Smart Grid Feeder Curtailment Priority Control
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Solution Overview
Problem
Current electrical regulation methods in smart grids lead to unequal participation of devices and subscribers in curtailment, causing inefficient energy management, comfort issues, and a rebound effect due to random and frequent power curtailments and restorations.
Innovation Solution
A method that prioritizes electrical feeders based on their historical participation in curtailment, scheduling curtailments and restorations to balance participation and minimize disruptions, using data from current and home sensors to optimize curtailment and restore power gradually, avoiding sudden spikes in consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If curtailment settings are applied to regulate consumption during peak demand, then power consumption is reduced to match production capacity, but unequal participation of devices and subscribers occurs leading to inefficient energy management
Solution Approach 1:
The system performs preliminary actions by consulting the history of curtailments applied to feeders before implementing new curtailment settings. This allows the management electronics to identify which feeders have participated least in previous curtailments and prioritize them for upcoming curtailments, ensuring equal participation across all feeders over time.
Solution Approach 2:
The system uses feedback from the history of curtailments to dynamically adjust curtailment priorities. By monitoring which feeders have been curtailed and which have not, the system continuously adapts its curtailment strategy to achieve balanced participation, transforming the unequal curtailment problem into an optimized energy management solution.
2Power
If management electronics repeatedly curtail the same devices and subscribers, then consumption is regulated during peak demand, but participation in electrical regulation becomes unequal
Solution Approach 1:
Before applying curtailment settings, the management electronics consult the history of curtailments to determine which feeders have participated least in previous curtailments. This preliminary assessment ensures that curtailment is distributed equally across all feeders rather than repeatedly affecting the same devices.
Solution Approach 2:
The system dynamically adjusts curtailment priorities based on historical data. Feeders that have participated less in curtailment are assigned higher priority for upcoming curtailments, creating a dynamic and adaptive curtailment strategy that ensures equal participation over time.
3Power
If devices are curtailed during critical operation phases, then power consumption is reduced, but proper operation of the device is compromised
Solution Approach 1:
The system performs preliminary assessment by consulting curtailment history and determining participation levels before applying curtailment. This allows identification of feeders supplying devices that can tolerate curtailment without compromising proper operation, such as those not in critical operation phases.
Solution Approach 2:
The system applies different curtailment strategies to different feeders based on their specific characteristics and the devices they supply. Feeders supplying devices in critical operation phases are prioritized for protection, while feeders supplying devices that can tolerate curtailment are prioritized for load reduction.
4Power
If heating devices are curtailed when ambient temperature is low, then power consumption is reduced, but subscriber comfort is compromised
Solution Approach 1:
The system consults curtailment history and environmental conditions before applying curtailment settings. By examining ambient temperature data and curtailment patterns, the system identifies feeders supplying heating devices in low-temperature environments and protects them from curtailment to maintain subscriber comfort.
Solution Approach 2:
The system applies differentiated curtailment strategies based on local conditions. Feeders supplying heating devices in cold environments are protected from curtailment, while feeders in other locations or supplying different types of devices are prioritized for load reduction.
5Reliability
If curtailed devices and subscribers are restored to full power simultaneously, then normal operation is resumed, but a spike consumption phenomenon occurs creating frequency collapse
Solution Approach 1:
The system restores curtailed feeders in a periodic, staggered manner rather than simultaneously. By distributing the restoration process over time and prioritizing feeders based on their curtailment history, the system avoids sudden power demand spikes that could cause frequency collapse.
Solution Approach 2:
The system performs preliminary planning of the restoration sequence based on curtailment history. Feeders that were curtailed are identified and restored in a predetermined order, ensuring that restoration occurs gradually and controlledly to prevent spike consumption phenomena.
6Power
If a large number of devices are curtailed and restored simultaneously, then significant consumption reduction is achieved during curtailment, but a new abrupt collapse in frequency occurs during restoration
Solution Approach 1:
The system implements periodic, staggered restoration of curtailed feeders rather than simultaneous restoration. This distributes the power demand increase over time, preventing abrupt frequency collapse while maintaining the effectiveness of consumption reduction during curtailment periods.
Solution Approach 2:
The system dynamically adjusts the restoration process based on grid conditions and curtailment history. By monitoring frequency stability and restoring feeders in a controlled, adaptive manner, the system maintains frequency stability while achieving significant consumption reduction.
Data Source
AI summary
A method of monitoring an electrical installation comprising electrical feeders for powering devices in a regulated manner. The method comprises the steps of: consultation of a history of curtailments carried out on the feeders; as a function of the history consulted, determination for each of the feeders of a level of participation in a general electrical regulation of the installation; association of a curtailment priority rank with each of the participation levels determined for each of the feeders; and following the reception of a setting for general electrical regulation of the installation, curtailment of the feeders in order of priority rank.