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N-type hybrid flexible tuning device

A tuning device, flexible technology, applied in the direction of harmonic reduction device, circuit device, flexible AC transmission system, etc.

Pending Publication Date: 2016-10-26
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of passive tuning circuits in the prior art, the present invention provides a π-type hybrid flexible tuning device

Method used

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Embodiment Construction

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0069] A π-type hybrid flexible tuning device provided by an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0070] image 3 It is a schematic diagram of a π-type hybrid flexible tuning device in an embodiment of the present invention. As shown in the figure, the tuni...

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Abstract

The invention provides an n-type hybrid flexible tuning device, which comprises a static synchronous compensator STATCOM and / or a static synchronous series compensator SSSC, wherein the static synchronous compensator STATCOM is connected to a power transmission line between an inductive compensation unit and a capacitive compensation unit in parallel; and the static synchronous series compensator SSSC is connected to the power transmission line at one side of the inductive compensation unit in series. Compared with the prior art, the n-type hybrid flexible tuning device provided by the invention has the advantages that output can be flexibly adjusted to adapt to changes of the structure, the parameters and the operation mode of the power transmission line; the condition that the power transmission line has the characteristics of a half-wavelength power transmission system is ensured; and meanwhile, the n-type hybrid flexible tuning device has the functions of power factor compensation, flexible grid-connected control, transient overvoltage suppression, load impedance matching, steady-state voltage control and the like.

Description

technical field [0001] The invention relates to the technical field of half-wavelength AC power transmission, in particular to a π-type hybrid flexible tuning device. Background technique [0002] Half Wavelength AC Transmission (HWACT) refers to the ultra-long-distance three-phase AC transmission whose electrical distance of power transmission is close to one power frequency half wavelength, that is, 3000km (50Hz) or 2600km (60Hz). With the increasing demand for ultra-long-distance and high-power transmission, half-wavelength AC power transmission technology, especially UHV half-wavelength AC power transmission, has received a lot of attention and research again. A half-wavelength AC line without loss is like an ideal transformer with a transformation ratio of -1.0. The voltage at the head end and the end voltage are the same and opposite in phase. At the same time, the half-wavelength AC transmission technology also has the following advantages: First, the power factor of...

Claims

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Application Information

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IPC IPC(8): H02J3/01H02J3/18H02J3/38
CPCH02J3/01H02J3/18H02J3/1807H02J3/38Y02E40/10Y02P80/10Y02E40/40
Inventor 戴朝波王鑫于弘洋
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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