CN109474216A - Impulse generator group electric braking power supply - Google Patents
Impulse generator group electric braking power supply Download PDFInfo
- Publication number
- CN109474216A CN109474216A CN201710804446.3A CN201710804446A CN109474216A CN 109474216 A CN109474216 A CN 109474216A CN 201710804446 A CN201710804446 A CN 201710804446A CN 109474216 A CN109474216 A CN 109474216A
- Authority
- CN
- China
- Prior art keywords
- diode
- power supply
- disconnecting switch
- battery system
- impulse generator
- 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.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/102—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for limiting effects of transients
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Electrical technology of the present invention specifically discloses a kind of impulse generator group electric braking power supply, including commutation system, storage battery system and high-speed switch；The commutation system and storage battery system are in parallel, and are all connected with alternating current output end and are all connected with high-speed switch, connect unit by high-speed switch；The commutation system and storage battery system is equipped with disconnecting switch and diode.It is realized to generating set fast braking, not only saves downtime, and reduces the loss of unit wear-out part；The structure of commutation system and battery system ensure that the reliability of motor braking, avoid due to high vibration of the exchange power loss unit near resonance point revolving speed, effective guarantee unit safety.
Description
Technical field
The invention belongs to electrical technologies, and in particular to a kind of impulse generator group electric braking power supply.
Background technique
The stalling of generating set carries out usually in a manner of free parking, pulsed operation, has the characteristics that rotary inertia is big.
For small-load generators, this mode is easy to operate, control is easy, safety coefficient is high；If large sized unit
Stalling still in this way, may bring following problem:
1. since generating set capacity is larger (unit capacity 300MVA once releases energy 1350MJ), so rundown time is very
It is about 2 hours, needs specially to arrange personnel's post.
2. freely shutting down when encountering power loss or other failures need unit promptly to stall and being unable to reach quick requirement.
3. since factors, any units such as installation deviation, shafting bending, rotation imbalance have a resonance critical point to turn
Speed, mechanical oscillation can aggravate near the revolving speed, can damage to unit when serious, this is determined by unit self construction
's.It need to be quickly through this section when it requires stalling.
Frequent parking especially in need to unit requires situation, above problem it is just more prominent.
Summary of the invention
The object of the present invention is to provide a kind of impulse generator group electric braking power supply, can be realized to generating set electricity
Gas braking.
Technical scheme is as follows:
A kind of impulse generator group electric braking power supply, including commutation system, storage battery system and high-speed switch；It is described
Commutation system and storage battery system it is in parallel, and be all connected with alternating current output end and be all connected with high-speed switch, connected by high-speed switch
Pick group；The commutation system and storage battery system is equipped with disconnecting switch and diode.
That described includes disconnecting switch A, rectifier transformer, rectifier and diode A；One end of the disconnecting switch A
Alternating current is connected, the other end is sequentially connected rectifier transformer, rectifier and diode A；The rectifier is set there are two output end,
One connection diode A, the output end of diode A are sequentially connected one end of high-speed switch and DCgenerator motor field coil, unit
The other end of magnet exciting coil connects the another output of above-mentioned rectifier 103.
The disconnecting switch B of the commutation system starts to close closed state.
The storage battery system includes charging module, battery group, disconnecting switch B and diode B；The charging
Module one end connects alternating current, and the other end is sequentially connected battery group, disconnecting switch B and diode B, and disconnecting switch B's connects all the way
Diode B is met, the output end of diode B is sequentially connected one end of above-mentioned high-speed switch and DCgenerator motor field coil, DCgenerator motor field line
The other end of circle connects the another way of above-mentioned disconnecting switch B.
The disconnecting switch B of the battery system starts as separated position.
The alternating current is 380V.
Remarkable result of the invention is as follows: design rectifier systems are the conventional main equipment of braking operation；Battery system
System is the stand-by equipment of braking operation；When rectifier fault or power loss can not work normally, battery group is automatically engaged, to protect
Card unit braking can be gone on smoothly.The shortening of unit downtime was reduced to electric braking by 2 hours of free halt mode
10 minutes or so of mode.Generating unit speed is damaged as caused by high vibration quickly through resonance critical point, reduction.Battery
Group power supply system ensure that and break down in commutation system or when power loss, unit braking remains to safely and reliably carry out.
In short, this power supply is realized to generating set fast braking, downtime is not only saved, and reduce unit
The loss of wear-out part；The structure of commutation system and battery system ensure that the reliability of motor braking, avoid due to exchange
High vibration of the power loss unit near resonance point revolving speed, effective guarantee unit safety.
Detailed description of the invention
Fig. 1 is impulse generator group electric braking power supply schematic diagram；
In figure: 1. commutation systems；2. storage battery system；3. high-speed switch；4. DCgenerator motor field coil；101. disconnecting switch
A；102. rectifier transformer；103. rectifier；104. diode A；201. charging module；202. battery groups；203. keeping apart
Close B；204. diode B.
Specific embodiment
Below by the drawings and the specific embodiments, the invention will be further described.
As shown in Figure 1, impulse generator group electric braking power supply includes commutation system 1, storage battery system 2 and quickly opens
Close 3.Commutation system 1 and storage battery system 2 are in parallel, and are all connected with alternating current 380V, and two systems are defeated by respective diode
The output end of direct current out, commutation system 1 and storage battery system 2 is all connected with high-speed switch 3, connects unit by high-speed switch 3
Magnet exciting coil 4.
Commutation system 1 and the unidirectional output of storage battery system 2, and it is mutually isolated.Commutation system 1 and battery system 2
Output-parallel exports direct current supply to DCgenerator motor field coil 4 by high-speed switch 3.
As shown in Figure 1, commutation system 1 includes disconnecting switch A101, rectifier transformer 102, rectifier 103 and diode
A104.Storage battery system 2 includes charging module 201, battery group 202, disconnecting switch B203 and diode B204.
One end of disconnecting switch A101 in commutation system 1 connects alternating current, the other end be sequentially connected rectifier transformer 102,
Rectifier 103 and diode A104.Wherein there are two output end, the above-mentioned diode A104 of a connection, two poles for rectifier 103
The output end of pipe A104 is sequentially connected one end of high-speed switch 3 and DCgenerator motor field coil 4, and the other end of DCgenerator motor field coil 4 connects
Connect the another output of above-mentioned rectifier 103.
201 one end of charging module in storage battery system 2 connects alternating current, the other end be sequentially connected battery group 202, every
Leave and close B203 and diode B204, the output end of connection all the way the diode B204, diode B204 of disconnecting switch B203 according to
One end of secondary connection above-mentioned high-speed switch 3 and DCgenerator motor field coil 4, the other end connection of DCgenerator motor field coil 4 is above-mentioned to be kept apart
Close the another way of B203.
In the present embodiment, the disconnecting switch A101 in commutation system 1 is three tunnels, is separately connected 380V alternating current, battery group
The input terminal of the charging module 201 of system 2 is divided into three tunnels, is separately connected 380V alternating current, and the output end of charging module 201 is two
Road is separately connected above-mentioned battery group 202.
In the present embodiment, the rectifier 103 in commutation system 1 is three inputs, two output, and input terminal is separately connected above-mentioned
The output end of rectifier transformer 102.
In general, the disconnecting switch A101 conjunction of commutation system 1 is closed, the disconnecting switch B203 of battery system 2 is separated, by rectifying
System is powered by high-speed switch to magnet exciting coil.
When exchanging power loss (alternating current 380V disappearance) or commutation system breaks down, battery system 2 is kept apart
It closes B203 conjunction to close, changes from storage battery system 2 and powered by high-speed switch 3 to DCgenerator motor field coil 4.
This power supply is realized to generating set fast braking, not only saves downtime, and reduces unit abrasion
The loss of part；The structure of commutation system 1 and battery system 2 ensure that the reliability of motor braking, avoid since exchange is lost
High vibration of the motor group near resonance point revolving speed, effective guarantee unit safety.
It is applicable not only to braking when large sized unit is shut down, can also be applied to general electrical power field, having makes
With the big feature of range.
The foregoing describe technical solution of the present invention and specific embodiments, it will be understood by those of skill in the art that this
It is a bit only explanation.This hair protection scope is defined by the appended claims.Those skilled in the art is without departing substantially from this hair
Under the premise of bright principle and essence, numerous variations and modification can be made to this embodiment, but these change and modification are equal
Fall into protection scope of the present invention.
Claims (6)
1. a kind of impulse generator group electric braking power supply, it is characterised in that: it includes commutation system (1), storage battery system
(2) and high-speed switch (3)；The commutation system (1) and storage battery system (2) are in parallel, and input terminal is all connected with alternating current, export
End is all connected with high-speed switch (3), connects unit by high-speed switch (3)；The commutation system (1) and storage battery system
(2) disconnecting switch and diode are equipped with.
2. impulse generator group electric braking power supply as described in claim 1, it is characterised in that: described includes disconnecting switch
A (101), rectifier transformer (102), rectifier (103) and diode A (104)；One end of the disconnecting switch A (101) connects
Alternating current is connect, the other end is sequentially connected rectifier transformer (102), rectifier (103) and diode A (104)；The rectifier
(103) it sets there are two output end, a connection diode A (104), the output end of diode A (104) is sequentially connected quickly
One end of (3) and DCgenerator motor field coil (4) is switched, the other end of DCgenerator motor field coil (4) connects the another of above-mentioned rectifier (103)
One output end.
3. impulse generator group electric braking power supply as claimed in claim 2, it is characterised in that: the commutation system (1)
Disconnecting switch B (203) start for close closed state.
4. impulse generator group electric braking power supply as described in claim 1, it is characterised in that: the storage battery system
2 include charging module (201), battery group (202), disconnecting switch B (203) and diode B (204)；The charging module
(201) one end connects alternating current, and the other end is sequentially connected battery group (202), disconnecting switch B (203) and diode B (204), every
The diode of the connection all the way B (204) for closing B (203) is left, the output end of diode B (204) is sequentially connected above-mentioned high-speed switch 3
With one end of DCgenerator motor field coil 4, the other end of DCgenerator motor field coil 4 connects the another way of above-mentioned disconnecting switch B (203).
5. impulse generator group electric braking power supply as claimed in claim 4, it is characterised in that: the battery system
(2) disconnecting switch B (203) starts as separated position.
6. impulse generator group electric braking power supply as claimed in any one of claims 1 to 5, wherein, it is characterised in that: described
Alternating current is 380V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804446.3A CN109474216A (en) | 2017-09-08 | 2017-09-08 | Impulse generator group electric braking power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804446.3A CN109474216A (en) | 2017-09-08 | 2017-09-08 | Impulse generator group electric braking power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109474216A true CN109474216A (en) | 2019-03-15 |
Family
ID=65657772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710804446.3A Pending CN109474216A (en) | 2017-09-08 | 2017-09-08 | Impulse generator group electric braking power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109474216A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729998Y (en) * | 2004-07-16 | 2005-09-28 | 佛山市顺德区顺达电脑厂有限公司 | Charging circuit and charger with the charging circuit |
| CN201102477Y (en) * | 2007-11-27 | 2008-08-20 | 中国北车集团大连机车车辆有限公司 | Rheostatic braking switch control device of diesel locomotive |
| CN101976996A (en) * | 2010-09-07 | 2011-02-16 | 洛阳源创电气有限公司 | Direct-current speed adjusting device with safe braking function for hoister and braking mode |
| CN201976059U (en) * | 2011-02-23 | 2011-09-14 | 汤鸣招 | Security self-shunt excitation system |
| CN102714483A (en) * | 2010-01-21 | 2012-10-03 | 三菱电机株式会社 | Rescue operation device of elevator |
| CN103023408A (en) * | 2012-12-17 | 2013-04-03 | 辽宁省电力有限公司电力科学研究院 | Self-parallel excitation trigger pulse additional control system |
| CN103595161A (en) * | 2013-11-12 | 2014-02-19 | 上海浦沃动力机械制造有限公司 | Three-phase alternating current permanent magnet synchronous generator system |
| CN104773089A (en) * | 2015-05-05 | 2015-07-15 | 山东理工大学 | Voltage stabilization control method for braking energy recovery power generation system of electric vehicle |
| CN207382221U (en) * | 2017-09-08 | 2018-05-18 | 核工业西南物理研究院 | Impulse generator group electric braking power supply |
-
2017
- 2017-09-08 CN CN201710804446.3A patent/CN109474216A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729998Y (en) * | 2004-07-16 | 2005-09-28 | 佛山市顺德区顺达电脑厂有限公司 | Charging circuit and charger with the charging circuit |
| CN201102477Y (en) * | 2007-11-27 | 2008-08-20 | 中国北车集团大连机车车辆有限公司 | Rheostatic braking switch control device of diesel locomotive |
| CN102714483A (en) * | 2010-01-21 | 2012-10-03 | 三菱电机株式会社 | Rescue operation device of elevator |
| CN101976996A (en) * | 2010-09-07 | 2011-02-16 | 洛阳源创电气有限公司 | Direct-current speed adjusting device with safe braking function for hoister and braking mode |
| CN201976059U (en) * | 2011-02-23 | 2011-09-14 | 汤鸣招 | Security self-shunt excitation system |
| CN103023408A (en) * | 2012-12-17 | 2013-04-03 | 辽宁省电力有限公司电力科学研究院 | Self-parallel excitation trigger pulse additional control system |
| CN103595161A (en) * | 2013-11-12 | 2014-02-19 | 上海浦沃动力机械制造有限公司 | Three-phase alternating current permanent magnet synchronous generator system |
| CN104773089A (en) * | 2015-05-05 | 2015-07-15 | 山东理工大学 | Voltage stabilization control method for braking energy recovery power generation system of electric vehicle |
| CN207382221U (en) * | 2017-09-08 | 2018-05-18 | 核工业西南物理研究院 | Impulse generator group electric braking power supply |
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