US 12,740,026 B2Granted

Intelligent cooling management controller

AssigneeOvh

InventorsMaxime Agusti, Mohamad Hnayno, Ali Chehade

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Abstract

The present invention describes an intelligent power management system designed for optimizing energy use in data center server assemblies. It can use various coolants, like liquid or gas, and adjusts to changing processor loads. The system integrates a coolant loop, a variable flow coolant circulator, and an advanced control unit. The advanced control unit dynamically regulates coolant flow, server temperature, and total power consumption, and receives temperature data from each server's baseboard management controller and power data from a power distribution unit. The advanced control unit computes the best coolant flow rate to minimize total power use while keeping server temperature below a safety limit, and uses either a static or a machine learning model with reinforcement learning and a reward mechanism to enhance real-time calculations and overall efficiency over time.

A power management system for optimizing the total power consumption level of one or more rack-mounted server units, the power management system comprising:

a configuration in which each of the server units contains at least one electronic processing assembly, a cooling block configured to provide liquid cooling to the server unit, a power supply unit (PSU) configured to receive electric power for operation of the server unit, and a baseboard management controller (BMC) configured to monitor temperature level data of the server unit;
a coolant distribution loop configured to convey coolant supplied to the cooling blocks of the server units and convey heated coolant received from the cooling blocks of the server units;
a coolant circulation flow device configured to adjust a flow rate of the coolant supplied to the cooling blocks via the coolant distribution loop;
a power distribution unit (PDU), communicably-coupled to each of the PSUs of the server units, and configured to measure power consumption of each of the server units;
a power control unit communicably-coupled to the coolant circulation flow device, the PDU, and the BMCs of the server units, the power control unit configured to:
receive temperature data from the corresponding BMCs of the server units via a management interface which enables communication between the power control unit and the BMCs of the server units;
receive power consumption data of the server units from the PDU;
calculate an optimal flow rate for the coolant circulation flow device, based on the received temperature and power consumption data, to optimize the total power consumption level of the server units to ensure that the temperature of each of the server units remains below a predetermined temperature safety limit;
and
communicate control instructions to the coolant circulation flow device to adjust the flow rate of the coolant conveyed in the coolant distribution loop in accordance with the calculated optimal flow rate.

7 more elements

Facts

Application

19/042,685Filed 31 Jan 2025

Priority

EP 2430517431 Jan 2024

Published

US 2025/0248009 A131 Jul 2025

Granted

15 Sep 2026

Term ends

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Classification12 codes

G06F 1/206
Cooling means: comprising thermal management
H05K 7/20836
For server racks or cabinets; for data centers, e.g. 19-inch computer racks: thermal management, e.g. server temperature control
G06F 1/28
Power supply means, e.g. regulation thereof: supervision thereof, e.g. detecting power-supply failure by out of limits supervision
G06F 1/3206
Power management, i.e. event-based initiation of a power-saving mode: monitoring of events, devices or parameters that trigger a change in power…

Abstract

Claims10