CN110249494A - The distribution system of moving body - Google Patents
The distribution system of moving body Download PDFInfo
- Publication number
- CN110249494A CN110249494A CN201880009197.1A CN201880009197A CN110249494A CN 110249494 A CN110249494 A CN 110249494A CN 201880009197 A CN201880009197 A CN 201880009197A CN 110249494 A CN110249494 A CN 110249494A
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- CN
- China
- Prior art keywords
- electric power
- electric
- power converter
- command value
- moving body
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J99/00—Subject matter not provided for in other groups of this subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
- Y02T70/5236—Renewable or hybrid-electric solutions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The distribution system of moving body includes the 1st electric system, and the 1st electrical load for being less than specified value with the variation of generator and electric power is connect；2nd electric system, the 2nd electrical load that can become specified value or more with variation are connect；1st electric power converter；2nd electric power converter；3rd electric power converter and bus disconnecting switch.Bus disconnecting switch becomes connection status when the 2nd electrical load does not operate, and become dissengaged positions in the 2nd electrical load operating, the 1st electric power converter is controlled according to the 1st power command value provided by the low-frequency component less than assigned frequency in the electric power actual value by the 2nd electric power converter, sagging control is carried out to the 2nd electric power converter.Electric power is controlled to eliminate the imbalance of the electric power of inflow and outflow direct current middle part to the 3rd electric power converter.
Description
Technical field
The present invention relates to a kind of distribution systems of moving body.
Background technique
In the past, such as it is well known that the moving bodys such as ship propulsion system (referring to patent document 1).Recently, from passing through height
From the perspective of the efficiency raising and maintenance cost that load is obtained using generator reduce, preferably merely with 1 generator
To run the technology of the electric power of moving body ((single generator is run hereinafter also referred to as monomotor
operation))。
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2016-55850 bulletin
Summary of the invention
Problems to be solved by the invention
But needed for the operation for contemplating the propulsion system for supplying above-mentioned previous moving body using 1 generator
In the case where electric power, due to having the electrical load (for example, crane etc.) of variation sharply to may result in generator tripping,
There are the risks of power failure.Therefore, it using the electrical load with variation sharply, needs to make additional generator
Operating.
Alternatively, electrical storage device can also be made to connect via power inverter with electric system, filled by generator and electric power storage
The variation for sharing electric power is set, to replace additional generator.But in order to make electrical storage device share the major part of variation,
It needs that power measurement unit is arranged to each load to find out variation, before the Mechatronic Systems of generator is responded, high speed
The electric power of ground control power inverter.
The present invention is to complete in order to solve above-mentioned problem, it is therefore intended that by easy method, even if using
In the case where electrical load with variation sharply, the electric system of moving body can be also run using 1 generator.
The means used to solve the problem
In order to achieve the above object, the distribution system of moving body involved in one embodiment of the present invention includes the 1st electric power
System is connect with generator and the 1st electrical load, and the generator is using prime mover as driving force, the 1st power load
Load is to be less than specified value by load consumption or the variation (hereinafter referred to as electrical load variation) by loading regenerated electric power
Load；2nd electric system, changing with electrical load can connect as the 2nd more than specified value electrical load；The
1 electric power converter, exchange end is connect with the 1st electric system, and DC terminal is connect with direct current middle part；2nd electric power
Converter, exchange end is connect with the 2nd electric system, and DC terminal is connect with the direct current middle part；3rd electric power turns
Parallel operation, two DC terminals are connect with the direct current middle part and electrical storage device respectively；And bus disconnecting switch, constitute with from institute
The 1st electric system is stated to rise via the 1st electric power converter and the 2nd electric power converter to the 2nd electric system
The path of supply path parallel connection, the bus disconnecting switch become connection status when the 2nd electrical load does not operate, and in institute
Become dissengaged positions when stating the 2nd electrical load operating, according to being less than in the electric power actual value by the 2nd electric power converter
1st power command value provided by the low-frequency component of assigned frequency controls the 1st electric power converter, to the described 2nd
Electric power converter carries out sagging (droop) control, and it is straight described in inflow and outflow to eliminate to control electric power to the 3rd electric power converter
Flow the imbalance of the electric power of middle part.
According to above structure, make electrical load change (for example, the assigned frequency of the time rate of change of electric power, electric power at
Point amplitude or stair-stepping electric power variation etc.) the case where the 2nd electrical load operating of specified value or more can be become
Under, bus disconnecting switch is opened, dissengaged positions will be set as between the 1st electric system and the 2nd electric system.As a result, in the 1st power train
In system, electric power directly fed to the 1st electrical load from generator, and by from the 1st electric system via the 1st electric power converter with
And the 2nd the supply path of electric power converter to the 2nd electric system the 2nd electrical load is supplied electric power.The electricity of 2nd electric power converter
Power changes naturally according to the operational situation of load.On the other hand, in by the control of the 1st electric power converter from generator to direct current
Between portion electric power flowing.In addition, being controlled the 3rd electric power converter to absorb the electric power of inflow and outflow direct current middle part
Difference.The electric power difference of the 1st electric power converter and the 2nd electric power converter is automatically absorbed into electrical storage device as a result,.When the 2nd
When generating load change sharply in electrical load, due to carrying out sagging control to the 2nd electric power converter, can continue into
Power supply of the hand-manipulating of needle to the 2nd electrical load.Further, since according to by small in the electric power actual value of the 2nd electric power converter
The 1st power command value provided by the low-frequency component of assigned frequency controls the 1st electric power converter, therefore only power load
It carries the low-frequency component less than assigned frequency in changing and shows as the variation of the electric power in the 1st electric system, it is specified that more than frequency
Frequency content is absorbed by the control of the 3rd electric power converter by electrical storage device.The load change quilt of generator engine as a result,
Inhibit, the tripping of the generator as caused by load change sharply can be prevented.Thereby, it is possible to only by adjusting assigned frequency
Come set generator engine load change size, therefore be easy to carry out control adjustment, do not need that electricity is arranged to each load
Power measuring unit.
On the other hand, in the case where the 2nd electrical load is inoperative, it is closed bus disconnecting switch, by the 1st electric system and the
2 electric system are set as connection status.It is formed as a result, and from the 1st electric system via the 1st electric power converter and the 2nd electric power
The supply path of converter to the 2nd electric system constitutes path in parallel.Sagging control is carried out to the 2nd electric power converter, therefore
It can synergistically be operated with generator (the 1st electric system).Even if passing through sagging control in the case where alternator failure
Effect, can be also powered from electrical storage device, not will lead to power failure.Therefore, no matter there is the power load of variation sharply
It carries and whether operates, the electric system of moving body can be run by 1 generator.
According to the distribution system of above-mentioned moving body, can be, sagging control carried out to the 2nd electric power converter, at
For the sagging spy for indicating the relationship between the frequency of the 2nd electric system and the electric power actual value of the 2nd electric power converter
Property line on a bit, in the case where having cut off 2 electric system from the 1st electric system, adjust the sagging spy
Property line, is set as standard frequency for the frequency of the 2nd electric system, by the 2nd electric system and the 1st power train
It in the case where system connection, is adjusted so that the electric power of the 2nd electric power converter is set as 0kW, and by the 2nd power train
The frequency of system is set as standard frequency.
According to above structure, sagging control is carried out to the 2nd electric power converter with become indicates the 2nd electric system frequency and
On the droop characteristic line of relationship between the electric power actual value of 2nd electric power converter a bit, therefore from being connected with generator
The 1st electric system cutting include the 2nd electrical load the 2nd electric system in the case where, sharply relative to the 2nd electrical load
Variation, the frequency of the 2nd electric system changes according to droop characteristic line.That is, the 2nd electric power converter energy in autonomous operating
It is enough to be functioned in the same manner as generator.In turn, droop characteristic line can be adjusted so as in the same manner as generator, after variation
Frequency is set as standard frequency.
On the other hand, in the case where the 2nd electric system to be connect with the 1st electric system, the 2nd electric power converter and power generation
Machine is operated in a manner of associated, by adjusting droop characteristic line, so as to adjust the share rate of steady load.Especially inciting somebody to action
In the case that the steady load share rate of 2nd electric power converter is set as 0% (electric power 0kW), at steady state, generator is responsible for
The 100% of load consumption electric power.Thereby, it is possible to inhibit the loss as caused by the 2nd electric power converter.On the other hand, in power load
In the case that load changes, the 2nd electric power converter and generator both sides transiently change according to droop characteristic line.Cause
This, can only share the variance components of electrical load by the 2nd electric power converter and generator.At this point, due to from the beginning
2nd electrical load does not just operate, therefore even if generator is responsible for half of variance components or so, and any problem is also not present.Into
And even if generator generates failure and disconnects from the 1st electric system, the 2nd electric power converter can replace the 1st electric system to supply
To electric power, power failure not will lead to.Electric power at this time is supplied from electrical storage device.This means that electrical storage device can in this operation
To be utilized via the 2nd electric power converter and the 3rd electric power converter as backup power source.
According to the distribution system of above-mentioned moving body, the distribution system that can be the moving body also has the 4th electrical power conversion
Device, the 4th electric power converter are connect with the direct current middle part, are connected at the exchange end of the 4th electric power converter electronic
Machine is equipped with propeller in the cardan shaft of the motor.
According to above structure, the electric propulsion system of moving body can be applied to.
The distribution system that can be the moving body also has the 4th electric power converter, the 4th electric power converter and described straight
Middle part connection is flowed, motor generator is connected at the exchange end of the 4th electric power converter, in the cardan shaft of motor generator
Host and propeller are installed.
According to above structure, the hybrid propulsion system of moving body can be applied to.
It can be low-frequency component less than assigned frequency in the actual value by the 2nd electric power converter and described the
The sum of the low-frequency component less than assigned frequency in the electric power actual value of 4 electric power converters provides the 1st power command value.
According to above structure, pass through the low-frequency component and the 4th electric power converter of the actual value of the 2nd electric power converter
The sum of the low-frequency component of electric power actual value provides the 1st power command value, therefore is for example able to suppress the electric power change by motor
Dynamic and the 2nd electrical load load change sharply and the influence to the 1st electric system generated.It is including especially sharply
Variation the 2nd load it is inoperative and in the case where being closed bus disconnecting switch, the 1st power command value can only provide the 4th electric power
The low-frequency component of the electric power actual value of converter.
It can be according to the 4th power command value, Electric control carried out to the 4th electric power converter, the 4th electric power refers to
Value is enabled to be the power command value of motor generator obtained from controlling as revolving speed or be the dynamoelectric and power generation provided from station
The power command value of machine, wherein revolving speed rotational speed command value of the control based on the motor generator provided from station with
Deviation between the actual revolving speed of the motor generator.
According to above structure, rotational speed command value or power command value are provided from station, so as to pass through the 4th electric power
Converter carries out revolving speed control or the Electric control of motor generator.
It can be the current actual value or electric power actual value according to the 3rd electric power converter, calculate the electric power storage dress
The charge rate set, calculates the 1st charge and discharge correction power command value and the 4th charge and discharge correct power command value, to carry out charge and discharge
Electricity converges on charge rate in the range of regulation, refers to the 1st power command value plus the 1st charge and discharge correction electric power
Value is enabled, power command value is corrected plus the 4th charge and discharge to the 4th power command value.
The charge and discharge that the electric power difference of 1st electric power converter and the 2nd electric power converter and the 4th electric power converter passes through electrical storage device
Electricity and by automatic absorption.According to above structure, according to the actual value of the 3rd electric power converter, in addition the 1st charge and discharge correction electric power refers to
Value and the 4th charge and discharge is enabled to correct power command value, so as to realize that (State of Charge changes the SOC of electrical storage device
State) control.
Invention effect
In accordance with the invention it is possible to run the electric system of moving body by 1 generator.
Detailed description of the invention
Fig. 1 is the shifting for schematically showing the distribution system with moving body involved in the 1st embodiment of the invention
The figure of the structure of kinetoplast.
Fig. 2 is the block diagram for showing the structure of control device of Fig. 1.
Fig. 3 is the block diagram for showing the structure of electric power control portion of Fig. 2.
Fig. 4 is the structure of the distribution system of the moving body in the case where showing the breaker (Tie breaker) for opening Fig. 1
Block diagram.
Droop characteristic line used in sagging (droop) control of the 2nd electric power converter when Fig. 5 is individual operation.
Fig. 6 is the block diagram of the structure of the distribution system of the moving body in the case where showing the breaker for being closed Fig. 1.
Droop characteristic line used in the sagging control of the 2nd electric power converter when Fig. 7 is collaboration operating.
Fig. 8 is the shifting for schematically showing the distribution system with moving body involved in the 2nd embodiment of the invention
The figure of the structure of kinetoplast.
Fig. 9 is the block diagram for showing the structure of control device of Fig. 8.
Figure 10 is the block diagram for schematically showing an example inside the control device of Fig. 9.
Figure 11 is the block diagram for schematically showing the other examples inside the control device of Fig. 9.
Figure 12 is the shifting for schematically showing the distribution system with moving body involved in the 3rd embodiment of the invention
The figure of the structure of kinetoplast.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to embodiment according to the present invention.Hereinafter, to phase in whole attached drawings
Same or corresponding element assigns identical label, and the repetitive description thereof will be omitted.
(the 1st embodiment)
Fig. 1 is to schematically show the distribution system 100 with moving body involved in the 1st embodiment of the invention
The figure of the structure of moving body.As shown in Figure 1, the distribution system 100 of moving body has a generator 5, electrical load 7, electric power
Conversion equipment 1, electrical storage device 2, AC bus (AC bus line) 8, bus (bus) breaker 4, control device 3 and propulsion
System 200.
Generator 5 is the main electric power source supplied electric power to electrical load 7.Generator 5 is by prime mover 6 as driving
Power supplies electric power used in moving body.When the variation of the electric power is very big, may cause to come from since engine trips
The power supply of generator 5 is cut off.
Electrical load 7 includes the 1st electrical load 7a and the 2nd electrical load 7b connecting with AC bus 8.1st power load
Carry the equipment that 7a is the electric power that consumption is supplied from generator 5.1st electrical load 7a is provided with multiple, and being does not include sharply
The equipment of the load change of electric power.The hotel of illumination air-conditioning of the 1st electrical load 7a for example including ship etc. loads (hotel
) etc. loads the equipment that continuously works, hoist engine, host 70 engine starting motor etc. short time work device.The
2 electrical load 7b are the equipment for consuming electric power, for example, the equipment of the load change for crane etc. comprising electric power sharply.This
A little devices are connect with AC bus 8 respectively.In addition, " including variation sharply " refers to the time rate of change of electric power, the rule of electric power
Amplitude or the thread amount relevant to the variation of consumed electric power such as stair-stepping electric power variation for determining frequency content are regulation
Situation more than value." not comprising variation sharply " refers to the case where this tittle is less than specified value.It can be according to by starting mechanism
Make suggested by quotient with following performance-relevant information and determine specified value to load change.
AC bus 8 is the supply path being made of the 1st bus 8a and the 2nd bus 8b, the 1st bus 8a and generator 5, the
1 electrical load 7a and power inverter 1 connect, and the 2nd bus 8b and the 2nd electrical load 7b and power inverter 1 connect
It connects.The 1st bus 8a and the 2nd bus 8b are attached or are cut off by bus disconnecting switch 4.Bus disconnecting switch 4 is in the 2nd electric power
It is connection status when load 7b is not operated, and is dissengaged positions in the 2nd electrical load 7b operating.In the present embodiment, by
The opening and closing of 3 control bus breaker 4 of control device.Hereinafter, will be connect with the 1st bus 8a in the distribution system 100 of moving body
Electric system be known as " the 1st electric system ", by electric system connect with the 2nd bus 8b referred to as " the 2nd electric system ".Change and
Yan Zhi, bus disconnecting switch 4 will be connected in a manner of it can be opened and closed between the 1st electric system (8a) and the 2nd electric system (8b),
And it can constitute and from the 1st electric system (8a) via the 1st electric power converter 11 and the 2nd electric power converter 12 to the 2nd
The path of the supply path parallel connection of electric system (8b).
One terminal of power inverter 1 is connect with the 1st electric system (8a), another terminal and the 2nd electric system
(8b) connection.Specifically, there is power inverter 1 the 1st electric power converter 11, the 2nd electric power converter 12, the 3rd electric power to turn
Parallel operation 13 and direct current middle part 9.
1st electric power converter 11 adjusts the electric power consumed from the 1st electric system (8a).1st electric power converter 11 is AC-DC
Converter.The exchange end of 1st electric power converter 11 is connect with the 1st electric system (8a), also, the 1st electric power converter 11 is straight
Stream end is connect with direct current middle part 9.
2nd electric power converter 12 supplies electric power the 2nd electric system (8b).2nd electric power converter 12 is AC-DC conversion
Device.The DC terminal of 2nd electric power converter 12 is connect with direct current middle part 9, also, the exchange end and the 2nd of the 2nd electric power converter 12
Electric system (8b) connection.
3rd electric power converter 13 is the unbalanced DC/ for controlling electric power to eliminate the electric power of inflow and outflow direct current middle part 9
DC converter.One DC terminal of the 3rd electric power converter 13 is connect with direct current middle part 9, also, the 3rd electric power converter 13
Another DC terminal is connect with electrical storage device 2.
The DC terminal of direct current middle part 9 and the 1st electric power converter 11, the DC terminal of the 2nd electric power converter 12 and the 3rd electricity
One DC terminal of force transducer 13 connects.
Electrical storage device 2 is connect with another DC terminal of the 3rd electric power converter 13.Electrical storage device 2 for example by secondary cell,
Capacitor is constituted.As secondary cell, lithium ion battery, nickel-metal hydride battery and lead storage battery can be used for example.As capacitor
Lithium-ion capacitor, double layer capacitor, nanometer mixed capacitor (Nano hybrid can be used for example in device
Capacitor), carbon nanotube capacitor (carbon nanotube capacitor).
The distribution system 100 of present embodiment is applied to the ship equipped with mechanically-propelled system (hereinafter also referred to as machinery
Boat).In mechanically-propelled ship, propulsion system 200 has the host 70 of the main driving source as propeller 80.Propeller 80
For propeller for watercraft.Host 70 and generator 5 are independent, are configured to drive propeller 80 merely with the thrust of host 70.Separately
Outside, the structure of propulsion system 200A is different according to the type for the ship for carrying distribution system 100A, such as enumerates hybrid power
Ship is electric-only propulsion ship and equipped with shaft generator mechanically-propelled ship.
Control device 3 has memory and arithmetic unit (not shown), to power inverter 1, bus disconnecting switch 4
Opening and closing, generator 5 and propulsion system 200 controlled.The control device 3 of present embodiment is according to from station 40
Operation information controls each element of moving body.As shown in the block diagram of fig. 2, control device 3 has main control unit 30, electricity
Force control unit 31, sagging control unit 32, charge/discharge control unit 33 and sagging control unit 35.These each portions are by filling in operation
Set the function of executing the program that is stored in memory and realize.In addition, electric power control portion 31, sagging control unit 32, charge and discharge
The function of electric control portion 33 and sagging control unit 35 can separately include the arithmetic unit in the 1st electric power converter 11, the 2nd electricity
The arithmetic unit of force transducer 12, the arithmetic unit of the 3rd electric power converter 13, generator 5 engine control system program
In.
Main control unit 30 is for example according to the behaviour of the position of the expression control stick inputted from the control stick for being set to station 40
Make information, to select the action mode of propulsion system 200, starts the constitution equipment of propulsion system 200 and stop.Main control unit
30 generate the opening and closing instruction of bus disconnecting switch 4 according to the action mode of moving body, but for example can also be directly right by driver
Bus disconnecting switch 4 is opened and closed.In addition, the part of functions of main control unit 30 may include in the electricity supply and demand for managing ship
In the program of power-supply management system.In addition, main control unit 30 can carry out starting stopping to generator 5, it can also be from power supply
Management system carries out starting stopping.Power-supply management system carries out the adjustment of the droop characteristic line in aftermentioned sagging control, electricity
The management of the electric power actual value of power conversion device.
Electric power control portion 31 is according to the low frequency less than assigned frequency in the electric power actual value for passing through the 2nd electric power converter 12
1st power command value provided by ingredient is controlled such that the 1st electric power converter 11 and is carried out by the 1st electric power converter 11
The electric power of electrical power conversion becomes the 1st power command value.Electric power control portion 31 has filter 311 (referring to the block diagram of Fig. 3).Filtering
Device 311 is low-pass filter or moving average filter with regular time constant.From the 2nd electricity of the input of main control unit 30
The electric power actual value of force transducer 12, filter 311 only make to be less than regulation frequency in the electric power actual value of the 2nd electric power converter 12
The low-frequency component of rate passes through, and is output to the 1st electric power converter 11 as the 1st power command value.
Sagging control unit 32 carries out sagging control to the 2nd electric power converter 12." sagging control " refers in control device 3
Internal build controls the model of the manager (governor) of generator, so that having the 2nd electric power converter 12 is equivalent to hair
The control of the characteristic of motor.2nd electric power converter 12 has the characteristic for being equivalent to generator, and as a result, it is possible to seamlessly switch
Autonomous operating and systematic collaboration operating.In addition, omitting detailed description since " sagging control " is well known technology.It closes
In the details of " sagging control ", for example, please referring to " G.Marina&E.Gatti, " Large Power PWM IGBT
Converter for Shaft Alternator Systems”,35th Annual IEEE Power Electronics
Specialists Conference,2004".In addition, in " sagging control ", respectively by the frequency of sensor detection electric system
The electric power (active power) that rate, 2 electric power converter 12 of He You send or receive electric system, and it is input into sagging control
In portion 32, for these controls in sagging control.
The basis in the 3rd electric power converter 13 of charge/discharge control unit 33 comes from voltage sensor and current sensor (not
Diagram) sensing data monitor the voltage of direct current middle part 9, carry out the charge and discharge control of electrical storage device 2 so that in direct current
Between portion 9 voltage become fixed value.Charge/discharge control unit 33 is turned according to the variation of the voltage of direct current middle part 9 by the 3rd electric power
Parallel operation 13 controls the charge and discharge of electrical storage device 2.It is flowed into the electric power of direct current middle part 9 as a result, and among direct current
The difference for the electric power that portion 9 is flowed out is absorbed by electrical storage device 2.
Sagging control unit 35 detects active power, finds out frequency targets value according to droop characteristic, carries out generator 5
Prime mover (engine turbine etc.) revolving speed control.The mechanical properties such as the inertia according to generator, determine frequency variation pair
Speed is followed in load change.
Then, the movement of the distribution system of moving body 100 is illustrated.According to the operating lever operation for passing through station 40
And the action mode of the moving body selected carrys out the opening and closing of control bus breaker 4 (referring to Fig. 2).Main control unit 30 is selecting to make
In the case where the defined action mode of 2nd electrical load 7b (for example, crane) operating, the opening of bus disconnecting switch 4 is generated
Instruction, sends bus disconnecting switch 4 for the instruction.Fig. 4 is the distribution for showing the moving body in the case that bus disconnecting switch 4 is opened
The block diagram of the structure of system 100.As shown in figure 4, passing through the 4, the 1st electric system (8a) of bus disconnecting switch and the 2nd electric system
It is in dissengaged positions between (8b).In the 1st electric system (8a), electric power is directly fed to the 1st electrical load 7a from generator 5,
But since the 2nd electric system (8b) is separated with the 1st electric system (8a), turn from the 1st electric system (8a) via the 1st electric power
Parallel operation 11 and the 2nd electric power converter 12 supply electric power the 2nd electrical load 7b.
At this point, the electric power supplied by the 2nd electric power converter 12 to the 2nd electric system (8b) is according to the 2nd electrical load 7b
Operational situation and change, correspondingly, the frequency of the 2nd electric system (8b) also changes.Specifically, under
The control unit 32 (referring to Fig. 2) that hangs down carries out sagging control to the 2nd electric power converter 12.Hereinafter, by bus disconnecting switch 4 as shown in Figure 4
It opens and the 2nd electric power converter 12 the case where being operated independently of generator 5 referred to as individual operation.In individual operation,
Generation power is determined according to the operational situation of load.In the sagging control of the 2nd electric power converter 12 when Fig. 5 is individual operation
The droop characteristic line used.As shown in figure 5, droop characteristic is between active power (being set as just when by power generation) and system frequency
It is lower to be set to the more big then system frequency of active power for relationship.Frequency when interests are by nominal load and it is non-loaded when frequency
Difference sagging rate is defined divided by value obtained from rated frequency.Usually, sagging rate is set as phase in each electric power source
With value, but also can be set as needed as different values.Sagging control unit 32 carries out sagging control to the 2nd electric power converter 12
System, to become the relationship between the frequency of the 2nd electric system (8b) of expression and the electric power actual value of the 2nd electric power converter 12
On droop characteristic line a bit.
(a) of Fig. 5 is set droop characteristic line under the stable state of the 2nd electric power converter 12.Such as (a) of Fig. 5
It is shown, at steady state, when the 2nd electric power converter 12 supplies electric power P1 to the 2nd electric system (8b), droop characteristic line
(for the line for passing through × marking in figure) makes frequency corresponding with P1 become standard frequency (frequency targets value) Fs.
In the case that (b) of Fig. 5 shows the load change generated in the 2nd electrical load 7b (for example, crane) sharply
Droop characteristic line.Herein, it is contemplated that due to load change sharply, the 2nd electric power converter 12 supplies the 2nd electric system (8b)
Electric power the case where increasing to P2 from P1.As shown in (b) of Fig. 5, the 2nd electric power converter 12 makes the 2nd electricity according to droop characteristic line
The frequency of Force system (8b) reduces ((1) on straight line × label).Later, reduction should be made by power-supply management system adjustment
The frequency retrieval of 2nd electric system (8b) is to target value, that is, standard frequency Fs droop characteristic line (arrow directions of (2)).
(c) of Fig. 5 is the droop characteristic by the 2nd electric power converter 12 of the adjustment new settings of power-supply management system
Line.As shown in (c) of Fig. 5, in new droop characteristic line, frequency corresponding with P2 is set to as standard frequency (frequency mesh
Scale value) Fs.Even if load change sharply is generated in the 2nd electrical load 7b (for example, crane) as a result, by
In carrying out sagging control to the 2nd electric power converter 12, therefore the 2nd electric power converter 12 also can be with generator in autonomous operating
Similarly function.Thereby, it is possible to continue the power supply to the 2nd electrical load 7b.In individual operation, due to storing
Electric installation 2 is electric power source, and different from generator of engine, load change will not become problem.
On the other hand, the 1st electric power converter 11 adjusts the electric power consumed by the 1st electric system (8a).Specifically, due to
Referred to according to the 1st electric power that the low-frequency component less than assigned frequency in the electric power actual value by the 2nd electric power converter 12 provides
Value is enabled, to control the 1st electric power converter 11, therefore the electric power variation for being less than the low-frequency component of assigned frequency shows as the
Load change in 1 electric system is, it is specified that the electric power variation of frequency content more than frequency is absorbed by electrical storage device 2.As a result, from
Load change when generator 5 is observed is suppressed, and can prevent the tripping of the generator 5 as caused by load change sharply.
Then, to the defined action mode for operating the 2nd electrical load 7b (for example, crane) has been selected the case where
Under the movement of distribution system 100 be illustrated.Fig. 6 is the distribution for showing the moving body in the case that bus disconnecting switch 4 is closed
The block diagram of the structure of system 100.As shown in fig. 6, distribution system 100 by bus disconnecting switch 4 make the 1st electric system (8a) and
2nd electric system (8b) is in connection status.It is formed as a result, and from the 1st electric system (8a) via the 1st electric power converter 11
And the 2nd electric power converter 12 to the 2nd electric system (8b) supply path parallel connection path.Hereinafter, bus disconnecting switch 4 is closed
It closes and the 2nd electric power converter 12 the case where synergistically being operated with generator 5 referred to as cooperates with operating.When cooperateing with operating, energy
The electrical load share rate of generator or electric power converter of the enough control in collaboration operating.In addition, when cooperateing with operating, no
It distinguishes " the 1st electric system " and " the 2nd electric system ", and is referred to as " electric system ".In addition, when cooperateing with operating, due to " the
2 electrical load 7b " are inoperative, therefore, do not distinguish " the 1st electrical load 7a " and " the 2nd electrical load 7b ", and are referred to as " electric power
Load ".
Droop characteristic used in sagging control of the 2nd electric power converter 12 with generator 5 when Fig. 7 is collaboration operating
Line.Sagging control is carried out to the 2nd electric power converter 12, to make it the frequency and the 2nd electric power converter for indicating electric system
On the droop characteristic line of relationship between 12 electric power actual value a bit.Similarly, sagging control is also carried out to generator 5,
To make it a bit on droop characteristic line.
(a) of Fig. 7 is set droop characteristic line under the stable state of the 2nd electric power converter 12 and generator 5.
As shown in (a) of Fig. 7, for the droop characteristic line of the 2nd electric power converter 12, for standard frequency (the frequency mesh of electric system
Scale value) power command value is set as 0kW (on straight line × label) by Fs, so that the 2nd electric power converter 12 at steady state
Electric power is not assigned to electric system.On the other hand, for the droop characteristic line of generator 5, for the standard frequency of electric system
(frequency targets value) Fs is set as power command value Pc1 (on straight line × label), so that 5 pairs of electricity of generator at steady state
Force system assigns electric power.Currently, since the power command value of the 2nd electric power converter 12 is 0kW, the Pc1 and electric system
The electric power of consumed load is consistent.(b) of Fig. 7 shows sagging in the case where producing load change in electrical load 7
Characteristic line.Herein, it is contemplated to the case where electrical load is reduced to Pc2 from Pc1.At this point, make generator 5 and electric power converter 12 that
This operation point changes according to droop characteristic line, so that the power generation electricity of the generation power of generator 5 and electric power converter 12
Power and become Pc2.As shown in (b) of Fig. 7, frequency rises, (1) of the operation point of the 2nd electric power converter 12 on straight line
The movement of × label.In this case, electric power converter 12 constitutes from electric system and consumes electric power.The machines such as the inertia by generator
Tool characteristic and the acting characteristic of electric power converter determine that frequency variation follows speed relative to load change.Later, pass through
Power-supply management system adjustment is for making the frequency retrieval of the electric system after rising to standard frequency Fs, making electric power converter 12
Each droop characteristic line (arrow directions of (2)) of the power recovery to 0Kw.
(c) of Fig. 7 is the 2nd electric power converter 12 of new settings and the droop characteristic line of generator 5.2nd electrical power conversion
The droop characteristic line of device 12 transiently changes, but final as shown in (c) of Fig. 7, the droop characteristic line of the 2nd electric power converter 12
Return to original operation point (power command value (0kW), system frequency are standard frequency Fs).Under new steady s tate, power generation
Machine 5 is responsible for the 100% of load electric consumption (Pc2).As a result, by adjusting droop characteristic line so that the 2nd electric power converter 12
Electric power becomes 0kW, so as to only share the variance components of electrical load by the 2nd electric power converter 12 and generator 5.
The 2nd electric power converter is synergistically operated by sagging control with generator 5 as a result, therefore even if generating electricity
In the case that machine 5 breaks down, electrical load 7 can also be supplied electric power, therefore not will lead to power failure.In this case, electric
Force transducer 12 is individual operation, and required electric power can be supplied from electrical storage device 2.
Therefore, according to the present embodiment, in the electric system of moving body, switched by bus disconnecting switch 4 for electricity
No matter the supply path of power load 7 has whether the electrical load 7 of variation sharply operates, can using 1 generator come
Run the electric system of moving body.
(the 2nd embodiment)
Then, the 2nd embodiment is illustrated.The structure of the distribution system of the moving body of present embodiment is real with the 1st
It is identical to apply mode.Hereinafter, omitting the explanation of structure identical with the 1st embodiment, only different structures is illustrated.
Fig. 8 is the shifting for schematically showing the distribution system with moving body involved in the 2nd embodiment of the invention
The figure of the structure of kinetoplast.As shown in figure 8, distribution system 100A is compared with the 1st embodiment (Fig. 1), difference is to be applied to
Ship equipped with electric propulsion system.Specifically, power inverter 1A also has the 4th connect with direct current middle part 9
Electric power converter 14, propulsion system 200A have the motor generator 90 that is connect with the exchange end of the 4th electric power converter 14 and
The propeller 80 of the cardan shaft of motor generator 90 is installed on via deceleration device 60.
In being electric-only propulsion ship, motor generator 90 is functioned as the main driving source of propeller 80.Motor generator
90 receive electric power via the 1st electric power converter 11 and the 4th electric power converter 14 from the generator 5 connecting with bus 8 and generate
Driving force, and the driving force is given to propeller 80, to drive propeller 80.In being electric-only propulsion ship, motor generator
90, which are made exclusively for motor, works, but can also be used as generator and work.
Electric control is carried out to the 1st electric power converter 11 according to the 1st power command value, according to the 4th power command value to the 4th
Electric power converter 14 carries out Electric control.Control device 3A has the electric power control portion 31 of the 1st electric power converter 11 of control, and
Electric power control portion 34 with the 4th electric power converter 14 of control (referring to the block diagram of Fig. 9).
Figure 10 is the block diagram for schematically showing an example of inside of control device 3A.As shown in Figure 10, the 1st electrical power conversion
The electric power control portion 31 of device 11 has the 1st filter 311, the 2nd filter 312 and adder 313.
1st filter 311 is low-pass filter or moving average filter with regular time constant.From master control
Portion (30) processed inputs the electric power actual value of the 2nd electric power converter 12 to the 1st filter 311.1st filter 311 only makes the 2nd electric power
The low-frequency component less than assigned frequency in the electric power actual value of converter 12 passes through, and the low-frequency component is output to adder
313。
2nd filter 312 is low-pass filter or moving average filter with regular time constant.From power supply
Management system inputs the electric power actual value of the 4th electric power converter 14 to the 2nd filter.2nd filter 312 only turns the 4th electric power
The low-frequency component less than assigned frequency in the electric power actual value of parallel operation 14 passes through, and the low-frequency component is output to adder
313。
Adder 313 is real to the low-frequency component of the actual value of the 2nd electric power converter 12 and the electric power of the 4th electric power converter 14
The low-frequency component of actual value is added, and is output to the 1st electric power converter 11 as the 1st power command value.In addition, the 1st
The time constant of filter 311 and the time constant of the 2nd filter 312 may be the same or different.
According to the structure of Figure 10, in addition to the effect of above embodiment, due to passing through the actual value of the 2nd electric power converter 12
Low-frequency component and the sum of low-frequency component of electric power actual value of the 4th electric power converter 14 the 1st power command value is provided, therefore
Such as it is able to suppress and is generated since the electric power of motor generator 90 changes and the load change sharply of the 2nd electrical load 7b
The influence to the 1st electric system (8a).It is especially inoperative in the 2nd electrical load 7b comprising variation sharply and be closed total
It, can be using the low-frequency component of the electric power actual value of the 4th electric power converter 14 as the 1st power command in the case where line breaker 4
Value.
In addition, as shown in Figure 10, main control unit 30 has the 1st look-up table 301 and the 2nd look-up table 302.
The position of the expression control stick inputted from the control stick for being set to station 40 is entered in 1st look-up table 301
Operation information (for example, power-saving command).Prestored in 1st look-up table 301 be stored with it is corresponding with the stick position of station 40
Motor generator 90 power command value, electronic hair corresponding with stick position is set according to the operation information inputted
The power command value of motor 90, and the power command value is output to the electric power control portion 34 of the 4th electric power converter 14.
The position of the expression control stick inputted from the control stick for being set to station 40 is entered in 2nd look-up table 302
Operation information (for example, speed command).It is previously stored in 2nd look-up table 302 corresponding with the stick position of station 40
Motor generator 90 rotational speed command value, electronic hair corresponding with stick position is set according to the operation information inputted
The rotational speed command value of motor 90, and the rotational speed command value is output to the electric power control portion 34 of the 4th electric power converter 14.
In addition, as shown in Figure 10, the electric power control portion 34 of the 4th electric power converter 14 has adder-subtractor 341, PID control
Portion 342 and switching switch 343.
In adder-subtractor 341, subtract to from the rotational speed command value of the motor generator 90 inputted by the 2nd look-up table 302
It goes by the actual revolving speed of revolving speed detection means input (not shown), and is entered into PID control portion 342.
PID control portion 342 passes through between the revolving speed to the rotational speed command value and actual motor generator 90 that are inputted
Deviation carries out ratio processing, Integral Processing and differential process, to generate the power command value of motor generator 90, and should
Power command value is output to switching switch 343.In addition, also can be omitted about Integral Processing, differential process.
Switch switch 343 by the power command value of the motor generator 90 set by the 1st look-up table 301 and by PID control
Any one in the power command value for the motor generator 90 that portion 342 generates is output to the 4th electricity as the 4th power command value
Force transducer 14.
Switching switch 343 can be operated according to cutting from main control unit 30 for instruction.
In addition it is also possible to be that motor generator power command value, motor generator is used only there is no switching switch 343
The propulsion system of arbitrary instruction value in rotational speed command value.
Therefore, the 4th power command value is by the rotational speed command value based on the motor generator 90 provided from station 40
The power command of motor generator 90 obtained from the revolving speed control of deviation between the actual revolving speed of motor generator 90
It is worth or is the power command value of the motor generator 90 provided from station 40, therefore by providing revolving speed from station 40
Instruction value or power command value, so as to by the 4th electric power converter 14 carry out motor generator 90 revolving speed control or
Person's Electric control.
Figure 11 is the block diagram for schematically showing the other examples inside control device 3A.As shown in figure 11, control device
3A have SOC operational part 411, charge-discharge electric power instruction value operational part 412, electric power distribution operational part 413, adder 414 and
Adder 415.
The current actual value or electric power reality of the 3rd electric power converter 13 are inputted from power-supply management system to SOC operational part 411
Actual value.SOC operational part 411 is according to the current actual value of the 3rd electric power converter 13 or electric power calculated with actual values electrical storage device 2
Charge rate, and the charge rate is output to charge-discharge electric power instruction value operational part 412.
Charge-discharge electric power instruction value operational part 412 according to the charge rate operation charge-discharge electric power instruction value of electrical storage device 2, and
The charge-discharge electric power instruction value is output to electric power distribution operational part 413.
Electric power distribution operational part 413 according to charge-discharge electric power instruction value calculate the 1st charge and discharge correction power command value and
4th charge and discharge correct power command value, to carry out charge and discharge charge rate are converged in prescribed limit, by the 1st charge and discharge school
Positive power command value is output to adder 414, and the 4th charge and discharge correction power command value is output to adder 415.
1st charge and discharge correction power command value is added by adder 414 with the 1st power command value, and is output to the 1st
Electric power converter 11.In addition, the low-frequency component of the actual value of the 2nd electric power converter 12 can be used for the 1st power command value
With the low-frequency component of the electric power actual value of the 4th electric power converter 14 and (output valve of the adder 313 of Figure 10), can also make
Use specified value.
4th charge and discharge correction power command value is added by adder 415 with the 4th power command value, and is output to the 4th
Electric power converter 14.In addition, for the 4th power command value, can be used according to from station 40 rotational speed command value or
Value obtained from power command value (output valve of the switching switch 343 of Figure 10), also can be used specified value.
Therefore, according to the structure of Figure 11, by the actual value according to the 3rd electric power converter 13, the 1st charge and discharge school is mutually added
Positive power command value and the 4th charge and discharge correct power command value, so as to realize the SOC control of electrical storage device 2.
(the 3rd embodiment)
Then, the 3rd embodiment is illustrated.The structure of the distribution system of the moving body of present embodiment is real with the 1st
It is identical to apply mode.Hereinafter, omitting the explanation of structure identical with the 1st embodiment, only different structures is illustrated.
Figure 12 is the shifting for schematically showing the distribution system with moving body involved in the 3rd embodiment of the invention
The figure of the structure of kinetoplast.As shown in figure 12, compared with the 1st embodiment (Fig. 1), difference is to be applied to distribution system 100B
The ship of propulsion system equipped with mixed motivity type.Specifically, power inverter 1A also has connects with direct current middle part 9
The 4th electric power converter 14 connect, propulsion system 200B have the motor generator connecting with the exchange end of the 4th electric power converter 14
90 and the host 70 and propeller 80 of the cardan shaft of motor generator 90 are installed on via deceleration device 60.
In hybrid power ship, host 70 is functioned as the main driving source of propeller 80,90 conduct of motor generator
The auxiliary drive source of propeller 80 functions.Motor generator 90 turns from the generator 5 connecting with bus 8 via the 1st electric power
Parallel operation 11 and the 4th electric power converter 14 receive electric power and generate driving force, and the driving force is given to propeller 80, thus
The driving of the propeller 80 carried out by host 70 is assisted.In addition, motor generator 90 receives power from host 70 to send out
Electricity, and electricity is given to bus 8 via the 4th electric power converter 14 and the 1st electric power converter 11, thus to by generating electricity
The power supply for bus 8 that machine 5 carries out is assisted.Alternatively, generator 5 can also be made to stop, by motor generator 90
As main electric power source.
In addition, in the present embodiment, " moving body " is ship, but there is no particular limitation as to it, as long as mobile object
Body can be vehicle (rolling stock, automobile etc.), aircraft etc..In addition, " propeller " is propeller for watercraft, but to it
It is not particularly limited, as long as can be wheel, flight propeller to the device that moving body is promoted.
According to the above description, it will be apparent to those skilled in the art that a variety of improvement of the invention and other embodiment party
Formula is obvious.Therefore, above description should only be interpreted as illustrative, be to execute to those skilled in the art's teaching
It is provided for the purpose of best mode of the invention.In the case where not departing from thought of the invention, can to its structure and
The detailed content of the one side or both sides of function carries out substantive change.
Industrial availability
The present invention is suitable for the electric system of the moving bodys such as ship.
Label declaration:
1 power inverter
2 electrical storage devices
3 control devices
4 bus disconnecting switch
5 generators
6 prime mover
7 electrical loads
The 1st electrical load of 7a (exists and sharply changes)
The 2nd electrical load of 7b (there is no sharply change)
8 buses
The 1st bus of 8a (the 1st electric system)
The 2nd bus of 8b (the 2nd electric system)
9 direct current middle parts
11 the 1st electric power converters
12 the 2nd electric power converters
13 the 3rd electric power converters
40 stations
60 deceleration devices
70 hosts
80 propellers
90 motor generators
The distribution system of 100 moving bodys
Claims (7)
1. a kind of distribution system of moving body, includes
1st electric system is connect with generator and the 1st electrical load, and the generator is using prime mover as driving force, institute
Stating the 1st electrical load is to be less than the load of specified value by load consumption or the variation by loading regenerated electric power；
2nd electric system, the 2nd electrical load that can become the specified value or more with the variation are connect；
1st electric power converter, exchange end is connect with the 1st electric system, and DC terminal is connect with direct current middle part；
2nd electric power converter, exchange end are connect with the 2nd electric system, and DC terminal and the direct current middle part connect
It connects；
3rd electric power converter, two DC terminal are connect with the direct current middle part and electrical storage device respectively；And
Bus disconnecting switch will be connected in a manner of it can be opened and closed between the 1st electric system and the 2nd electric system,
And constitute with from the 1st electric system via the 1st electric power converter and the 2nd electric power converter to described
The path of the supply path parallel connection of 2nd electric system,
The bus disconnecting switch becomes connection status when the 2nd electrical load does not operate, and in the 2nd power load carrying
Become dissengaged positions when turning,
According to provided by the low-frequency component less than assigned frequency in the electric power actual value by the 2nd electric power converter
1 power command value controls the 1st electric power converter, sagging control is carried out to the 2nd electric power converter, to described
3rd electric power converter controls electric power to eliminate the imbalance of the electric power of direct current middle part described in inflow and outflow.
2. the distribution system of moving body according to claim 1, wherein
Sagging control is carried out to the 2nd electric power converter, to become the frequency and the described 2nd for indicating the 2nd electric system
On the droop characteristic line of relationship between the electric power actual value of electric power converter a bit,
In the case where having cut off 2 electric system from the 1st electric system, the droop characteristic line is adjusted, it will
The frequency of 2nd electric system is set as standard frequency,
In the case where the 2nd electric system to be connect with the 1st electric system, it is adjusted with by the 2nd electric power
The electric power of converter is set as 0kW, and the frequency of the 2nd electric system is set as standard frequency.
3. the distribution system of moving body according to claim 1 or 2, wherein the distribution system of the moving body also has
4th electric power converter, the 4th electric power converter are connect with the direct current middle part,
It is connected with motor at the exchange end of the 4th electric power converter, propeller is installed in the cardan shaft of the motor.
4. the distribution system of moving body according to any one of claims 1 to 3, wherein the distribution of the moving body
System also has the 4th electric power converter, and the 4th electric power converter is connect with the direct current middle part,
It is connected with motor generator at the exchange end of the 4th electric power converter, master is installed in the cardan shaft of motor generator
Machine and propeller.
5. the distribution system of moving body according to claim 3 or 4, wherein
Pass through low-frequency component in the actual value of the 2nd electric power converter less than assigned frequency and the 4th electrical power conversion
The sum of the low-frequency component less than assigned frequency in the electric power actual value of device provides the 1st power command value.
6. the distribution system of the moving body according to any one of claim 3 to 5, wherein
According to the 4th power command value, Electric control is carried out to the 4th electric power converter,
4th power command value is the power command value of motor generator obtained from being controlled as revolving speed or is from behaviour
Make the power command value of the motor generator of platform offer, wherein revolving speed control is based on the electronic hair provided from station
Deviation between the rotational speed command value of motor and the actual revolving speed of the motor generator.
7. the distribution system of the moving body according to any one of claim 3 to 6, wherein
According to the current actual value or electric power actual value of the 3rd electric power converter, the charging of the electrical storage device is calculated
Rate,
The 1st charge and discharge correction power command value and the 4th charge and discharge correction power command value are calculated, to fill to carry out charge and discharge
Electric rate converges in the range of regulation,
Power command value is corrected plus the 1st charge and discharge to the 1st power command value,
Power command value is corrected plus the 4th charge and discharge to the 4th power command value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017015495A JP6838979B2 (en) | 2017-01-31 | 2017-01-31 | Mobile power distribution system |
| JP2017-015495 | 2017-01-31 | ||
| PCT/JP2018/001961 WO2018143013A1 (en) | 2017-01-31 | 2018-01-23 | Power distribution system in moving body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110249494A true CN110249494A (en) | 2019-09-17 |
| CN110249494B CN110249494B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880009197.1A Active CN110249494B (en) | 2017-01-31 | 2018-01-23 | Power distribution system for mobile body |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6838979B2 (en) |
| CN (1) | CN110249494B (en) |
| TW (1) | TWI661635B (en) |
| WO (1) | WO2018143013A1 (en) |
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| JP6987291B1 (en) * | 2021-07-28 | 2021-12-22 | 東京瓦斯株式会社 | Charge / discharge control device, charge / discharge control program |
| JP6987292B1 (en) * | 2021-07-28 | 2021-12-22 | 東京瓦斯株式会社 | Charge / discharge control device, charge / discharge control program |
| JP2023042959A (en) * | 2021-09-15 | 2023-03-28 | オムロン株式会社 | Battery capacity estimation device, charging plan generation device, discharging plan generation device, and battery capacity estimation method |
| JP7515994B2 (en) | 2022-12-21 | 2024-07-16 | 西芝電機株式会社 | Charging/discharging system and charging/discharging method |
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| Publication number | Publication date |
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| CN110249494B (en) | 2022-11-18 |
| JP2018125941A (en) | 2018-08-09 |
| TW201841449A (en) | 2018-11-16 |
| WO2018143013A1 (en) | 2018-08-09 |
| JP6838979B2 (en) | 2021-03-03 |
| TWI661635B (en) | 2019-06-01 |
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