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Subsynchronous resonance inhibition method, subsynchronous resonance inhibition device, storage medium and processor

A sub-synchronous resonance and sub-synchronization technology, applied in the direction of reducing/preventing power oscillation, can solve problems such as poor results

Active Publication Date: 2019-09-06
CHNA ENERGY INVESTMENT CORP LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a method, device, storage medium, and processor for suppressing subsynchronous resonance, so as to at least solve the technical problem in the related art that a separate controller parameter is used to suppress subsynchronous resonance, resulting in poor results

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  • Subsynchronous resonance inhibition method, subsynchronous resonance inhibition device, storage medium and processor
  • Subsynchronous resonance inhibition method, subsynchronous resonance inhibition device, storage medium and processor
  • Subsynchronous resonance inhibition method, subsynchronous resonance inhibition device, storage medium and processor

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, 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 are only It is an embodiment of a part 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 shall fall within the protection scope of the present invention.

[0031] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circ...

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Abstract

The invention discloses a subsynchronous resonance inhibition method, a subsynchronous resonance inhibition device, a storage medium and a processor. The method comprises the following steps: determining the first control parameters of an additional excitation damping controller and the second control parameters of a generator terminal subsynchronous damping controller, wherein the first control parameters comprise the gain and phase shift time constant of each control loop of the additional excitation damping controller, and the second control parameters comprise the gain, phase shift time constant and phase change parameter of each control loop of the generator terminal subsynchronous damping controller; and according to the first control parameters and the second control parameters, inhibiting the subsynchronous resonance of the circuits of the additional excitation damping controller and the generator terminal subsynchronous damping controller. The method solves the technical problem of poor effect caused by the fact that the subsynchronous resonance is inhibited by using the independent controller parameters in correlation technique.

Description

technical field [0001] The present invention relates to the field of power system control, in particular to a subsynchronous resonance suppression method, device, storage medium and processor. Background technique [0002] In related technologies, large-capacity series capacitor compensation is an effective and economical way to improve the transmission capacity of the power transmission system, but when the power source is a thermal power unit, sub-synchronous resonance may occur, endangering the safety of the shafting of the generator set and the stability of the power system . [0003] In order to ensure the safe and stable operation of the power system when large-scale new energy is connected to the grid, an additional excitation damping controller or a machine-end subsynchronous damping controller can be connected to the power system to suppress the hazards of subsynchronous resonance. However, the traditional method adopts the ideas of separate design, fails to consid...

Claims

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Application Information

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IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 郑少亮李绍辉杜建郭锦基张相东张君毅
Owner CHNA ENERGY INVESTMENT CORP LTD
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