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Subsynchronous resonance suppression method, device, storage medium and processor

A sub-synchronous resonance and sub-synchronization technology, applied in circuit devices, reducing/preventing power oscillation, AC network circuits, etc., can solve problems such as poor results

Active Publication Date: 2020-12-18
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 suppression method, device, storage medium and processor
  • Subsynchronous resonance suppression method, device, storage medium and processor
  • Subsynchronous resonance suppression method, 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 following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 ...

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Abstract

The invention discloses a subsynchronous resonance suppression method, device, storage medium and processor. Wherein, the method includes: determining the first control parameter of the additional excitation damping controller and the second control parameter of the machine-side subsynchronous damping controller, wherein the first control parameter includes the gain and the gain of each control loop of the additional excitation damping controller The phase shift time constant, the second control parameter includes the gain of each control loop of the subsynchronous damping controller at the machine end, the phase shift time constant and the phase change parameter; according to the first control parameter and the second control parameter, the additional excitation damping controller is suppressed Subsynchronous resonance with the circuit where the machine-side subsynchronous damping controller is located. The invention solves the technical problem in the related art that a separate controller parameter is used to suppress the sub-synchronous resonance, resulting in poor effect.

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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Patent Type & Authority Patents(China)
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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