SYNTHESIS OF TWO-INPUT PSS BASED ON THE H∞ CONTROL THEORY
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- Folly Komla Agbenyo
- Hiroshima University
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- Yorino Naoto
- Hiroshima University
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- Sasaki Hiroshi
- Hiroshima University
書誌事項
- タイトル別名
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- SYNTHESIS OF TWO-INPUT PSS BASED ON THE H∞ CONTROL THEORY
- Synthesis of Two-Input PSS Based on the
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In the standard mixed sensitivity weighting strategy for H∞ controllers, the designer can formulate desired requirements (desired loop shape) using frequency domain weighting functions. The ∞all pass∞ property of the optimal H∞ control laws ensures that the singular value Bode plots will precisely conform to those specified by the weighting functions. However, there is a serious drawback to this property; namely, the resulting standard H∞-PSS always cancels the stable poles of the plant (pole-zero cancellation). It is known that the cancellation of lightly damped poles can lead to poor robust stability and performance. In the case of multi-input H∞ controller, it becomes much more difficult to achieve good robust stability and performance.<br> In this paper, a design of H∞-PSS is proposed to prevent the pole zero cancellation phenomenon and increase the damping of weakly damped modes. The design method consists of applying the bilinear transform to a stable poorly damped nominal plant in order to transform it into a fictitious unstable plant suitable for the standard mixed sensitivity design approach. A combination of additive and multiplicative uncertainty representation was used to achieve the robust stability for a wide range of operating conditions. The PSS designed based on the proposed approach was compared with those based on the standard H∞ approach and the conventional method.<br> Simulation results show that the proposed PSS gives better performance and is more robust than the standard H∞-PSS and the optimally tuned conventional PSS.
収録刊行物
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- 電気学会論文誌B(電力・エネルギー部門誌)
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電気学会論文誌B(電力・エネルギー部門誌) 118 (6), 699-706, 1998
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204603774592
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- NII論文ID
- 130006840486
- 10002876524
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- NII書誌ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 4492038
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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