WO2017161842A1 - 一种轮胎式龙门起重机三动力混合节能系统 - Google Patents

一种轮胎式龙门起重机三动力混合节能系统 Download PDF

Info

Publication number
WO2017161842A1
WO2017161842A1 PCT/CN2016/098621 CN2016098621W WO2017161842A1 WO 2017161842 A1 WO2017161842 A1 WO 2017161842A1 CN 2016098621 W CN2016098621 W CN 2016098621W WO 2017161842 A1 WO2017161842 A1 WO 2017161842A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
generator set
diesel generator
battery pack
inverter
Prior art date
Application number
PCT/CN2016/098621
Other languages
English (en)
French (fr)
Inventor
张睿娴
安同会
贾凯
黄璞
杨智明
陆金连
Original Assignee
深圳市兆涵科技发展有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201610176361.0A external-priority patent/CN105621256B/zh
Priority claimed from CN201620233421.3U external-priority patent/CN205500596U/zh
Application filed by 深圳市兆涵科技发展有限公司 filed Critical 深圳市兆涵科技发展有限公司
Publication of WO2017161842A1 publication Critical patent/WO2017161842A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/26—Circuits for controlling the lowering of the load by ac motors
    • B66C13/28—Circuits for controlling the lowering of the load by ac motors utilising regenerative braking for controlling descent of heavy loads and having means for preventing rotation of motor in the hoisting direction when load is released
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/30—Auxiliary equipments
    • B60W2710/305—Auxiliary equipments target power to auxiliaries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/416—Cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor

Definitions

  • the invention relates to a dock equipment power system, belonging to the field of new energy applications, in particular to a tire-type gantry crane three-power hybrid energy-saving system.
  • Diesel power is typically greater than 400 kW and fuel efficiency is less than 30%. The main reasons are as follows:
  • the diesel engine has the lowest fuel consumption when operating in the best economic fuel consumption area.
  • the output power of the generator set In the RTG operation, in order to ensure the normal supply of the control system and the working mechanism, the output power of the generator set must be greater than the required power of the RTG, and the generator set must be operated continuously at the rated speed. Due to the different power requirements of the RTG under different working conditions, the generator set needs to adjust the output power in real time to match it. Most of the time, the diesel engine deviates from the economic fuel consumption area and the energy efficiency is low. As shown in Figure 2, the diesel engine's characteristic curve A area, the engine has a minimum fuel consumption of 186g/kWh at an output of 240 kW at 1200-1300 rpm, which is called the “best economic fuel consumption zone”.
  • hybrid RTGs Due to the extremely low energy efficiency of traditional tire-type gantry cranes, there are obvious defects.
  • various forms of hybrid RTGs have gradually emerged.
  • the more representative hybrid RTGs are: "large-capacity battery packs + High-power generator set "Double-power RTG, "large-capacity battery pack + low-power generator set” extended-program hybrid RTG, "small-capacity battery pack + low-power generator set” superimposed power hybrid RTG.
  • the technical problem to be solved by the present invention is to provide a hybrid power supply mode in which the RTG is changed from a single generator set or a "generator set + battery pack", and a set of "small power generator sets is added without changing the power system of the conventional RTG.
  • + Large-capacity battery pack's hybrid system powers the RTG to form a "three-power hybrid” RTG powered by "small generator sets, large-capacity battery packs and large generator sets” to improve equipment reliability
  • a three-power hybrid energy-saving system for tire-type gantry cranes that reduces energy consumption and increases the feasibility of retrofitting old equipment.
  • a tire type gantry crane three-power hybrid energy-saving system comprising: system controller, small diesel generator set, AC/DC one-way converter, one-way DC/AC Inverter power supply, battery pack and its management system, tie switch, large diesel generator set, auxiliary transformer, and electric equipment mainly include: hoisting frequency converter, trolley frequency converter and large vehicle frequency converter, auxiliary auxiliary equipment and control power supply;
  • the output of the small diesel generator set is connected with the AC/DC one-way converter, and is rectified to supply power to the DC bus (DCBUS);
  • DCBUS DC bus
  • the input end of the one-way DC/AC inverter power supply is connected in parallel with the DC bus, and is output to the auxiliary transformer through the inverter;
  • the battery pack and its management system are connected in parallel with the DC busbar to provide operating power for the cart inverter, the hoisting inverter and the trolley inverter, and to recover the feedback energy of the system.
  • the small diesel generator set and the large diesel generator set may be separately or simultaneously started to be mixed with the battery pack to supply power to the crane.
  • the output power of the small diesel generator set is less than the average power at the highest duty cycle of the full load, and the long-term or clearance of the small diesel generator speed at the economic speed Sexual operation and output rated power, the power of the small diesel generator set is greater than or less than the maximum actual average power does not affect the final energy consumption, the optional power of the small diesel generator set is within the range of 15 ⁇ 75kW.
  • the output of the large diesel generator set is directly connected to the AC input end of the hoisting frequency converter, and is rectified to supply power to the DC bus, and the other circuit of the large diesel generator set is connected with the communication switch.
  • Two sets of diesel generator sets can be separately or simultaneously outputted to mix with the battery pack to provide power for the equipment to form the “three-power hybrid” system of the equipment; the battery pack and the large diesel generator set can independently support the operation; the low-power diesel generator set The average power configuration at the maximum load and the most frequent operating cycle frequency is not required, and only the average power of the average load and the average operating cycle frequency is designed.
  • the small generator set causes the battery to feed due to insufficient power output; when the power supply reaches the set value, the large generator set is started to directly supply power to the RTG. Energy charges the battery pack; when the battery pack reaches the set value, the large diesel generator set is turned off.
  • the battery pack can independently support the operation to meet the maximum power demand, and at the same time, all energy recovery and recycling can be realized to improve energy efficiency.
  • the power of the small generator set is designed according to the actual power demand of the actual operation.
  • the large generator set is in the closed state when the equipment is working, the small generator set is outputted at the rated power, and the insufficient power is supplemented by the battery pack, and the output of the system is
  • the power is highly matched to the demand and the energy efficiency is optimal. If the operation is busy or the load is large, and the actual average power demand is greater than the power of the small generator set, the battery is fed, and the large generator set is started to directly supply power to the equipment, and the surplus energy is used to charge the battery pack.
  • the battery pack can realize full recovery of feedback energy.
  • the prime mover system remains basically unchanged.
  • Figure 1 Schematic diagram of the three-power system of the present invention
  • Figure 2 Typical characteristics of the diesel engine.
  • system controller 1 small diesel generator set 2, AC/DC one-way converter 3, one-way DC/AC inverter power supply 4, battery pack and its management.
  • System 5 tie switch 6, large diesel generator set 7, auxiliary transformer 8; RTG and the related electrical equipment of the system mainly include: cart inverter 9, lifting inverter 10, trolley inverter 11, car motor 12, The hoisting motor 13, the cart motor 14, the auxiliary electric device 15, and the like.
  • large diesel generator set 7, auxiliary transformer 8, large car inverter 9, lifting inverter 10, trolley inverter 11, trolley motor 12, hoisting motor 13, cart motor 14 and auxiliary electrical equipment 15 and original The equipment is identical, the old equipment transformation project does not need to be changed; system controller 1, small diesel generator set 2, AC/DC one-way converter 3, one-way DC/AC inverter power supply 4, battery pack and its management system 5 is a hybrid system composed of a small generator set and a battery pack; the tie switch 6 is only connected when the conventional operation mode of the large generator set is switched, and the auxiliary power supply device is directly supplied by the generator set.
  • Circuit connection method and principle The output of the small diesel generator set 2 is connected with the AC/DC unidirectional converter 3, and is rectified to supply power to the DC bus (DC BUS); the 4-input DC/AC inverter power supply 4 input terminal is connected in parallel with the DC bus.
  • the battery pack 5 is connected with the DC bus line in parallel, which is the large vehicle frequency converter 9, the lifting frequency converter 10, the trolley inverter 11 provides operating power and recovers the feedback energy of the system;
  • the output of the large diesel generator set 7 is directly connected to the AC input end of the main lifting inverter 10, and is rectified to supply power to the DC bus, and the other is connected to the communication switch 6;
  • 6 Controlling the input power supply for switching auxiliary power supply is it provided by inverter power supply 4 or by large diesel generator set 7; system control
  • the device 1 communicates with the battery pack 5, and controls the size of the diesel engine to start and stop according to the voltage of the battery pack, the SOC power and the like. When the system is faulty, it judges and prompts manual or automatic switching to the traditional operation mode independently powered by the large diesel generator set.
  • the actual working conditions such as load weight and operating cycle frequency determine the actual average power demand of the work shift
  • the battery pack 5 is “shallow and shallow”, and the SOC power fluctuates within a narrow range and maintains a basic balance
  • the battery pack 5 is fed.
  • the large diesel generator set 7 is activated, and the small diesel can be turned off.
  • the generator set 2, the large diesel generator set AC is output to the AC input end of the hoisting frequency converter 10, and is rectified and sent to the DC bus, for use by the device and for charging the battery pack; when the battery pack SOC power is set, the shutdown is large.
  • the diesel generator set 7 simultaneously starts the small diesel generator set 2 and returns to the hybrid operation mode of the "small generator set + battery pack";
  • the battery pack 5 gradually increases the power.
  • the small diesel generator set 2 is turned off, and the RTG is powered by the pure battery; pure Restart the small diesel engine when the battery pack SOC drops to the set value under battery operation;
  • the output of the small diesel engine generator set directly converts the direct current to the direct current.
  • the frequency of the output alternating current does not need to be standard 50Hz. That is, the diesel engine does not need to pursue constant operation at 1500rpm. According to the characteristics of the diesel engine, the small diesel engine can be selected and controlled in the best economic fuel consumption area. Under the working mode, in the hybrid mode, the system output power is dynamically matched with the required power to achieve the highest energy efficiency;
  • the large diesel engine is in the closed state for a long time.
  • the short-term intermittent operation has little effect on the overall fuel consumption.
  • the hybrid power system fails, it is transferred to the large diesel engine to ensure the system reliability.
  • the original power system can achieve the best fuel efficiency with almost no modification, and has a high promotion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

一种轮胎式龙门起重机三动力混合节能系统，包括系统控制器（1）、小柴油发电机组（2）、AC/DC单向变换器（3）、单向DC/AC逆变电源（4）、电池组及其管理系统（5）、联络开关（6）、大柴油发电机组（7）、辅助变压器（8），用电设备主要包括：起升变频器（10）、小车变频器（11）和大车变频器（9）以及辅助用电设备（15）和控制电源；小柴油发电机组（2）输出与AC/DC单向变换器（3）连接，经整流后给直流母线供电；单向DC/AC逆变电源（4）输入端与直流母线并联，经逆变输出至辅助变压器（8）；电池组及其管理系统（5）与直流母线并联，大车变频器（9）、起升变频器（10）和小车变频器（11）通过电池组及其管理系统（5）提供作业功率并回收系统的回馈能量。

Description

一种轮胎式龙门起重机三动力混合节能系统 技术领域
本发明涉及一种码头设备动力系统，属于新能源应用领域，具体涉及一种轮胎式龙门起重机三动力混合节能系统。
背景技术
1.传统RTG缺陷
传统轮胎式龙门起重机采用单一发电机组为动力，柴油机功率通常大于400kW，燃油效率不足30％。主要原因如下：
a)装机容量大：由于必须满足RTG短时最高负荷需求，发电机组功率必须按RTG最高需求设计，比RTG满载平均功率约大8倍；
b)燃油效率低：柴油机在最佳经济油耗区运转时，比油耗最低。RTG工作时，为了确保控制系统及工作机构的正常供电，发电机组的输出功率必须大于RTG的需求功率，发电机组要不间断地在额定转速下运行。由于RTG在不同工况下的功率需求不同，发电机组需要实时调整输出功率使之与之匹配，大部分时间柴油机都偏离经济油耗区运转，能源效率低下。如图2柴油机万有特性曲线图A区，发动机在1200-1300转/分钟的转速下输出功率为240kW左右时油耗最低，为186g/kWh——称之为“最佳经济油耗区”。当系统功率需求降至40kW以下时，油耗高达426g/kWh(图2的B区)，是最佳经济油耗的2.3倍；RTG重载起升加速时，发动机由于燃料燃烧不良，经常冒黑烟，导致污染严重；
c)无制动能量回收功能：当RTG的起升机构下降、小车运行和大车行走机构减速制动时，因无储能装置，导致回馈的能量无法得到存储，必须 通过能耗电阻实时消耗掉。
2.目前混合动力RTG缺陷
由于传统轮胎式龙门起重机能源效率极低，存在明显缺陷，近年来随着动力电池的发展和应用，形式多样混合动力RTG逐步问世，比较有代表性的混合动力RTG有：“大容量电池组+大功率发电机组”双动力RTG、“大容量电池组+小功率发电机组”增程式混合动力RTG、“小容量电池组+小功率发电机组”叠加功率式混合动力RTG。
各种形式混合动力RTG不同程度地解决了能耗问题，节油率大约可达40％～60％，但由于RTG的作业工况千变万化，现有的混合动力RTG仍存在以下缺陷：
a)柴油机功率仍然偏大：负载重量以及每个作业循环之间的间隔时间不同，造成每个工班的实际平均功率不一，而混合动力系统的设计输出功率必须大于满载和最高作业循环频率的功率需求，因此现有混合动力系统的柴油机组仍然偏大,难以确保柴油机长期在最佳能效下运行。
b)“大容量电池组+大功率发电机组”双动力式混合动力RTG，以电池组为主动力源，控制柴油机间歇性工作，一旦启动便高效运行，能效较高。但电池需要“深充深放”，对电池性能要求较高；大功柴油机频繁启动，故障点增加。
c)推广困难：RTG昂贵，用户对设备可靠性放在首位，而动力电池运用技术仍处于发展阶段，故障率相对较高，用户对选用油电混合动力系统持谨慎态度；另外对于旧设备的改造，大多数混合动力系统需求更换原发电机组，一是拆下的旧机组不易处理，二是存在故障增加的风险，用户改 造积极性不高。
发明内容
本发明所要解决的技术问题是提供一种改变RTG由单一发电机组或由“发电机组+电池组”混合供电模式,在不改变传统RTG的动力系统的前提下，增加一套“小功率发电机组+大容量电池组”组成的混合动力系统给RTG提供动力，形成以“小发电机组、大容量电池组和大发电机组”为设备提供动力的“三动力混合”RTG，旨在提高设备可靠性、降低能耗和增加旧设备改造推广的可行性的轮胎式龙门起重机三动力混合节能系统。
本发明是通过以下技术方案来实现的：一种轮胎式龙门起重机三动力混合节能系统，其特征在于：包括系统控制器、小柴油发电机组、AC/DC单向变换器、单向DC/AC逆变电源、电池组及其管理系统、联络开关、大柴油发电机组、辅助变压器，用电设备主要包括：起升变频器、小车变频器和大车变频器以及辅助用电设备和控制电源；
小柴油发电机组输出与AC/DC单向变换器连接，经整流后给直流母线(DCBUS)供电；单向DC/AC逆变电源输入端与直流母线并联，经逆变输出至辅助变压器；
电池组及其管理系统与直流母线并联，为大车变频器、起升变频器和小车变频器提供作业功率并回收系统的回馈能量。
作为优选的技术方案，所述小柴油发电机组和所述大柴油发电机组可以单独或者同时启动与所述电池组混合为起重机供电。
作为优选的技术方案，所述小柴油发电机组的输出功率小于满载用作业循环频率最高时平均功率，小柴油发电机转速在经济转速下长期或间隙 性运行并输出额定功率，小柴油发电机组的功率大于或小于最大实际平均功率均不影响最终能耗，小柴油发电机组选配功率在15～75kW范围以内。
作为优选的技术方案，所述大柴油发电机组输出一路直接与起升变频器的交流输入端连接，经整流后为直流母线供电，大柴油发电机组的另一路与联络开关连接。
本发明的设计特点、工作原理和主要控制逻辑说明如下：
a)大小两套柴油发电机组可分别或同时输出与电池组混合为设备提供动力，形成设备的“三动力混合”系统；电池组和大柴油发电机组均可独立支持作业；小功率柴油发电机组不要求按最大负载、最频繁作业循环频率的平均功率配置，仅按平均负载和平均作业循环频率的平均功率设计即可。
b)通常情况下，设备作业时大发电机组处于关闭状态，小柴油发电机组以额定功率输出，达到最佳能效，不足部分功率由电池组补充，系统输出功率与需求功率高度匹配。
c)当实际动态平均功率小于小柴油发电机组的额定功率时，小发电机组输出的盈余能量给电池组充电，电池组电量达到设定上限时，关闭柴油机，转为纯电池组提供动力；当电池组放电至设定下限时，重新启动小发电机组。
d)偶尔的，当实际平均功率大于小柴油发电机组的额定功率时，小发电机组因功率输出不足造成电池馈电；当馈电量达到设定值时，启动大发电机组直接给RTG供电，富余能量给电池组充电；电池组电量达到设定值时，关闭大柴油发电机组。
e)当电池系统出现故障时，启动大柴油发电机组，转由传统模式作业，无需抢修；大柴油发电机组在大负载及作业循环特别频繁时起到应急保障作用，提高设备可靠性。
f)电池组可独立支持作业，满足最大功率需求的同时，可实现全部能量回收并循环利用，提高能效。
本发明的有益效果是：小发电机组功率按实际作业平均功率需求设计，通常情况下设备作业时大发电机组处于关闭状态，小发电机组以额定功率输出，不足功率由电池组补充，系统的输出功率与需求高度匹配，能效最佳。作业繁忙或负荷较大，实际平均功率需求大于小发电机组功率造成电池馈电时，启动大发电机组给设备直接供电，富余能量给电池组充电。电池组可实现回馈能量全回收。应用于旧设备改造时，原动力系统基本不变。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1：本发明三动力系统原理图；
图2：柴油机万有特性曲线图。
具体实施方式
本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。
本说明书(包括任何附加权利要求、摘要和附图)中公开的任一特征，除非特别叙述，均可被其他等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而已。
如图1和图2所示，本系统主要构成包含：系统控制器1、小柴油发电机组2、AC/DC单向变换器3、单向DC/AC逆变电源4、电池组及其管理系统5、联络开关6、大柴油发电机组7、辅助变压器8；RTG与本系统关联的用电设备主要包括：大车变频器9、起升变频器10、小车变频器11、小车电机12、起升电机13、大车电机14和辅助用电设备15等。其中，大柴油发电机组7、辅助变压器8、大车变频器9、起升变频器10、小车变频器11、小车电机12、起升电机13、大车电机14和辅助用电设备15与原设备完全相同，旧设备改造项目不需要做任何更改；系统控制器1、小柴油发电机组2、AC/DC单向变换器3、单向DC/AC逆变电源4、电池组及其管理系统5为小发电机组和电池组组成的混合动力系统；联络开关6仅在转由大发电机组的传统作业模式时连接，辅助用电设备转由发电机组直供。
电路连接方式及原理：小柴油发电机组2输出与AC/DC单向变换器3连接，经整流后给直流母线(DC BUS)供电；单向DC/AC逆变电源4输入端与直流母线并联，经逆变输出至辅助变压器8，变成AC380V50Hz标准三相电给设备的辅助用电设备使用；电池组5与直流母线并联，为大车变频器9、起升变频器10、小车变频器11提供作业功率并回收系统的回馈能量；大柴油发电机组7输出一路直接与主起升变频器10的交流输入端连接，经整流后为直流母线供电，另一路与联络开关6连接；联络开关6控制切换辅助供电的输入电源，是由逆变电源4提供还是由大柴油发电机组7提供；系统控制 器1与电池组5通讯，根据电池组的电压、SOC电量等参数控制大小柴油机启停，系统故障时，判断并提示手工、或自动切换至由大柴油发电机组独立供电的传统作业模式。
本系统的能量管理控制及工作原理详细说明如下：
1、作业时启动小柴油发电机组2,经AC/DC单向变换器3转换输送到直流母线为辅助用电设备供电并给电池组充电，当系统控制器1检测到电池组SOC电量达到设定值时，工作机构可投入作业；
2、作业时负载重量以及作业循环频率等实际工况决定着工班的实际平均功率需求；
3、如实际平均功率恰好等于小柴油发电机组2的输出功率时，小柴油机长期以额定功率输出，能效最佳，电池组5“浅充浅放”，SOC电量窄幅波动并保持基本平衡；
4、如实际平均功率大于小柴油发电机组2的输出功率时，电池组5馈电，当电池组馈电，SOC电量降至设定值时，启动大柴油发电机组7，同时可关闭小柴油发电机组2，大柴油发电机组AC输出至起升变频器10的交流输入端，经整流后送至直流母线，给设备使用以及为电池组充电；当电池组SOC电量升设定时，关闭大柴油发电机组7同时启动小柴油发电机组2，转回由“小发电机组+电池组”的混合动力作业模式；
5、如实际平均功率小于小柴油发电机组2的输出功率时，电池组5电量逐步增加，当电池组SOC升至设定值时，关闭小柴油发电机组2，RTG由纯电池提供动力；纯电池作业下电池组SOC降至设定值时，重新启动小柴油机；
6、如遇装船或集中提箱作业时，总是重载下降空载起升，回馈能量大于总体需求能量，电池组5电量越来越高，当电量达到设定值时，RTG原有制动单元打开，回馈能量通过制动电阻消耗掉。
7、如作业过程中电池系统或逆变单元出现短时无法回复的故障时，人工切换至大柴油发电机组7供电，恢复至由单一的大柴油发电机组提供动力的传统模式作业。
本发明轮胎式龙门起重机三动力混合节能系统具备以下特点：
1、小柴油机发电机组输出交流电直接转换直流电，对输出的交流电频率不必要求为标准50Hz，即柴油机无需追求恒定在1500rpm转速运行，可根据柴油机本身特性，选择并控制小柴油机在最佳经济油耗区下工作，在混合动力模式下，系统输出功率与需求功率全程动态匹配，达到最高能效；
2、大柴油机长期处于关闭状态，在偶发的实际平均功率较大时，短时间歇性工作，对总体油耗影响不大；混合动力系统故障时，转由大柴油机工作，系统可靠性有保障；
3、绝大部分作业工况下，实现RTG回馈能量的全回收并循环利用。
4、电池组“浅充浅放”使用寿命长；
5、本系统应用于旧RTG改造时，除辅助用电回路增加联络开关以外，原动力系统几乎不需要做任何改动即可达到最佳燃油效率，具有较高的推广性。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护 范围为准。

Claims (4)

  1. 一种轮胎式龙门起重机三动力混合节能系统，其特征在于：包括系统控制器、小柴油发电机组、AC/DC单向变换器、单向DC/AC逆变电源、电池组及其管理系统、联络开关、大柴油发电机组、辅助变压器，用电设备主要包括：起升变频器、小车变频器和大车变频器以及辅助用电设备和控制电源；
    小柴油发电机组输出与AC/DC单向变换器连接，经整流后给直流母线(DCBUS)供电；单向DC/AC逆变电源输入端与直流母线并联，经逆变输出至辅助变压器；
    电池组及其管理系统与直流母线并联，大车变频器、起升变频器和小车变频器通过电池组及其管理系统提供作业功率并回收系统的回馈能量。
  2. 根据权利要求1所述的轮胎式龙门起重机三动力混合节能系统，其特征在于：所述小柴油发电机组和所述大柴油发电机组可以单独或者同时启动与所述电池组混合为起重机供电。
  3. 根据权利要求1所述的轮胎式龙门起重机三动力混合节能系统，其特征在于：所述小柴油发电机组的输出功率小于满载用作业循环频率最高时平均功率，小柴油发电机转速在经济转速下长期或间隙性运行并输出额定功率，小柴油发电机组的功率大于或小于最大实际平均功率均不影响最终能耗，小柴油发电机组选配功率在15～75kW范围以内。
  4. 根据权利要求1所述的轮胎式龙门起重机三动力混合节能系统，其特征在于：所述大柴油发电机组输出一路直接与起升变频器的交流输入端 连接，经整流后为直流母线供电，大柴油发电机组的另一路与联络开关连接。
PCT/CN2016/098621 2016-03-24 2016-09-09 一种轮胎式龙门起重机三动力混合节能系统 WO2017161842A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610176361.0A CN105621256B (zh) 2016-03-24 2016-03-24 一种轮胎式龙门起重机三动力混合节能系统
CN201610176361.0 2016-03-24
CN201620233421.3U CN205500596U (zh) 2016-03-24 2016-03-24 一种轮胎式龙门起重机三动力混合节能系统
CN201620233421.3 2016-03-24

Publications (1)

Publication Number Publication Date
WO2017161842A1 true WO2017161842A1 (zh) 2017-09-28

Family

ID=59897725

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/098621 WO2017161842A1 (zh) 2016-03-24 2016-09-09 一种轮胎式龙门起重机三动力混合节能系统

Country Status (4)

Country Link
US (1) US20170275140A1 (zh)
SG (1) SG10201702397SA (zh)
TW (1) TWI623482B (zh)
WO (1) WO2017161842A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108792952B (zh) * 2018-07-27 2024-02-27 南昌永旺机电设备有限公司 电磁起重机及其应急供电装置
CN111799854A (zh) * 2020-04-07 2020-10-20 中国铁道科学研究院集团有限公司金属及化学研究所 一种适用于闪光焊机或焊后热处理机的超级储能电池管理系统
CN111960280B (zh) * 2020-09-02 2022-06-21 三一海洋重工有限公司 能量回馈控制方法、起重机控制方法以及起重机
FR3120619B1 (fr) * 2021-03-10 2023-12-01 Manitowoc Crane Group France Procédé de répartition d’une puissance électrique sur des équipements d’une grue
FR3141009A1 (fr) * 2022-10-12 2024-04-19 Manitowoc Crane Group France Procédé automatique de gestion écologique de puissance pour une grue

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708789B1 (en) * 1999-10-05 2004-03-23 Eletra Industrial Ltda. System for a hybrid vehicle; hybrid vehicle operated by the system and device for power
CN101521470A (zh) * 2009-03-26 2009-09-02 严兆基 轮胎式集装箱龙门起重机供电方法及系统
CN101924478A (zh) * 2009-06-16 2010-12-22 孙枫 流动式起重设备的供电方法及系统
CN105621256A (zh) * 2016-03-24 2016-06-01 深圳市安顺节能科技发展有限公司 一种轮胎式龙门起重机三动力混合节能系统
CN205500596U (zh) * 2016-03-24 2016-08-24 张睿娴 一种轮胎式龙门起重机三动力混合节能系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005295691A (ja) * 2004-03-31 2005-10-20 Toyota Motor Corp 動力出力装置およびこれを搭載する自動車
CN100408466C (zh) * 2006-01-27 2008-08-06 上海振华港口机械（集团）股份有限公司 轮胎式龙门集装箱起重机的节能控制系统
US7554278B2 (en) * 2006-06-13 2009-06-30 Railpower Technologies Corp. Load-lifting apparatus and method of storing energy for the same
CN2932827Y (zh) * 2006-06-30 2007-08-08 天津港集装箱码头有限公司 集装箱轮胎式龙门起重机双速节能发电系统装置
CN102460949B (zh) * 2009-06-16 2015-01-21 住友重机械工程服务株式会社 起重机用混合式电源装置及起重机用混合式电源装置的控制方法
CN102300757B (zh) * 2009-09-11 2014-11-26 丰田自动车株式会社 混合动力车以及混合动力车的参数显示方法
JP5589076B2 (ja) * 2010-06-15 2014-09-10 本田技研工業株式会社 自動車用駆動システムおよび自動車用駆動システムの制御方法
US8857635B2 (en) * 2010-12-22 2014-10-14 Terex Cranes Germany Gmbh Crane and method for operating a crane using recovery of energy from crane operations as a secondary energy source
US9859789B2 (en) * 2014-12-05 2018-01-02 Shenzhen Anshun Energy-Saving Technology Development Co., Ltd Rubber-tyred gantry crane (RTG) dual power energy saving system
CN204384722U (zh) * 2014-12-05 2015-06-10 深圳市安顺节能科技发展有限公司 一种起重机势能回收循环利用双动力系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708789B1 (en) * 1999-10-05 2004-03-23 Eletra Industrial Ltda. System for a hybrid vehicle; hybrid vehicle operated by the system and device for power
CN101521470A (zh) * 2009-03-26 2009-09-02 严兆基 轮胎式集装箱龙门起重机供电方法及系统
CN101924478A (zh) * 2009-06-16 2010-12-22 孙枫 流动式起重设备的供电方法及系统
CN105621256A (zh) * 2016-03-24 2016-06-01 深圳市安顺节能科技发展有限公司 一种轮胎式龙门起重机三动力混合节能系统
CN205500596U (zh) * 2016-03-24 2016-08-24 张睿娴 一种轮胎式龙门起重机三动力混合节能系统

Also Published As

Publication number Publication date
TWI623482B (zh) 2018-05-11
SG10201702397SA (en) 2017-10-30
TW201733895A (zh) 2017-10-01
US20170275140A1 (en) 2017-09-28

Similar Documents

Publication Publication Date Title
TWI623482B (zh) 輪胎式龍門起重機三動力混合節能系統
TWI636945B (zh) 電梯自動解救及節能裝置以及其控制方法、以及超級電容器模塊
CN106965815B (zh) 一种增程式电动牵引机车的动力系统及动力控制方法
WO2017041752A1 (zh) 一种间歇性运转持续性供电的柴油发电机节能系统
TWI592358B (zh) 輪胎式龍門起重機(rtg)雙動力節能系統
CN212400925U (zh) 增程式混合动力工程机械能量管理系统
CN105668415A (zh) 集装箱龙门起重机的供电系统及其供电切换方法
CN112039175A (zh) 一种行车取力发电系统
Shreelakshmi et al. An energy efficient and environment friendly elevator system using ultracapacitor and fuel cell with power factor correction
CN105621256B (zh) 一种轮胎式龙门起重机三动力混合节能系统
CN203261092U (zh) 起重机转场供电节能的锂电池系统
CN204481536U (zh) 利用超级电容储能式e-rtg转场电源
CN109131380B (zh) 内燃机车主辅传动系统及内燃机车
CN202004500U (zh) 起重机辅助电源
CN109455589A (zh) 电梯系统
CN109904923A (zh) 一种不间断应急电源及控制方法
CN212400926U (zh) 多动力源工程机械能量管理系统
CN205472296U (zh) 用于以柴油发电机组为动力源的港口提升机械节能系统
CN208691003U (zh) 港口场桥混合型供电系统
CN205500596U (zh) 一种轮胎式龙门起重机三动力混合节能系统
US20160159619A1 (en) Rubber-tyred gantry crane (RTG) dual power saving system
CN105347194A (zh) 驱动系统
CN101924478A (zh) 流动式起重设备的供电方法及系统
CN109552064B (zh) 一种基于蓄电池的混合动力系统的工作方法
CN114030364A (zh) 工程机械能量管理系统、方法、装置和存储介质

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16895191

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16895191

Country of ref document: EP

Kind code of ref document: A1