CN103532138A - Intelligent high-voltage shore power supply system for boat on dock - Google Patents
Intelligent high-voltage shore power supply system for boat on dock Download PDFInfo
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- CN103532138A CN103532138A CN201310496972.XA CN201310496972A CN103532138A CN 103532138 A CN103532138 A CN 103532138A CN 201310496972 A CN201310496972 A CN 201310496972A CN 103532138 A CN103532138 A CN 103532138A
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses an intelligent high-voltage shore power supply system for a boat on a dock. The intelligent high-voltage shore power supply system comprises a bi-directional power transmission sub-system, a shore/boat synchronous non-disturbance switching sub-system, a current converter, an energy-storing sub-system, a high-voltage variable-frequency power supply sub-system and a dynamic reactive power compensation sub-system, wherein the current converter and the energy-storing sub-system share direct-current bus voltage and are connected to the wire-inlet side of the system by being connected with an electric reactor; the bi-directional power transmission sub-system comprises a transformer and a bi-directional rectifier; the current converter and the energy-storing sub-system realize the phase and amplitude of current to control the flowing directions of active power and reactive power; the high-voltage variable-frequency power supply sub-system is used for converting a grid side power supply into a load side power supply and tracing the frequency and the amplitude of a power supply on the boat at the same time; the dynamic reactive power compensation sub-system realizes reactive compensation for loads carried on the power supply system and reactive power compensation for other loads carried on the same bus; the shore/boat synchronous non-disturbance switching sub-system is matched with the high-voltage variable-frequency power supply sub-system to realize non-disturbance conversion between a shore power supply system and a boat power supply system.
Description
Technical field
The present invention relates to ship power supply systems technology field, specifically a kind of harbour Intelligent high-pressure marine shore power system.
Background technology
Along with the fast development of world shipping industry, boats and ships pollution on the environment is on the rise, and especially during alongside, the discharge of its boats and ships car subsidiary engine has caused larger impact to place, harbour urban environment.The marine auxiliary that reaches port generating is one of harbour and even place urban air pollution main source, in order to tackle this problem ，Ge state, is all trying to explore.On the other hand, at present China has become world shipbuilding big country, and increasing countries and regions are ordered in the shipyard of China and made the various boats and ships that meet its standard and frequency, voltage request, and keep in repair various boats and ships.When carrying out Ship Building and Repairing, on ship, the equipment of a large amount of equipment all needs 60Hz Power supply normally to use.Because China's mains supply supply frequency standard is 50Hz, aboard ship generator is not before normally coming into operation, and these need the equipment of 60Hz Power supply, must will have a kind of power supply of the system of electricity with it coupling to power.In order to solve the problem of this two aspect, a kind of electric power system on the bank of high-quality frequency-and voltage-stabilizing (shore electric power peculiar to vessel) has been subject to paying close attention to widely.But in existing electric power system on the bank, busbar voltage is the low pressure of 0.4kv mostly, on ship, transformer becomes the power supply matching with load, this low pressure or mesohigh power supply will be guided to needs a lot of root thick cables on ship, cost of idleness, and also have a lot of interfaces, after beaching, attended operation is complicated; In the electric power system of existing high pressure, frequency conversion submodule adopts standalone feature system integration pattern, hardware size is large, system bulk is larger, stability and later maintenance cost to system operation all have a certain impact, have is exactly that existing high pressure is gone on board in technology and the idle of load do not compensated again, the meritorious energy load not being poured in down a chimney is stored, and makes grid side power factor lower.Therefore be necessary to provide a kind of with compensation, have the shore electric power system of the high pressure of stored energy, improve grid side power factor, and reduce the operation cost of whole system.
Summary of the invention
The object of the invention is to: the high-voltage intelligent shore electric power system that a kind of band reactive power compensation (SVG) is provided and can stores active power is harbour Intelligent high-pressure marine shore power system, it is little that this intelligent system has volume, easy to maintenance, can improve the advantages such as grid side power factor.
The present invention realizes like this, an Intelligent high-pressure marine shore power system, it comprises bidirectional power transmission subsystem (11), current transformer and energy storage subsystem (12), high-voltage variable frequency power source subsystem (13), dynamic passive compensation subsystem (14), the synchronous undisturbed handover subsystem of bank/ship (15); Bidirectional power transmission subsystem (11) comprises transformer, biphase rectification device, this transformer input side joint high-voltage fence, and this biphase rectification device is realized the two-way control to active power stream according to the height of direct voltage; Current transformer and energy storage subsystem (12) are for realizing the phase place of electric current and amplitude to control the flow direction of active power and reactive power; High-voltage variable frequency power source subsystem (13) is the conversion to load-side 6.6kV/60Hz power supply for grid side 10kV/50Hz power supply, carries out frequency and the amplitude tracking function of ship power source simultaneously, to realize the undisturbed handoff functionality of duplicate supply; Dynamic passive compensation subsystem (14) is for realizing the load-carrying reactive power compensation of this power-supply system, simultaneously in same bus with the reactive power compensation of other load; The synchronous undisturbed handover subsystem of bank/ship (15), for coordinating high-voltage variable frequency power source subsystem (13) to realize on the bank electric power system bumpless transfer in electric power system and ship, just needn't be shut down load and can be realized electrical source exchange; Current transformer and energy storage subsystem (12), high-voltage variable frequency power source subsystem (13), dynamic passive compensation subsystem (14) general DC busbar voltage, be access to system inlet wire side by linked reactor.
As the further improvement of such scheme, current transformer and energy storage subsystem element (12) are by three phase compositions, and each forms by six grades of H bridge circuits, and the busbar voltage of every one-level H bridge circuit is supplied with without harmonic wave Split winding transformer by prime.
Harbour Intelligent high-pressure marine shore power system of the present invention, current transformer and energy storage subsystem (INV& ES), high-voltage variable frequency power source subsystem (HVP) and the large main functional modules general DC busbar voltage of dynamic passive compensation subsystem (SVG) three, by linked reactor, be access to system inlet wire side, this mode of connection can not cause system circulation, blocked the harmonic current path of system simultaneously, make device to system without any harmful effect; Compare standalone feature system integration pattern, greatly reduce hardware system scale, reduce whole system volume, at aspects such as system manufacturability, easy care, low costs, there is the incomparable advantage of other scheme.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of harbour Intelligent high-pressure marine shore power system of the present invention;
Fig. 2 is the main circuit structure corresponding with Fig. 1.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As Fig. 1 shows, harbour Intelligent high-pressure marine shore power system is that intelligent power supply system comprises bidirectional power transmission subsystem (DP) 11, current transformer and energy storage subsystem (INV& ES) 12, the five large subsystems such as high-voltage variable frequency power source subsystem (HVP) 13, dynamic passive compensation subsystem (SVG) 14, the synchronous undisturbed handover subsystem 15 of bank/ship.Sketching respectively each subsystem below forms and function.
Bidirectional power transmission subsystem (DP) 11 mainly consists of transformer and biphase rectification device, transformer input side joint high-voltage fence, isolation power supply for a plurality of rectifiers, biphase rectification device can be realized the two-way control to active power stream according to the height of direct voltage, that is: (1) causes direct voltage to reduce when load is started working, and this subsystem will be controlled active power and flow from electrical network to load-side; (2) when potential energy load declines or slow down, motor, in generating state, can cause direct voltage to raise, and now system control active power flows from load-side to grid side, realizes power and effectively utilizes; (3) when in system, meritorious demand is larger, the energy that system can be controlled in energy-storage travelling wave tube is released to DC side, now also can realize active power flowing to system side.Bidirectional power transmission subsystem (DP) realizes the two-way control to power stream according to the height of direct voltage, in its main circuit, adopt the Split winding transformer of perfect harmony, the harmonic wave that rectifying part in follow-up unsteady flow link is produced is thoroughly blocked, make inlet wire partly not have harmonic component, further guarantee system cleaning.
Current transformer and energy storage subsystem (INV& ES) the 12nd, the unsteady flow part of whole system, mainly consists of power device and drive circuit, also comprises in addition energy-storage travelling wave tube 121.This subsystem is mainly controlled opening of power electronic device by rational control strategy and is turn-offed to realize phase place and the amplitude of electric current, thereby controls the flow direction of active power and reactive power.Simultaneously according to the conditions of demand of whole system active power, decide rushing/discharge of energy-storage travelling wave tube 121, so that the active power of whole system effectively utilizes, and grid side active power is flowed gently.Bidirectional power transmission subsystem (DP) 12 realizes the two-way control to power stream according to the height of direct voltage, in its main circuit, adopt the Split winding transformer of perfect harmony, the harmonic wave that rectifying part in follow-up unsteady flow link is produced is thoroughly blocked, make inlet wire partly not have harmonic component, further guarantee system cleaning.
High-voltage variable frequency power source subsystem (HVP) the 13rd, the key function module of whole system, main target is to realize grid side 10kV/50Hz power supply to the conversion of load-side 6.6kV/60Hz power supply, carry out frequency and the amplitude tracking function of ship power source, to realize the undisturbed handoff functionality (this subsystem can be adjusted output voltage and frequency according to ship power source demand) of duplicate supply simultaneously.High-voltage variable frequency power source subsystem (HVP) 13 is realized grid side power supply and is adjusted output voltage and frequency according to ship power source demand
Dynamic passive compensation subsystem (SVG) the 14th, the another main functional modules in system, major function is to realize the load-carrying reactive power compensation of this power-supply system, simultaneously also can in same bus with the reactive power compensation of other load.The existence of this functional module needn't be provided by grid side whole system reactive power, and making the idle supply of grid side is zero, and power factor is 1, greatly improves the utilance of power system capacity, strengthens the stability of system simultaneously.Dynamic passive compensation subsystem (SVG) 14 is realized the load-carrying reactive power compensation of this power-supply system, also realize simultaneously in same bus with the reactive power compensation of other load.
The synchronous undisturbed handover subsystem 15 of bank/ship is mainly comprised of circuit breaker and linked reactor; can coordinate HVP subsystem to realize on the bank electric power system bumpless transfer in electric power system and ship; load just needn't be shut down and can realize electrical source exchange, greatly improve ease for use, the reliability of system.The synchronous undisturbed handover subsystem 15 of bank/ship realizes on the bank electric power system bumpless transfer in electric power system and ship, makes on ship each power consumption equipment exit and can complete and the switching of power supply on the bank.
Current transformer and energy storage subsystem (INV& ES) 12, high-voltage variable frequency power source subsystem (HVP) 13 and the large main functional modules general DC busbar voltage of dynamic passive compensation subsystem (SVG) 14 3, by linked reactor, be access to system inlet wire side, this mode of connection can not cause system circulation, blocked the harmonic current path of system simultaneously, make device to system without any harmful effect; Compare standalone feature system integration pattern, greatly reduce hardware system scale, reduce whole system volume, at aspects such as system manufacturability, easy care, low costs, there is the incomparable advantage of other scheme.
As shown in Figure 2, current transformer and energy storage subsystem Unit 12 are by three phase compositions, each forms by six grades of (or cascade progression being set flexibly according to output voltage) H bridge circuits, the busbar voltage of every one-level H bridge circuit is supplied with by the perfect harmony Split winding transformer of prime, this main circuit structure has been evaded the expensive of pure high tension apparatus and the excessive disadvantage of input and output harmonic voltage, there are high stability and reliability, extensive use in multiple vertical product.
In figure, can also see, current transformer and energy storage subsystem 12, high-voltage variable frequency power source subsystem 13, dynamic passive compensation subsystem 14 be general DC busbar in the H bridge circuit of institute's cascade all, this has just simplified system scale greatly, and realizes at an easy rate the Collaborative Control between subsystems.
Specific to active power, the meritorious demand of load I-load IV all can be provided by grid side, this is also working condition during without intelligent power supply system, and be equipped with after intelligent power supply system, required meritorious can being provided by grid side in load I, can provide all or part of by the electric energy in energy-storage units 121 according to system requirements, if provide required gaining merit in load I to still have surplus simultaneously, also can offer other load in our factory simultaneously.So just can realize load and pour in down a chimney effective collection of energy, and discharge when load needs, to reach peak clipping, add the function of paddy, avoid again the waste of active power simultaneously.
Specific to reactive power, dynamic passive compensation subsystem (SVG) 14 is realized the reactive power compensation of the bringing onto load I2 of this power-supply system institute, also realize simultaneously in same bus with the reactive power compensation of other load 3,4,5.The function that so just to have realized power factor of electric network be 1.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a harbour Intelligent high-pressure marine shore power system, is characterized in that: it comprises bidirectional power transmission subsystem (11), current transformer and energy storage subsystem (12), high-voltage variable frequency power source subsystem (13), dynamic passive compensation subsystem (14), the synchronous undisturbed handover subsystem of bank/ship (15); Bidirectional power transmission subsystem (11) comprises transformer, biphase rectification device, this transformer input side joint high-voltage fence, and this biphase rectification device is realized the two-way control to active power stream according to the height of direct voltage; Current transformer and energy storage subsystem (12) are for realizing the phase place of electric current and amplitude to control the flow direction of active power and reactive power; High-voltage variable frequency power source subsystem (13) is the conversion to load-side 6.6kV/60Hz power supply for grid side 10kV/50Hz power supply, carries out frequency and the amplitude tracking function of ship power source simultaneously, to realize the undisturbed handoff functionality of duplicate supply; Dynamic passive compensation subsystem (14) is for realizing the load-carrying reactive power compensation of this power-supply system, simultaneously in same bus with the reactive power compensation of other load; The synchronous undisturbed handover subsystem of bank/ship (15), for coordinating high-voltage variable frequency power source subsystem (13) to realize on the bank electric power system bumpless transfer in electric power system and ship, just needn't be shut down load and can be realized electrical source exchange; Current transformer and energy storage subsystem (12), high-voltage variable frequency power source subsystem (13), dynamic passive compensation subsystem (14) general DC busbar voltage, be access to system inlet wire side by linked reactor.
2. harbour Intelligent high-pressure marine shore power system as claimed in claim 1, it is characterized in that: current transformer and energy storage subsystem element (12) are by three phase compositions, each forms by six grades of H bridge circuits, and the busbar voltage of every one-level H bridge circuit is supplied with without harmonic wave Split winding transformer by prime.
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| CN201310496972.XA CN103532138A (en) | 2013-10-21 | 2013-10-21 | Intelligent high-voltage shore power supply system for boat on dock |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825277A (en) * | 2014-02-24 | 2014-05-28 | 广州航海学院 | Intelligent shore power system based on shore control loop current |
| CN103996986A (en) * | 2014-06-09 | 2014-08-20 | 安徽赛瑞储能设备有限公司 | Box type energy storage transformer substation structure |
| CN104362620A (en) * | 2014-10-28 | 2015-02-18 | 三峡大学 | Shore power system for gas ship |
| CN104409988A (en) * | 2014-11-28 | 2015-03-11 | 南通明德重工有限公司 | Shipborne double-electricity-system shore power box |
| CN104485663A (en) * | 2014-12-08 | 2015-04-01 | 深圳市科陆变频器有限公司 | Multi-split shore power system and grid connection method |
| CN105000160A (en) * | 2015-08-12 | 2015-10-28 | 上海船舶研究设计院 | Power supply system for ship bow equipment |
| CN105262142A (en) * | 2015-10-29 | 2016-01-20 | 张家港荣源电气有限公司 | Automatic parallel operation control method for shore power variable-frequency power supply |
| CN105305449A (en) * | 2015-11-26 | 2016-02-03 | 上海华艾软件股份有限公司 | Ship shore power system |
| CN105790605A (en) * | 2014-12-19 | 2016-07-20 | 力博特公司 | Rectifier assembly and uninterruptible power supply device with rectifier assembly |
| CN106628096A (en) * | 2016-11-10 | 2017-05-10 | 南京南瑞继保电气有限公司 | Shore power supply system and grid-connection control method thereof |
| TWI606358B (en) * | 2016-05-12 | 2017-11-21 | Line voltage drop estimation system for ship shore connection | |
| CN108336763A (en) * | 2018-02-08 | 2018-07-27 | 澄瑞电力科技（上海）有限公司 | The parallel method of H bridge cascade connection type shore electric powers based on decoupled active and reactive control |
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| CN103825277B (en) * | 2014-02-24 | 2016-03-30 | 广州航海学院 | Based on the intelligent bank electric system of bank control circulation |
| CN103825277A (en) * | 2014-02-24 | 2014-05-28 | 广州航海学院 | Intelligent shore power system based on shore control loop current |
| CN103996986A (en) * | 2014-06-09 | 2014-08-20 | 安徽赛瑞储能设备有限公司 | Box type energy storage transformer substation structure |
| CN104362620A (en) * | 2014-10-28 | 2015-02-18 | 三峡大学 | Shore power system for gas ship |
| CN104409988A (en) * | 2014-11-28 | 2015-03-11 | 南通明德重工有限公司 | Shipborne double-electricity-system shore power box |
| CN104409988B (en) * | 2014-11-28 | 2016-07-06 | 南通润力机械制造有限公司 | Double; two electricity peculiar to vessel shore connection box processed |
| CN104485663A (en) * | 2014-12-08 | 2015-04-01 | 深圳市科陆变频器有限公司 | Multi-split shore power system and grid connection method |
| CN105790605A (en) * | 2014-12-19 | 2016-07-20 | 力博特公司 | Rectifier assembly and uninterruptible power supply device with rectifier assembly |
| CN105000160A (en) * | 2015-08-12 | 2015-10-28 | 上海船舶研究设计院 | Power supply system for ship bow equipment |
| CN105000160B (en) * | 2015-08-12 | 2017-04-26 | 上海船舶研究设计院 | Power supply system for ship bow equipment |
| CN105262142A (en) * | 2015-10-29 | 2016-01-20 | 张家港荣源电气有限公司 | Automatic parallel operation control method for shore power variable-frequency power supply |
| CN105305449A (en) * | 2015-11-26 | 2016-02-03 | 上海华艾软件股份有限公司 | Ship shore power system |
| CN105305449B (en) * | 2015-11-26 | 2018-01-09 | 上海艾临科智能科技有限公司 | Shipping shore power system |
| TWI606358B (en) * | 2016-05-12 | 2017-11-21 | Line voltage drop estimation system for ship shore connection | |
| CN106628096A (en) * | 2016-11-10 | 2017-05-10 | 南京南瑞继保电气有限公司 | Shore power supply system and grid-connection control method thereof |
| CN108336763A (en) * | 2018-02-08 | 2018-07-27 | 澄瑞电力科技（上海）有限公司 | The parallel method of H bridge cascade connection type shore electric powers based on decoupled active and reactive control |
| CN108336763B (en) * | 2018-02-08 | 2021-01-15 | 澄瑞电力科技（上海）有限公司 | Active and reactive decoupling control-based parallel connection method of H-bridge cascaded shore power supply |
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