Circular capacitor array reactive power compensation device

A capacitor array and compensation device technology, applied in reactive power compensation, circuit devices, reactive power adjustment/elimination/compensation, etc., can solve the problem that fixed capacitor compensation cannot meet the reactive power requirements of the system, and achieve reactive power compensation desired effect

Active Publication Date: 2022-04-05
STATE GRID ZHEJIANG HANGZHOU XIAOSHAN POWER SUPPLY CO +3
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  • Application Information

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Problems solved by technology

FC and TSC are simple, easy to operate, economical and other optimizations, and they also have good compensation characteristics, but with the improvement of power quality requirements, the system puts forward higher requirements for reactive power adjustment accuracy, and the fixed capacitance compensation of TSC can no longer Meet the reactive power requirements of the system

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  • Circular capacitor array reactive power compensation device
  • Circular capacitor array reactive power compensation device
  • Circular capacitor array reactive power compensation device

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the application clearer, the technical solution of the application will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiment is the embodiment of the application. Some, but not all, embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0057] This patent proposes a circular capacitor array reactive power compensation device. The device can select appropriate capacitance values ​​for series-parallel connection and star and delta connection according to the actual situation, so that the limited capacitance can be used to match the equivalent capacitance with different impedance values. And then achieve more accurate compe...

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Abstract

The application discloses a reactive power compensation device of a circular capacitor array, which relates to power equipment. In the device, the first to Nth auxiliary switches are connected in series to form a ring; the first to Nth capacitor units are all composed of capacitors and switching switches connected in series; the first end of the first capacitor unit is connected to the connection point between the first auxiliary switch and the Nth auxiliary switch, and the first end of the Mth capacitor unit is connected to the M-1th auxiliary switch and The connection point of the Mth auxiliary switch; the second ends of the first to the Nth capacitor units are all connected to each other; the first end of the first access switch is connected to the first end of the first capacitor unit, and the second access switch is connected to the first end of the first capacitor unit. The first terminals of the two capacitor units are connected, and the first terminal of the third access switch is connected with the second terminal of the first capacitor unit. The invention can realize the access of various capacitance values ​​through the combination of switches, and satisfies the need of the power system for reactive power compensation of large capacitance and small capacitance.

Description

technical field [0001] The application relates to power equipment, in particular to a circular capacitor array reactive power compensation device. Background technique [0002] In the current power grid operation system, system reactive power compensation mainly uses fixed capacitors (FC) and thyristor switched capacitors (TSC), which can perform fast and deep reactive power compensation to achieve power quality optimization. FC and TSC are simple, easy to operate, economical and other optimizations, and they also have good compensation characteristics, but with the improvement of power quality requirements, the system puts forward higher requirements for reactive power adjustment accuracy, and the fixed capacitance compensation of TSC can no longer Meet the reactive power requirements of the system. Contents of the invention [0003] In view of this, the purpose of this application is to provide a circular capacitor array reactive power compensation device to achieve hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCH02J3/18H02J3/1821Y02E40/30
Inventor 王鹏程陈炜莫洪亮王邢邢鲁晓枫马小平沈狄龙姚芳芳朱连芳张永军
Owner STATE GRID ZHEJIANG HANGZHOU XIAOSHAN POWER SUPPLY CO
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