CN103269094A - Method for controlling charging and discharging of energy storage unit of urban railway system - Google Patents

Method for controlling charging and discharging of energy storage unit of urban railway system Download PDF

Info

Publication number
CN103269094A
CN103269094A CN2013101591038A CN201310159103A CN103269094A CN 103269094 A CN103269094 A CN 103269094A CN 2013101591038 A CN2013101591038 A CN 2013101591038A CN 201310159103 A CN201310159103 A CN 201310159103A CN 103269094 A CN103269094 A CN 103269094A
Authority
CN
China
Prior art keywords
power
traction
energy
locomotive
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013101591038A
Other languages
Chinese (zh)
Other versions
CN103269094B (en
Inventor
段晓波
胡文平
戎士洋
朱明星
周文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd, Hebei Electric Power Construction Adjustment Test Institute filed Critical State Grid Corp of China SGCC
Priority to CN201310159103.8A priority Critical patent/CN103269094B/en
Publication of CN103269094A publication Critical patent/CN103269094A/en
Application granted granted Critical
Publication of CN103269094B publication Critical patent/CN103269094B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a method for controlling charging and discharging of an energy storage unit of an urban railway system. The method comprises the following steps: (1) sampling a signal, (2) computing traction power P of a direct current bus of a tested automobile, and computing traction upper limit power PU of the automobile and traction lower limit power PD of the automobile, (3) comparing and implementing: a, comparing the traction power P and the traction lower limit power PD, and b, comparing the traction power P and the traction upper limit power PU. The method controls few control variables and ensures high precision and high reliability of a controller.

Description

A kind of for controlling the control method that the urban track traffic energy-storage units discharges and recharges
Technical field
The present invention relates to a kind of control method that discharges and recharges for control urban track traffic energy-storage units, particularly disclose a kind of control signal Detection ﹠ Controling method for control urban track traffic energy-storage units.
Background technology
It is big that urban track traffic has a freight volume, safety, characteristics such as energy savings, become one of main vehicles of modern city, it has played important function in urban development, but because the power supply of urban track traffic and impact, the uncertainty of electricity consumption make urban track traffic bring huge pollution to electric power system.When urban track traffic starts, draw active power fast from electrical network, during braking, to electrical network feedback active power, this brings influence will for the safe and stable operation of electric power system.Energy-storage units can play quick storage power in electric power system, to the load peak load shifting, improve system reliability and stability, reduce characteristics such as system reserve demand, be applied to urban track traffic to improve the quick variation of active power, and then make the crest voltage of each element and loss reduce greatly, to containing the obvious effect of having played of power supply of urban orbit traffic system.
The control method of urban track traffic energy-storage units is that can energy-storage units accurately absorb or release energy, and improves the important technology part of electric power system fail safe.Yet there are no the control signal Detection ﹠ Controling method of the urban track traffic energy storage controller that response speed is fast, control precision is high.
Summary of the invention
The present invention is directed to above problem and the control method that is used for control urban track traffic energy-storage units that a kind of response speed is fast, robustness is good is provided.
The technical solution adopted for the present invention to solve the technical problems:
A kind of for controlling the control method that the urban track traffic energy-storage units discharges and recharges, it is characterized in that may further comprise the steps:
(1) signal sampling step:
To urban track traffic access point locomotive dc bus, handle period T at a signal SInterior constant duration ground is gathered n voltage U (i) and electric current I (i) signal, i=1,2 respectively ... n,
Wherein, n=T S/ T 0, T 0Be the sampling period of setting;
(2) calculation procedure:
A. calculate the traction power P of described tested engine dc bus by following formula (1):
(1)
Wherein, P is the traction power of described tested engine dc bus, and unit is kW,
U(i) be i sample voltage value of described tested engine dc bus, unit is kV,
I(i) be i sample rate current value of tested engine dc bus, unit is kA;
B. calculate locomotive traction Upper Bound Power P by following formula (2) and formula (3) UWith locomotive traction lower limit power P D:
(2)
(3)
Wherein, P 1~ P 2Be the scope of the locomotive traction Upper Bound Power set, unit is kW,
P 3~ P 4Be the scope of the locomotive traction lower limit power set, unit is kW,
P JBe the traction power of locomotive sampling instant, unit is kW,
P MBe the maximum traction power of locomotive, unit is kW,
V is the speed of locomotive sampling instant, and unit is km/h,
V MBe the locomotive maximal rate, unit is km/h;
(3) relatively reach execution in step:
A. more described traction power P and described traction lower limit power P DSize:
If described traction power P is greater than described traction lower limit power P D, then change next step;
If described traction power P is less than described traction lower limit power P D, then the energy-storage units on the described tested engine dc bus is charged charge power P CBe both differences, i.e. charge power , rechargeable energy returns step (1) then up to the maximum storage energy that reaches energy-storage units;
B. more described traction power P and described traction Upper Bound Power P USize:
If described traction power P is greater than described traction Upper Bound Power P U, then described energy-storage units discharges, discharge power P FBe both differences, i.e. discharge power , discharge energy is 0 up to the energy of energy-storage units, returns step (1) then;
If described traction power P is less than described traction Upper Bound Power P U, then directly return step (1).
Beneficial effect of the present invention is:
(1) the present invention only need gather the control that namely realizes energy-storage units to the voltage and current signal of urban track traffic locomotive dc bus, required control variables is few, by controlling less control variables, just can realize excellent control effect, guarantee high precision and the high reliability of controller;
(2) the present invention has adopted the two paths of signals collection, has reduced the delay time of control signal output, has further guaranteed the response speed of controller.
Embodiment
Present embodiment gets final product according to the technical scheme concrete operations in the summary of the invention part.

Claims (1)

1. one kind is used for the control method that control urban track traffic energy-storage units discharges and recharges, and it is characterized in that may further comprise the steps:
(1) signal sampling step:
To urban track traffic access point locomotive dc bus, handle period T at a signal SInterior constant duration ground is gathered n voltage U (i) and electric current I (i) signal, i=1,2 respectively ... n,
Wherein, n=T S/ T 0, T 0Be the sampling period of setting;
(2) calculation procedure:
A. calculate the traction power P of described tested engine dc bus by following formula (1):
(1)
Wherein, P is the traction power of described tested engine dc bus, and unit is kW,
U(i) be i sample voltage value of described tested engine dc bus, unit is kV,
I(i) be i sample rate current value of tested engine dc bus, unit is kA;
B. calculate locomotive traction Upper Bound Power P by following formula (2) and formula (3) UWith locomotive traction lower limit power P D:
(2)
(3)
Wherein, P 1~ P 2Be the scope of the locomotive traction Upper Bound Power set, unit is kW,
P 3~ P 4Be the scope of the locomotive traction lower limit power set, unit is kW,
P JBe the traction power of locomotive sampling instant, unit is kW,
P MBe the maximum traction power of locomotive, unit is kW,
V is the speed of locomotive sampling instant, and unit is km/h,
V MBe the locomotive maximal rate, unit is km/h;
(3) relatively reach execution in step:
A. more described traction power P and described traction lower limit power P DSize:
If described traction power P is greater than described traction lower limit power P D, then change next step;
If described traction power P is less than described traction lower limit power P D, then the energy-storage units on the described tested engine dc bus is charged charge power P CBe both differences, i.e. charge power , rechargeable energy returns step (1) then up to the maximum storage energy that reaches energy-storage units;
B. more described traction power P and described traction Upper Bound Power P USize:
If described traction power P is greater than described traction Upper Bound Power P U, then described energy-storage units discharges, discharge power P FBe both differences, i.e. discharge power , discharge energy is 0 up to the energy of energy-storage units, returns step (1) then;
If described traction power P is less than described traction Upper Bound Power P U, then directly return step (1).
CN201310159103.8A 2013-05-03 2013-05-03 Method for controlling charging and discharging of energy storage unit of urban railway system Active CN103269094B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310159103.8A CN103269094B (en) 2013-05-03 2013-05-03 Method for controlling charging and discharging of energy storage unit of urban railway system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310159103.8A CN103269094B (en) 2013-05-03 2013-05-03 Method for controlling charging and discharging of energy storage unit of urban railway system

Publications (2)

Publication Number Publication Date
CN103269094A true CN103269094A (en) 2013-08-28
CN103269094B CN103269094B (en) 2015-05-06

Family

ID=49012708

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310159103.8A Active CN103269094B (en) 2013-05-03 2013-05-03 Method for controlling charging and discharging of energy storage unit of urban railway system

Country Status (1)

Country Link
CN (1) CN103269094B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106394261A (en) * 2016-09-30 2017-02-15 株洲中车时代电气股份有限公司 Charging power distribution method and system for energy storage type urban rail train

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120104034A (en) * 2011-03-11 2012-09-20 한국과학기술원 Battery charging and discharging control method and apparatus for electric vehicles with wireless power supply
CN102975623A (en) * 2012-12-27 2013-03-20 湖南恒信电气有限公司 Control method and device for dual-mode absorption device of urban rail traffic
CN202888913U (en) * 2012-11-19 2013-04-17 周锡卫 Energy storage control device of distributed new energy power system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120104034A (en) * 2011-03-11 2012-09-20 한국과학기술원 Battery charging and discharging control method and apparatus for electric vehicles with wireless power supply
CN202888913U (en) * 2012-11-19 2013-04-17 周锡卫 Energy storage control device of distributed new energy power system
CN102975623A (en) * 2012-12-27 2013-03-20 湖南恒信电气有限公司 Control method and device for dual-mode absorption device of urban rail traffic

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106394261A (en) * 2016-09-30 2017-02-15 株洲中车时代电气股份有限公司 Charging power distribution method and system for energy storage type urban rail train
CN106394261B (en) * 2016-09-30 2018-11-06 株洲中车时代电气股份有限公司 A kind of energy storage type municipal rail train charge power distribution method and system

Also Published As

Publication number Publication date
CN103269094B (en) 2015-05-06

Similar Documents

Publication Publication Date Title
CN102700422B (en) Power supply device and power supply system of hybrid railway vehicle, and railway vehicle
CN102717718B (en) Power supply method of hybrid power rail vehicle
CN107813708A (en) A kind of range extended electric vehicle power system and its control method
CN102882440B (en) A kind of high-power braking energy consumer and control method thereof
CN101888179B (en) DC/DC control and drive circuit of hybrid power excavator
CN106427615B (en) A kind of composite supply control system and its switching method in different operating modes
CN203697980U (en) Urban railway vehicle traction system
CN103278776B (en) A kind of batteries of electric automobile Insulation Inspection System
CN204131153U (en) A kind of track traffic braking energy stores and utilizes device
CN205686199U (en) The composite power source of power-type and accumulation energy type lithium electricity composition and electric automobile composite power source
CN105449734A (en) Battery balancing device and charge and discharge balancing method thereof
CN104065153A (en) Dual-power coupling device and hybrid-power electric automobile with same
CN206242935U (en) Pure electric automobile double source energy system
CN102751711A (en) Motor controller discharging safety device for hybrid electric vehicle
CN110834545A (en) Power supply system of guide rail electric car and control method thereof
CN203840047U (en) Dual-power-supply coupling device and hybrid electric vehicle thereof
CN103269094B (en) Method for controlling charging and discharging of energy storage unit of urban railway system
CN203339742U (en) Switch for charging and discharging electric automobile and control circuit thereof
Zheng et al. A hybrid energy storage system for an electric vehicle and its effectiveness validation
Yu et al. Battery/ultra-capacitor hybrid energy storage system used in HEV
CN104960431A (en) Energy distributing device and method for electric car based on lithium-rich manganese-based lithium battery
CN203157749U (en) Trolley bus power system
CN103072464A (en) High voltage system power-on and power-off control circuit of series hybrid vehicle and control method
CN203522244U (en) Power supply management system of electric car
CN203543706U (en) Power supply system for electric vehicle

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant