Virtual Power Plant Clustering for Cross-Zone Grid Control
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Solution Overview
Problem
Existing electrical distribution grid management systems, which categorize grids into rigid control zones, struggle to effectively provide ancillary services across different zones, limiting the grid's controllability and ability to maintain power supply quality.
Innovation Solution
A method is proposed that involves determining key variables describing the grid state, combining multiple electrical installations into a virtual power plant, establishing a control area within the grid, and designating a main control unit to manage the virtual power plant, thereby enhancing the grid's controllability and ability to render ancillary services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If rigid control zones are used for grid management, then system management is simplified, but ancillary services cannot be provided across different control zones
Solution Approach 1:
The patent segments the electrical distribution grid into virtual control areas based on real-time grid state variables rather than rigid geographical zones. This allows dynamic formation of control groups that can be optimized for specific ancillary service tasks while maintaining manageable system complexity through modular virtual structures.
Solution Approach 2:
The patent implements dynamic reconfiguration of control areas based on real-time grid state variables. The virtual power plants and control areas can be formed, dissolved, or reorganized dynamically to match changing grid conditions, enabling flexible provision of ancillary services across different zones while adapting to system needs.
2Adaptability or versatility
If multiple electrical installations are combined into a virtual power plant, then controllability and ancillary service rendering improve, but system complexity increases
Solution Approach 1:
The patent combines multiple electrical installations into virtual power plants that operate as unified controllable entities. By merging control functions and coordinating multiple installations under a common virtual structure, the system achieves improved controllability and ancillary service capabilities while managing complexity through standardized virtual plant templates.
Solution Approach 2:
The virtual power plant structure serves multiple functions simultaneously - it acts as a control area, a coordination entity for ancillary services, and a manageable organizational unit. This multi-functionality reduces the need for separate specialized structures, thereby improving capabilities without proportionally increasing system complexity.
3Reliability
If dynamic clustering of electrical installations is implemented, then power supply quality and grid controllability improve, but measurement and control complexity increases
Solution Approach 1:
The patent implements continuous monitoring of grid state variables and uses this feedback to dynamically adjust the formation and control of virtual power plants. Real-time measurement of grid conditions enables adaptive reconfiguration that maintains power supply quality while automating the complexity of monitoring and control decisions through closed-loop feedback mechanisms.
Data Source
AI summary
A method for controlling an electrical distribution grid, comprising the following steps: determining at least one variable which describes a state of the electrical distribution grid; combining a plurality of electrical installations, in particular a plurality of regenerative generating units, of the electrical distribution grid to form a virtual power plant, in particular taking into consideration the variable; establishing a control area within the electrical distribution grid for the virtual power plant; establishing a control unit of an electrical installation of the virtual power plant as main control unit; controlling the control area using the main control unit of the virtual power plant.