CN105186515B - Hybrid power filtering control system - Google Patents
Hybrid power filtering control system Download PDFInfo
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- CN105186515B CN105186515B CN201510453858.8A CN201510453858A CN105186515B CN 105186515 B CN105186515 B CN 105186515B CN 201510453858 A CN201510453858 A CN 201510453858A CN 105186515 B CN105186515 B CN 105186515B
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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
- Y02E40/20—Active power filtering [APF]
Abstract
The present invention discloses a kind of hybrid power filtering control system, the system includes: Active Power Filter-APF control unit, passive power filter control unit and real time communication circuit portion, wherein, the master controller chip DSP of Active Power Filter-APF control unit is connected with each other with the master controller chip ARM of passive power filter control unit by controller local area network's CAN bus, and the optimum allocation of the capacity of harmonic compensation is realized by the real time communication of two master controller chips.The hybrid power filtering control system that the disclosure provides, under the premise of the advantage performance that can guarantee harmonic compensation, it ensure that the stable operation of electric-power filter, cost has been saved to greatest extent, the perfect combination for realizing Cost And Performance improves the cost performance of equipment, it is strong with real-time capacity, the characteristics of strong antijamming capability.
Description
Technical field
The present invention relates to field of power system more particularly to a kind of hybrid power filtering control systems.
Background technique
With the development of economy and power electronic technique, fairing, Switching Power Supply, inverter and frequency converter etc. are non-linear
Load using increasing, so that power grid power quality is received serious influence.The harmonic wave of power grid is increasing, is easy
Inducing power grid resonance causes harmonic wave overvoltage and overcurrent to cause major accident, and harmonic wave can also generate all kinds of electrical installations serious
Interference reduces the service life and will lead to error action of device work, and harmonic wave causes line resistance to increase, and line line loss increases, and fever increases,
Make the premature aging that insulate, easily generation ground short circuit failure causes fire etc..Therefore, in view of the above problems, needing in power grid
Harmonic wave carry out special administration.
Harmonic wave control is divided into Active Power Filter-APF and passive power filter according to principle, and two kinds of harmonic wave control modes are each
It is advantageous.The advantage of Active Power Filter-APF is in response to that the time is fast, good wave filtering effect, can administer a variety of harmonic waves simultaneously, still
Cost is slightly higher.The advantage of passive power filter is stable, at low cost, but filtration efficiency is slightly poor, and can only be administered
Single times harmonic.
Therefore, it is necessary to propose that the mutual supplement with each other's advantages of two kinds of filters may be implemented in control mode, and then harmonic wave is carried out comprehensive
Close control.
Summary of the invention
The disclosure technical problem to be solved is how to realize active and passive filter mutual supplement with each other's advantages, and then right
Harmonic wave carries out comprehensively control.
The disclosure provides a kind of hybrid power filtering control system, comprising: Active Power Filter-APF control unit, passive electrical
Force filter control unit and real time communication circuit portion, wherein the master controller chip DSP of Active Power Filter-APF control unit with
The master controller chip ARM of passive power filter control unit is connected with each other by controller local area network's CAN bus, passes through two
The real time communication of a master controller chip realizes the optimum allocation of the capacity of harmonic compensation.
Further, the Active Power Filter-APF control unit further include Active Power Filter-APF APF analog sampling circuit,
APF power module trigger circuit, APF protect circuit.
Further, the APF analog sampling circuit includes high-precision A/D conversion chip, the APF analog sampling electricity
Master controller chip DSP, DSP master controller chip of the road for by collected data transmission to Active Power Filter-APF passes through
The harmonic content that analysis show that compensation is administered needed for system is calculated, is carried out by the control chip ARM with passive power filter
After real time communication；The harmonic wave that APF power module trigger circuit is used to need to export by Active Power Filter-APF is by trigger circuit
Realize the control to power module；APF protects circuit for realizing the protection to power module.
Further, the passive power filter control unit further includes transistor switching filters TSF analog sampling electricity
Road, TSF trigger circuit, TSF protect circuit.
Further, the TSF analog sampling circuit includes serial a/d conversion chip, and the TSF analog sampling circuit will
Collected data transmission is analyzed to master controller the chip ARM, master controller chip ARM of passive power filter by calculating
Obtain the harmonic content that compensation is administered needed for system；Real time communication is carried out by the control chip DSP with Active Power Filter-APF
Afterwards, switching number passive power filter needed realizes the control to Passive Power module by trigger circuit；TSF protection
Circuit is for realizing the protection to power module.
Further, the TSF passive module trigger circuit of the passive power filter control unit, for trigger signal with
Enabled model by 75451 logic chip logic phases be isolated via opto-coupler chip PC817, signal exported to up to woods
Pause pipe driver ULN2004, for increasing driving capability, finally exports by terminal and is controlled to Passive Power module.
Further, the Master control chip ARM of passive electric filtering control unit is calculated reactive compensation according to sampling and holds
Amount and harmonic wave capacity, distribution need the harmonic compensation circuitry number of switching, and passive electric filtering control unit Master control chip ARM will be thrown
Cut the Master control chip DSP that circuitry number sends Active Power Filter-APF control unit to by CAN bus, Master control chip DSP root
According to the compensation upper limit and overtone order of the data distribution Active Power Filter-APF control unit received.
The hybrid power filtering control system that the disclosure provides, it is ensured that the premise of the advantage performance of harmonic compensation
Under, it ensure that the stable operation of electric-power filter, saved cost to greatest extent, realize the perfect combination of Cost And Performance
The cost performance of equipment is improved, has real-time capacity strong, the characteristics of strong antijamming capability.
Detailed description of the invention
Fig. 1 shows the structural block diagram of the hybrid power filtering control system of one embodiment of the invention.
Fig. 2 shows the structural block diagrams of the hybrid power filtering control system of another embodiment of the present invention.
The active power filtering control unit simulation that Fig. 3 shows the hybrid power filtering control system of one embodiment of the invention is adopted
The circuit diagram of sample circuit.
Fig. 4 shows the active power filtering control unit protection touching of the hybrid power filtering control system of one embodiment of the invention
The circuit diagram of Power Generation Road.
Fig. 5 shows the active power filtering control unit triggering light of the hybrid power filtering control system of one embodiment of the invention
The circuit diagram of power conversion circuit.
The passive filtering control unit simulation that Fig. 6 shows the hybrid power filtering control system of one embodiment of the invention is adopted
The circuit diagram of sample circuit.
Fig. 7 shows the passive filtering control unit protection touching of the hybrid power filtering control system of one embodiment of the invention
The circuit diagram of Power Generation Road.
Specific embodiment
With reference to the accompanying drawings to invention is more fully described, wherein illustrating exemplary embodiment of the present invention.
Fig. 1 shows the structural block diagram of the hybrid power filtering control system of one embodiment of the invention.As shown in Figure 1,
The system 100 specifically includes that Active Power Filter-APF control unit 101, passive power filter control unit 102 and real time communication
Circuit portion 103, wherein the master controller chip DSP of Active Power Filter-APF control unit and passive power filter control unit
Master controller chip ARM is connected with each other by controller local area network (Controller Area Network, CAN) bus,
The optimum allocation of the capacity of harmonic compensation is realized by the real time communication of two master controller chips.In this way, can protect
Under the premise of the advantage performance for having demonstrate,proved harmonic compensation, cost has been saved to greatest extent, has improved the cost performance of equipment, has been had real
The characteristics of Shi Nengli is strong, strong antijamming capability.
Fig. 2 shows the structural block diagrams of the hybrid power filtering control system of another embodiment of the present invention.Such as Fig. 2 institute
Show, includes Active Power Filter-APF control unit 101, passive power filter control unit 102 and real time communication electricity in the system
Road portion 103, wherein Active Power Filter-APF control unit includes APF (Active power filter, Active Power Filter-APF)
Sample circuit 1011, APF control module 1012, APF driving circuit 1013, optical fiber changeover circuit 1015, APF protect circuit
1014, logical transition circuit 1016, active power module 1017.In one specifically embodiment, Active Power Filter-APF
The APF control module 1012 of control unit can the controller chip DSP based on.
Passive power filter control unit includes TSF (Thyristor Switched Filters, the filtering of transistor switching
Device) sample circuit 1021, TSF control module 1022, TSF control module 1022, Passive Power module 1024.Specifically at one
In embodiment, the TSF control module 1022 of passive power filter control unit can the controller chip ARM based on.
In one embodiment, real time communication circuit portion 103 can be CAN communication circuit 1031.
In one embodiment, the Active Power Filter-APF control unit includes that (Active power filter, has APF
Active power filter) analog sampling circuit, APF power module trigger circuit, APF protection circuit.
Specifically, the analog sampling circuit includes high-precision A/D conversion chip, and the analog sampling circuit is used for will
Collected data transmission is analyzed to master controller chip DSP, DSP the master controller chip of Active Power Filter-APF by calculating
It obtains the harmonic content that compensation is administered needed for system, carries out real time communication by the control chip ARM with passive power filter
Afterwards；Power module trigger circuit is used to need the harmonic wave exported to realize by trigger circuit to power mould Active Power Filter-APF
The control of block；Protect circuit for realizing the protection to power module.
Specifically, as shown in figure 3, use 12 s' of the analog sampling module of Active Power Filter-APF control section is high-precision
AD sampling A/D chip AD9220 is spent, multichannel analog signals input to ADG706 after AD conditioning circuit is filtered, then pass through
It exports after ADG706 progress signal behavior and is sampled to AD9220.The chip that conditioning circuit uses is INA128.This control
The advantage of mode is can be sampled simultaneously to multichannel analog signals during the sampling period using the parallel AD of single channel, can be increased
The stability of circuit improves the precision and cost performance of sample circuit.In addition standard basis voltage of the AD9220 itself with 2.5V, can
To solve the problems, such as that AD cannot acquire the negative half-wave of signal.The CPU processing module of Active Power Filter-APF control section uses TI
Digital Signal Processing DSP, have many advantages, such as that arithmetic speed is fast, cost performance is high.
As shown in Figure 4,5, the power module trigger circuit module of Active Power Filter-APF control section and protection circuit mould
Block uses logic gates to protect output signal jointly, protect signal after trigger CD4043 with output signal,
Starting-up signal gives optical fiber transmission circuit into logical AND gate circuit output is crossed, and signal is isolated using optical fiber HFBR1521, then
Photoelectric conversion is carried out to signal with optical fiber HFBR2521 circuit, the signal of optical fiber changeover circuit output is passed through into logical transition circuit
After 40106 carry out signal conversion, last triggering signal is exported to IGBT driving board, realizes the control to power module.
In one embodiment, the passive power filter control unit includes analog sampling circuit, passive module triggering
Circuit, protection circuit.Specifically, the analog sampling circuit includes serial a/d conversion chip, and the analog sampling circuit will be adopted
The data transmission collected is analyzed to master controller the chip ARM, master controller chip ARM of passive power filter by calculating
The harmonic content that compensation is administered needed for system out；After the control chip DSP with passive power filter carries out real time communication,
The switching number that passive power filter is needed realizes the control to Passive Power module by trigger circuit；Circuit is protected to use
In protection of the realization to power module.
In one embodiment, the passive module trigger circuit of the passive power filter control unit, for triggering letter
Number with enabled model by 75451 logic chip logic phases be isolated via optocoupler PC817, signal exported to up to woods
Pause pipe driver ULN2004, for increasing driving capability, finally exports by terminal and is controlled to Passive Power module.
As shown in fig. 6, the analog sampling module of passive power filter control section is using serial AD conversion chip
ADS7844 samples analog signal, jointly using the reference voltage of AD9220 as output analog signal in sample circuit
Reference voltage, also input signal is used as to sample reference voltage, can guarantee the real-time of sampled reference voltage in this way
With accuracy.The CPU processing module of passive power filter control section uses embedded processors ARM, this CPU is 32 and is
System, functionally increase DSP instruction set provide 16 and 32 arithmetic operation capabilities of enhancing, improve performance and flexibility.
As shown in fig. 7, the power module trigger circuit module of passive electric filtering control section and protection circuit module are total
Output signal is protected with using logic gates.Trigger signal and starting-up signal, the enabled common input logic core of model
The signal of piece 75451, output is isolated via optocoupler PC817.Signal after isolation is via Darlington transistor driver ULN2004
It after increasing driving capability, finally exports and gives Passive Power module, realize the control to Passive Power module.
In one embodiment, the Master control chip ARM of passive electric filtering control unit is calculated idle according to sampling
Compensation capacity and harmonic wave capacity, distribution need the harmonic compensation circuitry number of switching, passive electric filtering control unit Master control chip
Switching circuitry number is sent to the Master control chip DSP of Active Power Filter-APF control unit, master control coremaking by ARM by CAN bus
Piece DSP distributes the compensation upper limit and overtone order of Active Power Filter-APF control unit according to the data received.
For example, it is assumed that the harmonic compensation branch of passive electric filtering is 5 times and 7 times, and 5 subharmonic loaded are relatively high,
So then passive power filter control CPU will send out switching situation according to sampled result 5 filter branch of limited switching
DSP is given, 5 subharmonic compensation capacities can be reduced after receiving data, residual capacity is distributed to other harmonic waves and is mended by DSP
It repays, not only can guarantee the high advantage of Active Power Filter-APF quick response, compensation precision in this way, but also Active Power Filter-APF can be improved
The utilization rate of capacity.In this process, Active Power Filter-APF control section can constantly mend harmonic wave existing for system
Repay, in this way can continuous correction-compensation coefficient so that harmonic compensation is more acurrate, compensation effect is more preferable.
Hybrid power filtering control system provided by the invention, including Active Power Filter-APF control section, passive electrical
Force filter control section and DSP, ARM double-core real time communication circuit part.Active Power Filter-APF control unit includes system
Sampling, the calculating of system parameter, output trigger circuit and protection circuit, passive electric filtering control section include that pulse generates electricity
Road, driving circuit and protection circuit, are mainly used in the complicated harmonic wave control project in electric system.In this way, can be effective
Active Power Filter-APF is combined into control with passive power filter, can satisfy the filtering requirements of various electric system,
Stabilization of equipment performance is improved, the stable operation of electric-power filter is ensure that, has farthest saved cost.Realize cost with
The perfect combination of performance.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (1)
1. a kind of hybrid power filtering control system characterized by comprising Active Power Filter-APF control unit, passive electrical
Force filter control unit and real time communication circuit portion, wherein
The master controller chip DSP of Active Power Filter-APF control unit and the master controller chip of passive power filter control unit
ARM is connected with each other by controller local area network's CAN bus, realizes harmonic wave by the real time communication of two master controller chips
The optimum allocation of the capacity of compensation；
The Active Power Filter-APF control unit further includes Active Power Filter-APF APF analog sampling circuit, APF active power mould
Block trigger circuit, APF protect circuit；
The APF analog sampling circuit includes high-precision A/D conversion chip,
The APF analog sampling circuit is used for collected data transmission to the master controller of Active Power Filter-APF control unit
The harmonic content that chip DSP, master controller chip DSP show that compensation is administered needed for system by calculating analysis, by with it is passive
After the Master control chip ARM of electric-power filter control unit carries out real time communication；
The harmonic wave that APF active power module trigger circuit is used to need to export by Active Power Filter-APF is realized by trigger circuit
Control to active power module；
APF protects circuit for realizing the protection to active power module；
The passive power filter control unit further includes transistor switching filters TSF analog sampling circuit, TSF passive module
Trigger circuit, TSF protect circuit；
Reactive compensation capacity is calculated according to sampling by the Master control chip ARM of passive power filter control unit and harmonic wave holds
Amount, distribution need the harmonic compensation circuitry number of switching,
Passive power filter control unit Master control chip ARM sends switching circuitry number to active electric power filter by CAN bus
The Master control chip DSP of wave device control unit, Master control chip DSP distribute Active Power Filter-APF control unit according to the data received
The compensation upper limit and overtone order；
The TSF analog sampling circuit includes serial a/d conversion chip,
The TSF analog sampling circuit is by collected data transmission to the master controller chip ARM of passive power filter, master
The harmonic content that controller chip ARM show that compensation is administered needed for system by calculating analysis；
Master controller chip ARM is after carrying out real time communication with the Master control chip DSP of Active Power Filter-APF, by passive electrical
The switching circuitry number that force filter needs realizes the control to Passive Power module by TSF passive module trigger circuit；
TSF protects circuit for realizing the protection to Passive Power module；
The TSF passive module trigger circuit of the passive power filter control unit is patrolled for using jointly with TSF protection circuit
It collects gate circuit to protect output signal, trigger signal, starting-up signal, enable signal input and gate logic chip jointly
After 75451, the signal of output is isolated via opto-coupler chip PC817, and the signal after isolation increases via Darlington ULN2004
After driving capability, finally exports by terminal and controlled to Passive Power module.
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| CN201510453858.8A CN105186515B (en) | 2015-07-29 | 2015-07-29 | Hybrid power filtering control system |
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| CN110391664B (en) * | 2019-04-30 | 2021-10-08 | 江苏谷峰电力科技股份有限公司 | Low-voltage treatment device and method suitable for long-distance 10kV distribution network tail end |
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| CN101068082B (en) * | 2007-03-28 | 2011-05-25 | 中国南车集团株洲电力机车研究所 | Comprehensive compensating device and method |
| CN201260080Y (en) * | 2008-08-29 | 2009-06-17 | 东莞市友美电源设备有限公司 | Device for passive compensation and harmonic wave control for intelligent electric power system |
| WO2012149430A1 (en) * | 2011-04-27 | 2012-11-01 | Todd Shudarek | Combined active and passive harmonic mitigation devices and applications thereof |
| CN102882219B (en) * | 2012-10-26 | 2014-11-05 | 株洲变流技术国家工程研究中心有限公司 | Railway power supply system comprehensive electric energy quality treatment device and method thereof |
| CN104518510A (en) * | 2013-10-08 | 2015-04-15 | 刘英杰 | Active power filter controller |
| CN104953588A (en) * | 2014-03-27 | 2015-09-30 | 威仕泰克电气(上海)有限公司 | Intelligent modular hybrid filtering compensation device |
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Effective date of registration: 20190719 Address after: 264006 No. 16 Wuhan Street, Yantai Development Zone, Shandong Province Patentee after: Shandong Hada Electric Co., Ltd. Address before: 264000 No. 16 Wuhan Street, Yantai Development Zone, Shandong Province Patentee before: Shandong Blue Power Technology Co., Ltd. |