CN104659914A - Distribution transform terminal for power distribution automation - Google Patents
Distribution transform terminal for power distribution automation Download PDFInfo
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- CN104659914A CN104659914A CN201510046104.0A CN201510046104A CN104659914A CN 104659914 A CN104659914 A CN 104659914A CN 201510046104 A CN201510046104 A CN 201510046104A CN 104659914 A CN104659914 A CN 104659914A
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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
- Y02E40/30—Reactive power compensation
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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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The invention belongs to the technical field of power distribution, and particularly relates to a distribution transform terminal for power distribution automation. The distribution transform terminal comprises a main control unit, a distribution transform terminal body, a low-voltage reactive power compensation unit and a power source unit, wherein the distribution transform terminal body is connected with the low-voltage reactive power compensation unit; the low-voltage reactive power compensation unit is connected with the main control unit; the power source unit is connected with the main control, and comprises a 12 V power source and a 5 V power source; the main control unit comprises a chip U1; the pin 19 of the chip U1 is earthed; the emitting electrode of a triode Q2 is connected with one end of a resistor R1; the collecting electrode of the triode Q2 is connected with the 5 V power source; the other end of the resistor R1 is earthed. The distribution transform terminal has the advantages that a low-voltage reactive power compensation mode is adopted, so that the requirement for quick load changing can be met, reactive power compensation can be quick and dynamic, and power connection can be realized in a distributed manner. Therefore, a distribution transformer can operate more stably, and power supply can be more reliable and safer.
Description
Technical field
The invention belongs to distribution technique field, particularly relate to a kind of power distribution automation distribution transformer terminals.
Background technology
In power supply and distribution of electric power system, distribution transformer is power equipment voltage directly being distributed to low-voltage customer, its service data is the important component part of whole power distribution network basic data, comprising: three-phase voltage, three-phase current, three-phase are gained merit (idle) power, power factor, frequency, oil temperature (wetting) degree etc., and whether these data are normally that whether good distribution transformer run important reflection.Therefore, monitor the abnormal conditions of distribution transformer emerged in operation in real time and controlled or solve in time, stable, the optimizing operation of electrical network can be realized.But traditional distribution system, distribution transformer fluctuation of service, power supply reliability is poor.
Summary of the invention
The invention provides a kind of power distribution automation distribution transformer terminals, to solve distribution system traditional in above-mentioned background technology, distribution transformer fluctuation of service, the problem of power supply reliability difference.
Technical problem solved by the invention realizes by the following technical solutions: the invention provides a kind of power distribution automation distribution transformer terminals, it is characterized in that: comprise main control unit, distribution transformer terminals, low-pressure reactive compensation unit, power subsystem, described distribution transformer terminals connects low-pressure reactive compensation unit, described low-pressure reactive compensation unit connects main control unit, described power subsystem connects main control unit, and described power subsystem comprises voltage+12V, voltage+5V.
Described main control unit comprises chip U1, triode Q2, resistance R1, output interface J2, pin 19 ground connection of described chip U1, its pin 27 connects the base stage of triode Q2, its pin 34 connects the pin 4 of output interface J2, its pin 35 connects the pin 3 of output interface J2, its pin 36 connects the pin 2 of output interface J2, its pin 37 connects the pin 1 of output interface J2, its pin 39 meets voltage+12V, one end of the emitter connecting resistance R1 of described triode Q2, its collector electrode meets voltage+5V, the other end ground connection of described resistance R1.
Described chip U1 selects MCU chip.
Described distribution transformer terminals comprises distribution transformer T1, distribution transformer T2, distribution transformer T3, switch S 1, switch S 2, switch S 3, diode D4, diode D5, diode D6, resistance R2, resistance R3, resistance R6, the pin 1 of input power J1, described input power J1 connects the pin 2 of distribution transformer T1, the pin 2 of distribution transformer T2, the pin 2 of distribution transformer T3, its pin 2 connects one end of switch S 1, one end of switch S 2, one end of switch S 3, the pin 1 of described distribution transformer T1 connects the other end of switch S 1, one end of its pin 3 connecting resistance R6, its pin 4 connects the anode of diode D4, the pin 1 of described distribution transformer T2 connects the other end of switch S 2, one end of its pin 3 connecting resistance R2, its pin 4 connects the anode of diode D5, the pin 1 of described distribution transformer T3 connects the other end of switch S 3, one end of its pin 3 connecting resistance R3, its pin 4 connects the anode of diode D6, and the negative electrode of described diode D4 connects the negative electrode of diode D5, the negative electrode of diode D6, one end of electric capacity C1, one end of resistance R8, the base stage of triode Q3, the other end of another termination capacitor R2 of described resistance R6, the other end of resistance R3, the other end of electric capacity C1, the other end of resistance R8, the collector electrode of triode Q1, one end of electric capacity C3.
Described low-pressure reactive compensation unit comprises resistance R3, resistance R4, resistance R5, resistance R8, triode Q1, triode Q3, voltage-stabiliser tube D3, diode D2, electric capacity C1, electric capacity C3, electric capacity C4, the emitter of described triode Q3 connects the emitter of triode Q1, the anode of its collector diode D2, one end of the negative electrode connecting resistance R3 of described diode D2, the negative electrode of voltage-stabiliser tube D3, one end of resistance R5 and connect the pin 5 of chip U1, the other end of the base stage connecting resistance R3 of described triode Q1, one end of the anode connecting resistance R4 of described voltage-stabiliser tube D3, the other end of another termination capacitor C3 of described resistance R4, one end of electric capacity C4 and all connect the pin 6 of chip U1, the other end of the other end connecting resistance R5 of described electric capacity C4.
Described triode Q1 selects NPN triode.
Described triode Q3 selects NPN triode.
Beneficial effect of the present invention is:
1 input power of the present invention is respectively through 3 distribution transformer transformation conversions, then low-pressure reactive compensation unit is entered, form reaction type by two triodes and diode and detect realization compensation, through pressurizer laggard enter master control cell processing, finally the voltage after process is exported away, whole process, with the reactive power power of load for switching physical quantity, real-time tracking switching, the whole system response time is less than 30ms, can meet the needs of Rapid Variable Design load, realizes compensating fast, distribution transformer is run more stable, power more reliability, safety.
2 the present invention adopt recharge technique, avoid the impact of switching capacitance, improve the security reliability of distribution transformer operation stability and power supply further.
3 the present invention adopt low-pressure reactive compensation mode, realize dynamic passive compensation, power distribution are accessed, greatly improve the fail safe of circuit.
4 distribution transformer terminals of the present invention adopt 3 distribution transformer composition three-phase imbalances and harmonic wave administration way, realize the even running of electrical network further, realize distribution integrate automation level.
5 the present invention improve power supply reliability, improve distribution planning level, reduce grid line loss, improve distribution scheduling managerial skills, improve repairing operating efficiency.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention;
Fig. 2 is the circuit theory diagrams of main control unit of the present invention;
Fig. 3 is the circuit theory diagrams of distribution transformer terminals of the present invention;
Fig. 4 is the circuit theory diagrams of low-pressure reactive compensation unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
Embodiment:
The present embodiment comprises: main control unit, distribution transformer terminals, low-pressure reactive compensation unit, power subsystem.
In Fig. 1, distribution transformer terminals connects low-pressure reactive compensation unit, and low-pressure reactive compensation unit connects main control unit, and power subsystem connects main control unit, and power subsystem comprises voltage+12V, voltage+5V.
In Fig. 2, main control unit comprises chip U1, triode Q2, resistance R1, output interface J2, pin 19 ground connection of chip U1, and its pin 27 connects the base stage of triode Q2, its pin 34 connects the pin 4 of output interface J2, its pin 35 connects the pin 3 of output interface J2, and its pin 36 connects the pin 2 of output interface J2, and its pin 37 connects the pin 1 of output interface J2, its pin 39 meets voltage+12V, one end of the emitter connecting resistance R1 of triode Q2, its collector electrode meets voltage+5V, the other end ground connection of resistance R1.
Chip U1 selects MCU chip.
In Fig. 3, distribution transformer terminals comprises distribution transformer T1, distribution transformer T2, distribution transformer T3, switch S 1, switch S 2, switch S 3, diode D4, diode D5, diode D6, resistance R2, resistance R3, resistance R6, the pin 1 of input power J1, input power J1 connects the pin 2 of distribution transformer T1, the pin 2 of distribution transformer T2, the pin 2 of distribution transformer T3, its pin 2 connects one end of switch S 1, one end of switch S 2, one end of switch S 3, the pin 1 of distribution transformer T1 connects the other end of switch S 1, one end of its pin 3 connecting resistance R6, its pin 4 connects the anode of diode D4, and the pin 1 of distribution transformer T2 connects the other end of switch S 2, one end of its pin 3 connecting resistance R2, its pin 4 connects the anode of diode D5, and the pin 1 of distribution transformer T3 connects the other end of switch S 3, one end of its pin 3 connecting resistance R3, its pin 4 connects the anode of diode D6, and the negative electrode of diode D4 connects the negative electrode of diode D5, the negative electrode of diode D6, one end of electric capacity C1, one end of resistance R8, the base stage of triode Q3, the other end of another termination capacitor R2 of resistance R6, the other end of resistance R3, the other end of electric capacity C1, the other end of resistance R8, the collector electrode of triode Q1, one end of electric capacity C3.
In Fig. 4, low-pressure reactive compensation unit comprises resistance R3, resistance R4, resistance R5, resistance R8, triode Q1, triode Q3, voltage-stabiliser tube D3, diode D2, electric capacity C1, electric capacity C3, electric capacity C4, the emitter of triode Q3 connects the emitter of triode Q1, the anode of its collector diode D2, one end of the negative electrode connecting resistance R3 of diode D2, the negative electrode of voltage-stabiliser tube D3, one end of resistance R5 and connect the pin 5 of chip U1, the other end of the base stage connecting resistance R3 of triode Q1, one end of the anode connecting resistance R4 of voltage-stabiliser tube D3, the other end of another termination capacitor C3 of resistance R4, one end of electric capacity C4 and all connect the pin 6 of chip U1, the other end of the other end connecting resistance R5 of electric capacity C4.
Input power of the present invention is respectively through 3 distribution transformer transformation conversions, then low-pressure reactive compensation unit is entered, form reaction type by two triodes and diode and detect realization compensation, through pressurizer laggard enter master control cell processing, finally the voltage after process is exported away, whole process, with the reactive power power of load for switching physical quantity, real-time tracking switching, the whole system response time is less than 30ms, can meet the needs of Rapid Variable Design load, realizes compensating fast, distribution transformer is run more stable, power more reliability, safety.
The present invention is a series of intelligent apparatus measuring, measure, bear the functions such as control, reactive power compensation, protection to distribution low-voltage part; low-pressure reactive compensation unit is mainly used in the occasion only needing to realize no-power compensation function; distribution transformer terminals can realize the function of intelligent type low-voltage distribution box; the package gathered multi-function in integral whole, also can be applicable to apply as distribution transforming sense terminals in power distribution automation project.
Utilize technical solutions according to the invention, or those skilled in the art being under the inspiration of technical solution of the present invention, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection scope of the present invention.
Claims (7)
1. a power distribution automation distribution transformer terminals, it is characterized in that: comprise main control unit, distribution transformer terminals, low-pressure reactive compensation unit, power subsystem, described distribution transformer terminals connects low-pressure reactive compensation unit, described low-pressure reactive compensation unit connects main control unit, described power subsystem connects main control unit, and described power subsystem comprises voltage+12V, voltage+5V.
2. a kind of power distribution automation distribution transformer terminals according to claim 1, it is characterized in that: described main control unit comprises chip U1, triode Q2, resistance R1, output interface J2, pin 19 ground connection of described chip U1, its pin 27 connects the base stage of triode Q2, its pin 34 connects the pin 4 of output interface J2, its pin 35 connects the pin 3 of output interface J2, its pin 36 connects the pin 2 of output interface J2, its pin 37 connects the pin 1 of output interface J2, its pin 39 meets voltage+12V, one end of the emitter connecting resistance R1 of described triode Q2, its collector electrode meets voltage+5V, the other end ground connection of described resistance R1.
3. a kind of power distribution automation distribution transformer terminals according to claim 2, is characterized in that: described chip U1 selects MCU chip.
4. a kind of power distribution automation distribution transformer terminals according to claim 1, is characterized in that: described distribution transformer terminals comprises distribution transformer T1, distribution transformer T2, distribution transformer T3, switch S 1, switch S 2, switch S 3, diode D4, diode D5, diode D6, resistance R2, resistance R3, resistance R6, the pin 1 of input power J1, described input power J1 connects the pin 2 of distribution transformer T1, the pin 2 of distribution transformer T2, the pin 2 of distribution transformer T3, its pin 2 connects one end of switch S 1, one end of switch S 2, one end of switch S 3, the pin 1 of described distribution transformer T1 connects the other end of switch S 1, one end of its pin 3 connecting resistance R6, its pin 4 connects the anode of diode D4, the pin 1 of described distribution transformer T2 connects the other end of switch S 2, one end of its pin 3 connecting resistance R2, its pin 4 connects the anode of diode D5, the pin 1 of described distribution transformer T3 connects the other end of switch S 3, one end of its pin 3 connecting resistance R3, its pin 4 connects the anode of diode D6, and the negative electrode of described diode D4 connects the negative electrode of diode D5, the negative electrode of diode D6, one end of electric capacity C1, one end of resistance R8, the base stage of triode Q3, the other end of another termination capacitor R2 of described resistance R6, the other end of resistance R3, the other end of electric capacity C1, the other end of resistance R8, the collector electrode of triode Q1, one end of electric capacity C3.
5. a kind of power distribution automation distribution transformer terminals according to claim 1, it is characterized in that: described low-pressure reactive compensation unit comprises resistance R3, resistance R4, resistance R5, resistance R8, triode Q1, triode Q3, voltage-stabiliser tube D3, diode D2, electric capacity C1, electric capacity C3, electric capacity C4, the emitter of described triode Q3 connects the emitter of triode Q1, the anode of its collector diode D2, one end of the negative electrode connecting resistance R3 of described diode D2, the negative electrode of voltage-stabiliser tube D3, one end of resistance R5 and connect the pin 5 of chip U1, the other end of the base stage connecting resistance R3 of described triode Q1, one end of the anode connecting resistance R4 of described voltage-stabiliser tube D3, the other end of another termination capacitor C3 of described resistance R4, one end of electric capacity C4 and all connect the pin 6 of chip U1, the other end of the other end connecting resistance R5 of described electric capacity C4.
6. a kind of power distribution automation distribution transformer terminals according to claim 5, is characterized in that: described triode Q1 selects NPN triode.
7. a kind of power distribution automation distribution transformer terminals according to claim 5, is characterized in that: described triode Q3 selects NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046104.0A CN104659914A (en) | 2015-01-29 | 2015-01-29 | Distribution transform terminal for power distribution automation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046104.0A CN104659914A (en) | 2015-01-29 | 2015-01-29 | Distribution transform terminal for power distribution automation |
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| Publication Number | Publication Date |
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| CN104659914A true CN104659914A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510046104.0A Pending CN104659914A (en) | 2015-01-29 | 2015-01-29 | Distribution transform terminal for power distribution automation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202050580U (en) * | 2011-04-11 | 2011-11-23 | 国琏电子（上海）有限公司 | Multi-tube driving system |
| CN202772672U (en) * | 2012-09-06 | 2013-03-06 | 杭州西力电能表制造有限公司 | Public distribution and transformation monitoring terminal |
| CN205070599U (en) * | 2015-01-29 | 2016-03-02 | 杭州申昊科技股份有限公司 | Distribution automation joins in marriage change terminal |
-
2015
- 2015-01-29 CN CN201510046104.0A patent/CN104659914A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202050580U (en) * | 2011-04-11 | 2011-11-23 | 国琏电子（上海）有限公司 | Multi-tube driving system |
| CN202772672U (en) * | 2012-09-06 | 2013-03-06 | 杭州西力电能表制造有限公司 | Public distribution and transformation monitoring terminal |
| CN205070599U (en) * | 2015-01-29 | 2016-03-02 | 杭州申昊科技股份有限公司 | Distribution automation joins in marriage change terminal |
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Application publication date: 20150527 |