CN210490714U

CN210490714U - Variable pitch frequency converter of wind generating set and motor test platform

Info

Publication number: CN210490714U
Application number: CN201921367452.8U
Authority: CN
Inventors: 李东赫; 李东挥; 王江; 崔大勇; 王艳杰
Original assignee: Datang Tongliao Huolinhe New Energy Co ltd
Current assignee: Datang Tongliao Huolinhe New Energy Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-08
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a wind generating set becomes oar converter motor test platform, including the test subassembly, the test subassembly includes backup pad, second switch, power, third switch, fourth switch, contactor, first rectifier bridge, converter, IO module, fifth switch, chopper, second rectifier bridge, the backup pad is located the motor lower surface, the second switch, the third switch, the fourth switch and the fifth switch all install in the front surface of backup pad; the utility model discloses when the motor damages, through the second switch, start the power, rethread third switch, the continuous control contactor of fourth switch and fifth switch, first rectifier bridge, converter, IO module, chopper and second rectifier bridge, nimble control to converter and motor can realize carrying out the loading test to converter and motor that has maintained, and simulate the operational environment of converter on the fan completely, furthest's assurance test object's reliability.

Description

Variable pitch frequency converter of wind generating set and motor test platform

The technical field is as follows:

the utility model relates to a wind generating set specifically is a wind generating set becomes oar converter and motor test platform with equipment technical field.

Background art:

the variable pitch frequency converter converts various power supplies into a power supply of a variable pitch motor, namely an inversion and rectification process, and a series of power supply conversion such as voltage transformation is also included in the process. Finally, the logic control part of the frequency converter collects relevant data and then carries out calculation and judgment, the variable pitch motor carries out corresponding action, and the safety protection loop carries out supervision and protection on the whole variable pitch action; however, in the working process of the existing variable pitch frequency converter, a large amount of heat can be generated by electronic elements inside the variable pitch frequency converter, the time is long, and the variable pitch frequency converter is easy to damage.

After the variable pitch motor is damaged, when the existing variable pitch motor test platform tests the variable pitch motor, the running environment of the frequency converter on the fan cannot be completely simulated, and the reliability of maintaining the frequency converter is low.

Therefore, a variable pitch frequency converter of the wind generating set and a motor test platform are provided.

The utility model has the following contents:

an object of the utility model is to provide a wind generating set becomes oar converter and motor test platform to solve the problem that proposes in the above-mentioned background art.

The utility model discloses by following technical scheme implement: a wind generating set becomes oar converter includes: a body assembly including a base plate, a housing, and a motor;

the heat dissipation assembly comprises two heat dissipation fans, two heat dissipation fins, through holes, a dust screen, a first switch and semiconductor refrigeration pieces, wherein the two heat dissipation fans are arranged on one side of the shell, the semiconductor refrigeration pieces are arranged on the other side of the shell, and the through holes are uniformly formed in the upper surface of the shell.

As further preferable in the present technical solution: the shell is arranged on the upper surface of the bottom plate, and the motor is positioned on one side of the bottom plate.

As further preferable in the present technical solution: the dustproof net is installed in the through hole, the first switch is installed on the front surface of the shell, and the heat radiation fan and the electrical input end of the semiconductor refrigeration piece are electrically connected with the electrical output end of the first switch.

The utility model also provides a wind generating set becomes oar converter motor test platform, including the test subassembly, the test subassembly includes backup pad, second switch, power, third switch, fourth switch, contactor, first rectifier bridge, converter, IO module, fifth switch, chopper, second rectifier bridge, the backup pad is located the motor lower surface, the second switch the third switch the fourth switch with the fifth switch all install in the front surface of backup pad, the power the contactor first rectifier bridge the converter the IO module the chopper with the second rectifier bridge all install in the upper surface of backup pad.

As further preferable in the present technical solution: the electrical output end of the second switch is electrically connected with the electrical input end of the power supply, the electrical input ends of the third switch and the fourth switch are electrically connected with the electrical output end of the power supply, the electrical output end of the fifth switch is electrically connected with the electrical input end of the I/O module, the electrical output end of the third switch is electrically connected with the electrical input end of the contactor, and the electrical output end of the fourth switch is electrically connected with the electrical input end of the second rectifier bridge.

As further preferable in the present technical solution: the contactor is connected with the first rectifying bridge, the first rectifying bridge and the chopper are both connected with the current transformer, the current transformer is connected with the motor, the I/O module is connected with the current transformer, and the second rectifying bridge is connected with the motor.

The utility model has the advantages that:

1. the utility model discloses a radiator fan gives off the heat that produces in with the casing to the external world, and cooperation radiating fin semiconductor refrigeration piece and through-hole make the heat that electronic component work produced in the casing, can give off fast to the external world, prevent to become the heat damage that electronic component work produced in the oar converter and become the condition appearance of electronic component in the oar converter.

2. The utility model discloses when the motor damages, prevent the backup pad with the motor on, through the second switch, start the power, rethread third switch, the continuous control contactor of fourth switch and fifth switch, first rectifier bridge, the converter, the IO module, chopper and second rectifier bridge, nimble control to converter and motor can realize carrying out the loading test to converter and motor that has maintained, and simulate the operational environment of converter on the fan completely, furthest's assurance test object's reliability.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the housing of the present invention;

FIG. 3 is a schematic structural diagram of a testing assembly according to the present invention;

fig. 4 is a structural frame diagram of the middle test assembly of the present invention.

In the figure: 10. a body assembly; 11. a base plate; 12. a housing; 13. a motor; 20. a heat dissipating component; 21. a heat radiation fan; 22. a heat dissipating fin; 23. a through hole; 24. a dust screen; 25. a first switch; 26. a semiconductor refrigeration sheet; 100. testing the component; 101. a support plate; 102. a second switch; 103. a power source; 104. a third switch; 105. a fourth switch; 106. a contactor; 107. a first rectifier bridge; 108. a current transformer; 109. an I/O module; 110. a fifth switch; 111. a chopper; 112. a second rectifier bridge.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a wind generating set becomes oar converter includes: a main body assembly 10, the main body assembly 10 including a base plate 11, a housing 12, and a motor 13;

radiator unit 20, radiator unit 20 includes radiator fan 21, radiating fin 22, through-hole 23, dust screen 24, first switch 25 and semiconductor refrigeration piece 26, radiator fan 21 sets up two altogether radiator fan 21 install in one side of casing 12, semiconductor refrigeration piece 26 install in the opposite side of casing 12, through-hole 23 evenly sets up in the upper surface of casing 12.

In this embodiment, specifically: the shell 12 is mounted on the upper surface of the bottom plate 11, and the motor 13 is located on one side of the bottom plate 11; the base plate 11 provides support for the housing 12, and the electronics within the housing 12 are used to connect to the motor 13.

In this embodiment, specifically: the dust screen 24 is installed in the through hole 23, the first switch 25 is installed on the front surface of the housing 12, and the electrical input ends of the heat dissipation fan 21 and the semiconductor refrigeration sheet 26 are electrically connected with the electrical output end of the first switch 25; the dust screen 24 is used to prevent external dust from entering the housing 12, and the first switch 25 is used to control the on and off of the cooling fan 21 and the semiconductor cooling plate 26.

The utility model also provides a variable pitch frequency converter motor test platform of a wind generating set as shown in figures 1-4, which comprises a test component 100, the test assembly 100 includes a support plate 101, a second switch 102, a power source 103, a third switch 104, a fourth switch 105, a contactor 106, a first rectifier bridge 107, a current transformer 108, an I/O module 109, a fifth switch 110, a chopper 111, a second rectifier bridge 112, the support plate 101 is positioned on the lower surface of the motor 13, the second switch 102, the third switch 104, the fourth switch 105 and the fifth switch 110 are all mounted on the front surface of the support plate 101, the power supply 103, the contactor 106, the first rectifying bridge 107, the current transformer 108, the I/O module 109, the chopper 111, and the second rectifying bridge 112 are all mounted on the upper surface of the support plate 101.

In this embodiment, specifically: an electrical output terminal of the second switch 102 is electrically connected to an electrical input terminal of the power supply 103, electrical input terminals of the third switch 104 and the fourth switch 105 are electrically connected to an electrical output terminal of the power supply 103, an electrical output terminal of the fifth switch 110 is electrically connected to an electrical input terminal of the I/O module 109, an electrical output terminal of the third switch 104 is electrically connected to an electrical input terminal of the contactor 106, and an electrical output terminal of the fourth switch 105 is electrically connected to an electrical input terminal of the second rectifier bridge 112; the second switch 102 is used to control whether the power supply 103 is activated, the fifth switch 110 is used to control whether the I/O module 109 is activated, the third switch 104 is used to control whether the contactor 106 is activated, and the fourth switch 105 is used to control whether the second rectifier bridge 112 is activated.

In this embodiment, specifically: the contactor 106 is connected with the first rectifying bridge 107, the first rectifying bridge 107 and the chopper 111 are both connected with the converter 108, the converter 108 is connected with the motor 13, the I/O module 109 is connected with the converter 108, and the second rectifying bridge 112 is connected with the motor 13.

According to the working principle or the structural principle, the heat dissipation fan 21 can dissipate heat generated in the shell 12 to the outside through air as a medium, the heat in the shell 12 is led into the outside through the matching heat dissipation fins 22, when the semiconductor refrigeration piece 26 works, the heat on the shell 12 can be absorbed, the heat is dissipated to the outside through the other side of the semiconductor refrigeration piece 26, the heat generated by the electronic components in the shell 12 can be rapidly dissipated to the outside through the matching through hole 23, the condition that the electronic components in the pitch-variable frequency converter are damaged due to the heat generated by the electronic components in the pitch-variable frequency converter is prevented, when the motor 13 is damaged, the motor 13 is prevented from being arranged on the supporting plate 101, the contactor 106, the first rectifier bridge 107, the converter 108, the I/O module 109 and the fifth switch 110 are continuously controlled through the second switch 102 and the starting power supply 103, and the third switch 104, the fourth switch 105 and the fifth, The chopper 111 and the second rectifier bridge 112 flexibly control the frequency converter and the motor 13, can realize loading test on the maintained frequency converter and the motor 13, completely simulate the running environment of the frequency converter on a fan, and ensure the reliability of a test object to the maximum extent.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wind generating set becomes oar converter which characterized in that includes: a body assembly (10), the body assembly (10) comprising a base plate (11), a housing (12) and a motor (13);

radiator unit (20), radiator unit (20) include radiator fan (21), radiating fin (22), through-hole (23), dust screen (24), first switch (25) and semiconductor refrigeration piece (26), radiator fan (21) sets up two altogether, two radiator fan (21) install in one side of casing (12), semiconductor refrigeration piece (26) install in the opposite side of casing (12), through-hole (23) are evenly seted up in the upper surface of casing (12).

2. The variable pitch frequency converter of the wind generating set according to claim 1, wherein: the shell (12) is installed on the upper surface of the bottom plate (11), and the motor (13) is located on one side of the bottom plate (11).

3. The variable pitch frequency converter of the wind generating set according to claim 1, wherein: the dustproof net (24) is arranged in the through hole (23), the first switch (25) is arranged on the front surface of the shell (12), and the electric input ends of the heat radiation fan (21) and the semiconductor refrigeration piece (26) are electrically connected with the electric output end of the first switch (25).

4. A wind generating set pitch transducer motor test platform according to any one of claims 1-3, comprising a test assembly (100), characterized in that: the test component (100) comprises a support plate (101), a second switch (102), a power supply (103), a third switch (104), a fourth switch (105), a contactor (106), a first rectifying bridge (107), a current transformer (108), an I/O module (109), a fifth switch (110), a chopper (111) and a second rectifying bridge (112), the support plate (101) is positioned on the lower surface of the motor (13), the second switch (102), the third switch (104), the fourth switch (105) and the fifth switch (110) are all arranged on the front surface of the support plate (101), the power supply (103), the contactor (106), the first rectifying bridge (107), the converter (108), the I/O module (109), the chopper (111), and the second rectifying bridge (112) are all mounted on the upper surface of the support plate (101).

5. The test platform for the motor of the variable pitch frequency converter of the wind generating set according to claim 4, characterized in that: an electrical output end of the second switch (102) is electrically connected with an electrical input end of the power supply (103), electrical input ends of the third switch (104) and the fourth switch (105) are electrically connected with an electrical output end of the power supply (103), an electrical output end of the fifth switch (110) is electrically connected with an electrical input end of the I/O module (109), an electrical output end of the third switch (104) is electrically connected with an electrical input end of the contactor (106), and an electrical output end of the fourth switch (105) is electrically connected with an electrical input end of the second rectifier bridge (112).

6. The test platform for the motor of the variable pitch frequency converter of the wind generating set according to claim 4, characterized in that: the contactor (106) is connected with the first rectifying bridge (107), the first rectifying bridge (107) and the chopper (111) are both connected with the converter (108), the converter (108) is connected with the motor (13), the I/O module (109) is connected with the converter (108), and the second rectifying bridge (112) is connected with the motor (13).