CN204992602U - Intelligence dynamic reactive compensation controlling means - Google Patents
Intelligence dynamic reactive compensation controlling means Download PDFInfo
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- CN204992602U CN204992602U CN201520739926.2U CN201520739926U CN204992602U CN 204992602 U CN204992602 U CN 204992602U CN 201520739926 U CN201520739926 U CN 201520739926U CN 204992602 U CN204992602 U CN 204992602U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model belongs to the technical field of dynamic reactive compensation, concretely relates to intelligence dynamic reactive compensation controlling means, it includes detection and measured module, power module, host system, RS485 communication module and man -machine interaction module, detect and include three phase current measuring circuit, three -phase voltage measurement circuit and signal acquisition circuit with measured module, signal acquisition circuit is the ADE7878 chip, man -machine interaction module includes press unit and LCD display element, power module, detection are connected with host system respectively with measured module and man -machine interaction module, host system is used for connecting the reactive compensation module through RS485 communication module, host system still is connected with watchdog circuit module, protection circuit module and clock circuit module. The utility model discloses can guarantee procedure normal operating, the drop -dead halt takes place for the procedure that prevents to power factor, the system control precision of electric wire netting can also be improved, the electric energy is practiced thrift.
Description
Technical field
The utility model belongs to Technology of Dynamic Reactive Power Compensation field, is specifically related to a kind of Intelligent Dynamic reactive compensation controlling device.
Background technology
In industrial production and life, most of load is all in resistance sense, need to consume a large amount of reactive powers, the transmission of reactive power in transmission line can cause electric current in circuit to increase, thus the loss of electric energy in increase circuit, because reactive power compensator can improve power supplying efficiency, improve power supply environment, so in order to reduce the reactive power in electrical network, improve power factor, reduce line loss, often in electrical network, reactive power compensator is installed, reactive power compensator is in an indispensable very important position in power supply system, and excellent compensation arrangement can be accomplished to reduce via net loss to greatest extent.Current existing reactive compensation controlling device, certainty of measurement is not high, in use easily occurs program endless loop, the problems such as poor stability.
Utility model content
The purpose of this utility model is to provide a kind of Intelligent Dynamic reactive compensation controlling device that can improve power factor of electric network, saves energy.
For achieving the above object, the utility model is by the following technical solutions: a kind of Intelligent Dynamic reactive compensation controlling device, comprise detection and measurement module, power module, main control module, RS485 communication module and human-computer interaction module, described detection and measurement module comprise three-phase current measuring circuit, three-phase voltage measuring circuit and signal acquisition circuit, described signal acquisition circuit is ADE7878 chip, described human-computer interaction module comprises push-button unit and LCD display unit, described power module, detect and be connected with main control module respectively with measurement module and human-computer interaction module, described main control module by RS485 communication module for connecting reactive compensation module, described main control module is also connected with watchdog circuit module, protective circuit module and clock circuit module.
Described main control module comprises LPC2368 controller.
Described watchdog circuit module comprises SP706SEN chip, the house dog output of described SP706SEN chip is connected with the hand-reset input of SP706SEN chip by button, the hand-reset input of SP706SEN chip connects power supply by the first resistance, described first resistance two ends are parallel with the first electric capacity, the power input of SP706SEN chip connects power supply, the power input of SP706SEN chip is also by the second capacity earth, the earth terminal ground connection of SP706SEN chip, the voltage monitoring input end grounding of SP706SEN chip, the voltage monitoring output of SP706SEN chip puts sky, the clear dog input of SP706SEN chip is connected with LPC2368 main controller, the reset signal output of SP706SEN chip is by the second grounding through resistance, the reset signal output of SP706SEN chip is connected with LPC2368 main controller.
Described protective circuit module comprises alarm unit and LED indicating member.
Described clock circuit module comprises ISL1208 chip, the output of the inverting amplifier of described ISL1208 chip is connected with the input of inverting amplifier by crystal oscillator, the stand-by power supply input of ISL1208 chip passes through battery ground, the stand-by power supply input of ISL1208 chip is connected with the negative pole of the first diode by the 3rd resistance, the positive pole of described first diode connects power supply, the earth terminal ground connection of ISL1208 chip, interrupt output/the frequency output terminal of ISL1208 chip is connected with power supply by the 4th resistance, the clock signal terminal of ISL1208 chip is connected with power supply by the 5th resistance, the bi-direction data signal end of ISL1208 chip is connected with power supply by the 6th resistance, interrupt output/the frequency output terminal of ISL1208 chip, clock signal terminal, bi-direction data signal end is also connected with LPC2368 main controller respectively, the power supply termination power of ISL1208 chip, the power end of ISL1208 chip is also connected with the positive pole of polar capacitor, the minus earth of described polar capacitor, the two ends of polar capacitor are parallel with the 3rd electric capacity.
Described three-phase current measuring circuit includes the identical monophase current measuring circuit of three line structures, monophase current measuring circuit includes current transformer, the current input terminal of described current transformer is connected the current detecting end of detected object with current output terminal, first current measurement signal output of described current transformer connects the current signal input of connection signal Acquisition Circuit after the first filter circuit and the first protective circuit, second current measurement signal output of described current transformer connects the current signal input of connection signal Acquisition Circuit after the second filter circuit and the second protective circuit.
Described three-phase voltage measuring circuit includes the identical single-phase voltage measuring circuit of three line structures, described single-phase voltage measuring circuit includes bleeder circuit, voltage transformer, two inputs of described voltage transformer connect the voltage detecting end of detected object by bleeder circuit, the voltage signal inputs of connection signal Acquisition Circuit after first voltage measurement signal output connection the 3rd filter circuit of described voltage transformer, the second voltage measurement signal output head grounding of described voltage transformer.
The input of described three-phase current measuring circuit and the input of three-phase voltage measuring circuit are connected current detecting end and the voltage detecting end of detected object by outer input interface.
Compared with prior art, the utility model has the following advantages:
1, the main control module in the utility model is connected with watchdog circuit module, can monitoring program normally run, and effectively prevents program generation endless loop;
2, the main control module in the utility model is connected with clock circuit module, can the setting of deadline parameter by clock circuit module, and enough shows current time and date in real time by LCD display unit;
3, main control module in the utility model is connected with protective circuit module, protective circuit module comprises alarm unit and LED indicating member, when electrical network parameter exceedes set point, such as, there is overvoltage in circuit, overcurrent, during the situation such as under-voltage, main control module can send signal to protective circuit module, corresponding indicator light in LED indicating member is bright, be convenient to staff's reference, alarm unit can send warning, cause the attention of staff, simultaneously, main control module can send signal by RS485 communication module to reactive compensation module, realize the protection to circuit, to network system Reactive Power Compensation in real time,
4, the detection in the utility model and measurement module measure three-phase current and three-phase voltage by three-phase current measuring circuit, three-phase voltage measuring circuit, adopt ADE7878 chip to carry out collection to calculate, multiple parameters of electric power can be gathered, and show various parameters of electric power in real time by LCD display unit, certainty of measurement is high, good stability, circuit structure is simple.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the circuit diagram of watchdog circuit module in the utility model.
Fig. 3 is the circuit diagram of clock circuit module in the utility model.
Fig. 4 detects the circuit diagram with measurement module in the utility model.
Embodiment
A kind of Intelligent Dynamic reactive compensation controlling device as shown in Figure 1, it comprises detection and measurement module 1, power module 2 main control module 3, RS485 communication module 7 and human-computer interaction module 4, detect and comprise three-phase current measuring circuit, three-phase voltage measuring circuit and signal acquisition circuit with measurement module 1, signal acquisition circuit is ADE7878 chip U3; Main control module 3 comprises LPC2368 controller, and human-computer interaction module 4 comprises push-button unit and LCD display unit; Detect and be connected with main control module 3 respectively with measurement module 1, power module 2 and human-computer interaction module 4.Main control module 3 is also connected with clock circuit module 5, watchdog circuit module 6 and protective circuit module 8, and protective circuit module comprises alarm unit and LED indicating member.Main control module by RS485 communication module for connecting reactive compensation module.
As shown in Figure 2, watchdog circuit module comprises SP706SEN chip U1, the house dog output (pin 8) of SP706SEN chip U1 is connected with the hand-reset input (pin 1) of SP706SEN chip U1 by button K1, the hand-reset input (pin 1) of SP706SEN chip U1 meets power supply VCC by the first resistance R41, first resistance R41 two ends are parallel with the first electric capacity C41, the power input (pin 2) of SP706SEN chip U1 connects power supply, the power input (pin 2) of SP706SEN chip U1 is also by the second electric capacity C42 ground connection, the earth terminal (pin 3) of SP706SEN chip U1, voltage monitoring input (pin 4) is ground connection all, the voltage monitoring output (pin 5) of SP706SEN chip U1 puts sky, the clear dog input (pin 6) of SP706SEN chip U1 is connected with LPC2368 main controller, the reset signal output (pin 7) of SP706SEN chip U1 is by the second resistance R42 ground connection, the reset signal output (pin 7) of SP706SEN chip U1 is also connected with LPC2368 main controller.
As shown in Figure 3, clock circuit module comprises ISL1208 chip U2, the output (pin 2) of the inverting amplifier of ISL1208 chip U2 is connected with the input (pin 1) of inverting amplifier by the first crystal oscillator Y1, the stand-by power supply input (pin 3) of ISL1208 chip U2 is by battery BAT1 ground connection, the stand-by power supply input (pin 3) of ISL1208 chip U2 is connected with the negative pole of the first diode D1 by the 3rd resistance R43, the positive pole of the first diode D1 connects power supply, earth terminal (pin 4) ground connection of ISL1208 chip U2, interrupt output/the frequency output terminal (pin 7) of ISL1208 chip U2 is connected with power supply by the 4th resistance R44, the clock signal terminal (pin 6) of ISL1208 chip U2 is connected with power supply by the 5th resistance R45, the bi-direction data signal end (pin 5) of ISL1208 chip U2 is connected with power supply by the 6th resistance R46, interrupt output/the frequency output terminal (pin 7) of ISL1208 chip U2, clock signal terminal (pin 6), bi-direction data signal end (pin 5) is also connected with LPC2368 main controller respectively, the power end (pin 8) of ISL1208 chip U2 connects power supply, the power end (pin 8) of ISL1208 chip U2 is also connected with the positive pole of polar capacitor C44, the minus earth of polar capacitor C44, the two ends of polar capacitor C44 are parallel with the 3rd electric capacity C43.
As shown in Figure 4; detect and include the identical monophase current measuring circuit of three line structures with the three-phase current measuring circuit in measurement module 1; be described for the first via; monophase current measuring circuit includes current transformer T2; the current input terminal of described current transformer T2, current output terminal (IA*, IA) connect the current detecting end of detected object, and the first current measurement signal output of described current transformer T2 connects the current signal input (IAP) of connection signal Acquisition Circuit after the first filter circuit and the first protective circuit.The first described filter circuit includes the first current measurement signal output of the 13 resistance R13, the 14 resistance R14 and the 7th electric capacity C7, T2 by the 13 resistance R13 ground connection, simultaneously also by the 14 resistance R14 and the 7th electric capacity C7 ground connection; The first described protective circuit is the plus earth of the 3rd diode DB3, the 3rd diode DB3, the current signal input (IAP) of negative pole connection signal Acquisition Circuit.The second current measurement signal output of described current transformer T2 connects the current signal input (IAN) of connection signal Acquisition Circuit after the second filter circuit and the second protective circuit.The structure of the second described filter circuit is identical with the structure of the first filter circuit; The structure of the second described protective circuit is identical with the structure of the first protective circuit.
As shown in Figure 4, detect and include the identical single-phase voltage measuring circuit of three line structures with the three-phase voltage measuring circuit in measurement module 1, be described for the first via, described single-phase voltage measuring circuit includes bleeder circuit, voltage transformer T1, two input (Va of described voltage transformer T1, VN) the voltage detecting end of detected object is connected by bleeder circuit, the voltage signal inputs (VAP) of connection signal Acquisition Circuit after first voltage measurement signal output connection the 3rd filter circuit of described voltage transformer T1, second voltage measurement signal output head grounding of described voltage transformer.Wherein said bleeder circuit includes the 7th resistance R7, the 9th resistance R9 and the tenth resistance R10, an input of voltage transformer T1 connects the voltage detecting end VN connecting detected object after the 9th resistance R9 connects the tenth resistance R10 with another input of the voltage detecting end Va being connected detected object after the 7th resistance R7, voltage transformer T1; The structure of the 3rd described filter circuit is identical with the structure of the first filter circuit.
The input of wherein said three-phase current measuring circuit and the input of three-phase voltage measuring circuit are connected current detecting end and the voltage detecting end of detected object by outer input interface XS1.
As shown in Figure 4, that detection and the signal acquisition circuit in measurement module 1 adopt is ADE7878 chip U3, ADE7878 chip U3 is communicated to connect by communication interface XP1 and main control module 3, the 3.3v voltage of main control module 3 and read-write are introduced ADE7878 chip U3, the output signal of ADE7878 chip U3 is introduced main control module 3 etc.15 electric capacity C15, the 16 electric capacity C16 and the second crystal oscillator Y2 form crystal oscillating circuit, and the 14 electric capacity C14, the 22 electric capacity C22, the 12 electric capacity C12 and the 3rd electric capacity C3 are filter capacitor.ADE7878 chip U3 is a high accuracy, three phase electric energy measurement IC, adopts serial line interface, and provides the pulse flexibly of three roads to export.This device built-in second order sigma-delta type ADC, digital integrator, reference voltage source circuit and all required signal processing circuits, total (first-harmonic and harmonic wave) meritorious, idle and apparent power measurement can be performed, fundamental active and wattless power measurement, and effective value calculating etc.ADE7878 chip U3 is applicable to three phase arrangement meritorious, idle and apparent power, such as Y shape or the triangle etc. of measuring various three lines, four lines; Respectively mutually all there is system calibration function, i.e. effective value offset correction, phase alignment and gain calibration; CF1, CF2 logic exports can provide many power informations: total/fundamental active/reactive power, total apparent power or current effective value and.ADE7878 chip U3 has waveform sampling register, allows all ADC of access to export.This device also provides the quality of power supply to measure, such as: low pressure or high pressure detection, short high current change, line voltage cycle measurement and the angle etc. between phase voltage and electric current in short-term.
Operation principle: power module 2 provides power supply to main control module, detect the three-phase current measuring detected object with the three-phase current measuring circuit in measurement module 1, and measurement current signal is sent to signal acquisition circuit, detect the three-phase voltage measuring detected object with the three-phase voltage measuring circuit in measurement module 1, and measurement voltage signal is sent to signal acquisition circuit, signal acquisition circuit is ADE7878 chip U3, three-phase voltage current is calculated by the built-in function of ADE7878 chip U3, idle and active power, power factor, harmonic component, frequency, the parameters of electric power such as four-quadrant electric degree, and send these parameters to main control module 3 by communication interface, main control module 3 can adopt 32 high-performance LPC2368 controllers to be kernel control chip, main control module 3 carries out process to the received signal and judges, main control module 3 controls reactive compensation module by RS485 communication module 7, complete the monitoring of reactive compensation module state and the operating passing zero unit that controls in reactive compensation module the switching of low voltage power capacitor, when electrical network parameter exceedes set point, such as, when there is overvoltage, overcurrent, the situation such as under-voltage in circuit, main control module 3 sends signal to protective circuit module 8, corresponding indicator light in LED indicating member is bright, be convenient to staff's reference, alarm unit can send warning, cause the attention of staff, meanwhile, main control module 3 can send signal by RS485 communication module 7 to reactive compensation module, controls the corresponding low voltage power capacitor of operating passing zero unit switching in reactive compensation module, realize the protection to circuit, to network system Reactive Power Compensation in real time, can be arranged time parameter by clock circuit module 5, and current time and date can be shown in real time by LCD display unit, main control module 3 timing sends clear dog signal to watchdog circuit module 6, if reach setting-up time, main control module 3 sends clear dog signal to watchdog circuit module 6 not yet, then send reset signal to main control module 3, prevent program generation endless loop, monitoring program is normally run, push-button unit in human-computer interaction module comprises four buttons, for completing the setting of changing interface and each parameters of electric power, LCD display unit in human-computer interaction module is mainly used in three-phase voltage current, idle with parameters of electric power such as active power, power factor, harmonic component, frequency, four-quadrant electric degrees, and Time of Day, low voltage power capacitor the content such as switching state.The utility model can high-precision measurement three-phase voltage current, idle with parameters of electric power such as active power, power factor, frequencies, normal program operation can be ensured, prevent program generation endless loop, and power factor, the Systematical control precision of electrical network can be improved, saves energy.
Claims (8)
1. an Intelligent Dynamic reactive compensation controlling device, it is characterized in that: comprise detection and measurement module, power module, main control module, RS485 communication module and human-computer interaction module, described detection and measurement module comprise three-phase current measuring circuit, three-phase voltage measuring circuit and signal acquisition circuit, described signal acquisition circuit is ADE7878 chip, described human-computer interaction module comprises push-button unit and LCD display unit, described power module, detect and be connected with main control module respectively with measurement module and human-computer interaction module, described main control module by RS485 communication module for connecting reactive compensation module, described main control module is also connected with watchdog circuit module, protective circuit module and clock circuit module.
2. Intelligent Dynamic reactive compensation controlling device as claimed in claim 1, is characterized in that: described main control module comprises LPC2368 controller.
3. Intelligent Dynamic reactive compensation controlling device as claimed in claim 2, it is characterized in that: described watchdog circuit module comprises SP706SEN chip, the house dog output of described SP706SEN chip is connected with the hand-reset input of SP706SEN chip by button K1, the hand-reset input of SP706SEN chip connects power supply by the first resistance, described first resistance two ends are parallel with the first electric capacity, the power input of SP706SEN chip connects power supply, the power input of SP706SEN chip is also by the second capacity earth, the earth terminal ground connection of SP706SEN chip, the voltage monitoring input end grounding of SP706SEN chip, the voltage monitoring output of SP706SEN chip puts sky, the clear dog input of SP706SEN chip is connected with LPC2368 main controller, the reset signal output of SP706SEN chip is by the second grounding through resistance, the reset signal output of SP706SEN chip is also connected with LPC2368 main controller.
4. Intelligent Dynamic reactive compensation controlling device as claimed in claim 3, is characterized in that: described protective circuit module comprises alarm unit and LED indicating member.
5. Intelligent Dynamic reactive compensation controlling device as claimed in claim 4, it is characterized in that: described clock circuit module comprises ISL1208 chip, the output of the inverting amplifier of described ISL1208 chip is connected with the input of inverting amplifier by crystal oscillator, the stand-by power supply input of ISL1208 chip passes through battery ground, the stand-by power supply input of ISL1208 chip is connected with the negative pole of the first diode by the 3rd resistance, the positive pole of described first diode connects power supply, the earth terminal ground connection of ISL1208 chip, interrupt output/the frequency output terminal of ISL1208 chip is connected with power supply by the 4th resistance, the clock signal terminal of ISL1208 chip is connected with power supply by the 5th resistance, the bi-direction data signal end of ISL1208 chip is connected with power supply by the 6th resistance, interrupt output/the frequency output terminal of ISL1208 chip, clock signal terminal, bi-direction data signal end is also connected with LPC2368 main controller respectively, the power supply termination power of ISL1208 chip, the power end of ISL1208 chip is also connected with the positive pole of polar capacitor, the minus earth of described polar capacitor, the two ends of polar capacitor are parallel with the 3rd electric capacity.
6. Intelligent Dynamic reactive compensation controlling device as claimed in claim 5, it is characterized in that: described three-phase current measuring circuit includes the identical monophase current measuring circuit of three line structures, monophase current measuring circuit includes current transformer, the current input terminal of described current transformer is connected the current detecting end of detected object with current output terminal, first current measurement signal output of described current transformer connects the current signal input of connection signal Acquisition Circuit after the first filter circuit and the first protective circuit, second current measurement signal output of described current transformer connects the current signal input of connection signal Acquisition Circuit after the second filter circuit and the second protective circuit.
7. Intelligent Dynamic reactive compensation controlling device as claimed in claim 6, it is characterized in that: described three-phase voltage measuring circuit includes the identical single-phase voltage measuring circuit of three line structures, described single-phase voltage measuring circuit includes bleeder circuit, voltage transformer, two inputs of described voltage transformer connect the voltage detecting end of detected object by bleeder circuit, the voltage signal inputs of connection signal Acquisition Circuit after first voltage measurement signal output connection the 3rd filter circuit of described voltage transformer, second voltage measurement signal output head grounding of described voltage transformer.
8. Intelligent Dynamic reactive compensation controlling device as claimed in claim 6, is characterized in that: the input of described three-phase current measuring circuit and the input of three-phase voltage measuring circuit are connected current detecting end and the voltage detecting end of detected object by outer input interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739926.2U CN204992602U (en) | 2015-09-23 | 2015-09-23 | Intelligence dynamic reactive compensation controlling means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520739926.2U CN204992602U (en) | 2015-09-23 | 2015-09-23 | Intelligence dynamic reactive compensation controlling means |
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| CN204992602U true CN204992602U (en) | 2016-01-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634135A (en) * | 2016-02-26 | 2016-06-01 | 国网山东省电力公司章丘市供电公司 | Electric energy quality protection apparatus for power supply station |
| CN110007144A (en) * | 2019-04-30 | 2019-07-12 | 杭州万高科技股份有限公司 | A kind of frequency measurement method and associated component of input signal |
-
2015
- 2015-09-23 CN CN201520739926.2U patent/CN204992602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634135A (en) * | 2016-02-26 | 2016-06-01 | 国网山东省电力公司章丘市供电公司 | Electric energy quality protection apparatus for power supply station |
| CN110007144A (en) * | 2019-04-30 | 2019-07-12 | 杭州万高科技股份有限公司 | A kind of frequency measurement method and associated component of input signal |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |