CN208874295U - A kind of intelligence series compensation device - Google Patents
A kind of intelligence series compensation device Download PDFInfo
- Publication number
- CN208874295U CN208874295U CN201821732091.8U CN201821732091U CN208874295U CN 208874295 U CN208874295 U CN 208874295U CN 201821732091 U CN201821732091 U CN 201821732091U CN 208874295 U CN208874295 U CN 208874295U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- circuit
- microcontroller
- module
- voltage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of intelligent series compensation device, it is provided with monitoring device, the capacitor Cm both end voltage of voltage transformer pt acquisition is output to microcontroller after filter circuit is handled, digital voltage signal and location information are sent control centre by module to microcontroller by wireless communication, monitoring and scheduling center passes through monitoring capacitor both end voltage variation, understand tandem arrangement working condition, when the increase of short trouble capacitor voltage at both ends occurs for distribution network line, capacitor is cut off from power distribution network, control centre can be recognized by voltage change, failure has occurred in power distribution network, and including the location information of tandem arrangement in information, accurately positioning failure position can occur for control centre, quickly rush to position handling failure of meeting accident, power supply is replied as early as possible, economic loss is preferably minimized.
Description
Technical field
The utility model belongs to T & D Technology field, is related to a kind of intelligent series compensation device.
Background technique
Series compensation is usually the series capacitor in power circuit, is by offsetting a part of line reactance value to change
Unite parameter, transmission line capability can be improved in power transmission network, for the distribution network of long range distribution line, improve along electricity
Press quality.When series circuit compensating electric capacity downstream load weight, transimission power is larger in route, and series capacitor compensation is reconciled
Effect is more obvious；When system loading is in reduced levels, the part compensated by series compensation is smaller, series capacitor compensation have compared with
The voltage mediating effect+6 of good " adaptive ", this is the maximum feature and advantage of series capacitor compensation.
Series compensation device safe and reliable operation directly influences the transmission of electricity quality of power distribution network, existing tandem arrangement,
When short trouble occurs for distribution network line, when capacitor voltage at both ends increased dramatically, in order to avoid damaging tandem arrangement, protection dress
The information that capacitor is cut off from power distribution network, but in time do not cut off tandem arrangement by movement is set to feed back into scheduling
The heart, does not issue timely early warning to dispatcher, and staff is difficult to accurately find the tandem arrangement or distribution cut off
The part of path that net breaks down causes failure that cannot exclude in time, causes certain economic loss to power distribution network transmission of electricity.
Utility model content
The purpose of this utility model is to provide a kind of intelligent series compensation devices, acquire capacitor two by monitoring device
Terminal voltage signal, and tandem arrangement working condition is timely feedbacked, failure is quickly found when power distribution network breaks down, and is reduced economical
Loss.
The utility model uses following scheme to achieve the above object:
It is a kind of intelligence series compensation device, including the first isolation switch DL1, the second isolation switch DL2, by-pass knife switch DL3,
Capacitor Cm, protective device, Current Transmit, voltage transformer pt and monitoring device；
The both ends capacitor Cm are connected in parallel on after first isolation switch DL1, by-pass knife switch DL3 and the second isolation switch DL2 series connection；
Current Transmit is connect for measuring capacitor branches electric current with capacitor Cm, and voltage transformer pt is connected in parallel on capacitor Cm two
End measurement capacitor voltage at both ends, protective device are connected in parallel on the both ends capacitor Cm；
Monitoring device is connect with voltage transformer pt, and monitoring device includes filter circuit, analog-to-digital conversion and sample circuit, micro-
Controller MCU, GPS module and wireless communication module；The capacitor Cm both end voltage of voltage transformer pt acquisition is through filter circuit
It is output to analog-to-digital conversion and sample circuit after processing, analog-to-digital conversion and sample circuit are converted into digital voltage through analog voltage signal
Signal is simultaneously output to microcontroller, and microcontroller is connect with GPS module and wireless communication module, by wireless communication mould
Digital voltage signal and location information are sent control centre by block.
Further, monitoring device is provided with power circuit, and power circuit connect with voltage transformer pt and takes electricity.
Further, monitoring device is provided with independent power module, power module respectively with filter circuit, analog-to-digital conversion and
Sample circuit, microcontroller, GPS module and wireless communication module connect power supply.
Further, the microcontroller is connected with electrical/optical conversion module, and electrical/optical conversion module is connected with fiber data
Transmission circuit.
Further, the filter circuit is connected with photoelectrical coupler, and filter circuit passes through photoelectrical coupler and analog-to-digital conversion
And sample circuit connection.
Further, microcontroller is connected with alarm module.
Further, the protective device includes the Zinc-Oxide Arrester MOV for being connected in parallel on the both ends capacitor Cm, further includes a pair
Reverse parallel connection thyristor, thyristor in parallel are connected in parallel on capacitor both ends after connecting with current limliting damping circuit R-L.
Further, the current limliting damping circuit R-L is made of concatenated resistance and inductance.
The intelligent series compensation device of the utility model, is provided with monitoring device, and monitoring device includes analog-to-digital conversion and adopts
Sample circuit, microcontroller, GPS module and wireless communication module；The capacitor Cm both end voltage warp of voltage transformer pt acquisition
Be output to microcontroller after filter circuit processing, microcontroller by wireless communication module by digital voltage signal and position
Confidence, which ceases, is sent to control centre, and monitoring and scheduling center understands tandem arrangement work shape by monitoring capacitor both end voltage variation
Condition, when the increase of short trouble capacitor voltage at both ends occurs for distribution network line, capacitor is cut off from power distribution network, and control centre passes through
Voltage change can recognize that failure has occurred in power distribution network, and include the location information of tandem arrangement in information, in scheduling
Accurately positioning failure position can occur for the heart, quickly rush to position handling failure of meeting accident, power supply is replied as early as possible, by economic loss
It is preferably minimized.
Further, monitoring device is provided with power circuit, and power distribution network directly takes when working normally from monitoring device from power grid
Electricity, while it being provided with independent power module, when power distribution network breaks down, it is monitoring device power supply by power module, protects
Monitoring device is demonstrate,proved to work normally.
Further, monitoring device setting wireless communication module transmits information to control centre, micro-control by Wi-Fi
Device MCU processed is also connected with electrical/optical conversion module, and electrical/optical conversion module is connected with fiber data transmission circuit, can be by optical cable
Communication, information transmission is relatively reliable, safety.
Detailed description of the invention
Fig. 1 the utility model overall structure block diagram；
Monitoring device functional block diagram in Fig. 2 the utility model；
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as practical to this
Novel restriction.
As shown in Figure 1, the intelligent series compensation device of the utility model, including the first isolation switch DL1, the second isolation knife
Lock DL2, by-pass knife switch DL3, capacitor Cm, protective device, Current Transmit, voltage transformer pt and monitoring device；
The both ends capacitor Cm are connected in parallel on after first isolation switch DL1, by-pass knife switch DL3 and the second isolation switch DL2 series connection；
Current Transmit is connect for measuring capacitor branches electric current with capacitor Cm, and voltage transformer pt is connected in parallel on capacitor Cm two
End measurement capacitor voltage at both ends, protective device are connected in parallel on the both ends capacitor Cm.
As shown in Fig. 2, monitoring device is connect with voltage transformer pt, monitoring device include filter circuit 1, analog-to-digital conversion and
Sample circuit 2, microcontroller 3, GPS module 6 and wireless communication module 4；The capacitor Cm two of voltage transformer pt acquisition
End voltage is output to analog-to-digital conversion and sample circuit 2 after the processing of filter circuit 1, and analog-to-digital conversion and sample circuit 2 are through simulation electricity
Pressure signal is converted into digital voltage signal and is output to microcontroller 3, microcontroller 3 and GPS module and channel radio
Believe module connection, digital voltage signal and location information are sent control centre by module by wireless communication.
Monitoring device is provided with power circuit, and power circuit connect with voltage transformer pt and takes electricity.Monitoring device is provided with
Independent power module, power module respectively with filter circuit 1, analog-to-digital conversion and sample circuit 2, microcontroller 3, GPS
Module 6 and the connection power supply of wireless communication module 4.
Further, the microcontroller 3 is connected with electrical/optical conversion module, and electrical/optical conversion module is connected with fiber count
According to transmission circuit.
Filter circuit 1 is connected with photoelectrical coupler, and filter circuit 1 passes through photoelectrical coupler and analog-to-digital conversion and sample circuit
2 connections.By optocoupler by voltage transformer and microcontroller isolation of system, the accuracy for influencing acquisition signal is avoided.
Further, microcontroller 3 is connected with alarm module 5 and sounds an alarm when tandem arrangement and power distribution network are cut off,
Easy access personnel find position.
Further, protective device includes the Zinc-Oxide Arrester MOV for being connected in parallel on the both ends capacitor Cm, further includes a pair of reversed
Parallel thyristors, thyristor in parallel are connected in parallel on capacitor both ends after connecting with current limliting damping circuit R-L.Current limliting damping circuit R-
L is made of concatenated resistance and inductance.
Finally it should be noted that: above embodiments are merely to illustrate the technical solution of the utility model rather than limit it
System, although the utility model is described in detail referring to above-described embodiment, those of ordinary skill in the art should be managed
Solution: specific implementation of the utility model can still be modified or equivalent replacement, and without departing from the utility model
Any modification of spirit and scope or equivalent replacement should all cover in present claims range.
Claims (8)
1. a kind of intelligence series compensation device, it is characterised in that: including the first isolation switch DL1, the second isolation switch DL2, side
Road disconnecting link DL3, capacitor Cm, protective device, Current Transmit, voltage transformer pt and monitoring device；
The both ends capacitor Cm are connected in parallel on after first isolation switch DL1, by-pass knife switch DL3 and the second isolation switch DL2 series connection；Electric current
Mutual inductor CT is connect for measuring capacitor branches electric current with capacitor Cm, and voltage transformer pt is connected in parallel on the survey of the both ends capacitor Cm
Capacitor voltage at both ends is measured, protective device is connected in parallel on the both ends capacitor Cm；
Monitoring device is connect with voltage transformer pt, monitoring device include filter circuit (1), analog-to-digital conversion and sample circuit (2),
Microcontroller (3), GPS module (6) and wireless communication module (4)；The capacitor Cm both end voltage of voltage transformer pt acquisition
Analog-to-digital conversion and sample circuit (2) are output to after filter circuit (1) processing, analog-to-digital conversion and sample circuit (2) are through simulation electricity
Pressure signal is converted into digital voltage signal and is output to microcontroller (3), and microcontroller (3) is with GPS module and wirelessly
Communication module connection, digital voltage signal and location information are sent control centre by module by wireless communication.
2. intelligence series compensation device as described in claim 1, it is characterised in that: monitoring device is provided with power circuit, electricity
Source circuit connect with voltage transformer pt and takes electricity.
3. intelligence series compensation device as claimed in claim 2, it is characterised in that: monitoring device is provided with independent power supply mould
Block, power module respectively with filter circuit (1), analog-to-digital conversion and sample circuit (2), microcontroller (3), GPS module (6)
It connects and powers with wireless communication module (4).
4. intelligence series compensation device as described in any one of claims 1-3, it is characterised in that: the microcontroller (3)
It is connected with electrical/optical conversion module, electrical/optical conversion module is connected with fiber data transmission circuit.
5. intelligence series compensation device as described in any one of claims 1-3, it is characterised in that: the filter circuit (1) is even
It is connected to photoelectrical coupler, filter circuit (1) is connect by photoelectrical coupler with analog-to-digital conversion and sample circuit (2).
6. intelligence series compensation device as described in any one of claims 1-3, it is characterised in that: microcontroller (3) connection
There are alarm module (5).
7. intelligence series compensation device as claimed in claim 6, it is characterised in that: the protective device includes being connected in parallel on capacitor
The Zinc-Oxide Arrester MOV at the both ends device Cm further includes a pair of of reverse parallel connection thyristor, thyristor in parallel and current limliting damping circuit
Capacitor both ends are connected in parallel on after R-L series connection.
8. intelligence series compensation device as claimed in claim 7, it is characterised in that: the current limliting damping circuit R-L is by connecting
Resistance and inductance composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732091.8U CN208874295U (en) | 2018-10-24 | 2018-10-24 | A kind of intelligence series compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732091.8U CN208874295U (en) | 2018-10-24 | 2018-10-24 | A kind of intelligence series compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208874295U true CN208874295U (en) | 2019-05-17 |
Family
ID=66470880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821732091.8U Expired - Fee Related CN208874295U (en) | 2018-10-24 | 2018-10-24 | A kind of intelligence series compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208874295U (en) |
-
2018
- 2018-10-24 CN CN201821732091.8U patent/CN208874295U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20191024 |