A Hybrid system to optimize the value of imports for hydro systems
This thesis presents a solution methodology to optimize the value of imports for hydro systems by optimally selecting the unit commitment and loading of plants to provide the required System Rotational Energy or System Inertia. The methodology has been developed for use in short-term hydro system...
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| Language: | English |
| Published: |
2009
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| Online Access: | http://hdl.handle.net/2429/15199 |
| Summary: | This thesis presents a solution methodology to optimize the value of imports for hydro
systems by optimally selecting the unit commitment and loading of plants to provide the required
System Rotational Energy or System Inertia. The methodology has been developed for use in
short-term hydro system operations in a deregulated market environment to determine the
optimal electricity import for a predominantly hydroelectric system consisting of plants with
large storage facilities, multiple units and complex hydraulic configurations. The problem is
formulated and solved using a hybrid system consisting of two main components. The first
component consists of an expert system that is used to screen for potential and feasible system
configurations given a set of rules on plant and unit operations. The second component consists
of a Mixed-Integer programming algorithm that maximizes the value of import capability of the
hydro system during low electricity market-price periods. The proposed solution methodology
optimally schedules hydro plants at unit-level for energy and capacity markets in short-term
operations while meeting the System Rotational Energy constraints. The application of the
technique is demonstrated for four large plants in the B.C. Hydro system for a 24-hour time-step
studies for a four-month period in 2002. |
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