A loop transfer recovery approach to robust control system design using H-infinity optimization methods
Başlık çevirisi mevcut değil.
- Tez No: 400747
- Danışmanlar: PROF. D. LEWIS MINGORI
- Tez Türü: Doktora
- Konular: Makine Mühendisliği, Mechanical Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1991
- Dil: İngilizce
- Üniversite: University of California Los Angeles
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 154
Özet
Özet yok.
Özet (Çeviri)
It is known that the excellent sensitivity properties of Linear Quadratic optimal controllers are lost when state feedback is replaced by state estimate feedback. One strategy for dealing with this problem is Loop Transfer Recovery (LTR). Various design strategies have been proposed for recovering properties of full state feedback within this framework, the most familiar being that based on LQG theory. More generally, Loop Transfer Recovery may be regarded as a special form of loop sensitivity shaping. This viewpoint suggests alternative design strategies including some which relax the requirement that the estimator or controller be unbiased. These approaches still face the design tradeoffs and limitations inherent in all feedback systems such as those which apply to nonminimum phase plants. The formulation used here, however, suggests different approaches for dealing with these issues, and hence provide far more options for sensitivity shaping. The methods developed in this dissertation make use of the recent results in iK? minimization. Hence, although the recovery problem is formulated in the intuitively appealing frequency domain, the computations are carried out in the time domain where robust algorithms have recently become available. It can be shown for a large class of plants that the computational complexity is equivalent to that of a single Riccati equation as in the LQG Loop Transfer Recovery method, but the Riccati equation involves a sign indefinite term. Furthermore, as the K? cost is allowed to approach °°, one of the methods developed here converge to the LQG Loop Transfer Recovery procedure, thus making this procedure a special case of the new method. The relationship between the quality of the full state feedback, nonminimum phase zero location and direction, and the amount of recovery achievable with these methods is also analyzed. The methods developed in this dissertation are also extended to deal with more general disturbances. This extension provides a systematic procedure to deal with parameter uncertainties. This has the important consequence that both unstructured and structured uncertainties can be considered within the same framework.
Benzer Tezler
- H&-robust optimal kontrol tekniğinin kullanılması ile T 700 turbo motorunun güç türbini hızının kontrolü
Power turbine speed control of the GE-T700 turbo engine using the H -robust optimal control technique
CÜNEYT YILMAZ
- Sığ kuyu toprak kaynaklı ısı değiştiricilerin tasarımında mevsimlere bağlı atmosferik koşulların etkisi
Effects of seasonal atmospheric conditions on the design of shallow ground-source heat exchangers
FERHAT CAN KOÇAK
Yüksek Lisans
Türkçe
2024
Enerjiİstanbul Teknik ÜniversitesiEnerji Bilim ve Teknoloji Ana Bilim Dalı
DR. ÖĞR. ÜYESİ SEVAN KARABETOĞLU
- Robust control of a highly maneuverable aircraft
Yüksek manevra yetenekli bir uçağın dayanıklı (gürbüz) denetimi
MÜGE ERGÜN
Yüksek Lisans
İngilizce
1998
Uçak MühendisliğiOrta Doğu Teknik ÜniversitesiHavacılık Mühendisliği Ana Bilim Dalı
DOÇ. DR. OZAN TEKİNALP
- Yeni bir hata değişik delta ağ maddeli arttırılmış delta ağı (ADA)
Başlık çevirisi yok
M.EBRU KOLUSAYIN
Yüksek Lisans
Türkçe
1998
Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrolİstanbul Teknik ÜniversitesiKontrol ve Bilgisayar Mühendisliği Ana Bilim Dalı
DOÇ. DR. MEHMET BÜLENT ÖRENCİK