CN103532224B - A kind of UPS collocation method of marine wind electric field - Google Patents
A kind of UPS collocation method of marine wind electric field Download PDFInfo
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The present invention discloses a kind of UPS collocation method of marine wind electric field, it is characterized in that: ups system is divided into offshore wind farm unit, booster stations and centralized control center three part, described booster stations are divided into sea/island booster stations and land booster stations two kinds by geographical position again, divide by above, carry out ups system Capacity Selection respectively, the standby time is selected, version and redundant fashion, ups system direct current input, apparatus arrangement and the ups system mode of connection configure; On the ups system standby time allocation problem, take into full account the marine and likelihood of failure of onshore applications or system and the fault correction time of correspondence, given standby time recommendation; In the configuration of ups system redundant fashion, then with the status of marine wind electric field in electric power system for principle, the wind energy turbine set giving different importance is suitable for the redundant configuration mode adopted.The ups system of marine wind electric field is divided into four parts by the present invention, chooses rational configuration mode for different piece, defines concrete configuration mode.
Description
Technical field
The present invention relates to a kind of UPS configuration mode, be specifically related to a kind of UPS collocation method of marine wind electric field.Belong to electrical equipment technical field.
Background technology
Along with the development of power technology, novel energy progressively replaces traditional low-carbon energy, and novel energy comprises wind energy, solar energy and oceanic energy etc.Due to the feature such as Oversea wind aboundresources, wind speed profile be even, marine wind electric field has great development space in coastline resource-rich country or area.Along with the develop rapidly of computer technology, the range of application of computer monitoring in wind energy turbine set automated system is more and more wider.In order to ensure the safe and stable operation of wind energy turbine set, computer monitoring, communication system etc. must adopt ups system to power, but marine wind electric field offshore distance, inspection and maintenance cycle are long, the design of its ups system has its particularity relative to traditional power plants and land wind energy turbine set.At present, ups system is comparatively ripe at the collocation method of traditional power plants and land wind energy turbine set, but the configuration of the ups system of marine wind electric field still lacks uniform view and scheme.
Summary of the invention
Object of the present invention is to overcome the ups system allocation plan lacking marine wind electric field at present, providing a kind of UPS collocation method of practicable marine wind electric field, meet the power demands of marine wind electric field important load.
Object of the present invention can be achieved through the following technical solutions:
A kind of UPS collocation method of marine wind electric field, it is characterized in that: the ups system of marine wind electric field is divided into offshore wind farm unit, booster stations and centralized control center three part, carry out ups system Capacity Selection respectively by offshore wind farm unit, booster stations and centralized control center, the standby time is selected, version and redundant fashion, ups system direct current input, apparatus arrangement and the ups system mode of connection configure;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic determine the capacity configuration of UPS, go out UPS capacity, and leave suitable surplus according to this three part ups system main loads seletion calculation separately;
2) the described standby time is selected, use by accident interruption time overall process and consider, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and when comprising unit fault, maintenance personal's time of advent and accident repair time, be at least 4 hours; Land booster stations and centralized control center, when having people on duty, be not less than 0.5 hour; Time unattended, according to engineering actual selection 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS determines the type of UPS, and the version of ups system must ensure the uninterrupted power supply of important load, therefore the selection judging accident time is two conversion on line type UPSs of 0; The redundant fashion of ups system depends on wind energy turbine set importance in systems in which, the wind energy turbine set of 110kV with 220kV access due to relative in the status of system be not extremely important, booster stations and centralized control center's ups system redundant fashion select main frame series redundancy mode; The wind energy turbine set importance that the wind energy turbine set of 500kV access accesses relative to 110kV and 220kV is higher, and booster stations and centralized control center's ups system select the wiring of main frame parallel redundancy; When wind energy turbine set status is in systems in which extremely important, booster stations and centralized control center's ups system adopt the power array redundancy that power supply reliability is the highest;
4) described ups system direct current input, offshore wind farm unit takes from the direct current system of matched with blower, and booster stations direct current system set up by booster stations, and centralized control center sets up centralized control center's direct current system;
5) described apparatus arrangement, the apparatus arrangement of offshore wind farm unit ups system is determined according to the design of blower fan by blower fan producer, the apparatus arrangement of booster stations and centralized control center mainly contains three kinds of schemes, comprising: be arranged in special UPS switchgear house, share switchgear house with direct current cabinet and be arranged in secondary device room;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is determined according to the specific design of blower fan by blower fan producer, and the UPS bus of booster stations and centralized control center should adopt single busbar connection, adopts radiation type electric supply mode.
Further: described booster stations are divided into sea/island booster stations and land booster stations two kinds by geographical position.
Further: 1) the ups system main loads of described marine wind electric field comprises control system in blower fan, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and blower foundation monitoring system;
2) the ups system main loads of described sea/island booster stations comprises computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
3) the ups system main loads of described land booster stations and centralized control center comprises computer supervisory control system, electrical equipment status monitoring system, communication system, wind power forecasting system, video monitoring system and fire alarm system;
Further: described ups system Capacity Selection, when calculating UPS capacity, the load factor of consideration is as follows: steady state load total capacity, load power factor, in short-term continuous duty capacity and impact load capacity.
Further:
1) the described standby time is selected, offshore wind farm unit failure safety at power cut comprises unit fault, extra large cable fault and electrical network access fault three kinds of forms, during unit fault, ups system ensures the normal operation of each power supply unit, monitor message is uploaded to remote monitoring center by unit SCADA system, when unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal keeps in repair to Wind turbines, and the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time; During the cable fault of sea, UPS cannot provide the sufficiently long standby time; During electrical network access fault, Wind turbines is out of service, and the standby time depends on electrical network access accident repair time, and electrical network access fault usually occurs in land, and the repair time is less than unit fault correction time usually;
2) described sea/island booster stations accident interruption reason comprises booster stations fault, sea cable fault and electrical network access fault three kinds of forms, during booster stations fault, booster stations are furnished with diesel engine generator provides accident emergency power supply, there is failure risk in diesel generating set and security personnel's controller switching equipment thereof, the UPS standby time repairs booster stations by maintenance personal and considers fault time, this extra large cable fault and electrical network access fault with the extra large cable fault of offshore wind farm unit and electrical network access fault phase with, therefore maintenance personal's time of advent and accident repair time when the standby time of offshore wind farm unit and booster stations comprises unit fault, be at least 4 hours,
3) the described land booster stations accident interruption standby time is identical with centralized control center.
Further: in described version and redundant fashion, have the part throttle characteristics of direct relation as follows with UPS type selecting:
1) completely can not interruption of power supply important load, only can bear finite frequency, voltage fluctuation load or only can bear finite harmonic distortion load;
2) marine wind electric field each several part comprises the equipment high to power reguirements, comprise surveillance, control system, fire alarm system, the version of marine wind electric field ups system must ensure the uninterrupted power supply of this type of important load, select the judging accident time be 0 two conversion on line type UPSs.
Further: described two conversion on line type UPS is made up of rectifier, inverter, static diverter switch, isolating transformer, bypass and battery pack, this pair of conversion on line type UPS is in input ac power interruption situation, inverter is in running order, and its output voltage waveforms is that continuous print is sinusoidal wave.
Further: the ups system of described booster stations and centralized control center comprises mainframe, bypass cabinet and main distribution cabinet equipment, and the ups system equipment of booster stations and centralized control center is arranged in secondary device room separately, nearby for load is powered.
Beneficial effect of the present invention:
1, the allocation problem of marine wind electric field ups system is divided into Wind turbine by the present invention, booster stations, three, centralized control center part study respectively; For the feature of different piece, choose rational configuration mode; On the ups system standby time allocation problem, take into full account the marine and likelihood of failure of onshore applications or system and the fault correction time of correspondence, given standby time recommendation; In the configuration of ups system redundant fashion, then with the status of marine wind electric field in electric power system for principle, the wind energy turbine set giving different importance is suitable for the redundant configuration mode adopted.The each importance that the present invention is directed to the configuration of marine wind electric field ups system gives design principle, defines concrete configuration mode, and part directly specifies scheme and parameter.
2, the ups system of the present invention's configuration combines the collocation method of conventional power plant, and has taken into full account the particularity of marine wind electric field, and the design for its ups system provides practicable thinking, can be directly used in Practical Project.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of two conversion on line type UPS in the present invention.
Fig. 2 is principal and subordinate's redundant circuit structural representation of main frame series redundancy in the present invention.
Fig. 3 is the interactive redundant circuit structural representation of main frame series redundancy in the present invention.
Fig. 4 is the electrical block diagram of main frame parallel redundancy wiring in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Referring to figs. 1 through Fig. 4, the UPS collocation method of the marine wind electric field that the present embodiment relates to, first the ups system of marine wind electric field is divided into offshore wind farm unit, booster stations and centralized control center three part, then carries out ups system Capacity Selection respectively by offshore wind farm unit, booster stations and centralized control center, the standby time is selected, version and redundant fashion, ups system direct current input, apparatus arrangement and the ups system mode of connection configure;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic determine the capacity configuration of UPS, go out UPS capacity, and leave suitable surplus according to this three part ups system main loads seletion calculation separately;
2) the described standby time is selected, use by accident interruption time overall process and consider, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and when comprising unit fault, maintenance personal's time of advent and accident repair time, be at least 4 hours; Land booster stations and centralized control center, when having people on duty, be not less than 0.5 hour; Time unattended, according to engineering actual selection 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS determines the type of UPS, and the version of ups system must ensure the uninterrupted power supply of important load, therefore the selection judging accident time is two conversion on line type UPSs of 0; The redundant fashion of ups system depends on wind energy turbine set importance in systems in which, the wind energy turbine set of 110kV with 220kV access due to relative in the status of system be not extremely important, booster stations and centralized control center's ups system redundant fashion select main frame series redundancy mode; The wind energy turbine set importance that the wind energy turbine set of 500kV access accesses relative to 110kV and 220kV is higher, and booster stations and centralized control center's ups system select the wiring of main frame parallel redundancy; When wind energy turbine set status is in systems in which extremely important, booster stations and centralized control center's ups system adopt the power array redundancy that power supply reliability is the highest;
4) described ups system direct current input, offshore wind farm unit takes from the direct current system of matched with blower, and booster stations direct current system set up by booster stations, and centralized control center sets up centralized control center's direct current system;
5) described apparatus arrangement, the apparatus arrangement of offshore wind farm unit ups system is determined according to the design of blower fan by blower fan producer, the apparatus arrangement of booster stations and centralized control center mainly contains three kinds of schemes, comprising: be arranged in special UPS switchgear house, share switchgear house with direct current cabinet and be arranged in secondary device room;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is determined according to the specific design of blower fan by blower fan producer, and the UPS bus of booster stations and centralized control center should adopt single busbar connection, adopts radiation type electric supply mode.
Described UPS (UninterruptiblePowerSupply) system: i.e. uninterruptible power system is a kind of take inverter as main element containing energy storage device, the power protective equipment that voltage stabilization and frequency stabilization exports.Primarily of a few part composition such as rectifier, DC power supply or storage battery, inverter and static switch.
The ups system main loads of described marine wind electric field comprises control system in blower fan, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and blower foundation monitoring system;
The ups system main loads of described sea/island booster stations comprises computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
The ups system main loads of described land booster stations and centralized control center comprises computer supervisory control system, electrical equipment status monitoring system, communication system, wind power forecasting system, video monitoring system and fire alarm system;
Described ups system Capacity Selection, the load capacity of UPS and characteristic determine the capacity configuration of UPS, when calculating UPS capacity, need the load factor of consideration as follows:
1) steady state load total capacity
2) load power factor
3) continuous duty capacity in short-term
4) impact load capacity
Go out UPS capacity according to offshore wind farm unit, sea/island booster stations and land booster stations and centralized control center's ups system main loads seletion calculation separately, and leave suitable surplus, system of selection is identical with land wind energy turbine set with traditional power plants, therefore omits at this;
The described standby time is selected: use by accident interruption time overall process and consider, offshore wind farm unit failure safety at power cut mainly comprises unit fault, extra large cable fault and electrical network access fault three kinds of forms:
During unit fault, ups system ensures the normal operation of each power supply unit, and monitor message is uploaded to remote monitoring center by unit SCADA system.When unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal needs keep in repair to Wind turbines, and therefore the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time.Described SCADA (SupervisoryControlAndDataAcquisition) system and data acquisition and supervisor control.
During the cable fault of sea, Wind turbines is out of service, if extra large cable is impaired, the fracture of extra large cable composite fiber, the supervisory control system in blower fan cannot on send a distant place, UPS loses value for electricity; Meanwhile, there is impaired fault in extra large cable, and the repair time, UPS cannot provide the sufficiently long standby time usually more than 1 week.
During electrical network access fault, Wind turbines is out of service, and the standby time depends on electrical network access accident repair time.Because electrical network access fault usually occurs in land, therefore the repair time is less than unit fault correction time usually.
To sum up, maintenance personal's time of advent and accident repair time when Wind turbines ups system preparation time depends primarily on unit fault.Residing for different engineering distance bank Distance geometry, natural environment is different, and the time of advent of maintenance personal specifically need be considered according to engineering, and the usual Wind turbines ups system standby time should be at least 4 hours.
Sea/island booster stations accident interruption reason mainly comprises booster stations fault, extra large cable fault and electrical network access fault three kinds of forms:
During pressure station failure: booster stations are furnished with diesel engine generator usually provides accident emergency power supply, but there is failure risk equally due to diesel generating set and security personnel's controller switching equipment thereof, therefore the UPS standby time still repairs booster stations fault times by maintenance personal and considers.
Identical with cable failure condition extra large in offshore wind farm unit during the cable fault of sea, therefore omit at this;
It is identical that electrical network access fault and electrical network in offshore wind farm unit access failure condition, therefore omit at this.
To sum up, maintenance personal's time of advent and accident repair time when the ups system preparation time of sea/island booster stations depends primarily on booster stations fault.Residing for different engineering distance bank Distance geometry, natural environment is different, and the time of advent of maintenance personal specifically need be considered according to engineering, and the usual booster stations ups system standby time should be not less than 4 hours.
Land booster stations are identical with the ups system standby time of centralized control center, and consider with reference to traditional power plants, the ups system standby time of centralized control center, when centralized control center has people on duty, UPS preparation time should be not less than 0.5 hour; As centralized control center non-attendant operation, UPS preparation time can be actual according to engineering, selects 1 hour or 2 hours.
Described version and redundant fashion, the part throttle characteristics of UPS determines the type of UPS, has the part throttle characteristics of direct relation as follows with UPS type selecting:
1) completely can not interruption of power supply important load, only can bear finite frequency and voltage fluctuation load or only can bear finite harmonic distortion load;
2) as can be seen from ups system main loads, marine wind electric field each several part all comprises the equipment higher to power reguirements such as corresponding surveillance, control system, fire alarm system.Therefore the version of ups system must ensure the uninterrupted power supply of this type of important load, should select the judging accident time be 0 two conversion on line type UPSs.
Two conversion on line type UPS is made up of rectifier 1, inverter 2, static diverter switch 3, isolating transformer 4, bypass 5 and battery pack etc., as shown in Figure 1, its work characteristics is no matter whether input ac power interrupts, inverter is all in running order, and output voltage waveforms is continuous print sine wave.Ensure that power supply is to except output voltage in the handoff procedure of battery and the unbroken feature of waveform when civil power disappears except having, because civil power just will power to the load after over commutation, inversion, so no matter be by mains-supplied or by storage battery power supply, all can provide high-quality power supply to load, meet the power demands of marine wind electric field.
The redundant fashion of ups system depends on wind energy turbine set importance in systems in which.
The wind energy turbine set of 110kV with 220kV access due to relative in the status of system be not extremely important, therefore booster stations and centralized control center's ups system redundant fashion should select the relative simple main frame series redundancy mode of wiring.Described UPS main frame series redundancy, series redundancy mode is applicable to the UPS with bypass 5, adopts the UPS quantity of series redundancy to be generally no more than two.According to the difference of the redundancy mode of connection, series redundancy can be divided into principal and subordinate's redundancy and interactive redundancy.Principal and subordinate's redundancy the output of UPS for subsequent use is accessed the bypass 5 of main UPS, and band dynamic load 6, wiring block diagram is as Fig. 2.Interactive redundancy is by the bypass 5 of two UPS respectively from the output power taking source of another UPS, and is with 50% load, 6, two UPS to divide without master and slave respectively, and wiring block diagram is as Fig. 3.
The wind energy turbine set importance that the wind energy turbine set of 500kV access accesses relative to 110kV and 220kV is higher, the main frame parallel redundancy wiring that booster stations and centralized control center's ups system also can select reliability higher.Described UPS main frame parallel redundancy: parallel redundancy is by the output parallel connection of more than two UPS (input can parallel connection also can not be in parallel), and two UPS parallel redundancy wiring block diagrams are as Fig. 4.
When wind energy turbine set status is in systems in which extremely important, booster stations and centralized control center's ups system should adopt the power array redundancy that power supply reliability is the highest.Described power array redundancy: the modified version of parallel redundancy, adopts and the UPS module of hot swap can press N+1 or N+X mode redundancy.A UPS is made up of multiple UPS module, and during replacing malfunctioning module, UPS does not shut down.
Described ups system direct current input, offshore wind farm unit takes from the direct current system of matched with blower, and booster stations direct current system set up by booster stations, and centralized control center sets up centralized control center's direct current system;
Described apparatus arrangement, the apparatus arrangement of offshore wind farm unit ups system is determined according to the specific design of blower fan by blower fan producer, and the apparatus arrangement of booster stations and centralized control center mainly contains three kinds of schemes: be arranged in special UPS switchgear house, share switchgear house with direct current cabinet or be arranged in secondary device room;
Because the ups system of booster stations and centralized control center comprises mainframe, bypass cabinet and main distribution cabinet equipment respectively, booster stations and centralized control center take up an area limited usually, and UPS equipment capacity is often relatively little, therefore the ups system equipment of booster stations and centralized control center is arranged in secondary device room separately, nearby for load is powered.
The ups system mode of connection: the mode of connection of offshore wind farm unit ups system is determined according to the specific design of blower fan by blower fan producer, the UPS bus of booster stations and centralized control center should adopt single busbar connection, adopts radiation type electric supply mode.
Claims (7)
1. the UPS collocation method of a marine wind electric field, it is characterized in that: the ups system of marine wind electric field is divided into offshore wind farm unit, booster stations and centralized control center three part, carry out ups system Capacity Selection respectively by offshore wind farm unit, booster stations and centralized control center, the standby time is selected, version and redundant fashion, ups system direct current input, apparatus arrangement and the ups system mode of connection configure;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic determine the capacity configuration of UPS, go out UPS capacity, and leave suitable surplus according to this three part ups system main loads seletion calculation separately;
2) the described standby time is selected, use by accident interruption time overall process and consider, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and when comprising unit fault, maintenance personal's time of advent and accident repair time, be at least 4 hours; Land booster stations and centralized control center, when having people on duty, be not less than 0.5 hour; Time unattended, select 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS determines the type of UPS, and the version of ups system must ensure the uninterrupted power supply of important load, therefore the selection judging accident time is two conversion on line type UPSs of 0; The redundant fashion of ups system depends on wind energy turbine set importance in systems in which, the wind energy turbine set of 110kV with 220kV access due to relative in the status of system be not extremely important, booster stations and centralized control center's ups system redundant fashion select main frame series redundancy mode; The wind energy turbine set importance that the wind energy turbine set of 500kV access accesses relative to 110kV and 220kV is higher, and booster stations and centralized control center's ups system select the wiring of main frame parallel redundancy; When wind energy turbine set status is in systems in which extremely important, booster stations and centralized control center's ups system adopt the power array redundancy that power supply reliability is the highest;
4) described ups system direct current input, offshore wind farm unit takes from the direct current system of matched with blower, and booster stations direct current system set up by booster stations, and centralized control center sets up centralized control center's direct current system;
5) described apparatus arrangement, the apparatus arrangement of offshore wind farm unit ups system is determined according to the design of blower fan by blower fan producer, the apparatus arrangement of booster stations and centralized control center mainly contains three kinds of schemes, comprising: be arranged in special UPS switchgear house, share switchgear house with direct current cabinet and be arranged in secondary device room;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is determined according to the specific design of blower fan by blower fan producer, and the UPS bus of booster stations and centralized control center should adopt single busbar connection, adopts radiation type electric supply mode.
2. the UPS collocation method of a kind of marine wind electric field according to claim 1, is characterized in that: described booster stations are divided into sea/island booster stations and land booster stations two kinds by geographical position.
3. the UPS collocation method of a kind of marine wind electric field according to claim 1 and 2, is characterized in that:
1) the ups system main loads of described marine wind electric field comprises control system in blower fan, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and blower foundation monitoring system;
2) the ups system main loads of described sea/island booster stations comprises computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
3) the ups system main loads of described land booster stations and centralized control center comprises computer supervisory control system, electrical equipment status monitoring system, communication system, wind power forecasting system, video monitoring system and fire alarm system.
4. the UPS collocation method of a kind of marine wind electric field according to claim 1 and 2, it is characterized in that: described ups system Capacity Selection, when calculating UPS capacity, the load factor of consideration is as follows: steady state load total capacity, load power factor, in short-term continuous duty capacity and impact load capacity.
5. the UPS collocation method of a kind of marine wind electric field according to claim 1 and 2, is characterized in that:
1) the described standby time is selected, offshore wind farm unit failure safety at power cut comprises unit fault, extra large cable fault and electrical network access fault three kinds of forms, during unit fault, ups system ensures the normal operation of each power supply unit, monitor message is uploaded to remote monitoring center by unit SCADA system, when unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal keeps in repair to Wind turbines, and the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time; During the cable fault of sea, UPS cannot provide the sufficiently long standby time; During electrical network access fault, Wind turbines is out of service, and the standby time depends on electrical network access accident repair time, and electrical network access fault usually occurs in land, and the repair time is less than unit fault correction time usually;
2) described sea/island booster stations accident interruption reason comprises booster stations fault, sea cable fault and electrical network access fault three kinds of forms, during booster stations fault, booster stations are furnished with diesel engine generator provides accident emergency power supply, there is failure risk in diesel generating set and security personnel's controller switching equipment thereof, the UPS standby time repairs booster stations by maintenance personal and considers fault time, this extra large cable fault and electrical network access fault with the extra large cable fault of offshore wind farm unit and electrical network access fault phase with, therefore maintenance personal's time of advent and accident repair time when the standby time of offshore wind farm unit and booster stations comprises unit fault, be at least 4 hours,
3) the described land booster stations accident interruption standby time is identical with centralized control center.
6. the UPS collocation method of a kind of marine wind electric field according to claim 1 and 2, is characterized in that: have the part throttle characteristics of direct relation as follows with UPS type selecting in described version and redundant fashion:
1) completely can not interruption of power supply important load, only can bear finite frequency, voltage fluctuation load or only can bear finite harmonic distortion load;
2) marine wind electric field each several part comprises the equipment high to power reguirements, comprise surveillance, control system, fire alarm system, the version of marine wind electric field ups system must ensure the uninterrupted power supply of this type of important load, select the judging accident time be 0 two conversion on line type UPSs.
7. the UPS collocation method of a kind of marine wind electric field according to claim 1, it is characterized in that: the ups system of described booster stations and centralized control center comprises mainframe, bypass cabinet and main distribution cabinet equipment, the ups system equipment of booster stations and centralized control center is arranged in secondary device room separately, nearby for load is powered.
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| US9705360B2 (en) * | 2014-03-11 | 2017-07-11 | General Electric Company | Redundant uninterruptible power supply systems |
| US9876354B2 (en) * | 2014-05-21 | 2018-01-23 | Eaton Corporation | UPS systems and methods using coordinated static switch and inverter operation for generator walk-in |
| CN104537427B (en) * | 2014-11-28 | 2018-02-16 | 清华大学 | Marine wind electric field collects the site selecting method of booster stations |
| CN106611994B (en) * | 2015-10-27 | 2023-07-07 | 上海勘测设计研究院有限公司 | Standby power supply system of offshore wind field fan |
| CN109193916A (en) * | 2018-09-06 | 2019-01-11 | 青岛鸿瑞电力工程咨询有限公司 | The capacity and Main Wire Connection Scheme of mirror field load ups power Accessory Battery group |
| CN109462259B (en) * | 2018-12-25 | 2020-09-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Method, device, equipment and medium for configuration analysis of isolated network state of offshore wind power plant |
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