CN110295994A - Multi fuel generating set with double protection systems - Google Patents
Multi fuel generating set with double protection systems Download PDFInfo
- Publication number
- CN110295994A CN110295994A CN201910715579.2A CN201910715579A CN110295994A CN 110295994 A CN110295994 A CN 110295994A CN 201910715579 A CN201910715579 A CN 201910715579A CN 110295994 A CN110295994 A CN 110295994A
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- Prior art keywords
- generating set
- fuel
- switch
- protective module
- unit
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- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 230000001681 protective effect Effects 0.000 claims abstract description 56
- 238000002485 combustion reaction Methods 0.000 claims description 29
- 230000001360 synchronised effect Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 18
- 239000003502 gasoline Substances 0.000 description 17
- 239000003345 natural gas Substances 0.000 description 9
- 239000002737 fuel gas Substances 0.000 description 8
- 239000003915 liquefied petroleum gas Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
- F02B69/04—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel for gaseous and non-gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a kind of multi fuel generating sets with double protection systems, including generating set, protective module and control switch, the control switch is used to provide switching signal to protective module when switching fuel, when protective module does not receive switching signal, the rated output power protection threshold value of protective module is the first preset value, when protective module receives switching signal, the rated output power protection threshold value of protective module is the second preset value, when the output power of generating set is greater than the first preset value or the second preset value, power output of the protective module cutting to output interface.In the present invention; it is provided with protective module and control switch; the rated output power protection threshold value of generating set is switched over while switching fuel; to make the rated output power of generating set that threshold value be protected to be adapted always with the fuel used; reduce unnecessary shutdown; structure is simple, easy to use, practical.
Description
Technical field
The present invention relates to multi fuel generating set field, in particular to a kind of multi fuel generator with double protection systems
Group.
Background technique
The problem of internal combustion engine generator group is at present for fuel economy, discharge, using usable gasoline, natural gas or liquid
The internal combustion engine of the pluralities of fuels such as liquefied oil gas, but such internal combustion engine generator group there is a problem of one it is bigger, that is, exist
When using Fuel Petroleum, the rated output power of generating set is higher；When using fuel such as natural gas or liquefied petroleum gas,
The rated output power ratio of generating set is low when using gasoline, but generating set protection system is when being according to gasoline is used
Rated output power design, this is resulted in when using fuel such as natural gas or liquefied petroleum gas, when generating set output work
When rate exceeds rated output power, it is still unable to reach the protection threshold value of generating set protection system, therefore generating set protection system
System does not work, so as to cause generating set revolving speed decline because of output power deficiency, until causing stopping accident；And user
Because not knowing is that reason causes to shut down, needing to take a significant amount of time makes with energy progress malfunction elimination, poor user experience
Increased with inconvenient, use cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can be while switching fuel to rated output power
What protection threshold value switched over has the multi fuel generating set of double protection systems.
Technical scheme is as follows:
A kind of multi fuel generating set with double protection systems, including generating set, protective module and control switch, institute
It states generating set to be electrically connected by protective module with the output interface of generating set, the protective module is electrically connected with control switch
It connects, the control switch is used to provide switching signal to protective module when switching fuel, when protective module does not receive switching letter
Number when, protective module rated output power protection threshold value be the first preset value, when protective module receives switching signal, protection
The rated output power protection threshold value of module is the second preset value, and the protective module is also used to detect the output work of generating set
Rate, when the output power of generating set is greater than the first preset value or the second preset value, the protective module cutting connects output
The power output of mouth.
Further, the protective module includes rectification unit, filter unit, inversion unit, control unit, sampling unit
And driving unit；The rectification unit is used to for the medium frequency alternating current that generating set exports being rectified into direct current, and the filtering is single
Harmonic components in direct current of the member for filtering out rectification unit output；The inversion unit is used to turn in filtered direct current
Industrial-frequency alternating current is turned to, the driving unit is used to provide driving voltage to inversion unit；The sampling unit is used for inversion
The voltage and current signal of unit output is sampled, and sampled signal is exported to control unit；Described control unit and control
System switch electrical connection, the standard value which sets according to the switching signal switch control unit that control switch provides, and
Sampled signal is compared with the standard value of setting, when sampled signal is greater than the standard value of setting, control driving unit stops
Work.
Further, the generating set includes multi-fuel internal combustion engine and Permanent magnet synchronous generator, and the magneto is same
Step generator is electrically connected with protective module.
Further, the protective module includes high current A.C. contactor, the first current limiting switch and the second current limiting switch,
The high current A.C. contactor be equipped with feeder ear, input terminal, the first output end and second output terminal, the one of the control switch
End is electrically connected with the feeder ear of high current A.C. contactor, and the other end of the control switch connects to power supply, the high current
The input terminal of A.C. contactor is electrically connected with generating set, and the first output end is electrically connected with the input terminal of the first current limiting switch, the
Two output ends are electrically connected with the input terminal of the second current limiting switch, the output end of first current limiting switch and the second current limiting switch
Output end electrical connection.
Further, the generating set includes multi-fuel internal combustion engine and Permanent magnet synchronous generator, and the magneto is same
Step generator is electrically connected with inverter, and the inverter is electrically connected with the input terminal of high current A.C. contactor.
Further, the generating set includes multi-fuel internal combustion engine and electromagnetic type synchronous generator, and the electromagnetic type is same
Step generator is electrically connected with the input terminal of high current A.C. contactor.
Further, the generating set is switched equipped with Fuel switching, and the control switch is microswitch, which opens
It closes and drives control switch in unlatching and closed form while the Fuel switching switching with Fuel switching switch gearing
Switch between state.
Further, the Fuel switching switch is connected with gas pressure-reducing valve.
The utility model has the advantages that being provided with protective module and control switch in the present invention, multi fuel is sent out while switching fuel
The rated output power protection threshold value of motor group switches over, so that the rated output power of multi fuel generating set be made to protect threshold
Value is adapted with the fuel that uses always, reduces unnecessary shutdown, and structure is simple, easy to use, practical.
Detailed description of the invention
Fig. 1 is the structural block diagram of the embodiment of the present invention one；
Fig. 2 is the structural block diagram of the embodiment of the present invention two；
Fig. 3 is the structural block diagram of the embodiment of the present invention three.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " connection " should do broad sense reason
Solution, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can be directly connected, it can also
Indirectly connected through an intermediary, for the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term.
Embodiment one
Multi fuel generating set with double protection systems includes generating set, protective module 6 and control switch 7, described
Generating set is electrically connected by protective module 6 with the output interface 8 of generating set, and the protective module 6 is electrically connected with control switch 7
It connects, the control switch 7 is used to provide switching signal to protective module 6 when switching fuel, when protective module 6 does not receive switching
When signal, the rated output power protection threshold value of protective module 6 is the first preset value, and first preset value makes for generating set
Rated output power when with gasoline, when protective module 6 receives switching signal, the rated output power of protective module 6 is protected
Threshold value is the second preset value, and second preset value is rated output function when generating set uses natural gas or liquefied petroleum gas
Rate, the protective module 6 are also used to detect the output power of generating set, preset when the output power of generating set is greater than first
When value or the second preset value, power output of the cutting of protective module 6 to output interface 8.
As shown in Figure 1, generating set described in the present embodiment includes that multi-fuel internal combustion engine 1, Fuel switching switch 2, combustion gas subtract
Pressure valve 3 and Permanent magnet synchronous generator 4.The multi-fuel internal combustion engine 1 can burns gasoline, natural gas or liquefied petroleum gas, and
The energy that burning generates is converted to mechanical energy, the output shaft and Permanent magnet synchronous generator 4 of the multi-fuel internal combustion engine 1 input
End connection, for driving Permanent magnet synchronous generator 4 to generate electricity.The Fuel switching switch 2 is located at multi-fuel internal combustion engine 1
On, the Fuel switching switch 2 is equipped with gasoline gear and fuel gas gear, and the Fuel switching switch 2 is inputted equipped with gasoline
The fuel of interface, fuel gas input interface and fuel output interface, the fuel output interface and multi-fuel internal combustion engine 1 inputs
Interface connection.The fuel gas input interface is connect with gas pressure-reducing valve 3, and the gas pressure-reducing valve 3 is for reducing gaseous state combustion
The initial pressure of material makes pressure that multi-fuel internal combustion engine 1 is suitble to burn.The control switch 7 uses microswitch, the control switch
7 link with Fuel switching switch 2.
The Permanent magnet synchronous generator 4 is connected with inverter, re-writes program in the single-chip microcontroller of inverter, makes inverse
Becoming device becomes protective module 6, and the protective module 6 includes rectification unit 51, filter unit 52, inversion unit 53, control unit
54, sampling unit 55 and driving unit 56；The midfrequent AC power supply that the rectification unit 51 issues Permanent magnet synchronous generator 4
It is rectified into direct current, the filter unit 52 filters out the harmonic components in the direct current of the output of rectification unit 51, reduces harmonic wave pair
Subsequent processing is convenient in the influence of remaining electrical part；Filtered direct current is passed through inversion and low pass filtered by the inversion unit 53
Wave is converted into industrial-frequency alternating current and is output to output interface 8；The sampling unit 55 be used for the voltage that exports inversion unit 53 and
Current signal is sampled, and sampled signal is exported to control unit 54；Described control unit 54 be used for by sampled signal with
The standard value of setting is compared, and the driving unit 56 is used to provide driving voltage to inversion unit 53, when sampled signal is big
It controls driving unit 56 when the standard value of setting to stop providing driving voltage to inversion unit 53, thus tripping protection module 6
To the power output of output interface 8.
Described control unit 54 is electrically connected with control switch 7, and described control unit 54 includes single-chip microcontroller, in control unit 54
In be provided with first threshold and second threshold, the first threshold is adapted with the first preset value, the second threshold and second
Preset value is adapted；Described control unit 54 sets first threshold or second threshold according to the switching signal that control switch 7 provides
It is set to standard value.
When multi-fuel internal combustion engine 1 is worked using gasoline, i.e., the described Fuel switching switch 2 is placed in gasoline gear, and gasoline is defeated
Incoming interface is connected to fuel output interface, and control switch 7 and Fuel switching switch 2 link, at this point, described control unit 54 is not received
The switching signal provided to control switch 7, sets standard value for first threshold, when the output power of generating set is more than first
When preset value, control unit 54 detects that sampled signal is greater than first threshold, and control driving unit 56 stops to inversion unit 53
Driving voltage is provided, thus power output of the cutting to output interface 8.
When multi-fuel internal combustion engine 1 is worked using natural gas or liquefied petroleum gas, i.e., the described Fuel switching switch 2 is placed in gas
State fuel gear, fuel gas input interface are connected to fuel output interface, and control switch 7 and Fuel switching switch 2 link, and are given
Control unit 54 provides switching signal, and described control unit 54 receives switching signal, sets standard value for second threshold, work as hair
When the output power of motor group is more than the second preset value, control unit 54 detects that sampled signal is greater than second threshold, and control is driven
Moving cell 56 stops providing driving voltage to inversion unit 53, thus power output of the cutting to output interface 8.
Embodiment two
Multi fuel generating set with double protection systems includes generating set, protective module 6 and control switch 7, described
Generating set is electrically connected by protective module 6 with the output interface 8 of generating set, and the protective module 6 is electrically connected with control switch 7
It connects, the control switch 7 is used to provide switching signal to protective module 6 when switching fuel, when protective module 6 does not receive switching
When signal, the rated output power protection threshold value of protective module 6 is the first preset value, and first preset value makes for generating set
Rated output power when with gasoline, when protective module 6 receives switching signal, the rated output power of protective module 6 is protected
Threshold value is the second preset value, and second preset value is rated output function when generating set uses natural gas or liquefied petroleum gas
Rate, the protective module 6 are also used to detect the output power of generating set, preset when the output power of generating set is greater than first
When value or the second preset value, power output of the cutting of protective module 6 to output interface 8.
As shown in Fig. 2, generating set described in the present embodiment includes that multi-fuel internal combustion engine 1, Fuel switching switch 2, combustion gas subtract
Pressure valve 3 and Permanent magnet synchronous generator 4.The multi-fuel internal combustion engine 1 can burns gasoline, natural gas or liquefied petroleum gas, and
The energy that burning generates is converted to mechanical energy, the output shaft and Permanent magnet synchronous generator 4 of the multi-fuel internal combustion engine 1 input
End connection, for driving Permanent magnet synchronous generator 4 to generate electricity.The Fuel switching switch 2 is located at multi-fuel internal combustion engine 1
On, the Fuel switching switch 2 is equipped with gasoline gear and fuel gas gear, and the Fuel switching switch 2 is inputted equipped with gasoline
The fuel of interface, fuel gas input interface and fuel output interface, the fuel output interface and multi-fuel internal combustion engine 1 inputs
Interface connection.The fuel gas input interface is connect with gas pressure-reducing valve 3, and the gas pressure-reducing valve 3 is for reducing gaseous state combustion
The initial pressure of material makes pressure that multi-fuel internal combustion engine 1 is suitble to burn.The control switch 7 uses microswitch, the control switch
7 link with Fuel switching switch 2.
The protective module 6 includes high current A.C. contactor 63, the first current limiting switch 64 and the second current limiting switch 65, institute
It states high current A.C. contactor 63 and is equipped with feeder ear, input terminal, the first output end and second output terminal, the control switch 7
One end is electrically connected with the feeder ear of high current A.C. contactor 63, and the other end of the control switch 7 connects to power supply, and passes through control
Make the attracting state that switch 7 switches high current A.C. contactor 63；The input terminal of the high current A.C. contactor 63 and inversion
The output end of device 5 is electrically connected, and the first output end is electrically connected with the input terminal of the first current limiting switch 64, second output terminal and the second limit
The input terminal electrical connection of switch 65 is flowed, the output end of first current limiting switch 64 and the output end of the second current limiting switch 65 are electrically connected
It connects；The protective current of first current limiting switch 64 is adapted with the first preset value, the protection electricity of second current limiting switch 65
Stream is adapted with the second preset value.
The Fuel switching switch 2 is equipped with gasoline gear and fuel gas gear, uses gasoline work in multi-fuel internal combustion engine 1
When making, the Fuel switching switch 2 is placed in gasoline gear, and control switch 7 and Fuel switching switch 2 link, and is in open-circuit condition,
Power supply is disconnected with high current A.C. contactor 63, and high current A.C. contactor 63 is not attracted, at this point, high current ac contactor
The input terminal of device 63 is connect by the first output end with the first current limiting switch 64, when the output power of generating set is more than first pre-
If when value, 64 overcurrent protection of the first current limiting switch, thus power output of the cutting to output interface 8.
When multi-fuel internal combustion engine 1 is worked using natural gas or liquefied petroleum gas, the Fuel switching switch 2 is placed in gaseous state
Fuel gear, control switch 7 and Fuel switching switch 2 link, and are in closed state, and power supply gives high current by control switch 7
A.C. contactor 63 is powered, and high current A.C. contactor 63 is attracted, and the input terminal of high current A.C. contactor 63 is defeated by second
Outlet is connect with the second current limiting switch 65, when the output power of generating set is more than the second preset value, the second current limiting switch 65
Overcurrent protection, thus power output of the cutting to output interface 8.
Embodiment three
As shown in figure 3, the Permanent magnet synchronous generator 4 in embodiment two is replaced with into electromagnetic type synchronous generator 9, it is described
The output shaft of multi-fuel internal combustion engine 1 is connect with 9 input terminal of electromagnetic type synchronous generator, since electromagnetic type synchronous generator 9 exports
Voltage be power-frequency voltage, therefore also while removing inverter 5, by the output end of electromagnetic type synchronous generator 9 directly with big electricity
The input terminal electrical connection of A.C. contactor 63 is flowed, the working principle of other parts is identical as embodiment two.
Certainly, in the above-described embodiments, the control switch 7 can also be separately provided, not with Fuel switching switch 2
It is dynamic, while switching the fuel that multi-fuel internal combustion engine 1 uses, operation is switched over to control switch 7 manually.
The undescribed part of the invention is identical with the prior art, and this will not be repeated here.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention
Equivalent structure made by specification and accompanying drawing content is directly or indirectly used in other related technical areas, similarly at this
Within the scope of patent protection of invention.
Claims (8)
1. a kind of multi fuel generating set with double protection systems, it is characterised in that: including generating set, protective module and control
System switch, the generating set are electrically connected by protective module with the output interface of generating set, the protective module and control
Switch electrical connection, the control switch is used to provide switching signal to protective module when switching fuel, when protective module is not received
When to switching signal, the rated output power protection threshold value of protective module is the first preset value, when protective module receives switching letter
Number when, the rated output power protection threshold value of protective module is the second preset value, and the protective module is also used to detect generator
The output power of group, when the output power of generating set is greater than the first preset value or the second preset value, the protective module is cut
The disconnected power output to output interface.
2. the multi fuel generating set with double protection systems according to claim 1, it is characterised in that: the protection mould
Block includes rectification unit, filter unit, inversion unit, control unit, sampling unit and driving unit；The rectification unit is used for
The medium frequency alternating current that generating set exports is rectified into direct current, the filter unit is used to filter out the direct current of rectification unit output
Harmonic components in electricity；The inversion unit is used to filtered DC conversion be industrial-frequency alternating current, the driving unit
For providing driving voltage to inversion unit；The voltage and current signal that the sampling unit is used to export inversion unit carries out
Sampling, and sampled signal is exported to control unit；Described control unit is electrically connected with control switch, and the control unit is according to control
The standard value for the switching signal switch control unit setting that system switch provides, and sampled signal and the standard value of setting are compared
Compared with when sampled signal is greater than the standard value of setting, control driving unit stops working.
3. the multi fuel generating set with double protection systems according to claim 2, it is characterised in that: the generator
Group includes multi-fuel internal combustion engine and Permanent magnet synchronous generator, and the Permanent magnet synchronous generator is electrically connected with protective module.
4. the multi fuel generating set with double protection systems according to claim 1, it is characterised in that: the protection mould
Block includes high current A.C. contactor, the first current limiting switch and the second current limiting switch, and the high current A.C. contactor, which is equipped with, to be supplied
Electric end, input terminal, the first output end and second output terminal, one end of the control switch and the power supply of high current A.C. contactor
End electrical connection, the other end of the control switch connect to power supply, the input terminal and generator of the high current A.C. contactor
Group electrical connection, the first output end are electrically connected with the input terminal of the first current limiting switch, and second output terminal is defeated with the second current limiting switch
Enter end electrical connection, the output end of first current limiting switch is electrically connected with the output end of the second current limiting switch.
5. the multi fuel generating set with double protection systems according to claim 4, it is characterised in that: the generator
Group includes multi-fuel internal combustion engine and Permanent magnet synchronous generator, and the Permanent magnet synchronous generator is electrically connected with inverter, described
Inverter is electrically connected with the input terminal of high current A.C. contactor.
6. the multi fuel generating set with double protection systems according to claim 4, it is characterised in that: the generator
Group includes multi-fuel internal combustion engine and electromagnetic type synchronous generator, the electromagnetic type synchronous generator and high current A.C. contactor
Input terminal electrical connection.
7. the multi fuel generating set with double protection systems according to claim 1-6, it is characterised in that: institute
It states generating set to switch equipped with Fuel switching, the control switch is microswitch, and the control switch and Fuel switching switch join
It is dynamic, while the Fuel switching switching, control switch is driven to switch between unlatching and closed state.
8. the multi fuel generating set with double protection systems according to claim 7, it is characterised in that: the fuel is cut
It changes switch and is connected with gas pressure-reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715579.2A CN110295994A (en) | 2019-08-05 | 2019-08-05 | Multi fuel generating set with double protection systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715579.2A CN110295994A (en) | 2019-08-05 | 2019-08-05 | Multi fuel generating set with double protection systems |
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| Publication Number | Publication Date |
|---|---|
| CN110295994A true CN110295994A (en) | 2019-10-01 |
Family
ID=68032618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910715579.2A Pending CN110295994A (en) | 2019-08-05 | 2019-08-05 | Multi fuel generating set with double protection systems |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047710A (en) * | 2014-05-30 | 2014-09-17 | 浙江耀锋动力科技有限公司 | Multi-fuel power generator unit |
| CN105952530A (en) * | 2016-07-08 | 2016-09-21 | 浙江中坚科技股份有限公司 | Fuel feed system for multi-fuel variable-frequency generator |
| US20170022910A1 (en) * | 2015-06-12 | 2017-01-26 | Champion Engine Technology, LLC | Fuel system for a multi-fuel internal combusion engine |
| US20170254726A1 (en) * | 2016-03-07 | 2017-09-07 | General Electric Company | Method and systems for diagnosing an engine |
| CN210217913U (en) * | 2019-08-05 | 2020-03-31 | 重庆润通科技有限公司 | Multi-fuel generator set with double protection systems |
-
2019
- 2019-08-05 CN CN201910715579.2A patent/CN110295994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047710A (en) * | 2014-05-30 | 2014-09-17 | 浙江耀锋动力科技有限公司 | Multi-fuel power generator unit |
| US20170022910A1 (en) * | 2015-06-12 | 2017-01-26 | Champion Engine Technology, LLC | Fuel system for a multi-fuel internal combusion engine |
| US20170254726A1 (en) * | 2016-03-07 | 2017-09-07 | General Electric Company | Method and systems for diagnosing an engine |
| CN105952530A (en) * | 2016-07-08 | 2016-09-21 | 浙江中坚科技股份有限公司 | Fuel feed system for multi-fuel variable-frequency generator |
| CN210217913U (en) * | 2019-08-05 | 2020-03-31 | 重庆润通科技有限公司 | Multi-fuel generator set with double protection systems |
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