CN109728585A - Based on fuzzy control rule factor electric power spring, power supply circuit construction and algorithm - Google Patents
Based on fuzzy control rule factor electric power spring, power supply circuit construction and algorithm Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
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Abstract
The present invention relates to one kind to be based on fuzzy control rule factor electric power spring, including governor circuit, control switch circuit, pressure regulation inverter circuit, filter circuit, reactive power compensation fling-cut switch, charge-discharge control circuit, voltage transformer, current transformer, compensation capacitor group, reactor group and battery group, compensation capacitor group and reactor group pass through filter circuit respectively and reactive power compensation fling-cut switch is electrically connected, battery group is electrically connected by charge-discharge control circuit and pressure regulation inverter circuit, pressure regulation inverter circuit separately passes through filter circuit and connect with control switch circuit electrical.One aspect of the present invention greatly simplifies and has standardized circuit structure and circuit connecting relation, convenient for improving circuit, maintenance, the working efficiency for managing operation and reducing job costs, another aspect electric power spring equipment is strong to circuit compensation regulating power, operation control precision is high, and can effectively realize and carry out the compensation of the multiple parameters such as voltage, electric current and power factor to power grid.
Description
Technical field
The present invention relates to a kind of compensation of electrical power and circuit arrangement structure and control preventions, belong to power transmission and transforming equipment technology neck
Domain.
Background technique
In micro-capacitance sensor or power distribution network, voltage ripple of power network is extremely frequent, especially in micro-capacitance sensor, renewable energy
The ratio produced electricl energy is gradually increasing, and the intermittence of renewable energy can cause voltage ripple of power network, although large-scale power grid for
Fluctuation has certain capacity of self-regulation, but but very weak by the regulating power of the micro-capacitance sensor of regenerative resource power supply, for
For certain electrical equipments, the fluctuation of voltage can have adverse effect on it, can even damage to voltage pole under serious conditions
Its sensitive crucial electrical equipment, for example within the hospital, for monitoring the Medical Devices of patient condition, have for input voltage
Very strict requirement, the voltage fluctuation of over range will will lead to the operation troubles of equipment, or even can cause to judge by accident to doctor, danger
And the life of patient.As the following renewable energy produces electricl energy being gradually increasing for ratio and popularizing for micro-capacitance sensor, voltage fluctuation
It will become more common.
Therefore, the Xu Shuyuan professor team of Hong Kong University proposes a kind of device that can stabilize critical loads voltage fluctuation,
The concept amplification of physics spring to field of power electronics, referred to as electric power spring how much energy of load-side consumption electric energy is made by it
It is enough to be changed according to the variation of grid side generated energy, traditional power grid electric energy supply model is changed, the intermittence of renewable energy is made
Problem is readily solved.
But at present in document involved associate power spring controller design, also all rest on Traditional control substantially
Theoretical field, need first to supplied comprising power grid, the circuit mould of circuit load type, circuit portions parameter and inverter parameters
Type carries out modeling analysis, then calculate and then obtain the design parameter of controller, such as PID control and quasi- PR control, still,
To with electric power spring in real life application for, realize simultaneously it is unrealistic because its can not using when all carry out reality
Suitable controller parameter is calculated in the parameter of circuit, moreover, in actual production life, certain circuit parameters are to be difficult to measure
Or the either time-varying being unable to measure, the drawbacks of such traditional controller, just display.
Therefore it is directed to this status, there is an urgent need to develop a kind of completely new electric power spring equipments and its control method, with full
The needs actually used enough.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides one kind based on bionic invention explosion proof door, the invention
More traditional circuit system for being provided with electric power spring-compensating, on the one hand greatly simplifies and has standardized circuit structure and circuit connects
Relationship is connect, convenient for improving circuit, maintenance, the working efficiency for managing operation and reducing job costs, another aspect electric power spring is set
Standby strong to circuit compensation regulating power, operation control precision is high, and can effectively realize to power grid carry out voltage, electric current and power because
The multiple parameters such as number compensation, to also greatly improve network system operation while effectively ensuring that electrical equipment is stable
Stability and reliability.
To achieve the goals above, the present invention is to realize by the following technical solutions:
Based on fuzzy control rule factor electric power spring, including governor circuit, control switch circuit, pressure regulation inverter circuit,
Filter circuit, reactive power compensation fling-cut switch, charge-discharge control circuit, voltage transformer, current transformer, compensation capacitor
Group, reactor group and battery group, compensation capacitor group, reactor group and battery group at least one, and it is parallel with one another,
Middle compensation capacitor group and reactor group pass through filter circuit respectively and reactive power compensation fling-cut switch is electrically connected, battery
Group is electrically connected by charge-discharge control circuit and pressure regulation inverter circuit, and pressure regulation inverter circuit separately passes through filter circuit and opens with control
The electrical connection of powered-down road, governor circuit respectively with control switch circuit, reactive power compensation fling-cut switch, voltage transformer, electricity
Current transformer electrical connection, and voltage transformer, current transformer are several, each voltage transformer and a current transformer
Constitute a detection group, and institute's detection group at least three, it is parallel with one another between each detection group and be electrically connected respectively with governor circuit.
Further, the control switch circuit includes at least four groups based on the switching circuit based on thyristor, and
It is respectively parallel with one another based on the switching circuit based on thyristor.
Further, based on the governor circuit is based on any one in industrial single-chip microcontroller, programmable controller
Circuit system, and the control circuit separately sets data communication bus module and time circuit module.
Based on the power supply circuit of fuzzy control rule factor electric power spring, including power grid, bus, key load, non-pass
Keyness load and be based on fuzzy control rule factor electric power spring, wherein it is key load, it is nonessential load at least one,
And a key load and at least one nonessential load constitute a working group, parallel with one another, key between each working group
Property load nonessential load between it is parallel with one another, and be electrically connected by bus and power grid, one set in working group based on mould
Paste control rule factor electric power spring, based on fuzzy control rule factor electric power spring and each nonessential load in series, and with
Key load is in parallel, and is thrown based on fuzzy control rule factor electric power spring by control switch circuit, reactive power compensation
It cuts to close and be electrically connected respectively with bus, voltage transformer, current transformer based on fuzzy control rule factor electric power spring
It is electrically connected respectively with side bus outside working group, and in parallel with control switch circuit, reactive power compensation fling-cut switch.
Wherein, the key load 104 is that electricity consumption of the working voltage surge requirements no more than voltage rating ± 2% is set
It is standby；The nonessential load 105 is the electrical equipment with wider voltage range of operation, such as pot-type boiler, electric light, sky
The equipment such as tune.
Further, it in the working group, is electrically connected to each other between each working group by series and parallel circuit.
Further, in the working group, pass through series and parallel circuit electricity between each nonessential load in same working group
Gas connection, and if only if concatenated each nonessential load is based on one when multiple nonessential loads are under series connection
The series connection of fuzzy control rule factor electric power spring.
Power supply circuit based on fuzzy control rule factor electric power spring and based on fuzzy control rule factor electric power spring
In fuzzy control rule factor algorithm include:
On the one hand control rule factor based on fuzzy control rule factor electric power spring is set as by S1, parameter setting
On the other hand α sets specified rate Uref and critical loads voltage Ucl makes the difference generation error signal e；And it is fuzzy control rule
Factor electric power spring include in the data operation area of governor circuit pre-generatmg rule factor α fuzzy controller and adjustable rule because
Submodule fuzzy controllers；
S2, data analysis, the bus data that voltage transformer, current transformer detect are delivered to based on Fuzzy Control
In the governor circuit of rule factor electric power spring processed, the data that then will test carry out respectively input operation, differentiate,
Quantization operations, fuzzy analysis operation, scale operation, PWM wave generate six category data analytic operation of operation, wherein fuzzy analysis point
It is analyzed for rule factor α and analyzes two parts with adjustable rule factor, and respectively in the then factor-alpha Fuzzy Control of S1 step setting
Device processed and adjustable rule factor fuzzy controller carry out；Wherein complete data analysis after control rule factor α finally by
Output after scale operation link, and output result is fed back into governor circuit, and switch electricity as governor circuit drive control
Road, reactive power compensation fling-cut switch operating status control parameter participate in and existed based on fuzzy control rule factor electric power spring
Operating status adjusts operation in circuit operation.
Further, in the S2 step, detailed process when carrying out data analysis is as follows:
Error signal e is generated to its mono- tunnel change rate ec, e and ec after derivative module first by the quantization amount of obtaining
Change data value K1 and K2, and quantized data value K1 and K2 are input in the rule factor α fuzzy controller of S1 step setting,
Fuzzy quantity is carried out in rule factor α fuzzy controllerWithOperation, wherein fuzzy quantityWithOperation relation formula difference
Are as follows:
WithCollective effect generates output signal in rule factor α fuzzy controllerIt is expressed are as follows:
Export α by scale operation Ka can adjust in rule factor fuzzy controller to band；
Then, e obtains quantized data value Ke and Kec by quantization with ec another way, and will arrive quantized data value Ke and Kec
It is input in the fuzzy controller with adjustable gene, can adjust and carry out fuzzy quantity E and EC fortune in rule factor fuzzy controller
It calculates, wherein fuzzy quantity E and EC operation relation formula is respectively as follows:
E=<Ke*e>(4)
EC=<Kec*ec>(5)
E, EC and α collective effect in adjustable rule factor fuzzy controller generates output signal U, expression formula are as follows:
U exports u to PWM generation module by scale operation Ku, finally exports PWM wave to based on the fuzzy control rule factor
At the governor circuit of electric power spring, and adjusted by governor circuit according to PWM wave drive control switching circuit operating status；
Further, in data analysis:
(1), "<>" indicates fuzzification operation in (2), (4) and (5) formula, needs to combine input membership function；(3) with (6)
In formulaIt indicates to carry out Indistinct Input fuzzy rule analysis operation, needs to combine fuzzy controller control rule appropriate；
"-<>" indicate anti fuzzy method operation, it needs to combine respective output membership function, (1), (2) and (3) formula are in rule factor α mould
It is realized in fuzzy controllers, (4), (5) are realized in adjustable rule factor fuzzy controller with (6) formula.
On the one hand the more traditional circuit system for being provided with electric power spring-compensating of the present invention greatly simplifies and has standardized electricity
Line structure and circuit connecting relation, it is another convenient for improving circuit, maintenance, the working efficiency for managing operation and reducing job costs
Aspect electric power spring equipment is strong to circuit compensation regulating power, and operation control precision is high, and can effectively realize and carry out electricity to power grid
The multiple parameters such as pressure, electric current and power factor compensation, to also greatly be mentioned while effectively ensuring that electrical equipment is stable
The stability and reliability of high network system operation.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is electric power spring structure schematic diagram of the present invention；
Fig. 2 is that the present invention is based on the power supply circuit construction schematic diagrames of electric power spring；
Fig. 3 is that electric power spring fuzzy control rule factor calculates flow chart of steps；
Fig. 4 is that electric power spring fuzzy control rule factor calculates steps flow chart schematic diagram；
Fig. 5 is input membership function；
Fig. 6 is rule factor α output membership function；
Fig. 7 is u output membership function.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
It is described based on fuzzy control rule factor electric power spring such as Fig. 1, including governor circuit 1, control switch circuit 2,
Pressure regulation inverter circuit 3, filter circuit 4, reactive power compensation fling-cut switch 5, charge-discharge control circuit 6, voltage transformer 7, electricity
Current transformer 8, compensation capacitor group 9, reactor group 10 and battery group 11, compensation capacitor group 9, reactor group 10 and electric power storage
Pond group 11 it is equal at least one, and it is parallel with one another, wherein compensation capacitor group 9 and reactor group 10 respectively by filter circuit 4 with
Reactive power compensation fling-cut switch 5 is electrically connected, and battery group 11 passes through 3 electricity of charge-discharge control circuit 6 and pressure regulation inverter circuit
Gas connection, pressure regulation inverter circuit 3 are separately electrically connected by filter circuit 4 and control switch circuit 2, governor circuit 1 respectively with control
Switching circuit 3 processed, reactive power compensation fling-cut switch 5, voltage transformer 7, current transformer 8 are electrically connected, and mutual induction of voltage
Device 7, current transformer 8 are several, each voltage transformer 7 and a current transformer 8 constitute a detection group, and are detected
Group at least three, it is parallel with one another between each detection group and be electrically connected respectively with governor circuit 1.
Wherein, the control switch circuit 2 includes at least four groups based on the switching circuit based on thyristor, and each base
Switching circuit based on thyristor is parallel with one another, and the governor circuit 1 is based on industrial single-chip microcontroller, PLC technology
Circuit system based on any one in device, and the control circuit separately sets data communication bus module and time circuit mould
Block.
Such as Fig. 2, the power supply circuit based on fuzzy control rule factor electric power spring, including power grid 101, bus
102, key to load 103, nonessential load 104 and be based on fuzzy control rule factor electric power spring 105, wherein key
Load 103, nonessential load 104 it is equal at least one, an and key load 103 and at least one nonessential load
104 constitute a working groups, parallel with one another between each working group 104, key load 103 and nonessential minus 104 carry between mutually
Parallel connection, and be electrically connected by bus 102 and power grid 101, one is set in working group based on fuzzy control rule factor electric power bullet
Spring 105, based on fuzzy control rule factor electric power spring 105 and each nonessential load in series 104, and with key load
103 is in parallel, and is opened based on fuzzy control rule factor electric power spring 105 by control switch circuit 2, reactive power compensation switching
It closes 5 to be electrically connected with bus 102 respectively, voltage transformer 7, electric current based on fuzzy control rule factor electric power spring 105 are mutual
Sensor 8 is electrically connected with side bus 102 outside working group respectively, and with control switch circuit 2, reactive power compensation fling-cut switch 5
It is in parallel.
Wherein, the key load 104 is that electricity consumption of the working voltage surge requirements no more than voltage rating ± 2% is set
It is standby；The nonessential load 105 is the electrical equipment with wider voltage range of operation, such as pot-type boiler, electric light, sky
The equipment such as tune.
Meanwhile in the working group, it is electrically connected to each other between each working group by series and parallel circuit, in same working group
It is electrically connected between each nonessential load 104 by series and parallel circuit, and if only if multiple nonessential loads 104 are in series connection
When lower, concatenated each nonessential load 104 is connected with one based on fuzzy control rule factor electric power spring 105.
It is described based on fuzzy control rule factor electric power spring and based on fuzzy control rule factor electric power bullet such as Fig. 3-7
Fuzzy control rule factor algorithm in the power supply circuit of spring includes:
On the one hand control rule factor based on fuzzy control rule factor electric power spring is set as by S1, parameter setting
On the other hand α sets specified rate Uref and critical loads voltage Ucl makes the difference generation error signal e；And it is fuzzy control rule
Factor electric power spring include in the data operation area of governor circuit pre-generatmg rule factor α fuzzy controller and adjustable rule because
Submodule fuzzy controllers；
S2, data analysis, the bus data that voltage transformer, current transformer detect are delivered to based on Fuzzy Control
In the governor circuit of rule factor electric power spring processed, the data that then will test carry out respectively input operation, differentiate,
Quantization operations, fuzzy analysis operation, scale operation, PWM wave generate six category data analytic operation of operation, wherein fuzzy analysis point
It is analyzed for rule factor α and analyzes two parts with adjustable rule factor, and respectively in the then factor-alpha Fuzzy Control of S1 step setting
Device processed and adjustable rule factor fuzzy controller carry out；Wherein complete data analysis after control rule factor α finally by
Output after scale operation link, and output result is fed back into governor circuit, and switch electricity as governor circuit drive control
Road, reactive power compensation fling-cut switch operating status control parameter participate in and existed based on fuzzy control rule factor electric power spring
Operating status adjusts operation in circuit operation.
Further, in the S2 step, detailed process when carrying out data analysis is as follows:
Error signal e is generated to its mono- tunnel change rate ec, e and ec after derivative module first by the quantization amount of obtaining
Change data value K1 and K2, and quantized data value K1 and K2 are input in the rule factor α fuzzy controller of S1 step setting,
Fuzzy quantity is carried out in rule factor α fuzzy controllerWithOperation, wherein fuzzy quantityWithOperation relation formula difference
Are as follows:
WithCollective effect generates output signal in rule factor α fuzzy controllerIt is expressed are as follows:
Export α by scale operation Ka can adjust in rule factor fuzzy controller to band；
Then, e obtains quantized data value Ke and Kec by quantization with ec another way, and will arrive quantized data value Ke and Kec
It is input in the fuzzy controller with adjustable gene, can adjust and carry out fuzzy quantity E and EC fortune in rule factor fuzzy controller
It calculates, wherein fuzzy quantity E and EC operation relation formula is respectively as follows:
E=<Ke*e>(4)
EC=<Kec*ec>(5)
E, EC and α collective effect in adjustable rule factor fuzzy controller generates output signal U, expression formula are as follows:
U exports u to PWM generation module by scale operation Ku, finally exports PWM wave to based on the fuzzy control rule factor
At the governor circuit of electric power spring, and adjusted by governor circuit according to PWM wave drive control switching circuit operating status；
Further, in data analysis:
(1), "<>" indicates fuzzification operation in (2), (4) and (5) formula, needs to combine input membership function；(3) with (6)
In formulaIt indicates to carry out Indistinct Input fuzzy rule analysis operation, needs to combine fuzzy controller control rule appropriate；
"-<>" indicate anti fuzzy method operation, it needs to combine respective output membership function, (1), (2) and (3) formula are in rule factor α mould
It is realized in fuzzy controllers, (4), (5) are realized in adjustable rule factor fuzzy controller with (6) formula.
On the one hand the more traditional circuit system for being provided with electric power spring-compensating of the present invention greatly simplifies and has standardized electricity
Line structure and circuit connecting relation, it is another convenient for improving circuit, maintenance, the working efficiency for managing operation and reducing job costs
Aspect electric power spring equipment is strong to circuit compensation regulating power, and operation control precision is high, and can effectively realize and carry out electricity to power grid
The multiple parameters such as pressure, electric current and power factor compensation, to also greatly be mentioned while effectively ensuring that electrical equipment is stable
The stability and reliability of high network system operation.
In addition, α is output of the rule factor α fuzzy controller after proportional component, it is seen that α is controlled in (6) formula
The respective ratio of E and EC is inputted in adjustable rule factor fuzzy controller, directly affects the output of control, that is, control
Effect.Pass through the formulation to fuzzy rule in rule factor α fuzzy controller, thus it is possible to vary the e and ec under different input conditions
The effect of proportion in input.The place that the specific meaning of rule factor α will be illustrated next and need to pay attention to.
It particularly points out, when systematic error is larger, the top priority of controller is to reduce error, so making controlling elements
α more greatly, keeps ratio shared by E more great；When error is smaller, in order to inhibit the overshoot of system, controlling elements α should be made small by one
Point avoids causing system overshoot excessive because α is excessive, can also system be made to inhibit in time when starting to occur deviation, makes response as early as possible
It is drawn close to given value.It is worth noting that, if the output domain of rule factor α fuzzy controller is [0,1], in order to minimize
Systematic static error avoids error or error rate accounting excessively high, and α should not occur in the output of rule factor α fuzzy controller
The case where=0 or α=1, this should be particularly noted that in the fuzzy rule for the factor-alpha fuzzy controller that lays down a regulation.
On the one hand the more traditional circuit system for being provided with electric power spring-compensating of the present invention greatly simplifies and has standardized electricity
Line structure and circuit connecting relation, it is another convenient for improving circuit, maintenance, the working efficiency for managing operation and reducing job costs
Aspect electric power spring equipment is strong to circuit compensation regulating power, and operation control precision is high, and can effectively realize and carry out electricity to power grid
The multiple parameters such as pressure, electric current and power factor compensation, to also greatly be mentioned while effectively ensuring that electrical equipment is stable
The stability and reliability of high network system operation.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments.Above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book.Without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications.These changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (10)
1. being based on fuzzy control rule factor electric power spring, it is characterised in that: described based on fuzzy control rule factor electric power
Spring includes governor circuit, control switch circuit, pressure regulation inverter circuit, filter circuit, reactive power compensation fling-cut switch, charge and discharge
Electric control circuit, voltage transformer, current transformer, compensation capacitor group, reactor group and battery group, the compensating electric capacity
Device group, reactor group and battery group at least one, and it is parallel with one another, wherein the compensation capacitor group and reactor component
Not Tong Guo filter circuit and reactive power compensation fling-cut switch be electrically connected, the battery group by charge-discharge control circuit with
The electrical connection of pressure regulation inverter circuit, the pressure regulation inverter circuit separately pass through filter circuit and connect with control switch circuit electrical, institute
Governor circuit is stated electrically to connect with control switch circuit, reactive power compensation fling-cut switch, voltage transformer, current transformer respectively
It connects, and the voltage transformer, current transformer are several, each voltage transformer and a current transformer constitute an inspection
Survey group, and institute's detection group at least three, it is parallel with one another between each detection group and be electrically connected respectively with governor circuit.
2. according to claim 1 be based on fuzzy control rule factor electric power spring, it is characterised in that: the control is opened
Powered-down road includes at least four groups based on the switching circuit based on thyristor, and respectively based on the switching circuit phase based on thyristor
It is mutually in parallel.
3. being based on fuzzy control rule factor electric power spring according to described in claim 1, it is characterised in that: the governor circuit
For based on the circuit system based on any one in industrial single-chip microcontroller, programmable controller, and the control circuit separately sets number
According to communication bus module and time circuit module.
4. based on benefit require 1 described in the power supply circuit based on fuzzy control rule factor electric power spring, it is characterised in that: it is described
The power supply circuit based on fuzzy control rule factor electric power spring include power grid, bus, it is key load, nonessential load
And be based on fuzzy control rule factor electric power spring, wherein the key load, nonessential load at least one, and one
A key load and at least one nonessential load constitute a working group, parallel with one another, the key between each working group
Property load nonessential load between it is parallel with one another, and be electrically connected by bus and power grid, set a base in the working group
It is described to be gone here and there based on fuzzy control rule factor electric power spring with each nonessential load in fuzzy control rule factor electric power spring
Connection, and it is in parallel with key load, and the fuzzy control rule factor electric power spring that is based on passes through control switch circuit, idle
Power compensation fling-cut switch is electrically connected with bus respectively, voltage transformer based on fuzzy control rule factor electric power spring,
Current transformer is electrically connected with side bus outside working group respectively, and with control switch circuit, reactive power compensation fling-cut switch
It is in parallel.
5. according to the power supply circuit as claimed in claim 4 based on fuzzy control rule factor electric power spring, it is characterised in that: described
Key load be to voltage change and its sensitivity equipment；The nonessential load is resistive device.
6. according to the power supply circuit as claimed in claim 4 based on fuzzy control rule factor electric power spring, it is characterised in that: described
Working group in, be electrically connected to each other between each working group by series and parallel circuit.
7. according to it is as claimed in claim 4, based on benefit require 1 described in based on fuzzy control rule factor electric power spring power supply electricity
Road, it is characterised in that: in the working group, electrically connected between each nonessential load in same working group by series and parallel circuit
It connects, and if only if concatenated each nonessential load is with one based on fuzzy when multiple nonessential loads are under series connection
Control the series connection of rule factor electric power spring.
8. according to described in claim 1 or 4 based on fuzzy control rule factor electric power spring and be based on the fuzzy control rule factor
Fuzzy control rule factor algorithm in the power supply circuit of electric power spring, it is characterised in that: the fuzzy control rule factor
Algorithm includes:
On the one hand control rule factor based on fuzzy control rule factor electric power spring is set as α, separately by S1, parameter setting
On the one hand setting specified rate Uref and critical loads voltage Ucl make the difference generation error signal e；And it is the fuzzy control rule factor
Electric power spring includes pre-generatmg rule factor α fuzzy controller and adjustable rule factor mould in the data operation area of governor circuit
Fuzzy controllers；
S2, data analysis, the bus data that voltage transformer, current transformer detect are delivered to and are advised based on fuzzy control
Then in the governor circuit of factor electric power spring, the data that then will test carry out input operation respectively, differentiate, quantify
Operation, fuzzy analysis operation, scale operation, PWM wave generate six category data analytic operation of operation, and wherein fuzzy analysis is divided into rule
The then factor-alpha fuzzy controller for then factor-alpha analysis and analyzing two parts with adjustable rule factor, and being set respectively in S1 step
It is carried out with adjustable rule factor fuzzy controller；Control rule factor α is finally by ratio after wherein completing data analysis
Output after operation link, and output result is fed back into governor circuit, and as governor circuit drive control switching circuit, nothing
The control parameter of reactive power compensator fling-cut switch operating status is participated in based on fuzzy control rule factor electric power spring in circuit
Operating status adjusts operation in operation.
9. according to fuzzy control rule factor algorithm according to any one of claims 8, it is characterised in that: in the S2 step, counted
Detailed process when according to analysis is as follows:
Mono- tunnel change rate ec, e and ec that error signal e is generated to it after derivative module first obtains quantization number by quantization
It is input in the rule factor α fuzzy controller of S1 step setting according to value K1 and K2, and by quantized data value K1 and K2, in rule
Fuzzy quantity is carried out in factor-alpha fuzzy controllerWithOperation, wherein fuzzy quantityWithOperation relation formula is respectively as follows:
WithCollective effect generates output signal in rule factor α fuzzy controllerIt is expressed are as follows:
Export α by scale operation Ka can adjust in rule factor fuzzy controller to band；
Then, e obtains quantized data value Ke and Kec by quantization with ec another way, and will arrive quantized data value Ke and Kec and input
Into the fuzzy controller with adjustable gene, it can adjust and carry out fuzzy quantity E and EC operation in rule factor fuzzy controller,
Middle fuzzy quantity E and EC operation relation formula is respectively as follows:
E=<Ke*e>(4)
EC=<Kec*ec>(5)
E, EC and α collective effect in adjustable rule factor fuzzy controller generates output signal U, expression formula are as follows:
U exports u to PWM generation module by scale operation Ku, finally exports PWM wave to based on fuzzy control rule factor electric power
At the governor circuit of spring, and adjusted by governor circuit according to PWM wave drive control switching circuit operating status.
10. according to fuzzy control rule factor algorithm as claimed in claim 9, it is characterised in that: in the data analysis:
(1), "<>" indicates fuzzification operation in (2), (4) and (5) formula, needs to combine input membership function；(3) and in (6) formulaIt indicates to carry out Indistinct Input fuzzy rule analysis operation, needs to combine fuzzy controller control rule appropriate；"—<
> " indicate anti fuzzy method operation, it needs to combine respective output membership function, (1), (2) and (3) formula are in rule factor α Fuzzy Control
It is realized in device processed, (4), (5) are realized in adjustable rule factor fuzzy controller with (6) formula.
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