# US 2014/0156100 A1 · Data center power conversion efficiency management > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0156100 A1 - Document ID: US20140156100A1 - Status: Published application - Kind: A1 - Application number: 14/175,510 - Filed: 2014-02-07 - Published: 2014-06-05 - Earliest claimed: 2010-09-09 - Assignees: International Business Machines Corporation - Applicants: International Business Machines Corporation - Inventors: Wael R. El-Essawy; Karthick Rajamani; Juan C. Rubio - Web page: https://patentgrep.com/patent/US20140156100A1 ## CPC - G05F 1/66: Regulating electric power - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks - H05K 7/1492: {having electrical distribution arrangements, e.g. power supply or data communications} - H05K 7/1498: {Resource management, Optimisation arrangements, e.g. configuration, identification, tracking, physical location (thermal management H05K7/20836)} - Y04S 40/18: Network protocols supporting networked applications, e.g. including control of end-device applications over a network - G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS ## Abstract A data center energy management (DCEM) server configures a power supply in the data center. The DCEM server sums input alternating current (AC) power of the power supply to a total AC power of the data center, wherein the total AC power of the data center is a sum of AC power of a plurality of power supplies. The DCEM server sums output direct current (DC) power of the power supply to a total DC power of the data center and reports a ratio of total AC power to total DC power as data center power conversion efficiency. The DCEM server sets a preset power supply efficiency threshold. The DCEM server determines that a real-time power efficiency level is below the power supply efficiency threshold. The DCEM server, responsive to a determination that real-time power efficiency level is below the power supply efficiency threshold, may remedy the power supply. ## Claims ### Claim 1 A computer implemented method for reporting power conversion efficiency information, the method comprising: receiving, by a computer, a query for real-time power supply efficiency; and responsive to receiving the query, reporting the real-time power supply efficiency to a source for the query, wherein the query for real-time power supply efficiency is a query for the real-time power supply efficiency for a plurality of power supplies; and increasing power efficiency among a plurality of power supply units of a data center in response reporting the real-time power supply efficiency to the source for the query. ### Claim 2 (depends on 1) The computer implemented method of claim 1, further comprising: querying, by information technology equipment, each power supply unit for at least one selected from the group consisting of input current, input voltage, output current, output voltage; and calculating, by information technology equipment, for each power supply the power supply efficiency. ### Claim 3 (depends on 1) The computer implemented method of claim 1, further comprising: measuring, by information technology equipment, each power supply unit for at least one selected from the group consisting of input current, input voltage, output current, output voltage; and calculating, by information technology equipment, for each power supply the power supply efficiency. ### Claim 4 (depends on 1) The computer implemented method of claim 1, further comprising: receiving alternating current at inputs; and distributing alternating current to a plurality of power supplies. ### Claim 5 (depends on 1) The computer implemented method of claim 1, further comprising: receiving direct current at an input; and providing an information technology function. ### Claim 6 (depends on 5) The computer implemented method of claim 5, further comprising: reporting the real-time power supply efficiency, reporting, by a data center energy management server, a ratio of total alternating current (AC) power to total direct current (DC) power as data center power conversion efficiency, wherein the ratio of total AC power to total DC power is based on information from a plurality of power supply units. ### Claim 7 (depends on 4) The computer implemented method of claim 4, further comprising: querying each power supply of the plurality of power supplies for at least one selected from the group consisting of input current, input voltage, output current, output voltage; and calculating for each power supply the power supply efficiency. ### Claim 8 (depends on 4) The computer implemented method of claim 4, further comprising: measuring each power supply unit for at least one selected from the group consisting of input current, input voltage, output current, output voltage; and calculating for each power supply the power supply efficiency.