| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 |
15권 2호, p.1375 |
| 발표분야 |
공정시스템 |
| 제목 |
Parallel cascade control strategy for an unstable continuous bioreactor |
| 초록 |
Parallel cascade controllers are used in the chemical and bioprocess industries to improve the dynamic performance of a control system in the presence of disturbances. In the present work, parallel cascade control strategy is applied to control a continuous bioreactor for effective control of biomass concentration using dilution rate as the manipulate variable. In order to take into account the effect of time delay that occurs usually in the primary loop of the parallel cascade control, a time delay compensator has been incorporated in the primary loop of the parallel cascade control system. The primary controller is designed using direct synthesis method. The proposed method provides robust control performances. Significant improvements in the closed loop performances are obtained with the parallel cascade control scheme over that of conventional simple feedback control system. Among parallel cascade control schemes, delay compensated scheme provides improved performances in an unstable bioreactor. This work was supported by BK21, funded by the Korea government (MEST) (KRF-2009-0076129) and funded by Seoul R&BD Program (CS070160). |
| 저자 |
S. Uma1, A. Seshagiri Rao2, 김민한2, 김용수2, 유창규2
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| 소속 |
1인도 NIT대, 2경희대 |
| 키워드 |
Parallel cascade control; bioreactor; Smith predictor; time delay; unstable process
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| E-Mail |
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| 원문파일 |
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