Optimal Pump Scheduling by Non-Linear Programming for Large Scale Water Transmission System

摘要

Large scale potable water transmission system considered in this paper is the Toronto Water System (TWS), one of the largest potable water supply networks in North America. The main objective of the ongoing Transmission Operations Optimizer (TOO) project consists in developing an advanced tool for providing such pumping schedules for 153 pumps, that all quantitative requirements with respect to the system operation are met, while the energy costs are minimized. We describe here, in general, the concept of TOO system, and, in detail, a large-scale non-linear, so-called Full Model (FM), based on system of hydraulic equations, which is solved over 24-hour horizon and delivers optimal aggregated flows and pressure gains for all pumping stations.