An auxiliary LQG/LTR robust controller design for cogeneration plants
- Seoul National Univ. (Korea, Republic of). Dept. of Electrical Engineering
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Electrical Engineering
A robust controller is designed to reduce the sensitivity of the frequency and the extraction steam pressure to the disturbance imposed on a cogeneration plant by using the LQG/LTR methodology. Natural frequency of generator swing is analyzed to determine the frequency band of the disturbance due to the variation in load and utilized as a design specification for the LQG/LTR controller. The singular-value Bode diagram of the sensitivity transfer function matrix is shaped to reduce disturbance effects on the power system frequency and steam pressure according to the design specification. The high order LQG/LTR controller is reduced to a low order controller and implemented in a nonlinear cogeneration plant model. Simulation shows the performance of the LQG/LTR controller in disturbance rejection.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 276827
- Report Number(s):
- CONF-960111--
- Journal Information:
- IEEE Transactions on Energy Conversion, Journal Name: IEEE Transactions on Energy Conversion Journal Issue: 2 Vol. 11; ISSN 0885-8969; ISSN ITCNE4
- Country of Publication:
- United States
- Language:
- English
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