Abstract

A sub-optimal control scheme is proposed to regulate pressures throughout the Natural Gas Grid. In the scheme, the pressures at certain optimally chosen grid locations are dynamically controlled to achieve good overall regulation throughout the grid. Acknowledging the random nature of the load disturbances, the design of the regulators is based on stochastic control theory. To assess the performance of the scheme, experiments are performed on a lumped-parameter model of the grid system. Results suggest that introduction of the scheme, could substantially improve on the present method of pressure regulation.

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