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Real-time Power Balance and Optimized Dispatching Control System
Applications

The Real-time Power Balance and Optimized Dispatching Control System is a support system for real-time generation dispatching operations under electricity spot market conditions. As a highly integrated and specialized system for professional dispatching operations, it enables horizontal data integration among various specialized application systems within grid dispatching. It features dispatch plan modification management and proactive power balance dispatching functions adapted to electricity spot market operations. Key functions include dispatch plan modification management, security checks for plan modifications, plan review, basic data management and monitoring, real-time power balance, unified grid-provincial peak shaving, and information aggregation and dissemination.

System Composition


Functional Features
  • Smart Early Warning
    Performs rolling calculations of future-state grid security margins, provides alarms for weak links in the grid, power balance deviations, and generation unit adjustment deviations. It also offers auxiliary decision-making for generation plan adjustments in cases of transmission section limit violations and N-1 contingency violations.
  • Proactive Operation
    Based on ultra-short-term busbar load forecast data and considering various constraints such as system balance, unit operation, grid security, and reserve capacity requirements, this function automatically and periodically formulates generation dispatch plans for various types of units for a future period. It follows preset deviation allocation principles, enhancing the control of large power grids and the ability to optimize resource allocation, transitioning real-time power balance from being primarily manual to smart and proactive.
  • Grid-Provincial Coordination
    Enables real-time optimized dispatching for unified peak shaving between the main grid and provincial grids, with the goal of maximizing renewable energy consumption.
  • Collaborative Integration
    Achieves horizontal integration and connection of model data, enabling business and process synergy between this system and other related systems in the dispatching domain.
  • Graphical Operation
    Features a graphical editing module for dispatch plans, automatic curve smoothing, and static security checks for the entire duration of any modifications.
  • Security Check
    Performs power flow checks on large, complex AC/DC hybrid grids after model data integration. It conducts power flow calculation and analysis on the operating section at the time of a plan modification, enabling AC/DC power flow checks for the main grid model, security checks on critical sections, N-1 contingency scanning for critical sections, and rolling future-state security checks to determine if any limit violations or overloads will occur.
  • Market Boundary
    The day-ahead dispatch plan, after passing security checks, serves as the boundary condition for the electricity spot market.
  • Real-Time Power Balance and Optimized Dispatching Control System
    Enables modification of power transmission/reception plans, review of plan modifications, and data exchange between dispatching centers, and between dispatching centers and power plants or watershed cascade dispatching centers.