CN108183489A - Tramcar engineering electric power system load balance control method - Google Patents
Tramcar engineering electric power system load balance control method Download PDFInfo
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- CN108183489A CN108183489A CN201711448845.7A CN201711448845A CN108183489A CN 108183489 A CN108183489 A CN 108183489A CN 201711448845 A CN201711448845 A CN 201711448845A CN 108183489 A CN108183489 A CN 108183489A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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Abstract
Tramcar engineering electric power system load balance control method, is related to technology of track traffic and power supply control technical field.The present invention includes the following steps:1) monitoring substation judges whether have vehicle carrying out high current quick charge in its monitoring range, and monitoring information is reported to master station；2) master station judges whether be likely to occur overload in the range of this master station, if the monitoring information then reported according to each monitoring substation cuts off the charge circuit for not carrying out high current quick charge in the range of this master station；3) when monitoring substation detects that high current quick charge has been completed, information reporting will be completed to master station；4) after master station receives completion information, master station judges whether exited from the state for be likely to occur overload in the range of this master station, if then discharging cut-off charge circuit.The present invention makes full use of the cruising ability of vehicle-mounted energy storage vehicle, it is ensured that the safe and reliable operation of electric power system.
Description
Technical field
The present invention relates to technology of track traffic and power supply control technical field.
Background technology
At present, the popularization and application of modern tram engineering at home are more and more, but now more city due to landscape,
Planning and other reasons employ the tramcar of vehicle-mounted energy storage mode powered operation, it is desirable that are completely not provided with contact net completely
Or contact net is not provided with compared with macroportion range, it is set by charging rail for setting AT STATION or in the range of other partial sections etc.
It applies, the time stopped to receive or discharge passengers AT STATION using vehicle, the energy storage device installed on vehicle carries out high-power quick charge, leads to
It crosses vehicle-mounted energy storage device and the mode that traction electric energy is provided is run to vehicle.
In the electric power system scheme of modern tram, place is introduced using decentralized power-supply pattern nearby substantially
Several times 10kV power supplys of power grid, using Single-ring network, the medium-pressure electricity supply ring network structure of " big ring string " mode of connection, the 10kV of introducing
Power supply point is less, and electric substation's quantity in ring string is more, and each electric substation is responsible for several stations or other stations nearby
The charging unit of point provides power supply.
Problems with exists in the prior art：
Since driving establishment vehicle train operation density is larger, engineering long term considers to be set as 20 pairs/hour or more substantially
Driving logarithm.Each station is divided into uplink and downlink platform, when vehicle is run to station, is initiated as soon to matching on its vehicle
The energy storage such as super capacitor put facility carries out high-power quick charge, since the time stopped is shorter (generally within 30 seconds),
Electric current and power are larger, and general voltage is up to 500~900V, and electric current is up to more than 1000A, due to the appearance of vehicle-mounted energy storage facility
Amount configuration difference or even the vehicle having can reach more than 2100A.
Because the probabilistic relation of vehicle operation, multiple row vehicle may occurs multiple in a certain section of short time range
Station or multiple charging rails are carried out at the same time the situation of high-power quick charge so that substation facilities or 10kV external power supplies introduce
There is short-time overload in circuit, and local power network is caused to impact, and more than its permissible load value, under serious conditions or leads to over current protection
Trip operation is protected, leads to the generation of accident of power supply, influences the normal operation of circuit.
For avoid the situation appearance or will cause substation facilities installed capacity or introduce power supply point capacity increase compared with
Quantity increase that is more or leading to external power supply introduction point is more, can be to various aspects such as construction investment, the exploitativenesses of engineering
Cause serious influence.Simultaneously because vehicle operation is charged as service intermittent standard, the charging time of main track vehicle AT STATION
General interval about 2 minutes or more, charges about 30 seconds so that electric power system facility its power supply capacity and vehicle on-board under normal circumstances
The cruising ability of energy storage device is underused, and is unfavorable for resource-sharing, is also unfavorable for the energy-saving run of entire electric power system.
Due to there is the situation there are certain probability, if frequently occurred since overload electric current leads to protective device mistake
Current protection trips, and will to lose normal power supply in entire engineering wide range, and not only influence equipment uses the longevity
More seriously by the normal operation for influencing this tramcar engineering or even there is the serious consequence stopped transport in life.
Therefore, the charging mould run for the medium-pressure electricity supply ring network structure and vehicle using " big ring string " mode of connection
Formula proposes a kind of electric power system Load balanced control scheme based on digital communications network technology, realizes electric power system scheme
Optimization avoids the high-power quick charge simultaneously of excessive vehicle from causing, more than the Overload outlet allowed, to make full use of power supply
The cruising ability of the power supply capacity of system and vehicle-mounted energy-storage type vehicle, an electric substation supply simultaneously to the charging rail at multiple stations
Electricity, a 10kV external power supply can power to more electric substations；Reasonable distribution respectively charges charging time of rail, optimization power supply
The installed capacity of system.
The excessive occupancy to urban distribution network power supply point and capacity can be reduced, reduces the impact to urban distribution network capacity, is reduced
The enforcement difficulty of engineering reduces engineering construction and operation maintenance expense.The energy-saving and environmental protection of realization modern tram line project,
Economic and guarantee operation security is reliable.
Invention content
Having for the impact electric power system of overload in short-term can be avoided the technical problem to be solved by the invention is to provide a kind of
Rail electric car engineering electric power system load balance control method.
The present invention solve the technical problem the technical solution adopted is that, tramcar engineering electric power system load balancing control
Method processed, which is characterized in that include the following steps:
1) monitoring substation judges whether have vehicle carrying out high current quick charge in its monitoring range, and monitoring is believed
Breath reports to master station；
2) master station judges whether be likely to occur overload in the range of this master station, if then according to each monitoring substation
The monitoring information reported cuts off the charge circuit for not carrying out high current quick charge in the range of this master station；
3) when monitoring substation detects that high current quick charge has been completed, information reporting will be completed to master station；4)
After master station receives completion information, whether master station is judged in the range of this master station from the shape for being likely to occur overload
It is exited in state, if then discharging cut-off charge circuit.
Further, the step 4) is：
Disposably the charge circuit of all cut-outs is all discharged.
The step 4) is：
According to prefixed time interval, foundation is initially switched off the charge circuit that the sequence first discharged gradually discharges cut-out.
Alternatively, the step 1) is：
The current effective value of monitoring substation acquisition charge circuit and the current duration for reaching this virtual value, if the two is all
Reach predetermined threshold value and then indicate that vehicle is carrying out high current quick charge, and then reports monitoring information.
The step 2) is：
Whether the current value of transformer equipment input current where master station detects it is beyond preset value and beyond default
The duration of value judges whether be likely to occur overload in the range of this master station, if then being reported according to each monitoring substation
Monitoring information by the range of this master station do not carry out high current quick charge charge circuit cut off.
The beneficial effects of the invention are as follows：
1) in method provided by the invention, existing electric power system scheme and scale are not impacted.
2) in method provided by the invention, Load balanced control system can be monitored operation automatically, be avoided that power supply
Overload in short-term caused by system installed capacity and external power supply capacity is impacted.Make full use of the continuation of the journey energy of vehicle-mounted energy storage vehicle
Power, it is ensured that the safe and reliable operation of electric power system.
3) in method provided by the invention, the transmission of data information, Load balanced control are realized using digital communications network
System scale can be easy to be adapted to according to the quantity size of live charge circuit.
4) in method provided by the invention, can different action logic schemes, logic criterion side be selected according to field condition
Case is simple and reliable.
Description of the drawings
Fig. 1 is that the control system that present invention side is related to forms schematic diagram.
Fig. 2 is this Load balanced control system acting logical schematic.
Specific embodiment
Referring to Fig. 1,2.A set of Load balanced control system being set in electric substation and between electric substation is configured first.It is negative
Lotus equilibrium master station device is sent and is received other loads for being set to live charge circuit based on digital communications network technology
The information of equilibrium monitoring sub-station device realizes the Load balanced control of electric power system.
The present invention provides a kind of electric power system Load balanced control scheme based on digital communications network technology, and the number is logical
Communication network can be the GOOSE technology or other general digital communications networks of IEC 61850.
In electric substation's acquisition traction power supply equipment of setting load balancing master station device or 10kV power supplies circuit
Load current, it is each scene charge circuit setting load balancing monitor sub-station device, acquire each electrically-charging equipment charging current and
The location status of charge switch.
With reference to the current data of acquisition, load balancing master station device judges that electric substation's traction power supply equipment or 10kV are supplied
Whether electric electric power loop there is the Overload that can exceed that permission；Load balancing monitoring sub-station device judges whether this charging
Circuit has vehicle carrying out high current quick charge, and charged state and charge switch information are transferred to by digital communications network
Load balancing master station device.
It puts into load balancing monitoring function, is likely to occur when load balancing master station device determines more than permission
During overload electric current situation, send out control command, by the range of this power supply zone other do not carry out high current quick charge temporarily
Charge circuit is cut off, and prevents the charging current superposition for occurring other vehicles within next period, avoids the great Rong of charging load
Stroke.
Detecting the overload blackout, release charge circuit cut-off before allows it to be charged normal.
Further, it the described method comprises the following steps：
The first step：System equipment is configured
Load balancing master station equipment is carried out by the electric power system scheme of Practical Project, load balancing monitoring substation is set
Standby, digital communications network facility configuration, completes Load balanced control system schema wiring diagram, device configuration relationship.
Under normal circumstances, a set of Load balanced control system is born including a load balancing master station equipment, several
Lotus equilibrium monitors substation device and realizes the digital communications network facility of mutual data communication.
Second step：System state amount and setting valve setting
1) system setting valve is set：
Load balancing master station：The current reference value Izdset of initialization system overload electric current, overload detection delay
Time Tzdset.
Load balancing monitors substation：Set charge circuit charging current minimum detection reference value I cdset, charging current inspection
Survey delay time Tcdset.
2) system running state amount is set：
Load balancing master station：Load balanced control function puts into/exits mode bit Y (1)
Load balancing monitors substation：Charge circuit switch load Balance route Enable/Disable status signal B (2)
Load balancing master station：Load balanced control starts state of a control position G (3)
Load balancing monitors substation：Charge circuit charged state position：C (4)
Load balancing monitors substation：Charge circuit position of the switch state：K (5)
(1) Load balanced control function puts into/exits mode bit：Y
Load balancing master station equipment：Load balanced control function is put into：Y=1.Load balanced control function exits：Y
=0.
(2) charge circuit switch load Balance route Enable/Disable status signal：B
Load balancing monitors substation device：
This charge circuit switch permissible load Balance route switching on and off state of a control position：B=1.
This charge circuit switch forbids Load balanced control switching on and off state of a control position：B=0.
(3) Load balanced control starts state of a control position：G
Load balancing master station equipment carries out practical overload electric current detection：The current effective value If of online acquisition,
Detect delay time (duration) Tf.
If If >=Izdset, Tf >=Tzdset represents system and detects Overload, sends out Load balanced control
Charge circuit cut-out control information G=1.
If If ＜ Izdset, Tf >=Tzdset, which is represented, does not have Overload, sends out Load balanced control charge circuit
Release control information G=0.
(4) charge circuit charged state position：C
Load balancing monitoring substation device carries out practical charging current detection：The charging current detected value of online acquisition
Icd, charging current detection delay time Tcd.
If Icd >=Icdset, Tcd >=Tcdset representatives charge normal, and send out the circuit and are in high current quick charge shape
State sends out charging status information C=1.
If Icd ＜ Icdset, Tcd >=Tcdset represents the circuit and does not carry out high current quick charge temporarily, sends out charging shape
State information C=0 allows to carry out rupturing operation.
(5) charge circuit position of the switch state：K
Load balancing monitoring substation device carries out practical charge switch state-detection：Switch is in closing position：K=1.
Switch is in open position：K=0.
(6) time T1 of the charge circuit switch in dissengaged positions, charge circuit discharge the operating interval time between switching
T2。
Third walks：Load balanced control is selected to implement logic
For cutting off and discharging the charge circuit in supply district, there are following two control logics：
1) control logic one：
During cut-out：Other are not carried out temporarily to disposably the charge circuit cut-out of high current quick charge.
During release：Disposably the charge circuit of all cut-outs is all discharged.
2) control logic two：
During cut-out：Other are not carried out temporarily to disposably the charge circuit cut-out of high current quick charge.
During release：Separated in time gradually discharges the charge circuit of cut-out.The sequence of release is according to being initially switched off, first release
The ordinal relation put is discharged.If the time is identical, discharged at random.
4th step：Load balanced control system carries out logic judgment according to field condition
1) load balancing master station equipment carries out practical overload electric current detection：
If If >=Izdset, Tf >=Tzdset represents system and detects Overload, sends out Load balanced control
Charge circuit cut-out control information G=1.
2) each load balancing monitoring substation device carries out practical charging current detection：
If Icd >=Icdset, Tcd >=Tcdset representatives charge normal, and send out the circuit and are in high current quick charge shape
State sends out charging status information C=1.
3) system judges that Load balanced control function puts into/exit mode bit Y, each charge circuit switch load by combination
Balance route Enable/Disable status signal B, Load balanced control start state of a control position G, and charge circuit charged state position C fills
Electrical circuit position of the switch state K controls output after comprehensive descision.
Charge circuit time T1 of the switch in dissengaged positions, charge circuit discharge operating interval time T2 between switching.
(1) using action logic scheme for the moment：
1. when load balancing master station Y=1, G=1 status condition exists simultaneously, each load balancing monitoring substation is expired
Sufficient B=1, C=0, the charge switch circuit of K=1 control conditions, disposable cutoff action outlet.
2. when load balancing master station Y=1, G=0 status condition exists simultaneously, each load balancing monitoring substation is expired
The equal release movement outlet in charge switch circuit of sufficient B=1, K=0 control condition, restores the state that can be charged.
(2) using action logic scheme two when：
1. when load balancing master station Y=1, G=1 status condition exists simultaneously, each load balancing monitoring substation is expired
Sufficient B=1, C=0, the charge switch circuit of K=1 control conditions, disposable cutoff action outlet.
2. when load balancing master station Y=1, G=0 status condition exists simultaneously, each load balancing monitoring substation is expired
Sufficient B=1, K=0 control condition, in disconnection charge circuit switch be compared, the circuit switching be in dissengaged positions when
Between T1 when being maximum, meet the control condition of charge circuit release, the outlet of charge circuit release movement restores the shape that can be charged
State.
When load balancing master station is continuously detected Y=1, G=0, then separated in time T2, each load balancing monitors
Substation meets B=1, K=0 control conditions, more remaining each time T1 of the charge circuit switch in dissengaged positions, for maximum
Person discharges the charge switch circuit of each cut-out successively.
Embodiment：
Fig. 1 is a kind of concrete application scene of the method for the present invention：One power supply zone, an external incoming power, two
Electric substation.Power supply plan uses 10kV Single-ring network powering modes, and each substation returns back out line, three chargings for one back into line, one
Line loop is fed out, charging unit is often covered and powers respectively to the charging rail at station.Each power supply zone sets a set of load balancing control
System processed.The load of charging unit setting is often covered by the load balancing master station (1) and station of the setting of 10kV incoming powers
Equilibrium monitoring substation (3) and digital communications network facility (2) are formed.
It is illustrated by taking Fig. 1 as an example：
The first step：
Load balanced control system in this legend includes a set of load balancing master station FK0 (1) and 6 sets of load balancings
Monitor substation FK1 FK2 FK3 FK4 FK5 FK6 (3) and digital communications network facility (2).
Basis for estimation of the electric current of load balancing master station FK0 (1) acquisition 10kV incoming powers (4) as overload,
And pass through digital communications network facility (2) receive load balancing monitoring substation FK1 FK2 FK3 FK4 FK5 FK6 (3) adopt respectively
The charging current of current sensor CT (5) and the location status information of charge circuit switch K (6) in the charge circuit of collection.And root
According to the situation of overload electric current, send out cut-out or discharge the order of charge circuit switch.
Load balancing monitoring substation FK1 FK2 FK3 FK4 FK5 FK6 (3) pass through digital communications network facility respectively
(2), the cut-out or the order of release charge circuit switch K (6) that reception load monitoring main website FK0 (1) is sent out.
Second step：Quantity of state and setting valve setting
1) load balancing master station：The current reference value Izdset of overload electric current is set, when overload detection is delayed
Between Tzdset.
Load balancing monitors substation：Charging current minimum detection reference value I cdset is set, when charging current detection is delayed
Between Tcdset.
2) initialization system runs the current data acquisition of each device and correlated condition amount is shown in Table 1.
The corresponding data acquisition of 1 each relevant device of Load balanced control system of table and status information table
Third walks：Load balanced control is selected to implement logic
For cutting off and discharging the charge circuit in supply district, there are following two control logics：
1) control logic one：
During cut-out：Other are not carried out temporarily to disposably the charge circuit cut-out of high current quick charge.
During release：Disposably the charge circuit of all cut-outs is all discharged.
2) control logic two：
During cut-out：Other are not carried out temporarily to disposably the charge circuit cut-out of high current quick charge.
During release：Separated in time gradually discharges the charge circuit of cut-out.The sequence of release is according to being initially switched off, first release
The ordinal relation put is discharged.If the time is identical, discharged at random.
4th step：Load balanced control system carries out logic judgment according to field condition
1) load balancing master station FK0 (1) first judges whether the Load balanced control function of corresponding this system puts into,
That is mode bit Y, if Y=1, function input, then system loading balance control function startup, if Y=0, function exits, then whole
The Load balanced control function of a system exits.
2) judge in this system load balancing monitoring substation FK1 FK2 FK3 FK4 FK5 the corresponding loads of FK6 (3)
Whether balance control function puts into, i.e. mode bit B.If B=1, corresponding Load balanced control function input；If B
=0, then its corresponding Load balanced control feature capability exit.
3) current detecting：
1. load balancing master station equipment carries out practical overload electric current detection：
If If >=Izdset, Tf >=Tzdset represents system and detects Overload, sends out Load balanced control
Charge circuit cut-out control information G=1.On the contrary then G=0.
2. each load balancing monitoring substation device carries out practical charging current detection：
If Icd >=Icdset, Tcd >=Tcdset representatives charge normal, and send out the circuit and are in high current quick charge shape
State sends out charging status information C=1.On the contrary then C=0.
4) system is illustrated by taking following working conditions as an example：
Load balancing master station 1. FK0 (1) Load balanced control function puts into Y=1.
2. each load balancing monitoring substation FK1 FK2 FK3 FK4 FK5 the corresponding Load balanced control functions of FK6 (3)
Put into B=1.
3. load balancing monitoring substation FK1 FK3 the corresponding charge circuits of FK5 (3) charging, i.e.,：
Icd1 >=Icdset, Tcd1 >=Tcdset；Obtain C1=1, K1=1.
Icd3 >=Icdset, Tcd3 >=Tcdset；Obtain C3=1, K3=1.
Icd5 >=Icdset, Tcd5 >=Tcdset；Obtain C5=1, K5=1.
4. load balancing monitoring substation FK2 FK4 FK6 (3) without charging and switch in close position, i.e.,：
Icd2 ＜ Icdset, Tcd2 >=Tcdset；Obtain C2=0, K2=1.
Icd4 ＜ Icdset, Tcd4 >=Tcdset；Obtain C4=0, K4=1.
Icd6 ＜ Icdset, Tcd6 >=Tcdset；Obtain C6=0, K6=1.
5. using different action logic schemes
Ith, using action logic scheme for the moment：
A, when Overload generation, i.e. load balancing master station FK0 (1) current detecting：
If >=Izdset, Tf >=Tzdset obtain G=1.
Load balancing master station FK0 (1) by all load balancings monitoring substation FK1 FK2 FK3 FK4 FK5 FK6
(3) meet the charge switch circuit of C=0 and K=1 status conditions in, disposable cutoff action outlet, hair disjunction order is to negative
Lotus equilibrium monitors substation (3), and each charge circuit switch K (6) is cut off.
This working condition then disposably by load balancing monitoring substation FK2 FK4 the corresponding charge circuits of FK6 (3) switch
K2 K4 K6 (6) it is all off.
B, when Overload disappearance, i.e. load balancing master station FK0 (1) current detecting：
If ＜ Izdset, Tf >=Tzdset obtain G=0.
Load balancing master station FK0 (1) by all load balancings monitoring substation FK1 FK2 FK3 FK4 FK5 FK6
(3) meet the charge circuit switch K (6) of K=0 conditions, disposable release movement outlet restores the state that can be charged.
This working condition is then disposably filled what load balancing monitoring substation FK2 FK4 FK6 (3) and other correspondences were disconnected
Electrical circuit switch K2 K4 K6 (6) all discharge, restore the state that can charge.
When the IIth, using action logic scheme two：
A, when having Overload, i.e. load balancing master station FK0 (1) current detecting：
If >=Izdset, Tf >=Tzdset obtain G=1.
Load balancing master station FK0 (1) by all load balancings monitoring substation FK1 FK2 FK3 FK4 FK5 FK6
(3) meet the charge switch circuit of C=0 and K=1 status conditions in, disposable cutoff action outlet, hair disjunction order is to negative
Lotus equilibrium monitors substation (3), and each charge circuit switch K (6) is cut off.
This working condition then disposably by load balancing monitoring substation FK2 FK4 the corresponding charge circuits of FK6 (3) switch
K2 K4 K6 (6) it is all off.
B, when Overload disappearance, i.e. load balancing master station FK0 (1) current detecting：
If ＜ Izdset, Tf >=Tzdset obtain G=0.
Load balancing master station FK0 (1) by all load balancings monitoring substation FK1 FK2 FK3 FK4 FK5 FK6
(3) meet K=0 conditions charge circuit switch K1 K2 K3 K4 K5 K6 (6) be compared, will preferentially be in dissengaged positions
Time T2 be that maximum charge circuit switch is discharged, restore the state that can be charged.
During the release, when being continuously detected G=0, then separated in time T1, will preferentially be in dissengaged positions successively
Time T2 be that maximum circuit is discharged, restore the state that can be charged.
This work states situation then when Overload disappears, by load balancing monitoring substation FK2 FK4 FK6 (3) and its
Corresponding charge switch K2 K4 the time T2 that are off of K6 (6) be compared, preferentially by dissengaged positions when
Between T2 be that maximum circuit is discharged, restore the state that can be charged.
If the corresponding charge circuit switch time T2 of K4 (6) in disconnection of load balancing monitoring substation FK4 (3) are most
Greatly, then the state that can be charged preferentially is restored it.Separated in time T1 compares load balancing monitoring substation FK2 and FK6 couples
Charge circuit the switch K2 and K6 (6), the time T2 in dissengaged positions answered is the maximum, is discharged successively, and similar judgement is handled,
Until the end of entire state.
Claims (5)
1. tramcar engineering electric power system load balance control method, which is characterized in that include the following steps:
1) monitoring substation judges whether have vehicle carrying out high current quick charge in its monitoring range, will be in monitoring information
It reports to master station；
2) master station judges whether be likely to occur overload in the range of this master station, if then being reported according to each monitoring substation
Monitoring information by the range of this master station do not carry out high current quick charge charge circuit cut off；
3) when monitoring substation detects that high current quick charge has been completed, information reporting will be completed to master station；
4) after master station receives completion information, whether master station judges negative from being likely to occur in the range of this master station
It is exited in the state of lotus, if then discharging cut-off charge circuit.
2. tramcar engineering electric power system load balance control method as described in claim 1, which is characterized in that the step
It is rapid 4) to be：
Disposably the charge circuit of all cut-outs is all discharged.
3. tramcar engineering electric power system load balance control method as described in claim 1, which is characterized in that the step
It is rapid 4) to be：
According to prefixed time interval, foundation is initially switched off the charge circuit that the sequence first discharged gradually discharges cut-out.
4. tramcar engineering electric power system load balance control method as described in claim 1, which is characterized in that the step
It is rapid 1) to be：
The current effective value of monitoring substation acquisition charge circuit and the current duration for reaching this virtual value, if the two all reaches
Predetermined threshold value then indicates that vehicle is carrying out high current quick charge, and then reports monitoring information.
5. tramcar engineering electric power system load balance control method as described in claim 1, which is characterized in that the step
It is rapid 2) to be：
Whether the current value of transformer equipment input current where master station detects it is beyond preset value and beyond preset value
Duration judges whether be likely to occur overload in the range of this master station, if the prison then reported according to each monitoring substation
Control information cuts off the charge circuit for not carrying out high current quick charge in the range of this master station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448845.7A CN108183489B (en) | 2017-12-27 | 2017-12-27 | Load balance control method for tramcar engineering power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448845.7A CN108183489B (en) | 2017-12-27 | 2017-12-27 | Load balance control method for tramcar engineering power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108183489A true CN108183489A (en) | 2018-06-19 |
| CN108183489B CN108183489B (en) | 2021-05-25 |
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| CN201711448845.7A Active CN108183489B (en) | 2017-12-27 | 2017-12-27 | Load balance control method for tramcar engineering power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066697A (en) * | 2018-08-09 | 2018-12-21 | 中铁第四勘察设计院集团有限公司 | A kind of energy storage type tramcar supply load adjusting method and system |
| CN111301212A (en) * | 2020-03-06 | 2020-06-19 | 西安西瑞控制技术股份有限公司 | Orderly charging method for electric automobile |
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| CN202795574U (en) * | 2012-08-06 | 2013-03-13 | 成志东 | Electric automobile orderly charge control system capable of avoiding overload of power network |
| CN204992659U (en) * | 2015-08-05 | 2016-01-20 | 南京捷泰电力设备有限公司 | Charging device of electric automobile |
| KR20170089190A (en) * | 2016-01-26 | 2017-08-03 | (주)세종코리아지능화시스템 | Electric Vehicle Charging Control Systems |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202795574U (en) * | 2012-08-06 | 2013-03-13 | 成志东 | Electric automobile orderly charge control system capable of avoiding overload of power network |
| CN204992659U (en) * | 2015-08-05 | 2016-01-20 | 南京捷泰电力设备有限公司 | Charging device of electric automobile |
| KR20170089190A (en) * | 2016-01-26 | 2017-08-03 | (주)세종코리아지능화시스템 | Electric Vehicle Charging Control Systems |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066697A (en) * | 2018-08-09 | 2018-12-21 | 中铁第四勘察设计院集团有限公司 | A kind of energy storage type tramcar supply load adjusting method and system |
| CN111301212A (en) * | 2020-03-06 | 2020-06-19 | 西安西瑞控制技术股份有限公司 | Orderly charging method for electric automobile |
| CN111301212B (en) * | 2020-03-06 | 2023-03-10 | 西安西瑞控制技术股份有限公司 | Orderly charging method for electric automobile |
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| CN108183489B (en) | 2021-05-25 |
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Application publication date: 20180619 Assignee: SICHUAN METRO TECHNOLOGY CO.,LTD. Assignor: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Contract record no.: X2022980014360 Denomination of invention: Load balance control method of power supply system for tram project Granted publication date: 20210525 License type: Common License Record date: 20220908 |