CN213637084U

CN213637084U - 1000kV alternating current filter field arrangement structure

Info

Publication number: CN213637084U
Application number: CN202022460006.0U
Authority: CN
Inventors: 陈晨; 曾静; 马亮; 杨金根; 陈宏明; 许斌; 张虎; 王黎彦; 康鹏; 陈鹏; 曾维雯; 王秋源
Original assignee: China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
Current assignee: China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-06
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a 1000kV alternating current filter field arrangement structure, including two 1000kV alternating current filter big groups that arrange side by side back, every 1000kV alternating current filter big group includes a plurality of alternating current filter subgroups, a plurality of shunt reactor subgroups, wave filter distribution device and 1000kV alternating current filter generating line, with big group alternating current filter subgroup and shunt reactor subgroup arrange in same one side of 1000kV alternating current filter generating line, are "one" font and arrange, 1000kV alternating current filter generating line adopts double-deck wire to arrange, and the upper strata includes 1000kV alternating current filter big group generating line, and the lower floor includes 1000kV alternating current filter subgroup generating line. The utility model discloses can adapt to the requirement that 1000kV AC filter field size is bigger, the air is clear apart from higher, can effectively save area and investment simultaneously.

Description

1000kV alternating current filter field arrangement structure

Technical Field

The utility model relates to a direct current transmission technical field, concretely relates to 1000kV alternating current filter field arrangement structure.

Background

At present, in the technical field of extra-high voltage direct current transmission, the voltage class of the conventional engineering alternating current filter is generally 500 kV. With the development of a technology of hierarchically accessing a 1000kV alternating-current system into a +/-800 kV extra-high voltage direct-current transmission system, a plurality of groups of 1000kV voltage class alternating-current filter groups and parallel reactor groups need to be arranged according to the requirements of reactive power balance and alternating-current harmonic suppression of the system. The 1000kV alternating current filter and the parallel reactor have the characteristics of high voltage level, large insulation gap and large equipment size. The arrangement of the alternating current filter field directly influences the arrangement size of the total plane of the converter station and is related to the engineering investment.

At present, no engineering precedent can be used for reference in the arrangement aspect of a 1000kV alternating current filter field. Therefore, the method reasonably optimizes and researches the site layout of the 1000kV alternating current filter, and has very important engineering value and research significance for reducing the total floor area of the extra-high voltage converter station, saving investment and ensuring the fusion of extra-high voltage direct current transmission and an extra-high voltage alternating current system.

The field arrangement difficulty of the 1000kV alternating current filter is mainly as follows:

1. the size of 1000kV alternating current filter equipment far exceeds that of the conventional 500kV alternating current filter, and the coordination difficulty of the arrangement scheme of the equipment is high.

2. The requirement of 1000kV alternating current air clear distance is greatly improved compared with the conventional 500kV alternating current air clear distance, and the equipment arrangement distance is increased.

3. The floor area of the small group of 1000kV alternating current filters is generally about 1.5-2 times of the size of the 500kV alternating current filters, and the whole arrangement optimization difficulty of the large group of alternating current filters is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide a 1000kV alternating current filter field arrangement structure.

In order to achieve the above object, the utility model provides a 1000kV ac filter field arrangement structure, which comprises two 1000kV ac filter big groups arranged side by side back to back, each 1000kV ac filter big group comprises a plurality of ac filter small groups, a plurality of shunt reactor small groups, a filter distribution device and a 1000kV ac filter bus, the ac filter small groups and the shunt reactor small groups of the same big group are arranged on the same side of the 1000kV ac filter bus and arranged in a shape like a Chinese character 'yi', the 1000kV ac filter bus adopts a double-layer lead arrangement, the upper layer comprises the 1000kV ac filter big group bus, the lower layer comprises the 1000kV ac filter small group bus, the 1000kV ac filter big group bus is connected with the corresponding 1000kV ac filter small group bus through an upper lead-down line, the 1000kV ac filter small group bus is connected with the filter distribution device through a lower lead-down line, and the alternating current filter group and the shunt reactor group are connected with the filter power distribution device through equipment connecting wires.

Preferably, the distribution device is an open type and comprises a 1000kV alternating current circuit breaker, a 1000kV isolating switch, a 1000kV current transformer and a 1000kV alternating current isolating switch which are sequentially connected.

Preferably, the 1000kV alternating current filter large group bus and the 1000kV alternating current filter small group bus are flexible conductors.

Preferably, the alternating current filter small group and the shunt reactor small group in the two 1000kV alternating current filter large groups are symmetrically arranged around the center.

The utility model provides a beneficial effect that technical scheme brought is:

the utility model discloses can adapt to the requirement that 1000kV AC filter field size is bigger, the air is clear apart from higher, can effectively save area and investment simultaneously.

Drawings

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

fig. 2 is a schematic sectional view of the present invention.

In the figure: the high-voltage alternating-current filter power distribution system comprises a 1000kV alternating-current filter large group 100, an alternating-current filter small group 101, a shunt reactor small group 102, a 1000kV alternating-current filter large group bus 103, a 1000kV alternating-current filter small group bus 104, a 1000kV alternating-current filter bus 105, a filter power distribution device 200, an upper-layer down lead 201, a lower-layer down lead 202, a 1000kV isolating switch 203, a 1000kV alternating-current breaker 204, a 1000kV grounding switch 205 and a 1000kV current transformer 206.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The 1000kV ac filter field arrangement structure as shown in fig. 1 comprises two 1000kV ac filter big groups 100 arranged in parallel back to back, each 1000kV ac filter big group 100 comprises a plurality of ac filter small groups 101, a plurality of paralleling reactor small groups 102, a filter distribution device 200 and a 1000kV ac filter bus bar 105, the ac filter small groups 101 and the paralleling reactor small groups 102 of the same big group are arranged on the same side of the 1000kV ac filter bus bar 105 and arranged in a shape of a Chinese character 'yi', the 1000kV ac filter bus bar 105 adopts a double-layer lead arrangement, the upper layer comprises the 1000kV ac filter big group bus bar 103, the lower layer comprises the 1000kV ac filter small group bus bar 104, the 1000kV ac filter big group bus bar 103 is connected with the corresponding 1000kV ac filter small group bus bar 104 through an upper-layer down lead 201, the 1000kV ac filter small group bus bar 104 is connected with the filter distribution device 200 through a lower-layer down lead 202, the AC filter subgroup 101 and the shunt reactor subgroup 102 are connected to the filter power distribution device 200 through a device connection line.

The filter power distribution device 200 is open and comprises a 1000kV current transformer 206, a 1000kV grounding switch 205, a 1000kV alternating current breaker 204 and a 1000kV disconnecting switch 203 which are connected in sequence.

The 1000kV alternating current filter large group bus 103 and the 1000kV alternating current filter small group bus 104 are both flexible conductors.

The ac filter small group 101 and the shunt reactor small group 102 in the two 1000kV ac filter large groups 100 described above are arranged symmetrically about the center.

Other parts not described in detail are known in the art.

Claims

1.1000kV alternating current filter field arrangement structure, its characterized in that: the high-voltage alternating current filter comprises two 1000kV alternating current filter large groups (100) which are arranged in parallel back to back, wherein each 1000kV alternating current filter large group (100) comprises a plurality of alternating current filter subgroups (101), a plurality of shunt reactor subgroups (102), a filter power distribution device (200) and a 1000kV alternating current filter bus (105), the alternating current filter subgroups (101) and the shunt reactor subgroups (102) in the same group are arranged on the same side of the 1000kV alternating current filter bus (105) and are arranged in a straight shape, the 1000kV alternating current filter bus (105) is arranged by adopting a double-layer lead, the upper layer comprises the 1000kV alternating current filter large group bus (103), the lower layer comprises the 1000kV alternating current filter subgroup bus (104), the 1000kV alternating current filter large group bus (103) is connected with the corresponding 1000kV alternating current filter subgroup bus (104) through an upper-layer down lead (201), the 1000kV alternating current filter subgroup bus (104) is connected with the filter power distribution device (200) through a lower-layer down lead (202), and the alternating current filter subgroup (101) and the shunt reactor subgroup (102) are connected with the filter power distribution device (200) through equipment connecting wires.

2. The 1000kV ac filter field arrangement of claim 1, wherein: the filter power distribution device (200) is open and comprises a 1000kV current transformer (206), a 1000kV grounding switch (205), a 1000kV alternating current breaker (204) and a 1000kV isolating switch (203) which are sequentially connected.

3. The 1000kV alternating current filter field arrangement according to claim 1 or 2, characterized in that: the 1000kV alternating current filter large group bus (103) and the 1000kV alternating current filter small group bus (104) are both flexible conductors.

4. A 1000kV ac filter field arrangement according to claim 3, wherein: the alternating current filter small group (101) and the shunt reactor small group (102) in the two 1000kV alternating current filter large groups (100) are symmetrically arranged around the center.