CN207730880U - A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock - Google Patents
A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock Download PDFInfo
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- CN207730880U CN207730880U CN201721763644.1U CN201721763644U CN207730880U CN 207730880 U CN207730880 U CN 207730880U CN 201721763644 U CN201721763644 U CN 201721763644U CN 207730880 U CN207730880 U CN 207730880U
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Abstract
The utility model provides a kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock, it is characterized in that, including monitoring host computer, clock synchronizes partial discharge measurement and positioning device and signal measurement module, multiple signal measurement modules are evenly arranged on high-tension cable, each signal measurement module is connected separately with clock and synchronizes partial discharge measurement and positioning device, the discharge current signal and operating frequency phase signal of high-tension cable are acquired by signal measurement module, and it is transmitted to clock and synchronizes partial discharge measurement and positioning device, multiple clocks pass through too net cable cascade Connection between synchronizing partial discharge measurement and positioning device, clock synchronizes partial discharge measurement and positioning device and sends data to monitoring host computer by wireless network, the display and storage of data are carried out by monitoring host computer.
Description
Technical field
The utility model is related to a kind of partial discharge measurement and positioning system more particularly to a kind of height synchronized based on high precision clock
Voltage cable partial discharge measurement and positioning system.
Background technology
As sustained economic growth, urban distribution network are grown rapidly, the quantity that cable run puts into operation is quickly increasing.Electricity
The operation conditions of cable directly influences the safety of electric system.In numerous cable monitoring means, shelf depreciation test can
Relatively intuitive effective reflection influences the defect of cable life and safe operation.Shelf depreciation is as Voltage Cable Lines Construction insulation fault
The main forms of early stage are both the main reason for causing insulation ag(e)ing and the main characteristic parameters of characterization insulation status,
It is significant to Fault Diagnosis for Electrical Equipment.
Shelf depreciation technology is in the extensive use of cable monitoring running state, but there are localization of fault precision mostly
Problem not high, noise filtering is difficult.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of height synchronized based on high precision clock
Voltage cable partial discharge measurement and positioning system,.
Technical solution used by the utility model is：
A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock, including monitoring host computer, clock are same
Partial discharge measurement and positioning device and signal measurement module are walked, multiple signal measurement modules, Mei Gexin are evenly arranged on high-tension cable
Number measurement module is connected separately with clock and synchronizes partial discharge measurement and positioning device, passes through signal measurement module and acquires putting for high-tension cable
Electric current signal and operating frequency phase signal, and be transmitted to clock and synchronize partial discharge measurement and positioning device, multiple clocks synchronize partial discharge and survey
It measures between positioning device through too net cable cascade Connection, clock synchronizes partial discharge measurement and positioning device by wireless network by data
It is transmitted to monitoring host computer, the display and storage of data are carried out by monitoring host computer.
Further, the signal measurement module includes HF current transformer and power current mutual inductor, the high frequency
Current transformer, the discharge current signal for acquiring high-tension cable；The power current mutual inductor, for acquiring high-tension cable
Operating frequency phase signal.
Further, it includes master control FPGA unit, AD conversion unit, letter that the clock, which synchronizes partial discharge measurement and positioning device,
Number conditioning unit and communication unit, the signal condition unit are connect with HF current transformer, power current mutual inductor respectively,
Discharge current signal for acquiring high-tension cable from HF current transformer, power current mutual inductor and operating frequency phase letter
Number；The current signal of high-tension cable and operating frequency phase signal are converted into data by AD conversion unit, and are transmitted to master control
FPGA unit is filtered, the master control FPGA unit by communication unit will treated data transmission to monitoring master
Machine, meanwhile, by treated, data are stored to data buffer storage unit.
Further, it further includes clock synchronization unit that the clock, which synchronizes partial discharge measurement and positioning device, and the clock synchronizes
Unit includes clock generator, receives the sync message agreement of monitoring host computer transmission by communication unit and parses acquisition clock letter
Number, and clock signal is sent to master control FPGA unit；Clock signal is sent to clock generator, clock by master control FPGA unit
Clock signal is divided into multi-path synchronous clock signal by generator, and is transferred to master control FPGA unit, and master control FPGA unit passes through logical
Believe that multi-path synchronous clock signal transmission is synchronized partial discharge measurement and positioning device by unit to other clocks.
Further, the communication unit includes first time protocol transceiver, uplink network interface, the second time protocol
Transceiver and downstream network interface, the first time protocol transceiver are sent by uplink network interface monitoring host computer
Sync message agreement simultaneously parses acquisition clock signal, and clock signal is sent to master control FPGA unit；The master control FPGA is mono-
The multi-path synchronous clock signal received is sent to the second time protocol transceiver by member, and the second time protocol transceiver is logical
It crosses downstream network interface and synchronizing clock signals is sent to other clocks synchronization partial discharge measurement and positioning device.
Further, it further includes Power Management Unit that the clock, which synchronizes partial discharge measurement and positioning device, the power management
Unit is used to provide operating voltage to master control FPGA unit, AD conversion unit, signal condition unit and clock synchronization unit；Institute
Power Management Unit is stated to be made of rectifier circuit, energy acquisition circuit and DC/DC circuits.
Compared with prior art, the utility model has the beneficial effects that：
The discharge current that the utility model acquires high-tension cable by HF current transformer and power current mutual inductor is believed
Number and operating frequency phase signal, the partial discharge data that partial discharge measurement and positioning device acquires high-tension cable are synchronized using clock, and are filtered
Wave processing, and by treated, partial discharge data transmission shows and stores to monitoring host computer, effectively filters out line-hit and environment is made an uproar
Sound greatly improves cable fault spot placement accuracy, synchronizes partial discharge measurement and positioning device cascade Connection by multiple clocks, adopts
The clock that partial discharge measurement and positioning device is synchronized with each clock in clock synchronization unit realization system synchronizes.
Description of the drawings
Fig. 1 is the high-tension cable partial discharge measurement and positioning system structure signal synchronized based on high precision clock of the utility model
Figure；
Fig. 2 is that the clock of the utility model synchronizes partial discharge measurement and positioning apparatus structure schematic diagram；
Fig. 3 is the communication unit structural schematic diagram of the utility model.
Specific implementation mode
The utility model is further illustrated below in conjunction with the accompanying drawings.
In a kind of typical embodiment of the application, as shown in Figs. 1-2, provide a kind of based on high precision clock synchronization
High-tension cable partial discharge measurement and positioning system, including monitoring host computer, clock synchronize partial discharge measurement and positioning device and signal measurement mould
Block, is evenly arranged multiple signal measurement modules on high-tension cable, and each signal measurement module is connected separately with clock synchronization office
Measurement and positioning device is put, the discharge current signal and operating frequency phase signal of high-tension cable are acquired by signal measurement module, and is passed
It transports to clock and synchronizes partial discharge measurement and positioning device, multiple clocks are cascaded between synchronizing partial discharge measurement and positioning device by too net cable
Connection, clock synchronize partial discharge measurement and positioning device monitoring host computer is sent data to by wireless network, by monitoring host computer into
The display and storage of row data.
In the present embodiment, the monitoring host computer uses computer, for shelf depreciation characterization parameter and various statistics
Characteristic parameter shows and stores.
In the present embodiment, the signal measurement module includes HF current transformer and power current mutual inductor, described
HF current transformer, the discharge current signal for acquiring high-tension cable；The power current mutual inductor, for acquiring high pressure
The operating frequency phase signal of cable.
Further, it includes master control FPGA unit, AD conversion unit, letter that the clock, which synchronizes partial discharge measurement and positioning device,
Number conditioning unit and communication unit, the signal condition unit are connect with HF current transformer, power current mutual inductor respectively,
Current signal and operating frequency phase signal for acquiring high-tension cable from HF current transformer, power current mutual inductor；Through
It crosses AD conversion unit and the current signal of high-tension cable and operating frequency phase signal is converted into partial discharge data, and be transmitted to master control
FPGA unit, the master control FPGA unit are filtered partial discharge data using existing analogy algorithm, effectively filter out line
Road is interfered and ambient noise, the master control FPGA unit by communication unit will treated partial discharge data transmission to monitoring master
Machine, meanwhile, the data received are stored to data buffer storage unit.
In the present embodiment, the clock synchronizes partial discharge measurement and positioning device and is configured according to tunnel environment feature, when
By Ethernet cable cascade Connection between clock synchronization partial discharge measurement and positioning device, tandem type chain network is formed, clock synchronizes essence
Degree is less than 8ns.
In the present embodiment, it further includes clock synchronization unit that the clock, which synchronizes partial discharge measurement and positioning device, the clock
Synchronization unit is connect with master control FPGA unit, and the clock synchronization unit is for completing, the clock synchronous with the clock of clock source
Synchronization unit uses clock generator；It is received and sent by communication unit and receives the sync message agreement from upper level device, parsing
After obtain clock signal, clock signal is sent to master control FPGA unit, clock signal occurs master control FPGA unit to clock
Clock signal is divided into multi-path synchronous clock signal by generator, clock generator, and is transferred to master control FPGA unit, master control FPGA
Synchronizing clock signals are transferred to other clocks by communication unit and synchronize partial discharge measurement and positioning device by unit, same into row clock
Step.
As shown in figure 3, the communication unit includes first time protocol transceiver, uplink network interface, the second time association
Transceiver and downstream network interface are discussed, the first time protocol transceiver is sent by uplink network interface monitoring host computer
Sync message agreement and parse acquisition clock signal, the clock signal after parsing is sent to master control FPGA unit；The master
The synchronizing clock signals received are sent to the second time protocol transceiver, the second time protocol transmitting-receiving by control FPGA unit
Synchronizing clock signals are sent to other clocks by downstream network interface and synchronize partial discharge measurement and positioning device by device.Pass through communication unit
Member realizes sync message protocol analysis, data receiver and transmission.
In the present embodiment, it further includes Power Management Unit that the clock, which synchronizes partial discharge measurement and positioning device, the power supply
Administrative unit is used to provide work electricity to master control FPGA unit, AD conversion unit, signal condition unit and clock synchronization unit
Pressure.The Power Management Unit is made of rectifier circuit, energy acquisition circuit and DC/DC circuits.
It can be seen from the above description that the application the above embodiments realize following technique effect：
The discharge current that the utility model acquires high-tension cable by HF current transformer and power current mutual inductor is believed
Number and operating frequency phase signal, the partial discharge data that partial discharge measurement and positioning device acquires high-tension cable are synchronized using clock, and are filtered
Wave processing, and by treated, partial discharge data transmission shows and stores to monitoring host computer, effectively filters out line-hit and environment is made an uproar
Sound greatly improves cable fault spot placement accuracy, synchronizes partial discharge measurement and positioning device cascade Connection by multiple clocks, adopts
The clock that partial discharge measurement and positioning device is synchronized with each clock in clock synchronization unit realization system synchronizes.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel need not make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (6)
1. it is a kind of based on high precision clock synchronize high-tension cable partial discharge measurement and positioning system, characterized in that including monitoring host computer,
Clock synchronizes partial discharge measurement and positioning device and signal measurement module, and multiple signal measurement modules are evenly arranged on high-tension cable,
Each signal measurement module is connected separately with clock and synchronizes partial discharge measurement and positioning device, and high-voltage electricity is acquired by signal measurement module
The discharge current signal and operating frequency phase signal of cable, and be transmitted to clock and synchronize partial discharge measurement and positioning device, multiple clocks synchronize
By too net cable cascade Connection between partial discharge measurement and positioning device, clock synchronizes partial discharge measurement and positioning device and passes through wireless network
Monitoring host computer is sent data to, the display and storage of data are carried out by monitoring host computer.
2. the high-tension cable partial discharge measurement and positioning system according to claim 1 synchronized based on high precision clock, feature
It is that the signal measurement module includes HF current transformer and power current mutual inductor, the HF current transformer is used for
Acquire the discharge current signal of high-tension cable；The power current mutual inductor, the operating frequency phase signal for acquiring high-tension cable.
3. the high-tension cable partial discharge measurement and positioning system according to claim 2 synchronized based on high precision clock, feature
It is that the clock synchronizes partial discharge measurement and positioning device and includes master control FPGA unit, AD conversion unit, signal condition unit and lead to
Believe that unit, the signal condition unit are connect with HF current transformer, power current mutual inductor respectively, is used for from high-frequency current
The current signal and operating frequency phase signal of high-tension cable are acquired in mutual inductor, power current mutual inductor；By AD conversion unit
The current signal of high-tension cable and operating frequency phase signal are converted into data, and is transmitted to master control FPGA unit and is filtered place
Reason, the master control FPGA unit by communication unit will treated data transmission to monitoring host computer, meanwhile, will treated number
According to storing to data buffer storage unit.
4. the high-tension cable partial discharge measurement and positioning system according to claim 3 synchronized based on high precision clock, feature
It is that it further includes clock synchronization unit that the clock, which synchronizes partial discharge measurement and positioning device, the clock synchronization unit includes clock hair
Raw device receives the sync message agreement of monitoring host computer transmission by communication unit and parses acquisition clock signal, and clock is believed
Number it is sent to master control FPGA unit；Clock signal is sent to clock generator by master control FPGA unit, and clock generator is by clock
Signal is divided into multi-path synchronous clock signal, and is transferred to master control FPGA unit, and master control FPGA unit is by communication unit by multichannel
Synchronizing clock signals are transferred to other clocks and synchronize partial discharge measurement and positioning device.
5. the high-tension cable partial discharge measurement and positioning system according to claim 4 synchronized based on high precision clock, feature
It is that the communication unit includes first time protocol transceiver, uplink network interface, the second time protocol transceiver and downlink net
Network interface, the sync message agreement that the first time protocol transceiver is sent by uplink network interface monitoring host computer is simultaneously
Parsing obtains clock signal, and clock signal is sent to master control FPGA unit；The master control FPGA unit is more by what is received
Road synchronizing clock signals are sent to the second time protocol transceiver, and the second time protocol transceiver passes through downstream network interface
Multi-path synchronous clock signal is sent to other clocks and synchronizes partial discharge measurement and positioning device.
6. the high-tension cable partial discharge measurement and positioning system according to claim 5 synchronized based on high precision clock, feature
It is that it further includes Power Management Unit that the clock, which synchronizes partial discharge measurement and positioning device, the Power Management Unit is used for master control
FPGA unit, AD conversion unit, signal condition unit and clock synchronization unit provide operating voltage；The Power Management Unit
It is made of rectifier circuit, energy acquisition circuit and DC/DC circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763644.1U CN207730880U (en) | 2017-12-15 | 2017-12-15 | A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763644.1U CN207730880U (en) | 2017-12-15 | 2017-12-15 | A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207730880U true CN207730880U (en) | 2018-08-14 |
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ID=63098526
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721763644.1U Active CN207730880U (en) | 2017-12-15 | 2017-12-15 | A kind of high-tension cable partial discharge measurement and positioning system synchronized based on high precision clock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207730880U (en) |
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2017
- 2017-12-15 CN CN201721763644.1U patent/CN207730880U/en active Active
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Address after: 250101 Qilu Software Park, No. 1 Shunhua Road, Jinan High-tech Development Zone, Shandong Province, A 203 Patentee after: Conway Communication Technology Co., Ltd Address before: 250101 Qilu Software Park, No. 1 Shunhua Road, Jinan High-tech Development Zone, Shandong Province, A 203 Patentee before: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. |