CN105391150B - A kind of power supply system for trolley bus and its method for controlling power supply - Google Patents
A kind of power supply system for trolley bus and its method for controlling power supply Download PDFInfo
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- CN105391150B CN105391150B CN201510880635.XA CN201510880635A CN105391150B CN 105391150 B CN105391150 B CN 105391150B CN 201510880635 A CN201510880635 A CN 201510880635A CN 105391150 B CN105391150 B CN 105391150B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Abstract
The present invention relates to a kind of power supply system for trolley bus and its method for controlling power supply, the system includes isolation DC/DC, super capacitor, two-way DC/DC and power battery, the input terminal of isolation DC/DC is connect by trolley pole with direct current supply gauze, and isolation DC/DC connects the dynamical system of trolleybus by super capacitor；Power battery is connected to the input terminal of isolation DC/DC by two-way DC/DC.In power supply control, the actual voltage value of direct current gauze is acquired in real time, and correspondingly power supply control is then carried out according to the condition that actual voltage value meets.By the voltage for directly acquiring gauze, it is powered control according to fluctuation, the operation of electric car can effectively be controlled, and when gauze voltage fluctuation is more serious, by correspondingly controlling to adjust, the consequence for avoiding power supply system for trolley bus internal unit from damaging, not only ensure that the safe operation of electric car, and avoid and cause personal injury to passenger and driver.
Description
Technical field
The present invention relates to a kind of power supply system for trolley bus and its method for controlling power supply.
Background technology
Trolleybus once played certain effect as a kind of conventional truck in urban public transport field, but due to
Itself defect, develops along with technology, and trolleybus is gradually replaced by the mass transportation facilities of fuel power.
As environmental pollution and energy problem constantly aggravate, trolleybus is returned to again in the visual field of people, trackless electricity
The advantages of Che Yiqi " zero-emission ", can meet the needs of air contaminant treatment, and meet the developing direction of new-energy automobile, increasingly
Receive the concern of people.
Application No. is 201410319626 Chinese patent applications to disclose a kind of trolleybus and its isolated power supply
System, the power supply system are at work, corresponding to control isolated DC/DC and power battery according to the size of vehicle demand power
To meet effective operation of vehicle.But it is by three-phase alternating current liter since the power supply gauze of trolleybus is direct current
The high voltage direct current that repoussage stream obtains, and since feed line of power supply is longer and the uncertainty of load, easily lead to gauze voltage
Unstable and system load work exception, and this exception further influences the power supply quality of gauze.In gauze voltage
Under the premise of unstable, be just unable to control effective operation of electric car according to the size of vehicle demand power, gauze voltage fluctuation compared with
When being serious, it is likely to result in the consequence of power supply system for trolley bus internal unit damage, can not only ensure the safety of electric car
Operation, and personal injury may be caused to passenger and driver.
Invention content
The object of the present invention is to provide a kind of power supply system for trolley bus, to solve the premise in gauze spread of voltage
Under, the problem of being unable to control effective operation of electric car.Present invention simultaneously provides the power supply control sides of the power supply system for trolley bus
Method.
To achieve the above object, the solution of the present invention includes a kind of power supply system for trolley bus, including：DC/DC is isolated, surpasses
The input terminal of grade capacitance, two-way DC/DC and power battery, the isolation DC/DC is connect by trolley pole with direct current supply gauze,
The isolation DC/DC connects the dynamical system of trolleybus by the super capacitor；The power battery passes through described two-way
DC/DC is connected to the input terminal of the isolation DC/DC.
The two-way DC/DC includes a switching tube branch, and the switching tube branch route two concatenated switch tube modules
Composition；The switching tube branch is connected between the input terminal of the two-way DC/DC, one of them switchs tube module and one dynamic
Power lines in parallel, string sets that there are one inductance and the power batteries on the power line.
There are one diodes and the first precharge for concatenation on circuit between the trolley pole and the input terminal that DC/DC is isolated
Module, first pre-charge module are made of the first precharge branch and the first main electrical scheme branch circuit parallel connection, first preliminary filling
Electric branch road string is equipped with the first precharge switch and the first divider resistance, and the first main electrical scheme branch road string is equipped with the first master and opens
It closes.
Also string is equipped with the second pre-charge module on the power line, and second pre-charge module is by the second precharge branch
Road and the second main electrical scheme branch circuit parallel connection form, and string is equipped with the second precharge switch and the second partial pressure in second precharge branch
Resistance, the second main electrical scheme branch road string are equipped with the second main switch.
The two-way DC/DC further includes the first capacitive branch and the second capacitive branch, is concatenated on first capacitive branch
There is the first capacitance, the second capacitance, the string of the power battery and second pre-charge module are serially connected on the second capacitive branch
On line road is in parallel with first capacitive branch, and second capacitive branch is connected between the input terminal of the two-way DC/DC.
A kind of method for controlling power supply for the power supply system for trolley bus being exclusively used in above-mentioned power supply system for trolley bus, including with
Lower step：
(1) the actual voltage value V of direct current gauze is acquired in real timeIt is practical；
(2) work as VIt is practicalMeet：V1< VIt is practical< V2When, gauze provides electric energy by the way that DC/DC is isolated for electric car；
Work as VIt is practicalMeet：V3< VIt is practical< V4When, gauze provides electric energy by the way that DC/DC is isolated for electric car, and isochrone Netcom is excessively double
It is power battery charging to DC/DC；
Work as VIt is practicalMeet：VIt is practical< V5When, gauze provides electric energy by the way that DC/DC is isolated for electric car, while power battery is successively
By two-way DC/DC and isolation DC/DC electric energy is provided for electric car；
Wherein, V1、V2、V3、V4、V5It is setting voltage value, and V5< V1< V2< V3< V4。
The step (2) further includes：
Work as VIt is practicalMeet：VIt is practical≥V4When, and the duration be more than or equal to the first setting time when, gauze not by every
Electric energy is provided for electric car from DC/DC, and power battery passes sequentially through two-way DC/DC and isolation DC/DC provides electric energy for electric car, electricity
Vehicle downrating.
It is described to work as VIt is practicalMeet：VIt is practical< V5Specially：
Work as V6< VIt is practical< V5When, gauze is that electric car provides electric energy by the way that DC/DC is isolated, while power battery passes sequentially through pair
To DC/DC and isolation DC/DC electric energy is provided for electric car；
Work as VIt is practical≤V6When, and the duration be more than or equal to the second setting time when, gauze by be isolated DC/DC be
Electric car provides electric energy, while power battery passes sequentially through two-way DC/DC and isolation DC/DC and provides electric energy for electric car, and work(drops in electric car
Rate is run；
Wherein, V6To set voltage value.
It is described to work as VIt is practicalMeet：V1< VIt is practical< V2When：As the SOC of power battery >=90%, power battery does not work；When
The SOC of power battery meets：75%≤SOC<When 90%, gauze is that power battery carries out trickle charge by two-way DC/DC, this
In trickle be：The range of charging current is 0-0.2C.
The V1=85% × VNominally, the V2=115% × VNominally, the V3=116% × VNominally, the V4=130%
×VNominally, the V5=84% × VNominally, the V6=70% × VNominally, wherein the VNominallyFor the gauze voltage nominal value of setting；
First setting time and the second setting time are 30s.
In power supply system for trolley bus provided by the invention, including a two-way DC/DC and power battery, two-way DC/DC
Input terminal connection isolation DC/DC input terminal, the output end of two-way DC/DC connects power battery.The power supply system is working
When, acquire the actual voltage value of direct current gauze in real time first；Then it is powered according to collected practical gauze voltage value
Control, which is from most basic control element, since there is close passes between gauze fluctuation and the operation of electric car
System, then, the power of gauze fluctuation is obtained according to the relationship between the actual voltage value of gauze and several setting values, then root
It is correspondingly controlled according to fluctuation power.By directly acquiring the voltage of gauze, control, certain energy are powered according to fluctuation
The operation of enough effectively control electric cars, and when gauze voltage fluctuation is more serious, by correspondingly controlling to adjust, avoid trackless
The consequence of electric car power supply system internal unit damage, not only ensure that the safe operation of electric car, and avoid to passenger and Si
Machine causes personal injury.
Description of the drawings
Fig. 1 is the entire block diagram of power supply system for trolley bus；
Fig. 2 is the main topological diagram of two-way DC/DC.
Specific implementation mode
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Power supply system for trolley bus as shown in Figure 1, including：DC/DC, super capacitor, two-way DC/DC and power electric is isolated
Pond, the input terminal that DC/DC is isolated are connect by trolley pole with direct current supply gauze, and the output end that DC/DC is isolated passes through super electricity
Hold the dynamical system of connection trolleybus, i.e. High-Voltage Electrical Appliances system.The input of the input terminal connection isolation DC/DC of two-way DC/DC
The output end at end, two-way DC/DC connects power battery.A controller can also be separately provided in the power supply system, or uses
The entire car controller of electric car, controller are internally provided with software program, by the software program of setting control corresponding equipment into
The corresponding work of row.
There are one diodes and the first precharge mould for concatenation on circuit between trolley pole and the input terminal that DC/DC is isolated
Block, the first pre-charge module are made of the first precharge branch and the first main electrical scheme branch circuit parallel connection, are gone here and there in the first precharge branch
Equipped with the first precharge switch K1 and the first divider resistance, the first main electrical scheme branch road string is equipped with the first main switch K2.Utilize two
The unilateral conduction of pole pipe makes electric energy have anti-reverse protection in input；In addition, linked network when driving, trolley pole contact line
Net, electrical vehicular power system take electricity from gauze, and in power up, the K1 in precharge branch is attracted, into line precharge；It has been pre-charged
Cheng Hou, closure main switch K2 power on completion.
As shown in Fig. 2, two-way DC/DC includes a switching tube branch, which route two concatenated switching tubes
Module forms, and each tube module that switchs is made of the diode of a switching tube and a reverse parallel connection；Switching tube branch connects
Between two input terminals of two-way DC/DC, one of switch tube module is in parallel with a power line, on the power line
String is equipped with inductance L, the second pre-charge module and power battery, which is led by the second precharge branch and second
Wiring branch circuit parallel connection forms, and string is equipped with the second precharge switch KM1 and the second divider resistance R in the second precharge branch, and second
Main electrical scheme branch road string is equipped with the second main switch KM.After closure main switch K2, completion is powered on, when two-way DC/DC needs to put into
When work, the switching process in the second pre-charge module is identical as above-mentioned first pre-charge module, i.e., line is closed KM1, then closes
KM is closed, to complete to provide electric energy to power battery charging or power battery.
Another output end that one of two-way DC/DC input terminals pass through connection to the two-way DC/DC.Such as
Shown in Fig. 2, which further includes the first capacitive branch and the second capacitive branch, and capacitance is serially connected on the first capacitive branch
C1 is serially connected with capacitance C2, the series circuit and the first capacitance branch of the second pre-charge module and power battery on the second capacitive branch
Road is in parallel, and the second capacitive branch is connected between the input terminal of the two-way DC/DC.
The operation principle of the two-way DC/DC is：Two-way DC/DC in linked network, C1 by KM1 preliminary fillings, C2 by K1 preliminary fillings,
When power battery needs electric discharge, Q2 does switching tube, and L does energy storage inductor, and the corresponding diodes of Q1 do fly-wheel diode, this is two-way
DC/DC constitutes booster circuit；Similarly, when power battery needs charging, Q1 does switching tube, and L is energy storage inductor, Q2 corresponding two
Pole pipe does fly-wheel diode, which constitutes reduction voltage circuit.
The power supply system is using direct current gauze as main power supply energy, and power battery is as the auxiliary power supply energy.Super capacitor
As isolation DC/DC output supports, the recycling of transient power and braking energy is born.
The power supply system carries out correspondingly power supply control according to gauze voltage, first, acquires the reality of direct current gauze in real time
Voltage value VIt is practical.Actual voltage value VIt is practicalIt is conveyed to controller, controller is according to internal program to isolation DC/DC, two-way DC/
DC, and switch K1, K2, KM1 and KM are controlled.The program of inner setting is generally according to actual voltage value VIt is practicalWith setting
Nominal voltage VNominallyBetween magnitude relationship controlled, specially：
When gauze voltage stabilization, i.e., actual acquisition arrives gauze voltage VIt is practicalStablize 15% fluctuation range of nominal value with
It is interior, i.e. 85%VNominally< VIt is practical< 115%VNominallyWhen, for gauze as energy constant source, super capacitor is used for stable power-supplying voltage, whole
The continuous energy of vehicle is that the excessively isolated DC/DC conversions of AC line Netcom obtain, and when vehicle braking, super capacitor absorbs Brake Energy
Amount, and power for driving motor when vehicle runs；In addition, SOC situation of the controller according to power battery, controls direct current gauze
Decompression benefit electricity being carried out to power battery by two-way DC/DC or not mending electricity, specific strategy is：When the SOC of power battery is more than
Or when equal to 90%, power battery does not work, i.e., gauze does not give power battery charging；Be more than as the SOC of power battery or
When equal to 75% and less than 90%, controller controls two-way DC/DC and carries out trickle benefit electricity to power battery, i.e. low current mends electricity,
Current range is 0-0.2C.
When gauze voltage fluctuation is larger：
As voltage VIt is practicalHigher than nominal voltage VNominallyWhen 16%-30%, i.e. 116%VNominally< VIt is practical< 130%VNominallyWhen, vehicle
Continuous energy still by isolated DC/DC convert obtain, super capacitor play stable both end voltage and absorb braking energy
Effect；In addition, for the efficient of guarantee system, the two-way DC/DC of controller control at this time enters decompression mode, i.e., by two-way
DC/DC charges to power battery, achievees the purpose that reduce gauze voltage to a certain extent by two-way DC/DC decompressions.
Since in gauze voltage stabilization, when SOC is more than or equal to 90%, power battery does not work power battery, i.e. power electric
10% surplus is reserved in pond to charge the battery, and then plays the role of reducing gauze voltage.
As gauze voltage VIt is practicalWhen less than nominal voltage 16%, i.e. VIt is practical< 84%VNominallyWhen, gauze is by the way that DC/DC is isolated
Electric car provides electric energy, while power battery passes sequentially through two-way DC/DC and isolation DC/DC provides electric energy for electric car.It is specifically divided into
Following two parts：As gauze voltage VIt is practicalWhen less than nominal voltage 16%-30%, i.e. 70%VNominally< VIt is practical< 84%VNominallyWhen, it is whole
The continuous energy of vehicle is converted by isolated DC/DC and is obtained, and super capacitor plays the role of burning voltage and absorbs braking energy,
To ensure the efficient of system, the two-way DC/DC of vehicle control unit controls enters boost mode at this time, that is, controls power battery and lead to successively
It crosses two-way DC/DC and isolation DC/DC provides electric energy for electric car, achieve the purpose that control gauze voltage by two-way DC/DC boostings；
As gauze voltage VIt is practicalLess than nominal VNominally30%, i.e. VIt is practical≤ 70%VNominallyWhen and duration when being more than 30s, keep at this time
K2 is closed, and control power battery passes sequentially through two-way DC/DC and isolation DC/DC provides electric energy for electric car, and two-way DC/DC enters liter
Die pressing type is powered for isolated DC/DC, and isolated DC/DC obtains the energy from two-way DC/DC and powers for vehicle, and vehicle enters drop
Power operation.Electricity due to the brownout in gauze, and in power battery is limited, at this moment if control trolleybus is complete
Power operation, not only gauze voltage cannot be satisfied condition, and can reduce battery-powered time and injure the performance of battery, institute
With, the driving motor downrating of electric car is controlled at this time, such as：Work as VIt is practicalEqual to 60%VNominallyWhen, driving motor is with complete
80% driving electric car traveling of power, gauze voltage is not only able to play certain support, and can increase the power supply of battery
Time reduces the injury to battery.Detection gauze terminal voltage in real time at this time, it is whole when gauze terminal voltage is restored in normal range (NR)
Vehicle takes electricity from gauze.
As gauze voltage VIt is practicalMore than nominal VNominally30%, i.e. VIt is practical>=130%VNominallyWhen and duration when being more than 30s,
Gauze does not provide electric energy, i.e. controller control cut-out K2 by the way that DC/DC is isolated for electric car at this time, and controller controls two-way DC/
DC enters boost mode, and power battery passes sequentially through two-way DC/DC and isolation DC/DC electric discharges, provides electric energy for electric car, and at this time
Electric car downrating.Since the electricity in power battery is limited, in the case where only power battery is powered, at this moment if control
If trolleybus capacity operation processed, battery-powered time can be more reduced, also can further injure the performance of battery, institute
With, the driving motor downrating for controlling electric car is more needed at this time, such as：Driving motor with the 70% of total power into
Row driving electric car traveling, does so the power-on time that can increase battery, and reduce the injury to battery.In addition, this time control
Device processed detects gauze voltage in real time, when gauze terminal voltage is restored in normal range (NR), re-closes K2, vehicle takes electricity from gauze.
When electric car is braked：Isolation DC/DC does not judge output voltage, is directly entered standby, the system of waiting for enters driving condition
Afterwards, driving working condition is reentered.
When electric car is under off-grid state, control and ensure that K1 and K2 is disconnected, and power battery passes sequentially through two-way DC/
DC and isolation DC/DC power for electric car, i.e., electric car only obtains the energy from power battery, other working conditions are identical as linked network.
In above-described embodiment, V1=85% × VNominally, V2=115% × VNominally, V3=116% × VNominally, V4=130% ×
VNominally, V5=84% × VNominally, V6=70% × VNominally, VNominallyFor setting gauze voltage nominal value and time parameter it is specific
Value is 30s, but the invention is not limited in above-mentioned specific values, and scale parameter and time parameter can be according to specific feelings
Condition, such as：The specific requirement of electric car safe operation is correspondingly chosen；Moreover, the selection of V1, V2, V3, V4, V5, V6
Also not and VNominallyThere is certain proportionate relationship, this six setting values can be configured as the case may be.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
Claims (9)
1. a kind of power supply system for trolley bus, which is characterized in that including：DC/DC, super capacitor, two-way DC/DC and power is isolated
The input terminal of battery, the isolation DC/DC is connect by trolley pole with direct current supply gauze, and the isolation DC/DC passes through described
Super capacitor connects the dynamical system of trolleybus；The power battery is connected to the isolation DC/ by the two-way DC/DC
The input terminal of DC；
The method for controlling power supply of the power supply system for trolley bus includes the following steps：(1) reality of direct current gauze is acquired in real time
Voltage value VIt is practical；(2) work as VIt is practicalMeet：V1< VIt is practical< V2When, gauze provides electric energy by the way that DC/DC is isolated for electric car；Work as VIt is practicalIt is full
Foot：V3< VIt is practical< V4When, gauze provides electric energy by the way that DC/DC is isolated for electric car, and the excessively two-way DC/DC of isochrone Netcom is power electric
It charges in pond；Work as VIt is practicalMeet：VIt is practical< V5When, gauze provides electric energy by the way that DC/DC is isolated for electric car, while power battery leads to successively
It crosses two-way DC/DC and isolation DC/DC provides electric energy for electric car；Work as VIt is practicalMeet：VIt is practical≥V4When, and the duration be more than or wait
When the first setting time, gauze does not provide electric energy by the way that DC/DC is isolated for electric car, and power battery passes sequentially through two-way DC/
DC and isolation DC/DC provide electric energy, electric car downrating for electric car；Wherein, V1、V2、V3、V4、V5It is setting voltage value, and
V5< V1< V2< V3< V4。
2. power supply system for trolley bus according to claim 1, which is characterized in that the two-way DC/DC is opened including one
Pipe branch is closed, the switching tube branch route two concatenated switch tube module compositions；The switching tube branch is connected to described double
To between the input terminal of DC/DC, one of switch tube module is in parallel with a power line, and string is equipped with one on the power line
A inductance and the power battery.
3. power supply system for trolley bus according to claim 1, which is characterized in that the trolley pole be isolated DC/DC's
For concatenation there are one diode and the first pre-charge module, first pre-charge module is pre- by first on circuit between input terminal
Charging paths and the first main electrical scheme branch circuit parallel connection composition, string is equipped with the first precharge switch and the in first precharge branch
One divider resistance, the first main electrical scheme branch road string are equipped with the first main switch.
4. power supply system for trolley bus according to claim 2, which is characterized in that also string is equipped with the on the power line
Two pre-charge modules, second pre-charge module is made of the second precharge branch and the second main electrical scheme branch circuit parallel connection, described
String is equipped with the second precharge switch and the second divider resistance in second precharge branch, and the second main electrical scheme branch road string is equipped with
Second main switch.
5. power supply system for trolley bus according to claim 4, which is characterized in that the two-way DC/DC further includes first
Capacitive branch and the second capacitive branch are serially connected with the first capacitance on first capacitive branch, are serially connected on the second capacitive branch
Second capacitance, the power battery is in parallel with first capacitive branch with the series circuit of second pre-charge module, institute
The second capacitive branch is stated to be connected between the input terminal of the two-way DC/DC.
6. a kind of method for controlling power supply of power supply system for trolley bus, which is characterized in that power supply system for trolley bus includes：Isolation
The input terminal of DC/DC, super capacitor, two-way DC/DC and power battery, the isolation DC/DC passes through trolley pole and direct current supply
Gauze connects, and the isolation DC/DC connects the dynamical system of trolleybus by the super capacitor；The power battery passes through
The two-way DC/DC is connected to the input terminal of the isolation DC/DC；The method for controlling power supply includes the following steps：
(1) the actual voltage value V of direct current gauze is acquired in real timeIt is practical；
(2) work as VIt is practicalMeet：V1< VIt is practical< V2When, gauze provides electric energy by the way that DC/DC is isolated for electric car；
Work as VIt is practicalMeet：V3< VIt is practical< V4When, gauze provides electric energy by the way that DC/DC is isolated for electric car, and isochrone Netcom is excessively two-way
DC/DC is power battery charging；
Work as VIt is practicalMeet：VIt is practical< V5When, gauze is that electric car provides electric energy by the way that DC/DC is isolated, while power battery passes sequentially through pair
To DC/DC and isolation DC/DC electric energy is provided for electric car；
Wherein, V1、V2、V3、V4、V5It is setting voltage value, and V5< V1< V2< V3< V4；
The step (2) further includes：
Work as VIt is practicalMeet：VIt is practical≥V4When, and the duration be more than or equal to the first setting time when, gauze do not pass through be isolated DC/
DC provides electric energy for electric car, and power battery passes sequentially through two-way DC/DC and isolation DC/DC and provides electric energy, electric car drop for electric car
Power operation.
7. the method for controlling power supply of power supply system for trolley bus according to claim 6, which is characterized in that described to work as VIt is practical
Meet：VIt is practical< V5Specially：
Work as V6< VIt is practical< V5When, gauze provides electric energy by the way that DC/DC is isolated for electric car, while power battery pass sequentially through it is two-way
DC/DC and isolation DC/DC provide electric energy for electric car；
Work as VIt is practical≤V6When, and the duration be more than or equal to the second setting time when, gauze by be isolated DC/DC carried for electric car
For electric energy, while power battery passes sequentially through two-way DC/DC and isolation DC/DC provides electric energy, electric car downrating for electric car；
Wherein, V6To set voltage value.
8. the method for controlling power supply of power supply system for trolley bus according to claim 6, which is characterized in that described to work as VIt is practical
Meet：V1< VIt is practical< V2When：As the SOC of power battery >=90%, power battery does not work；When the SOC of power battery meets：
75%≤SOC<When 90%, gauze is that power battery carries out trickle charge by two-way DC/DC, and trickle here is：Charging electricity
The range of stream is 0-0.2C.
9. the method for controlling power supply of power supply system for trolley bus according to claim 7, which is characterized in that the V1=
85% × VNominally, the V2=115% × VNominally, the V3=116% × VNominally, the V4=130% × VNominally, the V5=
84% × VNominally, the V6=70% × VNominally, wherein the VNominallyFor the gauze voltage nominal value of setting；When first setting
Between and the second setting time be 30s.
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| CN201811081964.8A CN109347189A (en) | 2015-12-04 | 2015-12-04 | A kind of power supply system for trolley bus and its method for controlling power supply |
| CN201510880635.XA CN105391150B (en) | 2015-12-04 | 2015-12-04 | A kind of power supply system for trolley bus and its method for controlling power supply |
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| CN108081993B (en) * | 2017-12-20 | 2020-06-23 | 中车株洲电力机车有限公司 | Power supply system and power supply method for urban rail vehicle |
| CN109703416B (en) * | 2018-11-12 | 2020-08-04 | 中车大连机车车辆有限公司 | Electric vehicle segmented interval type ground power supply system and operation method |
| CN111497621A (en) * | 2020-04-30 | 2020-08-07 | 芜湖瑞来电子科技有限公司 | Trolley bus deconcentrator control circuit, control system and working method thereof |
| CN112039179B (en) * | 2020-11-05 | 2021-04-20 | 武汉格罗夫氢能汽车有限公司 | Super capacitor bidirectional pre-charging system for fuel cell hydrogen energy automobile |
| CN112590619A (en) * | 2020-12-24 | 2021-04-02 | 中通客车控股股份有限公司 | Power supply control method and system for double-source trackless electric bus |
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| CN105391150A (en) | 2016-03-09 |
| CN109347189A (en) | 2019-02-15 |
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