Optimal Control of a DC Transmission System

摘要

A new control scheme based on optimal control theory is proposed for dc power systems. Systematic methods are presented for computing the optimal and suboptimal feedback controllers. Specific suboptimal controllers are considered in detail and compared with the optimal control, and it is shown that use of local feedback measurements is possible with negligible loss of dynamic performance. A detailed hybrid computer simulation of the proposed EPRI-Con. Ed. 100MW dc link was used to evaluate the performance of the local suboptimal control scheme. Results from the simulation verify the excellent performance of the control during large disturbances to the system and during steady-state operation.