CN109449998A - A kind of high-power shore electric power system - Google Patents
A kind of high-power shore electric power system Download PDFInfo
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- CN109449998A CN109449998A CN201910022846.8A CN201910022846A CN109449998A CN 109449998 A CN109449998 A CN 109449998A CN 201910022846 A CN201910022846 A CN 201910022846A CN 109449998 A CN109449998 A CN 109449998A
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- Prior art keywords
- insulated gate
- gate bipolar
- bipolar transistor
- reactor
- electric power
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Classifications
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of high-power shore electric power systems.The high-power shore electric power system includes sequentially connected input control module, 500kW shore electric power modules in parallel module and output isolation module；The 500kW shore electric power modules in parallel module includes the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group in parallel.The high-power shore electric power system is shunted by mould group in parallel, in guarantee system under the premise of device safe and stable operation, can effectively promote the capacity of shore electric power, preferably meet the needs of large capacity load.And two shore electric power mould group parameters in parallel and device selection are consistent in the topological structure of the high-power shore electric power system, the unbalanced problem of parallel branch caused by as the problems such as device, internal resistance can be reduced, and then inhibit circulation, it solves the problems, such as to be also easy to produce circulation between each parallel power unit of traditional shore electric power.
Description
Technical field
The present invention relates to shore electric power technical fields, more particularly to a kind of high-power shore electric power system.
Background technique
High temperature, high humidity, highly corrosive, the big load impacts such as shore electric power is specific on ship, bank harbour etc. are severe
Use environment and the large power supply equipment for being specifically designed manufacture are widely used on ship, shipbuilding and repair shop, ocean are bored
Well platform, bank harbour etc. need to become 60Hz high quality frequency-voltage stabilized power source from 50Hz commercial power, to ship electrical equipment
The occasion being powered.In general, the electric topology of low pressure shore electric power is the design structure of integration, including a set of fairing
With a set of inverter.Under this topological structure, when power-supply system capacity increases, pass through the electricity of fairing and inverter
Stream will increase, but since device normal operation needs to meet certain voltage, current requirements, and the capacity of shore electric power can be by
To limitation, the capacity of shore electric power is caused to be difficult to reach MW class, is difficult meet the needs of high-capacity dynamical load.
Summary of the invention
The object of the present invention is to provide a kind of high-power shore electric power system, limited with the traditional shore electric power capacity of solution
Problem, and provide the solution of parallel power mould group loop current suppression.
To achieve the above object, the present invention provides following schemes:
A kind of high-power shore electric power system, the high-power shore electric power system includes: sequentially connected input control
Module, 500kW shore electric power modules in parallel module and output isolation module；The 500kW shore electric power modules in parallel module
Including the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group in parallel；
The input terminal of the input control module is connected with 380V/50HZ three-phase alternating-current supply；The input control mould
The output end of the block input terminal with the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group respectively
It is connected；The output end of the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group respectively with it is described
The input terminal of output isolation module is connected；The output end of the output isolation module exports 450V/60Hz three-phase alternating current.
Optionally, the first 500kW shore electric power mould group includes sequentially connected first input filter unit, first
AC/DC rectification unit, the first energy storage/filter unit, the first DC/AC inversion unit and the first output filter unit；Described
Two 500kW shore electric power mould groups include sequentially connected second input filter unit, the 2nd AC/DC rectification unit, the second energy storage/
Filter unit, the 2nd DC/AC inversion unit and the second output filter unit；
The output end of the input control module respectively with the first input filter unit and second input filter
The input terminal of unit is connected；The input of the output end of the first input filter unit and the first AC/DC rectification unit
End is connected, and the output end of the first AC/DC rectification unit is connected with first energy storage/filter unit input terminal；
First energy storage/filter unit output end is connected with the input terminal of the first DC/AC inversion unit；Described first
The output end of DC/AC inversion unit is connected with the input terminal of the first output filter unit；The second input filter list
The output end of member is connected with the input terminal of the 2nd AC/DC rectification unit, the output end of the 2nd AC/DC rectification unit
It is connected with second energy storage/filter unit input terminal；Second energy storage/filter unit output end and described second
The input terminal of DC/AC inversion unit is connected；The output end of the 2nd DC/AC inversion unit and the second output filtering are single
The input terminal of member is connected；It is described first output filter unit and it is described second output filter unit output end respectively with it is described
The input terminal of output isolation module is connected.
Optionally, the input control module includes circuit breaker Q F1, circuit breaker Q F2 and circuit breaker Q F3；The breaker
The input terminal of QF1, the circuit breaker Q F2 and the circuit breaker Q F3 are separately connected the A of the 380V/50HZ three-phase alternating-current supply
Phase, B phase and C phase.
Optionally, the first input filter unit includes reactor L1, reactor L2 and reactor L3；Described second is defeated
Entering filter unit includes reactor L4, reactor L5 and reactor L6；The input terminal of the reactor L1 and the reactor L4
It is connected respectively with the output end of the circuit breaker Q F1；The input terminal of the reactor L2 and the reactor L5 respectively with institute
The output end for stating circuit breaker Q F2 is connected；The input terminal of the reactor L3 and the reactor L6 respectively with the breaker
The output end of QF3 is connected.
Optionally, the first AC/DC rectification unit includes insulated gate bipolar transistor Q1, insulated gate bipolar crystal
Pipe Q2, insulated gate bipolar transistor Q3, insulated gate bipolar transistor Q4, insulated gate bipolar transistor Q5 and insulated gate are double
Bipolar transistor Q6；The output end of the reactor L1 respectively with the emitter of the insulated gate bipolar transistor Q1 and described
The collector of insulated gate bipolar transistor Q2 is connected；The output end of the reactor L2 respectively with the insulated gate bipolar
The emitter of transistor Q3 is connected with the collector of the insulated gate bipolar transistor Q4；The output end of the reactor L3
It is connected respectively with the collector of the emitter of the insulated gate bipolar transistor Q5 and the insulated gate bipolar transistor Q6
It connects；
The 2nd AC/DC rectification unit include insulated gate bipolar transistor Q7, insulated gate bipolar transistor Q8, absolutely
Edge grid bipolar junction transistor Q9, insulated gate bipolar transistor Q10, insulated gate bipolar transistor Q11 and insulated gate bipolar
Transistor Q12；The output end of the reactor L4 respectively with the emitter of the insulated gate bipolar transistor Q7 and it is described absolutely
The collector of edge grid bipolar junction transistor Q8 is connected；The output end of the reactor L5 is brilliant with the insulated gate bipolar respectively
The emitter of body pipe Q9 is connected with the collector of the insulated gate bipolar transistor Q10；The output end of the reactor L6
Respectively with the collector phase of the emitter of the insulated gate bipolar transistor Q11 and the insulated gate bipolar transistor Q12
Connection.
Optionally, first energy storage/filter unit includes the capacitor C1 and capacitor C2 being connected in parallel；The capacitor
One end of device C1 is separately connected the insulated gate bipolar transistor Q1, the insulated gate bipolar transistor Q3 and the insulation
The collector of grid bipolar junction transistor Q5；The other end of the capacitor C1 is separately connected the insulated gate bipolar transistor
The emitter of Q2, the insulated gate bipolar transistor Q4 and the insulated gate bipolar transistor Q6；
Second energy storage/filter unit includes the capacitor C3 and capacitor C4 being connected in parallel；The capacitor C3's
One end is separately connected the insulated gate bipolar transistor Q7, the insulated gate bipolar transistor Q9 and the insulated gate bipolar
The collector of transistor npn npn Q11；The other end of the capacitor C3 is separately connected the insulated gate bipolar transistor Q8, described
The emitter of insulated gate bipolar transistor Q10 and the insulated gate bipolar transistor Q12.
Optionally, the first DC/AC inversion unit includes insulated gate bipolar transistor Q13, insulated gate bipolar crystalline substance
Body pipe Q14, insulated gate bipolar transistor Q15, insulated gate bipolar transistor Q16, insulated gate bipolar transistor Q17 and absolutely
Edge grid bipolar junction transistor Q18；One end of the capacitor C2 is separately connected the insulated gate bipolar transistor Q13, described
The collector of insulated gate bipolar transistor Q15 and the insulated gate bipolar transistor Q17；The other end of the capacitor C2
It is separately connected the insulated gate bipolar transistor Q14, the insulated gate bipolar transistor Q16 and the insulated gate bipolar
The emitter of transistor Q18；
The 2nd DC/AC inversion unit include insulated gate bipolar transistor Q19, insulated gate bipolar transistor Q20,
Insulated gate bipolar transistor Q21, insulated gate bipolar transistor Q22, insulated gate bipolar transistor Q23 and insulated gate bipolar
Transistor npn npn Q24；It is double that one end of the capacitor C4 is separately connected the insulated gate bipolar transistor Q19, the insulated gate
The collector of bipolar transistor Q21 and the insulated gate bipolar transistor Q23；The other end of the capacitor C4 is separately connected
The insulated gate bipolar transistor Q20, the insulated gate bipolar transistor Q22 and the insulated gate bipolar transistor
The emitter of Q24.
Optionally, the first output filter unit includes reactor L7, reactor L8 and reactor L9；Described second is defeated
Filter unit includes reactor L10, reactor L11 and reactor L12 out；
The input terminal of the reactor L7 respectively with the emitter of the insulated gate bipolar transistor Q13 and the insulation
The collector of grid bipolar junction transistor Q14 is connected；The input terminal of the reactor L8 is brilliant with the insulated gate bipolar respectively
The emitter of body pipe Q15 is connected with the collector of the insulated gate bipolar transistor Q16；The input terminal of the reactor L9
Respectively with the collector phase of the emitter of the insulated gate bipolar transistor Q17 and the insulated gate bipolar transistor Q18
Connection；
The input terminal of the reactor L10 respectively with the emitter of the insulated gate bipolar transistor Q19 and it is described absolutely
The collector of edge grid bipolar junction transistor Q20 is connected；The input terminal of the reactor L11 respectively with the insulated gate bipolar
The emitter of transistor Q21 is connected with the collector of the insulated gate bipolar transistor Q22；The reactor L12's is defeated
Enter the end current collection with the emitter of the insulated gate bipolar transistor Q23 and the insulated gate bipolar transistor Q24 respectively
Pole is connected.
Optionally, the output isolation module is made of isolating transformer B2；R, s, t of the isolating transformer B2 is inputted
End uses delta connection mode；The r input terminal of the isolating transformer B2 respectively with the reactor L7 and the reactor
The output end of L10 is connected；The s input terminal of the isolating transformer B2 respectively with the reactor L8 and the reactor L11
Output end be connected；The t input terminal of the isolating transformer B2 is defeated with the reactor L9 and reactor L12 respectively
Outlet is connected；R, S, T output end of the isolating transformer B2 uses star-star connection mode.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The present invention provides a kind of high-power shore electric power system, and the high-power shore electric power system includes sequentially connected
Input control module, 500kW shore electric power modules in parallel module and output isolation module；The 500kW shore electric power mould group
Parallel module includes the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group in parallel.The high-power bank of the present invention
The topological structure that electric power-supply system uses is shunted by two 500kW shore electric power mould groups in parallel, in guarantee system
Under the premise of device safe and stable operation, the capacity of shore electric power can be effectively promoted, the need of large capacity load are preferably met
It asks, so that the adaptability of high-power shore electric power further enhances.And the topological structure of the high-power shore electric power system
Two shore electric power mould group parameter selections and the device selection of middle parallel connection are consistent, can reduce as far as possible due to device, internal resistance
The problems such as caused by the unbalanced problem of parallel branch, and then inhibit circulation, solve each parallel power list of traditional shore electric power
The problem of circulation is also easy to produce between member.
Furthermore in terms of control, the first DC/AC inversion unit and the 2nd DC/AC inversion unit are all made of PWM
Control controls signal by unified send, so that output voltage is synchronous, so as to further suppress circulation.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also mention according to the present invention
The attached drawing of confession obtains other attached drawings.
Fig. 1 is the topological diagram of high-power shore electric power system provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of high-power shore electric power systems, to solve each parallel power of traditional shore electric power
The problem that circulation and shore electric power capacity are limited is also easy to produce between unit.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the topological diagram of high-power shore electric power system provided by the invention.It is provided by the invention described referring to Fig. 1
High-power shore electric power system include sequentially connected input control module 1,500kW shore electric power modules in parallel module 2 and
Export isolation module 3；The 500kW shore electric power modules in parallel module 2 includes the first 500kW shore electric power mould group 21 in parallel
With the 2nd 500kW shore electric power mould group 22, it is equivalent to the shore electric power parallel connection by two 500kW, forms the high-power bank of 1MW
Power supply.
In the high-power shore electric power system, the input terminal and 380V/50Hz three-phase alternating current of the input control module 1
Power supply is connected；The output end of the input control module 1 respectively with the first 500kW shore electric power mould group 21 and described
The input terminal of two 500kW shore electric power mould groups 22 is connected；The first 500kW shore electric power mould group 21 and described second
The output end of 500kW shore electric power mould group 22 is connected with the input terminal of the output isolation module 3 respectively；The output isolation
The output end of module 3 exports 450V/60Hz three-phase alternating current.
Specifically, the first 500kW shore electric power mould group 21 include sequentially connected first input filter unit 211,
First AC/DC rectification unit 212, the first energy storage/filter unit 213, the first DC/AC inversion unit 214 and the first output filter
Wave unit 215；The 2nd 500kW shore electric power mould group 22 includes sequentially connected second input filter unit 221, second
AC/DC rectification unit 222, the second energy storage/filter unit 223, the 2nd DC/AC inversion unit 224 and the second output filtering are single
Member 225.
The output end of the input control module 1 is inputted with the first input filter unit 211 and described second respectively
The input terminal of filter unit 221 is connected.In the first 500kW shore electric power mould group 21, the first input filter unit
211 output end is connected with the input terminal of the first AC/DC rectification unit 212, the first AC/DC rectification unit 212
Output end be connected with the input terminal of first energy storage/filter unit 213；First energy storage/filter unit 213 it is defeated
Outlet is connected with the input terminal of the first DC/AC inversion unit 214；The output end of the first DC/AC inversion unit 214
It is connected with the input terminal of the first output filter unit 215.
In the 2nd 500kW shore electric power mould group 22, the output end of the second input filter unit 221 and described the
The input terminal of two AC/DC rectification units 222 is connected；The output end of the 2nd AC/DC rectification unit 222 and second storage
The input terminal of energy/filter unit 223 is connected；The output end of second energy storage/filter unit 223 and the 2nd DC/AC
The input terminal of inversion unit 224 is connected；The output end of the 2nd DC/AC inversion unit 224 and second output filter
The input terminal of unit 225 is connected.The output of the first output filter unit 215 and the second output filter unit 225
End is connected with the input terminal of the output isolation module 3 respectively.The output end of the output isolation module 3 exports 450V/
60Hz three-phase alternating current.
Specifically, the input control module 1 is for controlling the first input filter unit 211 and second input
The input of filter unit 221.Specifically, the input control module 1 includes circuit breaker Q F1, circuit breaker Q F2 and circuit breaker Q F3；
The input terminal of the circuit breaker Q F1, the circuit breaker Q F2 and the circuit breaker Q F3 are separately connected 380V/50Hz three-phase alternating current
A phase, B phase and the C phase in source.
The first input filter unit 211 and the second input filter unit 221 are respectively made of one group of reactor, are used
It is filtered in input voltage.The size of reactor need to cooperate circuit to be designed, but should ensure that first input filter
Unit 211 is consistent with the reactor parameter of corresponding position in the second input filter unit 221, such as reactor L1 and reactance
The parameter of device L4 is consistent, and reactor 2 is consistent with the parameter of reactor L5, and reactor L3 is consistent with the parameter of reactor L6.Specifically
, the first input filter unit 211 includes reactor L1, reactor L2 and reactor L3；The second input filter list
Member 221 includes reactor L4, reactor L5 and reactor L6.The input of the input terminal of the reactor L1 and the reactor L4
End is connected with the output end of the circuit breaker Q F1 respectively；The input of the input terminal of the reactor L2 and the reactor L5
End is connected with the output end of the circuit breaker Q F2 respectively；The input of the input terminal of the reactor L3 and the reactor L6
End is connected with the output end of the circuit breaker Q F3 respectively.
The first AC/DC rectification unit 212 and the 2nd AC/DC rectification unit 222 are respectively by 6 IGBT
The rectification circuit that (InsulatedGateBipolarTransistor, insulated gate bipolar transistor) is constituted is used for three-phase
AC rectification is direct current.Specifically, the first AC/DC rectification unit 212 include insulated gate bipolar transistor Q1, absolutely
Edge grid bipolar junction transistor Q2, insulated gate bipolar transistor Q3, insulated gate bipolar transistor Q4, insulated gate bipolar crystal
Pipe Q5 and insulated gate bipolar transistor Q6.The output end of the reactor L1 respectively with the insulated gate bipolar transistor Q1
Emitter be connected with the collector of the insulated gate bipolar transistor Q2；The output end of the reactor L2 respectively with institute
The emitter for stating insulated gate bipolar transistor Q3 is connected with the collector of the insulated gate bipolar transistor Q4；The electricity
The output end of anti-device L3 respectively with the emitter and the insulated gate bipolar transistor of the insulated gate bipolar transistor Q5
The collector of Q6 is connected.
The 2nd AC/DC rectification unit 222 includes insulated gate bipolar transistor Q7, insulated gate bipolar transistor
Q8, insulated gate bipolar transistor Q9, insulated gate bipolar transistor Q10, insulated gate bipolar transistor Q11 and insulated gate are double
Bipolar transistor Q12；The output end of the reactor L4 respectively with the emitter of the insulated gate bipolar transistor Q7 and institute
The collector for stating insulated gate bipolar transistor Q8 is connected；The output end of the reactor L5 respectively with the insulated gate bipolar
The emitter of transistor npn npn Q9 is connected with the collector of the insulated gate bipolar transistor Q10；The reactor L6's is defeated
The outlet current collection with the emitter of the insulated gate bipolar transistor Q11 and the insulated gate bipolar transistor Q12 respectively
Pole is connected.
The grid of the insulated gate bipolar transistor Q1~Q6 and the insulated gate bipolar transistor Q7~Q12 are equal
It is controlled using PWM, the first AC/DC rectification unit 212 and corresponding position in the 2nd AC/DC rectification unit 222
IGBT control parameter is consistent, such as the control of the insulated gate bipolar transistor Q1 and the insulated gate bipolar transistor Q7
Parameter is consistent, and the insulated gate bipolar transistor Q2 is consistent with the control parameter of the insulated gate bipolar transistor Q8, with
This analogizes.
First energy storage/filter unit 213 is two by being connected across 212 output end of the first AC/DC rectification unit
A capacitor composition, for realizing energy storage and filter function.The capacitance size of the capacitor needs that circuit is cooperated to be designed,
But it should ensure that the capacitor of corresponding position in first energy storage/filter unit 213 and second energy storage/filter unit 223
Parameter is consistent.Specifically, first energy storage/filter unit 213 includes the capacitor C1 and capacitor C2 being connected in parallel；It is described
One end of capacitor C1 is separately connected the insulated gate bipolar transistor Q1, the insulated gate bipolar transistor Q3 and described
The collector of insulated gate bipolar transistor Q5；The other end of the capacitor C1 is separately connected the insulated gate bipolar crystal
The emitter of pipe Q2, the insulated gate bipolar transistor Q4 and the insulated gate bipolar transistor Q6.
Second energy storage/filter unit 223 includes the capacitor C3 and capacitor C4 being connected in parallel；The capacitor C3
To be separately connected the insulated gate bipolar transistor Q7, the insulated gate bipolar transistor Q9 and the insulated gate double for one end
The collector of bipolar transistor Q11；The other end of the capacitor C3 is separately connected the insulated gate bipolar transistor Q8, institute
State the emitter of insulated gate bipolar transistor Q10 and the insulated gate bipolar transistor Q12.
The first DC/AC inversion unit 214 is respectively to be made of 6 IGBT with the 2nd DC/AC inversion unit 224
Inverter circuit, for by DC inverter be three-phase alternating current.Specifically, the first DC/AC inversion unit 214 includes exhausted
Edge grid bipolar junction transistor Q13, insulated gate bipolar transistor Q14, insulated gate bipolar transistor Q15, insulated gate bipolar
Transistor Q16, insulated gate bipolar transistor Q17 and insulated gate bipolar transistor Q18；Distinguish one end of the capacitor C2
Connect the insulated gate bipolar transistor Q13, the insulated gate bipolar transistor Q15 and the insulated gate bipolar crystal
The collector of pipe Q17；The other end of the capacitor C2 is separately connected the insulated gate bipolar transistor Q14, the insulation
The emitter of grid bipolar junction transistor Q16 and the insulated gate bipolar transistor Q18.
The 2nd DC/AC inversion unit 224 includes insulated gate bipolar transistor Q19, insulated gate bipolar transistor
Q20, insulated gate bipolar transistor Q21, insulated gate bipolar transistor Q22, insulated gate bipolar transistor Q23 and insulated gate
Bipolar junction transistor Q24；One end of the capacitor C4 is separately connected the insulated gate bipolar transistor Q19, the insulation
The collector of grid bipolar junction transistor Q21 and the insulated gate bipolar transistor Q23；The other end of the capacitor C4 is distinguished
Connect the insulated gate bipolar transistor Q20, the insulated gate bipolar transistor Q22 and the insulated gate bipolar crystal
The emitter of pipe Q24.
The grid of the insulated gate bipolar transistor Q13~Q18 and the insulated gate bipolar transistor Q19~Q24
Pole is all made of PWM control, sends pwm control signal by unified, so that output voltage is synchronous, and then inhibits circulation.Described
One DC/AC inversion unit 214 is consistent with the IGBT control parameter of corresponding position in the 2nd DC/AC inversion unit 224, such as
The insulated gate bipolar transistor Q13 is consistent with the control parameter of the insulated gate bipolar transistor Q19, the insulated gate
Bipolar junction transistor Q15 is consistent with the control parameter of the insulated gate bipolar transistor Q21, and so on.
Ship electric system uses the three-phase alternating current of 440V/60HZ, the 380V/50Hz three-phase alternating current provided with power grid
It mismatches, cannot directly use, through the invention AC/DC rectification unit, energy storage/filter unit and DC/AC inversion unit
Transformation, may be implemented the variation of electric energy voltage and frequency, by the 380V/50Hz three-phase alternating current of input, is changed into 450V/60Hz
Three-phase alternating current electricity output, to meet the needs of shipborne equipment.
The first output filter unit 215 and the second output filter unit 225 are made of one group of reactor respectively,
Three-phase alternating current for exporting to DC/AC inversion unit is filtered.Specifically, the first output filter unit 215 wraps
Include reactor L7, reactor L8 and reactor L9；The second output filter unit 225 includes reactor L10, reactor L11
With reactor L12.The size setting of reactor is related to circuit whole design in the output filtering parallel module 4, but should protect
It is consistent with the reactor parameter of corresponding position in the second output filter unit 225 to demonstrate,prove the first output filter unit 215,
Such as reactor L7 is consistent with the parameter of reactor L10, reactor 8 is consistent with the parameter of reactor L11, reactor L9 and reactance
The parameter of device L12 is consistent.
The input terminal of the reactor L7 respectively with the emitter of the insulated gate bipolar transistor Q13 and the insulation
The collector of grid bipolar junction transistor Q14 is connected；The input terminal of the reactor L8 is brilliant with the insulated gate bipolar respectively
The emitter of body pipe Q15 is connected with the collector of the insulated gate bipolar transistor Q16；The input terminal of the reactor L9
Respectively with the collector phase of the emitter of the insulated gate bipolar transistor Q17 and the insulated gate bipolar transistor Q18
Connection.
The input terminal of the reactor L10 respectively with the emitter of the insulated gate bipolar transistor Q19 and it is described absolutely
The collector of edge grid bipolar junction transistor Q20 is connected；The input terminal of the reactor L11 respectively with the insulated gate bipolar
The emitter of transistor Q21 is connected with the collector of the insulated gate bipolar transistor Q22；The reactor L12's is defeated
Enter the end current collection with the emitter of the insulated gate bipolar transistor Q23 and the insulated gate bipolar transistor Q24 respectively
Pole is connected.
In the present invention, the device parameters selection of corresponding part is consistent in unit in parallel or mould group, it is possible to reduce and receipts or other documents in duplicate
Member due to parameter unbalance caused by circulation.Currently, the capacity that single inverter module can export is limited, and the present invention is logical
The capacity of shore electric power system can be promoted by crossing mode in parallel, reach the high-power of 1MW.In addition, the list of each parallel connection
Member or mould group can also independently realize transformation of electrical energy function, transplant and extend convenient for module.
After the output end of the first output filter unit 215 is in parallel with the output end of the second output filtering 225, with
The input terminal of the output isolation module 3 is connected.The output isolation module 3 is made of isolating transformer B2, in bank
Electrical isolation is formed between electric power-supply system and load.Tri- input terminals of r, s, t of the isolating transformer B2 use △ shape (three
It is angular) mode of connection；R, S, T output end of the isolating transformer B2 uses Y shape (star) mode of connection.The isolation transformation
The r input terminal of device B2 is connected with the output end of the output end of the reactor L7 and the reactor L10 respectively；The isolation
The s input terminal of transformer B2 is connected with the output end of the output end of the reactor L8 and the reactor L11 respectively；It is described
The t input terminal of isolating transformer B2 is connected with the output end of the output end of the reactor L9 and the reactor L12 respectively.
There are four output end R, S, T, N for the isolating transformer B2 tool, for exporting the three-phase alternating current of 440V/60HZ.
High-power shore electric power system provided by the invention, solve the difference due to parallel power unit component characteristic,
Different, the different units of load connection line length export power caused by internal impedance has differences and output current unevenness point, cause
The problem of circulation is generated between each parallel power unit.In terms of circuit topology, the topology of the high-power shore electric power system
The parameter selection of two shore electric power mould groups in parallel in structure, device selection are consistent, can reduce as far as possible due to device, interior
The unbalanced problem of parallel branch caused by the problems such as resistance, and then inhibit circulation.In terms of control, DC/AC inversion unit is equal
It is controlled using PWM, signal is controlled by unified send, so that output voltage is synchronous, to further suppress circulation.
High-power shore electric power system provided by the invention, also further solves traditional shore electric power electric topology structure
The problem of lower capacity boost hardly possible.The present invention is shunted using mould group in parallel, in the premise for guaranteeing device safe and stable operation
Under, the capacity of shore electric power can be effectively promoted, to preferably meet the needs of large capacity load, so that high-power bank electricity is electric
The adaptability of source system further enhances.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the device of the invention and its core concept；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of high-power shore electric power system, which is characterized in that the high-power shore electric power system includes: sequentially connected
Input control module, 500kW shore electric power modules in parallel module and output isolation module；The 500kW shore electric power mould group
Parallel module includes the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group in parallel；
The input terminal of the input control module is connected with 380V/50HZ three-phase alternating-current supply；The input control module
Output end is connected with the input terminal of the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group respectively
It connects；The output end of the first 500kW shore electric power mould group and the 2nd 500kW shore electric power mould group respectively with the output
The input terminal of isolation module is connected；The output end of the output isolation module exports 450V/60Hz three-phase alternating current.
2. high-power shore electric power system according to claim 1, which is characterized in that the first 500kW shore electric power
Mould group includes sequentially connected first input filter unit, the first AC/DC rectification unit, the first energy storage/filter unit, first
DC/AC inversion unit and the first output filter unit；The 2nd 500kW shore electric power mould group includes sequentially connected second
Input filter unit, the 2nd AC/DC rectification unit, the second energy storage/filter unit, the 2nd DC/AC inversion unit and second are defeated
Filter unit out；
The output end of the input control module respectively with the first input filter unit and the second input filter unit
Input terminal be connected；The input terminal phase of the output end of the first input filter unit and the first AC/DC rectification unit
Connection, the output end of the first AC/DC rectification unit are connected with first energy storage/filter unit input terminal；It is described
First energy storage/filter unit output end is connected with the input terminal of the first DC/AC inversion unit；First DC/AC
The output end of inversion unit is connected with the input terminal of the first output filter unit；The second input filter unit it is defeated
Outlet is connected with the input terminal of the 2nd AC/DC rectification unit, the output end of the 2nd AC/DC rectification unit with it is described
Second energy storage/filter unit input terminal is connected；Second energy storage/filter unit output end and the 2nd DC/AC
The input terminal of inversion unit is connected；The output end of the 2nd DC/AC inversion unit and described second exports filter unit
Input terminal is connected；It is described first output filter unit and it is described second output filter unit output end respectively with the output
The input terminal of isolation module is connected.
3. high-power shore electric power system according to claim 2, which is characterized in that the input control module includes disconnected
Road device QF1, circuit breaker Q F2 and circuit breaker Q F3；The input of the circuit breaker Q F1, the circuit breaker Q F2 and the circuit breaker Q F3
End is separately connected the A phase, B phase and C phase of the 380V/50Hz three-phase alternating-current supply.
4. high-power shore electric power system according to claim 3, which is characterized in that the first input filter unit packet
Include reactor L1, reactor L2 and reactor L3；The second input filter unit includes reactor L4, reactor L5 and reactance
Device L6；The input terminal of the reactor L1 and the reactor L4 are connected with the output end of the circuit breaker Q F1 respectively；It is described
The input terminal of reactor L2 and the reactor L5 are connected with the output end of the circuit breaker Q F2 respectively；The reactor L3
It is connected respectively with the output end of the circuit breaker Q F3 with the input terminal of the reactor L6.
5. high-power shore electric power system according to claim 4, which is characterized in that the first AC/DC rectification unit
Including insulated gate bipolar transistor Q1, insulated gate bipolar transistor Q2, insulated gate bipolar transistor Q3, insulated gate bipolar
Transistor npn npn Q4, insulated gate bipolar transistor Q5 and insulated gate bipolar transistor Q6；The output end of the reactor L1 point
It is not connected with the collector of the emitter of the insulated gate bipolar transistor Q1 and the insulated gate bipolar transistor Q2；
The output end of the reactor L2 respectively with the emitter and the insulated gate bipolar of the insulated gate bipolar transistor Q3
The collector of transistor Q4 is connected；The output end of the reactor L3 hair with the insulated gate bipolar transistor Q5 respectively
Emitter-base bandgap grading is connected with the collector of the insulated gate bipolar transistor Q6；
The 2nd AC/DC rectification unit includes insulated gate bipolar transistor Q7, insulated gate bipolar transistor Q8, insulated gate
Bipolar junction transistor Q9, insulated gate bipolar transistor Q10, insulated gate bipolar transistor Q11 and insulated gate bipolar crystal
Pipe Q12；The output end of the reactor L4 respectively with the emitter and the insulated gate of the insulated gate bipolar transistor Q7
The collector of bipolar junction transistor Q8 is connected；The output end of the reactor L5 respectively with the insulated gate bipolar transistor
The emitter of Q9 is connected with the collector of the insulated gate bipolar transistor Q10；The output end of the reactor L6 is distinguished
It is connected with the collector of the emitter of the insulated gate bipolar transistor Q11 and the insulated gate bipolar transistor Q12.
6. high-power shore electric power system according to claim 5, which is characterized in that first energy storage/filter unit
Including the capacitor C1 and capacitor C2 being connected in parallel；It is brilliant that one end of the capacitor C1 is separately connected the insulated gate bipolar
The collector of body pipe Q1, the insulated gate bipolar transistor Q3 and the insulated gate bipolar transistor Q5；The capacitor
The other end of C1 is separately connected the insulated gate bipolar transistor Q2, the insulated gate bipolar transistor Q4 and the insulation
The emitter of grid bipolar junction transistor Q6；
Second energy storage/filter unit includes the capacitor C3 and capacitor C4 being connected in parallel；One end of the capacitor C3
It is separately connected the insulated gate bipolar transistor Q7, the insulated gate bipolar transistor Q9 and the insulated gate bipolar is brilliant
The collector of body pipe Q11；The other end of the capacitor C3 is separately connected the insulated gate bipolar transistor Q8, the insulation
The emitter of grid bipolar junction transistor Q10 and the insulated gate bipolar transistor Q12.
7. high-power shore electric power system according to claim 6, which is characterized in that the first DC/AC inversion unit
Including insulated gate bipolar transistor Q13, insulated gate bipolar transistor Q14, insulated gate bipolar transistor Q15, insulated gate
Bipolar junction transistor Q16, insulated gate bipolar transistor Q17 and insulated gate bipolar transistor Q18；The one of the capacitor C2
End is separately connected the insulated gate bipolar transistor Q13, the insulated gate bipolar transistor Q15 and the insulated gate bipolar
The collector of transistor npn npn Q17；The other end of the capacitor C2 is separately connected the insulated gate bipolar transistor Q14, institute
State the emitter of insulated gate bipolar transistor Q16 and the insulated gate bipolar transistor Q18；
The 2nd DC/AC inversion unit includes insulated gate bipolar transistor Q19, insulated gate bipolar transistor Q20, insulation
Grid bipolar junction transistor Q21, insulated gate bipolar transistor Q22, insulated gate bipolar transistor Q23 and insulated gate bipolar are brilliant
Body pipe Q24；One end of the capacitor C4 is separately connected the insulated gate bipolar transistor Q19, the insulated gate bipolar
The collector of transistor Q21 and the insulated gate bipolar transistor Q23；The other end of the capacitor C4 is separately connected described
Insulated gate bipolar transistor Q20, the insulated gate bipolar transistor Q22 and the insulated gate bipolar transistor Q24's
Emitter.
8. high-power shore electric power system according to claim 7, which is characterized in that the first output filter unit packet
Include reactor L7, reactor L8 and reactor L9；The second output filter unit includes reactor L10, reactor L11 and electricity
Anti- device L12；
The input terminal of the reactor L7 is double with the emitter of the insulated gate bipolar transistor Q13 and the insulated gate respectively
The collector of bipolar transistor Q14 is connected；The input terminal of the reactor L8 respectively with the insulated gate bipolar transistor
The emitter of Q15 is connected with the collector of the insulated gate bipolar transistor Q16；The input terminal of the reactor L9 is distinguished
It is connected with the collector of the emitter of the insulated gate bipolar transistor Q17 and the insulated gate bipolar transistor Q18；
The input terminal of the reactor L10 respectively with the emitter and the insulated gate of the insulated gate bipolar transistor Q19
The collector of bipolar junction transistor Q20 is connected；The input terminal of the reactor L11 respectively with the insulated gate bipolar crystal
The emitter of pipe Q21 is connected with the collector of the insulated gate bipolar transistor Q22；The input terminal of the reactor L12
Respectively with the collector phase of the emitter of the insulated gate bipolar transistor Q23 and the insulated gate bipolar transistor Q24
Connection.
9. high-power shore electric power system according to claim 8, which is characterized in that the output isolation module is by being isolated
Transformer B2 composition；R, s, t input terminal of the isolating transformer B2 uses delta connection mode；The isolating transformer B2
R input terminal be connected respectively with the output end of the reactor L7 and the reactor L10；The s of the isolating transformer B2
Input terminal is connected with the output end of the reactor L8 and the reactor L11 respectively；The t of the isolating transformer B2 is inputted
End is connected with the output end of the reactor L9 and the reactor L12 respectively；R, S, T of the isolating transformer B2 is exported
End uses star-star connection mode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110868095A (en) * | 2019-11-15 | 2020-03-06 | 中国舰船研究设计中心 | DC-AC inverter for ship regional power distribution |
| CN112260109A (en) * | 2020-10-28 | 2021-01-22 | 西安中车永电电气有限公司 | High-protection double-electric shore power box |
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| CN110868095A (en) * | 2019-11-15 | 2020-03-06 | 中国舰船研究设计中心 | DC-AC inverter for ship regional power distribution |
| CN110868095B (en) * | 2019-11-15 | 2021-08-10 | 中国舰船研究设计中心 | DC-AC inverter for ship regional power distribution |
| CN112260109A (en) * | 2020-10-28 | 2021-01-22 | 西安中车永电电气有限公司 | High-protection double-electric shore power box |
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Application publication date: 20190308 |