CN101596871A - Carry out intermittently being subjected to the vehicle console device of electricity - Google Patents

Carry out intermittently being subjected to the vehicle console device of electricity Download PDF

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Publication number
CN101596871A
CN101596871A CNA2009101466205A CN200910146620A CN101596871A CN 101596871 A CN101596871 A CN 101596871A CN A2009101466205 A CNA2009101466205 A CN A2009101466205A CN 200910146620 A CN200910146620 A CN 200910146620A CN 101596871 A CN101596871 A CN 101596871A
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CN
China
Prior art keywords
electrical storage
storage device
converter
voltage
control
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Granted
Application number
CNA2009101466205A
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Chinese (zh)
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CN101596871B (en
Inventor
丰田瑛一
大石亨一
岛田基巳
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Hitachi Ltd
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Hitachi Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L9/00Electric propulsion with power supply external to the vehicle
    • B60L9/16Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/18Electric propulsion with power supply external to the vehicle using ac induction motors fed from dc supply lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L9/00Electric propulsion with power supply external to the vehicle
    • B60L9/16Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/18Electric propulsion with power supply external to the vehicle using ac induction motors fed from dc supply lines
    • B60L9/22Electric propulsion with power supply external to the vehicle using ac induction motors fed from dc supply lines polyphase motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L5/00Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/04Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L5/00Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/18Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L5/00Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/38Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
    • B60L5/39Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/40Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/53Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14Preventing excessive discharging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15Preventing overcharging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L7/00Electrodynamic brake systems for vehicles in general
    • B60L7/10Dynamic electric regenerative braking
    • B60L7/14Dynamic electric regenerative braking for vehicles propelled by ac motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00Power supply lines for contact with collector on vehicle
    • B60M1/36Single contact pieces along the line for power supply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2200/00Type of vehicles
    • B60L2200/26Rail vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/52Drive Train control parameters related to converters
    • B60L2240/527Voltage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/52Drive Train control parameters related to converters
    • B60L2240/529Current
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/547Voltage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/549Current
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a kind of vehicle console device that carries out intermittently being subjected to electricity; when the non-outfit of contact line interval uses the stored energy of electrical storage device that is provided on the car to travel; for system is worked effectively so that the electrically-charged fully mode of electrical storage device is managed; moreover; in order to ensure safety, the trustworthiness of electrical storage device, realized charge capacity management process, charge and discharge the establishment of guard methods such as electric weight restriction, charging and discharging currents restriction.DC side in DC-to-AC converter possesses release unit and electrical storage device, when accepting supply from the vdc of contact line by power collector, between the input side of DC-to-AC converter and electrical storage device, discharge and recharge and control the value that the charge volume that makes electrical storage device remains regulation by release unit, in the time of can not accepting the supply of vdc from the contact line separation and by power collector, discharge and recharge between the input side of DC-to-AC converter and electrical storage device by release unit, control makes the DC side input voltage of DC-to-AC converter remain the scope of the regulation that can work of DC-to-AC converter.

Description

Carry out intermittently being subjected to the vehicle console device of electricity
Technical field
The present invention relates to for example to be equipped on the control setup of railway vehicle, particularly relate to vehicle console device with electrical storage device that the input side in the DC-to-AC converter that drives main motor is provided with the vehicle of vehicle etc.
Background technology
In the prior art, powered vehicle is a prerequisite by contact line acquisition electric power in the system of electrified railway, but because also there is the interval that can not be equipped with contact line in the cause of the situation of circuit or peripheral equipment etc., just in case vehicle stops in the non-outfit of contact line interval, then moving after carrying out.In such place, vehicle is guaranteed the speed stipulated in advance, in the interval that does not have contact line by with inertia traveling by the driver behavior that waits finish this part can not the supply capability interval travel.
Patent documentation 1: the spy opens the 2005-328618 communique
But, the non-outfit of contact line so interval for spread all over long apart from the time, or exist on multi-frequency ground interval, the speed limit of vehicle etc. and when limiting drive manner in addition, driver behavior requires much skill not stopping in these intervals, and the burden of chaufeur increases.Moreover not having the non-outfit of contact line interval originally is ideal situation, therefore according to the condition of circuit shape etc., even in the outfit relevant, construction with ground-surface contact line in order to make the non-outfit minimized section of contact line also need the operation of difficulty.
Therefore; if have in advance the energy source that can carry out the degree that power once advances at least and utilize this energy to travel in the non-outfit of contact line interval in the car both sides, the burden of then above-mentioned chaufeur or the requirement of ground construction alleviated and effective as entire system.
In order to address these problems, consider to have electrical storage device such as secondary battery and control charging and discharging capabilities is very high and that have a charging capacity of required minimum to be arranged at the car upside with release unit, charge in place with contact line outfit, emit the energy that is stored in described electrical storage device in the place that does not have contact line to be equipped with by release unit, can travel thus.At this moment, even stop at the interval vehicle of the non-outfit of contact line, use the electric power storage energy also can to advance by power, therefore the requirement to driving quality, wayside equipment also relaxes significantly.
But, when utilizing electrical storage device, the distinctive problem points of accumulating system is arranged as energy source.That is, therefore the finite energy that electrical storage device can be accumulated need manage to accumulate sufficient energy as much as possible before entering the non-outfit of contact line interval.
In addition, contact line voltage is also non-constant, but change according to the load condition of periphery or apart from the distance of the outdevice of electric power, therefore need protection not flow through to surpass and allow the electric current of charging and discharging currents, or manage not take place to surpass and allow charge volume and electrically-charged situation of overcharging with condition according to its variation in voltage etc.
That is, need to determine with which kind of condition carry out the control that discharges and recharges of charge or discharge.Moreover most electrical storage devices is disliked overcharging, overdischarge, and the restriction of maximum charging or discharging current is also arranged as a rule.Therefore, when utilizing the energy electrical storage device, can not lack energy accumulation management process, charge and discharge the establishment of the method for electric weight restriction, charging and discharging currents restriction etc.
Summary of the invention
The object of the present invention is to provide and a kind ofly can suitably manage discharging and recharging of electrical storage device, and in the non-outfit of contact line interval, use the energy that is stored in electrical storage device, and the vehicle console device that can travel with self power.
Vehicle console device of the present invention is characterized in that: have: DC-to-AC converter, and it accepts the supply of vdc and the driving of control main motor from contact line by power collector; Semiconductor switching device, it is connected the DC side of this DC-to-AC converter; Electrical storage device, it is connected with this semiconductor switching device; And vdc testing agency, its measurement is connected with the voltage of DC side of the DC-to-AC converter of described semiconductor switching device, switch the master mode of described semiconductor switching device according to the output of described vdc testing agency, thus, when when contact line is accepted the supply of vdc by power collector, to discharge and recharge for point of connection with described DC-to-AC converter from described electrical storage device, and the mode that the charge volume of electrical storage device is remained the value of regulation is controlled described semiconductor switching device, in the time can not accepting the supply of vdc from the contact line separation and by power collector, discharging and recharging, and the mode that the voltage of the point of connection of the DC side of described DC-to-AC converter and described semiconductor switching device remains the scope of regulation controlled described semiconductor switching device from described electrical storage device.
In the vehicle console device that the present invention relates to, in the particular voltage range in the voltage range between the minimum DC input voitage value that magnitude of voltage that the output voltage to the ground power supply system of contact line supply capability relates to and DC-to-AC converter can be controlled, described semiconductor switching device becomes the constant potential master mode, described constant potential master mode is controlled the discrepancy of the electric current of the point of connection of the DC side of described DC-to-AC converter and described semiconductor switching device and control is remained the controlled target voltage that is set in the described particular voltage range with the voltage with this point of connection, in than the also high voltage range of described particular voltage range, form the pattern that constant current charge is controlled for charging current to electrical storage device, owing in than the also low voltage range of described particular voltage range, carry out constant current discharge control for discharge current from electrical storage device, if therefore the voltage more than the constant potential control target is put on the DC side of DC-to-AC converter and the point of connection of described semiconductor switching device, then carry out charging to electrical storage device from described point of connection absorption current, if the voltage below the constant potential control target is put on described point of connection, then described point of connection is emitted electric current and carry out discharge from electrical storage device.Therefore be set at also lower by the target voltage of in advance constant potential being controlled than contact line voltage, when being contacted, contact line carries out charging to electrical storage device, and when contact line leaves by from the discharging and recharging of electrical storage device, appear in the input of inverter direct current with the cooresponding voltage of constant potential control target.The constant potential control target is set at more than the minimum operating voltage of DC-to-AC converter, and therefore under the control voltage of this electrical storage device for the DC-to-AC converter dc voltage, the main motor of DC-to-AC converter can turn round.
As described above; according to the present invention; even contact line is non-be equipped with the interval allowed value that also can protect charging and discharging currents in electrical storage device 7, charge volume in; and in the scope of the ability of electrical storage device 7; the motion of can power advancing, regenerate; and can eliminate the driving restriction that aspect driver behavior, bothers, in addition, allow also that in the wayside equipment side the non-outfit of suitable contact line is interval.
Moreover, in this explanation, be that the center is illustrated with the interval little situation of the non-outfit of contact line, if but capacitance of storage is fully big obviously, and the non-outfit of then cooresponding with it contact line interval can increase.For example in the short route of distance between sites etc., if the capacitance of storage abundance, it is also passable then only to have the electrified railway system of contact line at the station periphery.
Description of drawings
Fig. 1 is the figure of expression embodiments of the present invention.
Fig. 2 is the diagram of block of the structure example of expression charge-discharge controller 13 shown in Figure 1.
Fig. 3 is the diagram of block of the action waveforms example of expression charge-discharge controller 13 shown in Figure 2.
Fig. 4 is the diagram of block of the expression structure example that discharges and recharges control part 21 shown in Figure 2.
Fig. 5 is the characteristic map of SOC lower limit mode generator 50 shown in Figure 1.
Fig. 6 is the characteristic map of SOC ceiling restriction mode generator 48 shown in Figure 1.
Fig. 7 is the controller characteristic curve figure of structure example shown in Figure 1.
Fig. 8 discharges and recharges the movement oscillogram of control part 21 when controlling by structure shown in Figure 4.
Fig. 9 is the preferred characteristics figure of the DC-to-AC converter 4 of structure shown in Figure 1.
Figure 10 is the diagram of block of expression another structure example that discharges and recharges control part 21 shown in Figure 2.
Figure 11 is the characteristic map of the shown in Figure 10 the 2nd SOC ceiling restriction mode generator 48a.
Figure 12 is the performance chart when being controlled by the discharge control part of structure shown in Figure 10.
Figure 13 is the movement oscillogram when being controlled by the discharge control part of structure shown in Figure 10.
[nomenclature]
1 power collector
2 filter reactors
3 filter capacitors
4 DC-to-AC converter
5 main motors
6 release units
6a、6b?IGBT
7 electrical storage devices
8 voltage transformation reactors
9,11 dc voltage detectors
10,12 direct current detectors
13 charge-discharge controllers
14 control device for inverter
16 electric power storage control setups
17 information transmission mechanisms
21 discharge and recharge control part
22,23,55 logical AND functions
24 reverse functions
41,41a a reference value producer
42,45 subtraction devices
43 coefficient devices
44 limitation functions
46 ACR (current control division)
47 PWM modulator
48,48a, 50 mode generators
49,51 multiplicative operators
52,56 switches
53 regeneration test sections
54 comparators
The specific embodiment
Below, describe with accompanying drawing for embodiments of the present invention.
[embodiment 1]
The structure of one embodiment of the invention at first, is described with Fig. 1.As described in Figure, comprise the power collector 1 that is electrically connected with contact line and pass through filter reactor 2 and contact line bonded assembly DC-to-AC converter 4, input side in this DC-to-AC converter 4 is connected with filter capacitor 3, is connected with main motor 5 at the outgoing side of DC-to-AC converter 4.
In addition, be connected with release unit 6 in parallel with filter capacitor 3 as semiconductor switching device.This release unit 6 is connected with the collecting electrode of the 2IGBT6b that flywheel diode is connected in parallel by the emitter of the 1IGBT6a that flywheel diode is connected in parallel and constitutes.The collecting electrode of IGBT6a is connected between filter reactor 2 and the DC-to-AC converter 4, and the emitter of IGBT6b is connected in the direct current low potential side of DC-to-AC converter 4.Be connected with electrical storage device 7 between the collecting electrode of IGBT6b and emitter, electrical storage device 7 is chosen as and has the low terminal voltage of minimum DC input voitage value that can control than DC-to-AC converter 4.
In addition, be respectively arranged with the dc voltage detector 9 of magnitude of voltage (Vfc) of the point of connection of the DC side that detects DC-to-AC converter 4 and described semiconductor switching device; Detection is to the inverter direct current detector 10 of the value of the received current (Iinv) of DC-to-AC converter 4; The secondary battery dc voltage detector 11 of the value of the terminal voltage (Vch) of detection electrical storage device 7; And detect from the electrical storage device direct current detector 12 of electrical storage device 7 to the value of the electric current (Ich) of the collecting electrode output of IGBT6b.And, be connected with charge-discharge controller 13 at release unit 6.Moreover be connected with control device for inverter 14 in DC-to-AC converter 4, and be connected with electric power storage control setup 16 at electrical storage device 7, between electric power storage control setup 16 and charge-discharge controller 13, be provided with information transmission mechanism 17.Electric power storage control setup 16 constitutes, and the charge volume or the internal temperature of detection electrical storage device 7 also calculated and allowed maximum charging and discharging currents, and these information are passed to charge-discharge controller 13.
Fig. 2 is the structure example of the driving method of expression release unit 6 as semiconductor switching device shown in Figure 1.When making release unit 6 work, discharge and recharge control part 21 the conduction and cut-off signal is made as conducting, and the pwm pulse Pp of the pulse width that is associated with controlled target of output.This pulse, and is given Pn, Pp and IGBT6a and IGBT6b by logical AND function 22,23 by reverse function 24 logic inversions and generate Pn in a side.
The driving method of the release unit 6 of this structure is widely known circuit type, and it can carry out connecting the action of high pressure (Vfc) side boosting of power supply or load and streaming current and opposite with it from high pressure (Vfc) side step-down and to the action of two directions of low pressure (Vch) side flow electric current from low pressure (Vch) side direction that connects electrical storage device 7 continuously.
Fig. 3 represents its action waveforms.Ich just is defined as with the direction that reactor 8 flows to voltage transformation from electrical storage device 7, if give as (Pp of Fig. 3 shown in a), release unit input voltage Vb then shown in Figure 2 become with at the waveform of voltage transformation with the sense of current that flows in the reactor 8 irrelevant (Fig. 3 b).Apply this voltage and electrical storage device voltage (Vch) at voltage transformation with reactor 8, so Ich becomes current waveform shown in (Fig. 3 c) from storage battery.
At this, the electric current (I) that flows in inductance (L) is represented with (1) formula as everyone knows with the relation of both end voltage (V).
L·di/dt=V……(1)
At this, t represents the time.
In addition, each physical quantity shown in Figure 3 is as giving a definition
The time of ton:Gate b conducting
The time that toff:Gate b ends
The output cycle of the pulse of tc:Gate b
Δ Ion: at the increment of the Ich of ton time durations
Δ Ioff: at the increment of the Ich of toff time durations
Δ Ic: at the increment of the Ich of tc time durations
Vav: at the aviation value of the Vb of tc time durations
If ton, toff are fully little, the voltage transformation that (1) formula is applicable to Fig. 2 is with reactor 8, then during Gate b conducting IGBT6a by and the IGBT6b conducting, therefore,
L·ΔIon=(Vch-0)·ton……(2)
IGBT6a conducting and IGBT6b ended when Gate b closed, therefore,
L·ΔIoff=(Vch-Vfc)·toff……(3)
In addition,
tc=ton+toff……(4)
ΔIc=ΔIon+ΔIoff……(5)
Vav=Vfc·toff/tc……(6)
If therefore get (2) formula and (3) formula and and arrangement, then can access
L·ΔIc=(Vch-Vav)·tc……(7)
If relatively (1) formula with (7) formula can understand Δ Ic promptly the increment of the Ich of tc time durations obtain and will put on voltage transformation with the average voltage between the tc at the two ends of reactor 8 be (Vch-Vav) direct current put on the rate of change of the equal electric current of voltage transformation usefulness reactor 8.(2) formula, (3) formula with irrespectively set up with the sense of current that reactor 8 flows at voltage transformation, and Vab can control by ton/tc shown in (6) formula, so can control discharging and recharging electrical storage device 7 continuously with the structure of Fig. 2.Therefore, if control makes Vav>Vch toff (or ton) time, then Ich moves to minus side (charged side), if control toff (or ton) time makes Vav<Vch, then Ich moves to positive side (discharge side).
Next, describe for the control that discharges and recharges by impulse electricity control part 21.Fig. 4 is the diagram of block of the expression structure example that discharges and recharges control part 21 shown in Figure 2.Fig. 7 is the figure that discharge and recharge control part 21 electric current and voltage controller characteristic curve when controlling of expression by structure shown in Figure 4.Discharge and recharge in the control part 21 at this, deduct the value of the both end voltage Vfc of the filter capacitor 3 that detects with dc voltage detector 9 by subtraction device 42 from the output (Vo) of a reference value producer 41 that produces control target, multiply by suitable COEFFICIENT K 1 for this residual quantity by coefficient device 43, calculate the circuit breaker current expected value IchP1 that size is determined pro rata with described voltage residual quantity, wherein said control target ratio is low to the output voltage values (Vs) of the ground side power supply of contact line service voltage, than the minimum voltage value that can control (Vbo) height relevant with the input voltage Vfc of DC-to-AC converter 4.
When Vfc was bigger than a reference value Vo, the current control target IchP1 of release unit 6 became negative.Therefore be shown in is obtained the electric current side from the DC side of DC-to-AC converter 4 and is promptly moved to reducing the Vfc side as described later.Vfc was than a reference value Vo hour, and the controlled target of release unit 6 just becomes, and with above-mentioned opposite, electric current was moved to the DC side output of DC-to-AC converter 4 and to improving the Vfc side.Undertaken inverter input voltage Vfc is remained the action that constant action is constant potential control by this motion.
Next, by limitation function 44, with the value of IchP1 be limited in from more than the minL to the scope below the maxL, and will be worth as final circuit breaker current expected value IchP4.MinL is the negative value by IchP2 and SOC computing and output, and described IchP2 allows maximum charging current value by electric power storage control setup 16 by what information transmission mechanism 17 obtained with negative value representation, and described SOC is the value of the charge volume of expression electrical storage device 7.In addition, this value is that value behind the IchP2 is multiply by in the output of SOC ceiling restriction mode generator 48, export 0 when wherein the threshold value 3 of SOC ceiling restriction mode generator 48 peak of allowing for expression at input SOC and SOC is above, SOC output 1 when following than smaller another threshold value of threshold value 34, and, the intermediate value of output from 0 to 1 between threshold value 3, threshold value 4.
MaxL is the positive value by IchP3 and SOC computing and output on the other hand, and described IchP3 allows maximum discharge current value by electric power storage control setup 16 by what information transmission mechanism 17 obtained with positive value representation.This value is that value behind the IchP2 is multiply by in the output of SOC lower limit unrestricted model producer 50, export 0 when the threshold value 1 of the minimum that described SOC lower limit unrestricted model producer 50 is allowed for expression at input SOC and SOC is following, SOC output 1 when above than bigger another threshold value of threshold value 12, and, the intermediate value of output from 0 to 1 between threshold value 1, the threshold value 2.
For the final circuit breaker current expected value IchP4 that so obtains, the Ich that will detect by electrical storage device current detecting part 12 from the direction of electrical storage device 7 discharges as just and carry out inverse feedback, carry out disposal such as proportional integral (PI) by current control division (ACR) 46, become the angle of flow instruction.Is to have with angle of flow to instruct the impulse singla of proportional pulse width by PWM inverter 47 with this value transform, the Pp output of representing as Fig. 2.Comprise sense of current, can control the increase and decrease of Ich as the explanation in above-mentioned Fig. 3 by the pulse width of release unit 6.
IchP4 is limited at the scope from IchP2 to IchP3, and IchP4 becomes the final control target of Ich.By this function, electrical storage device 7, forbids the discharge of electrical storage device and guarantees the minimum charge volume of allowing when allowing that charge volume is following minimum, and electrical storage device 7, is forbidden the charging of electrical storage device 7 and guaranteed the highest charge volume of allowing when allowing that charge volume is above the highest.
In addition, IchP4 more than minL (because be the value of bearing, so as absolute value below allowed value), minL is allowing more than the maximum charging current value IchP2 (because be the value of bearing, therefore as absolute value below allowed value), and IchP4 is below maxL, and manL allowing below the maximum discharge current value IchP3, therefore the charging and discharging currents of electrical storage device 7 is limited in maximum and discharges and recharges in the allowable current value.
Fig. 5 represents the characteristic of the SOC lower limit unrestricted model producer 50 of above-mentioned explanation.Similarly Fig. 6 represents the characteristic of the SOC ceiling restriction mode generator 48 of above-mentioned explanation.
The charge-discharge characteristic of the electrical storage device 7 when in addition, Fig. 7 represents to carry out to be controlled by Fig. 4.In the Vfc ratio control low moment of voltage-target Vo, the control target IchP1 of Ich is for just, promptly to determine expected value to the mode of the direction control current of discharge from electrical storage device 7, in the Vfc ratio control high moment of voltage-target Vo, the control target IchP1 of Ich promptly determines expected value in the mode to electrical storage device 7 electrically-charged direction control current for negative.
In addition, when Vfc departed from this control voltage-target Vo significantly, this IchP1 made positive side be limited by minL, and become the characteristic of Fig. 7 by maxL restriction, minus side by limitation function 44.It is imported the current control division ACR46 of its back segment as IchP4, and this obtains the characteristic of Fig. 7 by follow-up control.
Action when illustrating that with Fig. 8 the vehicle that carries vehicle console device of the present invention passes through the non-outfit of contact line interval.At this, Iinv represents the received current of DC-to-AC converter 4, and Vfc represents the input voltage of DC-to-AC converter, and Idc represents the supplying electric current from contact line, and Ich represents the charging and discharging currents of electrical storage device 7, and SOC represents the charge rate of electrical storage device.
Advance at A point beginning power, as (state that Fig. 8 advances with power when obtaining predetermined electric current shown in a) enters the non-outfit of contact line interval at B point as the Fig. 8 in the outfit interval of contact line.Owing to accept contact line voltage at the A point, therefore the input voltage Vfc of DC-to-AC converter 4 is suitable with contact line voltage shown in (Fig. 8 b).Release unit 6 becomes the charging action in this voltage regime as shown in Figure 7, therefore supplies with the received current of DC-to-AC converter 4 this moment shown in (Fig. 8 c) by power collector 1 from contact line.
Because release unit 6 is positioned at the charging operating space, so electrical storage device 7 becomes charge condition by contact line voltage, and the effect of the SOC ceiling restriction mode generator 48 by Fig. 4 when perhaps fully charging becomes charging current blocked and is 0 state roughly.(Fig. 8 d) is marked with the state that this charging current is blocked at the A point.
Therefore, (Fig. 8 e) figure is shown with SOC roughly near the ceiling restriction value.If enter the non-outfit of contact line interval at the B point, then shown in (Fig. 8 c), lose from the supply of the electric current of contact line, Vfc plunges shown in (Fig. 8 b), if but Vfc drops to the controlled target Vo of release unit 6, then 42,43 constant potential controllable function by Fig. 4 begins discharge Vfc being remained near the Vo, shown in the B-C interval of (Fig. 8 d) by release unit 6 supplying electric currents.This moment, electrical storage device 7 discharged so charge volume SOC minimizing shown in (Fig. 8 e).
Moreover DC-to-AC converter more than 4 changes for input voltage to be controlled to obtain constant electric power, and therefore (Fig. 8 a) represents and the situation that increases received current by the slippage of the voltage behind the B point accordingly.
Next, if vehicle enters contact line once more at the C point and is equipped with the interval, then apply contact line voltage once more as (Fig. 8 b) DC-to-AC converter that is shown in 4, but as shown in Figure 7, this moment, release unit 6 changed the charging action into by the rising of Vfc, began charging shown in (Fig. 8 d).Therefore as (Fig. 8 c) shown in, the electric current of supplying with from contact line be as (electric current of the input DC-to-AC converter 4 of Fig. 8 shown in a) and the total of the electric current that release unit 6 is imported for electrical storage device 7 is charged shown in (Fig. 8 d).
After this, advance if close power, then shown in the D point of (Fig. 8 c), the power of DC-to-AC converter 4 magnitude of current Iinv that advances reduces from the supplying electric current Idc of electric current line, if the charging of electrical storage device 7 is finished, then shown in E point the charging current amount from the supplying electric current Idc minimizing of contact line.And, it is followingly to carry out automatically that the charging of electrical storage device 7 is finished, both: charge volume SOC is risen by charging, and reach the threshold value 3 of Fig. 6, thereby 48 the output of Fig. 4 output 0, its as a result minL become 0, on the other hand because apply contact line, therefore IchP1 is shown as negatively, so controlled target current value I chP4 becomes 0.
As the lime light in being suitable for of system of the present invention have following aspect.Most vehicular drive, is controlled to the mode of electrical motor output constant output in the scope of short time of the alter operation of not driving considering the sensation of riding of vehicle with DC-to-AC converter.Therefore importing electric power also is controlled to be and obtains constant electric power.In the vehicle that carries device of the present invention, when the interval steering vehicle of the non-outfit of contact line, carry out driver behavior so that DC-to-AC converter 4 when obtaining the above electric power of maximum power that electrical storage device 7 can supply with, even it is electrical storage device 7 carries out maximum discharge, also not enough and inverter input voltage Vfc can not be remained controlled target voltage from the electric power of electrical storage device 4.
Moreover, as mentioned above because to import the mode control inverter device 4 of constant electric power, therefore the input voltage Vfc of DC-to-AC converter 4 departs from controlled target voltage, and becomes below the minimum control voltage Vbo of DC-to-AC converter, and DC-to-AC converter 4 becomes can not be controlled, shut down.For fear of this kind situation, also consider following method as an example, that is: the driving of the electric power more than the maximum discharged power that does not obtain electrical storage device 7 aspect the processing in the non-outfit of contact line interval.If but can automatically avoid becoming that DC-to-AC converter 4 becomes situation below the minimum control voltage Vbo then more effective as above-mentioned.
The characteristic of the graphical presentation of Fig. 9 good DC-to-AC converter 4 aspect system of the present invention suitable.Promptly, is 0 at the minimum control magnitude of voltage Vbo as the DC-to-AC converter 4 of Fig. 9 with the peak output Characteristics Control relevant with the input voltage Vfc of DC-to-AC converter 4, peak output characteristic value when conduct is common more than the value Vba of the regulation more bigger than Vbo, control makes peak output decrescence between Vba, Vbo.By the maximum characteristic of the output of control inverter device 4 like this, even DC-to-AC converter 4 obtains the above electric power of maximum discharged power of electrical storage device 7, as if the Vfc reduction and near Vbo, it is following and Vfc remains on more than the Vbo that then the input of DC-to-AC converter 4 reduces and become the discharged power of electrical storage device, therefore can avoid DC-to-AC converter 4 to reach the state that can not control, shut down.
[embodiment 2]
Next, expression discharges and recharges another embodiment of control part 21.Figure 10 is the diagram of block of expression another structure example that discharges and recharges control part 21 shown in Figure 2.Figure 11 is the SOC ceiling restriction mode generator 48 that is used for structure shown in Figure 10, the characteristic map of 48a.Figure 12 is the figure of the electric current and voltage controller characteristic curve of expression when carrying out control by structure shown in Figure 10.
Present embodiment is that the capacitance of storage of electrical storage device 7 is big and for the capacitance of storage that travels and need in non-contact line interval, the actv. embodiment when having surplus aspect capacitance of storage.The embodiment of Fig. 4 is a purpose to travel in non-contact line interval reliably, therefore can be override travelling of non-contact line interval reliably with capacitance of storage, be equipped with intervally if also enter contact line as shown in Figure 8, then charge-discharge controller 13 work are with till being charged to the SOC of the upper limit of allowing to electrical storage device.Therefore, the characteristic that has the regenerated energy when being difficult to absorption and regeneration.This example is to utilize the described surplus of capacitance of storage and carry out regenerated energy easily and absorb.
The control part 21 that discharges and recharges of present embodiment appends following parts for the structure of Fig. 4.Specifically, a reference value producer 41 shown in Figure 4 as the 1st reference generator 41, has been appended therewith relatively: the 2nd reference generator 41a; The switch 52 of the output of switching a reference value producer 41 and the output of a reference value producer 41a; Detect the regeneration test section 53 of regenerative braking operation; The comparator 54 of the value of the charge volume SOC overshoot of detection electrical storage device 7; And the output of input regeneration test section 53 and the output of described comparator 54, and the logical AND function 55 that switch 52 is exported as follows, that is: beyond when regeneration and the value of SOC surpass below shown in threshold value 3p the time, be chosen as the output of the 2nd a reference value producer 41a, be chosen as the output of a reference value producer 41 in addition, moreover, SOC upper limit mode generator 48 shown in Figure 4 as a SOC upper limit mode generator 48, is appended therewith relatively: input SOC and generation are for the 2nd SOC upper limit mode generator 48a of the multiplying value of charging current boundary IchP2; And to the output of when regenerating, selecting SOC upper limit mode generator 48, the switch 56 that the output of selection the 2nd SOC upper limit mode generator 48a is switched under condition in addition.
In addition, for example, no graphic driving with device in output when representing the control signal of operation of the relevant deceleration made by chaufeur, the test section 53 of regenerating detects this signal and sees regeneration as.And then, second a reference value producer 41a output and the consistent or extremely close value (Vso) of output voltage values Vs with Vs to the ground side power supply of contact line service voltage, the 2nd SOC ceiling restriction mode generator 48a compares with a SOC ceiling restriction unrestricted model producer 48 and has the lower higher limit of charge capacity SOC, therefore constitute: when threshold value 3p is above, export 0 than threshold value shown in Figure 63 low threshold value 3p and SOC having value, SOC exports 1 when another threshold value 4p more smaller than threshold value 3p is following, and, threshold value 3p, the intermediate value of output from 0 to 1 between the threshold value 4p.Figure 11 represents the relation of the characteristic of a SOC ceiling restriction mode generator 48 and the 2nd SOC ceiling restriction mode generator 48a.
According to the formation of present embodiment, switch 4 following operating states by switch 52,56.
(1) when regeneration and SOC are that the threshold value 3p of Figure 11 is when above
(2) when regeneration and SOC are that the threshold value 3p of Figure 11 is when following
(3) non-when regeneration and SOC are that the threshold value 3p of Figure 11 is when above
(4) non-when regeneration and SOC are that the threshold value 3p of Figure 11 is when following
(1) situation of (2) is to select the output Vo of first reference value producer 41 by switch 52, selects the output of SOC ceiling restriction mode generator 48 by switch 56.
Therefore with Fig. 4 become identical control structure and action also as Fig. 4 illustrate can be charged to threshold value 3 till.
(4) situation is to select the output Vo of first reference value producer 41 by switch 52, selects the output of SOC ceiling restriction mode generator 48a by switch 56.Therefore identical with the action that illustrates at Fig. 4, but charge volume SOC is limited to till the threshold value 3p.Promptly for the high limit of tolerance threshold value 3 of electrical storage device 7, the residual quantity surplus ground that has threshold value 3 and threshold value 3p stops charging.
(3) situation is to select the output Vso of the second a reference value producer 41a by switch 52, selects the output of SOC ceiling restriction mode generator 48 by switch 56.The signal of importing subtraction device 42 this moment and comparing with DC-to-AC converter input voltage Vfc becomes Vso.Therefore carry out the constant potential control as controlled target by subtraction device 42, coefficient device 43 with Vso.
Figure 12 represents the characteristic of the constant potential control of this moment.Vso and contact line output voltage V s are roughly the same, therefore as can be known clear and definite from Figure 12, even when the interval DC-to-AC converter input voltage Vfc by power collector 1 input of contact line outfit is lower than contact line output voltage, promptly, if this vehicle and near this vehicle any electrical equipment in addition consume electric power and reduce contact line voltage thus, then above-mentioned constant potential control is moved to the discharge side.
The situation of this action in (4) is charge volume when surpassing the non-regeneration of threshold value 3p, and the mode that makes charge volume SOC return 3p when therefore selecting non-regeneration is moved.That is, when surpassing threshold value 3p during regeneration and charging, also can carry out discharging action and can make SOC return threshold value 3p even be equipped with the interval at contact line.Therefore so that charge volume SOC moves near the mode of threshold value 3p, shown in above-mentioned (1) (2), can control during regeneration and be charged to till the threshold value 3 beyond when regeneration, therefore can the absorption and regeneration energy.
Next the example of the action of present embodiment is described by Figure 13.At this, Iinv represents the received current of DC-to-AC converter 4, and Vfc represents the input voltage of DC-to-AC converter 4, and Idc represents the supplying electric current from contact line, and Ich represents the charging and discharging currents of electrical storage device 7, and SOC represents the charge rate of electrical storage device 7.Shown in this example (Figure 13 e), represented to enter the interval and regeneration of the non-outfit of contact line under the state till contact line is equipped with interval SOC ceiling restriction value threshold value 3p when electrical storage device 7 is charged to non-regeneration, entered contact line thereafter and be equipped with example interval and that power is advanced.This condition under the situation of embodiment shown in Figure 4, initial contact line be equipped with interval SOC is charged to high limit of tolerance limits value threshold value 3 till, therefore can not the absorption and regeneration energy and the example of regeneration akinesia non-be equipped with in the interval regeneration of contact line.
Carrying out power at the A point at first at first advances.Advance the Vfc reduction so that some contact line voltage descends (Figure 13 b) by power, but the condition of this state and above-mentioned (4) is suitable, therefore the constant potential controlled target is that Vo and release unit 6 are the charging operating state, but SOC is positioned at threshold value 3p, therefore the 2nd SOC ceiling restriction mode generator 48a is output as 0, because selecting this output and minL is 0, therefore side by side do not discharge and recharge, be supplied in inverter as (Figure 13 c) from the electric current I dc of contact line.Because cut off the electric current of advancing that runs out of steam after power is advanced, Vfc temporarily recovers, but enter contact line non-outfit interval and identical, drop to the constant potential control target Vo of release unit 6 with the situation of Fig. 4 at the B point.
Inertia is advanced under this state, even therefore release unit 6 carries out constant potential control, the circuit breaker current Ich of (Figure 13 d) also is almost 0.If after this regenerate, then utilize the state of above-mentioned (2) promptly to pass through the output that switch 56 is selected a SOC ceiling restriction mode generator 48, but SOC is positioned near the threshold value 3p, therefore exports non-0 limited value as can be seen from Figure 11 at the C point.Thus with the negative limited value of minL output and the mode that suppresses the rising of the DC-to-AC converter input voltage Vfc that caused by regeneration to utilize the constant potential controllable function of release unit to carry out the charging of electrical storage device 7 be the absorption of regenerated electric power, SOC surpasses threshold value 3p and becomes the state of above-mentioned (1) and rise to threshold value 3.
If close regeneration at the D point, then become the state of above-mentioned (3), therefore switching the constant potential control target of release unit 6 by switch 52 and switch to Vso is the constant potential control of target, Vfc rises near the Vs shown in (Figure 13 b).And side by side select output and the minL of SOC ceiling restriction mode generator 48a to become 0 by switch 56.
That is, if to electrical storage device 7 be charged as 0 and Vfc than low with the output Vso about equally of contact line, then become the state that carries out discharging action.Be equipped with intervally if after this enter contact line, discharge and Idc flows outside vehicle from release unit 6 then as when consuming electric power beyond (Figure 13 c), (Figure 13 d) institute vehicle that is shown at the E point.Power is advanced and Vfc further descends if begin at F point vehicle, and then the constant potential control as release unit 6 shown between the F-G of (Figure 13 d) produces reaction to this, and more discharges.If further reduce SOC and SOC reaches threshold value 3p by the discharge between the D-G, then by comparator 54 counter-rotating by switch 52 switching controls a reference values and switch to the state of above-mentioned (4), the controlled target voltage of the constant potential control of release unit 6 becomes Vo.The controlled target voltage Vo of constant potential control is set at the value lower than contact line voltage, so release unit 6 stops discharge and returns the charging operating state.
But, G order after soon, SOC is positioned near the threshold value 3p, thus minL roughly be shown as 0 and charging current be roughly 0.After this to close before the H point that power advances during, from the state of discharging and recharging of electrical storage device 7 for roughly stopping, therefore as (Figure 13 c) DC-to-AC converter that is shown in 4 only supply with electric current from contact line.
Moreover, as can be known clear and definite, all return the state of order at the charge condition, the switch 52,56 that arrive the moment electrical storage device 7 that G order at A, even therefore repeat same driving, the also identical driving that can carry out in the non-outfit of electric car interval with above-mentioned explanation.And Figure 13 does not represent that still for the action of advancing at the non-power that is equipped with the interval of contact line, whole actions is carried out, and therefore can describe in the same manner with the explanation of Fig. 4 by threshold value 3 being replaced with threshold value 3p in the explanation of Fig. 4 under the state of (4).
Above, according to present embodiment, be equipped with the control of charging in the interval so that the charge volume SOC of electrical storage device 7 is the value more lower slightly than the maxim of allowing at contact line, therefore after next entering the non-outfit of electric car interval, the power that not only can carry out DC-to-AC converter 4 action of advancing, and the action of can regenerating, this moment is by 7 chargings can absorb energy to electrical storage device.

Claims (8)

1. one kind is carried out intermittently being subjected to electric vehicle console device, it is characterized in that:
Have: DC-to-AC converter, it accepts the supply of vdc and the driving of control main motor from contact line by power collector; Semiconductor switching device, it is connected the DC side of this DC-to-AC converter; Electrical storage device, it is connected with this semiconductor switching device; And vdc testing agency, its measurement is connected with the voltage of DC side of the DC-to-AC converter of described semiconductor switching device,
Switch the master mode of described semiconductor switching device according to the output of described vdc testing agency, thus, when when contact line is accepted the supply of vdc by power collector, to discharge and recharge for point of connection with described DC-to-AC converter from described electrical storage device, and the mode that the charge volume of electrical storage device is remained the value of regulation is controlled described semiconductor switching device, in the time can not accepting the supply of vdc from the contact line separation and by power collector, discharging and recharging, and the mode that the voltage of the point of connection of the DC side of described DC-to-AC converter and described semiconductor switching device remains the scope of regulation controlled described semiconductor switching device from described electrical storage device.
2. vehicle console device according to claim 1 is characterized in that:
The maxim of the terminal voltage of described electrical storage device is chosen as the low voltage of minimum DC input voitage value that can control than DC-to-AC converter, and in the particular voltage range in the voltage range between the magnitude of voltage of the output voltage of the ground power supply system that electric power is supplied in contact line and minimum DC input voitage value that DC-to-AC converter can be controlled, described semiconductor switching device becomes the constant potential master mode, described constant potential master mode is controlled to the discrepancy of the electric current of the point of connection of the DC side of described DC-to-AC converter and described semiconductor switching device and with the voltage of this point of connection remains the controlled target voltage of setting in described particular voltage range mode with control, in than the high voltage range of described particular voltage range, described semiconductor switching device becomes for the pattern of carrying out constant current charge control to the charging current of electrical storage device, in than the low voltage range of described particular voltage range, described semiconductor switching device becomes the pattern of carrying out constant current discharge control for the discharge current from electrical storage device.
3. vehicle console device according to claim 2 is characterized in that:
For the control target of the constant current charge of described charging current control is the value of the electrical storage device maximum charging current value of allowing, is the value of the electrical storage device maximum discharge current value of allowing for the control target of the constant current discharge control of discharge current.
4. vehicle console device according to claim 3 is characterized in that:
Reaching the higher limit of allowing for the control target of the constant current charge of described charging current control at the charge capacity of electrical storage device and be made as zero when above, is that the lower limit of allowing is made as zero when following for the control target of the constant current discharge control of described discharge current at the charge capacity of electrical storage device.
5. vehicle console device according to claim 4 is characterized in that:
For in allowing, and charge capacity is when becoming near the higher limit of allowing at the charge capacity of electrical storage device, makes the value of the maximum charging current value of allowing than described electrical storage device for the control target of the constant current charge control of described charging current low; For in allowing, and charge capacity is when becoming near the lower limit of allowing at the charge capacity of electrical storage device, makes the value of the maximum charging current value of allowing than described electrical storage device for the control target of the constant current discharge control of described discharge current low.
6. vehicle console device according to claim 2 is characterized in that:
Described DC-to-AC converter has near the effect that reduces the output of DC-to-AC converter the high-voltage side of the minimum DC input voitage value that can control with the input voltage and the residual quantity of the minimum DC input voitage value that can control accordingly.
7. vehicle console device according to claim 4 is characterized in that:
Situation when situation beyond when distinguishing regeneration braking effect and regeneration braking effect and set the higher limit of the charge capacity of described electrical storage device, the higher limit that the charge capacity of the electrical storage device the when higher limit that the charge capacity of the electrical storage device beyond during regeneration braking effect is allowed is set at than regeneration braking effect is allowed is low.
8. vehicle console device according to claim 7 is characterized in that:
Beyond when described regeneration braking effect, and during the higher limit that the charge capacity under the situation beyond the charge capacity of electrical storage device surpasses when regeneration braking effect is allowed, will switch near the value the output voltage for the controlled target voltage that the DC side of described DC-to-AC converter and the constant potential of the voltage of the point of connection of described semiconductor switching device are controlled.
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