New Vista DSS™ Functionalities…

New LT Vista Functionalities…

• Rating Curve Adjustment Factors (RCAF) – tailwater levels and spillway flow are adjusted during times when RCAF is entered.  Used often to correct for ice cover influences.
• DC Tie Line Losses and Outages – DC transmission line losses are considered (based on line loading and valve group configuration), as well as line outage schedules
• LT Scheduling – new LT “schedule file” (*.lts) created to encapsulate all inputs and outputs, and allow users to re-run previous cases.  This facility greatly improves our ability to support users.
• Piecewise linearization – characteristic equations in LP matrix are represented in several segments, rather than a single gradient.  This reduces run times, and avoids sub-optimal solutions
• Multiple Rough Zones – generating units can have any number of rough zones, rather than one internal zone.
• Reservoir Water Balance – evaporation and rainfall on reservoir surface have been added to water balance equation.  Previously, these had to be netted out of the inflow input.
• Constraints – new transmission and discharge constraints allowing the user to define limits on time averages, and a new constraints on plant maximum reserve capabilities
• Allocated and Surplus reserve definitions – a clearer definition of reserve where the user will be able to see which plant contributes to the reserve requirements and where the reserve surpluses can be found within a given schedule.

New ST Vista Functionalities…

• Constraints
• Dynamic transmission constraints – max/min/requested constraint on bus MW (generation, sales or purchases) over blocks of time
• Dynamic discharge constraints (Average-to-average) – block to block relationship
• New constraints on plant maximum reserve capabilities
• Data Refresh – enhanced capability to automatically load data and run the model under different modes
• Allocated and Surplus Reserve
• Piecewise linearization– characteristic equations in LP matrix are represented in several segments, rather than a single gradient.  This reduces run times, and avoids sub-optimal solutions
• Multiple Rough Zones generating units can have any number of rough zones, rather than one internal zone.
• Reservoir Water Balance evaporation and rainfall on reservoir surface have been added to water balance equation.  Previously, these had to be netted out of the inflow input.

New RT Data Access Functionalities…

• Time series data administration – new features to archive and/or remove time series data in dynamic database

New Data Vista Functionalities…

• Static outage definition improved
• Overlay of Static and Dynamic Outages – static outages defined in Data Vista can be augmented by the overlay of dynamic outages available through real-time data access

New Development Environment and Third Party Updates…

• New version of C++ compiler – Microsoft Visual Studio 2008, replaces obsolete C++ compiler – Microsoft Visual C++ V6
• New version of RogueWave SourcePro C++ –  11.0 , for support of Microsoft Visual Studio 2008 and Oracle 11g