CN109667731A - A kind of control method and device of Wind turbines auxiliary motor - Google Patents

A kind of control method and device of Wind turbines auxiliary motor Download PDF

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Publication number
CN109667731A
CN109667731A CN201710961852.0A CN201710961852A CN109667731A CN 109667731 A CN109667731 A CN 109667731A CN 201710961852 A CN201710961852 A CN 201710961852A CN 109667731 A CN109667731 A CN 109667731A
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CN
China
Prior art keywords
control
temperature
auxiliary motor
motor
wind turbines
Prior art date
Application number
CN201710961852.0A
Other languages
Chinese (zh)
Inventor
赵燕峰
万宇宾
高首聪
卢勇
胡婵娟
李旺成
刘璐
翟大勇
唐益文
Original Assignee
中车株洲电力机车研究所有限公司
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Application filed by 中车株洲电力机车研究所有限公司 filed Critical 中车株洲电力机车研究所有限公司
Priority to CN201710961852.0A priority Critical patent/CN109667731A/en
Publication of CN109667731A publication Critical patent/CN109667731A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60Cooling or heating of wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70Bearing or lubricating arrangements

Abstract

The invention discloses a kind of control methods of Wind turbines auxiliary motor, comprising: S01, obtain heat generating components each subdivision temperature;S02, when temperature be not more than T1 when, motor stop;S02, when temperature is increased to T1~T2, motor low speed operation;S03, when temperature raises to above preset threshold T3, motor be in high speed;S04, when temperature drops to T3- Δ 2, motor is by switching at high speed to low speed;S05, when temperature drops to T2- Δ 1, motor switches to shutdown status, and wherein Δ 1 and Δ 2 are preset return difference value.The invention also discloses a kind of control devices, including control unit and temperature detecting unit, temperature detecting unit is used to detect the real time temperature information of each subdivision of heat generating components and is sent to control unit, and control unit controls the revolving speed of auxiliary motor according to real time temperature signal.Control method and device of the invention all have the advantages that reducing energy consumption.

Description

A kind of control method and device of Wind turbines auxiliary motor

Technical field

The invention mainly relates to technical field of wind power generation, refer in particular to a kind of Wind turbines auxiliary motor control method and Device.

Background technique

Auxiliary motor, such as the motor for driving radiator fan are configured in Wind turbines, for driving gear The oil pump motor etc. of case lubrication oil circulation.It also provided control system and detection sensor in Wind turbines simultaneously, control System knows the information such as the temperature of Wind turbines each unit by sensor.

The major heat producing components of Wind turbines have generator, gear-box (direct-drive unit is without the component), current transformer etc., these The fever of component is related to the power that unit is run, and Wind turbines generated output is big, and the calorific value of these components is big, Wen Shenggao, Need for heat dissipation motor running at high speed, high heat-sinking capability is provided;When running of wind generating set is in small-power, The fever of these components is small, and temperature rise is low.And current Wind turbines no matter watt level, the auxiliary motor for heat dissipation works Same state, energy consumption are higher.

Summary of the invention

The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one Kind reduces the control method and device of the Wind turbines auxiliary motor of energy consumption.

In order to solve the above technical problems, technical solution proposed by the present invention are as follows:

A kind of control method of Wind turbines auxiliary motor, comprising steps of

S01, in running of wind generating set, obtain the real time temperature information of each subdivision of heat generating components;

S02, when the logical combination of the single temperature value of acquisition or multiple temperature values be not more than preset threshold T1 when, auxiliary motor In halted state;

S02, when the logical combination of the single temperature value of acquisition or multiple temperature values is increased to preset threshold T1~T2, auxiliary electricity Motivation is in lower-speed state;

S03, when the logical combination of the single temperature value of acquisition or multiple temperature values raises to above preset threshold T3, auxiliary electricity Motivation is in fast state;

S04, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T3- Δ 2, auxiliary motor is by height Fast state switches to lower-speed state, and wherein Δ 2 is preset return difference value;

S05, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T2- Δ 1, auxiliary motor switching To shutdown status, wherein Δ 1 is preset return difference value.

The invention also discloses a kind of control devices of Wind turbines auxiliary motor, including control unit and temperature detection Unit, the temperature detecting unit are used to detect the real time temperature information of each subdivision of heat generating components and are sent to control unit, Described control unit controls the revolving speed of auxiliary motor according to real time temperature signal.

As a further improvement of the above technical scheme:

The heat generating components includes generator, gear-box or current transformer;When the heat generating components is gear-box, corresponding sub-portion Part includes lubricating oil, high speed shaft and slow-speed shaft.

When auxiliary motor belongs to double-speed motor, control unit controls the two of auxiliary motor according to real time temperature signal A firing switch is to realize that revolving speed adjusts.

When auxiliary motor belongs to Δ/Y starting, control auxiliary motor star and triangle switch to realize revolving speed tune It is whole.

When auxiliary motor belongs to Y/YY starting, control auxiliary motor is respectively switched to change the realization of stator winding connection Revolving speed adjustment.

When auxiliary motor belongs to Δ/YY starting, control auxiliary motor respectively switchs real to change stator winding connection Existing revolving speed adjustment.

Compared with the prior art, the advantages of the present invention are as follows:

The control method and device of the Wind turbines auxiliary motor of invention, in the temperature rising stage, by detecting each subdivision Temperature information controls the revolving speed of auxiliary motor, makes its heat radiation power that temperature be followed to be adjusted, relative to existing constant speed side Formula significantly reduces energy consumption;In addition, the frequency control relative to other fields, cost is reduced, and energy-saving effect is identical.

Detailed description of the invention

Fig. 1 is flow chart of the method for the present invention.

Fig. 2 is the wiring diagram of double-speed motor in the present invention.

Fig. 3 is Δ/Y wiring diagram in the present invention.

Specific embodiment

Below in conjunction with Figure of description and specific embodiment, the invention will be further described.

As shown in Figure 1, the control method of the Wind turbines auxiliary motor of the present embodiment, comprising steps of

S01, in running of wind generating set, obtain the real time temperature information of each subdivision of heat generating components;

S02, when the logical combination of the single temperature value of acquisition or multiple temperature values be not more than preset threshold T1 when, auxiliary motor In halted state;

S02, when the logical combination of the single temperature value of acquisition or multiple temperature values is increased to preset threshold T1~T2, auxiliary electricity Motivation is in lower-speed state;

S03, when the logical combination of the single temperature value of acquisition or multiple temperature values raises to above preset threshold T3, auxiliary electricity Motivation is in fast state;

S04, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T3- Δ 2, auxiliary motor is by height Fast state switches to lower-speed state, and wherein Δ 2 is preset return difference value;

S05, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T2- Δ 1, auxiliary motor switching To shutdown status, wherein Δ 1 is preset return difference value.

The control method of Wind turbines auxiliary motor of the invention, in the temperature rising stage, by detecting each subdivision Temperature information controls the revolving speed of auxiliary motor, makes its heat radiation power that temperature be followed to be adjusted, relative to existing constant speed side Formula significantly reduces energy consumption;In addition, the frequency control relative to other fields, cost is reduced, and energy-saving effect is suitable.

As shown in Figures 2 and 3, the present invention further correspondingly discloses a kind of control device of Wind turbines auxiliary motor, packet Control unit and temperature detecting unit are included, temperature detecting unit is used to detect the real time temperature information of each subdivision of heat generating components simultaneously It is sent to control unit, control unit controls the revolving speed of auxiliary motor according to real time temperature signal.

In the present embodiment, heat generating components includes generator, gear-box or current transformer;It is right when heat generating components is gear-box The subassembly answered includes lubricating oil, high speed shaft and slow-speed shaft.

As shown in Fig. 2, control unit is controlled according to real time temperature signal and is assisted when auxiliary motor belongs to double-speed motor Two firing switcies of motor are to realize that revolving speed adjusts, specific adjustment process are as follows:

As shown in Fig. 2, M indicates that motor, G1, G2, G3, G4 indicate the unit or conducting wire that are capable of forming electrical connection, K1, K2 are Contactor, C indicate control system.In control process, control unit detects temperature, according to threshold value T1, T2, T3 of setting, warp Determined after judgement motor be work shut down, low-speed or high-speed state, if temperature is changed in operational process, control The temperature and return difference Δ 1, Δ 2 that unit is detected according to sensor, determine motor shutdown, low speed, high-speed cruising state it Between convert;The wherein setting of return difference Δ 1, Δ 2 is conducive to ensure reliability and stability when control.

As shown in Fig. 2, temperature (lubricating oil temperature, high speed shaft temperature, slow-speed shaft temperature of the control system according to gear-box Deng) information, when the logical combination for detecting single temperature value or multiple temperature values is less than or is not more than threshold value T1, control system K1 and K2 is disconnected, radiation electromotor is in shutdown status;As Wind turbines continue to run, gearbox temperature is increased, when being greater than Or when being not less than threshold value T2, control system is closed K1 and disconnects K2, and radiation electromotor work at this time is in lower-speed state, and motor is certainly The power of body consumption is also smaller;Continue to increase as Wind turbines continue to run gearbox temperature, when more than or not less than threshold value When T3, control system disconnects K1 and is closed K2, and radiation electromotor work at this time increases simultaneously in fast state, system radiating ability The power of motor consumption increases.Wind turbines continue to run, and gearbox temperature decreases, and are lower than or not higher than (T3- Δ 2), control system disconnects K2 at this time, is closed K1, and gear-box radiation electromotor works in lower-speed state;Blower continues to run, Gearbox temperature reduces again, is lower than or not higher than (T2- Δ 1), control system disconnects K1 and K2 at this time, gear-box heat dissipation is electronic Machine is in shutdown status.In this process, temperature of the control system according to gear-box adjusts electronic according to practical radiating requirements The operating status of machine, the relatively original single method of operation, reduces itself power consumption, reaches energy saving purpose.

As shown in figure 3, M indicates Δ/Y connection motor, G1, G2, G3, G4, G5, G6, G7 expression are capable of forming electrical The unit or conducting wire of connection, K1, K2, K3 are contactor, and C indicates control system.Temperature (lubrication of the control system according to gear-box Oil temperature, high speed shaft temperature, slow-speed shaft temperature etc.) information, when the logical combination for detecting single temperature value or multiple temperature values When being less than or being not more than threshold value T1, control system disconnects K1, K2, K3, and gear-box radiation electromotor is in shutdown status;With wind Motor group continues to run, and gearbox temperature increases, and when being more than or not less than threshold value T2, control system is closed K1 and K3, disconnects K2, in lower-speed state, the power of motor itself consumption is also smaller for radiation electromotor work at this time;As Wind turbines are after reforwarding Row gearbox temperature continues to increase, and when being more than or not less than threshold value T3, control system is closed K1 and K2 and disconnects K3, dissipates at this time In fast state, the power that system radiating ability increases motor consumption simultaneously increases hot electric motor operation.Wind turbines continue Operation, gearbox temperature decrease, and are lower than or not higher than (T3- Δ 2), control system disconnects K2 at this time, be closed K1 and K3, tooth Roller box radiation electromotor works in lower-speed state;Blower continues to run, and gearbox temperature reduces again, is lower than or is not higher than (T2- Δ 1), control system disconnects K1, K2 and K3 at this time, and gear-box radiation electromotor is in shutdown status.In this process, Temperature of the control system according to gear-box adjusts the operating status of motor according to practical radiating requirements, relatively original single fortune Line mode reduces itself power consumption, reaches energy saving purpose.Certainly, in other embodiments, when auxiliary motor belongs to Y/YY Or Δ/YY speed regulating motor, control principle are as described above.

The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention Range.

Claims (7)

1. a kind of control method of Wind turbines auxiliary motor, which is characterized in that comprising steps of
S01, in running of wind generating set, obtain the real time temperature information of each subdivision of heat generating components;
S02, when the logical combination of the single temperature value of acquisition or multiple temperature values be not more than preset threshold T1 when, auxiliary motor In halted state;
S02, when the logical combination of the single temperature value of acquisition or multiple temperature values is increased to preset threshold T1~T2, auxiliary electricity Motivation is in lower-speed state;
S03, when the logical combination of the single temperature value of acquisition or multiple temperature values raises to above preset threshold T3, auxiliary electricity Motivation is in fast state;
S04, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T3- Δ 2, auxiliary motor is by height Fast state switches to lower-speed state, and wherein Δ 2 is preset return difference value;
S05, when the logical combination of the single temperature value of acquisition or multiple temperature values drops to T2- Δ 1, auxiliary motor switching To shutdown status, wherein Δ 1 is preset return difference value.
2. a kind of control device of Wind turbines auxiliary motor, which is characterized in that including control unit and temperature detecting unit, The temperature detecting unit is used to detect the real time temperature information of each subdivision of heat generating components and is sent to control unit, the control Unit processed controls the revolving speed of auxiliary motor according to real time temperature signal.
3. the control device of Wind turbines auxiliary motor according to claim 2, which is characterized in that the heat generating components Including generator, gear-box or current transformer;When the heat generating components is gear-box, corresponding subassembly includes lubricating oil, height Fast axis and slow-speed shaft.
4. the control device of Wind turbines auxiliary motor according to claim 2 or 3, which is characterized in that when auxiliary electricity When motivation belongs to double-speed motor, control unit controls two firing switcies of auxiliary motor according to real time temperature signal to realize Revolving speed adjustment.
5. the control device of Wind turbines auxiliary motor according to claim 2 or 3, which is characterized in that when auxiliary electricity When motivation belongs to Δ/Y starting, control auxiliary motor star and triangle switch to realize that revolving speed adjusts.
6. the control device of Wind turbines auxiliary motor according to claim 2 or 3, which is characterized in that when auxiliary electricity When motivation belongs to Y/YY starting, control auxiliary motor is respectively switched to change stator winding connection and realize revolving speed adjustment.
7. the control device of Wind turbines auxiliary motor according to claim 2 or 3, which is characterized in that when auxiliary electricity When motivation belongs to Δ/YY starting, control auxiliary motor is respectively switched to change stator winding connection and realize revolving speed adjustment.
CN201710961852.0A 2017-10-17 2017-10-17 A kind of control method and device of Wind turbines auxiliary motor CN109667731A (en)

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Publication number Priority date Publication date Assignee Title
US20070156361A1 (en) * 2004-04-30 2007-07-05 Minebea Co., Ltd. Self calibrating fan
EP2148089A1 (en) * 2007-05-18 2010-01-27 Mitsubishi Heavy Industries, Ltd. Wind-driven generator
CN101718278A (en) * 2009-09-14 2010-06-02 奇瑞汽车股份有限公司 Speed-regulating circuit of heat radiator and control method thereof and speed-regulating fan
CN102996487A (en) * 2012-12-21 2013-03-27 浙江宇视科技有限公司 Device for adjusting rotation speeds of fan
CN103791585A (en) * 2014-01-17 2014-05-14 苏州海特温控技术有限公司 Method for controlling external direct current fan of cabinet air conditioner
CN203608052U (en) * 2013-11-05 2014-05-21 浙江创新电机有限公司 2/6 pole duplex winding double-speed three-phase asynchronous motor
CN106704116A (en) * 2017-03-30 2017-05-24 河北工业大学 Cooling system of wind driven generator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070156361A1 (en) * 2004-04-30 2007-07-05 Minebea Co., Ltd. Self calibrating fan
EP2148089A1 (en) * 2007-05-18 2010-01-27 Mitsubishi Heavy Industries, Ltd. Wind-driven generator
CN101718278A (en) * 2009-09-14 2010-06-02 奇瑞汽车股份有限公司 Speed-regulating circuit of heat radiator and control method thereof and speed-regulating fan
CN102996487A (en) * 2012-12-21 2013-03-27 浙江宇视科技有限公司 Device for adjusting rotation speeds of fan
CN203608052U (en) * 2013-11-05 2014-05-21 浙江创新电机有限公司 2/6 pole duplex winding double-speed three-phase asynchronous motor
CN103791585A (en) * 2014-01-17 2014-05-14 苏州海特温控技术有限公司 Method for controlling external direct current fan of cabinet air conditioner
CN106704116A (en) * 2017-03-30 2017-05-24 河北工业大学 Cooling system of wind driven generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《钢铁企业电力设计手册》编委会: "《钢铁企业电力设计手册》", 31 January 1996, 冶金工业出版社 *

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