CN210898549U

CN210898549U - High voltage ride through control equipment for wind power full-power converter

Info

Publication number: CN210898549U
Application number: CN201921265123.2U
Authority: CN
Inventors: 武鑫; 吕佃顺; 王立鹏; 谷海涛
Original assignee: Jiangsu Guoke Intelligent Electric Co ltd
Current assignee: Jiangsu Guoke Intelligent Electric Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-06-30
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a wind-force full power converter high voltage passes through controlgear, including the stabiliser, wave filter and mount, the wave filter passes through the mount fixed clip and connects in the top of stabiliser, the constant head tank has been seted up to the bilateral symmetry of mount inner wall, the both sides fixedly connected with locating piece of wave filter, two locating pieces respectively with two constant head tank sliding connection, first through-hole has been seted up to the bilateral inner wall symmetry of constant head tank, the inner chamber of first through-hole is equipped with locking Assembly, the second through-hole has been seted up to one side of locating piece, locking Assembly and second through-hole activity interlude are connected, the top fixed interlude of stabiliser is connected with the wire plug, the bottom interlude of wave filter is connected with the. The utility model discloses utilize stabiliser and the wave filter of setting to carry out a steady voltage and filtering operation to the output voltage of converter to guarantee converter output voltage's stability, eliminate the influence of harmonic in the output electric energy.

Description

High voltage ride through control equipment for wind power full-power converter

Technical Field

The utility model relates to a wind power generation field, in particular to wind-force full power converter high voltage ride through controlgear.

Background

The wind power generator is a power device which converts wind energy into mechanical energy, the mechanical energy drives the rotor to rotate, and alternating current is finally output, and the power converter is used as an interface of the wind power generator set and a power grid, so that the wind power generator set is controlled, high-quality electric energy is transmitted to the power grid, and functions of low-voltage ride through, high-voltage ride through and the like are realized.

When the existing converter is in sudden power grid sudden-rise fault, due to the limitation of the response speed of a current controller, current impact can be generated in the transient state of voltage rise and recovery, the bus is shut down in overvoltage in serious conditions, meanwhile, the output electric energy of the converter contains harmonic waves, the power grid can be influenced, overmodulation can occur in the steady state period of voltage rise, the output current on the grid side is out of control, and a large amount of harmonic current can cause overcurrent shutdown in serious conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind-force full power converter high voltage ride through controlgear to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wind-force full power converter high voltage passes through controlgear, includes stabiliser, wave filter and mount, the wave filter passes through the mount fixed clip and connects in the top of stabiliser, the constant head tank has been seted up to the bilateral symmetry of mount inner wall, the both sides fixedly connected with locating piece of wave filter, two the locating piece respectively with two constant head tank sliding connection, first through-hole has been seted up to the bilateral inner wall symmetry of constant head tank, the inner chamber of first through-hole is equipped with locking Assembly, the second through-hole has been seted up to one side of locating piece, locking Assembly and second through-hole activity interlude are connected.

Preferably, the top end of the voltage stabilizer is fixedly connected with a wire plug in an inserting mode, the bottom end of the filter is connected with a wire insertion tube in an inserting mode, and the wire plug is movably connected with the wire insertion tube in an inserting mode.

Preferably, the locking assembly comprises a fixed plate, a limiting rod, a sliding plate and a reset spring, the fixed plate is fixedly connected to the inner wall of the first through hole, the limiting rod is slidably and alternately connected to the inner cavity of the first through hole, the limiting rod is slidably and alternately connected with the fixed plate, the sliding plate is slidably connected to the inner wall of the first through hole, the sliding plate is fixedly and alternately connected with the limiting rod, the reset spring is sleeved on the outer wall of the limiting rod, and two ends of the reset spring are respectively fixedly connected with the fixed plate and the sliding plate.

Preferably, one end of the limiting rod penetrates through the first through hole and is fixedly connected with a pull handle, anti-skidding textures are arranged on the outer wall of the pull handle, and the other end of the limiting rod is movably connected with the second through hole in an inserting mode.

Preferably, the fixing frame is made of ceramic materials.

Preferably, the bottom end of the voltage stabilizer is fixedly connected with a base, and fixing pieces are fixedly connected to two sides of the base.

The utility model discloses a technological effect and advantage:

1. the utility model can carry out a voltage stabilization and filtering operation on the output voltage of the converter by utilizing the arranged voltage stabilizer and the filter, thereby ensuring the stability of the output voltage of the converter and eliminating the influence of harmonic waves in the output electric energy;

2. the utility model discloses utilize mount, constant head tank, locating piece and the locking Assembly who sets up between stabiliser and the wave filter to realize the quick assembly disassembly between stabiliser and the wave filter, reduce the loaded down with trivial details of stabiliser and wave filter installation and dismantlement, improve the convenience that the dismantlement was overhauld and is changed between stabiliser and the wave filter.

Drawings

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

Fig. 2 is a schematic view of the top view structure of the present invention.

Fig. 3 is a schematic side sectional structure view of the filter of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a voltage regulator; 2. a filter; 3. inserting a guide wire into a tube; 4. a wire plug; 5. a fixed mount; 6. positioning a groove; 7. positioning blocks; 8. a first through hole; 9. a fixing plate; 10. a limiting rod; 11. a sliding plate; 12. a return spring; 13. a second through hole; 14. pulling a handle; 15. a base.

Detailed Description

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.

The utility model provides a wind power full power converter high voltage ride through control equipment as shown in figures 1-4, which comprises a voltage stabilizer 1 with the model of TND3-5KVA, a filter 2 with the model of JLD250V200AB-12F3 and a fixing frame 5, wherein the filter 2 is fixedly clamped at the top end of the voltage stabilizer 1 through the fixing frame 5, the fixing frame 5 is made of ceramic material and plays a role of insulation and heat insulation, positioning grooves 6 are symmetrically arranged at two sides of the inner wall of the fixing frame 5, positioning blocks 7 are fixedly connected with two sides of the filter 2, the two positioning blocks 7 are respectively connected with the two positioning grooves 6 in a sliding way, the positioning grooves 6 and the positioning blocks 7 are matched for use, so that the fast positioning clamping between the voltage stabilizer 1 and the filter 2 can be realized, first through holes 8 are symmetrically arranged at the inner walls at two sides of the positioning grooves 6, the installation, second through hole 13 has been seted up to one side of locating piece 7, and locking Assembly is connected with second through hole 13 activity interlude, utilizes the use of locking Assembly and second through hole 13 to lock fixedly between wave filter 2 and the mount 5.

The top fixed interlude of stabiliser 1 is connected with wire plug 4, and the bottom interlude of wave filter 2 is connected with wire intubate 3, and wire plug 4 is connected with wire intubate 3 activity interlude, and wire plug 4 and wire intubate 3 can realize the electric connection between stabiliser 1 and the wave filter 2 when wave filter 2 inserts mount 5.

The locking assembly comprises a fixed plate 9, a limiting rod 10, a sliding plate 11 and a reset spring 12, wherein the fixed plate 9 is fixedly connected to the inner wall of the first through hole 8, the limiting rod 10 is slidably inserted and connected to the inner cavity of the first through hole 8, the limiting rod 10 is slidably inserted and connected with the fixed plate 9, the sliding plate 11 is slidably connected to the inner wall of the first through hole 8, the sliding plate 11 is fixedly inserted and connected with the limiting rod 10, the reset spring 12 is sleeved on the outer wall of the limiting rod 10, two ends of the reset spring 12 are respectively fixedly connected with the fixed plate 9 and the sliding plate 11, one end of the limiting rod 10 penetrates through the first through hole 8 and is fixedly connected with a pull handle 14, the outer wall of the pull handle 14 is provided with anti-slip textures, the other end of the limiting rod 10 is movably inserted and connected with a second through hole 13, when the filter 2 is inserted into the fixed frame 5, the pull handle 14 is manually, meanwhile, the sliding plate 11 moves along with the limiting rod 10 to drive the return spring 12 to compress, after the filter 2 is completely inserted into the fixing frame 5, the positioning block 7 is completely inserted into the positioning groove 6, the first through hole 8 and the second through hole 13 are located at the same linear position, the pull handle 14 is loosened, the return spring 12 loses extrusion force to reset, the sliding block 11 and the limiting rod 10 are driven to move reversely, one end of the limiting rod 10 is inserted into the second through hole 13, a limiting effect is achieved on the positioning block 7, fixing between the filter 2 and the fixing frame 5 is kept, only the pull handle 14 needs to be pulled to drive one end of the limiting rod 10 to move out of the second through hole 13 during disassembly, unlocking between the positioning block 7 and the positioning groove 6 can be achieved, the filter 2 can be directly taken out, and convenience in disassembly and assembly of the filter 2 is.

The bottom fixedly connected with base 15 of stabiliser 1, the both sides fixedly connected with mounting of base 15, the installation of stabiliser 1 of being convenient for is fixed.

This practical theory of operation: when the voltage or load input into the voltage stabilizer 1 from the converter changes, a control circuit in the voltage stabilizer 1 performs sampling, comparison and amplification, then drives a servo motor to rotate, so that the position of a carbon brush of the voltage regulator is changed, the stability of output voltage is kept by automatically adjusting the turn ratio of a coil, and meanwhile, a filter 2 effectively filters a frequency point of specific frequency or frequencies except the frequency point in a circuit at the output end of the voltage stabilizer 1 through a filter circuit consisting of an internal capacitor, an inductor and a resistor to obtain a power signal of the specific frequency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a wind-force full power converter high voltage ride through controlgear, includes stabiliser (1), wave filter (2) and mount (5), its characterized in that: filter (2) pass through mount (5) fixed joint in the top of stabiliser (1), constant head tank (6) have been seted up to the bilateral symmetry of mount (5) inner wall, the both sides fixedly connected with locating piece (7) of filter (2), two locating piece (7) respectively with two constant head tank (6) sliding connection, first through-hole (8) have been seted up to the bilateral inner wall symmetry of constant head tank (6), the inner chamber of first through-hole (8) is equipped with locking Assembly, second through-hole (13) have been seted up to one side of locating piece (7), locking Assembly and second through-hole (13) activity interlude are connected.

2. The wind power converter high voltage ride through control device of claim 1, wherein: the top fixed interlude of stabiliser (1) is connected with wire plug (4), the bottom interlude of wave filter (2) is connected with wire intubate (3), wire plug (4) and wire intubate (3) activity interlude are connected.

3. The wind power converter high voltage ride through control device of claim 1, wherein: the locking assembly comprises a fixing plate (9), a limiting rod (10), a sliding plate (11) and a reset spring (12), the fixing plate (9) is fixedly connected to the inner wall of the first through hole (8), the limiting rod (10) is slidably inserted into the inner cavity of the first through hole (8), the limiting rod (10) is slidably inserted into the fixing plate (9), the sliding plate (11) is slidably connected to the inner wall of the first through hole (8), the sliding plate (11) is fixedly inserted into the limiting rod (10) and connected with the limiting rod (10), the reset spring (12) is sleeved on the outer wall of the limiting rod (10), and two ends of the reset spring (12) are fixedly connected with the fixing plate (9) and the sliding plate (11) respectively.

4. A wind power converter high voltage ride through control apparatus according to claim 3, wherein: one end of the limiting rod (10) penetrates through the first through hole (8) and is fixedly connected with a pull handle (14), anti-skidding textures are arranged on the outer wall of the pull handle (14), and the other end of the limiting rod (10) is movably connected with the second through hole (13) in an inserting mode.

5. The wind power converter high voltage ride through control device of claim 1, wherein: the fixing frame (5) is made of ceramic materials.

6. The wind power converter high voltage ride through control device of claim 1, wherein: the bottom fixedly connected with base (15) of stabiliser (1), the both sides fixedly connected with mounting of base (15).