CN216959306U - Wind power plant current collection circuit control system capable of rapidly isolating fault branch - Google Patents
Wind power plant current collection circuit control system capable of rapidly isolating fault branch Download PDFInfo
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- CN216959306U CN216959306U CN202123206940.0U CN202123206940U CN216959306U CN 216959306 U CN216959306 U CN 216959306U CN 202123206940 U CN202123206940 U CN 202123206940U CN 216959306 U CN216959306 U CN 216959306U
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Abstract
The utility model discloses a wind power plant current collection line control system capable of quickly isolating a fault branch, which comprises a current collection line switch cabinet, a one-in two-out cable branch box, a one-in one-out cable branch box, a one-in three-out cable branch box and fan box transformers a-k, wherein the current collection line switch cabinet comprises a circuit breaker switch and a protection measurement and control device; the one-in two-out cable branch box, the one-in one-out cable branch box and the one-in three-out cable branch box respectively comprise a branch switch and a protection measurement and control device; the fan box transformer substations a to k respectively comprise a box transformer substation high-voltage side switch and corresponding protection measurement and control devices a to k. The utility model can quickly isolate each branch on the current collecting line, when a certain branch has a fault, a non-fault branch can be made without power failure or a fault branch can be quickly isolated, the flexibility is high, the range of power failure caused by line fault or maintenance can be greatly reduced, and the power generation loss caused by power failure can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of wind power generation control, in particular to a wind power plant current collection circuit control system capable of quickly isolating a fault branch.
Background
In a wind power generation system, electric energy generated by a wind power generator set is collected by an in-plant collector circuit and then is transmitted to a booster station, each collector circuit is composed of a main line and a plurality of branch lines, and each branch line is connected with each fan, as shown in fig. 1. With the increasing of installed capacity of wind power generation, the problem that the fault of a current collecting circuit of a wind power plant brings power generation and economic loss to enterprises is more and more prominent. Currently, wind farm power collection lines usually achieve electric energy transmission in three forms of full overhead, full cable or overhead cable mixing, wherein full cable or overhead cable mixing is the most common. The lightning strike of a line and the cable fault are two main factors causing the non-stop of a fan, when a certain part of a current collecting line of a wind power plant breaks down, a protection device arranged on a switch cabinet can cut off the whole line and quit the operation, and a maintainer usually needs to spend a long time to search a fault point and process the fault and then can recover power transmission, so that the power failure time of the fan of a non-fault branch is too long, the fault point cannot be quickly isolated, the power failure range cannot be reduced, and more power generation loss is caused. Therefore, the system and the method for rapidly isolating the fault branch of the current collecting line of the wind power plant and timely recovering the non-fault branch are significant.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wind power plant current collection line control system capable of quickly isolating a fault branch, which can quickly isolate each branch on a current collection line, can be used for a non-fault branch without power failure or quickly isolating the fault branch when a certain branch fails, has high flexibility, can greatly reduce the range of power failure caused by maintenance, and effectively reduces the power generation loss caused by power failure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a wind power plant current collection line control system capable of quickly isolating fault branches comprises a current collection line switch cabinet, a one-in two-out cable branch box, a one-in one-out cable branch box, a one-in three-out cable branch box and fan box transformers a-k, wherein the fan box transformers a-k comprise a fan box transformer a, a fan box transformer b, a fan box transformer c, a fan box transformer d, a fan box transformer e, a fan box transformer f, a fan box transformer g, a fan box transformer h, a fan box transformer i, a fan box transformer j and a fan box transformer k;
a main circuit switch and a protection measurement and control device I are arranged in the current collection line switch cabinet; the main circuit switch is used for switching on and off a current collecting circuit of the wind power plant; the protection measurement and control device I is used for controlling the on-off of a main circuit switch and controlling the main circuit switch to cut off a fault circuit when a circuit fault occurs;
a branch switch I and a protection measurement and control device II are arranged in the one-inlet two-outlet cable branch box;
a branch switch II and a protection measurement and control device III are arranged in the one-inlet one-outlet cable branch box;
a branch switch III and a protection measurement and control device IV are arranged in the one-inlet three-outlet cable branch box;
the branch switch I, the branch switch II and the branch switch III are used for switching and isolating each branch; the protection measurement and control device II, the protection measurement and control device III and the protection measurement and control device IV are respectively used for controlling the on-off of the branch switch I, the branch switch II and the branch switch III, so that the branch switch I, the branch switch II and the branch switch III are respectively controlled to cut off a fault line when a line fails, or the on-off of each branch is controlled when the line is maintained in a power failure mode;
the fan box transformer substations a to k are internally provided with box transformer substation high-voltage side switches and corresponding protection measurement and control devices a to k respectively; the box transformer substation high-voltage side switch is used for switching on and off a box transformer substation high-voltage side line; the protection measurement and control devices a-k comprise a protection measurement and control device a, a protection measurement and control device b, a protection measurement and control device c, a protection measurement and control device d, a protection measurement and control device e, a protection measurement and control device f, a protection measurement and control device g, a protection measurement and control device h, a protection measurement and control device i, a protection measurement and control device j and a protection measurement and control device k, and the protection measurement and control devices are respectively used for controlling the on-off of corresponding box transformer high-voltage side switches.
Furthermore, the branch switch I, the branch switch II, the branch switch III and the box transformer substation high-voltage side switch are in a circuit breaker configuration mode.
Further, switches among fans are arranged in the fan box transformer substation a, the fan box transformer substation c, the fan box transformer substation e, the fan box transformer substation g and the fan box transformer substation h; the switch between the fans is respectively used for controlling the connection and disconnection of circuits between the fan box transformers a and b, between the fan box transformers c and d, between the fan box transformers e and f, between the fan box transformers g and h and between the fan box transformers h and i; and the protection measurement and control device a, the protection measurement and control device c, the protection measurement and control device e, the protection measurement and control device g and the protection measurement and control device h simultaneously control the on-off of the switches between the corresponding fans.
Furthermore, the switch between the fans is in an isolating switch configuration mode.
Further, the current collecting line switch cabinet is arranged in the booster station, and the one-in two-out cable branch box, the one-in one-out cable branch box and the one-in three-out cable branch box are respectively connected with the current collecting line switch cabinet;
the fan box transformer substation a and the fan box transformer substation c are respectively connected with the one-inlet two-outlet cable branch box; the fan box transformer substation b and the fan box transformer substation d are respectively connected with the fan box transformer substation a and the fan box transformer substation c;
the fan box transformer substation e is connected with an inlet cable branch box and an outlet cable branch box; the fan box transformer substation f is connected with the fan box transformer substation e;
the fan box transformer substation g, the fan box transformer substation j and the fan box transformer substation k are respectively connected with the one-in three-out cable branch boxes; the fan box transformer substation h is connected with the fan box transformer substation g; and the fan box transformer substation i is connected with the fan box transformer substation h.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the main circuit switch is arranged in the current collecting line switch cabinet, the branch circuit switch is respectively arranged in each cable branch box, the box transformer high-voltage side switch is respectively arranged in each fan box transformer substation, and the protection measurement and control devices are respectively arranged, so that each branch circuit on the current collecting line can be quickly isolated, and when a certain branch circuit has a fault, a non-fault branch circuit does not need to be powered off or the fault branch circuit can be quickly isolated; the switch between the fans is further arranged, when a certain branch needs to be maintained in a power failure mode, the branch switch can be disconnected through remote operation, and the whole power failure is not needed.
2. The utility model can improve the operation flexibility of the current collecting line, and each branch can be remotely switched on and off through the protection measurement and control device due to the line configuration switch between the cable branch box and the fan, so the operation flexibility of the line is high.
3. The utility model can avoid or reduce the loss of electric quantity, and can realize quick isolation of each branch of the current collection circuit, thereby greatly reducing the range of power failure required by maintenance and effectively reducing the loss of generated energy caused by power failure.
Drawings
FIG. 1 is a typical wiring diagram of a wind farm current collector;
FIG. 2 is a system composition diagram according to embodiment 1 of the present invention;
FIG. 3 is a system composition diagram in embodiment 2 of the present invention;
FIG. 4 is a wiring diagram of embodiment 1 of the present invention;
FIG. 5 is a wiring diagram of embodiment 2 of the present invention;
FIG. 6 is a failure point diagram of embodiment 1 of the present invention;
FIG. 7 is a failure point diagram of embodiment 2 of the present invention;
the numbers and names in the figure are as follows:
10-current collection line switch cabinet; 20-one inlet two outlet cable branch box; 30-one inlet and one outlet cable branch box; 40-one-inlet three-outlet cable branch box;
t1-blower box transformer substation a; t2-a fan box transformer substation b; t3-a fan box transformer substation c; t4-blower box becomes d; t5-blower box transformer substation e; t6-a fan box transformer substation f; t7-blower box transformer g; t8-fan box transformer substation h; t9-fan box transformer substation i; t10-blower box transformer j; t11-blower box becomes k;
k11 — main circuit switch; k21-branch switch I; k31-branch switch II; k41-branch switch III;
101-protection measurement and control device I; 201-protection measurement and control device II; 301-protection measurement and control device III; 401-protection measurement and control device IV;
t101-protection measurement and control device a; t201-protection measurement and control device b; t301-protection measurement and control device c; t401-protection measurement and control device d; t501-protection measurement and control device e; t601-protection measurement and control device f; t701-protection measurement and control device g; t801-protection measurement and control device h; t901-protection measurement and control device i; t1001-protection measurement and control device j; t1101-protection measurement and control device k;
KT 1-high side switch; KT 2-fan switch.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment. It should be understood that the directions "up", "down", "back", "front", "left" and "right" mentioned in the following embodiments of the present invention are all based on the front view of the structure. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the present invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.
Example 1
A wind power plant current collection line control system capable of quickly isolating a fault branch comprises a current collection line switch cabinet 10, a one-in two-out cable branch box 20, a one-in one-out cable branch box 30, a one-in three-out cable branch box 40 and fan box transformers a-k, wherein the fan box transformers a-k comprise a fan box transformer aT1, a fan box transformer bT2, a fan box transformer cT3, a fan box transformer dT4, a fan box transformer eT5, a fan box transformer fT6, a fan box transformer gT7, a fan box transformer hT8, a fan box transformer iT9, a fan box transformer jT10 and a fan box transformer kT 11;
the collecting line switch cabinet 10 is arranged in the booster station, and the one-inlet two-outlet cable branch box 20, the one-inlet one-outlet cable branch box 30 and the one-inlet three-outlet cable branch box 40 are respectively connected with the collecting line switch cabinet 10;
the fan box transformer substation aT1 and the fan box transformer substation cT3 are respectively connected with the one-inlet two-outlet cable branch box 20; the fan box transformer substation bT2 and the fan box transformer substation dT4 are respectively connected with a fan box transformer substation aT1 and a fan box transformer substation cT 3;
the fan box transformer station eT5 is connected with an inlet and outlet cable branch box 30; the fan box transformer substation fT6 is connected with the fan box transformer substation eT 5;
the fan box transformer gT7, the fan box transformer jT10 and the fan box transformer kT11 are respectively connected with the one-inlet three-outlet cable branch box 40; the fan box transformer hT8 is connected with a fan box transformer gT 7; the fan box transformer station iT9 is connected with the fan box transformer station hT 8;
a main circuit switch K11 and a protection measurement and control device I101 are arranged in the current collection line switch cabinet 10; the main circuit switch K11 is in a circuit breaker configuration mode and is used for switching on and off a current collection circuit of the wind power plant; the protection measurement and control device I101 is used for controlling the on-off of a main circuit switch K11, controlling the main circuit switch K11 to cut off a fault circuit when a circuit is in fault, or controlling the on-off of each branch circuit when the circuit is in power failure maintenance;
a branch switch I K21 and a protection measurement and control device II 201 are arranged in the one-inlet two-outlet cable branch box 20;
a branch switch IIK 31 and a protection measurement and control device III 301 are arranged in the one-inlet one-outlet cable branch box 30;
a branch switch IIIK 41 and a protection measurement and control device IV 401 are arranged in the one-inlet three-outlet cable branch box 40;
the branch switch I K21, the branch switch II K31 and the branch switch III K41 are in a circuit breaker configuration mode and are respectively used for switching and isolating each branch; the protection measurement and control device II 201, the protection measurement and control device III 301 and the protection measurement and control device IV 401 are respectively used for controlling the on-off of a branch switch I K21, a branch switch II K31 and a branch switch III K41, and respectively controlling a branch switch I K21, a branch switch II K31 and a branch switch III K41 to cut off a fault line when the line has a fault;
a box transformer high-voltage side switch KT1 and corresponding protection measurement and control devices a-k are respectively arranged in the fan box transformer a-k; the box transformer high-voltage side switch KT1 is in a circuit breaker configuration mode and is used for switching on and off a high-voltage side circuit of a box transformer; the protection measurement and control devices a to k comprise a protection measurement and control device aT101, a protection measurement and control device bT201, a protection measurement and control device cT301, a protection measurement and control device dT401, a protection measurement and control device eT501, a protection measurement and control device fT601, a protection measurement and control device gT701, a protection measurement and control device hT801, a protection measurement and control device iT901, a protection measurement and control device jT1001 and a protection measurement and control device kT1101, and the protection measurement and control devices a to k are respectively used for controlling the on-off of a corresponding box transformer high-voltage side switch KT 1.
As shown in fig. 6, when a fault occurs aT a cable K1 between a fan box transformer substation aT1 and a fan box transformer substation aT bT2, a protection and control device ii 201 in a one-in two-out cable branch box 20 acts to trip a branch switch ik 21, aT this time, a-d of the fan box transformer substation is powered off, and a fan box transformer substation e-K is not affected; when a fault occurs at a cable K2 between the fan box transformers e and f, the protection measurement and control device III 301 in the cable branch box 30 acts one by one, the branch switch II K31 is tripped, at the moment, the fan box transformers e and f are powered off, and the fan box transformers a to d and g to K are not affected; when a fault occurs at a cable K3 position between the one-inlet three-position cable branch box 40 and the fan box transformer substation jT10, the protection measurement and control device IV 401 in the one-inlet three-position cable branch box 40 acts to trip off the branch circuit breaker III K41, at the moment, the fan box transformer substations g-K are powered off, and the fan box transformer substations a-f are not influenced; the method can cut off the faulted branch circuit quickly.
Example 2
A wind power plant current collection circuit control system capable of quickly isolating fault branches comprises a current collection circuit switch cabinet 10, a one-in two-out cable branch box 20, a one-in one-out cable branch box 30, a one-in three-out cable branch box 40 and fan box transformers a-k, wherein the fan box transformers a-k comprise a fan box transformer aT1, a fan box transformer bT2, a fan box transformer cT3, a fan box transformer dT4, a fan box transformer eT5, a fan box transformer fT6, a fan box transformer gT7, a fan box transformer hT8, a fan box transformer iT9, a fan box transformer jT10 and a fan box transformer kT 11;
the collecting line switch cabinet 10 is arranged in the booster station, and the one-inlet two-outlet cable branch box 20, the one-inlet one-outlet cable branch box 30 and the one-inlet three-outlet cable branch box 40 are respectively connected with the collecting line switch cabinet 10;
the fan box transformer substation aT1 and the fan box transformer substation cT3 are respectively connected with the one-inlet two-outlet cable branch box 20; the fan box transformer substation bT2 and the fan box transformer substation dT4 are respectively connected with a fan box transformer substation aT1 and a fan box transformer substation cT 3;
the fan box transformer station eT5 is connected with an inlet and outlet cable branch box 30; the fan box transformer substation fT6 is connected with the fan box transformer substation eT 5;
the fan box transformer gT7, the fan box transformer jT10 and the fan box transformer kT11 are respectively connected with the one-inlet three-outlet cable branch box 40; the fan box transformer hT8 is connected with a fan box transformer gT 7; the fan box transformer station iT9 is connected with the fan box transformer station hT 8;
a main circuit switch K11 and a protection measurement and control device I101 are arranged in the current collection line switch cabinet 10; the main circuit switch K11 is in a circuit breaker configuration mode and is used for switching on and off a current collection circuit of the wind power plant; the protection measurement and control device I101 is used for controlling the on-off of a main circuit switch K11, controlling the main circuit switch K11 to cut off a fault circuit when a circuit is in fault, or controlling the on-off of each branch circuit when the circuit is in power failure maintenance;
a branch switch I K21 and a protection measurement and control device II 201 are arranged in the one-inlet two-outlet cable branch box 20;
a branch switch II K31 and a protection measurement and control device III 301 are arranged in the one-inlet one-outlet cable branch box 30;
a branch switch IIIK 41 and a protection measurement and control device IV 401 are arranged in the one-inlet three-outlet cable branch box 40;
the branch switch I K21, the branch switch II K31 and the branch switch III K41 are in a circuit breaker configuration mode and are respectively used for switching and isolating each branch; the protection measurement and control device II 201, the protection measurement and control device III 301 and the protection measurement and control device IV 401 are respectively used for controlling the on-off of a branch switch I K21, a branch switch II K31 and a branch switch III K41, and respectively controlling a branch switch I K21, a branch switch II K31 and a branch switch III K41 to cut off a fault line when a line fault occurs;
a box transformer high-voltage side switch KT1, a switch KT2 between fans and corresponding protection measurement and control devices a-k are respectively arranged in the fan box transformers a-k; the box transformer substation high-voltage side switch KT1 is in a circuit breaker configuration mode and is used for switching on and off of a box transformer substation high-voltage side circuit; the switch KT2 between the fans is in an isolating switch configuration mode and is used for switching on and off a circuit between the fans; the protection measurement and control devices a-k comprise a protection measurement and control device aT101, a protection measurement and control device bT201, a protection measurement and control device cT301, a protection measurement and control device dT401, a protection measurement and control device eT501, a protection measurement and control device fT601, a protection measurement and control device gT701, a protection measurement and control device hT801, a protection measurement and control device iT901, a protection measurement and control device jT1001 and a protection measurement and control device kT1101, and are respectively used for controlling the on-off of a corresponding box transformer high-voltage side switch KT 1; a fan switch KT2 is further arranged in the fan box transformer aT1, the fan box transformer cT3, the fan box transformer eT5, the fan box transformer gT7 and the fan box transformer hT 8; the inter-fan switch KT2 is respectively used for the connection and disconnection of lines among fan box transformers a-b, fan box transformers c-d, fan box transformers e-f, fan box transformers g-h and fan box transformers h-i; the protection measurement and control device aT101, the protection measurement and control device cT301, the protection measurement and control device eT501, the protection measurement and control device gT701 and the protection measurement and control device hT801 simultaneously control the on-off of a switch KT2 between corresponding fans.
As shown in fig. 7, when a fault occurs aT a cable K1 between the fan box substations a and b, the protection measurement and control device ii 201 in the one-inlet two-outlet cable branch box 20 acts to trip the branch switch i K21, aT this time, the fan box substations a to d have power failure, the fan box substations e to K are not affected, operators can remotely disconnect the switch KT2 between the fans of the fan box substation aT1, and remotely close the branch switch i K21 of the one-inlet two-outlet cable branch box 20, so that the fan box substations aT1, c 3 and d 4 are quickly electrified; similarly, when faults occur at the cables K2, K3 and K4, the circuit breakers in the corresponding cable branch boxes can be disconnected by the protection measurement and control device, and then the disconnecting switches of the corresponding fault branches are disconnected remotely, so that the method can be used for rapidly cutting the fault branches and rapidly recovering the power transmission of the non-fault branches.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. The utility model provides a can keep apart wind-powered electricity generation field current collection circuit control system of trouble branch road fast, includes current collection circuit cubical switchboard (10), one advances two cable branch boxes (20), one advances one cable branch box (30), one advances three cable branch boxes (40), fan case becomes a ~ k, its characterized in that: the fan box transformer substations a-k comprise a fan box transformer substation a (T1), a fan box transformer substation b (T2), a fan box transformer substation c (T3), a fan box transformer substation d (T4), a fan box transformer substation e (T5), a fan box transformer substation f (T6), a fan box transformer substation g (T7), a fan box transformer substation h (T8), a fan box transformer substation i (T9), a fan box transformer substation j (T10) and a fan box transformer substation k (T11);
a main circuit switch (K11) and a protection measurement and control device I (101) are arranged in the current collection line switch cabinet (10); the main circuit switch (K11) is used for switching on and off a current collection circuit of the wind power plant; the protection measurement and control device I (101) is used for controlling the on-off of a main circuit switch (K11) and controlling the main circuit switch (K11) to cut off a fault circuit when a circuit fault occurs;
a branch switch I (K21) and a protection measurement and control device II (201) are arranged in the one-inlet two-outlet cable branch box (20);
a branch switch II (K31) and a protection measurement and control device III (301) are arranged in the one-inlet one-outlet cable branch box (30);
a branch switch III (K41) and a protection measurement and control device IV (401) are arranged in the one-inlet three-outlet cable branch box (40);
the branch switch I (K21), the branch switch II (K31) and the branch switch III (K41) are respectively used for switching and isolating each branch; the protection measurement and control device II (201), the protection measurement and control device III (301) and the protection measurement and control device IV (401) are respectively used for controlling the on-off of a branch switch I (K21), a branch switch II (K31) and a branch switch III (K41), so that the fault line can be cut off by respectively controlling the branch switch I (K21), the branch switch II (K31) and the branch switch III (K41) when the line has a fault, or the on-off of each branch can be controlled when the line is in power failure for maintenance;
a box transformer high-voltage side switch (KT1) and corresponding protection measurement and control devices a-k are respectively arranged in the fan box transformers a-k; the box transformer high-voltage side switch (KT1) is used for switching on and off a box transformer high-voltage side circuit; the protection measurement and control devices a-k comprise a protection measurement and control device a (T101), a protection measurement and control device b (T201), a protection measurement and control device c (T301), a protection measurement and control device d (T401), a protection measurement and control device e (T501), a protection measurement and control device f (T601), a protection measurement and control device g (T701), a protection measurement and control device h (T801), a protection measurement and control device i (T901), a protection measurement and control device j (T1001) and a protection measurement and control device k (T1101), and the protection measurement and control devices a-k are respectively used for controlling the on-off of a corresponding box-to-box high-voltage side switch (KT 1).
2. A wind farm collection line control system capable of rapidly isolating a faulty branch according to claim 1, characterized in that: the main circuit switch (K11), the branch circuit switch I (K21), the branch circuit switch II (K31), the branch circuit switch III (K41) and the box transformer high-voltage side switch (KT1) are in a circuit breaker configuration mode.
3. A wind farm collection line control system capable of rapidly isolating a faulty branch according to claim 1, characterized in that: a fan switch (KT2) is further arranged in the fan box transformer a (T1), the fan box transformer c (T3), the fan box transformer e (T5), the fan box transformer g (T7) and the fan box transformer h (T8); the inter-fan switch (KT2) is respectively used for controlling the connection and disconnection of circuits among fan box transformers a-b, c-d, e-f, g-h and h-i; the protection measurement and control device a (T101), the protection measurement and control device c (T301), the protection measurement and control device e (T501), the protection measurement and control device g (T701) and the protection measurement and control device h (T801) simultaneously control the on-off of a switch (KT2) between corresponding fans.
4. A wind farm collection line control system capable of rapidly isolating a faulty branch according to claim 3, characterized in that: the switch (KT2) between the fan is in an isolating switch configuration mode.
5. A wind farm current collection circuit control system capable of rapidly isolating a fault branch according to any one of claims 1 to 4, characterized in that:
the power collecting line switch cabinet (10) is arranged in the booster station, and the one-inlet two-outlet cable branch box (20), the one-inlet one-outlet cable branch box (30) and the one-inlet three-outlet cable branch box (40) are respectively connected with the power collecting line switch cabinet (10);
the fan box transformer substation a (T1) and the fan box transformer substation c (T3) are respectively connected with the one-inlet two-outlet cable branch box (20); the fan box transformer substation b (T2) and the fan box transformer substation d (T4) are respectively connected with the fan box transformer substation a (T1) and the fan box transformer substation c (T3);
the fan box transformer substation e (T5) is connected with an inlet and outlet cable branch box (30); the fan box transformer substation f (T6) is connected with the fan box transformer substation e (T5);
the fan box transformer substation g (T7), the fan box transformer substation j (T10) and the fan box transformer substation k (T11) are respectively connected with the one-inlet three-outlet cable branch box (40); the fan box transformer substation h (T8) is connected with the fan box transformer substation g (T7); and the fan box transformer substation i (T9) is connected with the fan box transformer substation h (T8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123206940.0U CN216959306U (en) | 2021-12-20 | 2021-12-20 | Wind power plant current collection circuit control system capable of rapidly isolating fault branch |
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| CN202123206940.0U CN216959306U (en) | 2021-12-20 | 2021-12-20 | Wind power plant current collection circuit control system capable of rapidly isolating fault branch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400628A (en) * | 2021-12-20 | 2022-04-26 | 广西润电风能(北流)有限公司 | Wind power plant current collection circuit control method capable of reducing fault influence range |
| CN114400628B (en) * | 2021-12-20 | 2024-09-27 | 广西润电风能(北流)有限公司 | Wind power plant current collection circuit control method capable of reducing fault influence range |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400628A (en) * | 2021-12-20 | 2022-04-26 | 广西润电风能(北流)有限公司 | Wind power plant current collection circuit control method capable of reducing fault influence range |
| CN114400628B (en) * | 2021-12-20 | 2024-09-27 | 广西润电风能(北流)有限公司 | Wind power plant current collection circuit control method capable of reducing fault influence range |
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