CN101920780A - Power supply system and method of shipping work - Google Patents
Power supply system and method of shipping work Download PDFInfo
- Publication number
- CN101920780A CN101920780A CN2009100531141A CN200910053114A CN101920780A CN 101920780 A CN101920780 A CN 101920780A CN 2009100531141 A CN2009100531141 A CN 2009100531141A CN 200910053114 A CN200910053114 A CN 200910053114A CN 101920780 A CN101920780 A CN 101920780A
- Authority
- CN
- China
- Prior art keywords
- storage unit
- energy
- power
- control module
- shipping work
- 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
Images
Abstract
The invention provides a power supply system of shipping work, which supplies small power electric energy by using a diesel engine electric generating set as an electric energy supply source and meets high power energy requirement for operation of a work mechanism by using an energy accumulating unit as a power supply source of the work mechanism. The invention also provides a power supply method of the shipping work. By adopting the power supply system and the method of the invention, compared with the traditional power supply scheme, the invention can save the fuel by over 40-60 percent, thereby the power and the oil consumption of the diesel engine unit are obviously reduced, and emission pollution is greatly reduced to achieve the aim of saving energy and reducing emission.
Description
Technical field
The present invention relates to shipping work energy supply technology, more particularly, relate to a kind of electric power system and method for shipping work.
Background technology
Many fields such as the operation boats and ships are widely used in that port construction, waterway regulation, underwater construction, mining, seabed pipe cable are laid, dangerous situation is anti-ly rescued, ocean exploitation, ocean utilization, fish production.Except that the overall performance of Partial Jobs boats and ships is close with ships that transport, generally all show unique characteristics.Pile-driving barge, the delivery that for example is used for the water project operation is thrown and to be unloaded a ship, crane ship, salvor, pipelaying vessel, cable layer etc.; Be used for towboat, dredger, dredger, suction-type dredge of harbor approach operation etc.; Be used for ocean exploitation drilling vessel, excavate extracting boat etc.; Be used for dredge of fishery or the like.See also shown in Figure 1ly, and the operation energy-provision way of above-mentioned various operation boats and ships generally is and adopts on the ship independently diesel powerplant (diesel engine and electrical generator) burning diesel oil, thereby provides electric energy for its Working mechanism carries out operation.
But there is following shortcoming in this operation power supply mode:
1, the diesel engine power configuration is excessive
Peak power needs when moving for peak load, command speed and the rated acceleration that satisfies above-mentioned Working mechanism, producer generally all adds surplus again at peak power and selects the high-power diesel generator set, and the continuous power during the common operation of Working mechanism only is its part.
2, diesel engine low load time ratio is too high
According to statistics: when shipping work, its corresponding diesel load is lower than 25% time of run up to more than 85%, still operation at full speed of diesel engine during this period not only causes a large amount of reserve powers to cause the fuel oil waste serious, but also has strengthened environmental pollution.
3, the regenerative electric energy that produces during operation does not obtain utilizing
Most operation boats and ships such as pile-driving barge, crane ship, salvor, dredger, excavation extracting boat, dredge or the like, when operation, all exist by the situation that produces regenerative electric energy in gravity acting, mechanism's deceleration and the braking procedure, and this type of regenerative electric energy has generally all consumed by braking resistor in vain at present, do not obtain actv. recovery and utilization, further cause waste of electric energy.
Summary of the invention
Defectives such as the oil consumption height that exists at present shipping work, seriously polluted and complex structure, the electric power system and the method that the purpose of this invention is to provide a kind of shipping work, this electric power system and method can reduce the oil consumption of shipping work significantly, improve the degree of utilization of fuel oil, thereby reach the energy-saving and emission-reduction purpose.
For this reason, the electric power system of shipping work of the present invention comprises:
As the diesel powerplant of electric energy supply source, carry out the miniwatt generating;
The AC/DC conv, input end is connected with diesel powerplant, and the electric energy that diesel powerplant is generated carries out the rectification processing;
As the Storage Unit of power supply source, input end is connected with the mouth of AC/DC conv, and the reception electric energy also charges;
The DC/DC changer, input end is connected with the mouth of Storage Unit, and the electric energy that Storage Unit is exported converts the constant high pressure electric current to; Mouth is connected with the Working mechanism of boats and ships, and the operation of Working mechanism is powered.
Described electric power system also comprises power control module, is connected between AC/DC conv and the Storage Unit, the working parameter in the Storage Unit is detected, and the charging of control Storage Unit.
The direct current (DC) of the fluctuation that described power control module is also exported the AC/DC conv is transformed into constant DC, for the Storage Unit charging, and
To be in energy storage few when Storage Unit, and during the very low initial condition of internal resistance, power control module carries out the current limliting management to the precharge of Storage Unit;
When diesel powerplant was worked, power control module kept the Storage Unit normality is charged;
When Storage Unit energy storage quota, power control module control diesel powerplant turn-offs;
When the Storage Unit energy storage was lower than the setting threshold values, power control module stoped the Working mechanism action, and the wait process of charging is carried out;
When the Storage Unit energy storage was lower than setting value, power control module control diesel powerplant restarted generating in order to charging.
Described diesel powerplant has governor, and described power control module also is connected with governor, by the control to governor, dynamically adjusts the rotating speed of diesel powerplant.
The mouth of described AC/DC conv also passes through change-over swith 160 direct cross-over connections to the Working mechanism of boats and ships.
The method of supplying power to of shipping work of the present invention comprises the steps:
A, the corresponding diesel powerplant of employing operation boats and ships carry out the miniwatt generating;
B, convert the alternating current that generates among the step a to direct current (DC) by AC/DC;
C, will the direct current (DC) among the step b charge in the input Storage Unit;
D, by the Storage Unit output DC, and after the DC/DC conversion, provide electric energy to the operation of the corresponding Working mechanism of boats and ships.
In described step c, by power control module the working parameter in the Storage Unit is detected, and charge in the input of the direct current (DC) among the controlled step b Storage Unit.
Described charging controlled step specifically comprises:
C1, the direct current (DC) that fluctuates among the step b is transformed into constant DC, for the Storage Unit charging;
C2, to be in energy storage few when Storage Unit, during the very low initial condition of internal resistance, the current limliting management carried out in the precharge of Storage Unit;
C3, when diesel powerplant is worked, keep the Storage Unit normality is charged;
C4, when Storage Unit energy storage quota, the control diesel powerplant turn-offs;
C5, when the Storage Unit energy storage is lower than when setting threshold values, stop the Working mechanism action, wait for that process of charging carries out;
C6, when the Storage Unit energy storage is lower than setting value, control diesel powerplant restart generating in order to the charging;
C7, according to the size of Storage Unit energy storage capacity, the control governor is dynamically adjusted the rotating speed of diesel powerplant;
C8, carry out communication, obtain data such as acting amount, speed, power drain, and, the PLC controller is proposed the speed control requirement of Working mechanism according to the energy storage situation of Storage Unit with the PLC controller of shipping work mechanism.
In described step c8:
If the Storage Unit operation irregularity will directly be powered to the Working mechanism of boats and ships through the direct current (DC) of AC/DC conversion by change-over swith, and corresponding Working mechanism will be carried out Control for Speed Limitation.
This method of supplying power to also comprises step e:
Working mechanism at boats and ships is in gravity acting, deceleration or glancing impact, reclaims by gravity acting, regenerative electric energy that deceleration or braking produced by Storage Unit;
If regenerative electric energy when the Storage Unit spill-over, carries out work by the brake unit and the braking resistor of control low capacity.
The electric power system of shipping work of the present invention and method, by providing low-power energy as the electric energy device for supplying with diesel powerplant, and with Storage Unit as operation supply source cumlative energy, and, can significantly reduce the generated output of diesel motor group for the operation of shipping work mechanism provides energy requirement.Like this, at ordinary times can be by the miniwatt generating to Storage Unit charging energy storage; And when the electronic work done of shipping work mechanism, energy is gushed out from Storage Unit is surge.Adopt such technical scheme, the power supply plan of the relative existing ship operation of the present invention can be saved more than the fuel oil 40%-60%, reduces pollution emissions, and has obvious social and economic benefits.
Therefore, the electric power system of shipping work of the present invention and method have and reduce oil consumption significantly, improve the degree of utilization of fuel oil, thereby reach the advantage of energy-saving and emission-reduction purpose.
Description of drawings
Fig. 1 is the structured flowchart of the electric power system of shipping work of the present invention;
Fig. 2 is the diagram of circuit of the method for supplying power to of shipping work of the present invention.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Main principle of design of the present invention is at ordinary times by adopting the electric energy supply source of diesel powerplant as Storage Unit, carry out miniwatt generating (or directly adopting the System for Small Power Diesel Generator group), Storage Unit is charged for a long time, and Storage Unit is effectively powered to the high-power operation of Working mechanism as main power supply source.
See also shown in Figure 1, the electric power system 100 of shipping work of the present invention comprises diesel powerplant 110 as the electric energy supply source, AC/DC conv 120, as the Storage Unit 130 and the DC/DC changer 140 of the power supply source of Working mechanism 1, diesel powerplant 110 comprises diesel engine 111 and electrical generator 112, carries out the miniwatt generating by the burning fuel oil; AC/DC conv 120 input ends are connected with diesel powerplant 110, and the electric energy that diesel powerplant 110 is generated carries out the rectification processing, generally can adopt diode rectification; Storage Unit 130 input ends are connected with the mouth of AC/DC conv 120, the reception electric energy also charges, need to prove at this, Storage Unit 130 can adopt super capacitor, also can adopt storage battery or other electrical storage device, and the Working mechanism 1 at boats and ships is in gravity acting, deceleration or glancing impact, and this Storage Unit 130 can also be used to receiving by gravity acting, regenerative electric energy that deceleration or braking produced; DC/DC changer 140 input ends are connected with the mouth of Storage Unit 130, and the electric energy that Storage Unit 130 is exported converts the constant high pressure electric current to; Mouth is connected with the Working mechanism 1 of boats and ships, operation to Working mechanism 1 is powered, and described Working mechanism 1 can or excavate the high-power Working mechanism of the operation boats and ships such as grab bucket mechanism of extracting boat for hoist mechanism, the dredger of the piling mechanism of pile-driving barge, crane ship.This electric power system 100 also comprises power control module 150, be connected between AC/DC conv 120 and the Storage Unit 130, working parameter in the Storage Unit 130 is detected, and the charging of control Storage Unit 130, this power control module 150 can be selected the CPU integral control circuit for use.The direct current (DC) of the fluctuation that this power control module 150 is also exported AC/DC conv 120 is transformed into constant DC, for Storage Unit 130 chargings, and to be in energy storage few when Storage Unit 130, during the very low initial condition of internal resistance, the current limliting management is carried out in the precharge of 150 pairs of Storage Units 130 of power control module; When diesel powerplant 110 work, power control module 150 keeps Storage Unit 130 normalities are charged; When Storage Unit 130 energy storage quotas, power control module 150 control diesel powerplants 110 turn-off; When Storage Unit 130 energy storage were lower than the setting threshold values, power control module 150 stoped Working mechanisms 1 action, and the wait process of charging is carried out; When Storage Unit 130 energy storage were lower than setting value, power control module 150 control diesel powerplants 110 restarted generating in order to charging.And power control module 150 also is responsible for carrying out communication with the PLC controller of shipping work mechanism 1, obtain data such as acting amount, speed, power drain, and, the PLC controller is proposed the speed control requirement of Working mechanism 1 according to the energy storage situation of Storage Unit 130.And diesel powerplant 110 also has governor, and power control module 150 is connected with governor, by the control to governor, dynamically adjusts the rotating speed of diesel engine 111, thereby controls the power of diesel powerplant 110 in real time.In addition, the mouth of AC/DC conv 120 also passes through change-over swith 160 direct cross-over connections to the DC master row of the Working mechanism 1 of boats and ships, when Storage Unit 130 operation irregularities, change-over swith 160 closures, to directly power through the direct current (DC) of AC/DC conversion, and corresponding Working mechanism 1 be carried out Control for Speed Limitation by the PLC controller to the Working mechanism 1 of boats and ships.
See also shown in Figure 2ly, the method for supplying power to of shipping work of the present invention may further comprise the steps: a, adopt the corresponding diesel powerplant 110 of operation boats and ships to carry out the miniwatt generating; B, convert the alternating current that generates among the step a to direct current (DC) by AC/DC; C, will the direct current (DC) among the step b charge in the input Storage Unit 130; D, by Storage Unit 130 output DCs, and after the DC/DC conversion, provide electric energy to the operation of the corresponding Working mechanism 1 of boats and ships.In described step c, detect by the working parameter in 150 pairs of Storage Units of power control module 130, and charge in the input of the direct current (DC) among the controlled step b Storage Unit 130.This method of supplying power to also comprises step e, is in gravity acting, deceleration or glancing impact at the Working mechanism 1 of boats and ships, reclaims by gravity acting, regenerative electric energy that deceleration or braking produced by Storage Unit 130; If regenerative electric energy when Storage Unit 130 spill-overs, carries out work by the brake unit and the braking resistor of control low capacity.
Below to the concrete casehistory of above-mentioned steps: but the non-constant alternating current of 220-440V, 25-50HZ sent by the diesel engine 111 drive electrical generators 112 of automatic speed regulation, after 120 rectifications of AC/DC conv, the direct current (DC) that obtains charges through 150 pairs of Storage Units 130 of power control module, and (power control module 150 is according to Storage Unit 130 change of voltage, according to the relation of I=P/V, the automatic compensation charging current also is limited in electric current in the permissible value).The electric-control system operating order of the voltage signal of Storage Unit 130 and shipping work mechanism 1 is sent to the governor input end of diesel engine 111, dynamically control the rotating speed of diesel engine 111 by governor, realize press the purpose of the electric energy generated of energy requirement adjusting diesel powerplant 110.Because the voltage of Storage Unit 130 can not suddenly change, so diesel engine 111 rotating speeds can not suddenly change yet, and this can be under the good working environment driving engine all the time, and is of great advantage 111 service lifes to prolonging diesel engine.And Working mechanism 1 required electric energy provides by Storage Unit 130, its process is: the electric energy (voltage 300-600V) that Storage Unit 130 stores is converted to the 600V stable DC by the DC/DC conv and gives the power supply DC master row, power to Working mechanism 1 by DC master row again, when operation mechanism 1 is in gravity acting, deceleration or glancing impact, the regenerative electric energy of generation is all reclaimed by Storage Unit 130.
When Storage Unit 130 et out of orders and other operation irregularity, can start the emergency pattern, promptly,, at this moment Working mechanism 1 highest running speed is limited in 50% of command speed by software control with AC/DC conv 120 and DC master row cross-over connection by change-over swith 160 closures.
In the present invention, the electric power signal of Storage Unit 130 and working load signal can be introduced the governor input end of diesel engine 111, with the rotating speed of regulating diesel engine 111 and the automatic start-stop of finishing diesel engine 111, thereby also can solve long-time underload and the unloaded fuel oil waste that causes.
In the present invention, power control module 150 is the speed control of management diesel engine 111, the automatic start-stop control of diesel engine 111; Also manage the charging control of Storage Unit 130, concrete controlled step is as follows:
1, the diesel engine 111 of automatic speed regulation drives electrical generator 112 and sends the non-constant alternating current of 220～440V, 25～0HZ, delivers to diode rectification after smoothing reactor filtering, the direct current (DC) horsepower input control module 150 that obtains;
2, power control module 150 is transformed into constant 600V direct current (DC) to 300～600V direct current (DC) of input, outputs to Storage Unit 130, charges.
3, when Storage Unit 130 was initial condition, energy storage was few, and internal resistance is very low, and power control module 150 carries out the current limliting management when precharge.
4, when Storage Unit 130 energy storage are lower than the setting threshold values, power control module 150 does not allow Working mechanism 1 action, and the wait process of charging is carried out.
5, when diesel powerplant 110 work, power control module 150 keeps Storage Unit 130 normalities are charged.
6, when Storage Unit 130 energy storage quotas, power control module 150 control diesel powerplants 110 turn-off.
7, when Storage Unit 130 energy storage are lower than setting value, power control module 150 control diesel powerplants 110 restart.
8, according to the size of Storage Unit 130 energy storage capacities, power control module 150 is dynamically adjusted the rotating speed of diesel-engine generator 112.
9, power control module 150 also detects and controls electric current, temperature, junior units in the Storage Unit 130 and parameter such as all presses.
10, power control module 150 also carries out communication with the PLC controller of Working mechanism 1, obtains data such as acting amount, speed, power drain, and according to the energy storage situation of Storage Unit 130 PLC is worked as the 1 running velocity requirement of proposition Working mechanism.
In the present invention, DC/DC changer 140 is transformed into stable 600V direct current (DC) to 300～600V direct current (DC) of Storage Unit 130 outputs and offers shipping work mechanism 1 need for electricity; Working mechanism 1 is at gravity acting, deceleration or glancing impact, and the regenerative electric energy that is produced is all reclaimed by DC/DC changer 140 input Storage Units 130; Regenerative electric energy only when Storage Unit 130 spill-overs, is just controlled the brake unit and the braking resistor work of a low capacity.
Common in the market operation boats and ships all can adopt the technology of the present invention transformation, by evidence, adopt electric power system of the present invention and method, can make more than the fuel consumption decline 40%-60% of shipping work, not only reduce energy dissipation, but also reduced exhaust emission, for the user brings objective economic benefit and social benefit.
In sum, the electric power system of shipping work of the present invention and method have the oil consumption that reduces shipping work significantly, improve the degree of utilization of fuel oil, reach advantages of saving energy and reducing emission.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of above embodiment.
Claims (10)
1. the electric power system of a shipping work is characterized in that, comprising:
As the diesel powerplant of electric energy supply source, carry out the miniwatt generating;
The AC/DC conv, input end is connected with diesel powerplant, and the electric energy that diesel powerplant is generated carries out the rectification processing;
As the Storage Unit of power supply source, input end is connected with the mouth of AC/DC conv, and the reception electric energy also charges;
The DC/DC changer, input end is connected with the mouth of Storage Unit, and the electric energy that Storage Unit is exported converts the constant high pressure electric current to; Mouth is connected with the Working mechanism of boats and ships, and the operation of Working mechanism is powered.
2. the electric power system of shipping work according to claim 1 is characterized in that:
Described electric power system also comprises power control module, is connected between AC/DC conv and the Storage Unit, the working parameter in the Storage Unit is detected, and the charging of control Storage Unit.
3. the electric power system of shipping work according to claim 2 is characterized in that:
The direct current (DC) of the fluctuation that described power control module is also exported the AC/DC conv is transformed into constant DC, for the Storage Unit charging, and
To be in energy storage few when Storage Unit, and during the very low initial condition of internal resistance, power control module carries out the current limliting management to the precharge of Storage Unit;
When diesel powerplant was worked, power control module kept the Storage Unit normality is charged;
When Storage Unit energy storage quota, power control module control diesel powerplant turn-offs;
When the Storage Unit energy storage was lower than the setting threshold values, power control module stoped the Working mechanism action, and the wait process of charging is carried out;
When the Storage Unit energy storage was lower than setting value, power control module control diesel powerplant restarted generating in order to charging.
4. the electric power system of shipping work according to claim 2 is characterized in that:
Described diesel powerplant has governor, and described power control module also is connected with governor, by the control to governor, dynamically adjusts the rotating speed of diesel powerplant.
5. according to the electric power system of each described shipping work in the claim 1 to 4, be characterised in that:
The mouth of described AC/DC conv also passes through change-over swith 160 direct cross-over connections to the Working mechanism of boats and ships.
6. the method for supplying power to of a shipping work is characterized in that, comprises the steps:
A, the corresponding diesel powerplant of employing operation boats and ships carry out the miniwatt generating;
B, convert the alternating current that generates among the step a to direct current (DC) by AC/DC;
C, will the direct current (DC) among the step b charge in the input Storage Unit;
D, by the Storage Unit output DC, and after the DC/DC conversion, provide electric energy to the operation of the corresponding Working mechanism of boats and ships.
7. the method for supplying power to of shipping work according to claim 6 is characterized in that,
In described step c, by power control module the working parameter in the Storage Unit is detected, and charge in the input of the direct current (DC) among the controlled step b Storage Unit.
8. the method for supplying power to of shipping work according to claim 7 is characterized in that,
Described charging controlled step specifically comprises:
C1, the direct current (DC) that fluctuates among the step b is transformed into constant DC, for the Storage Unit charging;
C2, to be in energy storage few when Storage Unit, during the very low initial condition of internal resistance, the current limliting management carried out in the precharge of Storage Unit;
C3, when diesel powerplant is worked, keep the Storage Unit normality is charged;
C4, when Storage Unit energy storage quota, the control diesel powerplant turn-offs;
C5, when the Storage Unit energy storage is lower than when setting threshold values, stop the Working mechanism action, wait for that process of charging carries out;
C6, when the Storage Unit energy storage is lower than setting value, control diesel powerplant restart generating in order to the charging;
C7, according to the size of Storage Unit energy storage capacity, the control governor is dynamically adjusted the rotating speed of diesel powerplant;
C8, carry out communication, obtain data such as acting amount, speed, power drain, and, the PLC controller is proposed the speed control requirement of Working mechanism according to the energy storage situation of Storage Unit with the PLC controller of shipping work mechanism.
9. the method for supplying power to of shipping work according to claim 8 is characterized in that,
In described step c8:
If the Storage Unit operation irregularity will directly be powered to the Working mechanism of boats and ships through the direct current (DC) of AC/DC conversion by change-over swith, and corresponding Working mechanism will be carried out Control for Speed Limitation.
10. according to the method for supplying power to of each described shipping work in the claim 6 to 9, it is characterized in that,
This method of supplying power to also comprises step e:
Working mechanism at boats and ships is in gravity acting, deceleration or glancing impact, reclaims by gravity acting, regenerative electric energy that deceleration or braking produced by Storage Unit;
If regenerative electric energy when the Storage Unit spill-over, carries out work by the brake unit and the braking resistor of control low capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100531141A CN101920780A (en) | 2009-06-16 | 2009-06-16 | Power supply system and method of shipping work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100531141A CN101920780A (en) | 2009-06-16 | 2009-06-16 | Power supply system and method of shipping work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101920780A true CN101920780A (en) | 2010-12-22 |
Family
ID=43336064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100531141A Pending CN101920780A (en) | 2009-06-16 | 2009-06-16 | Power supply system and method of shipping work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101920780A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606294A (en) * | 2012-02-06 | 2012-07-25 | 哈尔滨城林科技有限公司 | Low-noise oil-electricity hybrid power source and implementation method thereof |
| CN105071482A (en) * | 2015-08-25 | 2015-11-18 | 三峡大学 | Distributed power supply system capable of autonomous endurance for light beacon boat |
| CN105102318B (en) * | 2012-11-12 | 2017-05-03 | 托奇多有限责任公司 | Boat with electric drive |
| JP2018062326A (en) * | 2016-10-15 | 2018-04-19 | 高砂建設株式会社 | Spud mooring facility |
| CN110312855A (en) * | 2017-02-21 | 2019-10-08 | 发电机微动力公司 | The control of fuel stream for the power generation based on DC junctor level |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227238A (en) * | 1997-02-13 | 1998-08-25 | Nissan Motor Co Ltd | Electric energy supply device for vehicle |
| JP2004260908A (en) * | 2003-02-25 | 2004-09-16 | Denso Corp | Method for managing electric system for vehicle |
| CN2932827Y (en) * | 2006-06-30 | 2007-08-08 | 天津港集装箱码头有限公司 | RTGC double-speed energy-saving generating system device |
| CN200944575Y (en) * | 2006-09-01 | 2007-09-05 | 罗中柱 | DC busbar supplying crane power system |
| US20080258682A1 (en) * | 2004-11-11 | 2008-10-23 | Beijing Dianba Technology Co., Ltd. | Electric Public Transit System |
-
2009
- 2009-06-16 CN CN2009100531141A patent/CN101920780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227238A (en) * | 1997-02-13 | 1998-08-25 | Nissan Motor Co Ltd | Electric energy supply device for vehicle |
| JP2004260908A (en) * | 2003-02-25 | 2004-09-16 | Denso Corp | Method for managing electric system for vehicle |
| US20080258682A1 (en) * | 2004-11-11 | 2008-10-23 | Beijing Dianba Technology Co., Ltd. | Electric Public Transit System |
| CN2932827Y (en) * | 2006-06-30 | 2007-08-08 | 天津港集装箱码头有限公司 | RTGC double-speed energy-saving generating system device |
| CN200944575Y (en) * | 2006-09-01 | 2007-09-05 | 罗中柱 | DC busbar supplying crane power system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606294A (en) * | 2012-02-06 | 2012-07-25 | 哈尔滨城林科技有限公司 | Low-noise oil-electricity hybrid power source and implementation method thereof |
| CN105102318B (en) * | 2012-11-12 | 2017-05-03 | 托奇多有限责任公司 | Boat with electric drive |
| US9815541B2 (en) | 2012-11-12 | 2017-11-14 | Torqeedo Gmbh | Boat with electric drive |
| US10661877B2 (en) | 2012-11-12 | 2020-05-26 | Torqeedo Gmbh | Electric drive for a vehicle |
| CN105071482A (en) * | 2015-08-25 | 2015-11-18 | 三峡大学 | Distributed power supply system capable of autonomous endurance for light beacon boat |
| JP2018062326A (en) * | 2016-10-15 | 2018-04-19 | 高砂建設株式会社 | Spud mooring facility |
| CN110312855A (en) * | 2017-02-21 | 2019-10-08 | 发电机微动力公司 | The control of fuel stream for the power generation based on DC junctor level |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103332284B (en) | A kind of energy management of hybrid ship electric power propelling system and control method | |
| CN104859828B (en) | Diesel-electric hybrid power ship propulsion system and energy management method of diesel-electric hybrid power ship propulsion system | |
| CN200944575Y (en) | DC busbar supplying crane power system | |
| CN204928358U (en) | Diesel generator economizer system of intermittent type nature operation continuation power supply | |
| CN104444806B (en) | Dual-power system for recycling crane potential energy | |
| CN1945963A (en) | DC bus powered crane power system | |
| CN201390609Y (en) | Novel energy-saving and environmental protection tire type crane | |
| CN101920780A (en) | Power supply system and method of shipping work | |
| CN101920660A (en) | Power supply method and system for mobile type engineering machine | |
| CN1240607C (en) | Tire type gantry container crane using super capacitor | |
| CN101348215A (en) | Velocity modulation fuel saving diesel-electric set electric supply tyre type gantry container crane | |
| CN201647835U (en) | Hybrid power RTG electrical system | |
| CN116335625B (en) | Petroleum drilling machine hybrid power system based on energy storage system and optimal control method thereof | |
| CN101717044A (en) | Hybrid power tyre crane energy-saving system | |
| CN109367750A (en) | Shaft generator control system and ship hybrid power system | |
| CN105098811A (en) | Hybrid energy source energy buffer balanced micro-grid for drilling machine | |
| CN101604865B (en) | Wind power generation system for low-voltage DC power supply | |
| CN101521470B (en) | Power supply method and power supply system for rubber-tyred container gantry crane | |
| CN210554230U (en) | Hybrid power supply system for engineering machinery | |
| US20170275140A1 (en) | Three-power hybrid energy saving system of a rubber tyred gantry crane | |
| CN102229410B (en) | Hybrid power apparatus of slewing mechanism of tyre jib crane | |
| WO2024037509A1 (en) | Power system of rotary drilling rig, control method for rotary drilling rig, and rotary drilling rig | |
| CN205004755U (en) | Energy-saving device for recycling and reusing common alternating current bus | |
| CN101924478A (en) | Power supply method of mobile type hoisting equipment and system thereof | |
| CN202309602U (en) | Diesel generator energy-saving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101222 |