CN201563274U - Digital processing controlled energy saving device for illumination used in active electric filtering - Google Patents
Digital processing controlled energy saving device for illumination used in active electric filtering Download PDFInfo
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- CN201563274U CN201563274U CN2009202970327U CN200920297032U CN201563274U CN 201563274 U CN201563274 U CN 201563274U CN 2009202970327 U CN2009202970327 U CN 2009202970327U CN 200920297032 U CN200920297032 U CN 200920297032U CN 201563274 U CN201563274 U CN 201563274U
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Abstract
The utility model relates to a digital processing controlled energy saving device for illumination used in active electric filtering, wherein a digital processing controlled circuit used in active electric filtering is mounted onto the three-phase input circuit of the electromagnetic transforming controlling circuit. The digital processing chip DSP instructs the electric power contactor, the by-pass contactor and the control contactor to be turned on and off, and regulates the output voltage of the electromagnetic transformer, in order to compute the stabilization and balance of the voltage, and realize the function of voltage regulating. The digital processing chip DSP processes the detected nonlinear load current, voltage and the harmonic signal, an isolated driving circuit, a PWM driving circuit, a filtering driving and protecting circuit receive the instruction signal of the harmonic compensation current from the digital processing chip DSP, and the compensation current is obtained after amplification. The compensation current has equal amplitude and reverse phase with the harmonic wave to be compensated in the load current and the passive current, can counteract therewith, the expected grid current in sine wave with the same phase with the voltage is finally obtained, so that the object of suppressing the harmonic and compensating passive power is achieved.
Description
Technical field
The utility model relates to a kind of energy saving device for lighting, refers to a kind of active power filtering digital processing control energy saving device for lighting especially.
Background technology
Because the extensive application of nonlinear-load causes producing a large amount of high order harmonic components in electric power system, serious distortion can take place in the voltage and current waveform of electric power system, thereby brings very big " electric network pollution " to electric power system.Interruption in short-term when particularly user's internal short-circuit and switching manipulation, transformer or capacitor group switching all can cause the electrical energy power quality disturbance problem.This will directly cause the task performance of load to descend, and strengthen the ineffective power consumption of circuit, in the past not only influence the life-span of line load for a long time, and cause the useless of a large amount of electric energy to expend.
At present, be used for the battery saving arrangement of illuminating engineerings such as street lamp, night scene light, adopt the electromagnetic voltage adjusting control technology usually, to realize energy-conservation purpose.This technical pattern is simple, implements easily, and have certain energy-saving effect, but it exists techno-absence: electricity-saving function is single, and it is by adjusting the voltage swing of circuit, in the hope of realizing energy-conservation purpose.Show powerlessly to a large amount of high order harmonic component that produces in the circuit, the wave distortion of voltage and current, can not carry out the compensation of filtering and line waveform distortion high order harmonic component; Energy-saving effect is poor; Disturbed easily; In control transformation, also can cause interference to electrical network; Can't real-time remote monitoring.
The active power filtering technology, its basic functional principle is: the voltage and current that detects target compensation in real time, calculate offset current through signal processor sampling computing, draw offset current, the humorous reactive current that involves that will compensate in offset current and the load current, equal and opposite in direction, phase place be opposite, cancel out each other, finally obtain the power network current expected, power network current is become and the synchronous sine wave of voltage, thereby reach the inhibition harmonic wave, the purpose of compensating reactive power.Yet it but can not adjust the voltage swing of circuit, realizes energy-conservation purpose in the hope of the adjustment by voltage.
Summary of the invention
The purpose of this utility model is that a kind of active power filtering digital processing control energy saving device for lighting will be provided, not only adjust line voltage distribution by electromagnetism transformation control circuit, can pass through active power filtering digital processing control circuit again, suppress harmonic wave, compensating reactive power, by message digit control system control electromagnetism transformation control circuit, to reaching energy-conservation purpose.
For realizing described purpose, adopt following technical scheme: a kind of active power filtering digital processing control energy saving device for lighting that the utility model provides, comprise electromagnetism transformation control circuit, active power filtering digital processing control circuit, electromagnetism transformation control circuit includes electromagnetic transformers, power contactor, bypass contactor, control contactor; Active power filtering digital processing control circuit comprises, digital processing chip DSP, harmonic signal sampling processing circuit CAP, voltage sampling circuit, current transformer, data processing circuit, isolated drive circuit, PWM drive circuit, filtering driving and protective circuit, contactor drive circuit, memory, communication interface.On the three-phase input circuit of electromagnetism transformation control circuit, attaching active power filtering digital processing control circuit; Between digital processing chip DSP and electromagnetic transformers, power contactor, bypass contactor, control contactor, be connected with contactor drive circuit; On the three-phase input circuit of described electromagnetism transformation control circuit, current transformer is installed, the nonlinear load current signal with detecting through data processing circuit, is input to the respective input of digital processing chip DSP; On the three-phase input circuit of electromagnetism transformation control circuit, be connected in parallel to voltage sampling circuit, with the voltage signal that detects, be input to the respective input of digital processing chip DSP; The input of harmonic signal sampling processing circuit CAP is connected with at least one being in parallel on the three-phase input circuit of electromagnetism transformation control circuit, and with the harmonic signal that detects, is input to the respective input of digital processing chip DSP; The signal of digital processing chip DSP is successively through isolated drive circuit, PWM drive circuit, filtering driving and protective circuit, and respectively by three outputs of filtering driving and protective circuit, parallel connection is input on the electromagnetism transformation control circuit three-phase input circuit.In described electromagnetism transformation control circuit, the unlatching of power contactor and bypass contactor or close, mode each other on the contrary links.Another output of filtering driving and protective circuit is connected with the respective input of digital processing chip DSP.
Described memory is that the IIC serial communication interface is connected with the IIC communication interface of the chip DSP of numeral place.
The input of described communication interface is connected with input with the corresponding output end of digital processing chip DSP respectively with output.
The utility model is the energy saver at street lamp, nightscape lighting engineering design.On electromagnetism transformation control circuit, R, S, T are the input of alternating current, and W, V, U are the economize on electricity output.Shunt active power filtering figure control and treatment circuit on the three-phase input circuit of electromagnetism transformation control circuit.By current transformer,,, be input to digital processing chip DSP on the one hand through data processing circuit with detected nonlinear load current signal; Detect threephase load voltage in real time by voltage sampling circuit on the one hand, pass through the harmonic wave deal of the real-time detection line of harmonic wave sample circuit simultaneously.
By digital processing chip DSP detected voltage and current signal is carried out computing, pass through contactor drive circuit, instruction power contactor, bypass contactor and control contactor turn on and off, carry out electromagnetic voltage adjusting by electromagnetic transformers, to regulate the output voltage of electromagnetic transformers, try to achieve the stable and balanced of voltage, realize pressure regulating energy-saving; Isolated drive circuit, PWM drive circuit, filtering driving and protective circuit (IGBT module); the command signal of the reception harmonic compensation current that computing draws from digital processing chip DSP; this signal is through isolated drive circuit, again after the PWM drive circuit amplifies; draw offset current; make filtering driving and protective circuit (IGBT module) work, follow the variation of instruction current with the control main circuit current.To compensate in offset current and the load current humorous involve reactive current equal and opposite in direction, phase place opposite, cancel out each other, finally obtain the power network current expected, power network current is become and the synchronous sine wave of voltage, thereby reach the inhibition harmonic wave, the purpose of compensating reactive power.
The utility model can be adjusted line voltage distribution by electromagnetism transformation control circuit, realizes energy-conservationly, can pass through active power filtering digital processing control circuit again, and inhibition harmonic wave, compensating reactive power are further realized energy-conservation.More traditional simple dependence is adjusted voltage or is relied on active power filtering merely, and harmonic wave suppresses, reactive power compensation technology is compared, and energy-saving efficiency is improved significantly.
Description of drawings
Fig. 1 is the utility model circuit block diagram.
Fig. 2 is the utility model electromagnetism transformation control circuit and filtering driving and protective circuit (IGBT module) physical circuit figure.
Embodiment
With reference to Fig. 1.The active power filtering digital processing control energy saving device for lighting that the utility model provides, comprise electromagnetism transformation control circuit, active power filtering digital processing control circuit, electromagnetism transformation control circuit includes electromagnetic transformers 18, power contactor 16, bypass contactor 17, control contactor 19,20,21; Active power filtering digital processing control circuit comprises: digital processing chip DSP 1, harmonic wave sample circuit (CAP) 2, voltage sampling circuit 4, current transformer 5, data processing circuit 6, isolated drive circuit 7, PWM drive circuit 8, filtering driving and protective circuit 9, contactor drive circuit 3, memory 22, communication interface 10.On the three-phase input circuit of electromagnetism transformation control circuit, attaching has active power filtering digital processing control circuit; Between digital processing chip DSP 1 and electromagnetic transformers 18, power contactor 16, bypass contactor 17, control contactor 19,20,21, be connected with contactor drive circuit 3, i.e. the input 3 of contactor drive circuit
1Output 1 with digital processing chip DSP
16Connect the output 3 of contactor drive circuit
2, 3
3, 3
4, 3
5, 3
6, be connected with corresponding bypass contactor 17, control contactor 19,20,21, power contactor 16 respectively; On the three-phase input circuit of described electromagnetism transformation control circuit, current transformer 5 is installed, the nonlinear load current signal with detecting through data processing circuit 6, is input to the input 1 of digital processing chip DSP
3On the three-phase input circuit of electromagnetism transformation control circuit, be connected in parallel to voltage sampling circuit 4, with the voltage signal that detects, from the input 4 of voltage sampling circuit
1, 4
2, 4
3Input is from output 4
4Export, and be input to the input 1 of digital processing chip DSP
1The input 2 of harmonic signal sampling processing circuit (CAP) 2
1Be connected with at least one being in parallel on the three-phase input circuit of electromagnetism transformation control circuit, also two-phase is connected in parallel or parallel three phase connects simultaneously, with the harmonic signal that detects, by output 2
2, 2
3Be input to the input 1 of digital processing chip DSP
10, 1
11The signal of digital processing chip DSP is through output 1
4, 1
5, enter the input 7 of isolated drive circuit 7
1, 7
2, through the output 7 of isolated drive circuit 7
3Enter the input 8 of PWM drive circuit 8
1, again after pulsewidth is adjusted, by the output 8 of PWM drive circuit 8
2Enter the input 9 of filtering driving and protective circuit 9
5, and three outputs 9 by filtering driving and protective circuit respectively
1, 9
2, 9
3, parallel connection is input on the electromagnetism transformation control circuit three-phase input circuit.In described electromagnetism transformation control circuit, the unlatching of power contactor and bypass contactor or close, mode each other on the contrary links.Another output 9 of filtering driving and protective circuit
4Respective input 1 with digital processing chip DSP
2Connect.The output 22 of described memory 22
1With input 22
2Respectively with the input 1 of corresponding digital process chip DSP
7With output 1
6Connect, promptly memory is that the IIC serial communication interface is connected with the IIC communication interface of the chip DSP of numeral place.The input 10 of described communication interface
1With output 10
2Respectively with the corresponding output end 1 of digital processing chip DSP
14With input 1
15Connect.The output 1 of digital processing chip DSP
13Be connected with LED sound and light alarm indication 11.Digital processing chip DSP passes through port one
12LCD12 is connected with keyboard.Digital processing chip DSP output 1
9Be connected with fan drive circuit 13.The input 1 of digital processing chip DSP
8Be connected with clock generator 14.
With reference to Fig. 2.Adopt high stable on the electromagnetism transformation control circuit, high-precision power switch, multiple superpressure, overcurrent, short circuit, overheat protection measure.Power contactor on it (KM1) 16, after the connection, bypass contactor (KM2) 17 turn-offs, alternating current is from the input of R, S, T, for electromagnetism transformation control circuit and active power filtering digital processing control circuit provide power supply, after pressure regulation, signals collecting, signal processing, harmonic wave inhibition, reactive power compensation, enter the illuminalive power-supply circuit from economize on electricity output W, V, U.The bypass contactor (KM2) 17 of electromagnetism transformation control circuit is connected, and power contactor (KM1) 16 turn-offs, and expression electromagnetism transformation control circuit and active power filtering digital processing control circuit recover original non-electricity-saving power supplying mode.Digital processing chip DSP1, mainly be that current transformer 5 (RA/SA/TA) and voltage sampling circuit 4 from the input circuit of electromagnetism transformation control circuit, harmonic wave sample circuit 2 are gathered electric current and the voltage signal and the harmonic signal of coming, handle and instruct its major function: to harmonic signal, the voltage of collection, the current signal gathered from current transformer 5, voltage sampling circuit 4 and the harmonic wave sample circuit 2 of circuit analyze, computing, processing, storage, serial communication.The filtering signal that computing produces carries out the pulse-width modulation shaping again through isolated drive circuit 7 by PWM drive circuit 8.Among the figure, filtering driving and protective circuit 9 are the anti-harmonic wave output circuits of the filtering of parallel-connection type active power filtering.Mainly be connected into three groups by per two IGBT pipes, each IGBT pipe diode in parallel punctures the IGBT pipe to prevent negative pressure, and circuit is played a protective role.IGBT pipe mainly is that PWM pulse-width modulation filtering signal is amplified, and is the input circuit of the electromagnetism transformation control circuit signal that affords redress.Isolated drive circuit 7 and PWM drive circuit 8, the isolation that is mainly used in pwm signal is exported.
Claims (5)
1. energy saving device for lighting is controlled in an active power filtering digital processing, comprise electromagnetism transformation control circuit, active power filtering digital processing control circuit, electromagnetism transformation control circuit includes electromagnetic transformers, power contactor, bypass contactor, control contactor; Active power filtering digital processing control circuit comprises, digital processing chip DSP, harmonic wave sample circuit CAP, voltage sampling circuit, current transformer, current signal treatment circuit, isolated drive circuit, PWM drive circuit, filtering driving and protective circuit, contactor drive circuit, memory, communication interface, it is characterized in that: on the three-phase input circuit of electromagnetism transformation control circuit, attaching active power filtering digital processing control circuit;
Between digital processing chip DSP and electromagnetic transformers, power contactor, bypass contactor, control contactor, be connected with contactor drive circuit;
On the three-phase input circuit of described electromagnetism transformation control circuit, current transformer is installed, the nonlinear load current signal with detecting through the current signal treatment circuit, is input to the respective input of digital processing chip DSP;
On the three-phase input circuit of electromagnetism transformation control circuit, be connected in parallel to voltage sampling circuit, with the voltage signal that detects, be input to the respective input of digital processing chip DSP;
At least one being in parallel on the three-phase input circuit of the input of harmonic wave sample circuit CAP and electromagnetism transformation control circuit is connected, and with the harmonic signal that detects, is input to the respective input of digital processing chip DSP;
The signal of digital processing chip DSP is successively through isolated drive circuit, PWM drive circuit, filtering driving and protective circuit, and respectively by three outputs of filtering driving and protective circuit, parallel connection is input on the electromagnetism transformation control circuit three-phase input circuit.
2. active power filtering digital processing as claimed in claim 1 control energy saving device for lighting is characterized in that: in described electromagnetism transformation control circuit, and the unlatching of power contactor and bypass contactor or close, opposite way each other.
3. active power filtering digital processing control energy saving device for lighting as claimed in claim 1, it is characterized in that: another output of filtering driving and protective circuit is connected with the respective input of digital processing chip DSP.
4. active power filtering digital processing control energy saving device for lighting as claimed in claim 1, it is characterized in that: described memory is that the IIC serial communication interface is connected with the IIC communication interface of digital processing chip DSP.
5. active power filtering digital processing control energy saving device for lighting as claimed in claim 1, it is characterized in that: the input of described communication interface is connected with input with the corresponding output end of digital processing chip DSP respectively with output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970327U CN201563274U (en) | 2009-12-17 | 2009-12-17 | Digital processing controlled energy saving device for illumination used in active electric filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970327U CN201563274U (en) | 2009-12-17 | 2009-12-17 | Digital processing controlled energy saving device for illumination used in active electric filtering |
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| Publication Number | Publication Date |
|---|---|
| CN201563274U true CN201563274U (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202970327U Expired - Fee Related CN201563274U (en) | 2009-12-17 | 2009-12-17 | Digital processing controlled energy saving device for illumination used in active electric filtering |
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| CN (1) | CN201563274U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533726A (en) * | 2013-11-08 | 2014-01-22 | 四川鸿智途源科技有限公司 | Intelligent lighting power saver with function of harmonic suppression |
| CN106953325A (en) * | 2016-03-07 | 2017-07-14 | 浙江涌原新能科技股份有限公司 | It is a kind of to be used for the battery saving arrangement that dynamic filters harmonic wave |
| CN110971105A (en) * | 2019-12-06 | 2020-04-07 | 上海敬道电气有限公司 | Intelligent power saving device and power saving management system |
| CN114362569A (en) * | 2021-11-10 | 2022-04-15 | 四川旷谷信息工程有限公司 | Motor train unit ground power supply sharing direct-current bus and control method thereof |
-
2009
- 2009-12-17 CN CN2009202970327U patent/CN201563274U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533726A (en) * | 2013-11-08 | 2014-01-22 | 四川鸿智途源科技有限公司 | Intelligent lighting power saver with function of harmonic suppression |
| CN106953325A (en) * | 2016-03-07 | 2017-07-14 | 浙江涌原新能科技股份有限公司 | It is a kind of to be used for the battery saving arrangement that dynamic filters harmonic wave |
| CN106953325B (en) * | 2016-03-07 | 2019-12-13 | 浙江涌原新能科技股份有限公司 | Power saving device for dynamically filtering harmonic waves |
| CN110971105A (en) * | 2019-12-06 | 2020-04-07 | 上海敬道电气有限公司 | Intelligent power saving device and power saving management system |
| CN114362569A (en) * | 2021-11-10 | 2022-04-15 | 四川旷谷信息工程有限公司 | Motor train unit ground power supply sharing direct-current bus and control method thereof |
| CN114362569B (en) * | 2021-11-10 | 2023-08-15 | 四川旷谷信息工程有限公司 | EMUs ground power supply sharing direct current bus and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20121217 |