CN106877358A - A kind of design of the control device of the STATCOM based on DSP - Google Patents
A kind of design of the control device of the STATCOM based on DSP Download PDFInfo
- Publication number
- CN106877358A CN106877358A CN201710269661.8A CN201710269661A CN106877358A CN 106877358 A CN106877358 A CN 106877358A CN 201710269661 A CN201710269661 A CN 201710269661A CN 106877358 A CN106877358 A CN 106877358A
- Authority
- CN
- China
- Prior art keywords
- statcom
- module
- control
- power
- dsp
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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
- Y02E40/10—Flexible AC transmission systems [FACTS]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
A kind of control device of the STATCOM based on DSP of present invention offer, including carry the control panel of DSP2812 chips, measuring circuit, protection circuit, light-coupled isolation module, power amplifier board, AC power supply module, STATCOM, host computer.Annexation between each module is; DSP2812 chips are sampled to the data that measuring circuit is exported; produce and send pwm control signal according to the data that sampling is returned; again power amplifier board is delivered to after light-coupled isolation resume module; power amplifier board is powered by AC power supply module; receive and the control to STATCOM is realized by device for power switching thereon after control signal; data are uploaded to host computer monitoring simultaneously, protection circuit is mainly responsible for the over-pressed of STATCOM, excessively stream and overtemperature protection.The present invention uses the hardware system of novel high-performance low-power consumption, and software compatibility is good, and peripheral components are few, low cost, improve the operational efficiency and control accuracy of system.
Description
Technical field
The invention belongs to field of power, and in particular to a kind of control device of the STATCOM based on DSP
Design.
Background technology
Distribution system is located at the terminal of power system, is the part being joined directly together with scattered user in power system, together
When be also that most sensitive part is changed to human society life；In recent years, rectifier, electric arc furnaces, frequency control in power distribution network
The load rapid growth such as device, electric railway, most of power electronic equipment power factors are relatively low, and additional negative is brought to power network
Load, declines the quality of power supply, influences power network and user equipment safety and economical operation.
STATCOM as flexible AC transmitting system one of important member, can it is quick, in real time to power network
Reactive-load compensation is carried out, the research heat of reactive power compensator now is turned into by its excellent regulation performance and stronger compensation ability
Point；Installed during STATCOM can be effectively improved power network due to a large amount of impact loads in the appropriate location of power system
The phenomenon that the quality of power supply that input is brought declines, for example, improve power factor, overcome three-phase imbalance, eliminate voltage flicker and electricity
Pressure fluctuation, supression harmonic pollution etc.；Using the STATCOM of low-voltage distribution system, carried out based on small-power occasion
Reactive-load compensation, load needs are idle directly to be provided by static synchronous compensator device nearby, so avoids idle passing through
Remote electrical grid transmission to distribution system cause it is a series of to topic, and compensation performance is high, can be very good to meet idle negative
The demand of lotus, it is seen that low pressure Small And Medium Capacity static synchronous compensator device will have very wide application prospect in China.
Controller is one of core component of STATCOM, and it passes through the arteries and veins for producing and controlling driving switch device
The various actions of control STATCOM are brought, the control task of static synchronous compensator device is completed, designed good
Controller, is the deciding factor of STATCOM compensation effect quality from suitable control strategy；Due to microprocessor
The update of device MCU technologies and power electronics correlation technique, pulse width modulation（PWM）Technology is widely used in electrically
In transmission system field, in pulse width modulation control strategy, SVPWM is different from conventional art, and it is in algorithm and realization side
Special optimization has been done in formula, the harmonic components in the output waveform of inverter can have largely been excluded, and reduce static
The energy loss of synchronous compensator；On the other hand, it is the performance that ensures SVPWM control strategies, the speed of service of monolithic is remote
Cannot far meet, the demand with people for high performance digital processing chip, the development of DSP is also advanced, and DSP has
Powerful operational performance, and chip internal integrated functionality integrality.
Because STATCOM controlling unit is computationally intensive, flow is complicated, and required precision is high, traditional with single-chip microcomputer
As the controller of control core due to being limited with speed by hardware resource, sampling precision is not high, and the sampled point per cycle is few,
The algorithm that amount of calculation can only be selected small, as a result limits the precision of measurement, cannot realize mending the real-time dynamic reactive of power network
Repay, and use High Performance DSP for the controller of control core, using the computing of its fast powerful and disposal ability and parallel fortune
Capable ability, can not only meet the requirement of the real-time of device and the complexity grade height of Processing Algorithm, and with computing
Speed is fast, high precision, favorable expandability the advantages of, also imply that the algorithm that can in dsp realize more senior complexity comes real
Now control, including neuron control, Kalman filtering, Self Adaptive Control, fuzzy control etc., greatly enhance system
Reaction speed and the accuracy of control, dsp controller are easy to use with its compact conformation, dependable performance, and function is strong, price
Cheap the advantages of, has obtained the preference of numerous users.
General STATCOM control causes that the reaction speed of system is slower using traditional control algorithm, control essence
Degree is limited, it is impossible to meet actual demand, and the present invention realizes digitlization control to space pulse width modulated wave based on DSP2812 chips
System, reduces the dependence to peripheral components, reduces cost, has wide range of applications, in the drive control of STATCOM
In have good development prospect.
The content of the invention
The purpose of the present invention is to design a kind of control device of the STATCOM based on DSP, solves current quiet
Energy consumption is big in synchronous compensator control, and control technology falls behind, system response speed problem low with efficiency slowly.
In order to realize foregoing invention purpose, the present invention devises hardware components and software section.
Hardware components include carrying the control panel of DSP2812 chips, measuring circuit, protection circuit, light-coupled isolation module, work(
Rate plate, AC power supply module, STATCOM, host computer, the annexation between each module is, DSP2812 chips pair
The data of measuring circuit output are sampled, and according to the data is activation control command that sampling is returned, and send space vector PWM ripple
（SVPWM）Control signal, then power amplifier board is delivered to after light-coupled isolation resume module, power amplifier board is powered by AC power supply module, is received
The control to STATCOM is realized by device for power switching thereon after to pwm control signal, protection circuit is main
It is responsible for the over-pressed of STATCOM, excessively stream and overtemperature protection.
The high-performance 32 of the TMS320C28+ kernel compatible based on code that the DSP control chips are produced using TI companies
Position fixed-point dsp TMS320F2812 is responsible for carrying out data acquisition, generating date, number as control core
It is controlled according to display and upper machine communication and to STATCOM.
The AC power selects one piece of TPS70151 chip, and the power supply voltage stabilizing that 5V is input into is gone out into 1.8V, the multichannel of 3.3V
Power supply, and multichannel is isolated into by inductance, to power to digital circuit respectively with analog circuit.
The light-coupled isolation module, from 6N137 series isolating chips, processes the electric signal of output on control panel to drive
STATCOM.
The measuring circuit module, sensor uses high-performance Hall element, main to include to load three-phase current, quiet
Only synchronous compensator output three-phase compensates electric current, nine measurements of signal of system three-phase voltage.
The protection circuit module, including STATCOM overvoltage, excessively stream and overtemperature protection, once measured value is more than
Preset value, produces signal block drive pulse signal immediately, at the same time carries out fault alarm protection.
The power amplifier board mainly includes, the PWM interfaces being connected with control panel, PWM isolation circuits, fault-signal interface, inverse
Become module, rectification module, voltage sample module, A/D sampling modules, Switching Power Supply etc.；Wherein power amplifier board by PWM interfaces with every
Pwm control signal is received from circuit drive STATCOM later.
Communication of the control panel with host computer is completed by the SCI modules on dsp chip, and communication interface selects chip
MAX485 constitutes communication module, and Transistor-Transistor Logic level is converted into RS-485 level, and host computer is uploaded to by RS-485 buses.
Invention software programming realization is completed all on the platform of CCCS5.5, to realize that STATCOM controls institute
The function to be realized, Program of the present invention mainly solves following problem, and initialization program is calculated according to SVPWM control strategies
The reckoning of method, with reference to the chip feature of DSP2812, program is mainly initialization system, the detection comprising data space and
Initialization, the setting of communication modes, liquid crystal display mode are set, task manager working method is set, interrupt and set（Interruption is posted
Storage and interrupt priority level are set）, start hardware watchdog, forbid switch motion etc.；Data acquisition and procession, mainly completes three
Phase load electric current, three-phase compensation electric current, the collecting measurement data work of system voltage, according to the data for collecting, with d-q without
Work(electric current testing goes to calculate related parameters of electric power；SVPWM pulses are generated, according to the parameter being calculated, with control plan
Slightly control pulse sends, and so as to reach the purpose of compensating reactive power, thus there is the basis of control STATCOM.
Compared with prior art, STATCOM control reaction speed of the invention to innovate and have an advantage that, general
Degree is slow, and control accuracy is limited, and resource is taken present invention saves chip, can largely improve operational efficiency and the control of system
Precision；Using new high-performance low-power-consumption hardware, software algorithm is combined with DSP2812 chips, designed program compatibility
Property is good, and hardware system reduces the dependence to peripheral components, low cost, has a wide range of application.
Brief description of the drawings
Fig. 1 is a kind of hardware architecture frame of the control device of STATCOM based on DSP of the present invention
Figure.
Fig. 2 is a kind of DSP periphery circuit designs of the control device of STATCOM based on DSP of the present invention
Block diagram.
Fig. 3 be a kind of control device of STATCOM based on DSP of the present invention software section in system
Main program flow chart.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The hardware that Fig. 1 show a kind of control device of STATCOM based on DSP of the present invention is totally tied
Structure block diagram, the main control panel for including carrying DSP2812 chips, measuring circuit, protection circuit, light-coupled isolation module, power amplifier board,
AC power supply module, STATCOM, host computer；Annexation between each module is that DSP2812 chips are to measurement electricity
The data of road output are sampled, and according to the data is activation control command that sampling is returned, and send space vector PWM ripple
（SVPWM）Control signal, then power amplifier board is delivered to after light-coupled isolation resume module, power amplifier board is powered by AC power supply module, is received
The control to STATCOM is realized by device for power switching thereon after to pwm control signal, dsp chip passes through
SCI modules and RS-485 circuits will measure and be uploaded to host computer with calculating data and shown and monitored, and protection circuit is mainly born
Blame to the over-pressed of STATCOM, excessively stream and overtemperature protection.
The high-performance 32 of the TMS320C28+ kernel compatible based on code that the DSP control chips are produced using TI companies
Position fixed-point dsp TMS320F2812 is responsible for carrying out data acquisition, generating date, number as control core
It is controlled according to display and upper machine communication and to STATCOM.
The AC power selects one piece of TPS70151 chip, and the power supply voltage stabilizing that 5V is input into is gone out into 1.8V, the multichannel of 3.3V
Power supply, and multichannel is isolated into by inductance, to power to digital circuit respectively with analog circuit.
The light-coupled isolation module, from 6N137 series isolating chips, processes the electric signal of output on control panel to drive
STATCOM.
The measuring circuit module, sensor uses high-performance Hall element, main to include to load three-phase current, quiet
Only synchronous compensator output three-phase compensates electric current, DC voltage, nine measurements of signal of system three-phase voltage.
The protection circuit module, including STATCOM overvoltage, excessively stream and overtemperature protection, once measured value is more than
Preset value, produces signal block drive pulse signal immediately, at the same time carries out fault alarm protection.
The power amplifier board mainly includes：The PWM interfaces being connected with control panel, it is PWM isolation circuits, fault-signal interface, inverse
Become module, rectification module, voltage sample module, A/D sampling modules, Switching Power Supply etc.；Wherein power amplifier board by PWM interfaces with every
Pwm control signal is received from circuit drive STATCOM later.
Communication of the control panel with host computer is completed by the SCI modules on dsp chip, and communication interface selects chip
MAX485 constitutes communication module, and Transistor-Transistor Logic level is converted into RS-485 level, and host computer is uploaded to by RS-485 buses.
Fig. 2 show a kind of DSP peripheral circuits of the control device of STATCOM based on DSP of the present invention
Design frame chart.Mainly contain, On-off signal, switching value interface, SCI modules, UART modules, host computer, liquid crystal driving
Module, electric current loop detection module, eCAN modules, external interrupt module, EEPROM, A/D modular converter etc..DSP2812 chips and
Its peripheral circuit is mainly used to complete A/D conversions and real-time processing in Frequency conversion control system, according to the number that sampling is returned
According to transmission control command, then space vector PWM ripple is produced with space vector control algorithm（SVPWM）.
Fig. 3 is shown in a kind of software section of the control device of STATCOM based on DSP of the present invention
System main program flow chart.Whole STATCOM control software be divided into initialization module, system protection module, display and
Keyboard control module, digital filtering module, conversion and inverse transform block, adjustor module and pulse generation module, set in software
In meter, take full advantage of interrupt service subroutine, with main program cooperate, it is ensured that operating efficiency and real time data processing will
Ask, while simplifying the difficulty of exploitation and the debugging of program；System includes following interruption subroutine, and CPA zero passages are interrupted, determined
When device cycle interruption, A/D interrupt, be respectively completed zero passage flag set, A/D and start and communicate with host computer and data result is transmitted,
Control System Software is designed using modular programmed method, whole programs is divided into different modules according to difference in functionality,
Its advantage is that program structure is clear, readability is strong, is easy to debugging and debugging.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations, institute
The those of ordinary skill in category field specific embodiment of the invention can still be modified with reference to above-described embodiment or
Equivalent, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent
Within bright claims.
Claims (8)
1. a kind of control panel of control device of the STATCOM based on DSP, including carrying DSP2812 chips, measurement
Circuit, protection circuit, light-coupled isolation module, power amplifier board, AC power supply module, STATCOM, host computer, each module it
Between annexation be that DSP2812 chips are sampled to the data that measuring circuit is exported, according to sampling return data produce
And send space vector PWM ripple（SVPWM）As control signal, then power amplifier board, power are delivered to after light-coupled isolation resume module
Plate is powered by AC power supply module, realizes mending Static Synchronous by device for power switching thereon after receiving pwm control signal
The control of device is repaid, measurement data uploads to host computer and is monitored by the communication module on control panel, and protection circuit is main
It is responsible for the over-pressed of STATCOM, excessively stream and overtemperature protection.
2. a kind of control device of STATCOM based on DSP according to claim 1, it is characterised in that institute
The high-performance 32-bit fixed-point number of the TMS320C28+ kernel compatible based on code that DSP control chips are produced using TI companies
Word signal processor TMS320F2812 is used as control core.
3. the control device of a kind of STATCOM based on DSP according to claim 1, it is characterised in that hand over
Stream power supply selects one piece of TPS70151 chip, and the power supply voltage stabilizing that 5V is input into gone out into 1.8V, the multiple power supplies of 3.3V, and by inductance
Multichannel is isolated into, to power to digital circuit respectively with analog circuit.
4. a kind of control device of STATCOM based on DSP according to claim 1, it is characterised in that control
UART232 and two kinds of communication modules of RS485 are provided simultaneously with making sheet, are easy to and upper machine communication, networking communication strengthens expansible
Property；The communication that RS485 communication modules realize DSP and host computer is constituted from chip MAX485.
5. a kind of control device of STATCOM based on DSP according to claim 1, it is characterised in that light
Coupling isolation module processes the electric signal of output on control panel to drive STATCOM from 6N137 series isolating chips.
6. the control device of a kind of STATCOM based on DSP according to claim 1, it is characterised in that survey
Amount circuit sensor uses high-performance Hall element, main to include to load three-phase current, STATCOM output three
Mutually compensate electric current, nine measurements of signal of system three-phase voltage.
7. the control device of a kind of STATCOM based on DSP according to claim 1, it is characterised in that protect
Protection circuit includes STATCOM overvoltage, excessively stream and overtemperature protection, once measured value is more than preset value, signal is produced immediately
Block drive pulse signal, at the same time carries out fault alarm protection.
8. the control device of a kind of STATCOM based on DSP according to claim 1, it is characterised in that
In the control panel of DSP2812, main hardware module has：On-off signal, switching value interface, SCI modules, UART modules, liquid
Brilliant driver module, electric current loop detection module, eCAN modules, external interrupt module, EEROM, A/D modular converter etc.；Power
The circuit hardware design of plate mainly includes：PWM interfaces, PWM isolation circuits, fault-signal interface, the inversion being connected with control panel
Module, rectification module, voltage sample module, A/D sampling modules, Switching Power Supply, over-sampling modulate circuit etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269661.8A CN106877358A (en) | 2017-04-24 | 2017-04-24 | A kind of design of the control device of the STATCOM based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269661.8A CN106877358A (en) | 2017-04-24 | 2017-04-24 | A kind of design of the control device of the STATCOM based on DSP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106877358A true CN106877358A (en) | 2017-06-20 |
Family
ID=59163433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269661.8A Pending CN106877358A (en) | 2017-04-24 | 2017-04-24 | A kind of design of the control device of the STATCOM based on DSP |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106877358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591821A (en) * | 2017-09-27 | 2018-01-16 | 安徽理工大学 | A kind of low-voltage dynamic reactive power compensation based on STM32 |
-
2017
- 2017-04-24 CN CN201710269661.8A patent/CN106877358A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591821A (en) * | 2017-09-27 | 2018-01-16 | 安徽理工大学 | A kind of low-voltage dynamic reactive power compensation based on STM32 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102710203B (en) | Permanent magnetic motor control device and permanent magnetic motor control method based on energy optimization | |
| CN102158100A (en) | Triphase variable-frequency power supply with high power and operating method thereof | |
| CN110109439A (en) | A kind of test macro of New energy automobile motor and controller | |
| CN106787111B (en) | Time-sharing bidirectional voltage-stabilizing hybrid inverter and control method thereof | |
| CN204008751U (en) | Frequency conversion experiment power supply system in wind-power electricity generation machine testing | |
| CN107579586A (en) | A kind of ship power distribution control system based on intelligent controller | |
| CN202019304U (en) | Three-phase large power frequency conversion power supply | |
| CN106877358A (en) | A kind of design of the control device of the STATCOM based on DSP | |
| CN101860316A (en) | Self-adaptive load following control technical system | |
| CN107658902A (en) | A kind of photovoltaic combining inverter with electric energy quality monitoring function | |
| CN204190402U (en) | Building photovoltaic generation supply intelligent system | |
| CN200979589Y (en) | A middle-high power motor test platform system | |
| CN207442465U (en) | It is a kind of that there is the photovoltaic combining inverter of electric energy quality monitoring | |
| CN106952547B (en) | Grid-connected photovoltaic power generation teaching experiment device | |
| CN102361424B (en) | Fuzzy control strategy-based asynchronous motor soft starter | |
| CN106990732A (en) | A kind of frequency conversion voltage adjusting power control system based on DSP | |
| CN201489026U (en) | Novel intelligent direct-current electronic load | |
| CN207801574U (en) | A kind of ship power distribution control system | |
| CN102255541A (en) | Single-phase inverter capable of performing instantaneous control under dq coordinate system and control method | |
| CN203643523U (en) | Electric energy measuring circuit applied for shore container crane supply energy measurement | |
| CN202649306U (en) | Three-phase electrical parameter measuring device | |
| CN107276423A (en) | Ship shore electric power power model adjustment method | |
| CN202586344U (en) | Power-saving device having power-saving rate verification system | |
| CN111628540A (en) | Novel AC/DC charging pile architecture and upper computer control strategy | |
| CN203133166U (en) | Novel digital frequency sweeper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |