72results about "Hot plugging-unplugging power/load" patented technology

A method operable by a controller of a static transfer switch (STS) is provided. The STS includes first and second inputs selectively coupled with first and second power sources via first and second circuit breakers, respectively, an output coupled with a load, first and second bypass breakers selectively coupling the first and second inputs, respectively, with the output, at least one removable power stage module including first and second power stages configured to conduct electrical power when active, first and second contactors selectively coupling the first and second inputs with the first and second power stages, respectively, and a load switch selectively coupling the first and second power stages with the output. The method includes modifying an operating state of the first and second contactors and the first and second power stages to implement a bypass operation and an un-bypass operation of the STS in response to a trigger condition.

Techniques and apparatus for swapping a primary power source (e.g., a main battery) while using a secondary power source (e.g., a backup battery or a supercapacitor) to power a portable device. One example integrated circuit (IC) for power management generally includes a first power supply node; a second power supply node; a first port for coupling to a primary power source; a first switch coupled between the first power supply node and the first port; a second port for coupling to a secondary power source; a second switch coupled between the first power supply node and the second port; and a third switch coupled between the first and second power supply nodes. For certain aspects, the IC also includes a third power supply node, a voltage regulator coupled between the first and third power supply nodes, and a fourth switch coupled between the second and third power supply nodes.

Method, modules and a system formed by connecting the modules for controlling payloads are disclosed. An activation signal is propagated in the system from a module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to external power source such as AC power. The system may use remote powering wherein few or all of the modules are powered from the same power source connected to the system in a single point. The power may be carried over dedicated wires or concurrently with the conductors carrying the activation signal. The payload may be a visual or an audible signaling device, and can be integrated within a module or external to it. The payload may be powered by a module or using a dedicated power source, and can involve randomness associated with its activation such as the delay, payload control or payload activation.

Techniques and apparatus for swapping a primary power source (e.g., a main battery) while using a secondary power source (e.g., a backup battery or a supercapacitor) to power a portable device. One example integrated circuit (IC) for power management generally includes a first power supply node; a second power supply node; a first port for coupling to a primary power source; a first switch coupled between the first power supply node and the first port; a second port for coupling to a secondary power source; a second switch coupled between the first power supply node and the second port; and a third switch coupled between the first and second power supply nodes. For certain aspects, the IC also includes a third power supply node, a voltage regulator coupled between the first and third power supply nodes, and a fourth switch coupled between the second and third power supply nodes.

The invention relates to the technical field of power supplies, and discloses a power distribution module capable of being maintained without power interruption and a power distribution system. The power distribution module comprises a cabinet, a commercial power horizontal bus unit, a power distribution bus unit, an input switch unit, an input connection unit, an output connection unit, an output switch unit, an output horizontal bus unit and a UPS unit, the cabinet comprises a framework and an isolation shell assembled on the framework, and the isolation shell is used for insulation and isolation; the periphery of the commercial power horizontal bus unit, the periphery of the power distribution bus unit, the periphery of the input switch unit, the periphery of the output switch unit and the periphery of the output horizontal bus unit are all provided with isolation shells. The isolation circuit is used for independently isolating the commercial power horizontal bus unit, the power distribution bus unit, the input switch unit, the output switch unit and the output horizontal bus unit. According to the power distribution module, the UPS unit can be overhauled or replaced without powering off the whole power distribution system.

A PET transmitter including an input conditioning and protection circuitry electrically connected to an electrical source, having an output and a switch connected at the output. There is a front end circuit having an input connected to the switch and an output connected to a PET transmission line. There is a source controller configured to close the switch to connect the source to the output of the front end circuit during a transfer period and open the switch to disconnect the source during a sample period. Across the output of the front end circuit, there is a minimum effective cross-line capacitance that enables the source controller to differentiate a measured voltage at the output of the front end circuit indicative of a fault and a measured voltage indicative of no fault without a PET receiver being in electrical communication with the output of the front end circuit.

The charging system comprises: two chargers which deliver instantaneous electrical energy for charging an electrical device; an electrical chain which links the two chargers; three charging points that are electrically connected to the chargers via the electrical chain; a switching system which connects or does not connect a charging point to the first or to the second charger; a control system which controls the switching system.

The present disclosure relates to the field of power supply technology, and discloses a power distribution module allowing maintenance without power interruption and power distribution system. The power distribution module includes a cabinet and a mains horizontal busbar unit, a distribution busbar unit, an input switch unit, an input connection unit, an output connection unit, an output switch unit, an output horizontal busbar unit and a UPS unit which are installed in the cabinet in a modular design. The cabinet includes a rack and an isolation housing for insulation isolation assembled on the rack. The isolation housing is provided around the mains horizontal busbar unit, around the distribution busbar unit, around the input switch unit, around the output switch unit and around the output horizontal busbar unit, so that the mains horizontal busbar unit, the distribution busbar unit, the input switch unit, the output switch unit and the output horizontal busbar unit are isolated individually from each other. With the power distribution module, the UPS unit can be repaired or replaced without powering off the power distribution system.

A battery system with a large lithium-ion battery powers auxiliary devices by discharging battery cells distributed among multiple battery packs. The discharge of the battery cells is effectively controlled while maintaining the expected lifespan of the lithium-ion battery cells. Each battery pack internally supports a battery management system and can have identical components, thus supporting easy scalability to higher power / energy architectures. Battery packs can be added or removed without interfering with the user, wherein one of the battery packs serves as the master battery pack and the remaining battery packs serve as slave battery packs. When the master battery pack is removed, one of the slave battery packs becomes the master battery pack. The master battery pack and the slave battery packs coordinate the charging and discharging of the battery cells via a communication channel such as a Controller Area Network (CAN) bus.

The invention relates to the technical field of power distribution systems, and particularly discloses a communication power supply capacity expansion and power distribution management system. The system comprises a hot plug capacity expansion unit, an intelligent power distribution unit and a system collaborative management unit, and the hot plug capacity expansion unit is used for completing online addition, deletion and replacement operation of a power supply module under the condition that the system is not powered off; the intelligent power distribution unit is used for monitoring the load state in real time and dynamically distributing power resources; and the system collaborative management unit is used for overall planning and coordinating the capacity expansion operation and the power distribution strategy and ensuring the stable operation of the system in the capacity adjustment process. According to the invention, through cooperation of online capacity expansion and dynamic power distribution, uninterruptible power supply module addition, deletion and replacement, load real-time monitoring and power resource optimization distribution, and global coordination of a capacity expansion process and a power distribution strategy are realized. The maintenance flexibility, the power supply reliability and the operation continuity of the communication power supply can be improved.

The invention relates to the technical field of plugging safety, and discloses an intelligent plugging safety control method for mobile energy storage equipment, which comprises the following steps: S1, an intelligent card completes non-contact identification through an NFC module, and an intelligent plugging connector is taken down; s2, the intelligent plugging connector is connected with an interface of the mobile energy storage equipment, meanwhile, the sensor recognizes the distance and transmits distance information to the control unit, when the distance information received by the control unit is smaller than a preset threshold value, the control unit controls the second electromagnetic lock to be locked, the intelligent plugging connector is connected with the mobile energy storage equipment, and then the mechanical lock is manually operated; and S3, the control unit dynamically adjusts the pre-charging current, the mobile energy storage device pre-charges the bus through a bus pre-charging loop, and when the control unit receives that the difference value between the bus and the load voltage is smaller than a preset threshold value, the control unit controls the main relay to be closed, the pre-charging relay to be disconnected, and the intelligent plug connector formally works in a live-line mode. According to the invention, the safety of plugging operation can be improved.

An apparatus (1) for providing DC output voltage to a subsea electrical device includes an input power supply module (6) and a plurality of DC-to-DC voltage converter modules (2). The input power supply module (6) provides DC input voltage to each of the DC-to-DC voltage converter modules (2). Each DC-to-DC voltage converter module (2) includes an input connector element (3) for receiving the DC input voltage, and a plurality of output connector elements (4) for providing a converted DC output voltage. Any of the output connector elements (4) of one DC-to-DC voltage converter module (2) may be electrically connected using a connecting cable element to any of the output connector elements (4) of another DC- to-DC voltage converter module (2) to enable one DC-to-DC voltage converter module (2) to be electrically connected in series and / or in parallel to another DC-to-DC voltage converter module (2). One of the output connector elements (4) of the DC-to-DC voltage converter module (2) is electrically connected to the subsea electrical device to provide the DC output voltage to the subsea electrical device.

The present disclosure features a system, method and non-transitory computer readable storage medium thereof for power supply. The method for power supply comprises receiving a first power of a general power supply by a detecting device including a switch set, a connecting port and a controller, and the controller enabling the switch set to operate, to supply a second power of the general power supply to a powered device (PD) through a power supply device (PSE).

The invention relates to the technical field of power supply or power distribution circuit systems, and provides a power module hot backup circuit based on a VPX case architecture, which comprises an LTC chip, the LTC chip is connected to a G pole of an MOS tube, an S pole and a D pole of the MOS tube are connected in series to a power output circuit, and the LTC chip is further connected to the power output circuit through two paths of pins for measuring voltage. Each of the two pins is connected in series with a resistor and is connected in parallel with a capacitor. The method is particularly suitable for multi-module power supply redundancy backup, and can seamlessly use modules with normal functions after a single module fails, so that the reliability and the stability of power supply voltage are improved, and the requirement that system equipment continuously works for a long time is met; load balanced distribution between the dual-power-supply modules can be conveniently realized, load distribution approximately equal to 1: 1 is achieved, the reliability of the dual-power-supply modules during working is improved, and the requirement of small modules for high power is met.

Method, modules and a system formed by connecting the modules for controlling payloads are disclosed. An activation signal is propagated in the system from a module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to external power source such as AC power.

One exemplary embodiment is a vehicle system comprising an engine, an exhaust aftertreatment system including a heating element, an electric machine configured to selectably operate as a motor or a generator, an inverter module including a plurality of inverter phase legs and an auxiliary leg, and an electronic control system in operative communication with the inverter module and the exhaust aftertreatment system. The electronic control system is configured to evaluate whether the electric machine is operating as a generator, selectably operate the plurality of inverter phase legs to rectify AC power received from the electric machine, evaluate whether to heat one or more components of the exhaust aftertreatment system, and selectably operate the auxiliary leg to provide rectified power from the inverter legs to one or more electrical heating elements thermally coupled with the one or more components exhaust aftertreatment system effective to heat the one or more components.

A power system, a data center, and a charging device are provided, and relate to the field of electronic power. The power system includes a centralized controller (10) and three power modules (11). Each phase of an alternating current power supply is connected to one power module (11), and an input end of each power module (11) is connected to one phase of the alternating current power supply. Each power module (11) includes a low voltage controller (30) and at least two power units (20). Each power unit (20) includes a unit controller (201). The centralized controller (10) is connected to each low voltage controller (30) by using a bus. The centralized controller (10) sends a control signal to each unit controller (201) by using each low voltage controller (30), to control the unit controller (201) and / or a power conversion circuit (210). The power system can implement hot swap of the power module (11) and improve on-site operation reliability.

The disclosed technology relates generally to switching devices and more particularly to switching devices employing micro-electromechanical system (MEMS) switches. The switching devices can serve as circuit breakers for protecting electrical systems against certain electrical events. The switching devices can be configured to monitor and control one or both the MEMS switches and the electrical systems being protected. The disclosed technology additionally relates to systems including the switching devices and methods of using the switching devices.

Tool for securing at least one battery module, associated assembly and method The tool comprises: - an electrically insulating rod, - a tip having a mounting region mounted at a distal end of the insulating rod, the tip comprising a head (54) intended to grip a plug (36) for connecting / disconnecting a manual electrical connection / disconnection system configured to be maneuvered in rotation between an electrical connection configuration of the battery module and an electrical disconnection configuration of the battery module. The tip comprises a transmission joint (56) connecting the mounting region to the head (54). Figure for abstract: figure 6

A method operable by a controller of a static transfer switch (STS) is provided. The STS includes first and second inputs selectively coupled with first and second power sources via first and second circuit breakers, respectively, an output coupled with a load, first and second bypass breakers selectively coupling the first and second inputs, respectively, with the output, at least one removable power stage module including first and second power stages configured to conduct electrical power when active, first and second contactors selectively coupling the first and second inputs with the first and second power stages, respectively, and a load switch selectively coupling the first and second power stages with the output. The method includes modifying an operating state of the first and second contactors and the first and second power stages to implement a bypass operation and an un-bypass operation of the STS in response to a trigger condition.

The present invention discloses a DC microgrid ground fault protection method, system, device, and medium for adaptive distributed energy and load plug-and-play. The method includes the following steps: real-time calculation of fault area location information; when the regional fault ground current and power change rate meet the protection initiation criteria, determining the fault area based on the fault area location information; sending a trip command to the DC circuit breaker connected to the fault area; and disconnecting the DC circuit breaker after receiving the trip command. Based on the characteristics of the DC microgrid, such as flexible and changeable source-storage-load regional structure, diverse control modes, and easy extraction of high-frequency fault data, the present invention adds a constant power load to the load area to simulate actual scenarios, establishes a universal protection positioning method, realizes the plug-and-play nature of the fault protection positioning method under the conditions of variable DC microgrid source-storage-load structure, and ensures accurate isolation of different fault areas when a ground short circuit fault occurs in the DC microgrid source-storage-load.

A method and system provide a plurality of power cell modules. The power cell modules can be stacked together such that they are electrically connected and share a collective multi-voltage bus. Electronic appliances can be connected to one of the power cell modules to be powered by all of the connected power cell modules. Power cell modules can be easily added or removed from the bank without interrupting the supply of power to the electronic appliance.

A drive system having a plurality of drive units that each have a converter and preferably one motor, wherein the drive system includes an energy supply system that supplies electric energy to the drive units, and a control system that includes a control computer and at least one control line, where the control system transmits control instructions to the drive units, and where the energy supply system and the drive units are releasably connected together via a first respective connection connector, preferably via a plug connection, and the control system and the drive units are releasably connected together via a second respective connection connector, preferably via a plug connection.

The present invention relates to a voltage control and disconnection device to reduce the voltage of photovoltaic module strings when the weather conditions are such that the voltage can rise above 1500 VDC. To that end, the device has three inputs and one output, which connects to a photovoltaic module and to the adjacent photovoltaic module, the output leading to the inverter. The device measures the voltage of the photovoltaic module and, when a limit voltage that is internally preset based on the voltage of the module and the number of modules of the string is exceeded, it disconnects this photovoltaic module, reducing the string by one module. The disclosed invention provides the main advantage of better optimising the strings, at a much lower economic cost and with practically zero losses in dissipated power, while increasing the generation of daily energy of the photovoltaic farm, making it possible to always operate at the optimal voltage for the inverter.

The invention relates to the technical field of substation emergency power supply, in particular to a substation mobile storage battery emergency quick access box, which comprises a box body, a quick interface module, a protection control module and a switch module, and is characterized in that the quick interface module, the protection control module and the switch module are integrally mounted in the box body; the quick interface module is used for realizing quick butt joint between the emergency storage battery pack and the transformer substation direct current system, comprises a direct current side quick plug matched with a reserved interface of the transformer substation direct current system and a storage battery side quick interface used for being connected into the emergency storage battery pack, and is provided with a mechanical key positioning device; and the protection control module is electrically connected with the switch module, is used for monitoring circuit parameters and controlling the action of the switch module, and integrates an overcurrent protection unit, a short-circuit protection unit and a countercurrent protection unit. Emergency power supply rapid access is achieved, operation safety and reliability are improved, adaptability is high, and stable operation of a transformer substation direct current system is guaranteed.

Techniques and apparatus for replacing a primary power supply (e.g., a primary battery) while powering a portable device using an auxiliary power supply (e.g., a backup battery or supercapacitor). An example integrated circuit (IC) for power management generally includes a first power node; a second power supply node; a first port for coupling to a main power source; a first switch coupled between the first power supply node and the first port; a second port for coupling to an auxiliary power source; a second switch coupled between the first power supply node and the second port; and a third switch coupled between the first power supply node and the second power supply node. For certain aspects, the IC also includes a third power supply node, a voltage regulator coupled between the first power supply node and the third power supply node, and a fourth switch coupled between the second power supply node and the third power supply node.

Disclosed is a power distribution system for powering a plurality of remote radio heads mounted on the top of a cell tower. The distribution system includes a plurality of bulk power inputs, each of which is coupled to a row of power input sockets, and a plurality of breaker input socket rows. The power input socket rows and breaker input socket rows are arranged such that they are evenly spaced and the sockets are in columns. The system includes a plurality of jumpers that are designed to be installed such that multiple combinations of connections between bulk power inputs and circuit breaker inputs such that the system can be easily reconfigured.

A method and system provide a plurality of power cell modules. The power cell modules can be stacked together such that they are electrically connected and share a collective multi-voltage bus. Electronic appliances can be connected to one of the power cell modules to be powered by all of the connected power cell modules. Power cell modules can be easily added or removed from the bank without interrupting the supply of power to the electronic appliance.

The application discloses a drive system (1) having a plurality of drive units (2), wherein the drive units (2) each comprise a converter (3) and preferably a motor (4), an energy supply system (5) designed to supply electrical energy to the drive units (2), and a control system (6) comprising a control computer (8) and at least one control line (9), wherein the control system (8) is designed to transmit control commands to the drive units (2). The drive system (1) is characterized in that the energy supply system (5) and the drive units (2) are connected to one another in a detachable manner via first connectors, preferably via plug connections, and the control system (6) and the drive units (2) are connected to one another in a detachable manner via second connectors, preferably via plug connections.

A power strip (10) includes a body (60) having a planar front wall (12) including a plurality of electrical receptacles (14) and a rim wall (16) extending rearwardly from a perimeter of the front wall (12). A rear wall (22) has electrical prongs (32) to be received into receptacle (15) on an electrical outlet (11), and the rear wall (22) is recessed inwardly such that the electrical outlet (11) is housed within the recess. A hole (36) extends through the front and rear walls (12, 22) alignable with a hole (50) in the electrical outlet (11), and a threaded fastener (34) extends through the hole (36) and the hole (50) in the electrical outlet (11) to secure the power strip (10) to the electrical outlet (11).