CN105445544A - Power supply quantity subentry metering system and method - Google Patents
Power supply quantity subentry metering system and method Download PDFInfo
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- CN105445544A CN105445544A CN201510946938.7A CN201510946938A CN105445544A CN 105445544 A CN105445544 A CN 105445544A CN 201510946938 A CN201510946938 A CN 201510946938A CN 105445544 A CN105445544 A CN 105445544A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004458 analytical method Methods 0.000 claims abstract description 32
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 16
- 238000004088 simulation Methods 0.000 abstract 4
- 238000012806 monitoring device Methods 0.000 abstract 3
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000004069 differentiation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- G01R22/08—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using analogue techniques
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a power supply quantity subentry metering system comprising a metering device and a monitoring device. The metering device is used to acquire voltage simulation sampling signals and current simulation sampling signals. The harmonic analysis can be carried out according to the voltage simulation sampling signals and the current simulation sampling signals, and then the commercial power supply quantity and the generating set power supply quantity can be metered respectively, and then the commercial power supply quantity and the generating set power supply quantity can be transmitted to the monitoring device. The monitoring device is used to receive the commercial power supply quantity and the generating set power supply quantity to provide analysis reports. The invention also provides a power supply quantity subentry metering method.
Description
Technical field
The present invention relates to communication power supply technical field, particularly relate to a kind of delivery metering separate system and method.
Background technology
Communication base station generally uses civil power to be converted to direct current power supply to the device, when after mains failure, can use accumulator power supply to the device in the short time, if the mains failure time is longer, then adopts small size gasoline diesel generator set to meet an urgent need power supply to the device.
Adopt the charging way of small size gasoline diesel-electric set electric supply to have three kinds: one to be nominal power according to small size gasoline diesel generator set, be multiplied by generating duration to calculate oil consumption; Two is use two pieces of electric energy meters, or by intelligent electric meter, according to the open and-shut mode of the relay tip of small size gasoline diesel generator set, realize the record respectively of civil power and the generating number of degrees, and uploading to Surveillance center, the generated energy of statistics small size gasoline diesel generator set, calculates fuel consumption; Three is the generated energy adding up small size gasoline diesel generator set by detecting generating frequency, calculates fuel consumption.
But because the load of each communication base station is different, calculate oil consumption by first kind of way, accuracy rate is lower; Calculate oil consumption by the second way, although comparatively accurate, cannot stop the opening and closing of manual control relay, the generated energy caused is made a false report; Calculate oil consumption by the third mode, mains frequency and small size gasoline diesel-driven generator class frequency close to time may judge by accident, accuracy rate is lower.
Summary of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of delivery metering separate system and method, can improve the accuracy rate of automatic gauge delivery.
The technical scheme of the embodiment of the present invention is achieved in that
A kind of delivery metering separate system, described system comprises: metering outfit and watch-dog;
Described metering outfit, for obtaining voltage analog sampled signal and current analog sampled signal; Carry out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog;
Described watch-dog, for providing analysis report according to the described mains-supplied amount received and electric set electric supply amount.
System as above, wherein, described metering outfit comprises:
Sampling thief, for obtaining voltage analog sampled signal and current analog sampled signal, and sends to processor;
Processor, for receiving described voltage analog sampled signal and current analog sampled signal, frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to communication interface;
Communication interface, for sending to watch-dog by described mains-supplied amount and electric set electric supply amount;
Wherein, described sampling thief, described processor are connected successively with described communication interface.
System as above, wherein, described sampling thief comprises: the four-way digital isolator obtaining described voltage analog sampled signal, and, obtain the DC-DC DC/DC isolator of described current analog sampled signal.
System as above, wherein, described processor comprises: three-phase high-accuracy multifunctional electric energy computation chip and high-performance micro-control unit MCU;
Described three-phase high-accuracy multifunctional electric energy computation chip, for according to described voltage analog sampled signal and described current analog sampled signal, calculates and output parameter set;
Described high-performance MCU, for carrying out frequency analysis to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively.
System as above, wherein, described communication interface comprises: GMS/GPRS wave point or RS232 serial ports or Ethernet interface or SD card interface.
System as above, wherein, described four-way digital isolator is ADuM1400 four-way digital isolator; Described DC/DC isolator is ADuM5401 four-way isolator.
System as above, wherein, described three-phase high-accuracy multifunctional electric energy computation chip is ADE7878 computation chip; Described high-performance MCU is STM32F207MCU.
A kind of delivery metering separate method, described method comprises:
Metering outfit obtains voltage analog sampled signal and current analog sampled signal; Frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal; Measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog;
Described watch-dog provides analysis report according to the described mains-supplied amount received and electric set electric supply amount.
Method as above, wherein, described metering outfit carries out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measures mains-supplied amount and electric set electric supply amount respectively, comprising:
Described metering outfit, according to described voltage analog sampled signal and described current analog sampled signal, calculates parameter sets; Frequency analysis is carried out to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively.
Method as above, wherein, described parameter sets comprises: three-phase voltage parameter, three-phase current parameter, frequency parameter, power factor parameter, applied power parameter, active power parameter, reactive power parameter and each harmonic voltage parameter, individual harmonic current parameter.
The delivery metering separate system and method that the embodiment of the present invention provides, obtains voltage analog sampled signal and current analog sampled signal by metering outfit; Carry out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog; Analysis report is provided according to the described mains-supplied amount received and electric set electric supply amount again by watch-dog.So, the waveform of waveform when can utilize mains-supplied and electric set electric supply different, distinguish mains-supplied and electric set electric supply by frequency analysis, thus accurate-metering mains-supplied amount and electric set electric supply amount; Do not needing, on the artificial basis participated in, to improve the accuracy rate of automatic gauge delivery.
Accompanying drawing explanation
The structural representation of the delivery metering separate system that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of the delivery metering separate system that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the preferred delivery metering separate system that Fig. 3 provides for the embodiment of the present invention.
Embodiment
In the various embodiments of the invention, the waveform of waveform when utilizing mains-supplied and electric set electric supply different, adopt high-performance electric energy computation chip, distinguish mains-supplied and electric set electric supply by frequency analysis, realize the accurate measurement of civil power generated energy and genset generated energy.
The structural representation of the delivery metering separate system that Fig. 1 provides for the embodiment of the present invention one; The structural representation of the delivery metering separate system that Fig. 2 provides for the embodiment of the present invention two; The structural representation of the preferred delivery metering separate system that Fig. 3 provides for the embodiment of the present invention.Shown in composition graphs 1 to Fig. 3, the delivery metering separate system that the present embodiment provides can comprise: metering outfit 10 and watch-dog 20;
Described metering outfit 10, for obtaining voltage analog sampled signal and current analog sampled signal; Carry out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog;
Watch-dog 20, for providing analysis report according to the described mains-supplied amount received and electric set electric supply amount.
Concrete, as shown in Figure 2, described metering outfit 10 comprises: sampling thief 11, for obtaining voltage analog sampled signal and current analog sampled signal, and sends to processor 12; Processor 12, for receiving described voltage analog sampled signal and current analog sampled signal, frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to communication interface 13; Communication interface 13, for sending to watch-dog 20 by described mains-supplied amount and electric set electric supply amount; Wherein, described sampling thief 11, described processor 12 are connected successively with described communication interface 13.
When measuring mains-supplied amount and electric set electric supply amount, processor can according to voltage analog sampled signal and current analog sampled signal, calculate parameter sets, and according to civil power and the harmonic voltage of genset, the different of electric current weighting parameter, differentiation is mains-supplied or electric set electric supply, accumulative preservation respectively, thus realize the metering respectively of mains-supplied amount and electric set electric supply amount.
Concrete, described sampling thief 11 comprises the four-way digital isolator obtaining described voltage analog sampled signal, and obtains DC-DC (DC/DC) isolator of described current analog sampled signal; Described processor 12 comprises three-phase high-accuracy multifunctional electric energy computation chip and high-performance micro-control unit (MicrocontrollerUnit, MCU); Described three-phase high-accuracy multifunctional electric energy computation chip is used for according to described voltage analog sampled signal and described current analog sampled signal, calculates and output parameter set; Described high-performance MCU is used for carrying out frequency analysis to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively; Wherein, described parameter sets comprises: three-phase voltage parameter, three-phase current parameter, frequency parameter, power factor parameter, applied power parameter, active power parameter, reactive power parameter and each harmonic voltage parameter, individual harmonic current parameter.
Comparatively preferred, as shown in Figure 2, described four-way digital isolator is ADuM1400 four-way digital isolator; Described DC/DC isolator is ADuM5401 four-way isolator; Described three-phase high-accuracy multifunctional electric energy computation chip is ADE7878 computation chip; Described high-performance MCU is STM32F207MCU; Described communication interface 13 comprises: GMS/GPRS wave point or RS232 serial ports or Ethernet interface or SD card interface.
In actual applications, ADuM1400 four-way digital isolator gathers the sampling of UA, UB, UC three-phase voltage and isolation, drops within 0.5 volt, provide voltage analog sampled signal to ADE7878 computation chip by voltage in 600:1 ratio; ADuM5401 four-way isolator is connected with IA, IB, IC three-phase sensor respectively, for ADE7878 computation chip provides the current analog sampled signal lower than 0.5 peace.
ADE7878 computation chip can provide total (first-harmonic+harmonic wave) active power of fundamental active power and reactive power and reactive power simultaneously, apparent electric energy metrical, and fundamental active and reactive energy measurement and root-mean-square value (RMS) calculate.Current monitoring under battery powered mode is provided, thus whether mates with three-phase current algebraic sum by detecting neutral current, carry out anti-electricity-theft detection.
ADE7878 computation chip is according to described voltage analog sampled signal and described current analog sampled signal, through calculating output parameter set, namely export three-phase voltage parameter, three-phase current parameter, frequency parameter, power factor parameter, applied power parameter, active power parameter, reactive power parameter and each harmonic voltage parameter, individual harmonic current parameter, and send STM32F207MCU process to.
STM32F207MCU receives the parameter sets that ADE7878 computation chip exports, carry out frequency analysis process, and according to civil power and genset harmonic voltage, electric current weighting parameter different, differentiation be mains-supplied and or genset generating, accumulatively respectively to preserve, described mains-supplied amount and electric set electric supply amount and parameter sets are sent to watch-dog 20 by communication interface 13 simultaneously.
Watch-dog 20 receives mains-supplied amount and electric set electric supply amount and parameter sets, preserves in a database; And based on the mains-supplied amount received and electric set electric supply amount and parameter sets, form graphic analyses report for monitoring statistical study.
The delivery metering separate system that the present embodiment provides, can improve the accuracy rate of metering mains-supplied amount and electric set electric supply amount, getting rid of false generating behavior.
The embodiment of the present invention also provides a kind of delivery metering separate method, and described method comprises:
Metering outfit obtains voltage analog sampled signal and current analog sampled signal; Frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal; Measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog.
Described watch-dog provides analysis report according to the described mains-supplied amount received and electric set electric supply amount.
Wherein, described metering outfit carries out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, comprise: described metering outfit, according to described voltage analog sampled signal and described current analog sampled signal, calculates parameter sets; Frequency analysis is carried out to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively.Described parameter sets comprises: three-phase voltage parameter, three-phase current parameter, frequency parameter, power factor parameter, applied power parameter, active power parameter, reactive power parameter and each harmonic voltage parameter, individual harmonic current parameter.
The delivery metering separate method that the present embodiment provides, can be applicable to the technical scheme of said system embodiment, it realizes principle and technique effect is similar, repeats no more herein.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. a delivery metering separate system, is characterized in that, described system comprises: metering outfit and watch-dog;
Described metering outfit, for obtaining voltage analog sampled signal and current analog sampled signal; Carry out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog;
Described watch-dog, for providing analysis report according to the described mains-supplied amount received and electric set electric supply amount.
2. system according to claim 1, is characterized in that, described metering outfit comprises:
Sampling thief, for obtaining voltage analog sampled signal and current analog sampled signal, and sends to processor;
Processor, for receiving described voltage analog sampled signal and current analog sampled signal, frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal, measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to communication interface;
Communication interface, for sending to watch-dog by described mains-supplied amount and electric set electric supply amount;
Wherein, described sampling thief, described processor are connected successively with described communication interface.
3. system according to claim 1, is characterized in that, described sampling thief comprises: the four-way digital isolator obtaining described voltage analog sampled signal, and, obtain the DC-DC DC/DC isolator of described current analog sampled signal.
4. system according to claim 1, is characterized in that, described processor comprises: three-phase high-accuracy multifunctional electric energy computation chip and high-performance micro-control unit MCU;
Described three-phase high-accuracy multifunctional electric energy computation chip, for according to described voltage analog sampled signal and described current analog sampled signal, calculates and output parameter set;
Described high-performance MCU, for carrying out frequency analysis to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively.
5. system according to claim 1, is characterized in that, described communication interface comprises: GMS/GPRS wave point or RS232 serial ports or Ethernet interface or SD card interface.
6. system according to claim 2, is characterized in that, described four-way digital isolator is ADuM1400 four-way digital isolator; Described DC/DC isolator is ADuM5401 four-way isolator.
7. system according to claim 3, is characterized in that, described three-phase high-accuracy multifunctional electric energy computation chip is ADE7878 computation chip; Described high-performance MCU is STM32F207MCU.
8. a delivery metering separate method, is characterized in that, described method comprises:
Metering outfit obtains voltage analog sampled signal and current analog sampled signal; Frequency analysis is carried out according to described voltage analog sampled signal and current analog sampled signal; Measure mains-supplied amount and electric set electric supply amount respectively, and described mains-supplied amount and electric set electric supply amount are sent to watch-dog;
Described watch-dog provides analysis report according to the described mains-supplied amount received and electric set electric supply amount.
9. method according to claim 8, is characterized in that, described metering outfit carries out frequency analysis according to described voltage analog sampled signal and current analog sampled signal, measures mains-supplied amount and electric set electric supply amount respectively, comprising:
Described metering outfit, according to described voltage analog sampled signal and described current analog sampled signal, calculates parameter sets; Frequency analysis is carried out to described parameter sets, measures mains-supplied amount and electric set electric supply amount respectively.
10. method according to claim 8 or claim 9, it is characterized in that, described parameter sets comprises: three-phase voltage parameter, three-phase current parameter, frequency parameter, power factor parameter, applied power parameter, active power parameter, reactive power parameter and each harmonic voltage parameter, individual harmonic current parameter.
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| CN201510946938.7A CN105445544A (en) | 2015-12-15 | 2015-12-15 | Power supply quantity subentry metering system and method |
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| CN201510946938.7A CN105445544A (en) | 2015-12-15 | 2015-12-15 | Power supply quantity subentry metering system and method |
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Cited By (2)
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| CN106841879A (en) * | 2017-03-29 | 2017-06-13 | 中国电力科学研究院 | The method that detection electric current metering secondary concatenates rectifier |
| WO2018024164A1 (en) * | 2016-08-03 | 2018-02-08 | 成都昊普环保技术有限公司 | Method and system for determining power supply of base station device |
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