CN208316301U - Active power filtering control system based on DSP - Google Patents
Active power filtering control system based on DSP Download PDFInfo
- Publication number
- CN208316301U CN208316301U CN201820282638.2U CN201820282638U CN208316301U CN 208316301 U CN208316301 U CN 208316301U CN 201820282638 U CN201820282638 U CN 201820282638U CN 208316301 U CN208316301 U CN 208316301U
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- China
- Prior art keywords
- dsp
- module
- model
- active power
- control system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
-
- 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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- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
- Power Conversion In General (AREA)
Abstract
The utility model discloses the active power filtering control systems based on DSP, including DSP control module, DSP control module is connected separately with drive module, signal detection and conditioning module and capture and locking phase module, drive module is connected with converter module, and signal detection and conditioning module are connected separately with converter module, the first Hall current sensor and the second Hall current sensor.Active power filtering control system of the utility model based on DSP can quickly and accurately sample the signals such as power network current, voltage and load current；Complete the generation of pwm control signal and the operation of harmonic current；Output correctly compensates electric current.
Description
Technical field
The utility model belongs to power electronic equipment technical field, is related to the active power filtering control system based on DSP.
Background technique
All kinds of power electronic equipments that Adjoint technology develops and generates are mostly nonlinear load, these nonlinear loads add again
Upper traditional some non-linear equipments can generate a large amount of harmonic current, reactive current and asymmetric electric current and inject common electrical
Net, so that network voltage, current waveform generate distortion, power supply quality is reduced, thus around influencing other power devices it is normal
Work.
Utility model content
The purpose of the utility model is to provide the active power filtering control systems based on DSP, are able to solve mains by harmonics and nothing
Function problem improves the power supply quality of power grid.
The utility model is the technical scheme adopted is that the active power filtering control system based on DSP, including DSP control mould
Block, DSP control module are connected separately with drive module, signal detection and conditioning module and capture and locking phase module, drive module
Be connected with converter module, signal detection and conditioning module be connected separately with converter module, the first Hall current sensor and
Second Hall current sensor.
The utility model is also characterized by
DSP control module includes dsp chip, dsp chip model TMS320F2812.
Drive module includes driving power and high speed photo coupling, and driving power both ends are connected separately with the two poles of the earth of decoupling capacitor,
High speed photo coupling is connect with dsp chip.
Driving power is the dedicated driving power of IPM, the model HCPL450 of high speed photo coupling.
Signal detection and conditioning module include current sampling circuit and DC capacitor voltage sample circuit, current sample electricity
Road and DC capacitor voltage sample circuit are connect with dsp chip respectively.
Capture and locking phase module include capture phase lock circuitry, and capturing has locking phase chip in phase lock circuitry, locking phase chip
Model CD4046.
Converter module includes current transformer and Hall voltage sensor, the model PM25RSK120 of current transformer, Hall electricity
Pressure sensor is connect with DC capacitor voltage sample circuit.
First Hall current sensor and the second Hall current sensor model are LA25-NP.
The beneficial effects of the utility model are: active power filtering control system of the utility model based on DSP being capable of quick, essence
Really the signals such as power network current, voltage and load current are sampled；Complete generation and the harmonic current of pwm control signal
Operation；Output correctly compensates electric current.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of active power filtering control system of the utility model based on DSP.
In figure, 1.DSP control module, 2. drive modules, 3. signal detections and conditioning module, 4. captures and locking phase module,
5. converter module, 6. first Hall current sensors, 7. second Hall current sensors.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Active power filtering control system of the utility model based on DSP, as shown in Figure 1, including DSP control module 1, DSP control
Molding block 1 is connected separately with drive module 2, signal detection and conditioning module 3 and capture and locking phase module 4, and drive module 2 connects
Have a converter module 5, signal detection and conditioning module 3 be connected separately with converter module 5, the first Hall current sensor 6 and
Second Hall current sensor 7.
DSP control module 1 includes dsp chip, dsp chip model TMS320F2812.
Drive module 2 includes driving power and high speed photo coupling, and driving power both ends are connected separately with the two poles of the earth of decoupling capacitor,
High speed photo coupling is connect with dsp chip.Driving power is the dedicated driving power of IPM, the model HCPL450 of high speed photo coupling.
Signal detection and conditioning module 3 include current sampling circuit and DC capacitor voltage sample circuit, current sample
Circuit and DC capacitor voltage sample circuit are connect with dsp chip respectively.
Capture and locking phase module 4 include capture phase lock circuitry, and capturing has locking phase chip in phase lock circuitry, locking phase chip
Model CD4046.
Converter module 5 includes current transformer and Hall voltage sensor, the model PM25RSK120 of current transformer, Hall electricity
Pressure sensor is connect with DC capacitor voltage sample circuit.
First Hall current sensor 6 and 7 model of the second Hall current sensor are LA25-NP.
The course of work of active power filtering control system of the utility model based on DSP is specific as follows:
As shown in Figure 1, the utility model is accessed power grid based on the active power filtering control system of DSP, which is
Three-phase diode rectifier bridge can generate biggish harmonic current in normal work, and harmonic source, the first Hall are simulated with it
Current sensor 6, the second Hall current sensor 7 and converter module 5 respectively in power grid compensation electric current, load current and
Capacitance voltage signal is detected, and data detected are exported to signal detection and conditioning module 3, signal detection and conditioning
Module 3 converts thereof into the signal for meeting the requirement of DSP control module 1 by the measures such as filtering, ratio, isolation and exports to DSP
Control module 1, meanwhile, capture and the line voltage signal that will test of locking phase module 4 are converted to the rectangular wave letter of same-phase therewith
To DSP control module 1, DSP control module 1 receives signal detection and conditioning module 3 and captures and locking phase module 4 is defeated for number output
After signal out, signal is controlled by harmonic current detection and control strategy, and control signal is exported to drive module
2, drive module 2, which converts control signal to, can drive the driving signal of current transformer to export to converter module 5, current transformer mould
Block 5 exports compensation electric current then according to the on-off of the variation control power device of driving signal, exchanges the inductance L energy of side
It is enough to filter off the high-frequency harmonic generated in compensation electric current due to device high-speed switch.
By the above-mentioned means, active power filtering control system of the utility model based on DSP can be quickly and accurately to power grid
The signals such as electric current, voltage and load current are sampled；Complete the generation of pwm control signal and the operation of harmonic current；Output
Correctly compensation electric current.
Claims (5)
1. the active power filtering control system based on DSP, which is characterized in that including DSP control module (1), the DSP control module
(1) drive module (2), signal detection and conditioning module (3) and capture and locking phase module (4), the driving mould are connected separately with
Block (2) is connected with converter module (5), and the signal detection and conditioning module (3) are connected separately with converter module (5), the
One Hall current sensor (6) and the second Hall current sensor (7)；
The DSP control module (1) includes dsp chip, the dsp chip model TMS320F2812；
The drive module (2) includes driving power and high speed photo coupling, and the driving power both ends are connected separately with decoupling capacitor
The two poles of the earth, the high speed photo coupling connect with dsp chip；
The signal detection and conditioning module (3) include current sampling circuit and DC capacitor voltage sample circuit, the electricity
Stream sample circuit and DC capacitor voltage sample circuit are connect with dsp chip respectively.
2. the active power filtering control system according to claim 1 based on DSP, which is characterized in that the driving power is
The dedicated driving power of IPM, the model HCPL450 of the high speed photo coupling.
3. the active power filtering control system according to claim 1 based on DSP, which is characterized in that the capture and locking phase
Module (4) includes capture phase lock circuitry, has locking phase chip, the model of the locking phase chip in the capture phase lock circuitry
CD4046。
4. the active power filtering control system according to claim 1 based on DSP, which is characterized in that the converter module
It (5) include current transformer and Hall voltage sensor, the model PM25RSK120 of the current transformer, the Hall voltage sensor
It is connect with DC capacitor voltage sample circuit.
5. the active power filtering control system according to claim 1 based on DSP, which is characterized in that the first Hall electricity
Flow sensor (6) and the second Hall current sensor (7) model are LA25-NP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820282638.2U CN208316301U (en) | 2018-02-28 | 2018-02-28 | Active power filtering control system based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820282638.2U CN208316301U (en) | 2018-02-28 | 2018-02-28 | Active power filtering control system based on DSP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316301U true CN208316301U (en) | 2019-01-01 |
Family
ID=64721414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820282638.2U Expired - Fee Related CN208316301U (en) | 2018-02-28 | 2018-02-28 | Active power filtering control system based on DSP |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208316301U (en) |
-
2018
- 2018-02-28 CN CN201820282638.2U patent/CN208316301U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20210228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |