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Transactive Control of Industrial Pumps with Associated Storage for Demand Response Market Participation in Singapore

Abstract:

In industrial sector, certain demands that are associated with operations of pumps are accompanied by reservoirs with storage capabilities for chemicals or solvents. Consequently, such industries possess inherent demand flexibility that can be utilized. This work proposes the coordinated control of industrial pump loads for participation in Singapore's Demand Response (DR) programme by adjusting the electrical demand for revenue and power grid benefits. A novel Transactive Energy based energy management system (EMS) is proposed for coordinated operation scheduling of such industrial pumps to become responsive to electricity market prices. The optimal scheduling problem here is formulated based on detailed mathematical model of a water distribution system and a constrained linear programming based control technique is proposed. Case studies are performed in MATLAB environment using Singapore's electricity market data and proposed EMS controlling the water distribution system. Results show that the proposed EMS is effective in shifting electrical demand away from peak price periods according to real Singapore market price signals while maintaining operational constraints, which leads to significant reduction in electricity costs. Further, in case of DR activations, significant demand may be reduced during DR target periods and revenue from the DR market participation is found to be lucrative.