Energy Grid Measurement Location Determination via Simulation
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Solution Overview
Problem
Existing wide-range control methods for energy grids are costly and uncertain, as they require extensive measurement campaigns to determine suitable measurement locations, which may not adequately describe all operating situations, leading to potential inefficiencies and increased complexity.
Innovation Solution
A method that simulates the energy grid to determine a minimum number of measurement locations by identifying nodes that violate the predefined voltage band, allowing for continuous monitoring and reducing unnecessary measurement points, thereby minimizing costs and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement locations are determined by extensive measurement campaigns in the physical energy grid, then measurement precision is improved, but device complexity and costs increase
Solution Approach 1:
The patent creates a digital copy (mathematical model) of the energy grid that replicates the physical system's behavior. This model includes nodes, branches, and controllable devices that mirror the actual grid structure. By performing measurements and simulations in this virtual copy, the patent achieves measurement precision without the complexity and costs of extensive physical measurement campaigns.
Solution Approach 2:
The patent replaces physical measurement infrastructure (mechanical/electrical measurement devices in the field) with computational methods. Instead of deploying extensive measurement equipment in the physical grid, the system uses mathematical models and simulations to determine measurement locations, substituting computational processes for physical measurement systems.
2Reliability
If a large number of measurement locations are installed to monitor all operating situations, then reliability is improved, but device complexity and costs increase
Solution Approach 1:
The patent performs preliminary simulations using the mathematical model to identify which measurement locations are necessary before deploying actual measurement devices. By pre-determining the optimal set of measurement locations through simulation across various operating scenarios, the system ensures reliability without installing unnecessary measurement equipment, thereby reducing device complexity.
Solution Approach 2:
The mathematical model serves multiple functions: it simulates grid behavior, identifies measurement locations, determines control positions, and evaluates operating scenarios. This universal tool replaces the need for separate analysis methods and extensive physical measurement campaigns, achieving reliability while minimizing device complexity.
3Measurement precision
If measurement locations are determined by field trials and measurement campaigns, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent performs all necessary simulations and measurements in advance using the mathematical model before actual grid operation begins. The model pre-identifies optimal measurement locations by simulating various operating scenarios, eliminating the need for time-consuming field trials and measurement campaigns that would otherwise be required to validate measurement location suitability.
Solution Approach 2:
By creating and using a virtual copy of the energy grid, the patent accelerates the measurement location determination process. Simulations in the digital model can be executed rapidly without the logistical constraints of physical field work, significantly reducing the time required compared to traditional measurement campaigns while maintaining measurement precision.
Data Source
AI summary
A method determines measurement locations in an energy grid. In the energy grid, use is made of a controllable device for wide-range voltage control. A model of the energy grid is provided which specifies a voltage distribution within the energy grid by a system of equations and/or a system of inequalities depending on the control position of the controllable device. A simulation for minimizing the number of measurement locations is carried out on the basis of the model, and in that as a result of the simulation a minimum number and the respective position of measurement locations and also the control position of the controllable device are specified in order that the energy grid complies with a predefined voltage band during operation.