CN104950159A - Harmonic current tester - Google Patents
Harmonic current tester Download PDFInfo
- Publication number
- CN104950159A CN104950159A CN201510347114.8A CN201510347114A CN104950159A CN 104950159 A CN104950159 A CN 104950159A CN 201510347114 A CN201510347114 A CN 201510347114A CN 104950159 A CN104950159 A CN 104950159A
- Authority
- CN
- China
- Prior art keywords
- harmonic
- management device
- processor
- described harmonic
- current tester
- Prior art date
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000007726 management method Methods 0.000 claims description 45
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 230000006855 networking Effects 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a harmonic current tester, which comprises a harmonic current detector, a harmonic decomposer connected with the harmonic current detector, a harmonic content statistical analyzer connected with the harmonic decomposer, a harmonic processor connected with the harmonic decomposer, a harmonic intensity calculator connected with the harmonic processor, a harmonics superposition time analyzer connected with the harmonic processor, a harmonic early-warning generator connected with the harmonic processor, a harmonic generation time delay counter connected with the harmonic processor, a harmonic detection numerical value networking transmitter connected with the harmonic processor, a harmonic processing method collecting replier connected with the harmonic processor, and a harmonic processing result information transmitter connected with the harmonic processor and used for transmitting information to a user. The harmonic current tester is simple in structure, good in use stability, convenient to use, effectively improved in use stability, reliability and effectiveness, good in applicability, and strong in practicability.
Description
Technical field
The invention belongs to electric and electronic technical field, be specifically related to a kind of harmonic current tester.
Background technology
Along with the development of China's electric power network technology, power electronic equipment is widely used in every field, very large convenience is brought to the life of people, the development of converter technique brings very large pollution to electrical network, the higher harmonic current produced by frequency conversion equipment and harmonic voltage cause larger impact on the voltage of electrical network to line voltage, even can affect the stable operation of whole electric power network, generally need first to detect the harmonic wave of power network current to well administer mains by harmonics, its detection less stable of the harmonic measurement device of prior art, there is larger error, so its applicability and practicality are restricted to a certain extent.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention is to provide that a kind of structure is simple, stability in use good and the harmonic current tester that applicability is strong.
The technical scheme realizing the object of the invention is a kind of harmonic current tester, comprise Harmonic currents detection device, the harmonic content statistical analyzer that the Harmonic Decomposition device be connected with described Harmonic currents detection device is connected with described Harmonic Decomposition device, also comprise the harmonic management device be connected with described Harmonic Decomposition device, the harmonic wave Strength co-mputation device be connected with described harmonic management device, the harmonic superposition number of times analyzer be connected with described harmonic management device, the harmonic wave early warning generator be connected with described harmonic management device, the harmonic wave generation time delay counter be connected with described harmonic management device, the harmonic detecting numerical value be connected with described harmonic management device is networked transmitter, the harmonic management object information transmitter that the harmonic management method be connected with described harmonic management device is collected receipt device and is connected with described harmonic management device for sending information to user.
The harmonic wave waveform picture generator also comprising the harmonic wave early warning intensity input unit be connected with described harmonic management device, the harmonic wave intensity comparer be connected with described harmonic management device and be connected with described harmonic management device.
Also comprise the display be connected with described harmonic management device and the harmonic frequency be connected with described harmonic management device encrypts statistical memory.
The present invention has positive effect: structure of the present invention is simple, stability in use good, easy to use, can effectively improve its stability in use, reliability and validity, thus be the cost effectively reducing Active Power Filter-APF improvement, thus improve the quality of power supply of clean electrical network to a certain extent, applicability is good, practical.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is structural representation of the present invention.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present invention, and wherein Fig. 1 is structural representation of the present invention.
See Fig. 1, a kind of harmonic current tester, comprise Harmonic currents detection device 1, the harmonic content statistical analyzer 3 that the Harmonic Decomposition device 2 be connected with described Harmonic currents detection device 1 is connected with described Harmonic Decomposition device 2, also comprise the harmonic management device 4 be connected with described Harmonic Decomposition device 2, the harmonic wave Strength co-mputation device 5 be connected with described harmonic management device 4, the harmonic superposition number of times analyzer 6 be connected with described harmonic management device 4, the harmonic wave early warning generator 7 be connected with described harmonic management device 4, the harmonic wave generation time delay counter 8 be connected with described harmonic management device 4, the harmonic detecting numerical value be connected with described harmonic management device 4 is networked transmitter 9, the harmonic management object information transmitter 11 that the harmonic management method be connected with described harmonic management device 4 is collected receipt device 10 and is connected with described harmonic management device 4 for sending information to user.
The harmonic wave waveform picture generator 14 also comprising the harmonic wave early warning intensity input unit 12 be connected with described harmonic management device 4, the harmonic wave intensity comparer 13 be connected with described harmonic management device 4 and be connected with described harmonic management device 4.
Also comprise the display 15 be connected with described harmonic management device 4 and the harmonic frequency be connected with described harmonic management device 4 encrypts statistical memory 16.
Structure of the present invention is simple, stability in use good, easy to use, can effectively improve its stability in use, reliability and validity, thus be the cost effectively reducing Active Power Filter-APF improvement, thus improving the quality of power supply of clean electrical network to a certain extent, applicability is good, practical.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (3)
1. a harmonic current tester, comprise Harmonic currents detection device, the harmonic content statistical analyzer that the Harmonic Decomposition device be connected with described Harmonic currents detection device is connected with described Harmonic Decomposition device, it is characterized in that: also comprise the harmonic management device be connected with described Harmonic Decomposition device, the harmonic wave Strength co-mputation device be connected with described harmonic management device, the harmonic superposition number of times analyzer be connected with described harmonic management device, the harmonic wave early warning generator be connected with described harmonic management device, the harmonic wave generation time delay counter be connected with described harmonic management device, the harmonic detecting numerical value be connected with described harmonic management device is networked transmitter, the harmonic management object information transmitter that the harmonic management method be connected with described harmonic management device is collected receipt device and is connected with described harmonic management device for sending information to user.
2. harmonic current tester according to claim 1, is characterized in that: the harmonic wave waveform picture generator also comprising the harmonic wave early warning intensity input unit be connected with described harmonic management device, the harmonic wave intensity comparer be connected with described harmonic management device and be connected with described harmonic management device.
3. harmonic current tester according to claim 2, is characterized in that: also comprise the display be connected with described harmonic management device and the harmonic frequency be connected with described harmonic management device encrypts statistical memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510347114.8A CN104950159A (en) | 2015-06-23 | 2015-06-23 | Harmonic current tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510347114.8A CN104950159A (en) | 2015-06-23 | 2015-06-23 | Harmonic current tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104950159A true CN104950159A (en) | 2015-09-30 |
Family
ID=54164964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510347114.8A Pending CN104950159A (en) | 2015-06-23 | 2015-06-23 | Harmonic current tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104950159A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216270A (en) * | 2002-10-17 | 2008-09-18 | Seiko Epson Corp | Current detection circuit |
| CN201429651Y (en) * | 2009-03-11 | 2010-03-24 | 南京奥立创智能科技有限公司 | Wireless intelligent harmonic monitoring system |
| US20100324843A1 (en) * | 2008-02-06 | 2010-12-23 | Electrolux Home Products Corporation N.V. | Method and Device for Measuring the Electric Power of a Universal Electric Motor Powered by Sinusoidal Alternating Voltage |
| CN201886082U (en) * | 2010-12-09 | 2011-06-29 | 蒋雪峰 | Power harmonic monitoring system based on novel Fourier transformation |
| CN202066925U (en) * | 2011-04-29 | 2011-12-07 | 滁州利华电子有限公司 | Harmonic monitor of electric network |
| CN102305892A (en) * | 2011-07-13 | 2012-01-04 | 上海仪器仪表研究所 | Novel power grid harmonic detection analysis device |
| CN103499740A (en) * | 2013-09-30 | 2014-01-08 | 河南开启电力实业有限公司 | Online detection device for power grid harmonic waves |
| CN104330626A (en) * | 2014-10-08 | 2015-02-04 | 国家电网公司 | Power grid harmonic wave monitor |
-
2015
- 2015-06-23 CN CN201510347114.8A patent/CN104950159A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216270A (en) * | 2002-10-17 | 2008-09-18 | Seiko Epson Corp | Current detection circuit |
| US20100324843A1 (en) * | 2008-02-06 | 2010-12-23 | Electrolux Home Products Corporation N.V. | Method and Device for Measuring the Electric Power of a Universal Electric Motor Powered by Sinusoidal Alternating Voltage |
| CN201429651Y (en) * | 2009-03-11 | 2010-03-24 | 南京奥立创智能科技有限公司 | Wireless intelligent harmonic monitoring system |
| CN201886082U (en) * | 2010-12-09 | 2011-06-29 | 蒋雪峰 | Power harmonic monitoring system based on novel Fourier transformation |
| CN202066925U (en) * | 2011-04-29 | 2011-12-07 | 滁州利华电子有限公司 | Harmonic monitor of electric network |
| CN102305892A (en) * | 2011-07-13 | 2012-01-04 | 上海仪器仪表研究所 | Novel power grid harmonic detection analysis device |
| CN103499740A (en) * | 2013-09-30 | 2014-01-08 | 河南开启电力实业有限公司 | Online detection device for power grid harmonic waves |
| CN104330626A (en) * | 2014-10-08 | 2015-02-04 | 国家电网公司 | Power grid harmonic wave monitor |
Non-Patent Citations (1)
| Title |
|---|
| 艾芊: "《电力系统稳态分析》", 31 August 2014, 清华大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Achlerkar et al. | Variational mode decomposition and decision tree based detection and classification of power quality disturbances in grid-connected distributed generation system | |
| Wang et al. | A new method with Hilbert transform and slip-SVD-based noise-suppression algorithm for noisy power quality monitoring | |
| CN203365619U (en) | System for detecting and positioning partial discharge of cable oscillation waves | |
| CN205080227U (en) | Ground net detecting system | |
| CN103091554B (en) | Steady-state harmonic wave analyzing method for line terminal synchronous measurement signal multi-bus micro-grid | |
| CN106093570A (en) | A kind of harmonic wave source tracing method judging that system side is major harmonic source | |
| CN102305892A (en) | Novel power grid harmonic detection analysis device | |
| CN104316888B (en) | SV-sampling-signal-based partial discharge monitoring internal synchronization reference correction method | |
| CN106970302A (en) | The positioning of power distribution network high resistive fault and analogy method based on integrated empirical mode decomposition | |
| CN107843781A (en) | Electric energy quality monitoring analysis system | |
| CN102081134A (en) | Method for locating disturbance source of electrical power system | |
| CN115825845A (en) | Device and method for monitoring abnormity of terminal equipment of electric power metering automation system | |
| CN203216993U (en) | Power grid harmonic real-time online monitor | |
| CN104950159A (en) | Harmonic current tester | |
| CN201269907Y (en) | Harmonic detector used between electrical power systems | |
| CN206788220U (en) | A kind of Power Quality Monitor Device | |
| CN203490357U (en) | Self-detection-type residual current transformer detection circuit | |
| CN104977454A (en) | Harmonic wave current testing apparatus | |
| CN202041576U (en) | A Wireless DC High Voltage Digital Microammeter | |
| CN203883448U (en) | Middle-voltage grounding resistor cabinet control circuit | |
| CN104061999A (en) | Partial discharge locating detection device of distribution transformer | |
| CN204479681U (en) | Platform district identifier | |
| CN204422708U (en) | With Partial discharge detector's device of RFID | |
| CN204389594U (en) | Large ground network earth resistance tester | |
| CN103926502B (en) | A kind of alternating current-direct current of dc source alters electric detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |