CN109494758A - A kind of fine reactive compensation control system and its method - Google Patents
A kind of fine reactive compensation control system and its method Download PDFInfo
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- CN109494758A CN109494758A CN201811631271.1A CN201811631271A CN109494758A CN 109494758 A CN109494758 A CN 109494758A CN 201811631271 A CN201811631271 A CN 201811631271A CN 109494758 A CN109494758 A CN 109494758A
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- compensation
- module
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- phase
- control
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Classifications
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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
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- 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
Abstract
The invention discloses a kind of fine reactive compensation control system and its methods, including control centre, compensation system and judge system, the control centre controls compensation system and judgement system, the mutual transmission of data is able to carry out between the compensation system and the judgement system, the judgement system includes the current detection module for detection system electric current, voltage detection module for detection system voltage, for sending and receiving the wireless communication module of instruction with control centre and for the feedback module to control centre and compensation system feedback information, the compensation system includes for guaranteeing the continuous reactive compensation demand fixed compensation module of systems stay, for improving the phase splitting compensation module of power supply quality, three-phase compensating module and arrester module, the control centre includes the instruction sending module for sending instruction, for connecing Receive the wireless receiving module, the display module for showing various data and the alarm module for alarming under abnormal conditions of various information.
Description
Technical field
The present invention relates to power grid field of energy-saving technology more particularly to a kind of fine reactive compensation control system and its methods.
Background technique
With the development of national economy, the task of State Grid's industry is also more arduous, now electric due to industrial expansion
Reactive loss in net increased dramatically, and deteriorate grid power quality, while also aggravate the burden and loss of line and transformer.
Nowadays country just advocates energy-saving and emission-reduction, therefore the reactive compensation in power grid has attracted more concerns.No matter industrial load or
Appliance load, the wherein biggish ratio of inductive load all accountings, such as transformer, asynchronous machine and many household electrical appliance are all
Inductive load.The natural power factor of these loads is lower, and reactive power consumed by it ties up in the electricity in power transmission
Account for very high ratio.The increase of reactive power in route will lead to the reduction of power factor, lead to the increase and system of electric current
The decline of voltage leads to the loss of a large amount of electric energy to increase the loss of route and equipment.Existing power power compensation includes
Phase splitting compensation and three-phase compensation, wherein the phase splitting compensation confession inconsistent applied to the fluctuation of three-phase load unbalance or three-phase load
Distribution system, and three-phase compensation is applied to the power supply-distribution system of three-phrase burden balance.But when three-phase load in power supply-distribution system
When not knowing under balance, then single phase splitting compensation or three-phase compensation are all unable to satisfy the requirement of reactive compensation, can not be right
Electric system provides a steady and sustained compensation, causes circuit control inconvenient, high failure rate and power supply efficiency is lower.
Summary of the invention
The invention proposes a kind of fine reactive compensation control system and its methods.
To achieve the goals above, present invention employs following technical solutions:
A kind of fine reactive compensation control system, including control centre, compensation system and judge system, the control centre
Compensation system and judgement system are controlled, the mutual biography of data is able to carry out between the compensation system and the judgement system
It send, the judgement system includes for the current detection module of detection system electric current, for the voltage detecting of detection system voltage
Module, the wireless communication module for sending and receiving instruction with control centre and for being fed back to control centre and compensation system
The feedback module of information, the compensation system include for guaranteeing the continuous reactive compensation demand fixed compensation mould of systems stay
Block, the phase splitting compensation module for improving power supply quality, three-phase compensating module and arrester module, the control centre include using
In the instruction sending module of transmission instruction, the wireless receiving module for receiving various information, for showing the aobvious of various data
Show module and the alarm module for alarming under abnormal conditions.
Further, the fixed compensation module includes the second control switch being sequentially connected in series and the first three-phase compensating electric capacity
Device.
Further, the phase splitting compensation includes third control switch, first contactor and the individual event compensation being sequentially connected in series
Capacitor.
Further, the three-phase compensating module includes the 4th control switch, the second contactor and second being sequentially connected in series
Three-phase compensation capacitor.
Further, after first three-phase compensation capacitor, individual event compensation capacitor and the second three-phase compensation capacitor
It is respectively connected with fault detector.
Further, the current detection module is current detection sensor, and the voltage detection module is voltage detecting
Sensor.
Further, the wireless receiving module of the control centre is connected with the wireless communication module for judging system.
A kind of fine power-less compensation control method, comprising the following steps:
Step 1: control centre controls the current detection module and voltage detection module of judgement system, judges that next stage is matched
Whether electric system occurs short trouble or ground fault；
Step 2: if judging, system judges that short trouble or ground fault occur for junior's distribution system, judges that system passes through
Wireless communication module transmits information to the wireless receiving module of control centre；
Step 3: after the wireless receiving module of control centre receives instruction, pass through instruction sending module order compensation system
It opens；
Step 4: after compensation system is opened, electricity is compensated by the first three-phase in the fixed compensation module in compensation system
The second three-phase compensation capacitor in individual event compensation capacitor, three-phase compensating module in container, phase splitting compensation module is to power grid
Power factor be adjusted, to reduce loss.
Further, the first three-phase compensation capacitor in the road of the fixed compensation in the step 4 passes through the second open circuit
Device is directly connected with the main line of compensation branch.
Further, after compensation system is opened in step 4, if the fault detector response that compensation system summarizes, compensation
System can send information to judgement system and control centre, be checked in time to failure.
Usefulness: low-pressure reactive compensation control system of the present invention improves the power factor of power grid, reduces
The loss of supply transformer and conveying circuit, improves power supply efficiency, improves power supply environment；By using fault detector,
It can show the part broken down, maintenance personal can quickly find the area to break down according to the alarm signal of the indicator
Fault section is opened in section, disjunction, to restore the power supply of fault-free section in time, can be saved a large amount of working time, is reduced and is had a power failure
Time and scope of power outage.
Detailed description of the invention
Fig. 1 is system schematic of the invention.
In figure: 1 control centre, 2 compensation systems, 3 judge system, 4 instruction sending modules, 5 wireless receiving modules, 6 displays
Module, 7 alarm modules, 8 current detection modules, 9 voltage detection modules, 10 wireless communication modules, 11 feedback modules, 12 arresters
Module, 13 three-phase compensating modules, 14 phase splitting compensations, 15 fixed compensation modules.
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.
Embodiment 1:
Referring to Fig.1, a kind of fine reactive compensation control system, including control centre 1, compensation system 2 and judge system 3,
The control centre 1 controls compensation system 2 and judgement system 3, can between the compensation system 2 and the judgement system 3
The mutual transmission of data is carried out, the judgement system 3 includes for the current detection module 8 of detection system electric current, for detecting
The voltage detection module 9 of system voltage, the wireless communication module 10 for sending and receiving instruction with control centre 1 and for
The feedback module 11 of 2 feedback information of control centre 1 and compensation system, the compensation system 2 include for guaranteeing systems stay not
Disconnected reactive compensation demand fixed compensation module, the phase splitting compensation module 14 for improving power supply quality, three-phase compensating module 13
With arrester module 12, the control centre 1 includes for sending the instruction sending module 4 of instruction, for receiving various information
Wireless receiving module 5, the display module 6 for showing various data and the alarm module 7 for alarming under abnormal conditions.
Embodiment 2:
Referring to Fig.1: a kind of fine reactive compensation control system, including control centre 1, compensation system 2 and judge system 3,
The control centre 1 controls compensation system 2 and judgement system 3, can between the compensation system 2 and the judgement system 3
The mutual transmission of data is carried out, the judgement system 3 includes for the current detection module 8 of detection system electric current, for detecting
The voltage detection module 9 of system voltage, the wireless communication module 10 for sending and receiving instruction with control centre 1 and for
The feedback module 11 of 2 feedback information of control centre 1 and compensation system, the compensation system 2 include for guaranteeing systems stay not
Disconnected reactive compensation demand fixed compensation module, the phase splitting compensation module 14 for improving power supply quality, three-phase compensating module 13
With arrester module 12, the control centre 1 includes for sending the instruction sending module 4 of instruction, for receiving various information
Wireless receiving module 5, the display module 6 for showing various data and the alarm module 7 for alarming under abnormal conditions.Institute
Stating fixed compensation module 15 includes the second control switch being sequentially connected in series and the first three-phase compensation capacitor.The phase splitting compensation 14
Including the third control switch, first contactor and individual event compensation capacitor being sequentially connected in series.The three-phase compensating module 1313 wraps
Include the 4th control switch, second contactor and the second three-phase compensation capacitor being sequentially connected in series.
Embodiment 3:
Referring to Fig.1: a kind of fine reactive compensation control system, including control centre 1, compensation system 2 and judge system 3,
The control centre 1 controls compensation system 2 and judgement system 3, can between the compensation system 2 and the judgement system 3
The mutual transmission of data is carried out, the judgement system 3 includes for the current detection module 8 of detection system electric current, for detecting
The voltage detection module 9 of system voltage, the wireless communication module 10 for sending and receiving instruction with control centre 1 and for
The feedback module 11 of 2 feedback information of control centre 1 and compensation system, the compensation system 2 include for guaranteeing systems stay not
Disconnected reactive compensation demand fixed compensation module, the phase splitting compensation module 14 for improving power supply quality, three-phase compensating module 13
With arrester module 12, the control centre 1 includes for sending the instruction sending module 4 of instruction, for receiving various information
Wireless receiving module 5, the display module 6 for showing various data and the alarm module 7 for alarming under abnormal conditions.Institute
Stating fixed compensation module 15 includes the second control switch being sequentially connected in series and the first three-phase compensation capacitor.The phase splitting compensation 14
Including the third control switch, first contactor and individual event compensation capacitor being sequentially connected in series.The three-phase compensating module 1313 wraps
Include the 4th control switch, second contactor and the second three-phase compensation capacitor being sequentially connected in series.The first three-phase compensating electric capacity
Fault detector is respectively connected with after device, individual event compensation capacitor and the second three-phase compensation capacitor.
Embodiment 4:
Referring to Fig.1: a kind of fine reactive compensation control system, including control centre 1, compensation system 2 and judge system 3,
The control centre 1 controls compensation system 2 and judgement system 3, can between the compensation system 2 and the judgement system 3
The mutual transmission of data is carried out, the judgement system 3 includes for the current detection module 8 of detection system electric current, for detecting
The voltage detection module 9 of system voltage, the wireless communication module 10 for sending and receiving instruction with control centre 1 and for
The feedback module 11 of 2 feedback information of control centre 1 and compensation system, the compensation system 2 include for guaranteeing systems stay not
Disconnected reactive compensation demand fixed compensation module, the three-phase for improving power supply quality compensate branch, 13 and of three-phase compensating module
Arrester module 12, the control centre 1 include for sending the instruction sending module 4 of instruction, for receiving various information
Wireless receiving module 5, the display module 6 for showing various data and the alarm module 7 for alarming under abnormal conditions.It is described
Fixed compensation module 15 includes the second control switch being sequentially connected in series and the first three-phase compensation capacitor.The phase splitting compensation 14 wraps
Include the third control switch, first contactor and individual event compensation capacitor being sequentially connected in series.The three-phase compensating module 1313 includes
The 4th control switch, second contactor and the second three-phase compensation capacitor being sequentially connected in series.First three-phase compensation capacitor,
Fault detector is respectively connected with after individual event compensation capacitor and the second three-phase compensation capacitor.The current detection module 8 is electricity
Detection sensor is flowed, the voltage detection module 9 is voltage detecting sensor.The wireless receiving module 5 of the control centre 1 with
The wireless communication module 10 of judgement system 3 is connected
Embodiment 5:
Referring to Fig.1: a kind of fine power-less compensation control method, comprising the following steps:
Step 1: control centre 1 controls the current detection module 8 and voltage detection module 9 of judgement system 3, judges next
Whether grade distribution system occurs short trouble or ground fault；
Step 2: if judging, system 3 judges that short trouble or ground fault occur for junior's distribution system, judges that system 3 is logical
Cross the wireless receiving module 5 that wireless communication module 10 transmits information to control centre 1；
Step 3: after the wireless receiving module 5 of control centre 1 receives instruction, compensation system is ordered by instruction sending module 4
System 2 is opened；
Step 4: it after compensation system 2 is opened, is compensated by the first three-phase in the fixed compensation module in compensation system 2
Capacitor, the individual event compensation capacitor in three-phase compensation branch, the second three-phase compensation capacitor pair in three-phase compensating module 13
The power factor of power grid is adjusted, to reduce loss.
Embodiment 6:
Referring to Fig.1: a kind of fine power-less compensation control method, comprising the following steps:
Step 1: control centre 1 controls the current detection module 8 and voltage detection module 9 of judgement system 3, judges next
Whether grade distribution system occurs short trouble or ground fault；
Step 2: if judging, system 3 judges that short trouble or ground fault occur for junior's distribution system, judges that system 3 is logical
Cross the wireless receiving module 5 that wireless communication module 10 transmits information to control centre 1；
Step 3: after the wireless receiving module 5 of control centre 1 receives instruction, compensation system is ordered by instruction sending module 4
System 2 is opened；
Step 4: it after compensation system 2 is opened, is compensated by the first three-phase in the fixed compensation module in compensation system 2
Capacitor, the individual event compensation capacitor in three-phase compensation branch, the second three-phase compensation capacitor pair in three-phase compensating module 13
The power factor of power grid is adjusted, to reduce loss.The first three-phase in the road of fixed compensation in the step 4 is mended
It repays capacitor and is directly connected with the main line of compensation branch by the second breaker.In step 4, after compensation system 2 is opened, compensation
If the fault detector response that system 2 summarizes, compensation system 2 can send information to judgement system 3 and control centre 1,
Failure is checked in time.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of fine reactive compensation control system, it is characterised in that: including control centre, compensation system and judge system, institute
It states control centre and controls compensation system and judgement system, be able to carry out data between the compensation system and the judgement system
Mutual transmission, the judgement system includes for the current detection module of detection system electric current, for detection system voltage
Voltage detection module, the wireless communication module for sending and receiving instruction with control centre and for control centre and compensation
The feedback module of system feedback information, the compensation system include for guaranteeing that the continuous reactive compensation demand of systems stay is fixed
Compensating module, the phase splitting compensation module for improving power supply quality, three-phase compensating module and arrester module, the control centre
Including the instruction sending module for sending instruction, the wireless receiving module for receiving various information, for showing various numbers
According to display module and alarm module for alarming under abnormal conditions.
2. a kind of fine reactive compensation control system according to claim 1, which is characterized in that the fixed compensation module
Including the second control switch being sequentially connected in series and the first three-phase compensation capacitor.
3. a kind of fine reactive compensation control system according to claim 1, which is characterized in that the phase splitting compensation includes
Third control switch, first contactor and the individual event compensation capacitor being sequentially connected in series.
4. a kind of fine reactive compensation control system according to claim 1, which is characterized in that the three-phase compensating module
Including the 4th control switch, second contactor and the second three-phase compensation capacitor being sequentially connected in series.
5. a kind of fine reactive compensation control system according to claim 1, which is characterized in that the first three-phase compensation
Fault detector is respectively connected with after capacitor, individual event compensation capacitor and the second three-phase compensation capacitor.
6. a kind of fine reactive compensation control system according to claim 1, which is characterized in that the current detection module
For current detection sensor, the voltage detection module is voltage detecting sensor.
7. a kind of vehicle combination bracket assembly according to claim 1, which is characterized in that the control centre wirelessly connects
Module is received to be connected with the wireless communication module for judging system.
8. a kind of power-less compensation control method fine as described in any one in claim 1-7, it is characterised in that: including following
Step:
Step 1: control centre controls the current detection module and voltage detection module of judgement system, judges next stage power distribution system
Whether system occurs short trouble or ground fault；
Step 2: if judging, system judges that short trouble or ground fault occur for junior's distribution system, and it is wireless to judge that system passes through
Communication module transmits information to the wireless receiving module of control centre；
Step 3: it after the wireless receiving module of control centre receives instruction, is opened by instruction sending module order compensation system；
Step 4: after compensation system is opened, by the first three-phase compensation capacitor in the fixed compensation module in compensation system,
The power of the second three-phase compensation capacitor in individual event compensation capacitor, three-phase compensating module in phase splitting compensation module to power grid
Factor is adjusted, to reduce loss.
9. a kind of fine power-less compensation control method according to claim 8, which is characterized in that consolidating in the step 4
The first three-phase compensation capacitor in the road of fixed compensation is directly connected with the main line of compensation branch by the second breaker.
10. a kind of fine power-less compensation control method according to claim 8, which is characterized in that compensate system in step 4
System open after, if compensation system summarize fault detector response, compensation system can send information to judgement system and
Control centre checks failure in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631271.1A CN109494758A (en) | 2018-12-29 | 2018-12-29 | A kind of fine reactive compensation control system and its method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811631271.1A CN109494758A (en) | 2018-12-29 | 2018-12-29 | A kind of fine reactive compensation control system and its method |
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| CN109494758A true CN109494758A (en) | 2019-03-19 |
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| CN201811631271.1A Pending CN109494758A (en) | 2018-12-29 | 2018-12-29 | A kind of fine reactive compensation control system and its method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203871866U (en) * | 2014-05-27 | 2014-10-08 | 国家电网公司 | Low-voltage reactive compensation control system |
| US20170350924A1 (en) * | 2016-06-07 | 2017-12-07 | Lsis Co., Ltd. | Device for measuring loss in reactive power compensation system |
| CN108649588A (en) * | 2018-06-25 | 2018-10-12 | 湖北工业大学 | A kind of communication-type intelligent powerless compensation comprehensive treatment device |
-
2018
- 2018-12-29 CN CN201811631271.1A patent/CN109494758A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203871866U (en) * | 2014-05-27 | 2014-10-08 | 国家电网公司 | Low-voltage reactive compensation control system |
| US20170350924A1 (en) * | 2016-06-07 | 2017-12-07 | Lsis Co., Ltd. | Device for measuring loss in reactive power compensation system |
| CN108649588A (en) * | 2018-06-25 | 2018-10-12 | 湖北工业大学 | A kind of communication-type intelligent powerless compensation comprehensive treatment device |
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Application publication date: 20190319 |