CN108899915A - A kind of operation/cutting method of reactive power compensation device and its capacitor group - Google Patents
A kind of operation/cutting method of reactive power compensation device and its capacitor group Download PDFInfo
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- CN108899915A CN108899915A CN201810727946.6A CN201810727946A CN108899915A CN 108899915 A CN108899915 A CN 108899915A CN 201810727946 A CN201810727946 A CN 201810727946A CN 108899915 A CN108899915 A CN 108899915A
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- capacitor group
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- capacitor
- load stabilization
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to Technique of Compensating Capacitance for Reactive field more particularly to a kind of capacitor group switching method and use the device of this method.The circuit for detecting load stabilization carries out the capacitance of required capacitor group when reactive power compensation, setting at least two groups capacitor group identical with above-mentioned capacitance, and controller controls the circuit of above-mentioned capacitor group circulation access load stabilization.Avoid the long-term the problem of then causing capacitor group to be generated heat in operating status of the capacitor group in the circuit of load stabilization, the method had both reduced the probability of the accident caused by the fever of capacitor group, it ensure that every group capacitor equilibrium switching also by the control action of the controller of the circuit of load stabilization, the service life for extending capacitor improves the safety and reliability of power supply system operation.
Description
Technical field
The present invention relates to Technique of Compensating Capacitance for Reactive field more particularly to a kind of reactive power compensation devices and its capacitor
The operation/cutting method of group.
Background technique
Controller working principle currently on the market be all by detect power supply system load variations by controller come
The capacitor group of size needed for selecting carries out switching, and such as the working principle diagram that Fig. 1 is controller, existing switching mode exists
One problem：Steadily either change in the little i.e. circuit of load stabilization in system loading Comparision, controller control
The capacitor group to put into operation can work long hours without switching, and prolonged operation will lead to the capacitor group of input operation
Fever, even resulted in when serious capacitor group burn, the major accidents such as system blackout, influence the safety and stability fortune of power supply system
Row.
Summary of the invention
The present invention is to solve the above-mentioned mentioned capacitor group long-play in reactive power compensation to cause fever tight
The operation/cutting method of problem and a kind of reactive power compensation device of use and its capacitor group, a kind of reactive power compensation device again
And its operation/cutting method content of capacitor group is as follows：
The circuit for detecting load stabilization carries out the capacitance of required capacitor group when reactive power compensation, setting at least two
Group capacitor group identical with above-mentioned capacitance, controller control the electricity of above-mentioned capacitor group circulation access load stabilization
Road.
Controller has automatic control program and non-automatic control program, and controller controls above-mentioned capacitor group circulation and throws
The circuit cut into load stabilization specifically comprises the following steps,
Capacitor group access point is arranged in step 1 in the circuit of load stabilization；
Step 2, the controller control at least two groups capacitor group enter automatic control program, and controller control at this time is wherein
Simultaneously timing m seconds in the circuit of one capacitor group access load stabilization；
Step 3, after m seconds, controller controls the capacitor group of the above-mentioned circuit for entering load stabilization from the electricity of load stabilization
Non-automatic control program, and timing w seconds are cut off and entered in road；
Step 4, after w seconds, next group capacitor group enters in the circuit of load stabilization simultaneously timing m seconds, and prolongs again at the end of w seconds
When n seconds, n seconds after capacitor group of the controller control in the step 3 in non-automatic control program reenter automatic control journey
Sequence；
The process for starting to repeat step 3 to step 4 at this time, by the circuit of remaining capacitor group switching to load stabilization simultaneously
It is recycled；
Value in above-mentioned step between w, m and n three, which meets, closes w+m>N, and w >=0.
The controller includes single-chip microcontroller.
The w > 0.
The capacitor group includes a capacitor.
Reactive power compensation device, including controller, it is characterised in that：It further include the circuit of at least two groups and load stabilization
It carries out the identical capacitor group of required capacitance, the controller when reactive power compensation and controls above-mentioned capacitor group
It is recycled into the circuit of load stabilization.
The controller has automatic control program and non-automatic control program, and controller controls above-mentioned at least two groups electricity
The circuit that container group switching cycle enters load stabilization specifically comprises the following steps,
Capacitor group access point is arranged in step 1 in the circuit of load stabilization；
Step 2, the controller control above-mentioned at least two groups capacitor group and enter automatic control program, controller control at this time
It makes in the circuit of one of capacitor group access load stabilization simultaneously timing m seconds；
Step 3, after m seconds, controller controls the capacitor group of the above-mentioned circuit for entering load stabilization from load stabilization
Non-automatic control program, and timing w seconds are cut off and entered in circuit；
Step 4, after w seconds, next group capacitor group enters in the circuit of load stabilization simultaneously timing m seconds, and the n that is delayed at the end of w seconds
Second, the capacitor group after n seconds in controller control above-mentioned steps in non-automatic control program reenters automatic control journey
Sequence；
Start to repeat at this time step 3 to step 4 process by the circuit of remaining capacitor group switching to load stabilization simultaneously
It is recycled；
Value in above-mentioned step between w, m and n three, which meets, closes w+m > n, and w >=0.
The controller includes single-chip microcontroller.
The w > 0.
The capacitor group includes a capacitor.
Beneficial effects of the present invention：The capacitor groups of at least two groups circulation is linked under the control action of controller negative
It carries in stable circuit, avoids that system load is long-term unchanged or load changes the lesser circuit i.e. circuit of load stabilization
In capacitor group long-term the problem of then causing capacitor group to be generated heat in operating status, the method had both been reduced because of capacitor
The probability of group fever initiation accident, ensure that every group capacitor is equal also by the control action of the controller of the circuit of load stabilization
Weigh switching, extends the service life of capacitor, improves the safety and reliability of power supply system operation.
Detailed description of the invention
Fig. 1 is the working principle diagram of controller；
Fig. 2 is a kind of flow chart of the embodiment one of the operation/cutting method of reactive power compensation device and its capacitor group.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of capacitor group switching method of reactive power compensation device of the invention is suitable for filling with reactive compensation
It is the present invention below system load is unchanged or load changes in lesser circuit that effect is more obvious in the circuit set
A kind of reactive power compensation device capacitor group switching method specific embodiment：
Embodiment one：
Step 1 is provided with capacitor group access point in the circuit of load stabilization；
Step 2 is provided with two group capacitor groups, respectively first capacitor device group and the second capacitor in capacitor group access point
Group；
First capacitor device group and the second capacitor group are accessed automatic control program by step 3, the controller；
Step 4, controller control execution unit controls simultaneously by the circuit of first capacitor device group access load stabilization at this time
Device is timed first capacitor device group m seconds；
Step 5, after m seconds, controller control execution unit cuts off first capacitor device group from the circuit of load stabilization, and
First capacitor device group enters non-automatic control program at this time；
Step 6, when first capacitor device group enters non-automatic control program, delay w second the second capacitor group enters load stabilization
Circuit in and timing m seconds, when the second capacitor group enters the circuit of load stabilization from first capacitor device group is again when being delayed n seconds
Enter to automatic control program；
Step 7, after m seconds, controller control execution unit cuts off the second capacitor group from the circuit of load stabilization, and
The second capacitor group enters non-automatic control program at this time；
Step 8, when the second capacitor group enters non-automatic control program, it is steady to enter load for first capacitor device group after delay w seconds
Surely simultaneously timing m seconds in the circuit run, when first capacitor device group enters the circuit of load stabilization operation, the second electricity after delay n seconds
Container group reenters automatic control program.
Above-mentioned steps are started the cycle over from step 5 at this time.
Embodiment two：
Capacitor group access point is arranged in step 1 in the circuit of load stabilization；
Step 2, capacitor group access point be arranged three group capacitor groups, respectively third capacitor group, the 4th capacitor group and
5th capacitor group；
Third capacitor group, the 4th capacitor group and the 5th capacitor group are accessed automatic control program by step 3, controller；
Step 4, controller is by the circuit of third capacitor group access load stabilization at this time, while controller is to entering electricity
Third capacitor group in road is timed m seconds；
Step 5, after m seconds, controller control execution unit cuts off third capacitor group from the circuit of load stabilization, and
Third capacitor group enters non-automatic control program at this time；
Step 6, when third capacitor group enter non-automatic control program when from be delayed w seconds when, the 4th capacitor group enters load
Simultaneously timing m seconds in stable circuit；
Step 7, after m seconds, controller control execution unit cuts off the 4th capacitor group from the circuit of load stabilization, and
The 4th capacitor group enters non-automatic control program at this time；
Step 8, when the 4th capacitor group enters non-automatic control program, delay the 5th capacitor group of w second enters load stabilization
Circuit in and timing m seconds, when the 5th capacitor group enters the circuit time delay of load stabilization, the 4th capacitor group is again after n seconds
Enter to automatic control program；
Step 9, after m seconds, controller control execution unit cuts off the 5th capacitor group from the circuit of load stabilization, and
The 5th capacitor group enters non-automatic control program at this time；
Step 10, when the 5th capacitor group enters non-automatic control program, it is steady to enter load for third capacitor group after delay w seconds
Simultaneously timing m seconds in fixed circuit；When third capacitor group enters the circuit of load stabilization, the 5th capacitor group after delay n seconds
It reenters to automatic control program.
It is recycled at this time from step 5 to step 10.
Embodiment three：
Step 1：Capacitor group access point is set in the circuit of load stabilization；
Step 2：Capacitor group access point is provided with five groups of identical capacitor groups, respectively the 6th capacitor group, the 7th electricity
Container group, the 8th capacitor group, the 9th capacitor group and the tenth capacitor group；
Step 3：6th capacitor group to the tenth capacitor group is accessed automatic control program by the controller；
Step 4：The 6th capacitor group and the combination of the 7th capacitor group are accessed load stabilization by controller control execution unit at this time
Circuit in, while controller combines the 6th capacitor group entered in circuit and the 7th capacitor group timing m seconds；
Step 5, after m seconds, controller control execution unit is steady from load by the 6th capacitor group and the combination of the 7th capacitor group
It is cut off in fixed circuit, and the 6th capacitor group and the 7th capacitor group are combined into non-automatic control program at this time；
When being delayed w seconds from when step 6, the 6th capacitor group and the 7th capacitor group are combined into non-automatic control program, the 8th
Capacitor group and the 9th capacitor group are combined into the circuit of load stabilization simultaneously timing m seconds, when the 8th capacitor group and the 9th
When capacitor group is combined into the circuit time delay of load stabilization after n seconds the 6th capacitor group and the 7th capacitor group combination again into
Enter to automatic control program；
Step 7, after m seconds, controller control execution unit is by the combination of the 8th capacitor group and the 9th capacitor group from load
It is cut off in stable circuit, and the 8th capacitor group and the 9th capacitor group enter non-automatic control program at this time；
Step 8, when the 8th capacitor group and the 9th capacitor group enter non-automatic control program, the tenth capacitor after being delayed w seconds
Device group and the 6th capacitor bank enter in the circuit of load stabilization simultaneously timing m seconds, when the tenth capacitor group and the 6th capacitor
When being combined into the circuit of load stabilization, after delay n second the 8th capacitor group and the 9th capacitor group combine reenter to
Automatic control program；
Step 9, after m seconds, controller control execution unit is by the tenth capacitor group and the 6th capacitor from the electricity of load stabilization
It is cut off in road, and the tenth capacitor group and the 6th capacitor are combined into non-automatic control program at this time；
Step 10, when the tenth capacitor group and when being delayed w seconds when being combined into non-automatic control program of the 6th capacitor, the 7th
Capacitor group and the 8th capacitor group are combined into the circuit of load stabilization timing m seconds, when the 7th capacitor group and the 8th electricity
When container group is combined into the circuit of load stabilization, after delay n seconds the tenth capacitor group and the 6th capacitor group reenter to
Automatic control program；
Step 11：After m seconds, controller control execution unit is steady from load by the 7th capacitor group and the 8th capacitor bank
It is cut off in fixed circuit, and the 7th capacitor group and the 8th capacitor group enter non-automatic control program at this time；
Step 12：When the 7th capacitor group and the 8th capacitor group enter non-automatic control program, the 9th electricity after delay w seconds
Container group and the tenth capacitor group are combined into the circuit of load stabilization simultaneously timing m seconds, when the 9th capacitor group and the tenth electricity
The 7th capacitor group and the combination of the 8th capacitor group reenter after n seconds when container group is combined into the circuit time delay of load stabilization
To automatic control program；
Step 13：After m seconds, controller control execution unit is steady from load by the 9th capacitor group and the tenth capacitor bank
It is cut off in fixed circuit, and the 9th capacitor group and the tenth capacitor group are combined into non-automatic control program at this time；
Step 14：When the 9th capacitor group and the tenth capacitor group are combined into non-automatic control program, the after delay w seconds
Six capacitor groups and the 7th capacitor group are combined into the circuit of load stabilization and timing m seconds, when the 6th capacitor group and the
The 9th capacitor group and the tenth capacitor group combine again after n seconds when seven capacitor groups are combined into the circuit time delay of load stabilization
Enter to automatic control program；
It is recycled at this time from step 5 to step 14.
Beneficial effects of the present invention：The capacitor groups of at least two groups circulation is linked under the control action of controller negative
It carries in stable circuit, avoids that system load is long-term unchanged or load changes the lesser circuit i.e. circuit of load stabilization
In capacitor group long-term the problem of then causing capacitor group to be generated heat in operating status, the method had both been reduced because of capacitor
The probability of group fever initiation accident, ensure that every group capacitor is equal also by the control action of the controller of the circuit of load stabilization
Weigh switching, extends the service life of capacitor, improves the safety and reliability of power supply system operation.
It is convenient when above-described first capacitor device group to the tenth capacitor group is to describe, it is not configured to limit suitable
Sequence.
It is steady to load is reentered next time from the circuit for cutting out load stabilization that the sum of above-mentioned w and n represent capacitor group
One time parameter of fixed circuit is the convenience for narration using two letters.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (10)
1. a kind of capacitor group switching method of reactive power compensation device, reactive power compensation device include controller, special
Sign is：The circuit for detecting load stabilization carries out required capacitance when reactive power compensation, setting at least two groups with it is upper
The identical capacitor group of capacitance is stated, controller controls the circuit of above-mentioned capacitor group circulation access load stabilization.
2. the capacitor group switching method of reactive power compensation device according to claim 1, it is characterised in that：Controller
With automatic control program and non-automatic control program, controller controls above-mentioned capacitor group switching cycle and enters load stabilization
Circuit specifically comprise the following steps,
Capacitor group access point is arranged in step 1 in the circuit of load stabilization；
Step 2, the controller control at least two groups capacitor group enter automatic control program, and controller control at this time is wherein
Simultaneously timing m seconds in the circuit of one capacitor group access load stabilization；
Step 3, after m seconds, controller controls the capacitor group of the above-mentioned circuit for entering load stabilization from the electricity of load stabilization
Non-automatic control program, and timing w seconds are cut off and entered in road；
Step 4, after w seconds, next group capacitor group enters in the circuit of load stabilization simultaneously timing m seconds, and prolongs again at the end of w seconds
When n seconds, n seconds after capacitor group of the controller control in the step 3 in non-automatic control program reenter automatic control journey
Sequence；
Start to repeat at this time step 3 to step 4 process by the circuit of remaining capacitor group switching to load stabilization simultaneously
It is recycled；
Value in above-mentioned step between w, m and n three, which meets, closes w+m > n, and w >=0.
3. the operation/cutting method of reactive power compensation device according to claim 1 or 2 and its capacitor group, feature exist
In：The controller includes single-chip microcontroller.
4. the capacitor group switching method of reactive power compensation device according to claim 2, it is characterised in that：W > 0.
5. the capacitor group switching method of reactive power compensation device according to claim 1 or 2, it is characterised in that：
The capacitor group includes a capacitor.
6. reactive power compensation device, including controller, it is characterised in that：Further include at least two groups and load stabilization circuit into
The identical capacitor group of required capacitance, the controller control above-mentioned capacitor group and follow when row reactive power compensation
Ring switching enters the circuit of load stabilization.
7. reactive power compensation device according to claim 6, it is characterised in that：The controller, which has, automatically controls journey
Sequence and non-automatic control program, controller control the circuit that above-mentioned at least two groups capacitor group switching cycle enters load stabilization
Specifically comprise the following steps,
Capacitor group access point is arranged in step 1 in the circuit of load stabilization；
Step 2, the controller control above-mentioned at least two groups capacitor group and enter automatic control program, controller control at this time
It makes in the circuit of one of capacitor group access load stabilization simultaneously timing m seconds；
Step 3, after m seconds, controller controls the capacitor group of the above-mentioned circuit for entering load stabilization from the electricity of load stabilization
Non-automatic control program, and timing w seconds are cut off and entered in road；
Step 4, after w seconds, next group capacitor group enters in the circuit of load stabilization simultaneously timing m seconds, and the n that is delayed at the end of w seconds
Second, capacitor group in non-automatic control program in of the controller control in step 3 reenters automatic control after n seconds
Processing procedure sequence；
Start to repeat at this time step 3 to step 4 process by the circuit of remaining capacitor group switching to load stabilization simultaneously
It is recycled；
Value in above-mentioned step between w, m and n three, which meets, closes w+m > n, and w >=0.
8. reactive power compensation device according to claim 6 or 7, it is characterised in that：The controller includes monolithic
Machine.
9. reactive power compensation device according to claim 7, it is characterised in that：W > 0.
10. reactive power compensation device according to claim 6 or 7, it is characterised in that：The capacitor group includes one
A capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727946.6A CN108899915B (en) | 2018-07-05 | 2018-07-05 | Reactive power compensation device and switching method of capacitor bank thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727946.6A CN108899915B (en) | 2018-07-05 | 2018-07-05 | Reactive power compensation device and switching method of capacitor bank thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108899915A true CN108899915A (en) | 2018-11-27 |
| CN108899915B CN108899915B (en) | 2021-09-24 |
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| EP1318588A2 (en) * | 2001-11-28 | 2003-06-11 | Abb Ab | A method and a device for compensation of the comsumption of reactive power by an industrial load |
| CN102646985A (en) * | 2011-02-21 | 2012-08-22 | 大连兆阳软件科技有限公司 | Compensating method and control software of electric power reactive tracking compensator |
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| CN103178530A (en) * | 2013-04-15 | 2013-06-26 | 四川极度电控***制造有限责任公司 | Intelligent high-voltage thyristor switched capacitor (TSC) reactive compensation device |
| CN104466991A (en) * | 2014-12-24 | 2015-03-25 | 安徽天沃电气技术有限公司 | Control method for novel thyristor-fast-switched capacitor banks |
| CN107872061A (en) * | 2016-09-28 | 2018-04-03 | 香江科技股份有限公司 | A kind of Intelligent program controlled combines rotation formula power-less compensation control method |
| CN107979097A (en) * | 2017-12-24 | 2018-05-01 | 李莉 | A kind of power capacitor intelligent circulation switching control method |
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2018
- 2018-07-05 CN CN201810727946.6A patent/CN108899915B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1318588A2 (en) * | 2001-11-28 | 2003-06-11 | Abb Ab | A method and a device for compensation of the comsumption of reactive power by an industrial load |
| CN102646985A (en) * | 2011-02-21 | 2012-08-22 | 大连兆阳软件科技有限公司 | Compensating method and control software of electric power reactive tracking compensator |
| CN202997575U (en) * | 2012-11-20 | 2013-06-12 | 北京格瑞特斯科技有限公司 | Power capacitor intelligent circulating switch control device |
| CN103178530A (en) * | 2013-04-15 | 2013-06-26 | 四川极度电控***制造有限责任公司 | Intelligent high-voltage thyristor switched capacitor (TSC) reactive compensation device |
| CN104466991A (en) * | 2014-12-24 | 2015-03-25 | 安徽天沃电气技术有限公司 | Control method for novel thyristor-fast-switched capacitor banks |
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| CN107979097A (en) * | 2017-12-24 | 2018-05-01 | 李莉 | A kind of power capacitor intelligent circulation switching control method |
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| CN108899915B (en) | 2021-09-24 |
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