Wireless Feeder Sensing for Lateral Capacitor Bank Control
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Solution Overview
Problem
In electric power distribution systems, it is challenging to accurately control capacitor banks located on lateral lines due to the limitations of open-loop control methods, which are less precise and more complex compared to closed-loop methods, especially when capacitor banks are installed away from the trunk or feeder lines, such as in densely urban areas.
Innovation Solution
Implementing a system that includes wireless electrical measurement devices to obtain electrical measurements from feeder lines and using a capacitor bank controller to receive these measurements for closed-loop control of the capacitor bank, allowing precise control of electrical characteristics even when the capacitor bank is located on a lateral line, thus accommodating congested areas and urban growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If capacitor bank is installed on lateral line away from feeder trunk, then adaptability to dense urban areas is improved, but control precision deteriorates due to open-loop control limitations
Solution Approach 1:
The patent introduces wireless current sensors as intermediary devices that physically separate the measurement function from the capacitor bank location. These sensors are installed on the feeder trunk where precise measurements can be obtained, while the capacitor bank remains on the lateral line for urban adaptability. The wireless communication acts as an intermediary transmission channel, enabling closed-loop control without physical proximity requirements.
Solution Approach 2:
The system segments the control functions by separating the measurement component (wireless current sensors on feeder trunk) from the compensation component (capacitor bank on lateral line). This segmentation allows each component to be optimally positioned for its specific function, with measurements taken where electrical characteristics are most representative and compensation applied where urban infrastructure constraints require it.
2Measurement precision
If wireless electrical measurement devices are used for remote measurements, then control precision is improved through closed-loop control, but device complexity increases
Solution Approach 1:
The patent replaces traditional wired mechanical connection systems with wireless measurement and communication systems. Instead of physically connecting sensors to the capacitor bank controller through cables, the system uses wireless electrical measurement devices that transmit data through electromagnetic fields, eliminating the need for complex wiring infrastructure while maintaining measurement precision.
Solution Approach 2:
The wireless current sensors are designed to autonomously perform measurements and transmit data without requiring manual intervention or complex configuration. The system automatically receives wireless signals, processes the electrical measurements, and adjusts capacitor bank operation accordingly, reducing the operational complexity despite the added technological components.
Data Source
AI summary
Systems, methods, and devices are provided to control an electrical component of an electric power distribution system with an intelligent electronic device using electrical measurements from a wireless electrical measurement device located away from the electrical component. One such system includes a capacitor bank on a lateral of an electric power distribution system, a first set of one or more wireless electrical measurement devices that obtain one or more electrical measurements of a first feeder of the electric power distribution system, and a capacitor bank controller. The capacitor bank controller may use the one or more electrical measurements of the first feeder to control the capacitor bank on the lateral.