UPS Management via Utility Power Routing
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Solution Overview
Problem
Data centers face challenges with power disruptions, inefficiencies in power distribution, and high energy costs due to fluctuations in utility power and peak demand charges, as well as the limited detection of anomalies in uninterruptible power supply (UPS) systems until a failure occurs, leading to potential losses and increased expenses.
Innovation Solution
Implementing a control system that manages the discharge and recharge of UPS batteries by proactively routing power from the utility source to the UPS during available times, allowing for proactive detection of anomalies, optimizing power consumption, and coordinating recharging with lower cost periods to reduce peak demand and energy costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UPS batteries are kept continuously charged during peak pricing periods, then power reliability is maintained, but energy costs increase due to peak demand charges
Solution Approach 1:
The system performs preliminary charging of UPS batteries during off-peak hours when electricity rates are lower, preparing stored energy in advance to avoid drawing power during expensive peak periods. This time-shifting strategy maintains power reliability while reducing energy costs by anticipating and preparing for future power needs during low-cost periods.
2Ease of operation
If UPS systems operate continuously without proactive testing, then operational simplicity is maintained, but anomaly detection capability deteriorates
Solution Approach 1:
The system implements periodic discharge cycles of UPS batteries during scheduled maintenance windows, transforming continuous passive operation into periodic active testing. This approach enables automatic anomaly detection through controlled discharge-recharge cycles while maintaining operational simplicity through automated scheduling and monitoring, resolving the contradiction between ease of operation and detection capability.
3Ease of operation
If power is drawn from utility during all periods, then operational simplicity is maintained, but power distribution efficiency deteriorates due to peak demand charges
Solution Approach 1:
The system incorporates real-time monitoring of utility power conditions, battery charge levels, and cost signals to dynamically control power flow between utility source and UPS systems. This feedback mechanism automatically optimizes power distribution by switching between utility power and battery power based on current conditions, improving power distribution efficiency while maintaining operational simplicity through automated decision-making.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances power reliability, extends battery life, reduces energy costs by aligning power usage with lower pricing periods, and minimizes losses by identifying and addressing UPS anomalies before they cause disruptions.
Implementation Method 1
a battery, which can provide an uninterruptible supply of power for a period of time
Data Source
AI summary
A data center includes an electrical load, a connection to a utility power source, a uninterruptible power supply (UPS), a switching device and a control system. The control system is configured to cause the switching device to discontinue routing electrical power to the electrical loads via the UPS for a given period of time while electrical power is still available to be fed to the electrical loads from the utility power source. Subsequent to the given period of time, the control system cause the switching device to resume routing electrical power to the electrical loads via the UPS.