CN201817202U - Diesel generator set hybrid power energy-saving system based on flywheel for energy storage - Google Patents

Diesel generator set hybrid power energy-saving system based on flywheel for energy storage Download PDF

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Publication number
CN201817202U
CN201817202U CN2010202137307U CN201020213730U CN201817202U CN 201817202 U CN201817202 U CN 201817202U CN 2010202137307 U CN2010202137307 U CN 2010202137307U CN 201020213730 U CN201020213730 U CN 201020213730U CN 201817202 U CN201817202 U CN 201817202U
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China
Prior art keywords
energy
flywheel
energy storage
generator set
saving system
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Expired - Fee Related
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CN2010202137307U
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Chinese (zh)
Inventor
郑坚炼
余咏辉
彭润钦
邹来
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SHENZHEN POWERTEC GENERTATOR SYSTEM CO Ltd
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SHENZHEN POWERTEC GENERTATOR SYSTEM CO Ltd
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Priority to CN2010202137307U priority Critical patent/CN201817202U/en
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Publication of CN201817202U publication Critical patent/CN201817202U/en
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Abstract

The utility model discloses a diesel generator set hybrid power energy-saving system based on a flywheel for energy storage, which comprises a diesel generator set and a gantry crane power device. A rectifying device and a frequency converter are connected in series between the diesel generator set and the gantry crane power device, an energy storage flywheel with an energy storage function is arranged in parallel between the rectifying device and the frequency converter, and the energy storage flywheel is capable of recycling regenerated brake energy generated by a lifting mechanism of the gantry crane power device during descending, and providing auxiliary energy for the gantry crane power device while starting or lifting large load. The diesel generator set hybrid power energy-saving system is capable of rapidly absorbing the regenerated energy to be used immediately when in need, and has the advantages of high energy density, high efficiency, low energy loss and rapid charging and discharging.

Description

Diesel powerplant mix-driving and energy-saving system based on flywheel energy storage
Technical field
The utility model relates to a kind of energy conserving system, especially relate to a kind of can the fast Absorption regenerated energy, and the diesel powerplant mix-driving and energy-saving system based on flywheel energy storage of place in operation immediately when needed.
Background technology
Rubbertyred container gantry crane (RTG is called for short gauntry crane) is main force's equipment in each big freight container specialized wharf stockyard, the world, advantages such as the cost of investment that it has the harbour basis is low, maneuverability can be cut to operation, be convenient to purchase by stages and in groups are extensive use of at vast container operation harbour.Traditional gauntry crane provides whole power by diesel powerplant, is produced the driven by power walking, is hoisted and mechanism such as dolly by diesel powerplant.Can produce regenerated energy in gauntry crane lifting mechanism decline process, cart and the trolley body moderating process, this part energy occupies the whole service on-cycle more than 30%.Because regenerated energy can't feedback, the way of common gauntry crane is directly to consume in vain with heat-producing form by energy consumption resistance.And under the situation of heavy duty lifting, phenomenons such as gauntry crane takes place in the moment that hoists that engine speed rises rapidly in order to avoid, moment of torsion deficiency and driving engine over-emitting black exhaust, the power apolegamy of gauntry crane diesel powerplant is about required at ordinary times 2 times usually, all reaches more than the normal power 400KW usually.Problems such as the energy conversion efficiency of these generator seies is low, energy consumption big, environmental-protecting performance is poor, operating cost height have directly restricted the healthy sustainable development of enterprise.
If the regenerated energy that gauntry crane produces can be reclaimed, when lifting mechanism heavy duty lifting, carry out feedback with the form of auxiliary energy, when improving the generator set energy conversion efficiency, the generating capacity of diesel powerplant be can also reduce like this, discharging and energy resource consumption reduced.
Summary of the invention
At problem set forth above, the utility model purpose be to provide a kind of can the fast Absorption regenerated energy, and the diesel powerplant mix-driving and energy-saving system based on flywheel energy storage of place in operation immediately when needed.
The utility model is realized by following technical measures, a kind of diesel powerplant mix-driving and energy-saving system based on flywheel energy storage, comprise diesel powerplant and gauntry crane engine installation, be serially connected with rectifying device and frequency converter between described diesel powerplant and the gauntry crane engine installation, the three plase alternating current that this rectifying device can send diesel powerplant is converted to direct supply, directly supply with the frequency converter that drags each mechanism's operation by DC supply, frequency converter is converted to direct supply the source of AC of frequency adjustable, be used for driving the lifting mechanism of gauntry crane engine installation, big mechanism of car and trolley body, be parallel with accumulated energy flywheel between described rectifying device and the frequency converter with energy-storage function, this accumulated energy flywheel can reclaim the regenerating braking energy that the lifting mechanism of gauntry crane engine installation produces in the decline process, provide auxiliary energy for the gauntry crane engine installation starting or promote under the situation of heavy load.
Wherein accumulated energy flywheel is connected with central controller, and this central controller connects the generator set control setup of diesel powerplant and the gauntry crane control setup of gauntry crane engine installation.Central controller is SCM Based intelligent industrial control system, central controller can read the status information of generator set control setup and gauntry crane control setup and accumulated energy flywheel device, and according to the energy requirement of gauntry crane engine installation, the energy output of optimization process accumulated energy flywheel device and diesel powerplant distributes, and guarantees the normal operation of gauntry crane engine installation.It can also be according to the actual condition of service of gauntry crane engine installation, and the energy storage and the energy storage time of control accumulated energy flywheel device make total system reach best running condition.
The preferred high capacity magnetically levitated flywheel of above-mentioned accumulated energy flywheel.
Between rectifying device and frequency converter, also can in parallel have the power consumption resistance that consumes excess energy.
Accumulated energy flywheel of the present utility model can the fast Absorption regenerated energy, and place in operation immediately when needed.Accumulated energy flywheel has the characteristics of high-energy-density, high efficiency, low-yield loss.The utility model also has the characteristic of big electric current, fast charging and discharging.Its long service life, environmentally safe.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
The specific embodiment
Below in conjunction with example and contrast accompanying drawing the utility model is described in further detail.
A kind of diesel powerplant mix-driving and energy-saving system based on flywheel energy storage, comprise diesel powerplant 1, high capacity magnetically levitated flywheel 3, central controller 8 and gauntry crane engine installation 6, be serially connected with rectifying device 2 and frequency converter 5 between described diesel powerplant 1 and the gauntry crane engine installation 6, this rectifying device 2 can be converted to direct supply with the three plase alternating current that diesel powerplant 1 sends, directly supply with the frequency converter 5 that drags each mechanism's operation by DC supply, this frequency converter 5 is converted to direct supply the source of AC of frequency adjustable, be used for driving the lifting mechanism of gauntry crane engine installation 6, big mechanism of car and trolley body, be parallel with high capacity magnetically levitated flywheel 3 between described rectifying device 2 and the frequency converter 5 with energy-storage function, this high capacity magnetically levitated flywheel 3 can reclaim the regenerating braking energy that the lifting mechanism of gauntry crane engine installation 6 produces in the decline process, under the situation of startup or lifting heavy load,, between rectifying device 2 and frequency converter 5, also be parallel with power consumption resistance 4 with consumption excess energy for gauntry crane engine installation 6 provides auxiliary energy.Wherein high capacity magnetically levitated flywheel 3 is connected with central controller 8, and this central controller 8 connects the generator set control setup 7 of diesel powerplant 1 and the gauntry crane control setup 9 of gauntry crane engine installation 6.Central controller 8 is SCM Based intelligent industrial control system, central controller 8 can read the status information of generator set control setup 7 and gauntry crane control setup 9 and high capacity magnetically levitated flywheel 3, and according to the energy requirement of gauntry crane engine installation 6, optimization process high capacity magnetically levitated flywheel 3 distributes with the energy output of diesel powerplant 1, guarantees the normal operation of gauntry crane engine installation 6.It can also be according to the actual condition of service of gauntry crane engine installation 6, the energy storage state and the time of control high capacity magnetically levitated flywheel 3, makes total system reach best running condition.
Energy stores in the mode of rotation function in the high capacity magnetically levitated flywheel 3 that system uses, and the storage of energy and the rotation that discharges all the high moment of inertia rotor by electrical motor and electrical generator realize.High capacity magnetically levitated flywheel 3 monomer capacity are 120KW, can be full of electric energy in 15s, and the ceiling capacity of its storage is 0.54kWH, and can satisfy fully loaded output time is 16s.
The diesel powerplant 1 that this system adopts is normal power 250KW, and the maximum power that can export is 275KW, and it cooperates high capacity magnetically levitated flywheel 3 to use the various energy requirements that can satisfy gauntry crane engine installation 6.
System works principle: when the lifting mechanism of gauntry crane engine installation 6 descends, the electric energy that electrical motor sent feeds back on the dc bus between rectifying device 2 and the frequency converter 5, bus voltage is raise, when voltage reaches the threshold values of high capacity magnetically levitated flywheel 3 settings, high capacity magnetically levitated flywheel 3 energy storage of charging, when detecting closed-centre system and be full of, central controller 8 control energy consumption resistances 4 consume excess energies.When gauntry crane engine installation 6 started or promotes heavy load, DC bus-bar voltage reduced, and when DC bus-bar voltage dropped to the threshold values of setting, high capacity magnetically levitated flywheel 3 cooperated diesel powerplant 1 energy output together.This moment, both energy output was coordinated in central controller 8 controls, made the energy of high capacity magnetically levitated flywheel 3 storages reach best service efficiency.Impact power demand when the lifting mechanism lift heavy that can remedy gauntry crane engine installation 6 like this carries uphill process and each mechanism flat-out acceleration, make driving engine can groundwork at non-overload, improved the in-use performance of total system.
More than the utility model is set forth based on the diesel powerplant mix-driving and energy-saving system and the mode of operation of flywheel energy storage; be used for helping to understand the utility model; but embodiment of the present utility model is not restricted to the described embodiments; anyly do not deviate from the change done under the utility model principle, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.

Claims (4)

1. diesel powerplant mix-driving and energy-saving system based on flywheel energy storage, comprise diesel powerplant and gauntry crane engine installation, it is characterized in that: be serially connected with rectifying device and frequency converter between described diesel powerplant and the gauntry crane engine installation, be parallel with accumulated energy flywheel between described rectifying device and the frequency converter with energy-storage function.
2. the diesel powerplant mix-driving and energy-saving system based on flywheel energy storage according to claim 1, it is characterized in that: described accumulated energy flywheel is connected with central controller, and this central controller connects the generator set control setup of diesel powerplant and the gauntry crane control setup of gauntry crane engine installation.
3. the diesel powerplant mix-driving and energy-saving system based on flywheel energy storage according to claim 1 and 2, it is characterized in that: described accumulated energy flywheel is the high capacity magnetically levitated flywheel.
4. the diesel powerplant mix-driving and energy-saving system based on flywheel energy storage according to claim 1 and 2 is characterized in that: be parallel with the power consumption resistance with consumption excess energy between described rectifying device and the frequency converter.
CN2010202137307U 2010-05-31 2010-05-31 Diesel generator set hybrid power energy-saving system based on flywheel for energy storage Expired - Fee Related CN201817202U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963267A (en) * 2012-12-03 2013-03-13 山推工程机械股份有限公司 Method for recovering negative energy in hybrid power bulldozer and vehicle control unit
CN106505599A (en) * 2016-12-22 2017-03-15 国网山东省电力公司东明县供电公司 Based on electric discharge voltage control system and method in the distribution of flywheel energy storage unit
CN106608594A (en) * 2015-10-27 2017-05-03 广东保达动力技术有限公司 Extended-range energy-saving hybrid power system applied to cranes
CN109687395A (en) * 2018-11-27 2019-04-26 河海大学 A kind of magnetic suspension motor power-off protection apparatus and method based on electric energy feedback
CN111049187A (en) * 2019-12-31 2020-04-21 江苏泓慧飞轮技术有限公司 Port shore bridge micro-grid control system and method based on energy storage flywheel
CN112010178A (en) * 2020-08-31 2020-12-01 湖南三一中型起重机械有限公司 Power take-off control system, method and device, electronic equipment and storage medium

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963267A (en) * 2012-12-03 2013-03-13 山推工程机械股份有限公司 Method for recovering negative energy in hybrid power bulldozer and vehicle control unit
CN102963267B (en) * 2012-12-03 2015-09-09 山推工程机械股份有限公司 Method and the entire car controller of negative usefulness is reclaimed in a kind of hybrid power bulldozer
CN106608594A (en) * 2015-10-27 2017-05-03 广东保达动力技术有限公司 Extended-range energy-saving hybrid power system applied to cranes
CN106505599A (en) * 2016-12-22 2017-03-15 国网山东省电力公司东明县供电公司 Based on electric discharge voltage control system and method in the distribution of flywheel energy storage unit
CN106505599B (en) * 2016-12-22 2019-03-12 国网山东省电力公司东明县供电公司 Electric discharge voltage control system and method in distribution based on flywheel energy storage unit
CN109687395A (en) * 2018-11-27 2019-04-26 河海大学 A kind of magnetic suspension motor power-off protection apparatus and method based on electric energy feedback
CN111049187A (en) * 2019-12-31 2020-04-21 江苏泓慧飞轮技术有限公司 Port shore bridge micro-grid control system and method based on energy storage flywheel
CN112010178A (en) * 2020-08-31 2020-12-01 湖南三一中型起重机械有限公司 Power take-off control system, method and device, electronic equipment and storage medium

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Granted publication date: 20110504

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