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Optimal parameter tuning method for wide-area damping controller based on inter-area oscillation mode

An oscillation mode and wide-area damping technology, which is applied in the direction of reducing/preventing power oscillation, AC network circuits, circuit devices, etc., can solve problems such as uncontrollable modes, stagnant optimization process, and unobservable problems

Active Publication Date: 2018-04-13
SHANDONG UNIV
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Problems solved by technology

However, these optimization problems all have the phenomenon of "shadowing", that is, when a mode weakly coupled with WADCs becomes the most critical mode, the optimization process stagnates
Obviously, since WADCs are basically uncontrollable and unobservable for these weakly coupled modes, the obtained controller parameters are not optimal

Method used

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  • Optimal parameter tuning method for wide-area damping controller based on inter-area oscillation mode
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  • Optimal parameter tuning method for wide-area damping controller based on inter-area oscillation mode

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[0100] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0101] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0102] Such as figure 1 Shown: The optimal parameter tuning method of WADCs based on interval oscillation mode ...

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Abstract

The invention discloses an optimal parameter tuning method for a wide-area damping controller based on an inter-area oscillation mode, which enhances the damping ratio of a specified inter-area mode rather than a global mode. Target modes can be tracked reliably through a perturbation method in an optimization process. An optimization model proposed by the invention can accurately describe controlcharacteristics of WADCs (Wide-Area Damping Controllers), and avoid a potential mode shielding condition, thereby achieving the optimal control performance.

Description

technical field [0001] The invention relates to an optimal parameter tuning method of wide-area damping controllers (Wide-Area Damping Controllers, WADCs) based on an interval oscillation mode. Background technique [0002] With the rise of the Global Energy Internet, the scale of the interconnected power system is gradually increasing, and the problem of interval low-frequency oscillation is more significant. The traditional solution is to install a power system stabilizer (Power System Stabilizer, PSS), but because its feedback control signal comes from the local area, it cannot effectively damp the interval oscillation of the interconnected power system. [0003] The emergence of Wide-Area Measurement System (WAMS) has brought new opportunities for the development of stability analysis and control of large-scale interconnected power systems. The low-frequency oscillation control of the interconnected grid based on the wide-area information provided by WAMS can obtain bet...

Claims

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Application Information

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IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 叶华牟倩颖刘玉田
Owner SHANDONG UNIV
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