CN106849099A - Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function - Google Patents
Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function Download PDFInfo
- Publication number
- CN106849099A CN106849099A CN201611023249.XA CN201611023249A CN106849099A CN 106849099 A CN106849099 A CN 106849099A CN 201611023249 A CN201611023249 A CN 201611023249A CN 106849099 A CN106849099 A CN 106849099A
- Authority
- CN
- China
- Prior art keywords
- voltage
- capacitor
- harmonic
- current transformers
- compensation
- 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.)
- Withdrawn
Links
- 238000005457 optimization Methods 0.000 title claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims abstract description 144
- 238000012216 screening Methods 0.000 claims description 33
- 230000006870 function Effects 0.000 claims description 27
- 239000000523 sample Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004513 sizing Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004088 simulation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000010349 pulsation Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000007726 management method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of quality of power supply intelligent comprehensive optimization device for possessing scene temperature radio alarm function, and DVR current transformers, the first DC capacitor and APF current transformer parallel connections are formed and compensate loop for the first of voltage compensation in the device；DVR current transformers, the second DC capacitor and the 2nd APF current transformer parallel connections form the second compensation loop for harmonic management and reactive-load compensation；Load compensator is used to record the parameters such as startup, operation, the excision of certain loads；DC voltage fluctuation suppressor is used to suppress the DC voltage of first and second DC capacitor；Network controller is used to realize that control first compensates the voltage compensation in loop, controls the second harmonic management for compensating loop and reactive-load compensation and the Parameter Variation in load compensator to provide corresponding backoff algorithm.Implement the present invention, offset voltage is fallen during grid voltage sags, nothing carries out harmonic management and reactive-load compensation when falling, and voltage pulsation can be suppressed to obtain high-quality output waveform, and the compensation speed that power quality compensation is carried out to user can be improved.
Description
Technical field
The present invention relates to technical field of power systems, more particularly to a kind of electric energy for possessing scene temperature radio alarm function
Quality intelligent complex optimum device.
Background technology
UPQC (Unified Power Quality Conditioner, unified power quality adjusting device) is generally by going here and there
Connection type voltage source converter and parallel connection type voltage source converter are combined into by common DC bus, and it is arranged on user side
Near harmonic load, voltage and current can be compensated simultaneously.Series-type voltage source current transformer plays DVR (Dynamic
Voltage Restorer, dynamic voltage compensator) effect, can suppress voltage pulsation, compensate supply voltage harmonic wave, elimination is matched somebody with somebody
Recurrent voltage swell or Problem of Voltage Temporary-Drop in electric system, improve the damping of device.Parallel connection type voltage source converter rises
To the effect of APF (Active Power Filter, Active Power Filter-APF), load harmonic current, compensation load nothing can be filtered
Work(power.
As shown in figure 1, UPQC combines the converter structure of DVR and APF, DVR current transformers D1* and APF in the prior art
Shared DC capacitor C1*, the DVR current transformer D1* of current transformer F1* is concatenated transformer T1* and is connected to network system side, with dimension
Voltage at tie point, offset voltage flickering and asymmetric function are held, APF current transformers F1* is concatenated reactor L1* and is connected to load
Side, is mainly used in compensation harmonic and reactive current, while maintaining the direct current between DVR current transformer D1* and APF current transformers F1*
Pressure is constant.Wherein, DVR current transformers D1* and APF current transformer F1* is two-way PWM (Pulse-Width Modulation, pulse
Width modulated) current transformer, can both be operated in rectification state, it is also possible to be operated in inverter mode；DVR current transformers D1* is concatenated
Transformer T1* exports fundamental positive sequence offset voltage, to power network injecting power, while can also output harmonic wave offset voltage；APF becomes
Stream device F1* is compensated to power network harmonic, while reactive current can be exported.
, it is necessary to coordinate DVR functions and APF functions in the UPQC courses of work, when there is Voltage Drop, DVR function ons,
Now APF functions have two kinds of selections：First, synchronism stability DC capacitor C1* voltages, for Voltage Drop compensation, but shortcoming exists
In：UPQC, when series side just carries out voltage compensation, the harmonic wave of power network and idle occurs peak there is no harmonics and reactive compensation
Value, need in time carry out harmonic management and reactive-load compensation；2nd, compensation harmonic, no longer maintenance DC capacitor C1* voltages, but shortcoming
It is：DVR compensation functions are limited, because the energy that DVR functions are only stored by DC capacitor C1* and its attached energy storage device is completed,
Energy is finished, and DVR compensation functions terminate, until DC capacitor C1* recovers to normal condition, can just carry out DVR compensation next time
Action.
By retrieval, China Patent Publication No. discloses a kind of unified power quality adjusting device for the A of CN 104393599
And method, above mentioned problem is preferably solved, but, in the program, the inventors discovered that, in the selection of above two APF functions
In, the voltage of DC capacitor C1* easily fluctuates, and is unfavorable for obtaining high-quality output waveform, and harmonic wave due to user load and
Idle characteristic is regular so that user cannot obtain the compensation speed of outstanding power quality compensation.It is therefore desirable to this
It is improved.
The content of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of to possess scene temperature radio alarm function
Quality of power supply intelligent comprehensive optimizes device, and offset voltage is fallen during grid voltage sags, and nothing carries out harmonic management and nothing when falling
Work(is compensated, and can suppress voltage pulsation acquisition high-quality output waveform, and can improve the benefit that power quality compensation is carried out to user
Repay speed.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides and a kind of possess scene temperature radio alarm function
Quality of power supply intelligent comprehensive optimizes device, and described device includes DVR current transformers, an APF current transformers, the 2nd APF current transformers, the
One DC capacitor, the second DC capacitor, transformer, the first reactor, the second reactor, network controller, load compensator and
DC voltage fluctuation suppressor；Wherein,
The DVR current transformers, the first DC capacitor and an APF current transformers three formation first in parallel compensate loop, and
The one end in the first compensation loop is connected by the transformer from the DVR current transformers side with grid side, and the other end is from institute
An APF current transformers side is stated to be connected with load-side by first reactor, during for Voltage Drop in the grid side,
Voltage compensation is carried out, maintains the DC voltage between the DVR current transformers and an APF current transformers constant；
The DVR current transformers, the second DC capacitor and the 2nd APF current transformers three formation second in parallel compensate loop, and
The one end in the second compensation loop is connected by the transformer from the DVR current transformers side with the grid side, the other end
It is connected with the grid side by second reactor from the 2nd APF current transformers side, for the nothing in the grid side
During Voltage Drop, harmonic management and reactive-load compensation are carried out；
The load compensator at least one and be connected with the network controller, each load compensator is used to
Prestore and one be supported under all working state the Changing Pattern formed to load-side electrical network parameter, and according to the current work of load
Make state, corresponding load-side electrical network parameter Changing Pattern and corresponding compensation startup time are sent to the network controller
In；Wherein, the working condition includes incision state, cuts out state and normal operating conditions；
The DC voltage fluctuation suppressor is connected with the network controller, for obtaining and corrects first direct current
Electric capacity and second DC capacitor distinguish corresponding voltage waveform；
The network controller is also connected with the DVR current transformers, an APF current transformers and the 2nd APF current transformers simultaneously,
For when the current voltage for detecting the grid side is less than default threshold value, determining the Voltage Drop of the grid side, open
Moving the DVR current transformers carries out voltage compensation, and controls an APF current transformers to maintain the voltage of first DC capacitor
It is constant, and control the 2nd APF current transformers to carry out harmonic management and reactive-load compensation；Or working as the grid side ought be detected
When preceding voltage is more than default threshold value, determine that the voltage of the grid side, without falling, cuts off the DVR current transformers voltage compensation,
And control the APF current transformers to carry out harmonic management and reactive-load compensation, and the 2nd APF current transformers are controlled to described
Second DC capacitor charges；And be preset with according to the load-side electrical network parameter Changing Pattern that each load compensator sends
Corresponding backoff algorithm；
Also include scene temperature radio alarm unit, the scene temperature radio alarm unit include audible-visual annunciator,
Temp probe and alarm master controller, temp probe are used to detect the temperature of quality of power supply intelligent comprehensive optimization device and export temperature
Degree signal, described audible-visual annunciator is connected on alarm master controller, and the detection signal of described temp probe is total by CAN
Line input is connected to alarm master controller, and the master controller is processed the detection signal of temp probe, and controls acousto-optic report
Alert device action, RF transceiver I is also associated with alarm master controller, also includes 485 gateway nodes, 485 gateway node
Include RF transceiver II, serial data communication module, 485 drive circuits, 485 interfaces, described RF transceiver I and penetrate
Less radio-frequency connection, realizes the nothing of the signal between the temperature signal of temp probe and 485 gateway nodes between frequency transceiver II
Line communicates.
Wherein, each load compensator by ARM chips, memory FLASH, display screen, communication interface and its
Peripheral circuit is formed.
Wherein, the DC voltage fluctuation suppressor includes voltage waveform screening unit and voltage waveform revision unit；Its
In,
The voltage waveform screening unit is right respectively for obtaining first DC capacitor and second DC capacitor
The voltage waveform answered, and the voltage waveform for getting is distinguished into analog-modulated into corresponding sine waveform, and further
The amplitude for filtering out sine waveform in the first DC capacitor after the simulation and the second DC capacitor is unsatisfactory for screening respectively
The moment of condition, determine correspond to respectively in the sine waveform of first DC capacitor and second DC capacitor it is respective
The pulse width of screening moment DC voltage component and each DC voltage component；
The voltage waveform revises unit, the sine for obtaining first DC capacitor and second DC capacitor
The numerical value of each self-sizing moment harmonic voltage component is corresponded in waveform respectively, and according to the sine wave of first DC capacitor
Waveform is in the pulse width of its correspondence screening moment DC voltage component and the numerical value of harmonic voltage component and described second straight
The sine waveform of electric capacity is flowed in the pulse width of its correspondence screening moment DC voltage component and the numerical value of harmonic voltage component,
The voltage waveform of first DC capacitor and the voltage waveform of second DC capacitor are revised respectively.
Wherein, the voltage waveform revision unit includes harmonic wave sampling module, harmonic constant revision module and waveform revision
Module；Wherein,
The harmonic wave sampling module, exists for the voltage waveform to first DC capacitor and second DC capacitor
Each self-sizing moment harmonic voltage component is sampled, and determines the sine of first DC capacitor and second DC capacitor
Numerical value of the waveform in each self-sizing moment harmonic voltage component；
The harmonic constant revises module, in the sine waveform of first DC capacitor, by same screening
When the harmonic voltage component values that engrave divided by after the pulse width values of DC voltage component and being accumulated as first direct current
The harmonic constant of appearance；And in the sine waveform of second DC capacitor, the harmonic voltage engraved during by same screening
Component values are divided by after the pulse width values of DC voltage component and being accumulated as the harmonic constant of second DC capacitor；
The waveform revises module, is multiplied by described first respectively for the harmonic constant by first DC capacitor straight
The voltage waveform for flowing electric capacity adjusts the voltage waveform width of first DC capacitor in the waveforms amplitude at its correspondence screening moment
Value；And it is right at its by voltage waveform that the harmonic constant of second DC capacitor is multiplied by second DC capacitor respectively
The waveforms amplitude at moment should be screened to adjust the voltage waveform amplitude of second DC capacitor.
Wherein, the parameter include being supported on voltage x current instruction under current operating state, PI parameters, filtering parameter and
Overtone order.
Implement the embodiment of the present invention, have the advantages that：
1st, in embodiments of the present invention, due to there are two compensation loops in device, in grid side Voltage Drop, the
An APF current transformers in one compensation loop are used for voltage compensation, and the 2nd APF current transformers in the second compensation loop are used for harmonic wave
And reactive-load compensation, so that burning voltage is constant in realizing that loop can be compensated first ensures Voltage Drop compensation effect, and energy
Harmonics and reactive compensation is carried out in the second compensation loop in time；
2nd, in embodiments of the present invention, due to being employed in device and loading one-to-one load compensator, load is mended
Repay the Changing Pattern for being stored with device and being supported under all working state to load-side electrical network parameter, and the network control in device
Device is then previously stored with the backoff algorithm under each load all working state of correspondence, so that the network controller in device
Time delay from be mutated to administering can be reduced, while compensation quality can be improved according to the backoff algorithm for prestoring；
3rd, in embodiments of the present invention, the first DC capacitor is improved due to employing DC voltage fluctuation suppressor in device
With the pulse width of the second DC capacitor, the adverse effect that harmonic voltage brings is reduced, so as to more effectively reduce the first direct current
The DC voltage fluctuation of electric capacity and the second DC capacitor, obtains the more excellent sine waveform of quality.
In addition, the present invention also has the alarm of temperature scene, while wirelessly temperature signal wirelessly can also be passed
The host computer being connected with 485 interfaces is defeated by, the record and wireless remote alarm function of temperature data is realized.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
The structural representation of the quality of power supply intelligent comprehensive optimization device that Fig. 1 is provided for prior art；
Fig. 2 is the structural representation that quality of power supply intelligent comprehensive provided in an embodiment of the present invention optimizes device；
Fig. 3 scene temperatures alert the theory diagram of radio-cell.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
Step ground is described in detail.
As shown in Fig. 2 being a kind of quality of power supply intelligent comprehensive optimization device provided in an embodiment of the present invention, the device includes
DVR current transformers D1, an APF current transformers F1, the 2nd APF current transformers F2, the first DC capacitor C1, the second DC capacitor C2, change
Depressor T1, the first reactor L1, the second reactor L2, network controller M, load compensator J and DC voltage fluctuation suppressor
K；Wherein,
DVR current transformers D1, the first DC capacitor C1 and an APF current transformers F1 are in parallel between latter three and are formed as the first benefit
Loop 11 is repaid, and the one end in the first compensation loop 11 is connected by transformer T1 from DVR current transformer D1 sides with grid side, the other end
It is connected with load-side by the first reactor L1 from an APF current transformer F1 sides, in the Voltage Drop of grid side, carrying out
Voltage compensation, maintains the DC voltage between a DVR current transformers D1 and APF current transformers F1 constant；
DVR current transformers D1, the second DC capacitor C2 and the 2nd APF current transformers F2 are in parallel between latter three and are formed as the second benefit
Loop 12 is repaid, and the one end in the second compensation loop 12 is connected by transformer T1 from DVR current transformer D1 sides with grid side, the other end
It is connected with grid side by the second reactor L2 from the 2nd APF current transformer F2 sides, for when the no-voltage of grid side falls, entering
Row harmonic management and reactive-load compensation；
Load compensator J at least one and be connected with network controller M, each load compensator J is used to prestore
One is supported under all working state the Changing Pattern formed to load-side electrical network parameter, and according to load current operating state,
Corresponding load-side electrical network parameter Changing Pattern and corresponding compensation startup time are sent into network controller M；Wherein, institute
Stating working condition includes incision state, cuts out state and normal operating conditions；
DC voltage fluctuation suppressor K is connected with network controller M, for obtaining and corrects the first DC capacitor C1 and
Two DC capacitor C2 distinguish corresponding voltage waveform；
Network controller M is also connected with DVR current transformers D1, an APF current transformers F1 and the 2nd APF current transformers F2 simultaneously,
For when the current voltage for detecting grid side is less than default threshold value, determining the Voltage Drop of grid side, start DVR unsteady flows
Device D1 carries out voltage compensation, and controls an APF current transformers F1 to maintain the voltage constant of the first DC capacitor C1, and control the
Two APF current transformers F2 carry out harmonic management and reactive-load compensation；Or when the current voltage for detecting grid side is more than default threshold value
When, determine that the voltage of grid side, without falling, cuts off DVR current transformer D1 voltage compensations, and it is humorous to control an APF current transformers F1 to carry out
Ripple treatment and reactive-load compensation, and the 2nd APF current transformers F2 of control charge to the second DC capacitor C2；And according to each load
The load-side electrical network parameter Changing Pattern that compensator sends is preset with corresponding backoff algorithm.
In embodiments of the present invention, DVR current transformers D1 by IGBT (Insulated Gate Bipolar Transisto,
Insulated gate bipolar transistor) module, drive circuit and protection circuit composition, its function is to detect distortion and the base of line voltage
Ripple deviation, as voltage instruction, is controlled to DVR current transformers D1 so that DVR current transformers D1 exports one by transformer T1
The offset voltage offseted with line voltage distortion and fundamental wave deviation, so that proof load voltage is a specified sine electricity
Pressure；
First APF current transformers F1 is equally made up of IGBT modules, drive circuit and protection circuit, and its function includes：1st, examine
Survey load idle harmonic electric current, as current-order, current transformer F1 is controlled so that current transformer F1 export with
The equal idle harmonic of idle harmonic size of current is loaded, so as to realize the compensation to loading idle harmonic electric current, is made
It is sine-wave current to obtain power network input current, and power factor is 1；2nd, when fluctuating occurs in line voltage, system is operated in DVR states
When, current transformer F1 stops no-power compensation function, is only responsible for having power input, is the direct current that DVR stablizes the first DC capacitor C1
Pressure, is no longer participate in the harmonic wave of power network and idle improvement；
2nd APF current transformers F2 is same to be made up of IGBT modules, drive circuit and protection circuit, and its function includes：1st, examine
Survey be supported on incision, real-time working, cut out under the conditions of by LAN transmission status information, in network controller M lookup
The corresponding incision for loading, real-time working, the solidification APF programs for cutting out, according to program curing as current-order, to the current transformer
F2 is controlled so that current transformer F2 exports the idle harmonic equal with idle harmonic size of current is loaded, so that real
Now to the compensation of the idle harmonic electric current of load so that power network input current is sine-wave current, and power factor is 1；2nd, electricity is worked as
When net voltage fluctuation occurs and needs to carry out DVR and compensate, then current transformer F2 carries out idle harmonic compensation.
Network controller M as device control core, the DSP+FPGA frameworks based on bus structures, for completing power network
Voltage acquisition, control strategy debugging, backoff algorithm realizes that voltage x current instruction is exported and other systemic-functions.Except comprising above-mentioned
Outside basic function, network controller M also controls the load compensator R to carry out the record ripple of certain loads, and recorder data is stored in
In load compensator R, the certain loads side that load compensator R is arranged on user communicates with network controller M, so as to be based on local
The UPQC of net just can adjust controller output according to the consumption habit of user, real-time electricity consumption strategy, and electricity consumption matter is carried out to user
Amount compensation.
It should be noted that network controller M will also store user power utilization facility information, carried out with user power utilization equipment
Tcp/ip communication, Content of Communication includes that order transmission bag and parameter transmit bag；Wherein, order transmission bag content includes device id
Number, device action is instructed (in cutting or cut out or being currently running), acts expeced time, time calibration, data check etc., therefore
In network controller M default backoff algorithm can according to user power utilization facility information, be it is any load be provided be supported on it is any
Corresponding backoff algorithm under working condition, so that the network controller M in device can be calculated according to the compensation for prestoring
Method, reduces the time delay from be mutated to administering, while compensation quality can be improved.
As an example, load cuts every time, cut out and normal operating condition under, all need setting UPQC to work in record ripple
State, then the quality of power supply influence of fluctuations that UPQC detections load action is caused to load-side power network, and data inputting is loaded into benefit
Device J is repaid, the front and rear access time can be set by user, can be not limited to record the front and rear 1.5 second time of Voltage Drop, cut,
The rear 2 second time for cutting out, 2~5 second time of normal operating conditions, influence is cut out as the falling of load equipment, harmonic wave, incision
Reference.After load compensator record load equipment parameter, incision with load equipment, cut out or normal operating condition is associated,
When load-side prepares startup, arrestment, communicated with UPQC by local network interface first, device record wave parameter is passed through into TCP/
IP sends network controller to, and network controller loads algorithm, and waiting facilities starts.After the equipment that detects starts, according to pre-
To loading, the harmonic wave of generation is idle to be compensated for precalculated voltage x current instruction, can greatly reduce the time that LPF brings
Postpone, while reducing PI parameter regulation time delays, significantly improve software, hardware time delay that quality of power supply intelligent comprehensive optimizes device,
Accelerate the power quality controlling reaction speed for certain loads.Wherein, the parameter of load compensator J includes being supported on current work
Make voltage x current instruction, PI parameters, the filtering parameter harmonic number of times under state.
In order to overcome the DC voltage fluctuation of the first DC capacitor C1 and the second DC capacitor C2, rushing for harmonic band is reduced
Hit, therefore DC voltage fluctuation suppressor K includes voltage waveform screening unit and voltage waveform revision unit；Wherein,
Voltage waveform screening unit, corresponding voltage wave is distinguished for obtaining the first DC capacitor and the second DC capacitor
Shape, and the voltage waveform that will get distinguishes analog-modulated into corresponding sine waveform, and after further filtering out simulation
The amplitude of sine waveform is unsatisfactory for the moment of screening conditions respectively in first DC capacitor and the second DC capacitor, determines
Each self-sizing moment DC voltage component and each is corresponded in the sine waveform of one DC capacitor and the second DC capacitor respectively
The pulse width of DC voltage component；
Voltage waveform revises unit, for distinguishing in the sine waveform for obtaining the first DC capacitor and the second DC capacitor
The numerical value of each self-sizing moment harmonic voltage component of correspondence, and screened in its correspondence according to the sine waveform of the first DC capacitor
The pulse width of moment DC voltage component and the numerical value of harmonic voltage component, and the sine waveform of the second DC capacitor exist
The pulse width of its correspondence screening moment DC voltage component and the numerical value of harmonic voltage component, revise the first DC capacitor respectively
Voltage waveform and the second DC capacitor voltage waveform.
Wherein, voltage waveform revision unit includes harmonic wave sampling module, harmonic constant revision module and waveform revision module；
Wherein,
Harmonic wave sampling module, for the voltage waveform to the first DC capacitor and the second DC capacitor at each self-sizing moment
Harmonic voltage component is sampled, and determines the sine waveform of the first DC capacitor and the second DC capacitor at each self-sizing moment
The numerical value of harmonic voltage component；
Harmonic constant revises module, in the sine waveform of the first DC capacitor, being engraved during by same screening
Harmonic voltage component values are divided by after the pulse width values of DC voltage component and being accumulated as the harmonic constant of the first DC capacitor；
And in the sine waveform of the second DC capacitor, the harmonic voltage component values engraved during by same screening are divided by direct current
Press after the pulse width values of component and be accumulated as the harmonic constant of the second DC capacitor；
Waveform revises module, is multiplied by the voltage of the first DC capacitor respectively for the harmonic constant by the first DC capacitor
Waveform adjusts the voltage waveform amplitude of the first DC capacitor in the waveforms amplitude at its correspondence screening moment；And it is straight by second
The voltage waveform that the harmonic constant of stream electric capacity is multiplied by the second DC capacitor respectively is adjusted in the waveforms amplitude at its correspondence screening moment
The voltage waveform amplitude of whole second DC capacitor.
In embodiments of the present invention, the voltage contained by the voltage waveform of the first DC capacitor C1 and the second DC capacitor C2 point
Amount is identical.Therefore, the suppression of DC voltage fluctuation, the voltage are illustrated by taking voltage waveform V (t) of the first DC capacitor C1 as an example
Waveform V (t) is decomposed into DC voltage component, harmonic voltage component and resultant distortion component, is specifically unfolded as follows formula (1)：
Wherein, V (t) is the voltage waveform of the first DC capacitor C1, V0It is the DC voltage component of the first DC capacitor C1,
I.e. voltage-target, can be a fixed value；It is the harmonic voltage component of the first DC capacitor C1；N is harmonic wave
Sequence；P is detection highest order harmonicses number of times；It is harmonic wave initial phase；VψFor the influence of fluctuations of the first DC capacitor C1 is relatively low
Resultant distortion component；
Due to the DC voltage of the first DC capacitor C1, each harmonic component can produce influence to the height of pulse,
Have an impact larger harmonic component, also there is the situation that the influence of different harmonic components is cancelled out each other and the situation mutually strengthened, because
This in order to determine influence of the harmonic voltage to the voltage waveform of the first DC capacitor C1, it is necessary to first pass through voltage waveform simulate by
Sine waveform after modulation, and be compared with normal sine wave, so as to find the distortion moment that harmonic voltage causes, and
Further eliminate.In view of the distortion moment simulates the pulse height (i.e. amplitude) of the sine waveform after being modulated by shadow
Ring, therefore the pulse width of distortion moment DC voltage component can be adjusted, it is consistent with the area for ensuring pulse, so as to correct just
Output waveform of the string ripple at the distortion moment.
The moment of distorting can be determined by screening the pulse height (i.e. amplitude) of the output sine waveform simulated, that is, screened
Amplitude is unsatisfactory for the moment (such as N number of) of screening conditions in the sine waveform gone out after simulation, while straight in order to adjust the distortion moment
The pulse width of component of voltage is flowed, the purpose of amendment output sine wave is reached, it is therefore desirable to determine DC voltage in voltage waveform
Component screening moment (N number of) pulse width corresponding respectively, repairs one by one to carry out waveform.
According to the spectral characteristic of periodic signal, overtone order is higher, and harmonic component is smaller, and harmonic voltage component carries out limited
Number of times is sampled.
(distort the moment) k, k=1,2...m so that one is screened the moment as an example, wherein, m is total time pulse period；It is false
Such as hits M=10, then 10 subharmonic of sampling, as a group objects, are each harmonic wave plus a coefficient, to represent to modulation
The influence of pulse width.According to formula (2), the corresponding harmonic constant β of each hits on moment k is obtainedik：
Wherein, i is 10, therefore can derive detection highest order harmonicses number of times p >=10 in the present embodiment；
And according to the corresponding harmonic constant β of each hits for calculatingik, the accumulation of all 10 coefficients is got up, draw
First DC capacitor C1 harmonic constant β on moment kk, i.e.,Further by the first DC capacitor C1 at the moment
The harmonic constant calculated respectively on 1-m is added up, and obtains the harmonic constant β of the first DC capacitor C1, i.e.,
Set the voltage waveform amplitude T of the first DC capacitor C1 moment kon(k), by harmonic constant β and the voltage wave at k moment
Shape amplitude TonK () is multiplied, revision k moment voltage waveform amplitudes TonK () is corresponding productThe like, will be all of
The voltage waveform amplitude for screening the moment is changed to corresponding product (pulse width i.e. after harmonic constant compensation), waits own
The screening moment all compensate after the completion of, voltage waveform is modulated into sinewave output such that it is able to overcome the limitation of prior art
Property, DC voltage fluctuation is more effectively reduced, obtain the more excellent sine waveform of quality.
Similarly, the DC voltage of the second DC capacitor C2 suppresses, and the DC voltage suppression with the first DC capacitor C1 is identical,
Will not be repeated here.
In embodiments of the present invention, each load compensator J is by ARM chips, memory FLASH, display screen, communication
Interface and its peripheral circuit are formed.Wherein, communication interface, should including LAN mouthfuls, USB/SD bayonet sockets, I/O mouthfuls, RS232 interfaces etc.
It is responsible for for LAN mouthfuls being communicated with network controller M, Content of Communication includes setting up connection, recorder data is stored during record ripple, during work
Upload load information；RS232 interfaces are used for the debugging that communicated with PC；USB/SD is used for external agency downloading data；I/O mouthfuls is used to connect
Receive load control signal；ARM chips are responsible for the processor function of whole load compensator J；FLASH is used to store load compensator
The ID data and correspondence load-related parameter of J；Display screen is formed by charactron, the work for showing present load compensator J
Make state (standby, data are downloaded, and data are uploaded).
In embodiments of the present invention, quality of power supply intelligent comprehensive optimization device has following several working conditions：
(1) starting state：The upper electricity of UPQC, UPQC completes network controller self-inspection, I/O mouthfuls of state initialization, systematic parameter
Initialization, DC capacitor voltage stabilization, the work such as LAN communication test and load compensator scanning；
(2) the first APF current transformer compensating coefficients：When UPQC self-inspections pass through, and it is not detected by the Voltage Drop scope of setting
When (by single-phase voltage detection as a example by), device is operated in an APF current transformer compensating coefficients.In this case, UPQC be responsible for into
Three parts of voltage stabilization of reactive-load compensation, harmonics restraint and first DC capacitor of the row to loading work；
(3) the 2nd APF current transformer compensating coefficients：Operational module includes DVR current transformers, the 2nd APF current transformers, network control
Device, the second reactor and IGBT power devices.In this case, UPQC is only according to the load characteristic of user, using being solidificated in net
Control strategy (i.e. compensatory algorithm) in network controller carries out the improvement of idle harmonic, including the compensation started for load is consolidated
Change strategy execution, the compensation program curing compensated in program curing and the certain loads course of work that load cuts out.Work as power network
When side occurs Voltage Drop, the 2nd APF current transformer functions switch to passive idle improvement harmonic and administer, and output current is idle defeated
Go out electric current harmonic administer electric current vector and.Now, an APF current transformers only responsible absorption under the control of network controller
Network re-active power, by the voltage stabilization of the first direct current storage capacitance to but be not limited to 800V, for DVR functions are provided constantly
Active support；
(4) passive compensating coefficient：Operational module includes DVR current transformers, an APF current transformers, network controller and IGBT
Power device.In this case, UPQC is passively compensated using DVR current transformers and an APF current transformers, i.e., only by detection
To electrical network parameter passively compensated, load-side load characteristic is not considered；Now the 2nd APF current transformers utilize IGBT reverse two
Pole pipe carries out rectification of deploying to ensure effective monitoring and control of illegal activities, and charges to but be not limited to 500V the second direct current village energy electric capacity, is that system increases reactive power compensation planning；
(5) UPQC active-passives admixture：Operational module includes that DVR current transformers, an APF current transformers, the 2nd APF become
Stream device, network controller, the first reactor, the second reactor and IGBT power devices.In this case, UPQC is to perform passively
State, while take into account the solidification compensation function of system, i.e., if receiving Active Compensation regulating command (such as during passive compensation
When the action such as being loaded with cutting, cut out, load compensator sends a signal to network controller by LAN), then can be passive
Active Compensation state is switched under compensating coefficient, based on the idle harmonic compensation that recorder data be directed to；
(6) the 2nd APF current transformer compensating coefficients under state are fallen：When there is Voltage Drop in grid side, APF functions by
2nd APF current transformers are completed, and now an APF current transformers are only responsible for the first direct current storage capacitance and are provided with power input, are maintained
The DC voltage stability of the electric capacity, the 2nd APF current transformers enter idle harmonic compensating coefficient, and advantage is that can mend voltage
The idle effective shielding produced during DVR function operations is repaid, power system is effectively isolated with DVR；
(7) record involves compensating coefficient：Operational module include DVR current transformers, an APF current transformers, the 2nd APF current transformers,
Network controller, the first reactor, the second reactor, IGBT power devices and multiple load compensators.In this case, UPQC
Compensation function be operated under passive compensating coefficient, network controller carries out record ripple using the 2nd APF current transformers to certain loads.
Record ripple content include load cut, cut out and load etc. normal operating conditions under the conditions of load-side electrical network parameter Changing Pattern.
Load compensator, installed in load-side, when load equipment occurs incision, cuts out action, is born after recorder data loading is completed
Carry compensator and control command is sent to UPQC by local network interface, after UPQC receives the order of load compensator transmission, meeting exists
Start the control strategy based on recorder data in setting time in communication data content, that is, start the record that LAN oral instructions come
Wave number evidence, and performed in UPQC, to compensate the idle harmonic of certain loads generation.
(8) DC voltage holddown：Operational module includes DC voltage suppressor.In this case, UPQC basis
First DC capacitor C1 and the second DC capacitor C2 distinguishes corresponding voltage waveform, reduces the first DC capacitor C1 and the second direct current
The harmonic wave impact of electric capacity C2 difference corresponding voltage waveforms, so that, obtain the more excellent sine waveform of quality.
As shown in figure 3, the present invention also have scene temperature radio alarm unit, scene temperature radio alarm unit, including
Sound light crossing-signal, temp probe and alarm master controller, temp probe are used to detect that quality of power supply intelligent comprehensive optimizes device
Temperature and output temperature signal, described audible-visual annunciator is connected on alarm master controller, the inspection of described temp probe
Survey signal by CAN input be connected to alarm master controller, the master controller to the detection signal of temp probe at
Reason, and control audible-visual annunciator to act, RF transceiver I is also associated with alarm master controller, also include 485 gateway sections
Point, 485 gateway node includes RF transceiver II, serial data communication module, 485 drive circuits, 485 interfaces, described
RF transceiver I and RF transceiver II between less radio-frequency connection, the present embodiment, described RF transceiver I and radio frequency
A ZigBee technology and the IEEE802.15.4 specifications of meeting that transceiver II is preferably produced using Chipcon companies
2.4GHz radio frequency chips, realize the radio communication of the signal between the temperature signal of temp probe and 485 gateway nodes.
In addition, being also associated with LCD display, keyboard interface and memory cell on described master controller.The present embodiment institute
The alarm master controller stated uses the ARM7TDMI-S microcontrollers LPC2368 of NXP companies, and described CAN is preferably used
The CAN of Philips companies models SJA1000.
Implement the embodiment of the present invention, have the advantages that：
1st, in embodiments of the present invention, due to there are two compensation loops in device, in grid side Voltage Drop, the
An APF current transformers in one compensation loop are used for voltage compensation, and the 2nd APF current transformers in the second compensation loop are used for harmonic wave
And reactive-load compensation, so that burning voltage is constant in realizing that loop can be compensated first ensures Voltage Drop compensation effect, and energy
Harmonics and reactive compensation is carried out in the second compensation loop in time；
2nd, in embodiments of the present invention, due to being employed in device and loading one-to-one load compensator, load is mended
Repay the Changing Pattern for being stored with device and being supported under all working state to load-side electrical network parameter, and the network control in device
Device is then previously stored with the backoff algorithm under each load all working state of correspondence, so that the network controller in device
Time delay from be mutated to administering can be reduced, while compensation quality can be improved according to the backoff algorithm for prestoring；
3rd, in embodiments of the present invention, the first DC capacitor is improved due to employing DC voltage fluctuation suppressor in device
With the pulse width of the second DC capacitor, the adverse effect that harmonic voltage brings is reduced, so as to more effectively reduce the first direct current
The DC voltage fluctuation of electric capacity and the second DC capacitor, obtains the more excellent sine waveform of quality.
One of ordinary skill in the art will appreciate that all or part of step in realizing above-described embodiment method can be
The hardware of correlation is instructed to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (7)
1. a kind of quality of power supply intelligent comprehensive for possessing scene temperature radio alarm function optimizes device, it is characterised in that described
Device includes DVR current transformers, an APF current transformers, the 2nd APF current transformers, the first DC capacitor, the second DC capacitor, transformation
Device, the first reactor, the second reactor, network controller, load compensator and DC voltage fluctuation suppressor；Wherein,
The DVR current transformers, the first DC capacitor and an APF current transformers three are in parallel to form the first compensation loop, and described
The one end in the first compensation loop is connected by the transformer from the DVR current transformers side with grid side, and the other end is from described the
One APF current transformers side is connected by first reactor with load-side, during for Voltage Drop in the grid side, is carried out
Voltage compensation, maintains the DC voltage between the DVR current transformers and an APF current transformers constant；
The DVR current transformers, the second DC capacitor and the 2nd APF current transformers three are in parallel to form the second compensation loop, and described
The one end in the second compensation loop is connected by the transformer from the DVR current transformers side with the grid side, and the other end is from institute
State the 2nd APF current transformers side to be connected with the grid side by second reactor, for the no-voltage in the grid side
When falling, harmonic management and reactive-load compensation are carried out；
The load compensator at least one and be connected with the network controller, each load compensator is used to prestore
One is supported under all working state the Changing Pattern formed to load-side electrical network parameter, and according to the load work at present shape
State, corresponding load-side electrical network parameter Changing Pattern and corresponding compensation startup time are sent into the network controller；
Wherein, the working condition includes incision state, cuts out state and normal operating conditions；
The DC voltage fluctuation suppressor is connected with the network controller, for obtaining and corrects first DC capacitor
Distinguish corresponding voltage waveform with second DC capacitor；
The network controller is also connected with the DVR current transformers, an APF current transformers and the 2nd APF current transformers simultaneously, is used for
When the current voltage for detecting the grid side is less than default threshold value, the Voltage Drop of the grid side is determined, start institute
Stating DVR current transformers carries out voltage compensation, and controls an APF current transformers to maintain the voltage of first DC capacitor permanent
Determine, and control the 2nd APF current transformers carry out harmonic management and reactive-load compensation；Or the current of the grid side ought be detected
When voltage is more than default threshold value, determine that the voltage of the grid side, without falling, cuts off the DVR current transformers voltage compensation, and
Controlling an APF current transformers carries out harmonic management and reactive-load compensation, and controls the 2nd APF current transformers to described the
Two DC capacitors charge；And be preset with according to the load-side electrical network parameter Changing Pattern that each load compensator sends it is right
The backoff algorithm answered；
Scene temperature radio alarm unit is also included, the scene temperature radio alarm unit includes audible-visual annunciator, temperature
Probe and alarm master controller, temp probe are used to detect the temperature and output temperature letter of quality of power supply intelligent comprehensive optimization device
Number, described audible-visual annunciator is connected on alarm master controller, and the detection signal of described temp probe is defeated by CAN
Enter to be connected to alarm master controller, the master controller is processed the detection signal of temp probe, and controls audible-visual annunciator
Action, RF transceiver I is also associated with alarm master controller, also includes 485 gateway nodes, and 485 gateway node includes
There are RF transceiver II, serial data communication module, 485 drive circuits, 485 interfaces, described RF transceiver I and radio frequency are received
Less radio-frequency connection, realizes the channel radio of the signal between the temperature signal of temp probe and 485 gateway nodes between hair device II
Letter.
2. device as claimed in claim 1, it is characterised in that each load compensator is by ARM chips, memory
FLASH, display screen, communication interface and its peripheral circuit are formed.
3. device as claimed in claim 1, it is characterised in that the DC voltage fluctuation suppressor includes voltage waveform screening
Unit and voltage waveform revision unit；Wherein,
The voltage waveform screening unit, it is corresponding for obtaining first DC capacitor and second DC capacitor difference
Voltage waveform, and the voltage waveform for getting is distinguished into analog-modulated into corresponding sine waveform, and further screening
The amplitude of sine waveform is unsatisfactory for screening conditions respectively in the first DC capacitor gone out after the simulation and the second DC capacitor
Moment, determine and correspond to each self-sizing in the sine waveform of first DC capacitor and second DC capacitor respectively
The pulse width of moment DC voltage component and each DC voltage component；
The voltage waveform revises unit, the sine wave ripple for obtaining first DC capacitor and second DC capacitor
The numerical value of each self-sizing moment harmonic voltage component is corresponded in shape respectively, and according to the sine waveform of first DC capacitor
In the pulse width and the numerical value of harmonic voltage component of its correspondence screening moment DC voltage component, and second direct current
The sine waveform of appearance is in the pulse width of its correspondence screening moment DC voltage component and the numerical value of harmonic voltage component, difference
Revise the voltage waveform of first DC capacitor and the voltage waveform of second DC capacitor.
4. device as claimed in claim 3, it is characterised in that the voltage waveform revision unit include harmonic wave sampling module,
Harmonic constant revises module and waveform revision module；Wherein,
The harmonic wave sampling module, for the voltage waveform to first DC capacitor and second DC capacitor respective
Screening moment harmonic voltage component is sampled, and determines the sine wave ripple of first DC capacitor and second DC capacitor
Numerical value of the shape in each self-sizing moment harmonic voltage component；
The harmonic constant revises module, in the sine waveform of first DC capacitor, by the same screening moment
On harmonic voltage component values divided by after the pulse width values of DC voltage component and being accumulated as first DC capacitor
Harmonic constant；And in the sine waveform of second DC capacitor, the harmonic voltage component engraved during by same screening
Numerical value is divided by after the pulse width values of DC voltage component and being accumulated as the harmonic constant of second DC capacitor；
The waveform revises module, and first direct current is multiplied by respectively for the harmonic constant by first DC capacitor
The voltage waveform of appearance adjusts the voltage waveform amplitude of first DC capacitor in the waveforms amplitude at its correspondence screening moment；With
And sieved in its correspondence by the voltage waveform that the harmonic constant of second DC capacitor is multiplied by second DC capacitor respectively
The waveforms amplitude at moment is selected to adjust the voltage waveform amplitude of second DC capacitor.
5. device as claimed in claim 4, it is characterised in that：The electricity of the first DC capacitor (C1) and the second DC capacitor (C2)
Component of voltage contained by corrugating is identical, and DC voltage fluctuation is illustrated with voltage waveform V (t) of the first DC capacitor (C1)
Suppress, voltage waveform V (t) is decomposed into DC voltage component, harmonic voltage component and resultant distortion component, is specifically unfolded as follows
Formula (1)：
Wherein, V (t) is the voltage waveform of the first DC capacitor (C1), V0It is the DC voltage component of the first DC capacitor (C1),
I.e. voltage-target, can be a fixed value；It is the harmonic voltage component of the first DC capacitor (C1)；N is humorous
Wave train；P is detection highest order harmonicses number of times；It is harmonic wave initial phase；VψFor the influence of fluctuations of the first DC capacitor C1 is relatively low
Resultant distortion component.
6. device according to claim 5, it is characterised in that：Setting screening moment k, k=1,2...m, wherein, m is arteries and veins
Rush total time in cycle；If hits M=10, then 10 subharmonic of sampling are each harmonic wave plus one are as a group objects
Number, to represent the influence to modulating pulse width, according to formula (2), obtains the corresponding harmonic series of each hits on moment k
Number βik：
Wherein, i is 10, therefore can derive detection highest order harmonicses number of times p >=10；
And according to the corresponding harmonic constant β of each hits for calculatingik, the accumulation of all 10 coefficients is got up, draw first
DC capacitor C1 harmonic constant β on moment kk, i.e.,Further by the first DC capacitor C1 on moment 1-m
The harmonic constant for calculating respectively is added up, and obtains the harmonic constant β of the first DC capacitor C1, i.e.,
Set the voltage waveform amplitude T of the first DC capacitor C1 moment kon(k), by harmonic constant β and the voltage waveform width at k moment
Value TonK () is multiplied, revision k moment voltage waveform amplitudes TonK () is corresponding productThe like, by all of distortion
The voltage waveform amplitude at moment is changed to corresponding product, treat it is all of distortion the moment all compensate after the completion of, by voltage wave
Shape is modulated into sinewave output.
7. device as claimed in claim 1, it is characterised in that the parameter includes the voltage being supported under current operating state
Current-order, PI parameters, filtering parameter harmonic number of times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023249.XA CN106849099A (en) | 2016-11-21 | 2016-11-21 | Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023249.XA CN106849099A (en) | 2016-11-21 | 2016-11-21 | Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849099A true CN106849099A (en) | 2017-06-13 |
Family
ID=59145368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611023249.XA Withdrawn CN106849099A (en) | 2016-11-21 | 2016-11-21 | Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787230A (en) * | 2019-02-26 | 2019-05-21 | 电子科技大学 | A kind of control system for polymorphic power quality controlling device |
| CN110071511A (en) * | 2019-05-09 | 2019-07-30 | 浙江朗松智能电力设备有限公司 | A kind of reactive compensation controlling device and capacitor switching method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221682A (en) * | 2008-01-21 | 2008-07-16 | 徐承东 | Wireless vibration detecting and warning system |
| CN104393599A (en) * | 2014-11-26 | 2015-03-04 | 深圳供电局有限公司 | Uniform power quality regulating device and method |
| CN105244880A (en) * | 2015-10-19 | 2016-01-13 | 深圳供电局有限公司 | Method and system for suppressing direct-current voltage fluctuation of power quality regulator |
-
2016
- 2016-11-21 CN CN201611023249.XA patent/CN106849099A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221682A (en) * | 2008-01-21 | 2008-07-16 | 徐承东 | Wireless vibration detecting and warning system |
| CN104393599A (en) * | 2014-11-26 | 2015-03-04 | 深圳供电局有限公司 | Uniform power quality regulating device and method |
| CN105244880A (en) * | 2015-10-19 | 2016-01-13 | 深圳供电局有限公司 | Method and system for suppressing direct-current voltage fluctuation of power quality regulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787230A (en) * | 2019-02-26 | 2019-05-21 | 电子科技大学 | A kind of control system for polymorphic power quality controlling device |
| CN110071511A (en) * | 2019-05-09 | 2019-07-30 | 浙江朗松智能电力设备有限公司 | A kind of reactive compensation controlling device and capacitor switching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104393599B (en) | A kind of unified power quality adjusting device and method | |
| CN106230257B (en) | A kind of two-way DC converter feedback linearization contragradience sliding-mode control | |
| Wang et al. | Synthesis of variable harmonic impedance in inverter-interfaced distributed generation unit for harmonic damping throughout a distribution network | |
| CN104065336B (en) | A kind of photovoltaic optimizer of integrated data communication function | |
| CN205301505U (en) | Partial discharge detector is wireless trigger of power frequency locking phase for system | |
| CN107994773B (en) | A kind of control method and system of photovoltaic DC-to-AC converter Boost circuit | |
| CN106950512B (en) | Energy storage converter grid-connected and grid-disconnected characteristic integrated detection system and method | |
| CN106849099A (en) | Possesses the quality of power supply intelligent comprehensive optimization device of scene temperature radio alarm function | |
| CN102931660A (en) | Quasi proportional resonance control method and control system for parallel active power filter | |
| Xia et al. | Robust $\mu $-Synthesis Control of Dual LCL Type IPT System Considering Load and Mutual Inductance Uncertainty | |
| CN102883517A (en) | Visual radio frequency impedance matcher | |
| CN105429462B (en) | The control system of the multi-functional grid-connection converter of a kind of twin-stage and method thereof | |
| CN206148953U (en) | Humorous wave mode intelligence power factor controller of low pressure | |
| CN102882225A (en) | Photovoltaic system based plug and play power management system of user side distributed power sources | |
| CN102082464B (en) | Electric energy quality signal generating system for smart grid as well as comprehensive test method | |
| CN107069746A (en) | Possesses the quality of power supply intelligent comprehensive optimization device of scene vibration radio alarm function | |
| CN108258702B (en) | It is a kind of meter and transmission line of electricity distribution capacity grid-connected inverter resonance suppressing method | |
| WO2019037428A1 (en) | Double-layer optimization global synchronous pulse width modulation system and method | |
| CN106849110A (en) | Quality of power supply intelligent comprehensive optimization device with live vibrating alert function | |
| CN107069758A (en) | Quality of power supply intelligent comprehensive optimization device with scene temperature alarm function | |
| CN103812108A (en) | APF (Active Power Filter) control algorithm considering parameter perturbation of grid connected electric reactor | |
| CN106849079A (en) | Quality of power supply on-line checking and robot control system(RCS) and method based on the grid-connected ship of distributed power source | |
| CN106301038A (en) | The control circuit of a kind of Switching Power Supply fixed frequency and control method | |
| CN203326911U (en) | Inverter controller and wind generator system | |
| CN106229982A (en) | Quality of power supply intelligent comprehensive optimizes device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170613 |