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TCSC (thyristor controlled series compensator) and SVC (static var compensator) joint debugging control system and working method based on saddle node bifurcation theory

A control system and joint debugging technology, applied in flexible AC transmission systems, reactive power adjustment/elimination/compensation, AC networks to reduce harmonics/ripples, etc., and can solve problems such as large interaction effects

Active Publication Date: 2014-09-17
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

TCSC and SVC are installed on the same bus at the same time, there may be a certain high-frequency interaction between the two. If SVC and TCSC are installed in the system at the same time, generally there is a certain possibility of interaction between the two Very big

Method used

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  • TCSC (thyristor controlled series compensator) and SVC (static var compensator) joint debugging control system and working method based on saddle node bifurcation theory
  • TCSC (thyristor controlled series compensator) and SVC (static var compensator) joint debugging control system and working method based on saddle node bifurcation theory
  • TCSC (thyristor controlled series compensator) and SVC (static var compensator) joint debugging control system and working method based on saddle node bifurcation theory

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Embodiment

[0062] Embodiment: a kind of TCSC and SVC joint debugging control system based on saddle-node bifurcation theory (see image 3), characterized in that it includes a saddle node bifurcation adaptive controller, a communication channel, a TCSC control unit, an SVC control unit, a TCR branch of a phase-controlled reactor circuit, a first joint control system and a second joint control system; Wherein, the TCSC control unit is bidirectionally connected to the first joint commissioning control unit, and its output terminal is connected to the input terminal of the communication channel; the communication channel is bidirectionally connected to the first joint commissioning control unit and the second joint commissioning control unit respectively connected, and its input end is also connected to the output end of the SVC control unit; the SVC control unit is bidirectionally connected to the second joint debugging control unit, and its output end is connected to the input end of the T...

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Abstract

The invention discloses a TCSC (thyristor controlled series compensator) and SVC (static var compensator) joint debugging control system based on a saddle node bifurcation theory. The system is characterized by comprising a saddle node bifurcation self-adaptive controller, a communication channel, a TCSC control unit, an SVC control unit, a phase-control reactor loop TCR (temperature coefficient of resistance) branch, a first joint debugging control system and a second joint debugging control system; and a working method of the system comprises the steps of state judgment, data processing and analysis, instruction transmission, judgment stabilization and action in accordance with instructions. The system has the advantages that firstly, a voltage is debugged smoothly, and the voltage has small fluctuation; secondly, the network loss is reduced and balanced inactively at the scene; thirdly, the interinfluence between FACTS (facilities administration control and time schedule) devices is reduced; fourthly, the operability is high, the cost is low, and the operation is simple; and fifthly, an adjustable space is provided for the inactive voltage optimization while a system enters a small amplitude change period in an inactive load way.

Description

(1) Technical field: [0001] The present invention belongs to the application field of power electronic technology in power system, especially a kind of TCSC (Thyristor Controlled Series Compensator—controllable series compensation device based on thyristor) and SVC (Staic Var Compensator—— static var compensation device) joint debugging control system and its working method. (2) Background technology: [0002] SVC is composed of phase control reactor (ie TCR), harmonic filter, shunt capacitor and control system, which can realize reactive power smooth compensation. The SVC mainly solves the problem of reactive power compensation of the power grid under transient conditions. It can ensure the stability of the grid voltage and the adjustment process is smooth. Especially in severe weather conditions, the SVC device can also realize the rapid melting of ice on the transmission line, which is irreplaceable. status. However, with the improvement of power grid safety management ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18H02J3/01
CPCY02E40/12Y02E40/14Y02E40/10Y02E40/40
Inventor 周雪松翟化欣马幼捷
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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