CN218549515U - Dynamic reactive power compensation device for medium-high voltage power grid - Google Patents
Dynamic reactive power compensation device for medium-high voltage power grid Download PDFInfo
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- CN218549515U CN218549515U CN202223003032.6U CN202223003032U CN218549515U CN 218549515 U CN218549515 U CN 218549515U CN 202223003032 U CN202223003032 U CN 202223003032U CN 218549515 U CN218549515 U CN 218549515U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a well high voltage electric wire netting developments reactive power compensator relates to the electric wire netting compensation field. The utility model discloses a: a refrigeration box and a reactive power compensation device; the power grid is connected with the reactive power compensation device through the refrigeration box; the reactive compensation device comprises a signal acquisition device, a signal processing control device, a chain type current converter and a feedback system; the signal acquisition device, the signal processing control device and the chain type current converter are sequentially connected; the chain-type current converter is connected with the signal acquisition device through the feedback system; and the output of the chain type converter is connected to a power grid. The utility model discloses an effective compensation and regulation and control to high voltage electric network, with the voltage control on each trunk line of distribution network in standard range, promote the whole operating stability of distribution network to promote.
Description
Technical Field
The utility model relates to a power grid compensation field, more specifically the utility model relates to a well high voltage electric wire netting developments reactive power compensator that says so.
Background
In recent years, power distribution networks have changed dramatically. In order to meet the demand of continuously increasing load, the scale and the capacity of the power distribution network are rapidly enlarged, so that the structure of the original complex power distribution network is more complex, the development of the power distribution network in partial areas and the increase of the load show asynchronous phenomena, and the tail end voltage of the power distribution network is gradually reduced. In addition, under the background that the current technological level is continuously improved, more and more sensitive loads with extremely high requirements on voltage appear in the power distribution network, the operation burden of the power distribution network is further increased, the problem that the power flow flows reversely easily and finally overvoltage occurs in the power distribution network is caused.
The importance of reactive power compensation of a power distribution network and the solution of practical problems have become common knowledge in the industry, but more research is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a well high voltage electric wire netting developments reactive power compensator has realized effective compensation and regulation and control to high voltage electric wire netting, with the voltage control on each trunk line of distribution network in standard range, promotes the whole operating stability of distribution network and promotes.
In order to realize the purpose, the utility model adopts the following technical scheme:
a dynamic reactive power compensation device for a medium-high voltage power grid comprises: a refrigeration box and a reactive power compensation device;
the power grid is connected with the reactive power compensation device through the refrigeration box;
the reactive compensation device comprises a signal acquisition device, a signal processing control device, a chain type current converter and a feedback system; the signal acquisition device, the signal processing control device and the chain type current converter are sequentially connected; the chain type current converter is connected with the signal acquisition device through the feedback system; and the output of the chain type converter is connected to a power grid.
Optionally, the system further comprises a manipulation control interface, and the manipulation control interface is connected with the signal processing control device.
Optionally, the signal processing control device is provided with a communication interface, and the communication interface is used for connecting a mobile terminal.
Optionally, the device further comprises an amplifying circuit, and the signal processing control device is connected with the chain-type converter through the amplifying circuit.
Optionally, a refrigeration controller is arranged inside the refrigeration box, and the refrigeration controller is used for controlling the cooling of the refrigerant liquid in the refrigeration box.
Optionally, a temperature sensor and an MCU chip are arranged inside the refrigeration controller, and the MCU chip is connected to the temperature sensor.
Optionally, a cooling fan is further arranged inside the refrigeration box.
Optionally, the signal processing and controlling device includes a process control device, a thyristor triggering device, a pulse forming and driving device, a protection circuit, and a display and communication module; the process control device, the thyristor trigger device, the pulse forming and driving device, the protection circuit and the display and communication module are connected in sequence.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a medium-high voltage electric wire netting dynamic reactive power compensator has following beneficial effect:
1. the interior of the installation bin is effectively cooled through the refrigeration box, so that the normal work of the compensation module in the work box is ensured, and the condition that components in the work box are damaged due to overhigh temperature is avoided. A
2. By the design and application of the reactive power compensation device power control technology, the compensation power and the device running power are simultaneously controlled, and the problem of control deviation existing in the traditional control method is solved.
3. The method can optimize the quality of the electric energy at the connection part of the voltage load and the public power grid, has a remarkable optimization effect, can greatly improve the voltage power, balance the current distribution of three-phase electricity, eliminate harmonic waves, stabilize voltage fluctuation and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions 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 the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The embodiment of the utility model discloses well high voltage electric network dynamic reactive power compensator, as shown in fig. 1, include: a refrigeration box and a reactive power compensation device;
the power grid is connected with the reactive power compensation device through the refrigeration box;
the reactive compensation device comprises a signal acquisition device, a signal processing control device, a chain type current converter and a feedback system; the signal acquisition device, the signal processing control device and the chain type current converter are sequentially connected; the chain type current converter is connected with the signal acquisition device through a feedback system; and the output of the chain type converter is connected to a power grid.
The control system also comprises a control interface which is connected with the signal processing control device.
The signal processing control device is provided with a communication interface which is used for connecting the mobile terminal.
The signal processing control device is connected with the chain type converter through the amplifying circuit.
The inside refrigeration controller that is provided with of refrigeration case, refrigeration controller are used for controlling the cooling of the refrigerant liquid in the refrigeration case. The refrigeration controller is internally provided with a temperature sensor and an MCU chip, and the MCU chip is connected with the temperature sensor. The inside cooling fan that still is provided with of refrigeration case.
The refrigeration controller may control the refrigeration efficiency of the refrigerator based on the temperature acquired by the temperature sensor. For example: and when the temperature detected by the first temperature sensor reaches a first temperature threshold value or the temperature detected by the second temperature sensor reaches a second temperature threshold value, controlling the refrigerating power of the refrigerator to be increased.
The signal processing control comprises a process control device, a thyristor trigger device, a pulse forming and driving device, a protection circuit and a display and communication module; the process control device, the thyristor trigger device, the pulse forming and driving device, the protection circuit and the display and communication module are sequentially connected.
Specifically, the signal acquisition circuit mainly realizes three-phase voltage, converts the current of the compensation device into a voltage signal, and finally converts the voltage signal into voltage suitable for the allowable input range of the A/D chip after the processing of the low-pass filter, the anti-aliasing filter and the isolation amplifier. The signal processing control part completes the processing of the acquired signals, finally obtains the dynamic compensation susceptance of the TCR branch circuit and converts the dynamic compensation susceptance into a corresponding trigger control angle. The thyristor trigger mainly completes the formation, the drive amplification and the isolation of a trigger pulse signal to obtain the thyristor. And inputting the reactive compensation power and the current running power of the power distribution network into the controller as input items, and obtaining the power of the final control device through the running and power scheduling of the controller.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a well high voltage electric network dynamic reactive power compensator which characterized in that includes: a refrigeration box and a reactive power compensation device;
the power grid is connected with the reactive power compensation device through the refrigeration box;
the reactive power compensation device comprises a signal acquisition device, a signal processing control device, a chain type current converter and a feedback system; the signal acquisition device, the signal processing control device and the chain type current converter are sequentially connected; the chain-type current converter is connected with the signal acquisition device through the feedback system; and the output of the chain type converter is connected to a power grid.
2. The medium-high voltage power grid dynamic reactive power compensation device according to claim 1, further comprising an operation control interface, wherein the operation control interface is connected with the signal processing control device.
3. The dynamic reactive power compensation device for the medium-high voltage power grid according to claim 1, wherein the signal processing and controlling device is provided with a communication interface, and the communication interface is used for connecting a mobile terminal.
4. The dynamic reactive power compensation device for the medium-high voltage power grid according to claim 1, further comprising an amplifying circuit, wherein the signal processing control device and the chain-type converter are connected through the amplifying circuit.
5. The medium-high voltage power grid dynamic reactive power compensation device according to claim 1, wherein a refrigeration controller is arranged inside the refrigeration box, and the refrigeration controller is used for controlling cooling of a refrigerant liquid in the refrigeration box.
6. The dynamic reactive power compensation device for the medium-high voltage power grid according to claim 5, wherein a temperature sensor and an MCU chip are arranged inside the refrigeration controller, and the MCU chip is connected with the temperature sensor.
7. The medium-high voltage power grid dynamic reactive power compensation device according to claim 1, wherein a cooling fan is further arranged inside the refrigeration box.
8. The dynamic reactive power compensation device for the medium-high voltage power grid according to claim 1, wherein the signal processing and control device comprises a process control device, a thyristor trigger device, a pulse forming and driving device, a protection circuit and a display and communication module; the process control device, the thyristor trigger device, the pulse forming and driving device, the protection circuit and the display and communication module are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223003032.6U CN218549515U (en) | 2022-11-11 | 2022-11-11 | Dynamic reactive power compensation device for medium-high voltage power grid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223003032.6U CN218549515U (en) | 2022-11-11 | 2022-11-11 | Dynamic reactive power compensation device for medium-high voltage power grid |
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| CN218549515U true CN218549515U (en) | 2023-02-28 |
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| CN202223003032.6U Active CN218549515U (en) | 2022-11-11 | 2022-11-11 | Dynamic reactive power compensation device for medium-high voltage power grid |
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