Google Inc.

Abb Research Ltd.

Abb Schweiz Ag

Abb Technology Ag

Jyoti Sastry

Christopher Gregory Malone

Varun Sakalkar

James Kennedy

Eduardo Lao

Ankit Somani

Anand Ramesh

Pascal C Kam

James Schmalzried

Arunava Majumdar

Ryan Thomas Davis

Ronald Scott Collyer

Gregory E Leyh

Hongrae Kim

Sangsun Kim

Tomas Lars Jonsson

Jiuping Pan

Frans Dijkhuizen

Jun Li

Jing Xu

Jiaqi Liang

Alireza Nami

Waqas Mahmood Arshad

Sara Ahmed

Panagiotis Bakas

Antonis Marinopoulos

Jouko Niiranen

Michal Lazarczyk

Radoslaw Nalepa

Dimitrios Doukas

A data center power system includes an electrical power conductor that includes a live conductor surface and is configured to carry electrical power from a power source through a human-occupiable workspace of a data center. The live conductor surface includes a rail configured to mount to a floor of the data center. The data power system further includes a grounded conductor positioned in the human-occupiable workspace apart from the electrical power conductor; a first electrical connector configured to mount to a data center rack that supports a plurality of electronic devices and moveable to electrically contact the live conductor surface of the electrical power conductor; and a second electrical conductor positioned on the rack and configured to electrically contact the grounded conductor.

Powering electronic devices in a data center

A data center power system includes an electrical power conductor that includes a live conductor surface and is configured to carry direct current (DC) power from a power source through a human-occupiable workspace of a data center; a grounded conductor positioned in the human-occupiable workspace apart from the electrical power conductor; a first electrical connector configured to mount to a data center rack that supports a plurality of electronic devices, the first electrical connector moveable to electrically contact the live conductor surface of the electrical power conductor; and a second electrical conductor positioned on the rack and configured to electrically contact the grounded conductor.

This specification describes a power distribution system comprising a first section that receives power from a first source. The power at the first section is adjusted by a rectifier coupled to a power bus of the first section. The system includes a second section that is separate from the first section and that receives power from a second source. The power at the second section is adjusted by a rectifier coupled to a power bus of the second distribution section. The system includes a swing rectifier connected to each of the first and second sections. The swing rectifier is configured to provide power to the first power bus and to the second power bus and to dynamically adjust the power capacity of the first section that is available to computing loads, and to dynamically adjust the power capacity of the second section that is available to computing loads.

Modular direct current (DC) architectures

Methods, systems, and apparatus for circuit breakers with integrated safety, control, monitoring, and protection features. In one aspect, a circuit breaker includes, an input and an output, a switch coupled between the input and the output, a sensor configured to measure the current flowing from the input to the output, and a control system coupled to the sensor and the switch, wherein the control system is configured to perform operations including comparing a rate of change of the current measured by the sensor to a threshold rate of change of current, determining that the rate of change of the current measured by the sensor exceeds the threshold rate of change of current for at least a predetermined period of time, and as a consequence of determining that the rate of change of current exceeds the threshold rate of change, opening the switch, thereby disconnecting the input from the output.

Circuit breakers with integrated safety, control, monitoring, and protection features

This specification describes a power distribution system comprising a first section that receives power from a first source. The power received from the first source is adjusted by a first rectifier unit coupled to a first power bus of the first section. The system also comprises a second section that is separate from the first section and that receives power from a second source. The power received from the second source is adjusted by a second rectifier unit coupled to a second power bus of the second distribution section. The system includes a swing rectifier connected to the first section and connected to the second section. The swing rectifier is configured to provide power to the first power bus and to the second power bus and to dynamically adjust the power capacity of the first section that is available to computing loads, and to dynamically adjust the power capacity of the second section that is available to computing loads.

A data center power connector includes a conduit that defines an inner volume; and at least one conductor that extends through the inner volume of the conduit and is configured to carry electrical power from a source of main power of a data center to at least one electronic device mounted in a rack deployed in a human-occupiable workspace of the data center and data between the at least one electronic device and a data center control system.

A data center power system includes an enclosure that defines an inner volume; a first direct current (DC) power bus mounted in the inner volume and extending externally to electrically couple to a source of main power; a second DC power bus mounted in the inner volume and extending externally to electrically couple to the source of main power; a plurality of transfer switches mounted in the inner volume, each transfer switch electrically coupled to one of the first DC power bus or the second DC power bus; and a plurality of DC power conductors that are electrically coupled to a pair of transfer switches that includes one transfer switch electrically coupled to the first DC power bus and one transfer switch electrically coupled to the second DC power bus; each DC power conductor configured to electrically couple to a data center rack that supports a plurality of electronic devices.

Methods, systems, and apparatus for circuit breakers with integrated safety, control, monitoring, and protection features. In one aspect, a circuit breaker includes an input and an output, a switch coupled between the input and output, a communications device configured to communicate on a data communications network, and a control system coupled to the switch and the communications device, wherein the control system is configured to perform operations including opening the switch as a consequence of detecting an overcurrent condition in a circuit downstream from the circuit breaker, opening and closing the switch based on one or more instructions received by the communications device from the data communications network, and monitoring the power consumption of the circuit downstream from the circuit breaker.

In general, one innovative aspect of the subject matter described in this specification can be embodied in a load control system configured to perform load control operations comprising: measuring a voltage on an electrical grid at a plurality of times; determining, for each time of the plurality of times, a difference between a specified normal voltage and the respective measured voltage at that time; summing the differences between the specified normal voltage and the measured voltages to determine a curtailment level; determining whether the curtailment level exceeds a first threshold curtailment level; and in response to determining that the curtailment level exceeds the first threshold curtailment level, adjusting an amount of power drawn by a load.

Load curtailment on an electrical grid

Circuit breaker panels for use in, e.g., residential and light commercial applications. The circuit breaker panels are configured to perform conventional safety functions and are also configured for remote control and monitoring. The circuit breaker panels can be constructed with remote control and monitoring capability, and circuit breaker panels lacking remote control and monitoring capability can be augmented to include remote control and monitoring capability.

Integrated circuit breaker panels

A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating.

Growing community of inventors

Santa Clara, CA, United States of America

Jyoti Sastry