CN106553557B - Composite power source and power distribution control method applied to mixed power electric car - Google Patents
Composite power source and power distribution control method applied to mixed power electric car Download PDFInfo
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- CN106553557B CN106553557B CN201610997842.8A CN201610997842A CN106553557B CN 106553557 B CN106553557 B CN 106553557B CN 201610997842 A CN201610997842 A CN 201610997842A CN 106553557 B CN106553557 B CN 106553557B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Sustainable Energy (AREA)
- Dc-Dc Converters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to the power control techniques fields of mixed power electric car, more particularly to a kind of composite power source and power distribution control method applied to mixed power electric car, battery is connected to DC bus by Boost as main power source in composite power source；Supercapacitor is connected to DC bus as accessory power supply, by One Buck-Boost converter body.Power distribution control method controls Boost and One Buck-Boost converter body, and power distribution control method is able to achieve stable DC busbar voltage, accurate tracking supercapacitor electric current reference value, control system and realizes 3 control targets of asymptotically stable in the large.Supercapacitor carries out power compensation to battery in composite power source and power distribution control method, avoids battery offer instantaneous power and peak power, the whole efficiency of composite power source significantly improve；Supercapacitor can quickly and efficiently high current charge-discharge, recycled regenerating braking energy to the maximum extent, be saved greatly the energy.
Description
Technical field
The present invention relates to the power control techniques fields of mixed power electric car, and in particular to it is dynamic that one kind is applied to mixing
The composite power source and power distribution control method of power electric car.
Background technique
Battery-supercapacitor composite power source has obtained extensive research in mixed power electric car field, but multiple
The power distribution control closed between power supply architecture and two kinds of power supplys is still current key points and difficulties problem, becomes restriction compound electric
The main bottleneck that source technology promotes and applies.In order to ensure energy and power between battery, supercapacitor and load three
Two-way dynamic flowing, it will usually battery and supercapacitor respectively be connected in parallel again after a power inverter, pass through master
Dynamic control power inverter meets the energy and power demand of load so that battery and supercapacitor are contributed in time at any time.
Composite power source power distribution control strategy controls power inverter, and conventional method uses linear control technique pair
Composite power source is controlled, but either power inverter or supercapacitor belongs to nonlinear device, so adopting
With linear control strategies, system stability is to be improved.For nonlinear Control, including logical threshold control and fuzzy logic control
System and filtering control etc..Logical threshold control and fuzzy logic control are all based on the control strategy of rule, only obscure and patrol
The threshold value collected in control strategy is blurred, and the control thought of both control strategies is roughly the same, and rule set is also basic
Similar, control rule is relatively more fixed, cannot timely on-line tuning.It and is essentially all to control super capacitor for filtering control
The voltage of device to carry out power distribution to battery and supercapacitor, cannot be well adapted for the variation of operating condition.
Summary of the invention
It is an object of the invention to propose a kind of composite power source applied to mixed power electric car and power distribution control
Method processed, wherein applied to battery in the composite power source of mixed power electric car as main power source, converted by Boost
Device is connected to DC bus；Supercapacitor is connected to DC bus as accessory power supply, by One Buck-Boost converter body；Function
Rate distribution control method can give full play to the advantage that battery specific energy in composite power source is big and supercapacitor specific power is big, and two
Kind power supply can have complementary advantages, and meet mixed power electric car to the dual requirements of energy and power.
In order to achieve the object of the present invention, used technical solution is: applied to the compound of mixed power electric car
Power supply, including battery and supercapacitor, battery are connected to direct current by Boost as main power source, battery
Bus, supercapacitor are connected to DC bus, direct current by One Buck-Boost converter body as accessory power supply, supercapacitor
Bus passes through power inverter for DC power conversion into alternating current, so that traction electric machine is driven, traction electric machine band driven mixed power
The vehicle wheel rotation of electric car.
As prioritization scheme of the invention, Boost includes the first high-frequency inductor L1, output filter capacitor Cdc, two
Pole pipe D1 and the first full-controlled switch device IGBT S1, the first high-frequency inductor L1One end connection battery anode, first is high
Frequency inductance L1Other end connection diode D1 anode, the cathode of diode D1 and output filter capacitor CdcAnode connection,
Output filter capacitor CdcCathode be connected with the cathode of battery, the first full-controlled switch device IGBT S1Collector and
One high-frequency inductor L1The other end connection, the first full-controlled switch device IGBT S1Emitter be connected with the cathode of battery.
As prioritization scheme of the invention, One Buck-Boost converter body includes the second high-frequency inductor L2, the second full-control type opens
Close device IGBT S2With third full-controlled switch device IGBT S3, the second high-frequency inductor L2One end and supercapacitor just
Pole connection, the second high-frequency inductor L2The other end respectively with the second full-controlled switch device IGBT S2Collector and third control entirely
Type switching device IGBT S3Emitter connection, the second full-controlled switch device IGBT S2Emitter and supercapacitor
Cathode connection, third full-controlled switch device IGBT S3Collector connect with power inverter.
In order to achieve the object of the present invention, used technical solution is: applied to the compound of mixed power electric car
The power distribution control method of power supply, for carrying out power distribution control to the composite power source for being applied to mixed power electric car
System, includes the following steps:
A, the voltage V of stable DC busdc, so that the voltage V of DC busdcTrack constant reference value Vdc-ref,
The control rule of Boost input signal are as follows:
Wherein: μ1For the first full-controlled switch device IGBT S1Gate drive signals average value, battery (1) is equivalent
For DC voltage source vb, L1For the first high-frequency inductor L1Inductance value, the first high-frequency inductor L1Equivalent series resistance R1, x3For
VdcAverage value, c1> 0 is defined as design parameter, e3For DC bus-bar voltage VdcAverage value x3With its design value x3dBetween
Error, x1For ibfAverage value, ibfFor the first high-frequency inductor L1Input current, ibf-refFor the first high-frequency inductor L1Reference
Current value, e1=x1-ibf-ref；
B, make the current actual value i of supercapacitor (2)ucMoment track reference value iuc-ref, pass through active control iuc
Moment track reference value iuc-ref, so that supercapacitor carries out power compensation to battery in time, One Buck-Boost converter body is defeated
Enter signal mu23Control rule are as follows:
Wherein: L2For the second high-frequency inductor L2Inductance value, c2> 0 is defined as design parameter, e2=x2-iuc-ref, x2For iuc
Average value, the voltage at supercapacitor both ends is vuc, R2For L2Equivalent series resistance.
As prioritization scheme of the invention, the power distribution controlling party of the composite power source applied to mixed power electric car
Method further comprises the steps of: the composite power source realization Globally asymptotic that control is applied to mixed power electric car, so that direct current is female
Line voltage VdcDesign value x3dMeet:
Wherein, s is Laplace operator, CdcFor output filter capacitor CdcCapacitance, c3> 0 is defined as design parameter,
i0For the load current of the composite power source applied to mixed power electric car.
The present invention has the effect of positive: 1) present invention gives full play to that battery specific energy is big and supercapacitor specific power
Big advantage, two kinds of power supplys can have complementary advantages, and meet mixed power electric car to the dual requirements of energy and power.Meanwhile
The control method had both been able to achieve higher control precision, moreover it is possible to guarantee system stability with higher.
2) supercapacitor in the present invention carries out power compensation to battery, avoids battery and provides instantaneous power and peak
It is worth power, the whole efficiency of composite power source significantly improves；Supercapacitor can quickly and efficiently high current charge-discharge, maximum limit
Regenerating braking energy has been recycled to degree, has been saved greatly the energy.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Circuit structure of the Fig. 1 for the composite power source applied to mixed power electric car in mixed power electric car；
Fig. 2 is the topological structure of the composite power source applied to mixed power electric car；
Fig. 3 is the power distribution control method illustraton of model of the composite power source applied to mixed power electric car；
Fig. 4 is input signal u2And u3The block diagram of transformation system.
Wherein: 1, battery, 2, supercapacitor, 3, power inverter, 4, traction electric machine.
Specific embodiment
In the description of the present invention, it is to be understood that, term " radial direction ", " axial direction ", "upper", "lower", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Circuit structure of the Fig. 1 for the composite power source applied to mixed power electric car in mixed power electric car,
Including battery 1 and supercapacitor 2, battery 1 is used as main power source, and battery 1 is connected to direct current by Boost
Bus, supercapacitor 2 are used as accessory power supply, and supercapacitor 2 is connected to DC bus by One Buck-Boost converter body, directly
It flows bus and passes through power inverter 3 for DC power conversion into alternating current, to drive traction electric machine 4, traction electric machine 4 drives mixing
The vehicle wheel rotation of power electric automobile.Wherein, the composite power source in the application is applied to the compound of mixed power electric car
The abbreviation of power supply, power distribution control method are the power distribution controlling parties of the composite power source applied to mixed power electric car
The abbreviation of method.
Fig. 2 is the topological structure of the composite power source applied to mixed power electric car, and Boost includes first high
Frequency inductance L1, output filter capacitor Cdc, diode D1 and the first full-controlled switch device IGBT S1, the first high-frequency inductor L1's
One end connects the anode of battery 1, the first high-frequency inductor L1The other end connection diode D1 anode, the cathode of diode D1
With output filter capacitor CdcAnode connection, output filter capacitor CdcCathode be connected with the cathode of battery 1, the first full control
Type switching device IGBT S1Collector and the first high-frequency inductor L1The other end connection, the first full-controlled switch device IGBT
S1Emitter be connected with the cathode of battery 1.Wherein, battery 1 shows as low-voltage direct, and effect is to provide it for load
Required mean power, is defined as energy source.R1For the first high-frequency inductor L1Equivalent series resistance, u1It is opened for the first full-control type
Close device IGBT S1Binary system driving signal.Input capacitance CbEffect be to be prevented when load instantaneous power demand is higher
1 overvoltage of battery.Supercapacitor 2 is connected to DC bus by One Buck-Boost converter body as accessory power supply, super
Two-way flow may be implemented in the electric current of capacitor 2, and effect is to provide instantaneous power demands for load, such as accelerates or slowed down
Peak power in journey, is defined as power source.R2For L2Equivalent series resistance, u2And u3Respectively the second full-controlled switch device
Part IGBT S2With third full-controlled switch device IGBT S3Gate leve binary system driving signal.L2Effect be energy transfer and
Filtering, size are determined by switching frequency and ripple current.
One Buck-Boost converter body includes the second high-frequency inductor L2, the second full-controlled switch device IGBT S2It is controlled entirely with third
Type switching device IGBT S3, the second high-frequency inductor L2The anode of one end and supercapacitor 2 connect, the second high-frequency inductor L2's
The other end respectively with the second full-controlled switch device IGBT S2Collector and third full-controlled switch device IGBT S3Transmitting
Pole connection, the second full-controlled switch device IGBT S2Emitter connect with the cathode of supercapacitor 2, third full-control type is opened
Close device IGBT S3Collector connect with power inverter 3.
Boost is using classical DC bus-bar voltage feedback closed loop control, for One Buck-Boost converter body,
Then use 2 current follow-up control of supercapacitor, i.e. current actual value iucMoment tracks its reference value iuc-ref, iuc-refIt is one
The value constantly changed according to actual condition.
(1) energy models
Battery 1 is equivalent to DC voltage source v in modeling processb, output electric current is ib, as shown in Figure 2.It is super
Capacitor 2 is equivalent to ideal capacitor CucWith its equivalent series resistance R in charge and dischargeucConcatenated structure, supercapacitor
2 both end voltages are vuc, output electric current is iuc。
(2) Boost model
The power stage Bilinear Equations of available Boost from Fig. 2, as shown in formula (1) and (2), and are examined
Some non-idealities are considered, such as inductance L1Equivalent series resistance R1, the first full-controlled switch device IGBT S1Gate leve driving
Signal u1For pwm signal, numerical value is between (0,1).
Wherein, ibfAnd i1Respectively inductance L1Input current and Boost output electric current, vdcFor direct current mother
Line voltage.
(3) One Buck-Boost converter body model
One Buck-Boost converter body model includes a Buck converter and a Boost converter, therefore, super electricity
(the i in discharge mode of container 2sc> 0) Buck-Boost converter shows as Boost, (i in charging modesc<
0) Buck-Boost converter shows as Buck converter.Since the control target of One Buck-Boost converter body is to guarantee iucWhen
Carve tracking its reference value iuc-ref, we can define shown in a binary variable k such as formula (3):
As k=1, S3Gate drive signals u3It is set as 0, S2Gate drive signals u2For pwm signal, it is contemplated that u2It is two
Following bilinearity switch models can be obtained in the numerical value changed between system (0,1):
i2=(1-u2)iucFormula (5)
As k=2, S2Gate drive signals u2It is set as 0, S3Gate drive signals u3For pwm signal, it also is contemplated that arrive u3
The numerical value changed between binary system (0,1), then bilinearity switch models become:
i2=u3iucFormula (7)
On the basis of local module modeling, it is necessary to establish global system model to obtain the optimal control of control target
System.From the world model of the available Buck-Boost converter in formula (4)-(7):
i2=[k (1-u2)+(1-k)u3]iucFormula (9)
On the other hand, it can be obtained from Fig. 2 and formula (9):
i1=io-i2=io-[k(1-u2)+(1-k)u3]iucFormula (10)
Wherein, i0For load current.
Finally, can establish the world model that bilinearity switchs from formula (1), (8) and (10):
Wherein, u23For the unique input control variable of One Buck-Boost converter body, define as shown in formula (14):
u23=k (1-u2)+(1-k)u3Formula (14)
In order to be easier to realize control target, average global mould of formula (11)-(13) in switch periods is established
Type:
Wherein, x1For ibfAverage value, x2For iucAverage value, x3For vdcAverage value, μ1And μ23For duty ratio, equally
It also is u1And u23Average value.
Control strategy it is good with it is bad, often evaluated by control target.Its control target design of control strategy is as follows:
(1) in the case where loading continually changing situation, stable DC busbar voltage vdc.DC bus-bar voltage is more stable, compound
Power supply energy and power conversion efficiency are higher；
(2)iucMoment tracks its reference value iuc-ref.Supercapacitor mainly undertakes the instantaneous power in bearing power and needs
It asks, passes through active control iucMoment tracks its reference value iuc-ref, ensure that supercapacitor carries out power benefit to battery in time
It repays, iuc-refIt is embodied in the situation of change of load current；
(3) control system realizes asymptotically stable in the large.
1) non-linear control strategy designs
First control target is to ensure that DC bus-bar voltage vdcTrack its constant reference value vdc-ref, however total institute's week
Know, there are non-minimum phase features for Boost.For this problem, not to vdcAnd vdc-refIt is directly controlled, but
Using control inductance L1Input current ibfThis method for indirectly controlling solves.Definitely show themselves in that inductance L1Input current
ibfTrack its reference current value ibf-ref, there is i in when systematic steady statebf=ibf-ref, vdc=vdc-ref, vdc-ref> vb.It is kept from energy
Permanent angle considers that input power is equal to output power, therefore ibf-refWith vdc-refRelationship it is as follows:
Wherein, λ >=1 is fissipation factor, including switching loss and inductor loss.
In order to realize first control target, we introduce error variance such as formula (19), e here1It is worth smaller, direct current
Busbar voltage is more stable.e1Average value can be derived from from formula (15), be specifically shown in formula (20).
e1=x1-ibf-refFormula (19)
Allow e1Be worth it is smaller, namelyBe worth it is smaller,Execution can behave as:
Wherein, c1> 0 is defined as design parameter, e3For DC bus-bar voltage vdcAverage value x3With its design value x3dBetween
Error, see formula (22), x3dExpression formula can specifically give hereinafter.
e3=x3-x3dFormula (22)
In conjunction with formula (20), (21), the control rule of Boost input signal can be obtained:
Wherein, e3For the damping term in control rule, effect is adjustment output response.
In next step, to realize second control target, One Buck-Boost converter body input signal μ need to be formulated23Control rule
Then.For this purpose, introducing error variance e2:
e2=x2-iuc-refFormula (24)
According to formula (16), average valueAre as follows:
Equally, i is realizeducMoment tracks its reference value iuc-ref,Value it is the smaller the better,Execution can behave as:
Wherein, c2> 0 is also design parameter.
In conjunction with formula (24) and (26), input signal μ23Control rule it is as follows:
So far, the first two control target is finished with designing, and whether stable verifies closed-loop control system in next step.
2) stability analysis
Third control target is that composite supply control system realizes asymptotically stable in the large, from formula (23) and can (25)
Hand passes through state variable (e1, e2, e3) judge, it establishes shown in secondary liapunov function such as formula (28):
Purpose is the average value so that VNegative definite,It can be obtained from formula (21), (26) and (28):
Wherein, c3> 0 is still design parameter.
Therefore, secondary liapunov function can be rewritten as in this case:
It can be seen that from formula (31)Containing state vector (e1, e2, e3) closed-loop system asymptotically stable in the large.
Finally, available from formula (17), (22) and (30):
Wherein, s is Laplace operator.
Fig. 4 is input signal u2And u3The block diagram of transformation system accepts attached drawing 3, forms complete mixed power electric car
Composite power source power distribution control strategy.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By
The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.
Claims (2)
1. a kind of power distribution control method of the composite power source applied to mixed power electric car, it is characterised in that: described
The composite power source of mixed power electric car include battery (1) and supercapacitor (2), the battery (1) conduct
Main power source, the battery (1) are connected to DC bus by Boost, and the supercapacitor (2) is as auxiliary
Power supply is helped, the supercapacitor (2) is connected to DC bus by One Buck-Boost converter body, and DC bus passes through power
Inverter (3) is by DC power conversion at alternating current, to drive traction electric machine (4), traction electric machine (4) drives hybrid electric
The vehicle wheel rotation of automobile, the Boost include the first high-frequency inductor L1, output filter capacitor Cdc, diode D1 and
First full-controlled switch device IGBT S1, the first high-frequency inductor L1One end connection battery (1) anode, the first high-frequency inductor
L1Other end connection diode D1 anode, the cathode of diode D1 and output filter capacitor CdcAnode connection, output filter
Wave capacitor CdcCathode be connected with the cathode of battery (1), the first full-controlled switch device IGBT S1Collector and first high
Frequency inductance L1The other end connection, the first full-controlled switch device IGBT S1Emitter be connected with the cathode of battery (1), institute
The One Buck-Boost converter body stated includes the second high-frequency inductor L2, the second full-controlled switch device IGBT S2It is opened with third full-control type
Close device IGBT S3, the second high-frequency inductor L2The anode of one end and supercapacitor (2) connect, the second high-frequency inductor L2It is another
One end respectively with the second full-controlled switch device IGBT S2Collector and third full-controlled switch device IGBT S3Emitter
Connection, the second full-controlled switch device IGBT S2Emitter connect with the cathode of supercapacitor (2), third full-control type is opened
Close device IGBT S3Collector connect with power inverter (3), include the following steps:
A, the voltage V of stable DC busdc, so that the voltage V of DC busdcTrack constant reference value Vdc-ref, Boost change
The control rule of parallel operation input signal are as follows:
Wherein: μ1For the first full-controlled switch device IGBT S1Gate drive signals average value, battery (1) is equivalent to directly
Galvanic electricity potential source vb, L1For the first high-frequency inductor L1Inductance value, the first high-frequency inductor L1Equivalent series resistance R1,x3For VdcIt is flat
Mean value, c1> 0 is defined as design parameter, e3For DC bus-bar voltage VdcAverage value x3With its design value x3dBetween error, x1
For ibfAverage value, ibfFor the first high-frequency inductor L1Input current, ibf-refFor the first high-frequency inductor L1Reference current value,
e1=x1-ibf-ref；
B, make the current actual value i of supercapacitor (2)ucMoment track reference value iuc-ref, pass through active control iucMoment with
Track reference value iuc-ref, so that supercapacitor (2) carries out power compensation to battery (1) in time, One Buck-Boost converter body is defeated
Enter signal mu23Control rule are as follows:
Wherein: L2For the second high-frequency inductor L2Inductance value, c2> 0 is defined as design parameter, e2=x2-iuc-ref, x2For iucIt is flat
Mean value, the voltage at supercapacitor (2) both ends are vuc, R2For L2Equivalent series resistance.
2. the power distribution control method of the composite power source according to claim 1 applied to mixed power electric car,
It is characterized by: the power distribution control method of the composite power source applied to mixed power electric car further comprises the steps of:
The composite power source that control is applied to mixed power electric car realizes Globally asymptotic, so that DC bus-bar voltage VdcDesign
Value x3dMeet:
Wherein, s is Laplace operator, CdcFor output filter capacitor CdcCapacitance, c3> 0 is defined as design parameter, i0For
The load current of composite power source applied to mixed power electric car.
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| CN108608876A (en) * | 2018-04-09 | 2018-10-02 | 江苏理工学院 | Extended-range mixed power electric car composite power source Energy Management System control strategy |
| CN109130890A (en) * | 2018-09-28 | 2019-01-04 | 西安交通大学 | A kind of composite power source topological structure and control method based on dual-motor electric automobile |
| CN109532517B (en) * | 2018-10-22 | 2020-09-15 | 江苏理工学院 | Management control method for vehicle-mounted composite power supply energy |
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