CN115000962A - Passive power filter for power grid power quality active defense system - Google Patents

Abstract

The invention relates to the technical field of power grid electric energy, in particular to a passive power filter for a power grid electric energy quality active defense system, which comprises an outer box body, wherein a filter unit and a bottom control frame are arranged in the outer box body, the bottom control frame is connected below the filter unit and comprises a bracket and a walking frame, the filter unit can be conveniently disassembled and assembled on the outer box body, so that the quality of power maintenance is improved.

Description

Passive power filter for power grid power quality active defense system

Technical Field

The invention relates to the technical field of power grid electric energy, in particular to a passive power filter for a power grid electric energy quality active defense system.

Background

With the high-speed development of large-scale urban economy, the load structure of a power grid is greatly changed, on one hand, the wide application of the power electronic technology enables the proportion of nonlinear load users in the power grid to be continuously improved, such as nonlinear loads of direct-current transmission, frequency conversion devices, electrified railways and the like, voltage and current waveform distortion is caused, the power quality of the power grid is reduced, and the safe and stable operation of the system is seriously influenced; on the other hand, with the upgrade of the urban industry, the proportion of high-tech and high-value-added production enterprises such as automobile assembly, microelectronics, large-scale high-speed data servers and the like in the total industrial output value will increase continuously. And these high and new technology enterprises put very high demands on the quality of power supply.

The active defense system of the power quality of the power grid in the prior art relates to the putting into use of a passive power filter, the passive power filter in the traditional technology realizes the regulation and control work of the active defense system of the power quality of the whole power grid by arranging a plurality of filter working units in a power box, the passive power filter is improved and designed, the functions of convenient use and safe use are improved, the passive power filter works safely and stably in the power grid defense system, and the passive power filter has important significance, has the functions of convenient disassembly and assembly and high-temperature monitoring, and plays a safe and reliable role in the power grid defense system.

Disclosure of Invention

The invention aims to provide a passive power filter for a power quality active defense system of a power grid, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a passive power filter that electric wire netting electric energy quality initiative defense system used, includes the outer box, be provided with filter unit and end accuse frame in the outer box, end accuse frame is connected to filter unit below, end accuse frame includes bracket, walking frame, heat-conducting plate and thermal control spare, the bracket is fixed on the inner wall of outer box, and the top of bracket is connected with the walking frame, and walking frame top is fixed with the heat-conducting plate, and the heat-conducting plate fixes in filter unit bottom, and the one end of walking frame is connected with the thermal control spare, and thermal control spare upper end and heat-conducting plate are connected, the walking frame includes first horizontal pole, gyro wheel spare and first vertical pole, the equal first vertical pole of fixedly connected with in both ends of first horizontal pole, the transmission connection has a plurality of evenly distributed's gyro wheel spare on the first vertical pole, gyro wheel spare upper end and filter unit connection, gyro wheel spare lower extreme and bracket contact.

Preferably, the bracket includes directional concave rail, bow-shaped piece, brake lever frame, second vertical pole, holds in the palm pole, stop device and second horizontal pole, the below of filter unit is provided with two parallel distribution's directional concave rail, and one side parallel distribution of directional concave rail has the second vertical pole, and opposite side parallel distribution has brake lever frame, in the gyro wheel spare lower extreme extended to directional concave rail, fixedly connected with held in the palm the pole between two directional concave rails, fixedly connected with second horizontal pole between two second vertical poles, the bow-shaped piece of fixedly connected with between two brake lever frames, be provided with a plurality of evenly distributed's stop device on the directional concave rail.

Preferably, the thermal control part comprises a Z-shaped braking plate, a conical body and a limiting seat, the Z-shaped braking plate penetrates through a square hole formed in a plate body of the heat-conducting plate, one end of the Z-shaped braking plate is contacted with the conical body with a plurality of uniform distributions, the limiting seat is arranged between the conical body and the heat-conducting plate, the limiting seat is in the shape of an L-shaped plate with a plurality of uniform distributions, the limiting seat is fixed above the heat-conducting plate, and the other end of the Z-shaped braking plate is contacted with the first cross rod.

Preferably, the second longitudinal rod comprises a side control rod and a limiting block, the limiting block is fixed on the directional concave rail, a square hole is formed in the limiting block, the side control rod penetrates through the square hole of the limiting block, one end of the side control rod is fixed on the second cross rod, the side control rod is prism-shaped, a plurality of arc-shaped convex sections are arranged on a cylinder body, the arc-shaped convex sections on the side control rod are in contact with the limiting device, the brake rod frame comprises an L-shaped inserted rod, a first spring, an L-shaped direction plate, an inner rod and a brake rod, one end of the brake rod is fixed on the bow piece, one side of the brake rod is fixedly connected with a plurality of L-shaped inserted rods which are uniformly distributed, one end of each L-shaped inserted rod extends into the limiting device, the other end of each L-shaped inserted rod is fixedly connected with the inner rod, the L-shaped direction plate is arranged on one side of the directional concave rail, a through hole is formed in each L-shaped direction plate, the inner rod is movably sleeved in the through hole of each L-shaped direction plate, a first spring is padded between the L-shaped direction plate and the L-shaped inserting rod, the first spring is sleeved on the inner rod, and one side plane of the brake rod is in contact with one side plane of the L-shaped direction plate.

Preferably, the roller part comprises an L-shaped short plate, a contact element, a conductive cylinder and a metal wheel, the L-shaped short plate is fixed to the bottom of the filter unit, a through hole is formed in one end of the L-shaped short plate, the conductive cylinder is movably sleeved in the through hole, the metal wheel is fixedly connected to one end of the conductive cylinder, the metal wheel extends into the directional concave rail, the conductive cylinder penetrates through the middle of the metal wheel, a limiting sleeve is fixed to the conductive cylinders on two sides of the L-shaped short plate, the other end of the conductive cylinder is in contact with the contact element, one end of the contact element extends into the filter unit, a prism hole is formed in the L-shaped short plate, and a first longitudinal rod is movably sleeved in the prism hole.

Preferably, stop device includes L type piece, second spring, screens body, side accuse piece and lifts the square, and L type piece one end is fixed on directional concave rail, and the activity has cup jointed the screens body in seting up through-hole and the through-hole on the L type piece, and the screens body shape is cylinder one end body coupling hemisphere body, and the movable sleeve has the second spring on screens body and the cylinder, and the second spring fills up between screens body and L type piece, and one side contact of the screens body has the side accuse piece, and side accuse piece one end fixedly connected with lifts the square, lifts the square and runs through directional concave rail.

Preferably, the shape of the directional concave rail is a concave long rail, a plurality of semi-ring bending sections which are uniformly distributed are arranged in the rail, a square hole is formed in the middle of each semi-ring bending section of the directional concave rail, the lifting square block is movably sleeved in each square hole, one end of each L-shaped inserted rod extends into a square groove formed in the lifting square block, the side control piece is in a shape that one end of each L-shaped plate is integrally connected with an arc-shaped plate, and the arc-shaped plate on the side control piece is in contact with a hemisphere on the clamping body.

Preferably, the contact piece includes metal post, horizontal push pedal, L type guide post, interception diaphragm, fourth spring and metal top plate, the upper end of metal post extends to in the filter unit, the lower extreme fixedly connected with metal top plate of metal post, metal top plate lower extreme is taken on the conducting cylinder, the contact of metal top plate upper end has the fourth spring, the contact of fourth spring upper end has the interception diaphragm, interception diaphragm one end fixed connection L type short slab, set up the through-hole on the interception diaphragm, and the activity cup joints the metal post in the through-hole, the fourth spring housing is on the metal post, one side contact of metal post has horizontal push pedal, horizontal push pedal is fixed on first vertical pole, the opposite side fixedly connected with L type guide post of metal post, L type guide post activity cup joints in the pore of seting up on the interception diaphragm.

Preferably, the metal top plate is Z-shaped and one end of the plate body is provided with an arc bending section, the arc bending section on the metal top plate is lapped on the conductive cylinder, and the horizontal push plate part extends into a triangular groove formed in the metal column.

Compared with the prior art, the invention has the beneficial effects that:

1. in addition, mechanical temperature control real-time monitoring equipment is arranged in the walking frame, and compared with the temperature monitoring of an electronic instrument in the prior art, the mechanical temperature control device replaces the electronic instrument, so that the economic input cost in the electric energy of a power grid can be directly reduced;

2. in the process of inserting the filter unit into the outer box body, the metal wheels can linearly move when rolling to pass through the half ring sections on the directional concave rails, when all the metal wheels are in place at the specified positions on the directional concave rails, the filter unit is pressed against the arched sheet at the moment, and the control on the limiting device is triggered, so that the lifting square can fall down, the metal wheels smoothly fall into the half ring sections of the directional concave rails, and the clamping body is inserted into the conductive cylinder, so that the effect of automatically regulating and controlling the clamping position is realized.

Drawings

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

FIG. 2 is a schematic structural view of a bottom control frame;

FIG. 3 is a thermal control position profile;

FIG. 4 is a schematic view of a walking frame structure;

FIG. 5 is a schematic view of a bracket structure;

FIG. 6 is a schematic view of the structure at A in FIG. 2;

FIG. 7 is a schematic view of a brake lever bracket;

FIG. 8 is a schematic view of a roller member;

FIG. 9 is a schematic view of the structure of the position limiting device;

FIG. 10 is a schematic view of a contact structure;

FIG. 11 is a schematic view of a side control panel;

FIG. 12 is a diagram of a lift block position distribution.

In the figure: the filter comprises an outer box body 1, a filter unit 2, a bottom control frame 3, a bracket 4, a walking frame 5, a heat conduction plate 6, a heat control part 7, a side control rod 8, a limiting block 9, a first cross rod 10, a roller part 11, a first longitudinal rod 12, a directional concave rail 13, an arched piece 14, a brake rod frame 15, a second longitudinal rod 16, a lifting rod 17, a limiting device 18, a second cross rod 19, a Z-shaped brake plate 20, a conical body 21, a limiting seat 22, an L-shaped inserting rod 23, a first spring 24, an L-shaped direction plate 25, an inner rod 26, a brake rod 27, an L-shaped short plate 28, a contact element 29, a conductive cylinder 30, a metal wheel 31, an L-shaped piece 32, a second spring 33, a clamping body 34, a side control piece 35, a lifting square block 36, a metal column 37, a transverse pushing plate 38, an L-shaped guide column 39, a transverse plate 40, a fourth spring 41 and a metal top plate 42.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 12, the present invention provides a technical solution: a passive power filter for a power quality active defense system of a power grid comprises an outer box body 1, a filter unit 2 and a bottom control frame 3 are arranged in the outer box body 1, the bottom control frame 3 is connected below the filter unit 2, the bottom control frame 3 comprises a bracket 4, a walking frame 5, a heat conduction plate 6 and a heat control piece 7, the bracket 4 is fixed on the inner wall of the outer box body 1, the walking frame 5 is connected above the bracket 4, the heat conduction plate 6 is fixed above the walking frame 5, the heat conduction plate 6 is fixed at the bottom of the filter unit 2, one end of the walking frame 5 is connected with the heat control piece 7, the upper end of the heat control piece 7 is connected with the heat conduction plate 6, the walking frame 5 comprises a first transverse rod 10, a roller piece 11 and a first longitudinal rod 12, the two ends of the first transverse rod 10 are fixedly connected with the first longitudinal rod 12, a plurality of roller pieces 11 which are uniformly distributed are in a transmission way on the first longitudinal rod 12, the upper end of the roller piece 11 is connected with the filter unit 2, the lower end of the roller member 11 is in contact with the bracket 4.

The bracket 4 comprises an oriented concave rail 13, an arched piece 14, a brake rod frame 15, a second longitudinal rod 16, a lifting rod 17, a limiting device 18 and a second transverse rod 19, two oriented concave rails 13 which are distributed in parallel are arranged below the filter unit 2, the second longitudinal rod 16 is distributed in parallel on one side of each oriented concave rail 13, the brake rod frame 15 is distributed in parallel on the other side, the lower end of the roller piece 11 extends into the oriented concave rails 13, the lifting rod 17 is fixedly connected between the two oriented concave rails 13, the second transverse rod 19 is fixedly connected between the two second longitudinal rods 16, the arched piece 14 is fixedly connected between the two brake rod frames 15, and the limiting devices 18 which are distributed uniformly are arranged on the oriented concave rails 13.

The heat control part 7 comprises a Z-shaped brake plate 20, a conical body 21 and a limiting seat 22, the Z-shaped brake plate 20 penetrates through a square hole formed on a plate body of the heat conducting plate 6, one end of the Z-shaped brake plate 20 is contacted with a plurality of conical bodies 21 which are uniformly distributed, the limiting seat 22 is arranged between the conical bodies 21 and the heat conducting plate 6, the limiting seat 22 is in the shape of a ladder-shaped cylinder outer wall upper fixing ring and is provided with a plurality of L-shaped plates which are uniformly distributed, the limiting seat 22 is fixed above the heat conducting plate 6, the other end of the Z-shaped brake plate 20 is contacted with the first cross rod 10, as can be understood by referring to figures 2 and 6, the heat conducting plate 6 and the limiting seat 22 are both made of sensitive heat conducting materials in the prior art, part of heat generated in the working process of the filter unit 2 is transferred to the heat conducting plate 6 and then is transferred to the conical body 21 through the limiting seat 22, the conical body 21 is made of a material which is sensitive to expand with heat and contract with cold in the prior art, and the conical body 21 expands under heat, under the support of spacing seat 22, the toper body 21 shape grow, and then toper body 21 jack-up Z type braking plate 20 that rises, Z type braking plate 20 goes up and drives first horizontal pole 10, and first horizontal pole 10 removes and drives first vertical pole 12, and then triggers the control to gyro wheel spare 11.

The second longitudinal rod 16 comprises a side control rod 8 and a limiting block 9, the limiting block 9 is fixed on the directional concave rail 13, a square hole is formed in the limiting block 9, the side control rod 8 penetrates through the square hole of the limiting block 9, one end of the side control rod 8 is fixed on the second cross rod 19, the side control rod 8 is prism-shaped and is provided with a plurality of arc-shaped convex sections, the arc-shaped convex sections on the side control rod 8 are contacted with a limiting device 18, the braking rod frame 15 comprises an L-shaped inserting rod 23, a first spring 24, an L-shaped direction plate 25, an inner rod 26 and a braking rod 27, one end of the braking rod 27 is fixed on the arch-shaped sheet 14, one side of the braking rod 27 is fixedly connected with a plurality of L-shaped inserting rods 23 which are uniformly distributed, one end of each L-shaped inserting rod 23 extends into the limiting device 18, the other end of each L-shaped inserting rod 23 is fixedly connected with the inner rod 26, one side of each L-shaped inserting rod 23 is provided with the L-shaped direction plate 25, each L-shaped direction plate 25 is fixed on the directional concave rail 13, offer the through-hole on the L type direction board 25, interior pole 26 activity cup joints in the through-hole of L type direction board 25, it has first spring 24 to fill up between L type direction board 25 and the L type inserted bar 23, first spring 24 overlaps on interior pole 26, one side plane of brake lever 27 and one side plane contact of L type direction board 25, refer to fig. 7 and understand, the spatial position management and control to brake lever 27 is realized to the design like this, make brake lever 27 only can carry out axial displacement at the certain limit, brake lever 27 drives L type inserted bar 23 promptly, the directional of control L type inserted bar 23 removes.

The roller piece 11 comprises an L-shaped short plate 28, a contact element 29, a conductive cylinder 30 and a metal wheel 31, the L-shaped short plate 28 is fixed to the bottom of the filter unit 2, a through hole is formed in one end of the L-shaped short plate 28, the conductive cylinder 30 is movably sleeved in the through hole, the metal wheel 31 is fixedly connected to one end of the conductive cylinder 30, the metal wheel 31 partially extends into the directional concave rail 13, the conductive cylinder 30 penetrates through the middle of the metal wheel 31, a limiting sleeve is fixed to the conductive cylinders 30 on two sides of the L-shaped short plate 28, the contact element 29 is contacted with the other end of the conductive cylinder 30, one end of the contact element 29 extends into the filter unit 2, prism holes are formed in the L-shaped short plate 28, and the first longitudinal rod 12 is movably sleeved in the prism holes.

Stop device 18 includes L type piece 32, second spring 33, the screens body 34, side control piece 35 and lifts the square 36, L type piece 32 one end is fixed on directional concave rail 13, set up through-hole and the activity cup joint in the through-hole on the L type piece 32 and block body 34, block body 34 shape is cylinder one end body coupling hemisphere, the movable sleeve has second spring 33 on screens body 34 and the cylinder, second spring 33 fills up between screens body 34 and L type piece 32, one side contact of screens body 34 has side control piece 35, side control piece 35 one end fixedly connected with lifts the square 36, it runs through directional concave rail 13 to lift the square 36.

The directional concave rail 13 is shaped like a concave long rail, a plurality of semi-ring curved sections which are uniformly distributed are arranged in the rail, a square hole is formed in the middle of the semi-ring curved section of the directional concave rail 13, a lifting block 36 is movably sleeved in the square hole, one end of an L-shaped inserting rod 23 extends into a square groove formed in the lifting block 36, a side control plate 35 is shaped like an L-shaped plate, one end of the L-shaped plate is integrally connected with an arc plate, the arc plate on the side control plate 35 is in contact with a hemisphere on a clamping body 34, as understood with reference to figures 9 and 7, a second spring 33 elastically supports the clamping body 34, the clamping body 34 is supported on the side control plate 35, a limit side control plate 35 drives the lifting block 36 through the side control plate 35, the relative position of the lifting block 36 and the directional concave rail 13 is kept unchanged, as understood with reference to figure 12, the arc section on the side control rod 8 is partially arranged on one side of the side control plate 35, and the movement of the side control rod 8 is controlled by controlling a second cross rod 19, the arc section part on the side control rod 8 is propped against the side control sheet 35, the side control sheet 35 is made of elastic metal material in the prior art, the side control sheet 35 can deform to a certain extent, under the pushing action of the side control rod 8, the side control sheet 35 is partially bent to be away from the L-shaped sheet 32, the second spring 33 elastically pushes the clamping body 34, the clamping body 34 moves to be away from the directional concave rail 13, under the complete butt joint of the bracket 4 and the walking frame 5, the butt joint relation is released only by manually pushing the second cross rod 19, the side control rod 8 is controlled to move, and the limiting device 18 is controlled to release the clamping control on the conductive cylinder 30.

The contact element 29 comprises a metal column 37, a transverse pushing plate 38, an L-shaped guide column 39, a blocking transverse plate 40, a fourth spring 41 and a metal top plate 42, the upper end of the metal column 37 extends into the filter unit 2, the lower end of the metal column 37 is fixedly connected with the metal top plate 42, the lower end of the metal top plate 42 is lapped on the conductive cylinder 30, the upper end of the metal top plate 42 is contacted with the fourth spring 41, the upper end of the fourth spring 41 is contacted with the blocking transverse plate 40, one end of the blocking transverse plate 40 is fixedly connected with the L-shaped short plate 28, a through hole is formed in the blocking transverse plate 40, the metal column 37 is movably sleeved in the through hole, the fourth spring 41 is sleeved on the metal column 37, one side of the metal column 37 is contacted with the transverse pushing plate 38, the transverse pushing plate 38 is fixed on the first longitudinal rod 12, the other side of the metal column 37 is fixedly connected with the L-shaped guide column 39, and the L-shaped guide column 39 is movably sleeved in a fine hole formed in the transverse plate 40.

The metal top plate 42 is a Z-shaped plate and one end of the plate is provided with an arc bending section, the arc bending section on the metal top plate 42 is lapped on the conductive cylinder 30, the horizontal push plate 38 partially extends into a triangular groove formed on the metal column 37, as can be understood by referring to fig. 7 and 10, under the support of the fourth spring 41, the fourth spring 41 is stably contacted with the conductive cylinder 30 without influencing the rotation of the conductive cylinder 30, the metal column 37 extends into the filter unit 2 and is connected with the filter unit 2, the lower end of the lifting block 36 is provided with a wiring port, so that an external lead is connected, and the external lead extends to the outside of the outer case 1, so that the control of the filter unit 2 by an external circuit is realized through the connection of the lifting block 36 and the contact 29, when the metal wheel 31 moves to fall into a half ring section of the directional concave rail 13, namely, the metal wheel 31 presses on the lifting block 36, so that the circuit path is to transmit the metal wheel 31 through the lifting block 36, the metal wheel 31 transmits the conductive cylinder 30, the conductive cylinder 30 transmits the metal top plate 42, the metal top plate 42 transmits the metal column 37, and further transmits the current to the inside of the filter unit 2, and the circuit interruption control can be realized by controlling the movement of the first longitudinal rod 12, and the first longitudinal rod 12 moves to drive the horizontal push plate 38, and the horizontal push plate 38 sinks into the triangular groove of the metal column 37, so that the metal column 37 is forced to ascend, the metal column 37 controls the metal top plate 42, and the metal top plate 42 ascends and is disconnected from the conductive cylinder 30.

If the filter unit 2 is to be taken out from the outer case 1, the worker needs to manually push the second cross bar 19 towards the inner direction of the outer case 1, the second cross bar 19 drives the side control rod 8, the side control rod 8 moves to jack up the plurality of side control pieces 35, so the clamping body 34 is pulled out from the conductive cylinder 30, the roller piece 11 is not limited, the worker can manually pull the filter unit 2 out from the outer case 1 and place a new filter unit 2 into the outer case 1 by aligning the metal wheels 31 with the directional concave rails 13, the worker pushes the new filter unit 2 inwards, only when all the metal wheels 31 are correspondingly sunk into the semi-ring curved sections on the directional concave rails 13, at the moment, the filter unit 2 is propped against the arched pieces 14, the arched pieces 14 move to drive the brake levers 27, control the plurality of L-shaped insert rods 23 to move, and overcome the elastic pushing influence of the first springs 24 in the process, the L-shaped inserting rod 23 is pulled out from the lifting block 36, the original lifting block 36 is padded at the semi-ring bending section of the directional concave rail 13, the auxiliary metal wheel 31 smoothly rolls on the directional concave rail 13, after all the metal wheels 31 reach the manufacturing positioning on the directional concave rail 13, the lifting block 36 losing the clamping position of the L-shaped inserting rod 23 falls, the metal wheel 31 falls along with the falling, the lifting block 36 drives the side control piece 35, the falling side control piece 35 dials the clamping body 34, the clamping body 34 moves and is inserted into the conductive cylinder 30, the clamping control on the conductive cylinder 30 is realized, the bracket 4 and the walking frame 5 are completely clamped and butted, if the accidental overheating condition occurs in the working process of the filter unit 2, the heat is transferred into the heat conducting plate 6, the increase deformation of the conical body 21 is triggered through the transfer, the Z-shaped brake plate 20 can rise to drive the first transverse rod 10, the first transverse rod 10 controls the first longitudinal rod 12 to move, the first longitudinal rod 12 drives the transverse push plate 38, further, the line connection state of the contact 29 is interrupted, and disconnection control of the filter unit 2 is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a passive power filter that active defense system of electric wire netting power quality used, includes outer box (1), be provided with filter unit (2) and bottom control frame (3) in outer box (1), its characterized in that: a bottom control frame (3) is connected below the filter unit (2), the bottom control frame (3) comprises a bracket (4), a walking frame (5), a heat conducting plate (6) and a heat control part (7), the bracket (4) is fixed on the inner wall of the outer box body (1), the walking frame (5) is connected above the bracket (4), the heat conducting plate (6) is fixed above the walking frame (5), the heat conducting plate (6) is fixed at the bottom of the filter unit (2), one end of the walking frame (5) is connected with the heat control part (7), the upper end of the heat control part (7) is connected with the heat conducting plate (6), the walking frame (5) comprises a first transverse rod (10), roller parts (11) and a first longitudinal rod (12), the two ends of the first transverse rod (10) are fixedly connected with the first longitudinal rod (12), and a plurality of uniformly distributed roller parts (11) are movably connected on the first longitudinal rod (12), the upper end of the roller piece (11) is connected with the filter unit (2), and the lower end of the roller piece (11) is contacted with the bracket (4).

2. The passive power filter for the active defense system of the power quality of the power grid as claimed in claim 1, wherein: bracket (4) are including directional concave rail (13), bow-shaped piece (14), brake lever frame (15), second vertical pole (16), lifting rod (17), stop device (18) and second horizontal pole (19), the below of filter unit (2) is provided with two parallel distribution's directional concave rail (13), and one side parallel distribution of directional concave rail (13) has second vertical pole (16), and opposite side parallel distribution has brake lever frame (15), in gyro wheel spare (11) lower extreme extends directional concave rail (13), fixedly connected with lifting rod (17) between two directional concave rails (13), fixedly connected with second horizontal pole (19) between two second vertical poles (16), fixedly connected with bow-shaped piece (14) between two brake lever frames (15), be provided with a plurality of evenly distributed's stop device (18) on directional concave rail (13).

3. The passive power filter for the active defense system of the power quality of the power grid as claimed in claim 1, wherein: hot controlling part (7) are including Z type braking plate (20), conical body (21) and spacing seat (22), square hole seted up on the plate body that heat-conducting plate (6) was run through in Z type braking plate (20), and the one end contact of Z type braking plate (20) has a plurality of evenly distributed's conical body (21), is provided with spacing seat (22) between conical body (21) and heat-conducting plate (6), spacing seat (22) shape is the L template that solid fixed ring was equipped with a plurality of evenly distributed on the trapezoidal section of thick bamboo outer wall, and fixes in the top of heat-conducting plate (6) spacing seat (22), and the other end and first horizontal pole (10) contact of Z type braking plate (20).

4. The passive power filter for the active defense system of power quality of power grid of claim 2, wherein: the second longitudinal rod (16) comprises a side control rod (8) and a limiting block (9), the limiting block (9) is fixed on the directional concave rail (13), a square hole is formed in the limiting block (9), the side control rod (8) penetrates through the square hole of the limiting block (9), one end of the side control rod (8) is fixed on the second cross rod (19), the side control rod (8) is prism-shaped and is provided with a plurality of arc-shaped convex sections, the arc-shaped convex sections on the side control rod (8) are in contact with the limiting device (18), the brake rod frame (15) comprises an L-shaped inserting rod (23), a first spring (24), an L-shaped direction plate (25), an inner rod (26) and a brake rod (27), one end of the brake rod (27) is fixed on the arch-shaped sheet (14), one side of the brake rod (27) is fixedly connected with the plurality of L-shaped inserting rods (23) which are uniformly distributed, and one end of the L-shaped inserting rod (23) extends into the limiting device (18), and the other end fixedly connected with interior pole (26) of L type inserted bar (23), L type inserted bar (23) one side is provided with L type direction board (25), L type direction board (25) are fixed on directional concave rail (13), set up the through-hole on L type direction board (25), interior pole (26) activity cup joints in the through-hole of L type direction board (25), it has first spring (24) to fill up between L type direction board (25) and L type inserted bar (23), first spring (24) cover is on interior pole (26), one side plane of brake lever (27) and one side plane contact of L type direction board (25).

5. The passive power filter for the active defense system of power quality of power grid of claim 1, wherein: the roller piece (11) comprises an L-shaped short plate (28), a contact element (29), a conductive cylinder (30) and a metal wheel (31), the L-shaped short plate (28) is fixed to the bottom of the filter unit (2), a through hole is formed in one end of the L-shaped short plate (28), the conductive cylinder (30) is movably sleeved in the through hole, one end of the conductive cylinder (30) is fixedly connected with the metal wheel (31), the metal wheel (31) partially extends into the directional concave rail (13), the conductive cylinder (30) penetrates through the middle of the metal wheel (31), a limiting sleeve is fixed to the conductive cylinder (30) on two sides of the L-shaped short plate (28), the other end of the conductive cylinder (30) is in contact with the contact element (29), one end of the contact element (29) extends into the filter unit (2), a prism hole is formed in the L-shaped short plate (28), and a first longitudinal rod (12) is movably sleeved in the prism hole.

6. The passive power filter for the active defense system of the power quality of the power grid as claimed in claim 2, wherein: stop device (18) are including L type piece (32), second spring (33), screens body (34), side control piece (35) and lift square (36), L type piece (32) one end is fixed on directional concave rail (13), card body (34) have been cup jointed in seting up through-hole and the through-hole activity on L type piece (32), card body (34) shape is cylinder one end body coupling hemisphere, the movable sleeve has second spring (33) on card body (34) and the cylinder, second spring (33) pad is between card body (34) and L type piece (32), one side contact of card body (34) has side control piece (35), side control piece (35) one end fixedly connected with lifts square (36), it runs through directional concave rail (13) to lift square (36).

7. The passive power filter for the active defense system of power quality of a power grid according to claim 6, characterized in that: the shape of the directional concave rail (13) is a concave long rail, a plurality of semi-ring curved sections which are uniformly distributed are arranged in the rail, a square hole is formed in the middle of the semi-ring curved section of the directional concave rail (13), a lifting square block (36) is movably sleeved in the square hole, one end of an L-shaped inserting rod (23) extends into a square groove formed in the lifting square block (36), the side control sheet (35) is in an L-shaped plate one end integrated connection arc-shaped plate, and the arc-shaped plate on the side control sheet (35) is in contact with a hemisphere on the clamping body (34).

8. The passive power filter for the active defense system of the power quality of the power grid as claimed in claim 5, wherein: the contact piece (29) comprises a metal column (37), a transverse push plate (38), an L-shaped guide column (39), a blocking transverse plate (40), a fourth spring (41) and a metal top plate (42), the upper end of the metal column (37) extends into the filter unit (2), the lower end of the metal column (37) is fixedly connected with the metal top plate (42), the lower end of the metal top plate (42) is lapped on the conductive cylinder (30), the upper end of the metal top plate (42) is contacted with the fourth spring (41), the upper end of the fourth spring (41) is contacted with the blocking transverse plate (40), one end of the blocking transverse plate (40) is fixedly connected with the L-shaped short plate (28), a through hole is formed in the blocking transverse plate (40), the metal column (37) is movably sleeved in the through hole, the fourth spring (41) is sleeved on the metal column (37), one side of the metal column (37) is contacted with the transverse push plate (38), and the transverse push plate (38) is fixed on the first longitudinal rod (12), the other side of the metal column (37) is fixedly connected with an L-shaped guide column (39), and the L-shaped guide column (39) is movably sleeved in a fine hole formed in the intercepting transverse plate (40).

9. The passive power filter for the active defense system of power quality of a power grid according to claim 8, characterized in that: the metal top plate (42) is Z-shaped plate-shaped, one end of the plate body is provided with an arc-shaped bent section, the arc-shaped bent section on the metal top plate (42) is lapped on the conductive cylinder (30), and part of the transverse push plate (38) extends into a triangular groove formed in the metal column (37).

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