PV System for Data Centers Eliminates Batteries
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Solution Overview
Problem
The high cost and complexity of implementing a photovoltaic (PV) system in data centers, particularly due to the need for batteries, increase the overall expense and operational complexity, and contribute to a larger carbon footprint.
Innovation Solution
A PV system that eliminates the need for batteries by using a controller to decouple the IT cluster from the utility power source and couple it to the PV system when the PV panel's output voltage exceeds a threshold, allowing direct drawing of DC power from the PV panel, thereby reducing the number of components and managing power efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a PV system with batteries is implemented to reduce dependency on AC mains, then renewable energy usage increases, but system complexity and cost increase significantly
Solution Approach 1:
The patent extracts and removes the battery component from the traditional PV system architecture. By eliminating the energy storage element, the system achieves renewable energy usage without the complexity and cost associated with battery maintenance, charging/discharging management, and physical space requirements.
Solution Approach 2:
The patent adopts a simplified PV system that uses inexpensive, non-storage components. Rather than investing in expensive, long-lifecycle batteries with complex management systems, the solution uses simple, replaceable PV panels and controllers that can be easily installed and removed without long-term commitment to expensive infrastructure.
2Duration of action of stationary object
If batteries are added to store solar energy for nighttime use, then energy availability increases, but overall operating cost increases
Solution Approach 1:
The patent removes the battery subsystem entirely from the PV system. This elimination deletes all costs associated with battery purchase, installation, maintenance, replacement, and disposal, while still providing energy availability during daytime operating hours when PV panels are generating power.
Solution Approach 2:
The PV system is designed to be self-sufficient during daytime operation without requiring external energy storage. The system generates and consumes energy in real-time, eliminating the need for expensive energy storage infrastructure while maintaining operational autonomy during daylight hours.
3Adaptability or versatility
If a complete PV system with inverter/charger and batteries is installed, then power independence from utility increases, but implementation cost increases
Solution Approach 1:
The patent extracts the expensive inverter/charger and battery components from the system, leaving only the essential PV panel and basic controller. This minimal configuration achieves practical power independence for daytime operations at a fraction of the cost of complete off-grid systems.
Solution Approach 2:
The patent employs inexpensive PV components that can be easily installed and replaced. Rather than investing in expensive, complex power independence infrastructure with long payback periods, the solution uses affordable, simple components that provide immediate, practical independence for daytime energy needs.
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 solution reduces the Total Cost of Ownership (TCO) and complexity by eliminating battery requirements, while efficiently managing power for IT clusters under varying conditions, promoting higher renewable energy usage and reducing the carbon footprint.
Implementation Method 1
the PV panel 101 converts solar radiation into electrical direct current (DC) power
Data Source
AI summary
According to one embodiment, an Information Technology (IT) power system for a data center. The system includes a utility power source, an IT cluster that includes a several pieces of IT equipment. The cluster is coupled to the source and is configured to draw power from the source and provide the drawn power to the pieces of IT equipment. The system also includes a photovoltaic (PV) system that includes a PV panel that is arranged to convert solar radiation into direct current (DC) power. It also may include a voltage sensor and a controller that are configured to decouple the cluster from the source and to couple the cluster to the PV system such that the cluster draws the DC power directly from the PV panel when the output voltage of the PV panel sensed by the voltage sensor exceeds a threshold value.