CN207475210U - A kind of device for inhibiting inverter parallel system disturbance - Google Patents
A kind of device for inhibiting inverter parallel system disturbance Download PDFInfo
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- CN207475210U CN207475210U CN201721664371.5U CN201721664371U CN207475210U CN 207475210 U CN207475210 U CN 207475210U CN 201721664371 U CN201721664371 U CN 201721664371U CN 207475210 U CN207475210 U CN 207475210U
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Abstract
A kind of device for inhibiting inverter parallel system disturbance, the inverter module being arranged in parallel including at least two, inverter module include inverter main circuit, sample circuit, control circuit.Apparatus structure described in the utility model is simple, the characteristics of realizing conveniently, not only remained original parallel system, but also eliminates simultaneously machine disturbance.Automatic disturbance rejection controller therein can disturb to external synthesis in real time and give corresponding compensation in observation system inside, so as to which automatic disturbance rejection controller be enable to inhibit the deviation because of sampled value in sample circuit to the disturbance caused by electric current, voltage between disturbance and inverter module, so as to which the disturbance for controlling inverter module parallel system is zero.
Description
Technical field
The utility model belongs to inverter disturbance rejection technical field more particularly to a kind of inhibition inverter parallel system disturbance
Device.
Background technology
With the development of information technology, requirement of the user to AC power power supply capacity and power supply reliability also constantly carries
Height, inverter redundant parallel technology are the effective technology means to solve the above problems.
Inverter current sharing control method mainly has master ＆ slave control, droop control, instantaneous Average Current Control and has
Work(power, the control of reactive power share current, the key of above-mentioned current equalizing method are to realize dividing equally for load current, it is ensured that negative
The active power and reactive power of load are distributed evenly in each parallel module that parallel module inversion is controlled to export alternating current
The amplitude of pressure, phase and frequency moment are equal, otherwise will generate active circulation, reactive circular power flow.
Equal Flow Technique using active power, reactive power method is the method controlled based on power averaging, i.e., with active
The reference voltage of power controller and reactive power controller control inverter, keep the output of each inverter active power and
Reactive power is identical, is controlled so as to fulfill dividing equally for load current.It is controlled based on active power, reactive power share current
Method, since its good equal mobility and reliability are widely used in actual industrial.
The inverter parallel device controlled based on active power, reactive power share current used now, works as inverter
It is not right since switching tube saturation voltage drop is inconsistent, driving pulse distributes above and below same bridge arm during using SPWM Technique
The reasons such as claim, the deviation of sampled value in sample circuit can be caused to disturb electric current, voltage band, in addition to this, also inversion mould
The disturbance of disturbance between block, using effect are bad.
Utility model content
The utility model is intended to provide a kind of dress for inhibiting inverter parallel system disturbance simple in structure, using effect is good
It puts.
In order to solve the above technical problems, the utility model provides following technical solution：A kind of inhibition inverter parallel
The device of system disturbance, the inverter module being arranged in parallel including at least two, inverter module include inverter main circuit, sampling electricity
Road, control circuit；
Sample circuit includes inductive current sample circuit and inverter output voltage sample circuit, inductive current sample circuit packet
Include Hall sensor；
Control circuit includes active power and reactive power calculates module, power automatic disturbance rejection controller, lock phase module, sine
Reference wave generation module, voltage automatic disturbance rejection controller, current regulator module and drive module, active power and wattless power meter
Two input terminals for calculating module connect the signal output end and inverter output voltage of Hall current sensor in sample circuit respectively
The signal output end of sample circuit, two input terminals of power automatic disturbance rejection controller are connected separately with work(power and wattless power meter
Two output terminals of module are calculated, other two input terminal of power automatic disturbance rejection controller connects average active power generation mould respectively
Block and average reactive power generation module；The of the output terminal connection sinusoid fiducial wave generation module of power automatic disturbance rejection controller
3rd, the 4th input terminal；The signal input part connection synchronous bus of phase module is locked, locks the sinusoidal base of signal output end connection of phase module
Second input terminal of quasi wave generation module；The first input end connection voltage magnitude reference value setting of sinusoid fiducial wave generation module
Module；The output terminal of sinusoid fiducial wave generation module is connected to the first input end of voltage automatic disturbance rejection controller；Voltage active disturbance rejection
Second input terminal of controller is connected with inverter output voltage sample circuit, the output terminal connection electric current of voltage automatic disturbance rejection controller
The first input end of adjustor module, the signal output of the second input terminal connection Hall current sensor of current regulator module
End；The input terminal of the output terminal connection drive module of current regulator module, the output terminal of drive module drive the first power tube
With the conducting and shutdown of the second power tube.
Power automatic disturbance rejection controller includes the first subtraction comparator, the first Nonlinear Tracking Differentiator, the second subtraction comparator, third
Subtraction comparator, linear condition error feedback, the 4th subtraction comparator, generator rotor angle converter, the first compensating factor, second compensation because
Son, the first extended mode observer ESO, the 5th subtraction comparator, the second Nonlinear Tracking Differentiator, the 6th subtraction comparator, the 7th subtract
Method comparator, third compensating factor, reactive voltage converter, the 4th compensating factor, the second extended mode observer ESO；
Average active power generation module connects the positive polarity input terminal of the first subtraction comparator；Active power calculates module and connects
The negative polarity input terminal of first subtraction comparator, the output terminal of the first subtraction comparator connect the input of the first Nonlinear Tracking Differentiator
End, first, second output terminal of the first Nonlinear Tracking Differentiator connect the positive polarity input terminal and third of the second subtraction comparator respectively
The positive polarity input terminal of subtraction comparator, the first extended mode observer ESO of negative polarity input termination of the second subtraction comparator
The first output terminal；The first input end of the output end wiring state error ultramagnifier of second subtraction comparator, third subtraction
The negative polarity input terminal of comparator connects the second output terminal of the first extended mode observer ESO；Third subtraction comparator it is defeated
Second input terminal of outlet connection linear condition error feedback, the output of linear condition error feedback terminate the 4th subtraction comparator
Positive polarity input terminal；The output terminal of negative polarity input the first compensating factor of termination of 4th subtraction comparator, the 4th subtraction ratio
Compared with the first input end of the output termination generator rotor angle converter of device, the second input terminal connection reactive power of generator rotor angle converter calculates mould
Block, the output of generator rotor angle converter connect the third input terminal of sinusoid fiducial wave generation module；The output terminal of generator rotor angle converter is also connected with
The first input end of first extended mode observer ESO；Second the second compensation of input termination of first extended mode observer ESO
The output terminal of the factor, the output terminal of input the 4th subtraction comparator of termination of the second compensating factor；First extended mode observer
The input terminal of third output the first compensating factor of termination of ESO；
Average reactive power generation module connects the positive polarity input terminal of the 5th subtraction comparator；Reactive power calculates module
Connect the negative polarity input terminal of the 5th subtraction comparator, the input of output the second Nonlinear Tracking Differentiator of connection of the 5th subtraction comparator
End, first, second output terminal of the second Nonlinear Tracking Differentiator connect the positive polarity input terminal and the 7th of the 6th subtraction comparator respectively
The positive polarity input terminal of subtraction comparator, the second extended mode observer ESO of negative polarity input termination of the 6th subtraction comparator
The first output terminal；The first input end of the output end wiring state error ultramagnifier of 6th subtraction comparator, the 7th subtraction
Comparator negative polarity input terminal connects the second output terminal of the second extended mode observer ESO；The output of 7th subtraction comparator
The second input terminal of linear condition error feedback is connected, the 8th subtraction comparator of output termination of linear condition error feedback is just
Polarity input terminal；The output terminal of the negative polarity input termination third compensating factor of 8th subtraction comparator, the 8th subtraction comparator
Output termination reactive voltage converter first input end, reactive voltage converter second input be terminated with work(power generation
Module, the 4th input terminal of the output terminal connection sinusoid fiducial wave generation module of reactive voltage converter；Reactive voltage converter
Output terminal be also connected with the first input end of the second extended mode observer ESO；The second of second extended mode observer ESO is defeated
Enter the output terminal of the 4th compensating factor of termination, the output terminal of input the 8th subtraction comparator of termination of the 4th compensating factor；Second
The input terminal of the third output termination third compensating factor of extended mode observer ESO.
Voltage automatic disturbance rejection controller includes voltage extended mode observer ESO, voltage-tracing differentiator, voltage regulation one and subtracts
Method comparator, two subtraction comparator of voltage regulation, voltage linear state error feedback, one compensating factor of voltage regulation, voltage regulation three subtract
Method comparator, two compensating factor of voltage regulation；The first input end connection sinusoid fiducial wave generation module of voltage-tracing differentiator；Electricity
Press the second input terminal of the first output terminal connection one subtraction comparator of voltage regulation of Nonlinear Tracking Differentiator, the of voltage-tracing differentiator
Two output terminals connect the second input terminal of two subtraction comparator of voltage regulation, the first input end connection of one subtraction comparator of voltage regulation
The first output terminal of voltage extended mode observer ESO；The first input end connection voltage extension of two subtraction comparator of voltage regulation
The second output terminal of state observer ESO；The output terminal difference of two subtraction comparator of one subtraction comparator of voltage regulation and voltage regulation
Connect two input terminals of voltage linear state error feedback, the output terminal connection voltage regulation three of voltage linear state error feedback
The first input end of subtraction comparator；Voltage extended mode observer ESO third output terminal connection voltage regulation one compensation because
Son, the second input terminal of the signal output end connection three subtraction comparator of voltage regulation of one compensating factor of voltage regulation；Voltage regulation three subtracts
The first output terminal connection two compensating factor of voltage regulation of method comparator, the output terminal connection voltage extension of two compensating factor of voltage regulation
The feedback input end of state observer ESO；The second output terminal of three subtraction comparator of voltage regulation is connected by voltage filter module
Current regulator module, another input terminal connection inverter output voltage sample circuit of voltage filter module.
The signal output end of average active power generation module and average reactive power generation module is all connected with CAN bus,
Average active power and average reactive power are transferred to two inputs of power automatic disturbance rejection controller by signal wire by CAN bus
End.
Inverter main circuit includes the first derided capacitors, the second derided capacitors, the first power tube, the second power tube, filtered electrical
Sense and filter capacitor；The negative polarity end of first derided capacitors is connected with the positive ends of the second derided capacitors, the first power tube
Source electrode and the collector of the second power tube be connected, the collector of the positive ends of the first derided capacitors and the first power tube connects
It connects；The negative polarity end of second derided capacitors is connected with the source electrode of the second power tube；Filter inductance one end connects the first power tube
Source electrode, filter inductance other end connect one end of filter capacitor, and the other end of filter capacitor connects the first derided capacitors
Negative polarity end；The both ends of filter capacitor are connected to after being connected on ac bus.
There are two the inverter module is common.
By above technical scheme, the beneficial effects of the utility model are：Apparatus structure described in the utility model is simple,
The characteristics of realizing conveniently, not only having remained original parallel system, but also eliminate simultaneously machine disturbance.Automatic disturbance rejection controller therein can be real
When observation system inside with it is external it is comprehensive disturb and give corresponding compensation, so as to which automatic disturbance rejection controller be enable to inhibit because sampling
The deviation of sampled value is to the disturbance caused by electric current, voltage between disturbance and inverter module in circuit, so as to control inversion
The disturbance of wired in parallel system is zero.
Description of the drawings
Fig. 1 is the utility model circuit diagram；
Fig. 2 is power automatic disturbance rejection controller structure diagram；
Fig. 3 is voltage automatic disturbance rejection controller structure diagram.
Specific embodiment
A kind of device for inhibiting inverter parallel system disturbance, as depicted in figs. 1 and 2, is arranged in parallel including at least two
Inverter module, inverter module described in the present embodiment altogether there are two, the structure of two of which inverter module is identical.
Each inverter module has independent power automatic disturbance rejection controller GKR 1 and voltage automatic disturbance rejection controller in this system
YKR 1, power automatic disturbance rejection controller GKR 1 and voltage automatic disturbance rejection controller YKR 1 pass through inside observation system and outside
It is comprehensive to disturb and give corresponding compensation, so as to which the disturbance for controlling this system is zero.It is real since each inverter module is independent control
The decoupling in the system disturbance inhibition of the more inverter modules of this system is showed, control method is simple, reliably, is easy to Project Realization.
Two inverter modules include inverter main circuit, sample circuit, control circuit.
Inverter main circuit includes the first derided capacitors C11, the second derided capacitors C12, the first power tube V1, the second power tube
V2, filter inductance L1 and filter capacitor C13.
The negative polarity end of first derided capacitors C11 is connected with the positive ends of the second derided capacitors C12, the first power tube
The collector of the source electrode of V1 and the second power tube V2 are connected, the positive ends and the first power tube V1 of the first derided capacitors C11
Collector connection；The negative polarity end of second derided capacitors C12 is connected with the source electrode of the second power tube V2；Filter inductance L1 one end
The source electrode of the first power tube V1 is connected, filter inductance L1 other ends connect one end of filter capacitor C13, filter capacitor C13's
Other end connects the negative polarity end of the first derided capacitors C11；The both ends of filter capacitor C13 are connected to ac bus after being connected
On, load R is parallel on ac bus.
Sample circuit includes inductive current sample circuit and inverter output voltage sample circuit YCY1, inductive current sampling electricity
Road includes the Hall current sensor LCY1 being set between the source electrode of the first power tube V1 and filter inductance L1；Inverter output voltage
The input terminal of sample circuit YCY1 is connected to the both ends of filter capacitor C13.
Control circuit includes active power and reactive power calculates module J S1, power automatic disturbance rejection controller GKR 1, lock phase
Module PLL, sinusoid fiducial wave generation module ZX1, voltage automatic disturbance rejection controller YKR 1, current regulator module TJ 1 and driving
Module PWM1.
Two input terminals that active power and reactive power calculate module J S1 connect Hall current sensor LCY1's respectively
The signal output end of signal output end and inverter output voltage sample circuit YCY1, two of power automatic disturbance rejection controller GKR 1
Input terminal is connected separately with work(power and reactive power calculates two output terminals of module J S1, power automatic disturbance rejection controller GKR 1
Other two input terminal connect average active power generation module and average reactive power generation module respectively, average wattful power
Rate generation module and average reactive power generation module are that the prior art is not shown in the diagram.Wherein, average active power is given birth to
Signal output end into module and average reactive power generation module is all connected with CAN bus, and CAN bus will be average by signal wire
Active power and average reactive power are transferred to power automatic disturbance rejection controller GKR 1.
The third of the output terminal connection sinusoid fiducial wave generation module ZX1 of power automatic disturbance rejection controller GKR 1, the 4th input
End；The signal input part of lock phase module PLL is connected to synchronous bus TB by signal wire, and synchronous bus TB is in parallel two
Genlock between inverter module.
Lock the second input terminal of the signal output end connection sinusoid fiducial wave generation module ZX1 of phase module PLL；Sinusoid fiducial
The first input end connection voltage magnitude reference value setting module of wave generation module ZX1, voltage magnitude reference value setting module are
Existing technology.The output terminal of sinusoid fiducial wave generation module ZX1 is connected to the first input of voltage automatic disturbance rejection controller YKR 1
End；The second input terminal of voltage automatic disturbance rejection controller YKR 1 is connected with inverter output voltage sample circuit YCY1, voltage active disturbance rejection
The first input end of the output terminal connection current regulator module TJ 1 of controller YKR 1, the of current regulator module TJ 1
The signal output end of two input terminals connection Hall current sensor LCY1；The output terminal connection driving of current regulator module TJ 1
The input terminal of module PWM1, conducting and the pass of output terminal driving the first power tube V1 and the second power tube V2 of drive module PWM1
It is disconnected.In each inverter module original power governor is substituted with power automatic disturbance rejection controller, voltage automatic disturbance rejection controller respectively
And voltage regulator, the circuit structure of the Disturbance Rejection circuit of each inverter module are identical.Each inverter module is by substituting
Automatic disturbance rejection controller observation system inside with external comprehensive disturbance and giving corresponding compensation, so as to control inverter parallel system
The disturbance of system is zero.
Wherein, as shown in Fig. 2, power automatic disturbance rejection controller GKR 1, which includes the first subtraction comparator 1, first, tracks differential
Device 2, the second subtraction comparator 3, third subtraction comparator 4, linear condition error feed back the 5, the 4th subtraction comparator 6, generator rotor angle turns
Parallel operation 7, the first compensating factor 8, the second compensating factor 9, the first extended mode observer ESO10, the 5th subtraction comparator 11,
Two Nonlinear Tracking Differentiators 12, the 6th subtraction comparator 13, the 7th subtraction comparator 14, linear condition error ultramagnifier the 15, the 8th subtract
Method comparator 16, reactive voltage converter 17, third compensating factor 18, the 4th compensating factor 19, the second extended mode observer
ESO 20。
Average active power generation module connects the positive polarity input terminal of the first subtraction comparator 1；Active power calculates mould
Block connects the negative polarity input terminal of the first subtraction comparator 1, and the output terminal of the first subtraction comparator connects the first Nonlinear Tracking Differentiator 2
Input terminal, first, second output terminal of the first Nonlinear Tracking Differentiator 2 connects the positive polarity input of the second subtraction comparator 3 respectively
End and the positive polarity input terminal of third subtraction comparator 4.
The first output terminal of the first extended mode observer ESO10 of negative polarity input termination of second subtraction comparator 3；The
The first input end of the output end wiring state error ultramagnifier 5 of two subtraction comparators 3, the cathode of third subtraction comparator 4
Property input terminal connect the first extended mode observer ESO10 second output terminal；The output terminal connecting line of third subtraction comparator 4
Property state error feedback 5 the second input terminal, linear condition error feedback 5 output termination the 4th subtraction comparator 6 anode
Property input terminal；The output terminal of negative polarity input the first compensating factor 8 of termination of 4th subtraction comparator 6, the 4th subtraction comparator 6
Output termination generator rotor angle converter 7 first input end, the second input termination wattless power meter of generator rotor angle converter 7 calculates module,
The output of generator rotor angle converter 7 connects the third input terminal of sinusoid fiducial wave generation module ZX1.
The output terminal of generator rotor angle converter 7 is also connected with the first input end of the first extended mode observer ESO10；First extension
The output terminal of second input the second compensating factor 9 of termination of state observer ESO10, the input termination the of the second compensating factor 9
The output terminal of four subtraction comparators 6.The third output of first extended mode observer ESO10 terminates the defeated of the first compensating factor 8
Enter end.
Average reactive power generation module connects the positive polarity input terminal of the 5th subtraction comparator 11；Reactive power calculates mould
Block connects the negative polarity input terminal of the 5th subtraction comparator 11, and the output of the 5th subtraction comparator 11 connects the second Nonlinear Tracking Differentiator 12
Input terminal, the positive polarity that first, second output terminal of the second Nonlinear Tracking Differentiator 12 connects the 6th subtraction comparator 13 respectively is defeated
Enter the positive polarity input terminal of end and the 7th subtraction comparator 14.
The first output terminal of the second extended mode observer ESO20 of negative polarity input termination of 6th subtraction comparator 13；
The first input end of the output end wiring state error ultramagnifier 15 of 6th subtraction comparator 13, the 7th subtraction comparator 14
Negative polarity input terminal connect the second extended mode observer ESO 20 second output terminal；The output of 7th subtraction comparator 14
The second input terminal of linear condition error feedback 15 is connected, the output of linear condition error feedback 15 terminates the 8th subtraction comparator
16 positive polarity input terminal.
The output terminal of the negative polarity input termination third compensating factor 18 of 8th subtraction comparator 16, the 8th subtraction comparator
The first input end of 16 output termination reactive voltage converter 17, the second input of reactive voltage converter 17 are terminated with work(work(
Rate generation module, the output of reactive voltage converter 17 connect the 4th input terminal of sinusoid fiducial wave generation module ZX1.
The output terminal of reactive voltage converter 17 is also connected with the first input end of the second extended mode observer ESO20；The
Two extended mode observer ESO20 second input termination the 4th compensating factor 19 output terminal, the 4th compensating factor 19 it is defeated
Enter the output terminal of the 8th subtraction comparator 16 of termination.The third output termination third compensation of second extended mode observer ESO20
The input terminal of the factor 18.
As shown in figure 3, voltage automatic disturbance rejection controller YKR 1 includes voltage extended mode observer ESO 21, voltage-tracing
Differentiator 22, one subtraction comparator 23 of voltage regulation, two subtraction comparator 24 of voltage regulation, voltage linear state error feedback LSEF
25th, one compensating factor module 26 of voltage regulation, three subtraction comparator 27 of voltage regulation, two compensating factor module 28 of voltage regulation, voltage filter
Wave module 29.
The first input end connection sinusoid fiducial wave generation module of voltage-tracing differentiator 22, voltage-tracing differentiator 22
The first output terminal connection one subtraction comparator 23 of voltage regulation the second input terminal, the second output terminal of voltage-tracing differentiator 22
Connect the second input terminal of two subtraction comparator 24 of voltage regulation.The first input end connection voltage of one subtraction comparator 23 of voltage regulation
The first output terminal of extended mode observer ESO21.The first input end connection voltage extension of two subtraction comparator 24 of voltage regulation
The second output terminal of state observer ESO21.
The output terminal of two subtraction comparator 24 of one subtraction comparator 23 of voltage regulation and voltage regulation connects pressure-wire character respectively
State error feeds back two input terminals of LSEF25, and the output terminal connection voltage regulation three of voltage linear state error feedback LSEF25 subtracts
The first input end of method comparator 27；Voltage extended mode observer ESO21 third output terminal connection voltage regulation one compensation because
Submodule 26, the second input of the signal output end connection three subtraction comparator 27 of voltage regulation of one compensating factor module 26 of voltage regulation
End.Three subtraction comparator 27 of voltage regulation the first output terminal connection two compensating factor module 28 of voltage regulation, voltage regulation two compensation because
The feedback input end of the output terminal connection voltage extended mode observer ESO21 of submodule 28, three subtraction comparator 27 of voltage regulation
Second output terminal pass through voltage filter module 29 connect current regulator module TJ1, another input of voltage filter module 29
End connection inverter output voltage sample circuit YCY1.
Since power automatic disturbance rejection controller GKR 1 and voltage automatic disturbance rejection controller YKR 1 can be in real time inside observation system
It is disturbed to external synthesis and gives corresponding compensation, so as to which power automatic disturbance rejection controller, voltage automatic disturbance rejection controller be enable to press down
Make because sampled value in sample circuit deviation to caused by electric current, voltage disturbance and the second inverter module to the first inversion mould
The disturbance of block, so as to which the disturbance for controlling inverter module parallel system is zero.
Apparatus structure described in the utility model is simple, the characteristics of realizing conveniently, not only remained original parallel system, but also disappears
In addition to simultaneously machine disturbance.
Claims (6)
1. a kind of device for inhibiting inverter parallel system disturbance, it is characterised in that：The inversion being arranged in parallel including at least two
Module, inverter module include inverter main circuit, sample circuit, control circuit；
Sample circuit includes inductive current sample circuit and inverter output voltage sample circuit, and inductive current sample circuit is included suddenly
That sensor；
Control circuit includes active power and reactive power calculates module, power automatic disturbance rejection controller, lock phase module, sinusoid fiducial
Wave generation module, voltage automatic disturbance rejection controller, current regulator module and drive module, active power and reactive power calculate mould
Two input terminals of block connect the signal output end of Hall current sensor and inverter output voltage sampling in sample circuit respectively
The signal output end of circuit, two input terminals of power automatic disturbance rejection controller are connected separately with work(power and reactive power calculates mould
Two output terminals of block, other two input terminal of power automatic disturbance rejection controller connect respectively average active power generation module and
Average reactive power generation module；The third of the output terminal connection sinusoid fiducial wave generation module of power automatic disturbance rejection controller, the
Four input terminals；The signal input part connection synchronous bus of phase module is locked, locks the signal output end connection sinusoid fiducial wave of phase module
Second input terminal of generation module；The first input end connection voltage magnitude reference value setting mould of sinusoid fiducial wave generation module
Block；The output terminal of sinusoid fiducial wave generation module is connected to the first input end of voltage automatic disturbance rejection controller；Voltage active disturbance rejection control
Second input terminal of device processed is connected with inverter output voltage sample circuit, the output terminal connection electric current tune of voltage automatic disturbance rejection controller
Save the first input end of device module, the signal output of the second input terminal connection Hall current sensor of current regulator module
End；The input terminal of the output terminal connection drive module of current regulator module, the output terminal of drive module drive the first power tube
With the conducting and shutdown of the second power tube.
2. inhibit the device of inverter parallel system disturbance as described in claim 1, it is characterised in that：Power Active Disturbance Rejection Control
Device, which includes the first subtraction comparator, the first Nonlinear Tracking Differentiator, the second subtraction comparator, third subtraction comparator, linear condition, to be missed
Poor feedback, the 4th subtraction comparator, generator rotor angle converter, the first compensating factor, the second compensating factor, the first extended mode observer
ESO, the 5th subtraction comparator, the second Nonlinear Tracking Differentiator, the 6th subtraction comparator, the 7th subtraction comparator, third compensating factor,
Reactive voltage converter, the 4th compensating factor, the second extended mode observer ESO；
Average active power generation module connects the positive polarity input terminal of the first subtraction comparator；Active power calculates module and connects first
The negative polarity input terminal of subtraction comparator, the output terminal of the first subtraction comparator connect the input terminal of the first Nonlinear Tracking Differentiator, the
First, second output terminal of one Nonlinear Tracking Differentiator connects the positive polarity input terminal of the second subtraction comparator and third subtraction ratio respectively
Compared with the positive polarity input terminal of device, the negative polarity input of the second subtraction comparator terminates the first of the first extended mode observer ESO
Output terminal；The first input end of the output end wiring state error ultramagnifier of second subtraction comparator, third subtraction comparator
Negative polarity input terminal connect the first extended mode observer ESO second output terminal；The output terminal of third subtraction comparator connects
Connect the second input terminal of linear condition error feedback, the anode of output the 4th subtraction comparator of termination of linear condition error feedback
Property input terminal；The output terminal of negative polarity input the first compensating factor of termination of 4th subtraction comparator, the 4th subtraction comparator
The first input end of output termination generator rotor angle converter, the second input terminal connection reactive power of generator rotor angle converter calculate module, work(
The output of angle converter connects the third input terminal of sinusoid fiducial wave generation module；The output terminal of generator rotor angle converter is also connected with the first expansion
Open up the first input end of state observer ESO；Second input the second compensating factor of termination of first extended mode observer ESO
Output terminal, the output terminal of input the 4th subtraction comparator of termination of the second compensating factor；The of first extended mode observer ESO
The input terminal of three output the first compensating factors of termination；
Average reactive power generation module connects the positive polarity input terminal of the 5th subtraction comparator；Reactive power calculates module connection
The negative polarity input terminal of 5th subtraction comparator, the input terminal of output the second Nonlinear Tracking Differentiator of connection of the 5th subtraction comparator,
First, second output terminal of the second Nonlinear Tracking Differentiator connects the positive polarity input terminal and the 7th subtraction of the 6th subtraction comparator respectively
The positive polarity input terminal of comparator, the of the second extended mode observer ESO of negative polarity input termination of the 6th subtraction comparator
One output terminal；The first input end of the output end wiring state error ultramagnifier of 6th subtraction comparator, the 7th subtraction compare
Device negative polarity input terminal connects the second output terminal of the second extended mode observer ESO；The output connection of 7th subtraction comparator
Second input terminal of linear condition error feedback, the positive polarity of output the 8th subtraction comparator of termination of linear condition error feedback
Input terminal；8th subtraction comparator negative polarity input termination third compensating factor output terminal, the 8th subtraction comparator it is defeated
Go out to terminate the first input end of reactive voltage converter, the second input of reactive voltage converter is terminated with work(power generation mould
Block, the 4th input terminal of the output terminal connection sinusoid fiducial wave generation module of reactive voltage converter；Reactive voltage converter
Output terminal is also connected with the first input end of the second extended mode observer ESO；The second input of second extended mode observer ESO
Terminate the output terminal of the 4th compensating factor, the output terminal of input the 8th subtraction comparator of termination of the 4th compensating factor；Second expands
Open up the input terminal of the third output termination third compensating factor of state observer ESO.
3. inhibit the device of inverter parallel system disturbance as claimed in claim 1 or 2, it is characterised in that：Voltage active disturbance rejection
Controller includes voltage extended mode observer ESO, voltage-tracing differentiator, one subtraction comparator of voltage regulation, voltage regulation two and subtracts
Method comparator, voltage linear state error feedback, one compensating factor of voltage regulation, three subtraction comparator of voltage regulation, voltage regulation two are mended
Repay the factor；The first input end connection sinusoid fiducial wave generation module of voltage-tracing differentiator；The first of voltage-tracing differentiator
Output terminal connects the second input terminal of one subtraction comparator of voltage regulation, the second output terminal connection voltage regulation of voltage-tracing differentiator
Second input terminal of two subtraction comparators, the first input end connection voltage extended mode observer of one subtraction comparator of voltage regulation
The first output terminal of ESO；The of the first input end connection voltage extended mode observer ESO of two subtraction comparator of voltage regulation
Two output terminals；The output terminal of two subtraction comparator of one subtraction comparator of voltage regulation and voltage regulation connects voltage linear state mistake respectively
Two input terminals of difference feedback, the first of the output terminal connection three subtraction comparator of voltage regulation of voltage linear state error feedback are defeated
Enter end；Third output terminal connection one compensating factor of voltage regulation of voltage extended mode observer ESO, one compensating factor of voltage regulation
Signal output end connection three subtraction comparator of voltage regulation the second input terminal；First output terminal of three subtraction comparator of voltage regulation
Connect two compensating factor of voltage regulation, the feedback of the output terminal connection voltage extended mode observer ESO of two compensating factor of voltage regulation
Input terminal；The second output terminal of three subtraction comparator of voltage regulation connects current regulator module, voltage by voltage filter module
Another input terminal connection inverter output voltage sample circuit of filter module.
4. inhibit the device of inverter parallel system disturbance as claimed in claim 3, it is characterised in that：Average active power is given birth to
Signal output end into module and average reactive power generation module is all connected with CAN bus, and CAN bus will be average by signal wire
Active power and average reactive power are transferred to two input terminals of power automatic disturbance rejection controller.
5. inhibit the device of inverter parallel system disturbance as claimed in claim 4, it is characterised in that：Inverter main circuit includes
First derided capacitors, the second derided capacitors, the first power tube, the second power tube, filter inductance and filter capacitor；First partial pressure electricity
The negative polarity end of appearance is connected with the positive ends of the second derided capacitors, the current collection of the source electrode of the first power tube and the second power tube
Pole is connected, and the positive ends of the first derided capacitors are connected with the collector of the first power tube；The negative polarity of second derided capacitors
End is connected with the source electrode of the second power tube；Filter inductance one end connects the source electrode of the first power tube, and filter inductance other end connects
One end of filter capacitor is connect, the other end of filter capacitor connects the negative polarity end of the first derided capacitors；The both ends of filter capacitor
It is connected on ac bus after being connected.
6. inhibit the device of inverter parallel system disturbance as claimed in claim 5, it is characterised in that：The inverter module has
Two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721664371.5U CN207475210U (en) | 2017-12-04 | 2017-12-04 | A kind of device for inhibiting inverter parallel system disturbance |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107706944A (en) * | 2017-12-04 | 2018-02-16 | 河南城建学院 | A kind of device for suppressing inverter parallel system disturbance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706944A (en) * | 2017-12-04 | 2018-02-16 | 河南城建学院 | A kind of device for suppressing inverter parallel system disturbance |
| CN107706944B (en) * | 2017-12-04 | 2023-06-09 | 河南城建学院 | Device for inhibiting disturbance of inverter parallel system |
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