CN101293621A - Tire arm derrick crane with auxiliary power source for recovering potential energy - Google Patents
Tire arm derrick crane with auxiliary power source for recovering potential energy Download PDFInfo
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- CN101293621A CN101293621A CNA2008100535400A CN200810053540A CN101293621A CN 101293621 A CN101293621 A CN 101293621A CN A2008100535400 A CNA2008100535400 A CN A2008100535400A CN 200810053540 A CN200810053540 A CN 200810053540A CN 101293621 A CN101293621 A CN 101293621A
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Abstract
The invention relates to a tyre arm frame-typed crane with a recovery potential auxiliary power source, comprising the mechanisms of the crane such as a lifting mechanism, a rotation mechanism, a luffing mechanism, a walking mechanism and a power mechanism; a super capacitor is connected in parallel on a DC bus of the power mechanism; the tyre arm frame-typed crane is characterized in that the super capacitor, a bidirectional DC/DC converter, a DSP controller and an energy consumption circuit form recovery potential auxiliary power source; the super capacitor is connected in parallel on the stabilizer capacitor of the DC bus by the bidirectional DC/DC converter; the DSP controller is connected with the bidirectional DC/DC converter and the energy consumption circuit; the energy consumption circuit is connected in parallel with the DC bus. The tyre arm frame-typed crane has the beneficial effects that a dual-power source which takes an internal combustion-generator set and the super capacitor as powers uses the recovery potential auxiliary power source formed by the super capacitor to realize that the super capacitor and the generator set supply the power for the system together, effectively improves the stability of the power device of the tyre arm frame-typed crane, saves the energy, has no noise, reduces the assembly capacity of the whole machine and reduces the impact to the crane power system.
Description
Technical field
The invention belongs to tire arm derrick crane, relate in particular to a kind of tire arm derrick crane that reclaims the potential energy auxiliary power source that has.
Background technology
Tire arm derrick crane is port and pier and the most frequently used loading-unload machine of various building engineering, can grow distance travel, flexible conversion operation place, and manoevreability is good.At present, a kind of power driven of tire arm derrick crane is to adopt the internal-combustion engine drives generator set driving motor that generates electricity again to carry out weight and promote operation.Its operating feature be periodically, batch operation, frequently several tons to tens tons goods is risen and descends, starting and braking.Owing under the super large load variations, require to finish in short several seconds starting and braking, need very big power, bring following unfavorable factor then for the conventional tire arm derrick crane:
1. require the generating capacity of combustion engine and generator powered very big.In order to adapt to the high-performance in short-term operating needs of tire arm derrick crane, must be equipped with the high-performance electrical generator of high capacity in the tire arm derrick crane engine installation of combustion engine power supply, heavyduty tire arm derrick crane complete machine capacity greatly, and when starting, the necessary open the throttle wide of combustion engine, fast a large amount of fuel feeding seriously cause diesel engine noise to increase thus, and fuel combustion is incomplete, and discharging black smoke, cause environmental pollution, increase oil consumption simultaneously, strengthened operation cost;
2. regenerated energy is not rationally utilized in the tire arm derrick crane working process.The decline potential energy of tire arm derrick crane can only consume by the mode of resistance braking, has not only wasted energy but also increases the thermal pollution of complete machine;
3. impact is very big, and the operation of tire arm derrick crane complete machine is steady inadequately.Because high-performance Fraquent start in short-term is very big to the electric system impact of unit load and complete machine, causes electric equipment to damage easily.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of tire arm derrick crane that reclaims the potential energy auxiliary power source that has is provided, potential energy when utilizing super capacitor reclaiming crane lifting mechanism to descend, as supplying with hoisting crane institute energy requirement, to the impact of hoisting crane electric system, reduced the complete machine generating capacity greatly in the time of can reducing the energy feedback.
The present invention for achieving the above object, be achieved through the following technical solutions: a kind of tire arm derrick crane that reclaims the potential energy auxiliary power source that has, lifting mechanism, swing type mechanism, luffing mechanism and the traveling gear and the actuating unit that comprise hoisting crane, described actuating unit is provided for driving lifting mechanism, swing type mechanism, luffing mechanism and traveling gear operation power by the generating of internal combustion engine generator group; Super capacitor is connected in parallel on the dc bus, charges, discharge, provide power for each operating mechanism as another propulsion source in variation according to DC bus-bar voltage.When each operating mechanism was in braking mode, the feedback electric energy was given super capacitor, and the energy that super capacitor constantly obtains feeding back charges.When operating mechanism needs power, super capacitor constantly discharges electric energy, along with super capacitor constantly discharges, its terminal voltage descends, dc bus voltage and then descends, when voltage is lower than the mains rectified voltage of diesel powerplant, diesel powerplant begins to participate in power supply, it is characterized in that: described super capacitor and two-way DC/DC changer, dsp controller, the energy consumption circuit is formed recovery potential energy auxiliary power source, super capacitor is parallel on the electric capacity of voltage regulation of dc bus through two-way DC/DC changer, dsp controller is connected with two-way DC/DC changer and energy consumption circuit, and the energy consumption circuit is in parallel with dc bus.
Described energy consumption circuit is made up of dynamic buffer and energy consumption resistance, and described dynamic buffer is connected with dsp controller, and dynamic buffer is in parallel with dc bus by energy consumption resistance.
Described two-way DC/DC changer is made of the parallel connection of three two-way DC/DC changers of miniwatt.
Beneficial effect of the present invention: adopted utilize that super capacitor forms recovery potential energy auxiliary power source, realize that super capacitor and generator set power for system jointly, effectively improve tire arm derrick crane engine installation stationarity.Have following advantage simultaneously:
1. the utilization super capacitor regenerated energy that reclaims the lifting mechanism feedback is as the hoisting crane time institute's energy requirement of working, saving in energy;
2. use super capacitor as auxiliary power source system to be powered, noiselessness can also reduce the complete machine generating capacity;
3. the recovery of regenerated energy reduces the impact to the hoisting crane electric system.
Description of drawings
Fig. 1 is the circuit catenation principle figure that the present invention adopts alternating current generator;
Fig. 2 is the circuit catenation principle figure that the present invention adopts dynamo generator;
Fig. 3 is a system of the present invention control flow chart.
The specific embodiment
Below in conjunction with preferred embodiment, to details are as follows according to the specific embodiment provided by the invention:
A kind of tire arm derrick crane that reclaims the potential energy auxiliary power source that has, lifting mechanism, swing type mechanism, luffing mechanism and the traveling gear and the actuating unit that comprise hoisting crane, described actuating unit is provided for driving lifting mechanism, swing type mechanism, luffing mechanism and traveling gear operation power by the generating of internal combustion engine generator group; Super capacitor is connected in parallel on the dc bus, charges, discharge, provide power for each operating mechanism as another propulsion source in variation according to DC bus-bar voltage.When each operating mechanism was in braking mode, the feedback electric energy was given super capacitor, and the energy that super capacitor constantly obtains feeding back charges.When operating mechanism needed power, super capacitor constantly discharged electric energy, along with super capacitor constantly discharges, its terminal voltage descends, dc bus voltage and then descends, and when voltage was lower than the mains rectified voltage of diesel powerplant, diesel powerplant began to participate in power supply.Described super capacitor and two-way DC/DC changer, dsp controller, energy consumption circuit are formed recovery potential energy auxiliary power source, super capacitor is parallel on the electric capacity of voltage regulation of dc bus through two-way DC/DC changer, dsp controller is connected with two-way DC/DC changer and energy consumption circuit, and the energy consumption circuit is in parallel with dc bus.Described energy consumption circuit is made up of dynamic buffer and energy consumption resistance, and described dynamic buffer is connected with dsp controller and is in parallel with dc bus by energy consumption resistance.
Principle of work: the internal combustion engine generator group begins to a certain degree to stop charging to the super capacitor charging when super capacitor is charged to from No Load Start, enters generator set and super capacitor co-ordination stage.When the electrical motor that hoists was in the energy regenerating condition, energy was charged to super capacitor through two-way DC/DC conv by dc bus.Detect DC bus-bar voltage and super capacitor voltage this moment in real time.Surpass to set peak and DC bus-bar voltage when continuing to rise when super capacitor voltage, think that capacitive energy has been full of, unnecessary potential energy changes and is consumed by dynamic buffer (energy consumption circuit).When each mechanism is in the expenditure of energy state, give each mechanism's work drive motor power supply through two-way DC/DC conv by super capacitor.Generator set and dc bus junction have the power rectifier tube to guarantee that the super capacitor discharge current can't flow back to generator set and all supply with operating mechanism.Detect DC bus-bar voltage and super capacitor voltage this moment in real time.When super capacitor voltage is lower than the minimum of setting and DC bus-bar voltage when continuing to descend, think that capacitive energy given out light, operating mechanism changes and is worked on by electric set electric supply.The situation of change of dsp controller monitoring DC bus-bar voltage, when lifting mechanism motor regeneration feedback electric energy causes that DC bus-bar voltage rises, super capacitor enters charge condition, continuous charging along with super capacitor, its terminal voltage rises, and super capacitor has absorbed the regenerated energy of lifting mechanism feedback.Need energy supply when action when operating mechanism is in, operating mechanism's machine operation causes DC bus-bar voltage to descend, the super capacitor discharge, and along with super capacitor constantly discharges, its terminal voltage descends, and the electric energy that super capacitor stores progressively discharges.
The recovery potential energy auxiliary power source that the super capacitor composition is set can reduce the power configuration of combustion engine, allow it always work near the specified efficient region, fuel combustion is abundant, not only reduce exhaust emission but also reduce total noise of centrifuge and pollute, energy consumption resistance does not generate heat substantially simultaneously, reduces the thermal pollution that environment is caused.The super capacitor that adopts is a kind of novel energy-storing element, thermal energy storage process is reversible, its capacitance can be up to farad level even farad up to ten thousand, can realize that rapid large-current discharges and recharges, and have higher power density than storage battery and (can reach 1, the 000W/kg order of magnitude) and longer recycle the life-span (discharging and recharging number of times can reach 1,000,000 times), can in exceedingly odious environment such as low temperature, use simultaneously, and non-environmental-pollution.Super capacitor is parallel on the dc bus through two-way DC/DC changer, realizes that super capacitor and generator set are system's power supply jointly.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. one kind has the tire arm derrick crane that reclaims the potential energy auxiliary power source, lifting mechanism, swing type mechanism, luffing mechanism and the traveling gear and the actuating unit that comprise hoisting crane, described actuating unit is provided for driving lifting mechanism, swing type mechanism, luffing mechanism and traveling gear operation power by the generating of internal combustion engine generator group; Super capacitor is connected in parallel on the dc bus, charges, discharge, provide power for each operating mechanism as another propulsion source in variation according to DC bus-bar voltage; When each operating mechanism was in braking mode, the feedback electric energy was given super capacitor, and the energy that super capacitor constantly obtains feeding back charges; When operating mechanism needs power, super capacitor constantly discharges electric energy, along with super capacitor constantly discharges, its terminal voltage descends, dc bus voltage and then descends, when voltage is lower than the mains rectified voltage of diesel powerplant, diesel powerplant begins to participate in power supply, it is characterized in that: described super capacitor and two-way DC/DC changer, dsp controller, the energy consumption circuit is formed recovery potential energy auxiliary power source, super capacitor is parallel on the electric capacity of voltage regulation of dc bus through two-way DC/DC changer, dsp controller is connected with two-way DC/DC changer and energy consumption circuit, and the energy consumption circuit is in parallel with dc bus.
2, the tire arm derrick crane that reclaims the potential energy auxiliary power source that has according to claim 1, it is characterized in that: described energy consumption circuit is made up of dynamic buffer and energy consumption resistance, described dynamic buffer is connected with dsp controller, and dynamic buffer is in parallel with dc bus by energy consumption resistance.
3, the tire arm derrick crane that reclaims the potential energy auxiliary power source that has according to claim 1, it is characterized in that: described two-way DC/DC changer is made of the parallel connection of three two-way DC/DC changers of miniwatt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100535400A CN101293621A (en) | 2008-06-17 | 2008-06-17 | Tire arm derrick crane with auxiliary power source for recovering potential energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100535400A CN101293621A (en) | 2008-06-17 | 2008-06-17 | Tire arm derrick crane with auxiliary power source for recovering potential energy |
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| CN101293621A true CN101293621A (en) | 2008-10-29 |
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| CNA2008100535400A Pending CN101293621A (en) | 2008-06-17 | 2008-06-17 | Tire arm derrick crane with auxiliary power source for recovering potential energy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638092A (en) * | 2012-04-24 | 2012-08-15 | 武汉百楚科技有限公司 | DC (direct-current) UPS (Uninterrupted Power Supply) operational power supply |
| CN102882418A (en) * | 2012-10-22 | 2013-01-16 | 天津东方海陆集装箱码头有限公司 | Controllable direct-current switch of rubber tired gantry crane |
| CN103187876A (en) * | 2011-12-28 | 2013-07-03 | 艾默生网络能源有限公司 | DC/DC circuit for UPS |
| CN107658893A (en) * | 2017-10-27 | 2018-02-02 | 湖州师范学院 | A kind of lifting unit energy recovery utilizing system and control method |
| CN110293878A (en) * | 2019-07-30 | 2019-10-01 | 上海振华重工(集团)股份有限公司 | A kind of straddle carrier lithium battery management system and its management method |
-
2008
- 2008-06-17 CN CNA2008100535400A patent/CN101293621A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187876A (en) * | 2011-12-28 | 2013-07-03 | 艾默生网络能源有限公司 | DC/DC circuit for UPS |
| CN103187876B (en) * | 2011-12-28 | 2016-08-03 | 艾默生网络能源有限公司 | A kind of DC/DC circuit of uninterrupted power source |
| CN102638092A (en) * | 2012-04-24 | 2012-08-15 | 武汉百楚科技有限公司 | DC (direct-current) UPS (Uninterrupted Power Supply) operational power supply |
| CN102882418A (en) * | 2012-10-22 | 2013-01-16 | 天津东方海陆集装箱码头有限公司 | Controllable direct-current switch of rubber tired gantry crane |
| CN107658893A (en) * | 2017-10-27 | 2018-02-02 | 湖州师范学院 | A kind of lifting unit energy recovery utilizing system and control method |
| CN110293878A (en) * | 2019-07-30 | 2019-10-01 | 上海振华重工(集团)股份有限公司 | A kind of straddle carrier lithium battery management system and its management method |
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Open date: 20081029 |