CN106224151B - A kind of generating set starter and start control method - Google Patents
A kind of generating set starter and start control method Download PDFInfo
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- CN106224151B CN106224151B CN201610785304.2A CN201610785304A CN106224151B CN 106224151 B CN106224151 B CN 106224151B CN 201610785304 A CN201610785304 A CN 201610785304A CN 106224151 B CN106224151 B CN 106224151B
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- accumulator
- branch
- capacitance
- generating set
- module
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
- F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of generating set starter and start control method, device includes the intelligence control system, the first branch and the second branch being mutually in parallel；Using two branch series-parallel connections, a branch is accumulator group, another branch is capacitance group；Accumulator group is constituted using the accumulator of low capacity, capacitance group is constituted using super capacitor series-parallel connection；Under the control of intelligence control system, high current when generating set starts needed for motor starting is provided by capacitance group, uses low current to charge for capacitance group by accumulator；Its method is, when cluster engine does not start, is maintained the state of battery charging；When receiving generating set startup order, then after the voltage difference of two branches of control is reduced in threshold range, high current needed for cluster engine startup is provided by capacitance group；The present invention is using capacitance group as main out-put supply, using the accumulator of low capacity, extends service lifetime of accumulator and can greatly reduce the volume and weight of starter.
Description
Technical field
The invention belongs to generator set control technical fields, more particularly, to a kind of generating set starter and open
Flowing control method.
Background technology
Diesel generating set by diesel engine generally by a diesel engine and a generating set at driving hair
Motor operation generates electric power output.The starter of diesel generating set is with electromagnetic contactor and unidirectional friction clutch
Direct current series motor, coordinates with the total contactor of starter relay, start button contactor and battery, has flywheel for starting
Diesel engine.Starting electric moter voltage is 24v, can reach 2000A in the electric current for starting moment, and the time maintained is in 5s
Left and right.
Big due to starting immediate current, traditional startup power supply starts motor using the accumulator series-parallel connection of polylith 190Ah
With executing agency power, battery charger it is sufficiently bulky, weight is bigger than normal, and accumulator is also chronically at heavy-current discharge work
Condition, the service life is shorter, needs to be replaced frequently.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of generating set starter and open
Flowing control method, its object is to solve the short technical problem of existing diesel generator set starting device service life.
To achieve the above object, according to one aspect of the present invention, a kind of generating set starter is provided, including mutual
Intelligence control system, the first branch and the second branch being in parallel；Anode in parallel and negative terminal in parallel start as generating set to be filled
Set the interface with generating set；
Under the control of its intelligence control system, provided by the second branch big needed for motor starting when generating set starts
Electric current, the first branch are then provided as the low current of the second branch charging.
Preferably, above-mentioned generating set starter, the first branch include concatenated first contactor, the first accumulator
With the second accumulator；The second branch includes concatenated second contactor, the first capacitance and the second capacitance；
Wherein, intelligence control system by control first contactor and second contactor break-make, to control the first electric power storage
Pond, the second accumulator, the first capacitance, the second capacitance voltage；
Under the control of intelligence control system, motor starting when generating set starts is provided by the first capacitance and the second capacitance
Required high current is provided as the electric current of the first capacitance and the second capacitor charging by the first accumulator and the second accumulator.
Preferably, above-mentioned diesel generator set starting device, intelligence control system include power module, at data acquisition
Manage module, protection module, Logic control module and charging module；
Wherein, the first input end of power module is for connecting alternating current, and the second input terminal is for connecting external digital power supply；
The power end of the power end of the digital sampling and processing, the power end of protection module and Logic control module with power supply mould
The output end of block connects；The first input end of the digital sampling and processing is used to receive the voltage of the first and second accumulators
The voltage signal of signal, the first and second capacitances, the second input terminal are used to receive the current signal of the first and second accumulators, the
One and second capacitance current signal, third input terminal is used to receive temperature signal, first and the of the first and second accumulators
The temperature signal of two capacitances；First output end of the input terminal connection digital sampling and processing of the protection module；
Output end, the second input terminal of the first input end connection protection module of Logic control module connect at data acquisition
Manage the second output terminal of module；First output of first output end of the Logic control module as the intelligence control system
Interface, for connecting the first contactor and second contactor；The input terminal of the charging module connects Logic control module
The second output interface as the intelligence control system of second output terminal, power end connection external alternating current, output end, be used for
Connect the first accumulator, the second accumulator, the first capacitance and the second capacitance；
Wherein, power module is used for as digital sampling and processing, protection module and Logic control module power supply；Data are adopted
Collection processing module is used to obtain voltage, electric current and the temperature of the first accumulator, the second accumulator, the first capacitance and the second capacitance
Degree；Protection module is used to generate protection control signal according to the voltage of accumulator and capacitance, electric current and temperature；When the voltage,
Electric current or temperature over-range are then acted by Logic control module control contactor, play the role of protecting accumulator and capacitance；It patrols
Control module is collected for the output according to voltage difference and protection module between the first branch and the second branch, control first connects
The break-make of tentaculum and second contactor；Charging module is used to be the first accumulator, the second accumulator, the first capacitance and the second capacitance
Charging.
Purpose to realize the present invention, other side according to the invention are based on above-mentioned generating set starter, provide
A kind of generating set starts control method, specific as follows：
(a) when cluster engine does not start, control first contactor conducting, second contactor disconnects, to be reached for first
The purpose of accumulator and the charging of the second accumulator；
(b) when receiving generating set startup order, the voltage of the first branch and the second branch both ends is detected respectively；If the
Voltage difference between one branch and the second branch is more than predetermined threshold value, then controls first contactor disconnection, second contactor conducting,
It charges for the second branch, to reduce the voltage difference between the first branch and the second branch；It is preset until the voltage difference is no more than
Threshold value, control first contactor conducting, starts generating set；
When the voltage phase difference of the voltage of the first branch and the second branch is larger, two branch circuit parallel connections are equivalent to
One and second accumulator short circuit；Therefore it needs to be first that the second branch charges, to reduce the voltage difference between two branches.
Preferably, above-mentioned generating set starts control method, in step (a), is determined according to the voltage at accumulator both ends
Charge mode, including constant-voltage charge pattern, constant current charging mode or floating charge pattern, to maintain the voltage of accumulator.
Preferably, above-mentioned generating set starts control method, and predetermined threshold value is 2 volts.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain following has
Beneficial effect：
Generating set starter provided by the present invention, using two branch series-parallel connections, a branch is accumulator group, separately
One branch is capacitance group；Accumulator group is constituted using the accumulator of two groups of low capacities, capacitance is constituted using super capacitor series-parallel connection
Group；Under the control of intelligence control system, high current when generating set starts needed for motor starting is provided by capacitance group, by storing
Battery uses low current to charge for capacitance group；
Due to using capacitance group as main out-put supply, not needing accumulator and providing the height electricity that generator starts moment
Pressure, high current, therefore the accumulator of low capacity may be used, it is only used for as capacitor charging；The body of starter can greatly be reduced
Product and weight, reach equipment lightweight, the purpose of micromation；
On the other hand, in this starter provided by the invention, accumulator needs not be provided that high current is powered, it is not necessary to long
Phase is in heavy-current discharge operating mode, with the startup for fully relying on the high current needed for accumulator offer motor starting in the prior art
Device is compared, and the service life of accumulator can be extended, and is extended the maintenance period of generator starter, can be significantly reduced dimension
Protect cost.
Description of the drawings
Fig. 1 is the system schematic of generating set starter in the prior art；
Fig. 2 is the system schematic of generating set starter provided in an embodiment of the present invention；
Fig. 3 is the functional block diagram of the intelligence control system of generating set starter provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
The system of the generating set starter used in the prior art is as schematically shown in Figure 1, including charger and extremely
The accumulator of few 4 pieces of 190Ah；Since big electric unit starting immediate current is big, given using polylith large-capacity battery series-parallel connection
Start motor to power with executing agency；Accumulator is chronically at heavy-current discharge operating mode, and service life is shorter；Also, using more
The volume and weight for the generating set starter that a large-capacity battery is constituted is also very big.
Shown in Fig. 2, it is the system schematic for the generating set starter that embodiment provides, including the intelligence being mutually in parallel
Control system, the first branch and the second branch；Anode in parallel and negative terminal in parallel are as generating set starter and generating set
Interface, for connecting generating set.
In embodiment, using the accumulator and the first contactor SQ1 composition first branchs of two groups of low capacity 100Ah；Using
Two super capacitors constitute the second branch with second contactor SQ2；It is powered by the way of accumulator group and capacitance group series-parallel connection；By
Intelligence control system controls the voltage of accumulator group and super capacitor group, exports every defencive function of logic and device.
High current when generating set starts needed for motor starting is provided by the capacitance group of the second branch；The storage of the first branch
Battery pack is then provided as the low current of the capacitance group charging of the second branch；Using super capacitor as main out-put supply, electric power storage
Pond group need not be chronically under heavy-current discharge operating mode, thus extend the service life of accumulator, extend generator startup
The maintenance period of device, high degree use manpower and material resources sparingly；Also, it, can due to the low current for only needing to be provided as capacitance group charging
To be realized using the accumulator group of low capacity；The accumulator group volume and weight of low capacity are smaller, thus reach and open generator
Dynamic device micromation, light-weighted purpose.
In embodiment, the functional block diagram of intelligence control system is as shown in Figure 3, which is characterized in that the intelligence control system
Including power module, digital sampling and processing, protection module, Logic control module and charging module；
The first input end of the power module is for connecting alternating current, and the second input terminal is for connecting digital power；It is described
The power end of the power end of digital sampling and processing, the power end of protection module and Logic control module with power module
Output end connects；The first input end of the digital sampling and processing is for receiving battery tension signal and capacitance voltage letter
Number, the second input terminal is for receiving battery current signal and capacitance current signal, and third input terminal is for receiving accumulator temperature
Spend signal and capacitance temperature signal；First output end of the input terminal connection digital sampling and processing of the protection module；Institute
The output end of the first input end connection protection module of Logic control module is stated, the second input terminal connects digital sampling and processing
Second output terminal；First output interface of first output end of the Logic control module as the intelligence control system,
For connecting first contactor and second contactor；Second output of the input terminal connection Logic control module of the charging module
End, power end then connect external alternating current, second output interface of the output end as the intelligence control system, for connecting first
Accumulator, the second accumulator, the first capacitance and the second capacitance.
The startup that generating set starter provided in this embodiment is applied to diesel generating set controls, and is sent out in diesel oil
When motivation group does not start, control first contactor SQ1 is connected, second contactor SQ2 is disconnected；Intelligence control system is stored by detecting
The voltage at battery both ends, using corresponding charge mode (constant pressure, constant current, floating charge), to maintain the voltage of accumulator.
When start-up operation, since the voltage difference between super capacitor and accumulator is bigger, if directly simultaneously two each branches
Connection is equivalent to accumulator short circuit；Therefore, intelligence control system detects the voltage of accumulator and super capacitor both ends first, if
The voltage phase difference of the two is larger, just disconnects first contactor SQ1, unicom second contactor SQ2, first charges to super capacitor；It waits for
After voltage difference between accumulator and super capacitor is within the 2v, then unicom first contactor SQ1, it can normally start hair at this time
Motor group.This generator starter that embodiment provides is suitable for the diesel generating set of various large sizes, has instantaneous defeated
Go out the advantages of electric current is big, light-weight, small, convenient for safeguarding.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of generating set starter, which is characterized in that including intelligence control system, the first branch and being mutually in parallel
Two branches；The interface of anode in parallel and negative terminal in parallel as generating set starter and generating set；
The first branch is accumulator group, including concatenated first contactor, the first accumulator and the second accumulator；
The second branch is capacitance group, including concatenated second contactor, the first capacitance and the second capacitance；
The intelligence control system is by controlling the break-make of first contactor and second contactor, to control the first accumulator, the
The voltage of two accumulators, the first capacitance and the second capacitance；Under the control of the intelligence control system, by first capacitance and
Second capacitance provides the electric current needed for motor starting when generating set starts, and is provided by first accumulator and the second accumulator
For the electric current of the first capacitance and the second capacitor charging；
Under the control of the intelligence control system, provided by the capacitance group of the second branch big needed for generating set startup
Electric current, the accumulator group of the first branch are provided as the low current of the capacitance group charging of the second branch；Utilize the capacitance group
Main out-put supply as generating set starter；
When cluster engine does not start, be battery charging to maintain the voltage of accumulator；Start when receiving generating set
Order is first charged to the second branch, if the voltage difference between the first branch and the second branch is more than predetermined threshold value until described
Voltage difference is no more than predetermined threshold value, restarts generating set；
The intelligence control system includes power module, digital sampling and processing, protection module, Logic control module and charging
Module；The first input end of the power module is for connecting alternating current, and the second input terminal is for connecting external digital power supply；It is described
The power end of the power end of digital sampling and processing, the power end of protection module and Logic control module with power module
Output end connects；The first input end of the digital sampling and processing is used to receive the voltage letter of the first and second accumulators
Number, the voltage signals of the first and second capacitances, the second input terminal is used to receive the current signal of the first and second accumulators, first
With the current signal of the second capacitance, third input terminal is used to receive the temperature signal of the first and second accumulators, first and second
The temperature signal of capacitance；First output end of the input terminal connection digital sampling and processing of the protection module；The logic
The output end of the first input end connection protection module of control module, the second of the second input terminal connection digital sampling and processing
Output end；First output interface of first output end of the Logic control module as the intelligence control system, for connecting
Connect the first contactor and second contactor；Second output of the input terminal connection Logic control module of the charging module
The second output interface of end, power end connection external alternating current, output end as the intelligence control system, stores for connecting first
Battery, the second accumulator, the first capacitance and the second capacitance.
2. generating set starter as described in claim 1, which is characterized in that the power module is used to acquire for data
Processing module, protection module and Logic control module power supply；
The digital sampling and processing is for obtaining first accumulator, the second accumulator, the first capacitance and the second capacitance
Voltage, electric current and temperature；The protection module is used to generate protection control signal according to the voltage, electric current and temperature,
It is acted by Logic control module control contactor, plays the role of protecting accumulator and capacitance；The Logic control module is used
In the output according to voltage difference and protection module between the first branch and the second branch, control first contactor and second connects
The break-make of tentaculum；The charging module is used to be the first accumulator, the second accumulator, the first capacitance and the second capacitor charging.
3. a kind of generating set based on generating set starter as claimed in claim 1 or 2 starts control method, feature
It is, it is specific as follows：
(a) when cluster engine does not start, control first contactor conducting, second contactor disconnects, and is the first accumulator and the
Two accumulators charge；
(b) when receiving generating set startup order, the voltage of the first branch and the second branch both ends is detected respectively；If first
Voltage difference between road and the second branch is more than predetermined threshold value, then control first contactor disconnect, second contactor conducting, be the
Two branches charge, to reduce the voltage difference between the first branch and the second branch；Until the voltage difference be no more than predetermined threshold value,
First contactor conducting is controlled, generating set is started.
4. generating set as claimed in claim 3 starts control method, which is characterized in that in the step (a), according to electric power storage
The voltage at pond both ends determines charge mode, including constant-voltage charge pattern, constant current charging mode or floating charge pattern, to maintain accumulator
Voltage.
5. generating set as described in claim 3 or 4 starts control method, which is characterized in that the predetermined threshold value is 2 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785304.2A CN106224151B (en) | 2016-08-31 | 2016-08-31 | A kind of generating set starter and start control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785304.2A CN106224151B (en) | 2016-08-31 | 2016-08-31 | A kind of generating set starter and start control method |
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| CN106224151A CN106224151A (en) | 2016-12-14 |
| CN106224151B true CN106224151B (en) | 2018-09-07 |
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| CN110789475B (en) * | 2019-10-23 | 2021-04-02 | 长城汽车股份有限公司 | Composite power supply management system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002256962A (en) * | 2001-02-26 | 2002-09-11 | Mikuni Corp | Electric power source device for internal combustion engine |
| EP1882850A4 (en) * | 2005-05-17 | 2013-03-06 | Panasonic Corp | Engine start device |
| CN101652263A (en) * | 2007-04-04 | 2010-02-17 | 库帕技术公司 | Methods and systems for supplying power to a load |
| DE102010062708B4 (en) * | 2010-12-09 | 2019-08-08 | Robert Bosch Gmbh | Mobile power supply |
| CN102182605B (en) * | 2011-04-19 | 2015-12-09 | 南车戚墅堰机车有限公司 | The method of performing diesel engine electrical startup on super capacitor assisted diesel locomotive |
| CN102691607B (en) * | 2012-06-08 | 2014-12-03 | 汤如法 | Auxiliary starting device of vehicle engine |
| CN102705128A (en) * | 2012-06-25 | 2012-10-03 | 苏州大学 | Engine starting system |
| CN204089238U (en) * | 2014-07-26 | 2015-01-07 | 江西清华泰豪三波电机有限公司 | Super capacitor Quick-start ignitor low-temperature on a kind of engine |
| CN206035704U (en) * | 2016-08-31 | 2017-03-22 | 武汉华海通用电气有限公司 | Generating set starting drive |
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