CN201562968U - Device based on active power filter controlled by digital signal processing chip - Google Patents
Device based on active power filter controlled by digital signal processing chip Download PDFInfo
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- CN201562968U CN201562968U CN200920251230XU CN200920251230U CN201562968U CN 201562968 U CN201562968 U CN 201562968U CN 200920251230X U CN200920251230X U CN 200920251230XU CN 200920251230 U CN200920251230 U CN 200920251230U CN 201562968 U CN201562968 U CN 201562968U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 230000009993 protective function Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
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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
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- 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
- Y02E40/20—Active power filtering [APF]
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Abstract
The utility model relates to a device based on an active power filter controlled by a digital signal processing chip, which is composed of a control panel, a central data processing circuit, a photoelectric switching circuit, an optical fiber communication device, a driving circuit, five level power circuits and a current sampling circuit. The utility model increases the speed and the precision of control, improves a problem that traditional pointing DSP programming is complicate, and enables the whole control device to have good adjustment and reliability; the device improves problems of weak signal and poor interfere resistance caused by a traditional analog signal transmitting type; the device increases device volume and compensating voltage, and improves the harmonic characteristic of output voltage; and a touching chip of driving pulse has the advantages of strong driving capability and convenient control, and has an over voltage and over current protective function.
Description
(1) technical field:
The utility model belongs to the electric device Active Power Filter-APF, and (Active Power Filter, APF) control technology field are a kind of based on new digital signal processor (digital signalprocessor, Active Power Filter-APF control device DSP).
(2) background technology:
Active Power Filter-APF is a kind of power electronics compensation arrangement, is connected between power supply and the important load, has good dynamic property and harmonic characterisitic.Active Power Filter-APF can be regarded a controlled current source as, its basic functional principle is that the contained humorous reactive current that involves in the device is detected, and produce offset current with 180 ° of its equal and opposite in directions, phase difference, inject transmission line, the counteracting humorous reactive current that involves wherein.Five-level active power filter is made of five level convertor assemblys, filter inductance and sample circuit and control device usually, its control device many by fixed point type DSP as the control core, one of whole device, secondary side control signal and feedback signal adopt the mode of analog signal transmission more, and there are shortcomings such as hardware circuit complexity, debug difficulties, poor anti jamming capability and programming complexity in control device.Because it is very high that high-power circuit requires trigger impulse, traditional control device all is difficult to satisfy the requirement of modern power circuit on control precision still is control rate.Along with the fast development of digital Control Technology and power industry require more and more highlyer to the quality of power supply, the requirement of control device is also improved constantly, traditional control device has been difficult to satisfy the requirement of modern industry to control performance.
(3) utility model content
The purpose of this utility model is to provide a kind of device of the five-level active power filter based on digital signal processing chip control, it is in conjunction with high performance digital signal processor DSP and CPLD (Complex Programmable Logic Device, CPLD), and the optical-fibre communications device that adopts the advanced person, can overcome the shortcoming of above-mentioned traditional control device preferably, be a kind ofly programme conveniently, speed is fast, antijamming capability is strong, precision is high control device.
Detailed technology scheme of the present utility model: a kind of active power filter device based on digital signal processing chip control is characterized in that it is made up of control panel, central data treatment circuit, photoelectric switching circuit, optical-fibre communications device and drive circuit, five level power circuit and current sampling circuit.Wherein, said central data treatment circuit comprises two circuit units of DSP and CPLD; Said control panel is two-way the connection with DSP; Be two-way the connection between said DSP circuit unit and the CPLD circuit unit; The output of said CPLD circuit unit is connected with the input of photoelectric switching circuit; The output of said photoelectric switching circuit is connected with the input of optical-fibre communications device and drive circuit; The output of said optical-fibre communications device and drive circuit is connected with the input of five level power circuit; The output of said five level power circuit is connected with the input of electric device; The input of said current sampling circuit is connected with the output of electric device, and its output is connected with the input of DSP circuit unit.
Above-mentioned said central data treatment circuit by supply unit, crystal oscillating circuit, DSP circuit unit, open into/leave control circuit, man-machine interface-control panel, netting twine and CPLD extended chip to form; Wherein, said supply unit is the supply unit that power supply is provided for each module of central data treatment circuit; The output of said crystal oscillating circuit is connected with the output pin of DSP circuit unit; Said open into/leave control circuit to constitute by sister's circuit of central data treatment circuit, and be two-way with the central data treatment circuit and be connected; Man-machine interface-control panel is two-way according to netting twine with the DSP circuit unit and is connected; Said CPLD extended chip is two-way with the DSP circuit unit and is connected.
Above-mentioned said DSP is TMS320F28335 floating type DSP.
Above-mentioned said optical-fibre communications device and drive circuit mainly comprise the photoelectric conversion unit of communication optical fiber, drive circuit and drive circuit side; The input of the photoelectric conversion unit of said drive circuit side receives the control impuls of being sent by the CPLD extended chip according to communication optical fiber, and its output is connected with the input of drive circuit; Said drive circuit is exported to five level power circuit with the driving pulse of output; Said communication optical fiber contains No. 24 drive circuit optical fiber and 6 tunnel feedback signal Transmission Fibers; Wherein No. 24 drive circuit optical fiber are to be used for 24 tunnel control impuls of CPLD extended chip output are exported to the communication optical fiber of drive circuit, and said 6 tunnel feedback signal Transmission Fibers are the Transmission Fibers that the operating state of drive circuit fed back to CPLD.
Above-mentioned said drive circuit sidelight electricity converting unit comprises that filter capacitor CO1, signal receive optical fiber head OP2521, pull-up resistor RD1, diode D2, discharge resistance R5, capacitor C 4, capacitor C 5, these schmitt trigger 40106 chips; Wherein, said filter capacitor CO1 connects the pin that signal receives optical fiber head OP2521; Said pull-up resistor RD1 is connected with the pin that signal receives optical fiber head OP2521; String receives between optical fiber head OP2521 and this schmitt trigger 40106 chips at signal after said diode D2 and the discharge resistance R5 parallel connection; Said capacitor C 4, capacitor C 5 are connected with these schmitt trigger 40106 pin of chip respectively.
Above-mentioned said drive circuit is made up of the drive circuit that comprises the 2SD315A chip for driving; Wherein the input of chip for driving receives the output signal of these schmitt trigger 40106 chips; The output of said chip for driving is connected with the input of five level power unit.
Above-mentioned said five level power circuit comprise: single-phase 8 the IGBT person in charge, filter inductance L that contain fly-wheel diode
fThe IGBT that 8 of said every phases contain fly-wheel diode is responsible for to be and is connected in series, and the one end is connected to the filter inductance end, and the other end connects together; Said every single-phase 8 IGBT are responsible for and filter inductance L
fConnect, and be connected in series in the electric device.
Superiority of the present utility model and technique effect are: 1, utilize high performance float-point type digital signal processing chip to realize the control of five-level active power filter, improve the speed and the precision of control to a great extent, improved traditional fixed point type dsp program complicated problems, made the The whole control device have good adjusting function and reliability; 2, adopt DSP+CPLD to form control device, hardware circuit is simple, the output trigger impulse is safe and reliable, precision of real time control is high, stability and reliability that can bigger raising device; 3, adopt the optical-fibre communications device, it is weak to have improved the signal that the traditional analog signal transmission form causes, the problem of poor anti jamming capability; 4, adopt the main circuit topological structure of five electrical level power module circuit, can improve installed capacity and bucking voltage, improve the harmonic characterisitic of output voltage as APF; 4, adopt the flip chip of 2SD315A chip for driving, have the defencive function that driving force is strong, control is convenient and have overvoltage, overcurrent as driving pulse; 5, has wide market application prospect.
(4) description of drawings:
Accompanying drawing 1 is the overall structure schematic diagram of the device of the related a kind of Active Power Filter-APF based on digital signal processing chip control of the utility model.
Accompanying drawing 2 is the central data treatment circuit structural representation in the device of the related a kind of Active Power Filter-APF based on digital signal processing chip control of the utility model.
Accompanying drawing 3 is optical-fibre communications circuit and the power driving circuit structural representation in the device of the related a kind of Active Power Filter-APF based on digital signal processing chip control of the utility model.
Wherein, Fig. 3-A is the circuit structure diagram of the photoelectric conversion unit of drive circuit side; Fig. 3-B is the structured flowchart of drive circuit.
Accompanying drawing 4 is the five-level active power filter device circuit in the device of the related a kind of Active Power Filter-APF based on digital signal processing chip control of the utility model.
(5) embodiment:
Embodiment: a kind of device (see figure 1) of the Active Power Filter-APF based on digital signal processing chip control, comprise the electric device that contains current transformer, it is characterized in that it is made up of control panel, central data treatment circuit, photoelectric switching circuit, optical-fibre communications device and drive circuit, three level power circuit and voltage sampling circuit; Wherein, said central data treatment circuit comprises two circuit units of DSP and CPLD; Said control panel is two-way the connection with DSP; Be two-way the connection between said DSP circuit unit and the CPLD circuit unit; The output of said CPLD circuit unit is connected with the input of photoelectric switching circuit; The output of said photoelectric switching circuit is connected with the input of optical-fibre communications device and drive circuit; The output of said optical-fibre communications device and drive circuit is connected with the input of five level power circuit; The output of said five level power circuit is connected with the input of electric device; The input of said current sampling circuit is connected with the output of electric device, and its output is connected with the input of DSP circuit unit.
Above-mentioned said central data treatment circuit (see figure 2) by supply unit, crystal oscillating circuit, TMS320F28335 floating type DSP circuit unit, open into/leave control circuit, man-machine interface-control panel, netting twine and CPLD extended chip to form; Wherein, said supply unit is the supply unit that power supply is provided for each module of central data treatment circuit; The output of said crystal oscillating circuit is connected with the output pin of DSP circuit unit; Said open into/leave control circuit to constitute by sister's circuit of central data treatment circuit, and be two-way with the central data treatment circuit and be connected; Man-machine interface-control panel is two-way according to netting twine with the DSP circuit unit and is connected; Said CPLD extended chip is two-way with the DSP circuit unit and is connected.
Above-mentioned said optical-fibre communications device and drive circuit (see figure 3) mainly comprise the photoelectric conversion unit of communication optical fiber, drive circuit and drive circuit side; The input of the photoelectric conversion unit of said drive circuit side receives the control impuls of being sent by the CPLD extended chip according to communication optical fiber, and its output is connected with the input of drive circuit; Said drive circuit is exported to five level power circuit with the driving pulse of output; Said communication optical fiber contains No. 24 drive circuit optical fiber and 6 tunnel feedback signal Transmission Fibers; Wherein No. 24 drive circuit optical fiber are to be used for 24 tunnel control impuls of CPLD extended chip output are exported to the communication optical fiber of drive circuit, and said 6 tunnel feedback signal Transmission Fibers are the Transmission Fibers that the operating state of drive circuit fed back to CPLD.
Above-mentioned said drive circuit sidelight electricity converting unit (is seen Fig. 3-A) comprise that filter capacitor CO1, signal receive optical fiber head OP2521, pull-up resistor RD1, diode D2, discharge resistance R5, capacitor C 4, capacitor C 5, these schmitt trigger 40106 chips; Wherein, said filter capacitor CO1 connects the pin that signal receives optical fiber head OP2521; Said pull-up resistor RD1 is connected with the pin that signal receives optical fiber head OP2521; String receives between optical fiber head OP2521 and this schmitt trigger 40106 chips at signal after said diode D2 and the discharge resistance R5 parallel connection; Said capacitor C 4, capacitor C 5 are connected with these schmitt trigger 40106 pin of chip respectively.
Above-mentioned said drive circuit (is seen Fig. 3-B) be made up of the drive circuit that comprises the 2SD315A chip for driving; Wherein the input of chip for driving receives the output signal of these schmitt trigger 40106 chips; The output of said chip for driving is connected with the input of five level power unit.
Above-mentioned said five level power circuit (see figure 4)s comprise: single-phase 8 the IGBT person in charge, filter inductance L that contain fly-wheel diode
fThe IGBT that 8 of said every phases contain fly-wheel diode is responsible for to be and is connected in series, and the one end is connected to the filter inductance end, and the other end connects together; Said every single-phase 8 IGBT are responsible for and filter inductance L
fConnect, and be connected in series in the electric device.
Claims (7)
1. device based on the Active Power Filter-APF of digital signal processing chip control is characterized in that it is made up of control panel, central data treatment circuit, photoelectric switching circuit, optical-fibre communications device and drive circuit, five level power circuit and current sampling circuit.Wherein, said central data treatment circuit comprises two circuit units of DSP and CPLD; Said control panel is two-way the connection with DSP; Be two-way the connection between said DSP circuit unit and the CPLD circuit unit; The output of said CPLD circuit unit is connected with the input of photoelectric switching circuit; The output of said photoelectric switching circuit is connected with the input of optical-fibre communications device and drive circuit; The output of said optical-fibre communications device and drive circuit is connected with the input of five level power circuit; The output of said five level power circuit is connected with the input of electric device; The input of said current sampling circuit is connected with the output of electric device, and its output is connected with the input of DSP circuit unit.
2. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said central data treatment circuit by supply unit, crystal oscillating circuit, DSP circuit unit, open into/leave control circuit, man-machine interface-control panel, netting twine and CPLD extended chip to form; Wherein, said supply unit is the supply unit that power supply is provided for each module of central data treatment circuit; The output of said crystal oscillating circuit is connected with the output pin of DSP circuit unit; Said open into/leave control circuit to constitute by sister's circuit of central data treatment circuit, and be two-way with the central data treatment circuit and be connected; Man-machine interface-control panel is two-way according to netting twine with the DSP circuit unit and is connected; Said CPLD extended chip is two-way with the DSP circuit unit and is connected.
3. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said DSP is TMS320F28335 floating type DSP.
4. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said optical-fibre communications device and drive circuit mainly comprise the photoelectric conversion unit of communication optical fiber, drive circuit and drive circuit side; The input of the photoelectric conversion unit of said drive circuit side receives the control impuls of being sent by the CPLD extended chip according to communication optical fiber, and its output is connected with the input of drive circuit; Said drive circuit is exported to five level power circuit with the driving pulse of output; Said communication optical fiber contains No. 24 drive circuit optical fiber and 6 tunnel feedback signal Transmission Fibers; Wherein No. 24 drive circuit optical fiber are to be used for 24 tunnel control impuls of CPLD extended chip output are exported to the communication optical fiber of drive circuit, and said 6 tunnel feedback signal Transmission Fibers are the Transmission Fibers that the operating state of drive circuit fed back to CPLD.
5. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said drive circuit sidelight electricity converting unit comprises that filter capacitor CO1, signal receive optical fiber head OP2521, pull-up resistor RD1, diode D2, discharge resistance R5, capacitor C 4, capacitor C 5, these schmitt trigger 40106 chips; Wherein, said filter capacitor CO1 connects the pin that signal receives optical fiber head OP2521; Said pull-up resistor RD1 is connected with the pin that signal receives optical fiber head OP2521; String receives between optical fiber head OP2521 and this schmitt trigger 40106 chips at signal after said diode D2 and the discharge resistance R5 parallel connection; Said capacitor C 4, capacitor C 5 are connected with these schmitt trigger 40106 pin of chip respectively.
6. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said drive circuit is made up of the drive circuit that comprises the 2SD315A chip for driving; Wherein the input of chip for driving receives the output signal of these schmitt trigger 40106 chips; The output of said chip for driving is connected with the input of five level power unit.
7. according to the device of said a kind of Active Power Filter-APF based on digital signal processing chip control in the claim 1, it is characterized in that said five level power circuit comprise: single-phase 8 IGBT that contain fly-wheel diode are responsible for, filter inductance L
fThe IGBT that 8 of said every phases contain fly-wheel diode is responsible for to be and is connected in series, and the one end is connected to the filter inductance end, and the other end connects together; Said every single-phase 8 IGBT are responsible for and filter inductance L
fConnect, and be connected in series in the electric device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920251230XU CN201562968U (en) | 2009-12-03 | 2009-12-03 | Device based on active power filter controlled by digital signal processing chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920251230XU CN201562968U (en) | 2009-12-03 | 2009-12-03 | Device based on active power filter controlled by digital signal processing chip |
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| Publication Number | Publication Date |
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| CN201562968U true CN201562968U (en) | 2010-08-25 |
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| CN200920251230XU Expired - Lifetime CN201562968U (en) | 2009-12-03 | 2009-12-03 | Device based on active power filter controlled by digital signal processing chip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529284A (en) * | 2012-07-06 | 2014-01-22 | 核工业西南物理研究院 | Over-current detector based on CPLD and provided with master-slave multi-computer communication function |
-
2009
- 2009-12-03 CN CN200920251230XU patent/CN201562968U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529284A (en) * | 2012-07-06 | 2014-01-22 | 核工业西南物理研究院 | Over-current detector based on CPLD and provided with master-slave multi-computer communication function |
| CN103529284B (en) * | 2012-07-06 | 2016-07-13 | 核工业西南物理研究院 | A kind of over-current detector possessing Subordinate communication function based on CPLD |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Shaoyu Inventor after: Tian Mi Inventor after: Gao Feng Inventor after: Liu Haixu Inventor after: Ma Youjie Inventor after: Li Shengming Inventor after: Zhou Xuesong Inventor after: Cheng Deshu Inventor after: Quan Bo Inventor after: Song Daichun Inventor before: Ma Youjie Inventor before: Li Shengming Inventor before: Zhou Xuesong Inventor before: Cheng Deshu Inventor before: Quan Bo Inventor before: Song Daichun Inventor before: Tian Mi |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131202 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Zhangjiakou Scenery Storage Demonstration Power Plant Co., Ltd. Address before: 300384 Hongqi Road extension line, Tianjin, Nankai District Patentee before: Tianjin University of Technology |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |