CN201656476U - Electricity energy quality optimizing device based on field bus - Google Patents
Electricity energy quality optimizing device based on field bus Download PDFInfo
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- CN201656476U CN201656476U CN201020173513XU CN201020173513U CN201656476U CN 201656476 U CN201656476 U CN 201656476U CN 201020173513X U CN201020173513X U CN 201020173513XU CN 201020173513 U CN201020173513 U CN 201020173513U CN 201656476 U CN201656476 U CN 201656476U
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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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- 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
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to an electricity energy quality optimizing device based on field bus, comprising an electricity energy quality optimizing controller, an electric quantity detection device, an electricity controller and a reactive harmonic management system; the electric quantity detection device and the electricity controller are respectively connected with the power system, the electric quantity detection device and the electricity controller are provided with Profibus-DP and Mobus filed bus functions and are communicated with the electricity energy quality optimizing controller by an industrial local area network; the electric quantity detection device can detect the electric quantity of the power system in a real-time manner, electric quantity parameters can be transmitted to the electricity energy quality optimizing controller, so as to optimize and control the power system; compared with the prior art, the electricity energy quality optimizing controller has the beneficial effects that: the sate of the electricity network can be monitored in a real-time manner by the method, the purpose of rational electricity utilization is achieved, and the device can compensate the electricity network reactively in a real-time manner, the harmonic waves can be inhibited, and electricity network quality optimizing function is achieved.
Description
Technical field
The utility model relates to a kind of electric energy optimizing system.
Background technology
Electric energy is the important restraining factors in basis and society of modern economy development, and it is related to economic security and national security.Current electric energy major part derives from non-renewable fuel, problem such as based on this factor, that electric energy also is related to is energy-conservation, reduction of discharging and environmental protection.
Therefore, improve the quality of power supply, saves energy is the problem that present society pays close attention to.
Along with power electronic equipment is used increasingly extensively, the electrical network load is also increasingly sophisticated.Non-linear, the impact of electrical network load and the unbalanced electrical characteristics of using are on the rise the harmonic pollution in the electrical network, simultaneously, have also brought extra idle burden to electrical network, and power factor seriously descends.Thereby, power consumption equipment and line loss are increased, voltage produces big ups and downs, and power supply quality seriously reduces, and harmonic loss also might influence the equipment operate as normal, causes vibration, heat, noise, and the automatics misoperation produces interference etc. to communication system.
Existence at present much improves the method for the quality of power supply, for example, fixed capacitor group, automatic power factor controller etc., but these schemes are functional for fixing load compensation, but relatively poor for the dynamic load compensation performance, but the response speed of its control device such as FC, APFC is slower.For solving the slow problem of response speed, use static var compensator based on thyristor.But the capacity of capacitor among the TSC/TCR and reactor group is predefined, may produce the undercompensation or the overcompensation of reactive power compensation, and the harmonic wave effect is not fine.In addition, because capacitor group and the frequent break-make of switchgear in the equipment, compensation characteristic is stairstepping, and produces harmonic wave in compensation process, and simultaneously compensation characteristic is relevant with load, also may break down and reduces useful life.
Present most power consumption equipment does not have reactive power compensation and harmonic suppression apparatus, even adopted simple compensation and restraining device, effect is also undesirable.The electrical parameter to power consumption equipment does not detect in real time, does not in time assess energy state.Therefore, can't carry out sharing of load, carry out rational utilization of electricity at electric network state in real time, can't in time suppress idle compensating with harmonic wave.
The utility model content
The purpose of this utility model is the defective at prior art, aim to provide a kind of Fieldbus Based electric energy quality optimizing device, this device can be monitored in real time to the state of power utilization network, reach the purpose of rational utilization of electricity, and can be to the idle real-Time Compensation of carrying out of electrical network, and can suppress harmonic wave, reach optimization function to power grid quality.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of Fieldbus Based electric energy quality optimizing device, comprise electric energy quality optimizing controller, electric quantity detection apparatus, dsm controller, idle harmonic wave control system, electric quantity detection apparatus is connected with using electricity system respectively with dsm controller, electric quantity detection apparatus and dsm controller all have Profibus-DP and Modbus fieldbus function, communicate by industrial local network and electric energy quality optimizing controller; The electric energy quality optimizing controller also communicates by industrial local network and idle harmonic wave control system.
The electric energy quality optimizing controller also is connected to the GPRS wireless telecommunication system, and the information of electric energy quality optimizing controller is sent to remote monitoring system with wireless mode.
Electric quantity detection apparatus comprises control unit, measured chip, watchdog circuit, clock circuit, temperature element, LCD screen, and control unit is connected with measured chip, watchdog circuit, clock circuit, temperature element, LCD screen respectively.Control unit also is connected with button and buzzer, and button has input function; Buzzer has warning function.
Dsm controller comprises microprocessor CPU 1, microprocessor CPU 2, reset circuit, crystal oscillating circuit, relay, SPC3 chip, power module, microprocessor CPU 1 is connected with reset circuit, contactless relay output respectively, and microprocessor CPU 1 also connects the 20MHz crystal oscillating circuit; Microprocessor CPU 2 is connected with 20MHz crystal oscillating circuit, SPC3 chip, high speed photo coupling respectively; Microprocessor CPU 1 all is connected with the bus driver module with microprocessor CPU 2.
Low pressure dynamic passive compensation and harmonic suppression apparatus comprise that testing circuit, control circuit, harmonic wave suppress and reactive power compensation circuit, be used for detecting in real time the harmonic current that nonlinear load produces and the testing circuit of reactive power and be connected to electrical network, be connected with control circuit, harmonic wave inhibition and reactive power compensation circuit successively, harmonic wave suppresses and the other end of reactive power compensation circuit is connected with the input of nonlinear load again.
Harmonic wave suppresses and reactive power compensation circuit is the current transformer that full-control type or half control type switching device are formed, and is non-four-quadrant two level structures or four-quadrant two level architecture.
Compared with prior art, the beneficial effects of the utility model are: this method can be monitored in real time to the state of power utilization network, reaches the purpose of rational utilization of electricity, and can be to the idle real-Time Compensation of carrying out of electrical network, and can suppress harmonic wave, reach optimization function to power grid quality.
Description of drawings
Fig. 1 is based on the overall structure figure of the electric energy quality optimizing device of fieldbus;
Fig. 2 is the structured flowchart of electric quantity detection apparatus;
Fig. 3 is the structured flowchart of dsm controller;
Fig. 4 is the structured flowchart of low pressure dynamic passive compensation and harmonic suppression apparatus;
Fig. 5 is that current transformer is the circuit diagram of non-four-quadrant two level structures;
Fig. 6 is that current transformer is the circuit diagram of four-quadrant two level structures.
Embodiment
See Fig. 1, a kind of Fieldbus Based electric energy quality optimizing device, detect in real time by the electric weight of electric quantity detection apparatus using electricity system, by industrial local network electrical parameter is transferred to the electric energy quality optimizing controller, make control decision by the electric energy quality optimizing controller, by industrial local network realization electric energy quality optimizing controller dsm controller is controlled, dsm controller carries out the electricity consumption optimal control to the using electricity system of correspondence again.
Electric quantity detection apparatus, electric energy quality optimizing controller, dsm controller all have Profibus-DP and Modbus fieldbus function, by the mutual communication of industrial local network.
Using electricity system is several, can be power consumption equipment, as motor, electric furnace, heater; Also can be with motor group, electricity consumption workshop; Or electricity consumption department, one use electric unit.
Be provided with hardware system, electric energy quality optimizing software and configuration software that DSP forms in the electric energy quality optimizing controller, have electric energy quality optimizing decision making function and driving display function, information such as display show state picture, electrical energy parameter and accident alarming.
Electric quantity detection apparatus is the electrical parameter of detection system in real time, for electric energy quality controller provides foundation; A plurality of using electricity systems carry out rational utilization of electricity under the control of electric energy quality controller.
The electric energy quality optimizing controller also is connected to the GPRS wireless telecommunication system, the information of electric energy quality optimizing controller can be sent to remote monitoring system with wireless mode.
See Fig. 1, the electric energy quality optimizing controller also is connected with idle and the harmonic wave governing system by industrial local network, and this system has low pressure silent oscillation dynamic passive compensation and low pressure harmonic wave control function, realizes by low pressure dynamic passive compensation and harmonic suppression apparatus.
See Fig. 2, electric quantity detection apparatus comprises control unit, measured chip, watchdog circuit, clock circuit, temperature element, LCD screen, and control unit is connected with measured chip, watchdog circuit, clock circuit, temperature element, LCD screen respectively.Control unit also is connected with button and buzzer, and button has input function; Buzzer has warning function.
See Fig. 3, dsm controller comprises microprocessor CPU 1, microprocessor CPU 2, reset circuit, crystal oscillating circuit, relay, SPC3 chip, power module, microprocessor CPU 1 is connected with reset circuit, contactless relay output respectively, and microprocessor CPU 1 also connects the 20MHz crystal oscillating circuit; Microprocessor CPU 2 is connected with 20MHz crystal oscillating circuit, SPC3 chip, high speed photo coupling respectively; Microprocessor CPU 1 all is connected with the bus driver module with microprocessor CPU 2.
See Fig. 4, low pressure dynamic passive compensation and harmonic suppression apparatus, comprise that testing circuit, control circuit, harmonic wave suppress and reactive power compensation circuit, detect harmonic current and the reactive power that nonlinear load produces in real time by testing circuit, signal is sent into control circuit and is handled, and suppress and reactive power compensation circuit sends drive signal to harmonic wave with pulse-width modulation (PWM) form, drive the IGBT power model, produce the offset current opposite and inject network system with harmonic current equal and opposite in direction, direction, reach the inhibition harmonic wave, the purpose of compensating power.
Harmonic wave suppresses and reactive power compensation circuit is the current transformer that full-control type or half control type switching device are formed, and is non-four-quadrant two level structures or four-quadrant two level architecture.
See Fig. 5, current transformer is non-four-quadrant two level structures, the rectification side is the non-four-quadrant construction of diode D1-1, D2-1, D3-1, D4-1, D5-1, D6-1 composition, capacitor C 1-1 forms the DC filtering circuit, and the inversion side is two level export structures of full-control type power semiconductor switch V1-1, V2-1, V3-1, V4-1, V5-1, V6-1 composition.
See Fig. 6, current transformer is four-quadrant two level structures, the rectification side is the four-quadrant construction of full-control type power semiconductor switch V1-2, V2-2, V3-2, V4-2, V5-2, V6-2 composition, and capacitor C 1-2 forms the DC filtering circuit, the inversion side is two level export structures of full-control type power semiconductor switch V7-2, V8-2, V9-2, V10-2, V11-2, V12-2 composition.
Claims (6)
1. Fieldbus Based electric energy quality optimizing device, it is characterized in that, comprise electric energy quality optimizing controller, electric quantity detection apparatus, dsm controller, idle harmonic wave control system, electric quantity detection apparatus is connected with using electricity system respectively with dsm controller, electric quantity detection apparatus and dsm controller all have Profibus-DP and Modbus fieldbus function, communicate by industrial local network and electric energy quality optimizing controller; The electric energy quality optimizing controller also communicates by industrial local network and idle harmonic wave control system.
2. Fieldbus Based electric energy quality optimizing device according to claim 1, it is characterized in that, the electric energy quality optimizing controller also is connected to the GPRS wireless telecommunication system, and the information of electric energy quality optimizing controller is sent to remote monitoring system with wireless mode.
3. Fieldbus Based electric energy quality optimizing device according to claim 1 and 2, it is characterized in that, electric quantity detection apparatus comprises control unit, measured chip, watchdog circuit, clock circuit, temperature element, LCD screen, control unit is connected with measured chip, watchdog circuit, clock circuit, temperature element, LCD screen respectively, control unit also is connected with button and buzzer, and button has input function; Buzzer has warning function.
4. Fieldbus Based electric energy quality optimizing device according to claim 1 and 2, it is characterized in that, dsm controller comprises microprocessor CPU 1, microprocessor CPU 2, reset circuit, crystal oscillating circuit, relay, SPC3 chip, power module, microprocessor CPU 1 is connected with reset circuit, contactless relay output respectively, and microprocessor CPU 1 also connects the 20MHz crystal oscillating circuit; Microprocessor CPU 2 is connected with 20MHz crystal oscillating circuit, SPC3 chip, high speed photo coupling respectively; Microprocessor CPU 1 all is connected with the bus driver module with microprocessor CPU 2.
5. Fieldbus Based electric energy quality optimizing device according to claim 1, it is characterized in that, low pressure dynamic passive compensation and harmonic suppression apparatus comprise that testing circuit, control circuit, harmonic wave suppress and reactive power compensation circuit, be used for detecting in real time the harmonic current that nonlinear load produces and the testing circuit of reactive power and be connected to electrical network, be connected with control circuit, harmonic wave inhibition and reactive power compensation circuit successively, harmonic wave suppresses and the other end of reactive power compensation circuit is connected with the input of nonlinear load again.
6. Fieldbus Based electric energy quality optimizing device according to claim 5, it is characterized in that, harmonic wave suppresses and reactive power compensation circuit is the current transformer that full-control type or half control type switching device are formed, and is non-four-quadrant two level structures or four-quadrant two level architecture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020173513XU CN201656476U (en) | 2010-04-29 | 2010-04-29 | Electricity energy quality optimizing device based on field bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020173513XU CN201656476U (en) | 2010-04-29 | 2010-04-29 | Electricity energy quality optimizing device based on field bus |
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| CN201656476U true CN201656476U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020173513XU Expired - Lifetime CN201656476U (en) | 2010-04-29 | 2010-04-29 | Electricity energy quality optimizing device based on field bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426438A (en) * | 2011-01-14 | 2012-04-25 | 新奥科技发展有限公司 | Universal energy network system based on universal energy gateway and construction method thereof |
-
2010
- 2010-04-29 CN CN201020173513XU patent/CN201656476U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426438A (en) * | 2011-01-14 | 2012-04-25 | 新奥科技发展有限公司 | Universal energy network system based on universal energy gateway and construction method thereof |
| CN102426438B (en) * | 2011-01-14 | 2013-09-18 | 新奥科技发展有限公司 | Universal energy network system based on universal energy gateway and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |