CN212296630U - Movable gas turbine generator set with bypass function - Google Patents
Movable gas turbine generator set with bypass function Download PDFInfo
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- CN212296630U CN212296630U CN202021990823.0U CN202021990823U CN212296630U CN 212296630 U CN212296630 U CN 212296630U CN 202021990823 U CN202021990823 U CN 202021990823U CN 212296630 U CN212296630 U CN 212296630U
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Abstract
The utility model discloses a mobile gas turbine generator set with bypass function, relating to the technical field of electric power, in-vehicle gas turbine generator, a first power supply branch and a second power supply branch; the input end of the first power supply branch is used for being connected with a mains supply, the first power supply branch comprises a first switch, the first end of the first switch is connected with the input end of the first power supply branch, and the second end of the first switch is connected with the output end of the first power supply branch; the input end of the second power supply branch is connected with the vehicle-mounted gas turbine generator, the second power supply branch comprises a second switch, the first end of the second switch is connected with the input end of the second power supply branch, and the second end of the second switch is connected with the output end of the second power supply branch. Therefore, the uninterrupted power supply of the user can be guaranteed in the long-time maintenance process.
Description
Technical Field
The utility model relates to an electric power tech field, more specifically relates to a removal type gas turbine generating set with bypass function.
Background
With the increasingly strong economic strength of China, the frequency of communication with various countries in the world is higher, the number of major political activities is higher, and the requirement on power supply guarantee of a power grid is higher.
In the meantime of rapid development of social economy, the electric power industry also faces more pressure and challenges, the scale of power consumers is continuously enlarged, the requirements of people on power supply reliability and stability are higher and higher, and particularly, the requirements on power supply are strict due to the requirements of enterprise customers in the aspect of production, and the power failure can bring great influence on the enterprise customers. Therefore, the demand of electricity for customers determines that a power supply unit must develop uninterrupted operation.
Distribution network uninterrupted operation is an important measure for improving power supply reliability of international advanced power grid enterprises, and in current power development, an uninterrupted operation mode is a content which must be fully mastered by power supply enterprises. The concept of the traditional uninterrupted power supply operation is that an operator works in a live mode. Live working has certain risk to the operator, and is inefficient, costly.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a removal type gas turbine generating set with bypass function both can ensure when joining in marriage net maintenance or troubleshooting, and it is incessant that the power receiving user lasts the power supply, also becomes the power failure operation with artifical live working simultaneously, has realized the live working mode that uses the manual work as the owner to the live working mode's that professional equipment is main transformation, promotes the reliability and the power supply reliability of electric wire netting operation by a wide margin, improves the operational benefits of power supply enterprise.
The application provides a removal type gas turbine generating set with bypass function includes: the system comprises an on-board gas turbine generator, a first power supply branch and a second power supply branch;
the input end of the first power supply branch is used for being connected with a mains supply, the first power supply branch comprises a first switch, the first end of the first switch is connected with the input end of the first power supply branch, and the second end of the first switch is connected with the output end of the first power supply branch;
the input end of the second power supply branch is connected with the vehicle-mounted gas turbine generator, the second power supply branch comprises a second switch, the first end of the second switch is connected with the input end of the second power supply branch, and the second end of the second switch is connected with the output end of the second power supply branch.
Optionally, wherein:
the first power supply branch further comprises a first plug, and the first plug is connected in series between the second end of the first switch and the output end of the first power supply branch.
Optionally, wherein:
the second power supply branch further comprises a second plug, and the second plug is connected in series between the second end of the second switch and the output end of the second power supply branch.
Optionally, wherein:
the second power supply branch comprises a flexible cable, one end of the flexible cable is electrically connected with the second plug, and the other end of the flexible cable is used as the output end of the second power supply branch.
Optionally, wherein:
the current-carrying capacity of the flexible cable is more than or equal to 200A/10 KV.
Optionally, wherein:
the voltage class of the vehicle-mounted gas turbine generator is 10 KV.
Optionally, wherein:
the vehicle-mounted gas turbine generator, the first power supply branch and the second power supply branch are integrated on the same generator car.
Optionally, wherein:
still include commercial power input control cabinet and gas turbine generating set switch board, first switch is located in the commercial power input control cabinet, the second switch is located in the gas turbine generating set switch board.
Compared with the prior art, the utility model provides a pair of removal type gas turbine generating set with bypass function has realized following beneficial effect at least:
the utility model provides an among the removal type gas turbine generating set with bypass function, be provided with on-vehicle gas turbine generator, first power supply branch road and second power supply branch road, wherein first power supply branch road is used for connecting mains power supply, and the second power supply branch road is used for connecting on-vehicle gas turbine generator. When a line for normally supplying power to a power receiving user needs power failure maintenance, the mobile gas turbine generator set provided by the application can be used for supplying power to the power receiving user, when the mains supply is convenient to access, the first switch can be switched on, and the mains supply is output to the power receiving user through the first power supply branch, so that the normal power consumption of the power receiving user is ensured; when the mains supply is inconvenient to access, the second switch can be switched on, and the power supply of the vehicle-mounted gas turbine generator set is output to the power receiving user through the second power supply branch; of course, the first power supply branch and the second power supply branch can be conducted at the same time, and the mains supply and the power supply of the vehicle-mounted gas turbine generator set are used for supplying power to the power receiving users at the same time. When the mains supply and/or the power supply of the vehicle-mounted gas turbine generator set are/is used for supplying power to the power receiving user, the line for normally supplying power to the power receiving user can be overhauled, and the influence on the normal power consumption of the power receiving user can be avoided during overhauling. Therefore, the distribution network maintenance or fault removal can be guaranteed, the power receiving user can continuously supply power, meanwhile, manual live operation is changed into power failure operation, the change from a live operation mode mainly based on manual work to a live operation mode mainly based on special equipment is realized, the reliability of power grid operation and the reliability of power supply are greatly improved, and the operating benefit of a power supply enterprise is improved.
Of course, it is not necessary for any product of the present invention to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a mobile gas turbine generator set with a bypass function according to the present invention;
fig. 2 is a schematic view of another structure of a mobile gas turbine generator set with a bypass function according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a mobile gas turbine generator set with a bypass function according to the present invention, please refer to fig. 1, wherein the mobile gas turbine generator set with a bypass function 100 includes: an on-board gas turbine generator 10, a first power branch L1, and a second power branch L2;
the input end of the first power supply branch L1 is used for connecting a mains supply, the first power supply branch includes a first switch K1, a first end of the first switch K1 is connected to the input end of the first power supply branch L1, and a second end of the first switch K1 is connected to the output end of the first power supply branch L1;
the input end of the second power supply branch L2 is connected with the vehicle-mounted gas turbine generator 10, the second power supply branch L2 comprises a second switch K2, the first end of the second switch K2 is connected with the input end of the second power supply branch L2, and the second end of the second switch K2 is connected with the output end of the second power supply branch L2.
Specifically, please refer to fig. 1, in the mobile gas turbine generator set 100 with bypass function provided by the present invention, an on-board gas turbine generator 10, a first power supply branch L1 and a second power supply branch L2 are provided, wherein the first power supply branch L1 is used for connecting the utility power source, and the second power supply branch L2 is used for connecting the on-board gas turbine generator. When the line for normally supplying power to the power receiving user U needs a power failure maintenance period, the movable gas turbine generator set with the bypass function can be used for supplying power to the power receiving user U, when the mains supply is convenient to access, the first control switch K1 can be switched on, and the mains supply is output to the power receiving user U through the first power supply branch L1, so that the normal power consumption of the power receiving user U is ensured; when the mains supply is inconvenient to access, the second control switch K2 can be switched on, and the power supply of the vehicle-mounted gas turbine generator is output to the power receiving user U through the second power supply branch L2; of course, when the second power supply branch L2 detects that the frequency, voltage, and phase of the second power supply branch L3578 are consistent with those of the first power supply branch L1, the first power supply branch L1 and the second power supply branch L2 may be turned on at the same time, and the utility power and the power of the on-vehicle gas turbine generator 10 are used to supply power to the powered user U at the same time. When the utility power supply and/or the power supply of the vehicle-mounted gas turbine generator 10 are/is used for supplying power to the power receiving user U, the line for normally supplying power to the power receiving user U can be overhauled, and the normal power consumption of the power receiving user U cannot be influenced during overhauling. Therefore, the utility model provides a removal type gas turbine generating set 100 with bypass function both can ensure when joining in marriage net maintenance or troubleshooting, receives electric user U and lasts the power supply incessantly, also becomes the power failure operation with artifical live working simultaneously, has realized the live working mode that uses the manual work as the main change to the live working mode that professional equipment is main, promotes the reliability and the power supply reliability of electric wire netting operation by a wide margin, improves the operational benefits of power supply enterprise.
It should be noted that, the utility model provides a predetermine the time quantum and need a certain moment after normal power supply line can normal power supply for receiving power user U's normal power supply line during the maintenance of having a power failure, the utility model discloses the operation of not having a power failure indicates the operation of not having a power failure in the above-mentioned time quantum of predetermineeing, receives power user U can normally receive the power, simultaneously, still can carry out the power failure operation to equipment or the circuit of waiting to overhaul in the normal power supply line and do not influence receiving power user U's receiving power.
In an alternative embodiment, referring to fig. 2, fig. 2 is another schematic structural diagram of a mobile gas turbine generator set with a bypass function according to the present invention, the first power supply branch L1 further includes a first plug 21, and the first plug 21 is connected in series between the second end of the first switch K1 and the output end of the first power supply branch L1. The second supply branch L2 further comprises a second plug 22, the second plug 22 being connected in series between the second terminal of the second switch K2 and the output of the second supply branch L2.
The mobile gas turbine generator set 100 with bypass function according to the present invention will be further described with reference to fig. 2. The mobile gas turbine power plant 100 with bypass function provided in the present application can be used to supply power to a powered user U during a period when a line (e.g., a device or line to be serviced as shown in fig. 2) that normally supplies power to the powered user U needs to be serviced due to a power outage. Temporary power supply is realized by introducing a bypass cable, and power-off maintenance is carried out on lines or equipment to be maintained, such as sections X1-X2 in fig. 2, and temporary power supply is introduced in advance, so that the power consumption requirements of users cannot be influenced in the maintenance process, the maintenance is carried out without power-off for clients, and for maintenance personnel, the X1 and X2 switches are disconnected before operation, so that power-off operation is realized, and the operation safety is favorably ensured.
The utility model discloses two power supply branches have been introduced, when possessing mains supply access condition, in above-mentioned preset time quantum, can only switch on first control switch K1, that is to say switch on first power supply branch circuit L1, make mains supply provide to receiving electric user U through first power supply branch circuit L1 through first control switch K1 and first plug 21, the guarantee receives electric user U's normal power consumption demand in preset time quantum. Of course, when possessing the commercial power access condition, still can all switch on first control switch K1 and second control switch K2, that is to say, all switch on first power supply branch road L1 and second branch road, by the common power supply of commercial power and on-vehicle gas turbine generating set 10 to the power consumption user U to be favorable to the increase to providing to the electric quantity of power consumption user U, be favorable to further guaranteeing the power consumption demand of power consumption user U.
In an alternative embodiment, the second power supply branch L2 includes a flexible cable 30, one end of the flexible cable 30 is electrically connected to the second plug 22, and the other end serves as an output terminal of the second power supply branch L2.
It should be noted that fig. 2 shows the flexible cable 30 as a dashed structure, which does not represent the actual structure of the flexible cable 30 and is only a schematic illustration. When utilizing second power supply branch road L2 to receive electric user U power supply, accessible flexible cable 30 inserts to receiving electric user U's input port, and flexible cable 30 is convenient for carry, and convenient the drawing is favorable to reducing the power supply degree of difficulty.
Under the condition that the length of the flexible cable 30 is long, due to the fact that the ground capacitance of the cable is large, in the processes of load transfer and power restoration of an overhead line, large inrush current can be generated, overvoltage and overcurrent are formed, and misoperation of line protection equipment is caused. Under this condition, the utility model discloses can adopt the parallelly connected power supply of bypass node that the on-the-spot and needs of gas turbine vehicle generator recovered, that is to say, adopt first power supply branch road L1 and second power supply branch road L2 simultaneously for receiving the power supply of electricity user U, but also can avoid surge voltage to take place through the output load of progressively adjusting generating set 10, and steady recovery. When the first power supply branch L1 and the second power supply branch L2 are used to simultaneously supply power to the powered user U, it is preferable to perform the power supply when the second power supply branch detects that the frequency, voltage, and phase of the first power supply branch are consistent with those of the second power supply branch.
When the flexible cable 30 is laid, the mobile gas turbine generator set 100 with the bypass function sometimes encounters adverse physical environments such as natural barrier barriers of high-rise buildings, rivers, mountains and the like in actual work, and is difficult to implement. When the gas turbine on-board generator 10 is connected, multiple points can be considered, and reverse power supply can be performed if necessary, for example, when point E in fig. 2 is a natural barrier such as a high-rise building, a river, a mountain peak, and the like, and no connection condition is provided, the power supply of the gas turbine generator 10 can be connected to point F in fig. 2, and power is supplied to the power receiving user U through point F, so that power supply operation is more flexible, and normal power receiving of the power receiving user is ensured.
In an alternative embodiment, referring to fig. 2, the current carrying capacity of the flexible cable is greater than or equal to 200A/10 KV. The utility model discloses when setting up the current-carrying capacity of flexible cable 30 in second power supply branch L2 into more than or equal to 200A 10KV for flexible cable 30 can satisfy the commentaries on classics of electric current more than or equal to 200A's circuit and supply, thereby is favorable to satisfying the power supply of different electric current demands. Of course, if the trunk line current has exceeded flexible cable 30's current-carrying capacity in the actual distribution network, when leading to current flexible cable 30 can not satisfy the commentaries on classics of corresponding current circuit, because the utility model discloses introduced first power supply branch road L1 and second power supply branch road L2, consequently accessible first power supply branch road L1 and second power supply branch road L2 are supplied power to the powered user U simultaneously to increase power supply capacity, satisfy the current demand of trunk line in the actual distribution network, ensure powered user U's normal power consumption demand.
In an alternative embodiment, referring to FIGS. 1 and 2, the on-board gas turbine engine generator 10 is rated at 10 KV. When the voltage level of the on-vehicle gas turbine generator 10 is set to 10KV, the electric quantity that can be generated can satisfy the basic demand of the conventional powered user U, so that the power supply to the powered user U can be realized.
In an alternative embodiment, the on-board gas turbine generator 10, the first supply branch L1 and the second supply branch L2 are integrated on the same generator car. So be equivalent to and integrate the by-pass car (being first power supply branch road) on a car with the power generating car (second power supply branch road and on-vehicle gas turbine generator), can be according to the on-the-spot concrete condition of the operation of not cutting off the power supply, use different combination scheme in a flexible way, make same power generating car possess two kinds of power supply branch roads, in some maintenance projects, the line upgrades and reforms transform the project, in large-scale operation projects such as power supply project of guarantor, carry out load switching in advance to the user that relates to the maintenance region, can realize the target of guaranteeing that the user does not cut off the power in long-time maintenance process, user's power off time has effectively been reduced, let maintenance reform transform work arrange more nimble, the pressure that construction team overtaken the progress has been slowed down, the work load of operation team switching-off operation has also been alleviateed, when.
In an alternative embodiment, referring to fig. 1 and 2, the mobile gas turbine generator set 100 with bypass function further includes a utility power input control cabinet and a gas turbine generator set control cabinet, the first switch K1 is located in the utility power input control cabinet, and the second switch K2 is located in the gas turbine generator set control cabinet. The first switch K1 and the second switch K2 are respectively arranged in the commercial power input control cabinet and the gas turbine generator set control cabinet, the commercial power input control cabinet and the gas turbine generator set control cabinet are effectively isolated, mutual interference is avoided, and therefore the power supply reliability of the mobile gas turbine generator set 100 with the bypass function is improved.
To sum up, the utility model provides a pair of removal type gas turbine generating set with bypass function has realized following beneficial effect at least:
the bypass vehicle (namely the first power supply branch) and the generator vehicle (the second power supply branch and the vehicle-mounted gas turbine generator) are integrated on one vehicle, so that different combination schemes can be flexibly used according to the specific conditions of the non-power-off operation site. In large-scale operation projects such as maintenance projects, line upgrading and reconstruction projects, power protection and supply projects and the like, load switching is carried out on users related to maintenance areas in advance, the purpose of guaranteeing the users not to be powered off in a long-time maintenance process can be achieved, the power failure time of the users is effectively reduced, maintenance and reconstruction work arrangement is more flexible, the pressure of the progress of construction teams is relieved, the workload of operation team switching operation is also relieved, and good social benefits are obtained while good economic benefits are obtained.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A mobile gas turbine power plant with bypass function, comprising: the system comprises an on-board gas turbine generator, a first power supply branch and a second power supply branch;
the input end of the first power supply branch is used for being connected with a mains supply, the first power supply branch comprises a first switch, the first end of the first switch is connected with the input end of the first power supply branch, and the second end of the first switch is connected with the output end of the first power supply branch;
the input end of the second power supply branch is connected with the vehicle-mounted gas turbine generator, the second power supply branch comprises a second switch, the first end of the second switch is connected with the input end of the second power supply branch, and the second end of the second switch is connected with the output end of the second power supply branch.
2. The mobile gas turbine power plant with bypass function of claim 1, wherein said first power branch further comprises a first plug connected in series between said second end of said first switch and an output of said first power branch.
3. The mobile gas turbine power plant with bypass function of claim 1, wherein said second power supply branch further comprises a second plug connected in series between a second end of said second switch and an output of said second power supply branch.
4. The mobile gas turbine generator set with a bypass function as claimed in claim 3, wherein the second power supply branch comprises a flexible cable, one end of the flexible cable is electrically connected to the second plug, and the other end of the flexible cable is used as an output end of the second power supply branch.
5. The mobile gas turbine generator set with the bypass function as claimed in claim 4, wherein the ampacity of the flexible cable is 200A/10KV or more.
6. The mobile gas turbine power plant with bypass function of claim 1, wherein said on-board gas turbine generator has a voltage rating of 10 KV.
7. The mobile gas turbine generator set with bypass function as claimed in claim 1, wherein said on-board gas turbine generator, said first power supply branch and said second power supply branch are integrated on a same power generation car.
8. The mobile gas turbine generator set with the bypass function as recited in claim 1, further comprising a mains input control cabinet and a gas turbine generator set control cabinet, wherein the first switch is located in the mains input control cabinet and the second switch is located in the gas turbine generator set control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021990823.0U CN212296630U (en) | 2020-09-11 | 2020-09-11 | Movable gas turbine generator set with bypass function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021990823.0U CN212296630U (en) | 2020-09-11 | 2020-09-11 | Movable gas turbine generator set with bypass function |
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| Publication Number | Publication Date |
|---|---|
| CN212296630U true CN212296630U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021990823.0U Active CN212296630U (en) | 2020-09-11 | 2020-09-11 | Movable gas turbine generator set with bypass function |
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| CN (1) | CN212296630U (en) |
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- 2020-09-11 CN CN202021990823.0U patent/CN212296630U/en active Active
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