Downstream Load Calculation Using Smart Meter Aggregation
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Solution Overview
Problem
Existing methods for calculating downstream load in a distribution network rely on general assumptions about transformer loading, lacking accurate representation of current system loading due to the absence of individual customer data, leading to inaccurate calculations.
Innovation Solution
Utilizing smart meters that communicate power consumption data over Wi-Fi or RF networks, the system aggregates average power readings from customers to calculate downstream load in kilowatts, accounting for line losses and enabling detection of power theft by comparing billable power with actual consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If general assumptions about transformer loading are used to calculate downstream load, then the calculation method is simple, but the accuracy of the downstream load calculation deteriorates
Solution Approach 1:
The patent segments the distribution network into individual customer accounts, each with their own smart meter. Instead of treating the entire downstream load as a single aggregated value based on general assumptions, the system divides it into discrete measurable units (individual customer consumption) that can be accurately summed to determine total downstream load.
Solution Approach 2:
The patent implements a feedback mechanism where smart meters continuously measure actual customer consumption and transmit this data back to the utility company. This real-time feedback replaces static general assumptions with dynamic actual measurements, enabling accurate calculation of downstream load based on current system conditions rather than predetermined averages.
2Measurement precision
If individual customer data from smart meters is collected and processed, then the accuracy of downstream load calculation improves, but the system complexity increases
Solution Approach 1:
The patent introduces smart meters as intermediary devices between customers and the utility company's calculation system. These smart meters perform local measurement and data collection functions, reducing the complexity burden on the central system. The smart meter infrastructure acts as an intermediary layer that handles the complexity of individual customer monitoring while presenting simplified aggregated data to the downstream load calculation process.
Data Source
AI summary
Disclosed are various embodiments for calculating a downstream load in a power distribution network. A power distribution network may comprise smart meters capable of communicating readings describing power consumed by a customer to a monitoring computing device. A downstream load may be determined by the monitoring computing device for a point in the power distribution network using an average power determined for devices downstream from the point in the power distribution network. The average power for the devices downstream may be determined utilizing the readings received from the smart meters.