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1994 Controller Design for Vapor Temperatures of OTEC Plant Based on Reduced Order Model
An appropriate control strategy for an ocean thermal energy conversion (OTEC) plant is required to attain a high efficiency and stability. This paper proposed a controller design for an OTEC plant based on reduced order model. We constructed a reduced model in which the turbine inlet temperature and turbine outlet temperature were controlled by a warm sea water pump and a cold sea water pump respectively. Based on the reduced order model, we designed a controller for the OTEC plant of 1,000 kW. We evaluated the proposed controller by using a detail OTEC plant model which could faithfully represent the actual plant and obtain a satisfactory control performance for vapor temperature control using the proposed controller. The controller will be used effectively to control the electric power of actual OTEC plants of any output size.
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