Loss Calculation Device for Power Distribution Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In power distribution systems, it is challenging to accurately measure and grasp the power loss in each distribution facility due to the difficulty in obtaining precise electric current values, leading to inefficiencies as distribution capacity decreases.
Innovation Solution
A loss calculating device and method that calculates load current and power loss in each distribution facility based on sending voltage and load information, using smart meters and a network-connected system to manage and analyze electrical connections and facility data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If distribution facility capacity is reduced to match decreasing load demand, then operational efficiency improves, but power loss increases
Solution Approach 1:
The patent segments the distribution system into multiple facilities (transformers, lines, etc.) and calculates power loss for each segment individually. This enables precise identification of which facilities contribute most to power loss, allowing targeted optimization rather than blanket capacity reduction, thus improving operational efficiency without excessive power loss.
Solution Approach 2:
The patent calculates load current and power loss parameters for each distribution facility based on actual load conditions. By continuously monitoring and adjusting facility capacity parameters according to real-time load changes, the system optimizes operational efficiency while minimizing power loss through dynamic parameter adaptation.
2Device complexity
If traditional measurement methods are used for electric current, then system simplicity is maintained, but measurement precision deteriorates
Solution Approach 1:
The patent introduces a loss calculation device as an intermediary that computes power loss based on electrical connection information and load data from smart meters. This intermediary approach enables precise power loss measurement without requiring direct complex current measurements at every facility, balancing measurement precision with system simplicity.
Solution Approach 2:
Instead of directly measuring electric current at each distribution facility, the patent uses smart meters to copy load information from consumer premises and derives current values through calculation. This indirect copying method achieves sufficient measurement precision while avoiding the complexity of direct current measurement infrastructure.
3Measurement precision
If detailed power loss calculation for each facility is implemented, then power loss monitoring accuracy improves, but system complexity increases
Solution Approach 1:
The loss calculation device performs multiple functions: it calculates load current, computes power loss for each facility, identifies facilities exceeding loss thresholds, and generates management information. This multi-functionality achieves detailed power loss monitoring accuracy without proportionally increasing system complexity, as a single device handles all calculation tasks.
Solution Approach 2:
The system uses electrical connection information and load data that already exist in the distribution system, making the calculation device self-sufficient with available data. By leveraging existing smart meter readings and connection topology information, the device achieves accurate power loss monitoring without requiring additional complex measurement infrastructure.
Data Source
AI summary
A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an electrical circuit including the power source facility, the distribution facilities, and the power consumption facilities connected to one another to form the electrical circuit. A second calculating unit calculates the amount of power loss in each distribution facility based on the calculated load current of each distribution facility.