CN210007387U - multi-terminal direct-current valve group fault power reconstruction control device - Google Patents
multi-terminal direct-current valve group fault power reconstruction control device Download PDFInfo
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- CN210007387U CN210007387U CN201921050364.5U CN201921050364U CN210007387U CN 210007387 U CN210007387 U CN 210007387U CN 201921050364 U CN201921050364 U CN 201921050364U CN 210007387 U CN210007387 U CN 210007387U
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Abstract
The utility model discloses an multiterminal direct current valves fault power reconsitution controlling means, including setting up the power collector at each end direct current valves, main website numerical value comparator, the stable discrimination comparator of direct current power restraint, main website power controller and setting up the executor at each end direct current conversion station, the output of power collector all is connected with the input of main website numerical value comparator, the stable discrimination comparator's of direct current power restraint input, the stable discrimination comparator's of direct current power restraint output, the output of main website numerical value comparator all is connected with main website power controller's input, main website power controller's output is connected with the input of executor, other terminals correspond the valves power control and provide effectual control tool for certain end valves of multiterminal direct current system behind the valve group trouble, can effectively improve the valves power operation ability behind the multiterminal direct current trouble, can effectively improve electric power system safety and stability level, and have simple structure, use characteristics simple and convenient to handle.
Description
Technical Field
The utility model relates to an electric power system safety and stability control technical field especially relates to kinds of multiterminal direct current valves fault power reconsitution controlling means.
Background
The conventional direct current is two ends, namely a sending end and a receiving end, the valve group power of the sending end and the receiving end completely corresponds to each other, after a valve group at one end of fails, the valve group power at the other end of automatically reduces to zero, and the power of the residual direct current valve group after the direct current fault does not need to be redistributed and controlled.
In the actual power grid development, a multi-end direct-current system begins to appear, if a traditional two-end direct-current power control device is still adopted, the power of the valve group corresponding to the other end can be reduced to zero only after a certain end valve group fails, the power of the valve group corresponding to the other end cannot be controlled repeatedly after the certain end valve group fails, and the power operation capacity of the residual valve group at the other end of direct current cannot be fully exerted.
Disclosure of Invention
The embodiment of the utility model provides an aim at providing kinds of multiterminal direct current valves trouble power reconfiguration controlling means, for other pairs correspond valves power control and provide effectual control instrument behind certain end valves trouble of multiterminal direct current system, can effectively improve valves power operational capability behind the multiterminal direct current trouble, can effectively improve electric power system safety and stability level to have simple structure, use easy and simple to handle's characteristics.
In order to achieve the above object, an embodiment of the present invention provides kinds of multi-port dc valve set fault power reconfiguration control devices, including a power collector, a main station numerical comparator, a dc power constraint stability judgment comparator, a main station power controller and an actuator, which are arranged at each end of a dc converter station, which are arranged at each end of the dc valve set;
the output end of the power collector is connected with the input end of the main station numerical value comparator and the input end of the direct current power constraint stability judgment comparator; the output end of the direct current power constraint stability discrimination comparator and the output end of the main station numerical value comparator are both connected with the input end of the main station power controller; and the output end of the master station power controller is connected with the input end of the actuator.
As an improvement of the scheme, the input end of the power collector is connected with the electric secondary circuit of the direct-current valve group at each end.
As an improvement of the above scheme, the input end of the actuator is connected with the electrical secondary circuit of the direct current converter station at each end.
As a modification of the above scheme, the master station value comparator is 74LS 85.
As an improvement of the above scheme, the dc power constraint stabilization discriminant comparator is 74LS 85.
Compared with the prior art, the utility model discloses an kinds of multiterminal direct current valves fault power reconsitution controlling means, through multiterminal direct current valves fault power reconsitution controlling means is including setting up power collector, main website numerical value comparator, the stable discrimination comparator of direct current power restraint, main website power controller and setting up the executor at each end direct current converter station at each end direct current valves, the output of power collector all with the input of main website numerical value comparator, the input of the stable discrimination comparator of direct current power restraint is connected, the output of the stable discrimination comparator of direct current power restraint, the output of main website numerical value comparator all with the input of main website power controller, the output of main website power controller with the input of executor is connected, the structure is used to, each end power collector gathers the real-time operating power of direct current valves, and sends it to main website numerical value comparator and the stable discrimination comparator of direct current power restraint, make main website numerical value comparator carry out the comparison calculation according to the rated power that this real-time operating power collector corresponds with this direct current valves and this direct current valves of the group carries out the correct power of the operation, and sends it to the stable discrimination comparator of main website to the stable discrimination comparator of direct current power restraint, and the effective discrimination that the system of direct current power restraint of the system of the correct power restraint of the control of all right power of the control of the direct current power of the reconfiguration, thereby the direct current power of all ends of the correct power of the direct current power of the system of the correct power of the system of the correct power of the reconfiguration, and the correct power of the system of the reconfiguration, and the correct power of the system of the control of the correct power of the control of the system of the correct power of the system of the.
Drawings
Fig. 1 is a schematic structural diagram of kinds of multi-port dc valve set fault power reconfiguration control devices according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a three-terminal dc system according to an embodiment of the present invention;
101, a power collector; 102. a master station value comparator; 103. a direct current power constraint stability discrimination comparator; 104. a master station power controller; 105. an actuator; 106. a valve block; 107. a direct current converter station.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.
Referring to fig. 1, it is a schematic structural diagram of kinds of multi-port dc valve set fault power reconfiguration control devices in the embodiment of the present invention, where the multi-port dc valve set fault power reconfiguration control devices include a power collector 101 disposed on each port dc valve set, a main station numerical value comparator 102, a dc power constraint stability discrimination comparator 103, a main station power controller 104, and an actuator 105 disposed on each port dc converter station;
the output end of the power collector 101 is connected with the input end of the main station numerical value comparator 102 and the input end of the direct current power constraint stability judgment comparator 103; the output end of the direct current power constraint stability judgment comparator 103 and the output end of the main station numerical value comparator 102 are both connected with the input end of the main station power controller 104; the output of the master station power controller 104 is connected to the input of the actuator 105.
Preferably, the master station value comparator 102 is 74LS 85.
Preferably, the dc power constraint stability decision comparator 103 is 74LS 85.
It should be noted that the power collector 101 may be a device or a microprocessor chip with a power collecting function, such as an RCS-990A host information collecting apparatus. In this embodiment, the power collector 101 is configured to collect real-time operating power of each dc valve set 106 at each end in the multi-end dc system and rated power of each dc valve set 106. The master station value comparator 102 may be a device or microprocessor chip with value comparison functionality, such as the value comparator 74LS 85. In this embodiment, the master station numerical comparator 102 is configured to perform numerical comparison between the real-time operating power acquired by the power collector 101 and the rated power of each dc valve group 106 to obtain the remaining dc capacity of each dc valve group 106. The dc power constraint stability decision comparator 103 may be a device or a microprocessor chip with a numerical comparison function, such as the numerical comparator 74LS 85. In this embodiment, the dc power constraint stability discrimination comparator 103 compares the real-time operating power collected by the power collector 101 with the preset system stability power to discriminate the failed dc terminal, so as to obtain the system stability discrimination result. The master station power controller 104 may be an RCS-992A host stability control device, and is configured to perform power reconfiguration allocation on the received system stability determination result and the remaining dc capacity of each dc valve group 106 according to a preset fault power reconfiguration policy. Each terminal station executor 105 may be an RCS-992A type distributed safety and stability control device for executing a power allocation result transmitted by the master station power controller.
Preferably, the input end of the power collector 101 is connected to the electrical secondary circuit of the dc valve set 106 at each end.
Preferably, the input end of the actuator 105 is connected with the electrical secondary loop of each end dc converter station 107.
It should be noted that the input end of each end power collector 101 is connected to the electrical secondary circuit of each dc end valve group 106, and respectively collects three-phase current information of each valve group 106CT and three-phase voltage information of PT. The output of each terminal station actuator 105 is connected to an electrical secondary circuit controlled and protected by a dc converter station 107 at each end.
Referring to fig. 2, it is a schematic structural diagram of a three-terminal dc system in an embodiment of the present invention.
For example, the multi-terminal dc valve set fault power reconfiguration control apparatus of the present embodiment is applied to a three-terminal dc system, each terminal dc is composed of 4 valve packs 106 by two poles, wherein a dc terminal 1 is a sending terminal, a dc terminal 2, and a dc terminal 3 are receiving terminals, it can be known that a dc terminal 1 power is a sum of a dc terminal 2 power and a dc terminal 3 power, an input terminal of a power collector 101 of each terminal is connected to 4 valve packs 106 of each terminal, so that the power collector 101 collects a real-time operating power of each valve pack 106 of each terminal and a rated power of each valve pack 106, further, an output terminal of the power collector 101 is connected to an input terminal of a main station numerical value comparator 102 and an input terminal of a dc power constraint stability decision comparator 103, so that the main station numerical comparator 102 processes a remaining dc capacity of each terminal through input power data, the dc power constraint stability decision comparator 103 performs a stability decision according to a dc power constraint, if the dc power constraint of the dc terminal power reconfiguration power of the main station 104 is greater than a dc power, the dc terminal power of the main station 104, the main station 104 performs a fault power distribution according to a residual power distribution policy, if the dc power distribution policy of the dc terminal power distribution of the dc terminal fails, the dc terminal power distribution policy is greater than the dc terminal 3, the dc power distribution of the main station 104, the main station power distribution policy is greater than the dc power distribution of the main station 104, the dc terminal power distribution policy, the main station 104, the residual power distribution policy of the dc power distribution of the main station power distribution system is that the main station 10 is greater than the dc terminal power distribution of the main station 10.
The utility model discloses kinds of multiterminal direct current valves fault power reconfiguration controlling means that the embodiment discloses has following beneficial effect, multiterminal direct current valves fault power reconfiguration controlling means is including setting up power collector, main website numerical value comparator, the stable discrimination comparator of direct current power restraint at each end direct current valves, main website power controller and the executor of setting at each end direct current conversion station, the output of power collector all with the input of main website numerical value comparator, the input of the stable discrimination comparator of direct current power restraint is connected, the stable discrimination comparator's of direct current power restraint output, the main website numerical value comparator's of output all with main website power controller's input is connected, main website power controller's output with the input of executor is connected, the structure is used to above, each end power collector gathers the real-time running power of direct current valves, and sends it to main website numerical value comparator and the stable discrimination comparator of direct current power restraint to make main website numerical value comparator and direct current power restraint to the stable discrimination comparator, make main website numerical comparator carry out the comparison calculation according to the rated power that this real-time running power valve group corresponds with this direct current valves of this direct current valves, and the effective discrimination result of each other direct current power restraint of direct current power restraint system is carried out the correct power of control system to the reconfiguration, and the effective power of the surplus power of the system is carried out the comparison and the power of the reconfiguration according to the surplus power of the stable discrimination that the main website power is carried out the comparison of the system, thereby the effective power of the main website power of the system, and the effective power of the surplus power of the system, and the surplus power of the system is carried out the effective power of the surplus power of the correct power of the system, and the surplus power of the.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (5)
- The multi-terminal direct-current valve group fault power reconstruction control device is characterized by comprising a power collector, a main station numerical comparator, a direct-current power constraint stability judgment comparator, a main station power controller and an actuator, wherein the power collector, the main station numerical comparator, the direct-current power constraint stability judgment comparator and the main station power controller are arranged on each terminal direct-current valve group;the output end of the power collector is connected with the input end of the main station numerical value comparator and the input end of the direct current power constraint stability judgment comparator; the output end of the direct current power constraint stability discrimination comparator and the output end of the main station numerical value comparator are both connected with the input end of the main station power controller; and the output end of the master station power controller is connected with the input end of the actuator.
- 2. The multi-port dc valve bank fault power reconfiguration control device according to claim 1, wherein the input of said power harvester is connected to the electrical secondary loop of each port dc valve bank.
- 3. The apparatus according to claim 1, wherein the input end of the actuator is connected to the electrical secondary circuit of each dc converter station.
- 4. The multi-port dc valve set fault power reconfiguration control of claim 1, wherein said master station numerical comparator is 74LS 85.
- 5. The multi-port dc valve set fault power reconfiguration control device according to claim 1, wherein said dc power constraint stability decision comparator is 74LS 85.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050364.5U CN210007387U (en) | 2019-07-05 | 2019-07-05 | multi-terminal direct-current valve group fault power reconstruction control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050364.5U CN210007387U (en) | 2019-07-05 | 2019-07-05 | multi-terminal direct-current valve group fault power reconstruction control device |
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| Publication Number | Publication Date |
|---|---|
| CN210007387U true CN210007387U (en) | 2020-01-31 |
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|---|---|---|---|
| CN201921050364.5U Active CN210007387U (en) | 2019-07-05 | 2019-07-05 | multi-terminal direct-current valve group fault power reconstruction control device |
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| Country | Link |
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| CN (1) | CN210007387U (en) |
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- 2019-07-05 CN CN201921050364.5U patent/CN210007387U/en active Active
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