CN209730892U

CN209730892U - A kind of marine wind electric field is combated typhoon set yaw backup power system

Info

Publication number: CN209730892U
Application number: CN201920316359.8U
Authority: CN
Inventors: 唐彬伟
Original assignee: MingYang Smart Energy Group Co Ltd
Current assignee: MingYang Smart Energy Group Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-12-03
Anticipated expiration: 2029-03-13

Abstract

It combats typhoon set yaw backup power system the utility model discloses a kind of marine wind electric field, including diesel generating set, diesel generating set step-up transformer, damping unit, shunt reactor, shunt reactor step-up transformer, the diesel generating set, diesel generating set step-up transformer and damping unit form a circuit and are connected to the bus bar side of marine wind electric field, wherein, the diesel generating set is connected with the low-pressure side of diesel generating set step-up transformer by breaker, the damping unit is set between bus bar side and diesel generating set step-up transformer；The shunt reactor and shunt reactor step-up transformer form another circuit and are connected to bus bar side by breaker.The utility model solution can ensure that fan yaw system safety, normal operation during typhoon.

Description

A kind of marine wind electric field is combated typhoon set yaw backup power system

Technical field

The utility model relates to the technical field of offshore wind turbine, refers in particular to a kind of marine wind electric field and combat typhoon machine Group yaw backup power system.

Background technique

With the development of offshore wind farm, marine wind electric field scale is increasing.During typhoon, bulk power grid power blackout situation Under, it not can guarantee the yaw power supply of wind power generating set and the normal work of control system, increase the fatigue to unit Load, there has been no effective reliable schemes to solve the problems, such as this at present, to ensure during typhoon and the normal operation of yaw system, Typhoon is reduced to the fatigue load of unit.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, in order to provide surely during typhoon for yaw system Fixed, safe and reliable power supply proposes a kind of marine wind electric field and combats typhoon set yaw backup power system, during typhoon, entirely Wind field is powered by a set of backup power system, and diesel generating set provides power source for yaw system and interior electricity consumption of standing, The charging that shunt reactor balances the collection electric line of wind power plant is idle, damping unit Eliminate highter harmonic, guarantees power quality, In conjunction with advanced control and Preservation tactics, it can be ensured that the safety of fan yaw system, normal operation during typhoon.

To achieve the above object, technical solution provided by the utility model are as follows: a kind of marine wind electric field unit of combating typhoon is inclined Navigate backup power system, including diesel generating set, diesel generating set step-up transformer, damping unit, shunt reactor, simultaneously Join reactor step-up transformer, the diesel generating set, diesel generating set step-up transformer and damping unit form one Circuit and the bus bar side for being connected to marine wind electric field, wherein the diesel generating set and diesel generating set step-up transformer Low-pressure side be connected by breaker, the damping unit be set between bus bar side and diesel generating set step-up transformer, For preventing the misoperation of high-frequency resonant；The shunt reactor and shunt reactor step-up transformer form another circuit And bus bar side is connected to by breaker, for for balance marine wind electric field the charging for integrate electric line it is idle as system work when Supplement inductive reactive power.

Further, the damping unit is made of air-core reactor and resistor.

Further, the damping unit and shunt reactor step-up transformer are pressed off with the attachment device for integrating electric line as height Close cabinet.

Further, the breaker of the diesel generating set and shunt reactor is placed in grid-connection cabinet.

Further, the diesel generating set step-up transformer, shunt reactor step-up transformer and shunt reactor are put It being placed in same marine worker container, the fuel tank of the grid-connection cabinet and backup power system is placed in another marine worker container, The damping unit is set to the outside of two marine worker containers.

The utility model compared with prior art, have the following advantages that with the utility model has the advantages that

The utility model considers the reactive balance at every collection electric line switching moment, is every collection electric line switching design The gear capacity of corresponding shunt reactor, while can effectively inhibit three times to improve damping unit designed by power quality Above harmonic wave, in addition backup power supply error protection and the monitoring Preservation tactics of remote control, remote signalling, telemetering, after further improving The stability of stand-by power source system；In addition the resistor of damping unit and reactor use hollow type, at low cost, easy to maintain；Simultaneously The utility model modularized design (using two marine worker containers, a set of external damping unit) flexible arrangement, saves space, Easily meet the outdoor addressing requirement of backup power system.

Detailed description of the invention

Fig. 1 is the system wiring figure of the utility model.

Fig. 2 is the integral layout figure of the utility model.

Specific embodiment

The utility model is described in further detail combined with specific embodiments below.

The set yaw backup power system as shown in Figure 1, marine wind electric field provided by the present embodiment is combated typhoon, including diesel oil Generating set 1, diesel generating set step-up transformer 2, damping unit 3, shunt reactor 4, shunt reactor step-up transformer 5；The diesel generating set 1, diesel generating set step-up transformer 2 and damping unit 3 form a circuit and are connected to 35kV bus bar side, wherein the diesel generating set 1 is that 0.4kV accesses voltage class, with 0.4kV-35kV diesel generating set The low-pressure side of step-up transformer 2 is connected by breaker, for yaw load, case loss on transmission consumption, the collection electric line of marine wind electric field 10 no-load loss, parallel reactance and damping circuit loss provide power support, guarantee yaw when yaw motor normal work and The normal operation of power plant's load, the Starting mode that opens and be remotely controlled certainly of diesel generating set 1 is to electrically activate mode, to prevent diesel oil The reasons such as cell circuit failure, brownout occurs on startup in generating set 1 causes starting to fail, to evade this risk, bavin Oily generating set 1 can also increase gas Starting mode, and the diesel generating set step-up transformer 2 is used for diesel generating set 1 Exit potential 0.4kV voltage increase to 35kV busbar voltage grade, the damping unit 3 is 35kV damping unit and is set to It between 35kV bus and diesel generating set step-up transformer 2, is made of air-core reactor and resistor, for preventing harmonic high frequency The misoperation of vibration can consume high-frequency resonant energy, it is made to decay as early as possible, prevent in the case where excitation resonance occurs in system Only resonance overvoltage damages electrical equipment, guarantee emergency power supply can operate normally, the shunt reactor 4 it is specified Voltage is 10kV, and forms another circuit with 10kV-35kV shunt reactor step-up transformer 5 and be connected to by breaker 35kV bus bar side, it is described in parallel electric for supplementing inductive reactive power when the idle work as system of charging for integrate electric line 10 to balance Anti- device step-up transformer 5 is used for the 10kV voltage increase of shunt reactor 4 to 35kV busbar voltage grade.

The attachment device of the collection electric line 10 of the damping unit 3 and shunt reactor step-up transformer 5 and 35kV simultaneously For 35kV high-tension switch cabinet (not shown), for providing protection against；The diesel generating set 1 and shunt reactor 4 Breaker be placed in grid-connection cabinet (not shown), the diesel generating set step-up transformer 2, shunt reactor boosting Transformer 5 and shunt reactor 4 are placed in same marine worker container 71, the fuel tank of the grid-connection cabinet and backup power system (not shown) is placed in another marine worker container 72, and the damping unit 3 is set to the outside of two marine worker containers, Its layout is as shown in Fig. 2, can guarantee that equipment operates normally under various adverse circumstances, compact, flexible, modular arrangement Save space occupied.

The control of the backup power system and Preservation tactics:

1) (such as coolant water temperature is high, oil temperature is high, engine oil pressure is low, excessively negative for the generation of diesel generating set 1 minor failure Lotus, 3 starting failures, starting battery capacity are too low), sending sound, light alarm, and allow parking manually.

2) diesel generating set 1 occur catastrophe failure (such as coolant water temperature is excessively high, oil temperature is excessively high, engine oil pressure is too low, Exceed the speed limit, be too low or too high for voltage), it when engine being made to be in scheduled distress phase, should stop, concurrently speak, light alarm immediately Signal.

3) fuel tank state can be monitored in real time, if oil leak occurs for fuel tank, Central Control Room should be able to receive oil leakage alarm signal.

4) the low oil level switch in domestic oil tank, the signal an alert when fuel tank inner capacities is reduced to 20%, 50%.

5) diesel generating set 1 is jumped automatically immediately in overcurrent, power supply buses short circuit, disconnected phase, overtension, decompression Lock, and issue sound-light alarm；Electrically-actuated throttle device and overspeed trip structure are installed, the fuel shutoff when hypervelocity 15%.

6) diesel generating set 1 has fault self-diagnosis function.

7) all sound and light alarm signals and cancel switch are connected on control flow, and display signal includes: generating unit speed, oil pressure Power, water temperature, DC voltage, working hours, generator line voltage, phase voltage, phase current, frequency, power factor, active power, Reactive power, apparent energy, electric degree, rate of load condensate.

8) be remotely controlled: emergency shutdown is remotely controlled/shutdown group.

9) remote signalling: working method (automatic/hand), stop in emergency, over-voltage, under-voltage, single-phase and three-phase overcurrent, low oil pressure, Water temperature is high, frequency (revolving speed) is high/low, starting failure, starting cell voltage are low, the low alarm of oil level, commercial power interruption, unit work, Unit failure, charging rectifier failure etc..

10) telemetering: three-phase voltage, three-phase current, output power, output frequency (revolving speed), water temperature, oil pressure, starting battery Voltage.

The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this Practical range, therefore all shapes according to the utility model, change made by principle, it should all cover in the protection scope of the utility model It is interior.

Claims

The set yaw backup power system 1. a kind of marine wind electric field is combated typhoon, it is characterised in that: including diesel generating set, diesel oil Generating set step-up transformer, damping unit, shunt reactor, shunt reactor step-up transformer, the diesel generating set, Diesel generating set step-up transformer and damping unit form a circuit and are connected to the bus bar side of marine wind electric field, wherein The diesel generating set is connected with the low-pressure side of diesel generating set step-up transformer by breaker, the damping unit Between bus bar side and diesel generating set step-up transformer, for preventing the misoperation of high-frequency resonant；The electricity in parallel Anti- device and shunt reactor step-up transformer form another circuit and are connected to bus bar side by breaker, for extra large to balance Inductive reactive power is supplemented when the charging for integrating electric line of upper wind power plant is idle as system work.
The set yaw backup power system 2. a kind of marine wind electric field according to claim 1 is combated typhoon, it is characterised in that: institute Damping unit is stated to be made of air-core reactor and resistor.
The set yaw backup power system 3. a kind of marine wind electric field according to claim 1 is combated typhoon, it is characterised in that: institute It states damping unit and shunt reactor step-up transformer and integrates the attachment device of electric line as high-tension switch cabinet.
The set yaw backup power system 4. a kind of marine wind electric field according to claim 1 is combated typhoon, it is characterised in that: institute The breaker for stating diesel generating set and shunt reactor is placed in grid-connection cabinet.
The set yaw backup power system 5. a kind of marine wind electric field according to claim 4 is combated typhoon, it is characterised in that: institute It states diesel generating set step-up transformer, shunt reactor step-up transformer and shunt reactor and is placed in same marine worker container In, the fuel tank of the grid-connection cabinet and backup power system is placed in another marine worker container, and the damping unit is set to two The outside of a marine worker container.