CN105552933A - Electricity grid power compensation control device - Google Patents
Electricity grid power compensation control device Download PDFInfo
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- CN105552933A CN105552933A CN201610092531.7A CN201610092531A CN105552933A CN 105552933 A CN105552933 A CN 105552933A CN 201610092531 A CN201610092531 A CN 201610092531A CN 105552933 A CN105552933 A CN 105552933A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- Power Engineering (AREA)
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Abstract
The invention discloses an electricity grid power compensation control device, comprising a controller, an inverter, a driver module, a current sensor A, a signal conditioning circuit and a zero-cross detection circuit, wherein the controller is connected with the zero-cross detection circuit, a storage module the signal conditioning circuit and the inverter respectively; the signal conditioning circuit is also connected with a voltage sensor, an isolation module and a current sensor B respectively; the isolation module is also connected with the current sensor A; and the voltage sensor is also connected with an energy-storage capacitor. According to the electricity grid power compensation control device, there is no limitation on electric wires, loads can be randomly installed within a wireless power supply acceptable range, high-order current harmonics in system operation can be filtered out, and the total harmonic distortion of the transmission grid is reduced, thus the purpose of load power compensation is achieved. The electricity grid power compensation control device can be applied to homes, vehicles, scenes or landscape LED illumination, and is effectively improved in flexibility of illumination distribution, economical in electric energy, reduced in light pollution, improved in quality of electric energy, and wide in application prospect.
Description
Technical field
The present invention relates to a kind of control device, specifically a kind of electric power network power back-off control device.
Background technology
At present, most of electric equipment in electrical network is all the load belonging to perception, such as asynchronous machine, transformer etc., while they consume active power in running, also will from electrical network absorbing reactive power, the reactive power absorbed can cause the electric current in circuit to increase, and causes the waste that electric energy is unnecessary, reduces power factor and quality of voltage.Parallel capacitor device is arranged on the flowing that just can reduce reactive power in electrical network, thus the transmission losses reducing transmission line and cause because of extra conveying reactive power.The type of drive of more existing employing Controls is unreliable, and precise control is not high, and system configuration is complicated, and connect up more, the scope of application is little.
Summary of the invention
The object of the present invention is to provide a kind of electric power network power back-off control device improving the quality of power supply, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of electric power network power back-off control device, comprise controller, inverter, driver module, current sensor A, signal conditioning circuit and zero cross detection circuit, described controller connects zero cross detection circuit respectively, memory module, signal conditioning circuit and inverter, signal conditioning circuit also connects voltage sensor, isolation module and current sensor B, isolation module also connects current sensor A, voltage sensor also connects storage capacitor, described inverter also connects storage capacitor and current sensor B respectively, current sensor B also connects electrical network, electrical network also connects zero cross detection circuit and current sensor A respectively, current sensor A also connects driver module.
Described driver module comprises resistance R1, electric capacity C1, diode D1, triode Q1, diode ZD1, transformer T and LED 1, it is characterized in that, described diode D1 positive pole connects current sensor A, diode D1 negative pole connects electric capacity C1 respectively, resistance R2, electric capacity C4, resistance R5 and transformer T coil L1, the transformer T coil L1 other end connects diode D5 positive pole and triode Q1 collector electrode respectively, diode D5 negative pole is the contact resistance R5 other end and the electric capacity C4 other end respectively, triode Q1 base stage is the contact resistance R2 other end respectively, triode Q2 collector electrode and electric capacity C3, triode Q1 emitter is contact resistance R1 and resistance R3 respectively, the resistance R3 other end connects diode ZD1 positive pole and triode Q2 base stage respectively, triode Q2 emitter connects the electric capacity C1 other end respectively, the resistance R1 other end, diode D6 positive pole and electric capacity C2, the electric capacity C2 other end is connection transformer T coil L3 and diode ZD1 negative pole respectively, the transformer T coil L3 other end connects diode D6 negative pole and resistance R4 respectively, the resistance R4 other end connects the electric capacity C3 other end, described transformer T coil L2 one end connects electric capacity C5 respectively, resistance R6 and load one end, resistance R6 other end connecting luminous diode LED1 positive pole, LED 1 negative pole connects the electric capacity C5 other end respectively, the load other end and diode D7 positive pole.
As the further scheme of the present invention: described controller adopts TMS320F2812.
As the further scheme of the present invention: described signal conditioning circuit comprises amplifying circuit, rectification circuit, filter circuit, clamper absorbing circuit and frequency overlapped-resistable filter circuit.
As the present invention's further scheme: described voltage sensor is Hall voltage transducer.
Compared with prior art, the invention has the beneficial effects as follows: electric power network power back-off control device of the present invention does not have the restriction of electric wire, load can accept to install arbitrarily in scope at wireless power, and can filtering appts running in high order current harmonics, reduce the total harmonic distortion of power transmission network, thus reach the object compensated to bearing power, the present invention can be applied in household, vehicle-mounted, scene or view LED illumination, effectively improve the flexibility of illumination profile, saves energy and reduction light pollution, and improve the quality of power supply, have a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of electric power network power back-off control device;
Fig. 2 is the circuit diagram of driver module in electric power network power back-off control device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 ~ 2, in the embodiment of the present invention, a kind of electric power network power back-off control device, comprise controller, inverter, driver module, current sensor A, signal conditioning circuit and zero cross detection circuit, described controller connects zero cross detection circuit respectively, memory module, signal conditioning circuit and inverter, signal conditioning circuit also connects voltage sensor, isolation module and current sensor B, isolation module also connects current sensor A, voltage sensor also connects storage capacitor, described inverter also connects storage capacitor and current sensor B respectively, current sensor B also connects electrical network, electrical network also connects zero cross detection circuit and current sensor A respectively, current sensor A also connects driver module.
Described driver module comprises resistance R1, electric capacity C1, diode D1, triode Q1, diode ZD1, transformer T and LED 1, it is characterized in that, described diode D1 positive pole connects current sensor A, diode D1 negative pole connects electric capacity C1 respectively, resistance R2, electric capacity C4, resistance R5 and transformer T coil L1, the transformer T coil L1 other end connects diode D5 positive pole and triode Q1 collector electrode respectively, diode D5 negative pole is the contact resistance R5 other end and the electric capacity C4 other end respectively, triode Q1 base stage is the contact resistance R2 other end respectively, triode Q2 collector electrode and electric capacity C3, triode Q1 emitter is contact resistance R1 and resistance R3 respectively, the resistance R3 other end connects diode ZD1 positive pole and triode Q2 base stage respectively, triode Q2 emitter connects the electric capacity C1 other end respectively, the resistance R1 other end, diode D6 positive pole and electric capacity C2, the electric capacity C2 other end is connection transformer T coil L3 and diode ZD1 negative pole respectively, the transformer T coil L3 other end connects diode D6 negative pole and resistance R4 respectively, the resistance R4 other end connects the electric capacity C3 other end, described transformer T coil L2 one end connects electric capacity C5 respectively, resistance R6 and load one end, resistance R6 other end connecting luminous diode LED1 positive pole, LED 1 negative pole connects the electric capacity C5 other end respectively, the load other end and diode D7 positive pole, described controller adopts TMS320F2812, described signal conditioning circuit comprises amplifying circuit, rectification circuit, filter circuit, clamper absorbing circuit and frequency overlapped-resistable filter circuit, described voltage sensor is Hall voltage transducer.
Operation principle of the present invention is: refer to Fig. 1 ~ 2, the digital signal processor of MS320F2812 model is as controller, modulate circuit comprises amplifying circuit, rectification circuit and frequency overlapped-resistable filter circuit, current sensor A sampling load end three-phase current, harmonic current extraction algorithm and control algolithm process is done sent into the A/D collection of controller via controller inside by signal conditioning circuit after, and drive inverter to do corresponding counteracting to harmonic current, feedback regulation is done with the offset current that current sensor B sampling exports, inverter DC bus-bar voltage gathers through the A/D of Hall voltage sensor transformation supply controller inside, control its DC capacitor voltage to stablize, the zero crossing of the three-phase voltage signal that electrical network produces after zero cross detection circuit is as zero cross fired signal, as each periodic software process clearing and initial signal.
Current sensor A provides operating current to after resistance R2 triode Q1 base stage, after Q1 work, its collector electrode is at transformer T coil L1 generation current, thus make transformer T coil L3 and L2 produce induced voltage, wherein the output of transformer T coil L2 carries out rectifying and wave-filtering by diode D7 and electric capacity C5, last powering load.
Transformer T coil L3 and electric capacity C3, resistance R4 form the regenerative circuit of triode Q1, allow Q1 be in the higher-order of oscillation do not cutoff transformer T coil L1 switch and power, when load impedance change output voltage is raised time, transformer T coil L3, diode ZD1 sampling rate comparatively make triode Q2 conducting, then Q base current reduces, and collector current also reduces, thus circuit load diminishes, load place output voltage reduces, and reaches pressure stabilization function.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1. an electric power network power back-off control device, comprise controller, inverter, driver module, current sensor A, signal conditioning circuit and zero cross detection circuit, it is characterized in that, described controller connects zero cross detection circuit respectively, memory module, signal conditioning circuit and inverter, signal conditioning circuit also connects voltage sensor, isolation module and current sensor B, isolation module also connects current sensor A, voltage sensor also connects storage capacitor, described inverter also connects storage capacitor and current sensor B respectively, current sensor B also connects electrical network, electrical network also connects zero cross detection circuit and current sensor A respectively, current sensor A also connects driver module,
Described driver module comprises resistance R1, electric capacity C1, diode D1, triode Q1, diode ZD1, transformer T and LED 1, it is characterized in that, described diode D1 positive pole connects current sensor A, diode D1 negative pole connects electric capacity C1 respectively, resistance R2, electric capacity C4, resistance R5 and transformer T coil L1, the transformer T coil L1 other end connects diode D5 positive pole and triode Q1 collector electrode respectively, diode D5 negative pole is the contact resistance R5 other end and the electric capacity C4 other end respectively, triode Q1 base stage is the contact resistance R2 other end respectively, triode Q2 collector electrode and electric capacity C3, triode Q1 emitter is contact resistance R1 and resistance R3 respectively, the resistance R3 other end connects diode ZD1 positive pole and triode Q2 base stage respectively, triode Q2 emitter connects the electric capacity C1 other end respectively, the resistance R1 other end, diode D6 positive pole and electric capacity C2, the electric capacity C2 other end is connection transformer T coil L3 and diode ZD1 negative pole respectively, the transformer T coil L3 other end connects diode D6 negative pole and resistance R4 respectively, the resistance R4 other end connects the electric capacity C3 other end, described transformer T coil L2 one end connects electric capacity C5 respectively, resistance R6 and load one end, resistance R6 other end connecting luminous diode LED1 positive pole, LED 1 negative pole connects the electric capacity C5 other end respectively, the load other end and diode D7 positive pole.
2. electric power network power back-off control device according to claim 1, is characterized in that, described controller adopts TMS320F2812.
3. electric power network power back-off control device according to claim 1, is characterized in that, described signal conditioning circuit comprises amplifying circuit, rectification circuit, filter circuit, clamper absorbing circuit and frequency overlapped-resistable filter circuit.
4. electric power network power back-off control device according to claim 1, is characterized in that, described voltage sensor is Hall voltage transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092531.7A CN105552933A (en) | 2016-02-19 | 2016-02-19 | Electricity grid power compensation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092531.7A CN105552933A (en) | 2016-02-19 | 2016-02-19 | Electricity grid power compensation control device |
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| CN105552933A true CN105552933A (en) | 2016-05-04 |
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| CN201610092531.7A Pending CN105552933A (en) | 2016-02-19 | 2016-02-19 | Electricity grid power compensation control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273323A (en) * | 2018-11-23 | 2019-01-25 | 广州市新舞台灯光设备有限公司 | Relay efficiency compensation circuit and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201726135U (en) * | 2010-07-12 | 2011-01-26 | 山东能发实业有限公司 | Active filtering device |
| CN204597481U (en) * | 2015-05-22 | 2015-08-26 | 姚志勇 | A kind of Harmonic-wave compensation system |
| CN204965320U (en) * | 2015-08-20 | 2016-01-13 | 天津网赢科技有限公司 | Computer USB power supply circuit |
-
2016
- 2016-02-19 CN CN201610092531.7A patent/CN105552933A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201726135U (en) * | 2010-07-12 | 2011-01-26 | 山东能发实业有限公司 | Active filtering device |
| CN204597481U (en) * | 2015-05-22 | 2015-08-26 | 姚志勇 | A kind of Harmonic-wave compensation system |
| CN204965320U (en) * | 2015-08-20 | 2016-01-13 | 天津网赢科技有限公司 | Computer USB power supply circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273323A (en) * | 2018-11-23 | 2019-01-25 | 广州市新舞台灯光设备有限公司 | Relay efficiency compensation circuit and system |
| CN109273323B (en) * | 2018-11-23 | 2024-02-20 | 广州市新舞台灯光设备有限公司 | Relay efficiency compensation circuit and system |
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Application publication date: 20160504 |
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