relay KA1's
The contact other end connects user load, the contact of the cathode connection magnetic latching relay KA2 of diode D1, magnetic latching relay
The contact other end of KA2 connects user load, the anode and three-phase of contact one end connection diode D2 of magnetic latching relay KB1
The B phase of alternating current, the contact other end of magnetic latching relay KB1 connect user load, and the cathode connection magnetic of diode D2 is kept
The contact other end of the contact of relay KB2, magnetic latching relay KB2 connects user load, the contact of magnetic latching relay KC1
One end connects the anode of diode D3 and the C phase of three-phase alternating current, and the contact other end connection user of magnetic latching relay KC1 is negative
It carries, the contact of the cathode connection magnetic latching relay KC2 of diode D3, the contact other end of magnetic latching relay KC2, which connects, to be used
Family load, user load are also connected with zero curve N.
2. a kind of controlling device for charge uneven between three-phase voltage phase sequence according to claim 1, feature exist
In the single-chip microcontroller is 32 single-chip microcontrollers of ARM.
3. a kind of controlling device for charge uneven between three-phase voltage phase sequence according to claim 1, feature exist
In the diode D1 is rectifier diode.
4. a kind of controlling device for charge uneven between three-phase voltage phase sequence according to claim 1, feature exist
In the diode D2 is rectifier diode.
5. a kind of controlling device for charge uneven between three-phase voltage phase sequence according to claim 1 to 4,
It is characterized in that, the diode D3 is rectifier diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834234.6U CN208904661U (en) | 2018-11-08 | 2018-11-08 | A kind of controlling device for charge uneven between three-phase voltage phase sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834234.6U CN208904661U (en) | 2018-11-08 | 2018-11-08 | A kind of controlling device for charge uneven between three-phase voltage phase sequence |
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| CN208904661U true CN208904661U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821834234.6U Active CN208904661U (en) | 2018-11-08 | 2018-11-08 | A kind of controlling device for charge uneven between three-phase voltage phase sequence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098627A (en) * | 2019-06-17 | 2019-08-06 | 重庆大全泰来电气有限公司 | A kind of commutation device, method, system and three-phase power balance method, system |
-
2018
- 2018-11-08 CN CN201821834234.6U patent/CN208904661U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098627A (en) * | 2019-06-17 | 2019-08-06 | 重庆大全泰来电气有限公司 | A kind of commutation device, method, system and three-phase power balance method, system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220118 Address after: 050000 room 2409, municipal science and technology center, 136 Huanghe Avenue, high tech Zone, Shijiazhuang, Hebei Patentee after: Shijiazhuang Fuxin Power Technology Co.,Ltd. Address before: 050000 room 416, municipal science and technology center, 136 Huanghe Avenue, high tech Zone, Shijiazhuang, Hebei Patentee before: SHIJIAZHUANG FURUN NEW TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |