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A Gain Adaptive Control Method of SVC Voltage Regulator Based on Closed-loop Integration

A voltage regulator and closed-loop technology, which is applied in the field of gain adaptive control of SVC voltage regulator based on closed-loop integration, can solve the problems of SVC response time increase, control loop oscillation, instability, etc., to reduce gain, suppress control oscillation, Good system stability

Active Publication Date: 2018-01-19
CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the gain of the voltage regulator is unreasonable, the SVC response time will increase significantly, and the control loop may oscillate or even become unstable

Method used

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  • A Gain Adaptive Control Method of SVC Voltage Regulator Based on Closed-loop Integration
  • A Gain Adaptive Control Method of SVC Voltage Regulator Based on Closed-loop Integration
  • A Gain Adaptive Control Method of SVC Voltage Regulator Based on Closed-loop Integration

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Embodiment Construction

[0036] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the 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.

[0038] The gain adaptive control method based on closed-loop integral control proposed by the present invention is applied to the gain control of the SVC voltage regulator of the power transmis...

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Abstract

The invention relates to an SVC voltage regulator gain self-adaptive control method based on closed-loop integration. The method comprises the following steps: 1) carrying out oscillation detection on susceptance per-unit value Bpu signals output by a voltage regulator, and carrying out quick gain adjustment when detecting that the output of the voltage regulator has oscillation; and 2) carrying out gain optimization on the susceptance per-unit value Bpu signals output by the voltage regulator if the oscillation of the susceptance per-unit value Bpu signals output by the voltage regulator disappears for 30 s. The SVC voltage regulator gain self-adaptive control method based on the closed-loop integration adopts normal adjustment without interfering SVC, does not need to carry out short circuit capacity estimation, adopts the closed-loop integration method to realize gain optimization, and monitors whether the gain is reasonable and carries out real-time gain optimization according to the oscillation detection and stabilization detection results.

Description

technical field [0001] The invention relates to a gain adaptive control method of an SVC voltage regulator, in particular to a closed-loop integration-based gain adaptive control method of an SVC voltage regulator. Background technique [0002] With the expansion of the power grid scale and the increasingly complex operating environment in China, in order to improve the safety, stability and economic operation level of the power grid in the transformation of the backbone power grid and the construction of the UHV power grid, the receiving end system should have sufficient reactive power reserves, especially When the receiving end system has voltage stability problems, it is necessary to configure dynamic reactive power compensation equipment in the hub substation of the receiving end system. [0003] Static var compensation (SVC) voltage regulators have the functions of improving voltage control, improving static and transient stability of the system, increasing power transm...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCY02E40/10
Inventor 李兰芳赵刚崔大伟陈振洋张松
Owner CHINA EPRI SCIENCE & TECHNOLOGY CO LTD