CN104795824A - Capacity-adjustable intelligent capacitor based on voltage regulating module - Google Patents
Capacity-adjustable intelligent capacitor based on voltage regulating module Download PDFInfo
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- CN104795824A CN104795824A CN201510212215.4A CN201510212215A CN104795824A CN 104795824 A CN104795824 A CN 104795824A CN 201510212215 A CN201510212215 A CN 201510212215A CN 104795824 A CN104795824 A CN 104795824A
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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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Abstract
The invention discloses a capacity-adjustable intelligent capacitor based on a voltage regulating module. The capacity-adjustable intelligent capacitor comprises a control switch, a power capacitor module and an intelligent voltage regulating module. An input end of the intelligent voltage regulating module is connected with the control switch while an output end thereof is connected with the power capacitor module. According to reactive compensation capacity needed by a power grid, the voltage regulating module is driven through a CPU automatically to regulate output voltage to the capacitor, the corresponding compensation capacity is obtained, switches are not needed, inrush interference is avoided, low compensation precision and unreasonable compensation are overcome, damage to the capacitor caused by frequent switching is avoided, and service life of the capacitor is prolonged.
Description
Technical field
The present invention relates to capacitor, especially a kind of capacity transfer Intelligent capacitor based on voltage regulating module.
Background technology
Along with the raising of scientific and technological level, the requirement of traditional processing technology also constantly promotes, and existing Intelligent capacitor technology cannot meet the meticulous compensation requirement of electric network reactive-load capacity completely.Scheme of Reactive Power Compensation traditional in capacitor box is equipped with required reactive compensation capacity according to the installed capacity of transformer by 30%, the Intelligent capacitor of multiple stage equivalent capability or capacitor is selected to be in parallel, adopt contactor or combination switch switching, this situation can cause compensation precision coarse, and effect is too poor, or crosses benefit or owe to mend, do not reach energy-conservation effect, requisite space is large, unreasonable, creates waste like this to resource and space.Operating passing zero do not accomplished by fling-cut switch, to shove interference to capacitor, shortening capatcitor useful life.
Summary of the invention
Technical problem to be solved by this invention is, a kind of capacity transfer Intelligent capacitor based on voltage regulating module is provided, program structure is simple, separate unit or multiple stage integrated without the need to switching, in reactive power compensation process needed for electrical network, automatically by voltage regulating module adjustment voltage soft change compensation capacity, avoid produce due to frequent switching shove to the shock problem of capacitor, extend the useful life of capacitor, more effective energy-conservation.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of capacity transfer Intelligent capacitor based on voltage regulating module, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
Adopt regulating capacitor both end voltage thus the design of regulating capacitor capacitance, make in reactive power compensation process needed for electrical network, free control capacittance both end voltage can be carried out according to the reactive power compensation amount of electrical network self, thus soft change compensation capacity, avoid produce due to frequent switching shove to the shock problem of capacitor, extend the useful life of capacitor, more effective energy-conservation.
Further, intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply provides CPU control module and data acquisition module electric energy.
By the electric current I of the whole circuit of data collecting module collected, voltage U and work time power factor COS Φ, then calculating gross power by CPU computing driving is S=I*U, actual power is P=S*COS Φ, reactive power Q when calculating power factor COS Φ=
; When power factor brings up to COS Φ 1 from COS Φ, apparent power is now S1=P/COS Φ 1, reactive power Q 1=
, need capacitance reactive compensation amount Qc=Q-Q1.
Then according to Qc=WCU
2=2 π fCU
2, i.e. U=
, calculate the voltage that electric capacity two ends are corresponding, then by drive circuit, control voltage regulating module and be adjusted to corresponding voltage U.
Further, voltage regulating module comprises voltage regulator and drives actuator, the input of described voltage regulator is connected with driving the output of actuator, the input of described voltage regulator is connected with the output of current transformer, and the input of described driving actuator is connected with the output of CPU control module.
Adopting the design of voltage regulator and driving actuator, when CPU control module sends instruction to driving actuator, by driving actuating mechanism controls voltage regulator operation, when using as step-down transformer, from winding, extracting a part of wire turn out as secondary winding; When using as step-up transformer, applied voltage be only added in winding-part wire turn on, thus carry out the change of regulation voltage.
Further, voltage regulator is three-phase regulator, and described power capacitor module comprises the capacitor of shell and enclosure, and described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is that corner connection capacitor or star connect capacitor, and described control switch is air switch.Structure is simple, reasonable in design.
Further, voltage regulator is single-phase voltage regulator, and described power capacitor module comprises the capacitor of shell and enclosure, and described shell is iron-clad, stainless steel case or aluminum hull, and described capacitor is single-phase electricity container, and described control switch is breaker of plastic casing.Structure is simple, reasonable in design.
Further, voltage regulating module is thyristor, and the input of described thyristor is connected with the output of three current transformers, and the trigger end of described thyristor is connected with the output of CPU control module.
The angle of flow of thyristor is controlled by CPU control module, thus the input voltage of regulating capacitor, thus have influence on the change of reactive power Q; Reactive power compensation amount needed for electrical network, capacity transfer Intelligent capacitor with voltage regulating module reaches corresponding reactive compensation power by the pressure regulation of voltage regulating module automatically, makes electrical network can carry out soft compensation freely, reaches saving capacitors count, increase and compensate flexibility ratio, fully save the energy.
Further, thyristor is three-phase thyristor, and described power capacitor module comprises the capacitor of shell and enclosure, and described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is that corner connection capacitor or star connect capacitor, and described control switch is air switch.Structure is simple, reasonable in design.
Further, thyristor is single-phase thyristor, and described power capacitor module comprises the capacitor of shell and enclosure, and described shell is iron-clad, stainless steel case or aluminum hull, and described capacitor is single-phase electricity container, and described control switch is breaker of plastic casing.Structure is simple, reasonable in design.
Further, CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
During work, drive computing to calculate the data analysis gathered by CPU, then by CPU drive circuit, voltage regulating module is controlled, be adjusted to required voltage, just in time meet the compensation rate of electrical network needs, avoid the shock problem shoved to capacitor.
Compared with prior art, the capacity transfer Intelligent capacitor that the present invention is based on voltage regulating module has following advantage: 1) reactive power compensation is meticulous, effective, can not produce and mend or owe to mend; 2) adopt separate unit aggregation type reactive power compensator unit, reduce limited cabinet space, reduce investment, economize on resources; 3) without the need to fling-cut switch, interference of not shoving, extends the useful life of capacitor.
Accompanying drawing explanation
Fig. 1 is the circuit module figure of the embodiment of the present invention 1.
Fig. 2 is the circuit module figure of the embodiment of the present invention 2.
Fig. 3 is the circuit module figure of the embodiment of the present invention 3.
Fig. 4 is the circuit module figure of the embodiment of the present invention 4.
Fig. 5 is the circuit module figure of the embodiment of the present invention 5.
Fig. 6 is the circuit module figure of the embodiment of the present invention 6.
Embodiment
In order to understand the present invention further, below in conjunction with accompanying drawing, present invention is described.
Embodiment 1
As shown in Figure 1, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module comprises three-phase regulator and drives actuator, the input of described three-phase regulator is connected with driving the output of actuator, the input of described three-phase regulator is connected with the output of current transformer, and the input of described driving actuator is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is corner connection capacitor.
5) control switch is air switch.
Embodiment 2
As shown in Figure 2, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module comprises three-phase regulator and drives actuator, the input of described three-phase regulator is connected with driving the output of actuator, the input of described three-phase regulator is connected with the output of current transformer, and the input of described driving actuator is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is that star connects capacitor.
5) control switch is air switch.
Embodiment 3
As shown in Figure 3, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module comprises single-phase voltage regulator and drives actuator, the input of described single-phase voltage regulator is connected with driving the output of actuator, the input of described single-phase voltage regulator is connected with the output of current transformer, and the input of described driving actuator is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is single-phase electricity container.
5) control switch is breaker of plastic casing.
Embodiment 4
As shown in Figure 4, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module is three-phase thyristor, and the input of described three-phase thyristor is connected with the output of current transformer, and the trigger end of described three-phase thyristor is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is corner connection capacitor.
5) control switch is air switch.
Embodiment 5
As shown in Figure 5, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module is three-phase thyristor, and the input of described three-phase thyristor is connected with the output of current transformer, and the trigger end of described three-phase thyristor is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is that star connects capacitor.
5) control switch is air switch.
Embodiment 6
As shown in Figure 6, a kind of capacity transfer Intelligent capacitor based on voltage regulating module that the present embodiment provides, comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
All parts for the present embodiment explains:
1) intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply carries CPU control module and data acquisition module electric energy.
2) voltage regulating module is single-phase thyristor, and the described input of single-phase thyristor is connected with the output of current transformer, and the trigger end of described single-phase thyristor is connected with the output of CPU control module.
3) CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
4) power capacitor module comprises the capacitor of shell and enclosure, and described shell is aluminum hull, and described capacitor is single-phase electricity container.
5) control switch is breaker of plastic casing.
Above six embodiments compared with prior art have following advantage: 1) reactive power compensation is meticulous, effective, can not produce and mend or owe to mend; 2) adopt separate unit aggregation type reactive power compensator unit, reduce limited cabinet space, reduce investment, economize on resources; 3) without the need to fling-cut switch, interference of not shoving, extends the useful life of capacitor.
These are only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill in the art, not departing under principle prerequisite of the present invention, can also make various deformation and improvement, this also should be considered as protection scope of the present invention.
Claims (9)
1. the capacity transfer Intelligent capacitor based on voltage regulating module, it is characterized in that: comprise control switch, power capacitor module and intelligent pressure regulating module, described intelligent pressure regulating module input is connected with control switch, and described intelligent pressure regulating module output is connected with power capacitor module.
2. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 1, it is characterized in that: described intelligent pressure regulating module comprises voltage regulating module, CPU control module, data acquisition module summation current transformer, the input of described current transformer is connected with control switch, the output of described current transformer is connected with the input of voltage regulating module, described current transformer gathers the electric current in each loop, the input of described voltage regulating module is connected with the output of CPU control module, the described input of CPU control module is connected with the output of data acquisition module, the input of described data acquisition module is connected with control switch with current transformer output, described power supply provides CPU control module and data acquisition module electric energy.
3. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 2, it is characterized in that: described voltage regulating module comprises voltage regulator and drives actuator, the input of described voltage regulator is connected with driving the output of actuator, the input of described voltage regulator is connected with the output of current transformer, and the input of described driving actuator is connected with the output of CPU control module.
4. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 3, it is characterized in that: described voltage regulator is three-phase regulator, described power capacitor module comprises the capacitor of shell and enclosure, described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is that corner connection capacitor or star connect capacitor, and described control switch is air switch.
5. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 3, it is characterized in that: described voltage regulator is single-phase voltage regulator, described power capacitor module comprises the capacitor of shell and enclosure, described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is single-phase electricity container, and described control switch is breaker of plastic casing.
6. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 2, it is characterized in that: described voltage regulating module is thyristor, the input of described thyristor is connected with the output of current transformer, and the trigger end of described thyristor is connected with the output of CPU control module.
7. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 6, it is characterized in that: described thyristor is three-phase thyristor, described power capacitor module comprises the capacitor of shell and enclosure, described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is that corner connection capacitor or star connect capacitor, and described control switch is air switch.
8. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 6, it is characterized in that: described thyristor is single-phase thyristor, described power capacitor module comprises the capacitor of shell and enclosure, described shell is iron-clad, stainless steel case or aluminum hull, described capacitor is single-phase electricity container, and described control switch is breaker of plastic casing.
9. the capacity transfer Intelligent capacitor based on voltage regulating module according to claim 2-8, it is characterized in that: described CPU control module comprises CPU drive circuit, CPU computing drives, the output that described CPU computing drives is connected with the input of CPU drive circuit, the input that described CPU computing drives is connected with data acquisition module, and the described output of CPU drive circuit is connected with the input of FM module.
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| CN201510212215.4A CN104795824A (en) | 2015-04-29 | 2015-04-29 | Capacity-adjustable intelligent capacitor based on voltage regulating module |
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| CN201510212215.4A CN104795824A (en) | 2015-04-29 | 2015-04-29 | Capacity-adjustable intelligent capacitor based on voltage regulating module |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041069A (en) * | 1989-09-28 | 1990-04-04 | 邹守宝 | The basic circuit of regulating capacitor capacity |
| CN1281280A (en) * | 1999-07-15 | 2001-01-24 | 裴迪生 | Reactive power compensator of aontactless switch |
| CN201805231U (en) * | 2010-06-02 | 2011-04-20 | 刘玉艳 | Dynamic reactive power compensation device |
| CN202150705U (en) * | 2011-08-02 | 2012-02-22 | 西安森宝电气工程有限公司 | Thyristor voltage adjusting transformer station automatic reactive compensation device for adjusting reactive capacity |
| CN204615394U (en) * | 2015-04-29 | 2015-09-02 | 浙江沃尔德电力电子有限公司 | A kind of capacity transfer Intelligent capacitor based on voltage regulating module |
-
2015
- 2015-04-29 CN CN201510212215.4A patent/CN104795824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041069A (en) * | 1989-09-28 | 1990-04-04 | 邹守宝 | The basic circuit of regulating capacitor capacity |
| CN1281280A (en) * | 1999-07-15 | 2001-01-24 | 裴迪生 | Reactive power compensator of aontactless switch |
| CN201805231U (en) * | 2010-06-02 | 2011-04-20 | 刘玉艳 | Dynamic reactive power compensation device |
| CN202150705U (en) * | 2011-08-02 | 2012-02-22 | 西安森宝电气工程有限公司 | Thyristor voltage adjusting transformer station automatic reactive compensation device for adjusting reactive capacity |
| CN204615394U (en) * | 2015-04-29 | 2015-09-02 | 浙江沃尔德电力电子有限公司 | A kind of capacity transfer Intelligent capacitor based on voltage regulating module |
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