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Active power regulating and controlling system with direct-current resistor and branch resistor

A technology of DC resistance and branch resistance, applied in the field of electric power, can solve problems such as single transmission mode

Inactive Publication Date: 2016-12-07
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an active power control system with DC resistance and branch resistance, which is used to improve the shortcoming of single power transmission mode and improve the reliability of the control system

Method used

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  • Active power regulating and controlling system with direct-current resistor and branch resistor
  • Active power regulating and controlling system with direct-current resistor and branch resistor
  • Active power regulating and controlling system with direct-current resistor and branch resistor

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0024] The core of the invention is to provide an active power control system with DC resistance and branch resistance.

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] figure 2 A structural diagram of an active power control system with...

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Abstract

The invention discloses an active power regulating and controlling system with a direct-current resistor and a branch resistor. The active power regulating and controlling system comprises an alternating-current power controllable unit and an alternating-current power natural control unit. The alternating-current power natural control unit comprises a switch arranged between an alternating-current bus and a branch alternating-current bus. The alternating-current power controllable unit comprises a rectifier, a direct-current resistor and an inversion branch unit, and the inversion branch unit comprises a branch resistor and an inverter. The system uses the alternating-current power controllable unit and the alternating-current power natural control unit for achieving mutual spare of natural current conveying and active power regulation of electric energy. During separate operation and control of the alternating-current power natural control unit, natural power is formed by a distributing line according to output power of line and load impedance; during separate operation of the alternating-current power controllable unit, output power of the low-pressure power transmission line can be controlled by adopting a constant current, constant voltage and constant power control method to form controllable power.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an active power control system with DC resistance and branch resistance. Background technique [0002] In traditional 110kV, 220kV, 500kV and other high-voltage and ultra-high-voltage AC transmission systems, the opening and disconnection of transmission lines are generally controlled by AC circuit breakers 100, such as figure 1 shown. figure 1 It is a structural diagram of a power transmission control system in the prior art. The output power of the transmission line is distributed according to the natural flow, and is determined by the line impedance and load parameters. It is difficult to control the transmission power of the transmission line in real time through the mechanical AC circuit breaker 100 . [0003] In modern power systems, AC and DC hybrid transmission technology is used. The principle of direct current transmission is to convert alternating current i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 吴杰康
Owner GUANGDONG UNIV OF TECH
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