CN105866539A - Electric quantity measuring instrument for electric power system - Google Patents
Electric quantity measuring instrument for electric power system Download PDFInfo
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- CN105866539A CN105866539A CN201610421274.7A CN201610421274A CN105866539A CN 105866539 A CN105866539 A CN 105866539A CN 201610421274 A CN201610421274 A CN 201610421274A CN 105866539 A CN105866539 A CN 105866539A
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- Prior art keywords
- module
- phase current
- measuring instrument
- real
- current acquisition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention provides an electric quantity measuring instrument for an electric power system. The electric quantity measuring instrument comprises an A-phase current collecting module, a B-phase current collecting module and a C-phase current collecting module, wherein the A-phase current collecting module, the B-phase current collecting module and the C-phase current collecting module are connected with an electric quantity detecting module; the electric quantity detecting module is connected with a CPU; the CPU is connected with an LCD display screen, a storing module, a clock module, a power supplying circuit and an encrypting module; the encrypting module is connected with a wireless data transceiving module, and the power supplying circuit is connected with a voltage changing module; the A-phase current collecting module, the B-phase current collecting module, the C-phase current collecting module and the voltage changing module are connected into an electric power supplying system. The electric quantity measuring instrument is simple in structure and reasonable in design, can measure and record electric quantity information of the electric power system in real time and can communicate with a main controlling center through wireless communication after encryption; in addition, the electric quantity measuring instrument comprises the power supplying circuit, so that the electric quantity measuring instrument can directly obtain power from the electric power system instead of an external power supply.
Description
Technical field
The present invention relates to electrical equipment technical field, specifically a kind of power system electricity measuring instrument.
Background technology
Along with the progress of society, the development of science and technology, the mankind create out the equipment for the service of people's class
More and more, increasingly advanced, these equipment are that the life of the mankind provides great convenience, improve people
The living standard of the people masses, but bring therewith is then the serious aggravation of power consumption, substantial amounts of power consumption
The waste not only causing resource also result in serious pollution simultaneously to environment.In power system, electric power
The analysis of data needs substantial amounts of record to support, the collection of data must timely and accurately, but according to existing
Technology be difficult to, existing technology mostly uses pincerlike meter electrical equipment is carried out current detecting, its
To be combined by current transformer and ammeter, the wire that tested electric current is passed through through pincerlike meter ferrum
Heart breach, becomes the primary winding of current transformer, by electric current just at secondary through tested wire unshakable in one's determination
Coil induces electric current, so that the ammeter that secondary coil is connected just has instruction, i.e. measures by survey line
The electric current on road.
Summary of the invention
The present invention proposes a kind of power system electricity measuring instrument, solves prior art and is difficult to enter electric power data
The problem that row timely and accurately gathers and analyzes.
The technical scheme is that and be achieved in that:
A kind of power system electricity measuring instrument, including A phase current acquisition module, B phase current acquisition module and
C phase current acquisition module, described A phase current acquisition module, B phase current acquisition module and C phase current are adopted
Collection module is connected with electric power detection module, and described electric power detection module is connected with CPU, and described CPU connects to be had
LCD display, memory module, clock module, power supply circuits and encrypting module, described encrypting module connects
Having wireless data transceiver module, described power supply circuits connect voltage transformation module；
Described A phase current acquisition module, B phase current acquisition module, C phase current acquisition module and voltage become
Die change block is connected in power supply system；
Described electric power detection module, for according to described A phase current acquisition module, B phase current acquisition module
The real-time power consumption information of information acquisition gathered with C phase current acquisition module, and described real-time power consumption is believed
Breath is converted into pulse signal and sends into described CPU；
Described CPU, for delivering to described LCD by the real-time power consumption information that described electric power detection module sends
Display screen shows in real time, is stored in described memory module by described real-time power consumption information, by described in real time
Power consumption information delivers to encrypting module；
Deliver to wireless after the encoded encryption of real-time power consumption information that described encrypting module will be sent by described CPU
Transceiver module；
Real-time power consumption information after encryption is sent by described radio receiving transmitting module；
Described clock module, for providing the time point recording described real-time power consumption information to described CPU,
Ensure that described real-time power consumption information records time one_to_one corresponding with it；
Described voltage transformation module, for the alternating voltage of power system is converted to DC voltage, and passes through
Power supply circuits are that this power system electricity measuring instrument is powered.
Further, it is connected between described electric power detection module and described CPU and has isolation module.
Further, described memory module includes the first memory element and the second memory element, wherein:
Described first memory element, for storing the system initiation information of this power system electricity measuring instrument, institute
State EEPRAM memorizer and peripheral circuit thereof that the first memory element includes that model is FM24C64；
Described second memory element, is used for storing described real-time power consumption information, described second memory element bag
Include storage chip and peripheral circuit thereof that model is M25P16.
Further, described voltage transformation module connects voltage reference cell, described voltage reference cell bag
Include voltage reference chip and peripheral circuit thereof that model is AD780B.
Further, described CPU includes singlechip chip and the peripheral circuit thereof that model is MSP430F149,
Described electric power detection module includes electrical measurement chip and the peripheral circuit thereof that model is MCP3909, time described
Clock module includes clock chip and the peripheral circuit thereof that model is pcf8563.
The invention have the benefit that
Present configuration is simple, reasonable in design；Can measure in real time and the information about power of record electricity system,
And communicated with mster-control centre by wireless telecommunications after encrypting；Carry power supply circuits, directly from power train
System takes and can power, it is not necessary to external power source.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the power system electricity measuring instrument in the present embodiment, including A phase current acquisition module,
B phase current acquisition module and C phase current acquisition module, A phase current acquisition module, B phase current gather mould
Block is connected with electric power detection module with C phase current acquisition module, and electric power detection module is connected with CPU, CPU
Connecting and have LCD display, memory module, clock module, power supply circuits and encrypting module, encrypting module is even
Being connected to wireless data transceiver module, power supply circuits connect voltage transformation module, and wherein, A phase current gathers
Module, B phase current acquisition module, C phase current acquisition module and voltage transformation module are connected to power supply system
In system.
A phase current acquisition module, B phase current acquisition module and C phase current acquisition module are respectively used to gather
Three-phase current information in power system；Electric power detection module, for according to A phase current acquisition module, B
The real-time power consumption information of information acquisition that phase current acquisition module and C phase current acquisition module gather, and will be real
Time power consumption information be converted into pulse signal send into CPU.
The real-time power consumption information that electric power detection module sends is delivered to LCD display and is shown in real time by CPU,
Real-time power consumption information is stored in a storage module, real-time power consumption information is delivered to encrypting module.Encryption
Radio receiving transmitting module, wireless receipts are delivered to after the encoded encryption of real-time power consumption information that module will be sent by CPU
Send out module to be sent by the real-time power consumption information after encryption, communicate with mster-control centre.
Clock module, for providing the time point recording real-time power consumption information, it is ensured that power consumption in real time to CPU
Amount information records time one_to_one corresponding with it.
Voltage transformation module, for being converted to DC voltage, and by power supply by the alternating voltage of power system
Circuit is that this power system electricity measuring instrument is powered.
In the present embodiment, it is connected between electric power detection module and CPU and has isolation module, be used for protecting CPU not
By from the abnormal voltage of electric power detection module or impacting of abnormal current, isolation module includes that model is
The two-channel digital isolator of adum1201 and peripheral circuit thereof.
In the present embodiment, memory module includes the first memory element and the second memory element, wherein:
First memory element, for storing the system initiation information of this power system electricity measuring instrument, first deposits
Storage unit includes EEPRAM memorizer and the peripheral circuit thereof that model is FM24C64；
Second memory element, is used for storing real-time power consumption information, and the second memory element includes that model is
The storage chip of M25P16 and peripheral circuit thereof.
In the present embodiment, voltage transformation module connects has voltage reference cell, for burning voltage conversion module
The voltage of output, voltage reference cell includes voltage reference chip and the peripheral circuit thereof that model is AD780B.
In the present embodiment, CPU includes singlechip chip and the peripheral circuit thereof that model is MSP430F149,
Electric power detection module includes electrical measurement chip and peripheral circuit, the clock module bag that model is MCP3909
Include clock chip and peripheral circuit thereof that model is pcf8563.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (5)
1. a power system electricity measuring instrument, it is characterised in that include A phase current acquisition module, B phase
Current acquisition module and C phase current acquisition module, described A phase current acquisition module, B phase current gather mould
Block is connected with electric power detection module with C phase current acquisition module, and described electric power detection module is connected with CPU,
Described CPU connects LCD display, memory module, clock module, power supply circuits and encrypting module,
Described encrypting module connects wireless data transceiver module, and described power supply circuits connect voltage transformation module；
Described A phase current acquisition module, B phase current acquisition module, C phase current acquisition module and voltage become
Die change block is connected in power supply system；
Described electric power detection module, for according to described A phase current acquisition module, B phase current acquisition module
The real-time power consumption information of information acquisition gathered with C phase current acquisition module, and described real-time power consumption is believed
Breath is converted into pulse signal and sends into described CPU；
Described CPU, for delivering to described LCD by the real-time power consumption information that described electric power detection module sends
Display screen shows in real time, is stored in described memory module by described real-time power consumption information, by described in real time
Power consumption information delivers to encrypting module；
Deliver to wireless after the encoded encryption of real-time power consumption information that described encrypting module will be sent by described CPU
Transceiver module；
Real-time power consumption information after encryption is sent by described radio receiving transmitting module；
Described clock module, for providing the time point recording described real-time power consumption information to described CPU,
Ensure that described real-time power consumption information records time one_to_one corresponding with it；
Described voltage transformation module, for the alternating voltage of power system is converted to DC voltage, and passes through
Power supply circuits are that this power system electricity measuring instrument is powered.
2. power system electricity measuring instrument as claimed in claim 1, it is characterised in that described electric power detection
It is connected between module with described CPU and has isolation module.
3. power system electricity measuring instrument as claimed in claim 2, it is characterised in that described memory module
Including the first memory element and the second memory element, wherein:
Described first memory element, for storing the system initiation information of this power system electricity measuring instrument, institute
State EEPRAM memorizer and peripheral circuit thereof that the first memory element includes that model is FM24C64；
Described second memory element, is used for storing described real-time power consumption information, described second memory element bag
Include storage chip and peripheral circuit thereof that model is M25P16.
4. power system electricity measuring instrument as claimed in claim 3, it is characterised in that described voltage transformation
Module connects has voltage reference cell, described voltage reference cell to include the voltage reference that model is AD780B
Chip and peripheral circuit thereof.
5. power system electricity measuring instrument as claimed in claim 4, it is characterised in that described CPU bag
Including singlechip chip and peripheral circuit thereof that model is MSP430F149, described electric power detection module includes type
Number being electrical measurement chip and the peripheral circuit thereof of MCP3909, described clock module includes that model is
The clock chip of pcf8563 and peripheral circuit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610421274.7A CN105866539A (en) | 2016-06-14 | 2016-06-14 | Electric quantity measuring instrument for electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610421274.7A CN105866539A (en) | 2016-06-14 | 2016-06-14 | Electric quantity measuring instrument for electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105866539A true CN105866539A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610421274.7A Pending CN105866539A (en) | 2016-06-14 | 2016-06-14 | Electric quantity measuring instrument for electric power system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949975A (en) * | 2010-09-07 | 2011-01-19 | 易福润德（北京）科技有限公司 | Intelligent electric power quantity metering instrument |
| CN103901269A (en) * | 2014-04-01 | 2014-07-02 | 江南大学 | Electric quantity measuring device facilitating switching of wiring mode |
| US20150028854A1 (en) * | 2012-09-18 | 2015-01-29 | Jining Power Supply Company Of State Grid Shandong Electric Power Company | Dispersed state monitoring device for distributed generation |
| CN104635713A (en) * | 2015-03-05 | 2015-05-20 | 国家电网公司 | Electric energy metering system |
| CN204514991U (en) * | 2015-03-30 | 2015-07-29 | 杭州力控科技有限公司 | A kind of intelligent electric meter |
| CN205720427U (en) * | 2016-06-14 | 2016-11-23 | 河北箱变电器有限公司 | Power system electricity measuring instrument |
-
2016
- 2016-06-14 CN CN201610421274.7A patent/CN105866539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949975A (en) * | 2010-09-07 | 2011-01-19 | 易福润德（北京）科技有限公司 | Intelligent electric power quantity metering instrument |
| US20150028854A1 (en) * | 2012-09-18 | 2015-01-29 | Jining Power Supply Company Of State Grid Shandong Electric Power Company | Dispersed state monitoring device for distributed generation |
| CN103901269A (en) * | 2014-04-01 | 2014-07-02 | 江南大学 | Electric quantity measuring device facilitating switching of wiring mode |
| CN104635713A (en) * | 2015-03-05 | 2015-05-20 | 国家电网公司 | Electric energy metering system |
| CN204514991U (en) * | 2015-03-30 | 2015-07-29 | 杭州力控科技有限公司 | A kind of intelligent electric meter |
| CN205720427U (en) * | 2016-06-14 | 2016-11-23 | 河北箱变电器有限公司 | Power system electricity measuring instrument |
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Application publication date: 20160817 |
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