CN103532224A - Method for configuring UPS (uninterrupted power supply) in offshore wind plant - Google Patents
Method for configuring UPS (uninterrupted power supply) in offshore wind plant Download PDFInfo
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Abstract
The invention discloses a method for configuring a UPS in an offshore wind plant. The method is characterized in that a UPS system is divided into three parts including an offshore wind power unit, a booster station and a centralized control center, wherein the booster station is divided into an offshore/island booster station and a land booster station according to the geographic position; according to the division, UPS system capacity selection, standby time selection, selection of a structural form and a redundancy method, UPS system direct current input, equipment arrangement and configuration of a UPS system wiring method are performed respectively; as for the configuration of UPS system standby time, fault possibility and corresponding fault repair time of offshore and land devices or systems are given full consideration, and a recommended value of standby time is given; and as for configuration of the UPS system redundancy method, the redundancy configuration methods suitable for being adopted by wind plants with different significances are given in the principle of the significance of the offshore wind plant in an electrical power system. The UPS system of the offshore wind plant is divided into three parts, reasonable configuration methods are selected according to different parts, and accordingly, the specific configuration methods are formed.
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 guarantee the safe and stable operation of wind energy turbine set, computer monitoring, communication system etc. must adopt ups system power supply, yet marine wind electric field offshore distance, inspection and maintenance cycle are long, and the design of its ups system has its particularity with respect to traditional power plant and land wind energy turbine set.At present, ups system is comparatively ripe at the collocation method of traditional power plant and land wind energy turbine set, but the configuration of the ups system of marine wind electric field still lacks unified viewpoint and scheme.
Summary of the invention
Object of the present invention, is in order to overcome the ups system allocation plan of current shortage marine wind electric field, and a kind of UPS collocation method of practicable marine wind electric field is provided, and meets 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's three parts, by offshore wind farm unit, booster stations and centralized control center, carries out respectively ups system Capacity Selection, standby time selection, version and redundant fashion, the input of ups system direct current, apparatus arrangement and the configuration of the ups system mode of connection;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic have determined the capacity configuration of UPS, mainly load and select to calculate UPS capacity, and leave suitable surplus according to this three part ups system separately;
2) described standby time is selected, and by accident interruption time overall process, uses and considers, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and while 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, while having people on duty, be not less than 0.5 hour; When unattended, according to engineering actual selection 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS has determined the type of UPS, the structural shape of ups system must guarantee the uninterrupted power supply of important load, therefore two conversion on line type UPSs that selection accident switching time is 0; The redundant fashion of ups system depends on the importance of wind energy turbine set in system, and 110kV is not extremely important with the wind energy turbine set of 220kV access because the status in system is relative, and booster stations and centralized control center's ups system redundant fashion are selected main frame series redundancy mode; The wind energy turbine set of 500kV access is higher with respect to the wind energy turbine set importance of 110kV and 220kV access, and booster stations and centralized control center's ups system are selected the wiring of main frame parallel redundancy; Extremely important when the status of wind energy turbine set in system, booster stations and centralized control center's ups system adopt the highest power array redundancy of power supply reliability;
4) described ups system direct current input, offshore wind farm unit is taken from the direct current system of matched with blower, and booster stations are set up booster stations direct current system, 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-purpose UPS switchgear house, share switchgear house and be arranged in secondary device chamber with direct current cabinet;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is definite 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 two kinds of sea/island booster stations and land booster stations by geographical position.
Further: 1) ups system of described marine wind electric field is mainly loaded and comprised control system, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and the blower foundation monitoring system in blower fan;
2) ups system of described sea/island booster stations is mainly loaded and is comprised computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
3) ups system of described land booster stations and centralized control center is mainly loaded and is comprised 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: stable state load total capacity, load power factor, continuous duty capacity and impact load capacity in short-term.
Further:
1) the described standby time is selected, offshore wind farm unit failure power failure reason comprises unit fault, extra large cable fault and three kinds of forms of electrical network access fault, during unit fault, ups system guarantees the normal operation of each power supply unit, unit SCADA system is uploaded to remote monitoring center by monitor message, when unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal keeps in repair to wind-powered electricity generation unit, and the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time; During extra large cable fault, UPS cannot provide sufficiently long charging time; During electrical network access fault, wind-powered electricity generation unit is out of service, and charging 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 conventionally;
2) described sea/island booster stations accident interruption reason comprises booster stations fault, main extra large cable fault and three kinds of forms of electrical network access fault, 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, UPS charging time is repaired booster stations by maintenance personal and is considered fault time, this sea cable fault and electrical network access fault are same with extra large cable fault and the electrical network access fault phase of offshore wind farm unit, 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) important load that completely can not interruption of power supply, only can bear the load of finite frequency, voltage fluctuation or only can bear the load of finite harmonic distortion;
2) marine wind electric field each several part comprises the equipment high to power reguirements, comprise surveillance, control system, fire alarm system, the structural shape of marine wind electric field ups system must guarantee the uninterrupted power supply of this type of important load, two conversion on line type UPSs that selection accident switching time is 0.
Further: described two conversion on line type UPSs consist 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 continuous sine wave.
Further: 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 chamber separately, is load power supply nearby.
Beneficial effect of the present invention:
1, the present invention is divided into Wind turbine, booster stations, three of centralized control centers part by the allocation problem of marine wind electric field ups system and studies respectively; For the feature of different piece, choose rational configuration mode; On ups system standby time allocation problem, taken into full account likelihood of failure and the corresponding fault correction time of marine and onshore applications or system, provided standby time recommendation; In ups system redundant fashion configuration, take the status of marine wind electric field in electric power system is principle, has provided the redundant configuration mode of the suitable employing of wind energy turbine set of different importance.Each importance that the present invention is directed to the configuration of marine wind electric field ups system has provided design principle, has formed concrete configuration mode, and part has directly been specified scheme and parameter.
2, the ups system of the present invention configuration combines the collocation method of conventional power plant, and has taken into full account the particularity of marine wind electric field, for the design of 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 UPSs 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's three parts, then by offshore wind farm unit, booster stations and centralized control center, carries out respectively ups system Capacity Selection, standby time selection, version and redundant fashion, the input of ups system direct current, apparatus arrangement and the configuration of the ups system mode of connection;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic have determined the capacity configuration of UPS, mainly load and select to calculate UPS capacity, and leave suitable surplus according to this three part ups system separately;
2) described standby time is selected, and by accident interruption time overall process, uses and considers, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and while 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, while having people on duty, be not less than 0.5 hour; When unattended, according to engineering actual selection 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS has determined the type of UPS, the structural shape of ups system must guarantee the uninterrupted power supply of important load, therefore two conversion on line type UPSs that selection accident switching time is 0; The redundant fashion of ups system depends on the importance of wind energy turbine set in system, and 110kV is not extremely important with the wind energy turbine set of 220kV access because the status in system is relative, and booster stations and centralized control center's ups system redundant fashion are selected main frame series redundancy mode; The wind energy turbine set of 500kV access is higher with respect to the wind energy turbine set importance of 110kV and 220kV access, and booster stations and centralized control center's ups system are selected the wiring of main frame parallel redundancy; Extremely important when the status of wind energy turbine set in system, booster stations and centralized control center's ups system adopt the highest power array redundancy of power supply reliability;
4) described ups system direct current input, offshore wind farm unit is taken from the direct current system of matched with blower, and booster stations are set up booster stations direct current system, 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-purpose UPS switchgear house, share switchgear house and be arranged in secondary device chamber with direct current cabinet;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is definite 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(Uninterruptible Power Supply) system: i.e. uninterruptible power system is a kind of energy storage device that contains, and take inverter as main element, the power protective equipment of voltage stabilization and frequency stabilization output.Mainly by several parts such as rectifier, DC power supply or storage battery, inverter and static switches, formed.
The ups system of described marine wind electric field is mainly loaded and is comprised control system, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and the blower foundation monitoring system in blower fan;
The ups system of described sea/island booster stations is mainly loaded and is comprised computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
The ups system of described land booster stations and centralized control center is mainly loaded and is comprised 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 have determined the capacity configuration of UPS, when calculating UPS capacity, need the load factor of consideration as follows:
1) stable state load total capacity
2) load power factor
3) continuous duty capacity in short-term
4) impact load capacity
According to offshore wind farm unit, sea/island booster stations and land booster stations and centralized control center's ups system separately, mainly load and select to calculate UPS capacity, and leave suitable surplus, system of selection is identical with land wind energy turbine set with traditional power plant, therefore in this omission;
The described standby time is selected: by accident interruption time overall process, use and consider, offshore wind farm unit failure power failure reason mainly comprises unit fault, extra large cable fault and three kinds of forms of electrical network access fault:
During unit fault, ups system guarantees the normal operation of each power supply unit, and unit SCADA system is uploaded to remote monitoring center by monitor message.When unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal need to arrive wind-powered electricity generation unit energy and keep in repair, so the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time.Described SCADA(Supervisory Control And Data Acquisition) system is data acquisition and supervisor control.
During sea cable fault, wind-powered electricity generation unit is out of service, if extra large cable is impaired, extra large cable composite fiber fracture, 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 surpasses 1 week conventionally, and UPS cannot provide sufficiently long charging time.
During electrical network access fault, wind-powered electricity generation unit is out of service, and charging time depends on electrical network access accident repair time.Because electrical network access fault usually occurs in land, so the repair time is less than unit fault correction time conventionally.
Maintenance personal's time of advent and accident repair time when to sum up, wind-powered electricity generation unit ups system preparation time depends primarily on unit fault.Because different engineerings are different with natural environment of living in apart from bank distance, need specifically consider according to engineering maintenance personal's the time of advent, wind-powered electricity generation unit ups system charging time should be at least 4 hours conventionally.
Sea/island booster stations accident interruption reason mainly comprises booster stations fault, main extra large cable fault and three kinds of forms of electrical network access fault:
While pressing station failure: booster stations are furnished with diesel engine generator conventionally provides accident emergency power supply, but because diesel generating set and security personnel's controller switching equipment thereof exist failure risk equally, so UPS charging time is still repaired booster stations by maintenance personal and is considered fault time.
Identical with extra large cable failure condition in offshore wind farm unit during extra large cable fault, therefore in this omission;
Electrical network access fault is identical with electrical network access failure condition in offshore wind farm unit, therefore in this omission.
Maintenance personal's time of advent and accident repair time when to sum up, the ups system preparation time of sea/island booster stations depends primarily on booster stations fault.Because different engineerings are different with natural environment of living in apart from bank distance, need specifically consider according to engineering maintenance personal's the time of advent, booster stations ups system charging time should be not less than 4 hours conventionally.
Land booster stations are identical with the ups system charging time of centralized control center, with reference to traditional power plant, consider, when the ups system charging time ，Dang centralized control center of centralized control center has people on duty, UPS preparation time should be not less than 0.5 hour; As the non-attendant operation of centralized control center, 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 has determined the type of UPS, has the part throttle characteristics of direct relation as follows with UPS type selecting:
1) important load that completely can not interruption of power supply, only can bear the load of finite frequency and voltage fluctuation or only can bear the load of finite harmonic distortion;
2) from ups system is mainly loaded, can find out, 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 structural shape of ups system must guarantee the uninterrupted power supply of this type of important load, should selection accident switching time two conversion on line type UPSs that are 0.
Two conversion on line type UPSs consist 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 sine wave.Except having, guarantee that when civil power disappears power supply is in the handoff procedure of battery output voltage and the unbroken feature of waveform, because civil power will just 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 the importance of wind energy turbine set in system.
110kV is not extremely important with the wind energy turbine set of 220kV access because the status in system is relative, so booster stations should be selected the relative simple main frame series redundancy mode of wiring with centralized control center's ups system redundant fashion.Described UPS main frame series redundancy, series redundancy mode is applicable to have the UPS of 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 is the output of standby UPS to be accessed to the bypass 5 of main UPS, band dynamic load 6, and wiring block diagram is as Fig. 2.Interactive redundancy be by the bypass of two UPS 5 respectively from the output power taking source of another UPS, and be with respectively 6, two UPS of 50% load without master and slave minute, wiring block diagram is as Fig. 3.
The wind energy turbine set of 500kV access is higher with respect to the wind energy turbine set importance of 110kV and 220kV access, and booster stations and centralized control center's ups system also can be selected the main frame parallel redundancy wiring that reliability is higher.Described UPS main frame parallel redundancy: parallel redundancy is by the output of two above UPS (input can parallel connection also can be not in parallel) in parallel, and two UPS parallel redundancy wiring block diagrams are as Fig. 4.
Extremely important when the status of wind energy turbine set in system, 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, the UPS module that employing can hot swap is pressed N+1 or N+X mode redundancy.A UPS is comprised of a plurality of UPS modules, and while changing malfunctioning module, UPS does not shut down.
Described ups system direct current input, offshore wind farm unit is taken from the direct current system of matched with blower, and booster stations are set up booster stations direct current system, 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 definite 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-purpose UPS switchgear house, share switchgear house or be arranged in secondary device chamber with direct current cabinet;
Because the ups system of booster stations and centralized control center comprises respectively mainframe, bypass cabinet and main distribution cabinet equipment, booster stations and centralized control center take up an area limited conventionally, and UPS place capacity is often relatively little, therefore the ups system equipment of booster stations and centralized control center is arranged in secondary device chamber separately, is load power supply nearby.
The ups system mode of connection: the mode of connection of offshore wind farm unit ups system is definite 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.
Claims (8)
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's three parts, by offshore wind farm unit, booster stations and centralized control center, carries out respectively ups system Capacity Selection, standby time selection, version and redundant fashion, the input of ups system direct current, apparatus arrangement and the configuration of the ups system mode of connection;
1) described ups system Capacity Selection, the load capacity of UPS and characteristic have determined the capacity configuration of UPS, mainly load and select to calculate UPS capacity, and leave suitable surplus according to this three part ups system separately;
2) described standby time is selected, and by accident interruption time overall process, uses and considers, offshore wind farm unit and sea/island booster stations are according to internal fault and Practical Project, and while 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, while having people on duty, be not less than 0.5 hour; When unattended, select 1 hour or 2 hours;
3) described version and redundant fashion, the part throttle characteristics of UPS has determined the type of UPS, the structural shape of ups system must guarantee the uninterrupted power supply of important load, therefore two conversion on line type UPSs that selection accident switching time is 0; The redundant fashion of ups system depends on the importance of wind energy turbine set in system, and 110kV is not extremely important with the wind energy turbine set of 220kV access because the status in system is relative, and booster stations and centralized control center's ups system redundant fashion are selected main frame series redundancy mode; The wind energy turbine set of 500kV access is higher with respect to the wind energy turbine set importance of 110kV and 220kV access, and booster stations and centralized control center's ups system are selected the wiring of main frame parallel redundancy; Extremely important when the status of wind energy turbine set in system, booster stations and centralized control center's ups system adopt the highest power array redundancy of power supply reliability;
4) described ups system direct current input, offshore wind farm unit is taken from the direct current system of matched with blower, and booster stations are set up booster stations direct current system, 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-purpose UPS switchgear house, share switchgear house and be arranged in secondary device chamber with direct current cabinet;
6) the ups system mode of connection, the mode of connection of offshore wind farm unit ups system is definite 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 two kinds of sea/island booster stations and land booster stations 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) ups system of described marine wind electric field is mainly loaded and is comprised control system, blower fan data acquisition and supervisor control, blower fan communication system, blower fan video monitoring system, blower fan fire alarm system and the blower foundation monitoring system in blower fan;
2) ups system of described sea/island booster stations is mainly loaded and is comprised computer supervisory control system, electrical equipment status monitoring system, communication system, video monitoring system and fire alarm system;
3) ups system of described land booster stations and centralized control center is mainly loaded and is comprised 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: stable state load total capacity, load power factor, continuous duty capacity and impact load capacity in short-term.
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 power failure reason comprises unit fault, extra large cable fault and three kinds of forms of electrical network access fault, during unit fault, ups system guarantees the normal operation of each power supply unit, unit SCADA system is uploaded to remote monitoring center by monitor message, when unit fault cannot be repaired automatically or a distant place is repaired, maintenance personal keeps in repair to wind-powered electricity generation unit, and the accident interruption time mainly comprises maintenance personal's time of advent and fault correction time; During extra large cable fault, UPS cannot provide sufficiently long charging time; During electrical network access fault, wind-powered electricity generation unit is out of service, and charging 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 conventionally;
2) described sea/island booster stations accident interruption reason comprises booster stations fault, main extra large cable fault and three kinds of forms of electrical network access fault, 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, UPS charging time is repaired booster stations by maintenance personal and is considered fault time, this sea cable fault and electrical network access fault are same with extra large cable fault and the electrical network access fault phase of offshore wind farm unit, 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: in described version and redundant fashion, have the part throttle characteristics of direct relation as follows with UPS type selecting:
1) important load that completely can not interruption of power supply, only can bear the load of finite frequency, voltage fluctuation or only can bear the load of finite harmonic distortion;
2) marine wind electric field each several part comprises the equipment high to power reguirements, comprise surveillance, control system, fire alarm system, the structural shape of marine wind electric field ups system must guarantee the uninterrupted power supply of this type of important load, two conversion on line type UPSs that selection accident switching time is 0.
7. the UPS collocation method of a kind of marine wind electric field according to claim 6, it is characterized in that: described two conversion on line type UPSs consist of rectifier (1), inverter (2), static diverter switch (3), isolating transformer (4), bypass (5) 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 continuous sine wave.
8. 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 chamber separately, is load power supply nearby.
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Cited By (6)
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| CN104537427A (en) * | 2014-11-28 | 2015-04-22 | 清华大学 | Method for selecting address of converging booster station of offshore wind plant |
| CN104917278A (en) * | 2014-03-11 | 2015-09-16 | 通用电气公司 | Redundant uninterruptible power supply systems |
| CN106464124A (en) * | 2014-05-21 | 2017-02-22 | 伊顿公司 | Ups systems and methods using coordinated static switch and inverter operation for generator walk-in |
| CN106611994A (en) * | 2015-10-27 | 2017-05-03 | 上海勘测设计研究院有限公司 | Standby power supply system for offshore wind field wind turbine |
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| CN104917278A (en) * | 2014-03-11 | 2015-09-16 | 通用电气公司 | Redundant uninterruptible power supply systems |
| CN104917278B (en) * | 2014-03-11 | 2019-12-24 | Abb瑞士股份有限公司 | Redundant uninterruptible power supply system |
| CN106464124A (en) * | 2014-05-21 | 2017-02-22 | 伊顿公司 | Ups systems and methods using coordinated static switch and inverter operation for generator walk-in |
| CN106464124B (en) * | 2014-05-21 | 2019-02-15 | 伊顿公司 | Use the static switch for the coordination stepped into for generator and the ups system of inverter operation and method |
| CN104537427A (en) * | 2014-11-28 | 2015-04-22 | 清华大学 | Method for selecting address of converging booster station of offshore wind plant |
| CN104537427B (en) * | 2014-11-28 | 2018-02-16 | 清华大学 | Marine wind electric field collects the site selecting method of booster stations |
| CN106611994A (en) * | 2015-10-27 | 2017-05-03 | 上海勘测设计研究院有限公司 | Standby power supply system for offshore wind field wind turbine |
| 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 |
| CN109462259A (en) * | 2018-12-25 | 2019-03-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Configuration analysis method, device, equipment and the medium of marine wind electric field isolated network state |
| 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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