CN206517065U - A kind of single-phase active power filter measure and control device - Google Patents
A kind of single-phase active power filter measure and control device Download PDFInfo
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- CN206517065U CN206517065U CN201720240864.XU CN201720240864U CN206517065U CN 206517065 U CN206517065 U CN 206517065U CN 201720240864 U CN201720240864 U CN 201720240864U CN 206517065 U CN206517065 U CN 206517065U
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- dsp
- voltage sensor
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- voltage
- active power
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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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Abstract
A kind of single-phase active power filter measure and control device, including algorithm DSP, master control DSP, CAN, AC voltage sensor and voltage zero-crossing detection circuit, Hall sensor, direct current voltage sensor, drive circuit, liquid crystal display LCD, keyboard and host computer PC.The device completes the control of single-phase active filtering using Two DSP structure, not only increases the real-time of system, also allows for controlling and monitor to develop simultaneously.
Description
Technical field
The utility model relates to a kind of single-phase active power filter measure and control device.
Background technology
With the application of a large amount of non-linear power electronic equipments, harmonic pollution in electric power net is on the rise, had a strong impact on electricity
Net safety, harmonic wave control is by extensive concern.Active Power Filter-APF (APF) is exactly to be used to administer harmonic wave and idle important dress
Put, the device quickly can dynamically compensate each harmonic and idle, how to have to it compared with traditional passive filter
The detection and control of effect are Recent study focuses.Active filter uses single-chip microcomputer more in terms of data processing conventional method
Or fixed DSP is detected and controlled, the arithmetic speed and real-time of system are difficult to ensure that.Because electric railway etc. is single-phase
The presence of load causes the serious imbalance of three phase network, and it is unsatisfactory to compensate effect using three-phase active power filter,
It is all applicable single-phase shunt active filter to single-phase power network and three-phase four-wire system unbalance grid to need a kind of.
The content of the invention
In order to solve the problems, such as the harmonic wave control for single-phase power network and three-phase four-wire system unbalance grid, the utility model is carried
A kind of single-phase active power filter measure and control device is gone out.
The single-phase active power filter measure and control device, including algorithm DSP, master control DSP, CAN, AC voltage sensor
And voltage zero-crossing detection circuit, Hall sensor, direct current voltage sensor, drive circuit, liquid crystal display LCD, keyboard and upper
Position machine PC, wherein AC voltage sensor and voltage zero-crossing detection circuit collection line voltage simultaneously carry out zero-crossing examination to it,
Hall sensor gathers power network current, and direct current voltage sensor gathers the input electricity of inverter in the single-phase active power filter
Pressure, the result of the AC voltage sensor and voltage zero-crossing detection circuit, Hall sensor and direct current voltage sensor collection
Input is sent to master control DSP to algorithm DSP, and by CAN, and master control DSP is calculated the result of collection, and control is ordered
Order is sent to algorithm DSP, and produce drive signal by algorithm DSP controls the inverter to drive circuit, and by drive circuit
Middle IGBT turn-on and turn-off, also, master control DSP connects liquid crystal display LCD, keyboard and host computer PC respectively.
Brief description of the drawings
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 is according to single-phase active power filter measure and control device hardware block diagram of the present utility model.
Embodiment
In order to be better understood from the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and provides
Embodiment.
Fig. 1 is single-phase active power filter measure and control device hardware block diagram.In order to meet requirement of real-time, whole measure and control device is adopted
With Two DSP structure, algorithm DSP and master control DSP are referred to as.Algorithm DSP is connected with master control DSP by CAN, algorithm unit
Including AC voltage sensor and voltage zero-crossing detection circuit, Hall sensor and direct current voltage sensor, mainly it is responsible for electric energy
Signal acquisition, the calculating of instruction current produces drive signal, and leading by pulse-triggered drive circuit four IGBT pipes of control
Logical and shut-off, makes inverter produce compensating reactive power and suppresses the electric current of harmonic wave.The collection number that master control DSP is transmitted through coming to CAN
According to being calculated, current power quality parameter is obtained, and is adjusted with the quality of power supply desired value of setting, by control command
It is sent to algorithm DSP, also, master control DSP connections LCD, keyboard and host computer PC.
The ADC of algorithm DSP has 16 input channels, and when having startup conversion signal, ADC will be according to selected
Passage carry out analog-to-digital conversion, after converting, sampled value is stored in corresponding register, the value of the register is read simultaneously
It is multiplied by the value that digital-to-analogue conversion coefficient can obtain realistic simulation amount.
Master control DSP obtains the data of collection by CAN from algorithm DSP, and voltage signal is monitored, when receiving
Magnitude of voltage when being reduced to limit value, current operating parameter is saved in master control DSP memory, and shown by equipment by it
Inform user.Master control DSP is connected by parallel busses with LCD, and display information is exported on LCD.Master control DSP passes through string
Mouth line is connected with keyboard, collection input through keyboard instruction.Master control DSP RXD and TXD pins connection RS485 chips, using standard
ModbusRTU stipulations are communicated with PC host computers.
In order to complete the functions, algorithm DSP such as parameter calculating, data storage, status display, equipment control in master control DSP
The voltage of sampling, current value by CAN need to be sent to master control DSP, CAN is many master-slave modes, and traffic rate is most
High reachable 1Mbps, communication distance is farthest up to 10km.Arbitrary node can send information to other nodes in CAN, and
There are CRC and other verification measures, corrupt data rate is extremely low.Device using CTM1050T as CAN transceiver module, in the module
Portion is integrated with all required CAN isolation and CAN sending and receiving devices TMS320F28335 eCAN modules include 32 mailboxes, can
Different electrical energy parameters are sent using different mailboxes, the ID for sending mailbox and reception mailbox must be identical, using the side of inquiry
Information frame is sent to CAN transmission buffering area by formula, determines whether to receive data by inquiring about the state of CANRMP registers.
Device receives data by the way of interrupting.
Device completes single-phase APF control using Two DSP structure, not only increases the real-time of system, also allows for control
Developed simultaneously with monitoring.With the development of technology, newest detection and control method are applied in practice, by with better function
DSP complete field data processing be inevitable requirement.
Claims (1)
1. a kind of single-phase active power filter measure and control device, including algorithm DSP, master control DSP, CAN, AC voltage sensor
And voltage zero-crossing detection circuit, Hall sensor, direct current voltage sensor, drive circuit, liquid crystal display LCD, keyboard and upper
Position machine PC, wherein AC voltage sensor and voltage zero-crossing detection circuit collection line voltage simultaneously carry out zero-crossing examination to it,
Hall sensor gathers power network current, and direct current voltage sensor gathers the input electricity of inverter in the single-phase active power filter
Pressure, the result of the AC voltage sensor and voltage zero-crossing detection circuit, Hall sensor and direct current voltage sensor collection
Input is sent to master control DSP to algorithm DSP, and by CAN, and master control DSP is calculated the result of collection, and control is ordered
Order is sent to algorithm DSP, and produce drive signal by algorithm DSP controls the inverter to drive circuit, and by drive circuit
Middle IGBT turn-on and turn-off, also, master control DSP connects liquid crystal display LCD, keyboard and host computer PC respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240864.XU CN206517065U (en) | 2017-03-13 | 2017-03-13 | A kind of single-phase active power filter measure and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240864.XU CN206517065U (en) | 2017-03-13 | 2017-03-13 | A kind of single-phase active power filter measure and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517065U true CN206517065U (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720240864.XU Active CN206517065U (en) | 2017-03-13 | 2017-03-13 | A kind of single-phase active power filter measure and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517065U (en) |
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2017
- 2017-03-13 CN CN201720240864.XU patent/CN206517065U/en active Active
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