CN105242147A - Low-voltage distribution power parameter monitoring device - Google Patents
Low-voltage distribution power parameter monitoring device Download PDFInfo
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- CN105242147A CN105242147A CN201510725178.7A CN201510725178A CN105242147A CN 105242147 A CN105242147 A CN 105242147A CN 201510725178 A CN201510725178 A CN 201510725178A CN 105242147 A CN105242147 A CN 105242147A
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Abstract
Disclosed in the invention is a low-voltage distribution power parameter monitoring device comprising a three-phase voltage input module. The three-phase voltage input module is connected with a voltage transformer module electrically; the voltage transformer module is connected with a power parameter collection module electrically; the power parameter collection module is connected with a first current transformer module and a second current transformer module electrically; the first current transformer module is connected with the three-phase voltage input module electrically; and the second current transformer module is connected with a zero-line circuit input module electrically. The power parameter collection module consists of a voltage effective measurement module, a current effective measurement module, a phase-integration active power measurement module, and a power parameter collection module unit. The power parameter collection module is also connected with a data analysis processing module electrically; the data analysis processing module is connected with a control module electrically; and the control module is connected with a remote terminal in a bidirectional signal mode. The monitoring device has advantages of simple structure and high practicability.
Description
Technical field
The present invention relates to electrical equipment technical field, be specially a kind of low-voltage distribution power param eter supervision device.
Background technology
Along with industry, agricultural and the increasingly sharpening of resident living power utility amount, the input of power industry and building also increases thereupon, but is difficult to meet the demand increased.Along with the continuous increase of net capacity, the structure of electric net device also becomes complicated, the various nonlinear load such as frequency converter, rectifier widely using in China of enterprise, these non-linear and unbalance loads make the power supply safety coefficient of electrical network increasingly worsen, and bring huge harm to society.For ensureing the safe operation of electrical network and understanding the operation conditions of electrical network, need to carry out Real-Time Monitoring to the various parameters of electrical network, and timely various parameter can be sent to dispatching center as required, and in actual applications, often there is surveying instrument function singleness.Traditional detecting instrument is adopt industrial computer configuration parameter capture card to realize parameter acquisition and analysis mostly, detects mainly for Index For Steady-state, and the real-time of device is difficult to ensure, intelligent and networked levels is low.
Summary of the invention
The object of the present invention is to provide a kind of low-voltage distribution power param eter supervision device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of low-voltage distribution power param eter supervision device, comprise three-phase voltage load module, the output terminal of described three-phase voltage load module and the input end of mutual induction of voltage module are electrically connected, the output terminal of described mutual induction of voltage module is electrically connected with the input end of electric parameter acquisition module, the input end of described electric parameter acquisition module is also electrically connected with the output terminal of the first Current Mutual Inductance module and the second Current Mutual Inductance module respectively, the described input end of the first Current Mutual Inductance module and the output terminal of three-phase current load module are electrically connected, and the output terminal of the input end of the second Current Mutual Inductance module and zero line circuit load module is electrically connected, described electric parameter acquisition module comprises the effective measurement module of voltage, the effective measurement module of electric current, close phase active power measurement module and electric parameter acquisition module, the output terminal of described electric parameter acquisition module is also electrically connected with the input end of Data Analysis Services module, the output terminal of described Data Analysis Services module and the input end of control module are electrically connected, described control module two-way signaling is connected with remote terminal.
Preferably, the effective measurement module of described voltage comprises voltage sample value load module, the output terminal of described voltage sample value load module and the input end of the first high-pass filtering module are electrically connected, the output terminal of described first high-pass filtering module and the input end of the first parameter sampling module are electrically connected, the described output terminal of the first parameter sampling module and the input end of the first digital filtering module are electrically connected, and the extract square root input end of module of the output terminal of described first digital filtering module and first is electrically connected.
Preferably, the effective measurement module of described electric current comprises current sampling data load module, the output terminal of described current sampling data load module and the input end of the second high-pass filtering module are electrically connected, the output terminal of described second high-pass filtering module and the input end of the second parameter sampling module are electrically connected, the described output terminal of the second parameter sampling module and the input end of the second digital filtering module are electrically connected, and the extract square root input end of module of the output terminal of described second digital filtering module and second is electrically connected.
Preferably, described conjunction phase active power measurement module comprises voltage sample value load module, the described output terminal of voltage sample value load module and the input end of third high pass filtering module are electrically connected, the output terminal of described third high pass filtering module and the input end of the 3rd parameter sampling module are electrically connected, the input end of described 3rd parameter sampling module is also electrically connected with the output terminal of power gain correction verification module and phase correction module respectively, the input end of described phase correction module is also electrically connected with the output terminal of current sampling data load module, described 3rd parameter sampling module is also electrically connected with energy computation module and power computation module respectively.
Compared with prior art, the invention has the beneficial effects as follows: this low-voltage distribution power param eter supervision principle of device is simple, effectively can improve the accuracy of Monitoring Data, remote monitoring, parameter sharing and long-term evaluation prediction can be realized, and, there is intellectual analysis ability, directly effective information can be provided directly to user, and current electric grid information can be monitored timely and effectively, also to give the trouble that special analysis tool goes to process after avoiding traditional monitoring device image data, make the practicality of this monitoring device stronger.
Accompanying drawing explanation
Fig. 1 is principle of the invention block diagram;
Fig. 2 is the effective measurement module theory diagram of voltage of the present invention;
Fig. 3 is the effective measurement module theory diagram of electric current of the present invention;
Fig. 4 is that the present invention closes phase active power measurement module principle block diagram.
In figure: 1 three-phase voltage load module, 2 mutual induction of voltage modules, 3 electric parameter acquisition modules, the effective measurement module of 31 voltage, 311 voltage sample value load modules, 312 first high-pass filtering modules, 313 first parameter sampling modules, 314 first digital filtering modules, 315 first extraction of square root modules, the effective measurement module of 32 electric current, 321 current sampling data load modules, 322 second high-pass filtering modules, 323 second parameter sampling modules, 324 second digital filtering modules, 325 second extraction of square root modules, 33 close phase active power measurement module, 331 third high pass filtering module, 332 the 3rd parameter sampling modules, 333 power gain correction verification modules, 334 phase correction module, 335 energy computation module, 336 power computation module, 4 first Current Mutual Inductance modules, 5 second Current Mutual Inductance modules, 6 three-phase current load modules, 7 zero line circuit load modules, 8 Data Analysis Services modules, 9 control modules, 10 remote terminals, 11 touch-screens, 12 memory modules.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-4, the invention provides a kind of technical scheme: a kind of low-voltage distribution power param eter supervision device, comprise three-phase voltage load module 1, the output terminal of three-phase voltage load module 1 and the input end of mutual induction of voltage module 2 are electrically connected, the output terminal of mutual induction of voltage module 2 is electrically connected with the input end of electric parameter acquisition module 3, the input end of electric parameter acquisition module 3 is also electrically connected with the output terminal of the first Current Mutual Inductance module 4 and the second Current Mutual Inductance module 5 respectively, the input end of the first Current Mutual Inductance module 4 and the output terminal of three-phase current load module 6 are electrically connected, and the output terminal of the input end of the second Current Mutual Inductance module 5 and zero line circuit load module 7 is electrically connected, electric parameter acquisition module 3 comprises the effective measurement module 31 of voltage, the effective measurement module 32 of electric current, close phase active power measurement module 33 and electric parameter acquisition module 34, the effective measurement module 31 of voltage comprises voltage sample value load module 311, the output terminal of voltage sample value load module 311 and the input end of the first high-pass filtering module 312 are electrically connected, the output terminal of the first high-pass filtering module 312 and the input end of the first parameter sampling module 313 are electrically connected, the output terminal of the first parameter sampling module 313 and the input end of the first digital filtering module 314 are electrically connected, the extract square root input end of module 315 of the output terminal of the first digital filtering module 314 and first is electrically connected, the effective measurement module 32 of electric current comprises current sampling data load module 321, the output terminal of current sampling data load module 321 and the input end of the second high-pass filtering module 322 are electrically connected, the output terminal of the second high-pass filtering module 322 and the input end of the second parameter sampling module 323 are electrically connected, the output terminal of the second parameter sampling module 323 and the input end of the second digital filtering module 324 are electrically connected, the extract square root input end of module 325 of the output terminal of the second digital filtering module 324 and second is electrically connected, close phase active power measurement module 33 and comprise voltage sample value load module 311, the output terminal of voltage sample value load module 311 and the input end of third high pass filtering module 331 are electrically connected, the output terminal of third high pass filtering module 331 and the input end of the 3rd parameter sampling module 332 are electrically connected, the input end of the 3rd parameter sampling module 332 is also electrically connected with the output terminal of power gain correction verification module 333 with phase correction module 334 respectively, the input end of phase correction module 334 is also electrically connected with the output terminal of current sampling data load module 321, 3rd parameter sampling module 332 is also electrically connected with energy computation module 335 and power computation module 336 respectively, the output terminal of electric parameter acquisition module 3 is also electrically connected with the input end of Data Analysis Services module 8, the output terminal of Data Analysis Services module 8 and the input end of control module 9 are electrically connected, control module 9 two-way signaling is connected with remote terminal, and control module 9 is also two-way is respectively electrically connected with touch-screen 11 and memory module 12, this low-voltage distribution power param eter supervision principle of device is simple, effectively can improve the accuracy of Monitoring Data, remote monitoring can be realized, parameter sharing and long-term evaluation prediction, and, there is intellectual analysis ability, directly effective information can be provided directly to user, and current electric grid information can be monitored timely and effectively, the trouble that special analysis tool goes to process also will be given after avoiding traditional monitoring device image data, make the practicality of this monitoring device stronger.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (4)
1. a low-voltage distribution power param eter supervision device, comprise three-phase voltage load module (1), it is characterized in that: the output terminal of described three-phase voltage load module (1) and the input end of mutual induction of voltage module (2) are electrically connected, the output terminal of described mutual induction of voltage module (2) is electrically connected with the input end of electric parameter acquisition module (3), the input end of described electric parameter acquisition module (3) is also electrically connected with the output terminal of the first Current Mutual Inductance module (4) and the second Current Mutual Inductance module (5) respectively, the described input end of the first Current Mutual Inductance module (4) and the output terminal of three-phase current load module (6) are electrically connected, and the input end of the second Current Mutual Inductance module (5) and the output terminal of zero line circuit load module (7) are electrically connected, described electric parameter acquisition module (3) comprises the effective measurement module of voltage (31), the effective measurement module of electric current (32), close phase active power measurement module (33) and electric parameter acquisition module (34), the output terminal of described electric parameter acquisition module (3) is also electrically connected with the input end of Data Analysis Services module (8), the output terminal of described Data Analysis Services module (8) and the input end of control module (9) are electrically connected, described control module (9) two-way signaling is connected with remote terminal, and control module (9) also two-way touch-screen (11) and the memory module (12) of being electrically connected with respectively.
2. a kind of low-voltage distribution power param eter supervision device according to claim 1, it is characterized in that: the effective measurement module of described voltage (31) comprises voltage sample value load module (311), the output terminal of described voltage sample value load module (311) and the input end of the first high-pass filtering module (312) are electrically connected, the output terminal of described first high-pass filtering module (312) and the input end of the first parameter sampling module (313) are electrically connected, the described output terminal of the first parameter sampling module (313) and the input end of the first digital filtering module (314) are electrically connected, the extract square root input end of module (315) of the output terminal and first of described first digital filtering module (314) is electrically connected.
3. a kind of low-voltage distribution power param eter supervision device according to claim 1, it is characterized in that: the effective measurement module of described electric current (32) comprises current sampling data load module (321), the output terminal of described current sampling data load module (321) and the input end of the second high-pass filtering module (322) are electrically connected, the output terminal of described second high-pass filtering module (322) and the input end of the second parameter sampling module (323) are electrically connected, the described output terminal of the second parameter sampling module (323) and the input end of the second digital filtering module (324) are electrically connected, the extract square root input end of module (325) of the output terminal and second of described second digital filtering module (324) is electrically connected.
4. a kind of low-voltage distribution power param eter supervision device according to claim 1, it is characterized in that: described conjunction phase active power measurement module (33) comprises voltage sample value load module (311), the output terminal of described voltage sample value load module (311) and the input end of third high pass filtering module (331) are electrically connected, the output terminal of described third high pass filtering module (331) and the input end of the 3rd parameter sampling module (332) are electrically connected, the input end of described 3rd parameter sampling module (332) is also electrically connected with the output terminal of power gain correction verification module (333) with phase correction module (334) respectively, the input end of described phase correction module (334) is also electrically connected with the output terminal of current sampling data load module (321), described 3rd parameter sampling module (332) is also electrically connected with energy computation module (335) and power computation module (336) respectively.
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|---|---|---|---|
| CN201510725178.7A CN105242147A (en) | 2015-11-02 | 2015-11-02 | Low-voltage distribution power parameter monitoring device |
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| CN201510725178.7A CN105242147A (en) | 2015-11-02 | 2015-11-02 | Low-voltage distribution power parameter monitoring device |
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| CN105242147A true CN105242147A (en) | 2016-01-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443272A (en) * | 2016-11-03 | 2017-02-22 | 衢州学院 | Power grid equipment state monitoring data analysis platform |
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2015
- 2015-11-02 CN CN201510725178.7A patent/CN105242147A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008084747A (en) * | 2006-09-28 | 2008-04-10 | Daihen Corp | Arc detector for plasma treatment system, and program and storage media for realizing arc detector |
| CN201440158U (en) * | 2009-07-21 | 2010-04-21 | 黑龙江大学 | Power quality monitoring and analyzing device |
| CN203502491U (en) * | 2013-09-24 | 2014-03-26 | 国家电网公司 | Electric quantity parameter measuring instrument |
| CN204459387U (en) * | 2015-01-28 | 2015-07-08 | 博雷（中国）控制系统有限公司 | A kind of modular integrated shift fork type pneumatic actuator |
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| 张金波 等: "电力电量参数测量系统的设计", 《计算机测量与控制》 * |
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| CN106443272A (en) * | 2016-11-03 | 2017-02-22 | 衢州学院 | Power grid equipment state monitoring data analysis platform |
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Application publication date: 20160113 |
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