85results about How to "Reduced energy storage" patented technology

An optical system comprises an optical apparatus arranged to direct received light to different paths and to provide a first signal and a second signal, said first and second signals having an optical difference therebetween sufficient for distinguishing optical signals, an amplifier in optical communication with the optical apparatus for amplifying the first and second signals, and a discrimination device to receive amplified light and to provide output light responsive to the optical difference.

A hybrid electric vehicle is provided. The hybrid electric vehicle includes an internal combustion engine, a mechanical torque transmission device for transmitting engine torque to at least one wheel, the mechanical torque transmission device having a lash region, an electric energy conversion device connected downstream of the mechanical torque transmission device, and a control system. The control system, adjusts the electric energy conversion device to meet a desired vehicle response, adjusts the internal combustion engine torque to transition through the lash region, and then adjusts the electric energy conversion device torque and the internal combustion engine torque to meet the desired vehicle response.

A power supply provides dc power over a wide range of output voltages at full operating power by utilizing multiplying circuits (200) supplied by a source of high-frequency alternating current (90). The multiplier circuits include a plurality of multiplier cells containing at least two diodes (207, 209) and a driving capacitor (208). The multiplier cells are shunted by bypass rectifiers (205, 206) arranged such that currents are allowed to flow from multiplier input terminals to power supply output terminals. The bypass rectifiers do not conduct current for low output current levels, but conduct increasing levels of current when output currents increase beyond a conduction threshold value, thereby increasing the maximum available output current. Interactions among the diodes and capacitors in the multiplier circuits cause the amplitudes of the multiplier input currents to remain relatively constant as the output voltage is varied while operating at full power.

A temperature control method for an electrochemical energy storage device having a cooling device for cooling the storage device in a vehicle. An actual temperature value of the storage device is determined, and a desired temperature value of the storage device is set by a two-point control system, which activates the cooling device at an upper temperature limit of the storage device and deactivates the cooling device at a lower temperature limit. The upper temperature limit and/or the lower temperature limit are defined as a function of time during operation of the storage device or during activation of the cooling device. The upper temperature limit and/or the lower temperature limit are defined as a function of the energy storage device data and/or the vehicle operating data.

The present invention is directed to the provision of a servomotor driving apparatus that feeds energy stored in a power storage part connected with a DC link that connects a rectifier circuit with an inverter circuit so that the energy stored in the power storage part can be reduced. A motor driving apparatus (1) includes: a step-up type DC/DC converter circuit (11) for boosting voltage appearing at an output of the power storage part (C1) connected with a DC link; and a DC/AC conversion circuit (12, 14) for converting the boosted DC electric power into AC electric power and feeding it to an electric power source.

The present invention provides for compositions, methods and kits for regulating energy metabolism. In one aspect, the invention provides for compositions that comprise a combination of (a) branched chain amino acids, such as leucine, and (b) vitamin B6, or any precursors or metabolites of (a) or (b). These combinations may be synergistic and/or effective for reducing weight or adipose volume. In another aspect, the invention provides for methods of regulating energy metabolism by the administration of one or more compositions comprising branched chain amino acids and vitamin B6. The invention also provides for kits comprising compositions of branched chain amino acids and vitamin B6 packaged in an oral dose form with usage instructions.

The invention provides an electromagnetic resonance control circuit, an electromagnetic heating device and a method for controlling a transistor. The electromagnetic resonance control circuit comprises a power module, a resonance circuit, the transistor and a controller, the resonance circuit is connected to the power module, the transistor is arranged between the resonance circuit and the ground, and used for executing the power-on or power-off operation according to pulse width modulation signals sent by the controller to control the work state of the resonance circuit, and the controller is connected to the power module and the control end of the transistor, and used for adjusting the duty ratio of the pulse width modulation signals sent to the transistor according to the change condition of voltages output to the resonance circuit by the power module to control the power-on time of the transistor. According to the technical scheme, the power-on time of the transistor can be controlled according to the voltages output to the resonance circuit, power output is increased in a low-voltage area, power output is reduced in a high-voltage area, the peak voltage and the peak current of the transistor are reduced under the condition of identical power, and therefore the transistor is effectively protected.

The invention discloses an energy management and intelligent control-based solar cooling tower, which comprises a solar battery, a first motor, a water pump, a second motor and speed reducer, a fan, a hybrid converter connected with the output end of the solar battery, an intelligent controller, and a sensor group; the output end of the hybrid converter is connected with the input ends of the first motor and the second motor and speed reducer; the signal output end of the sensor group is connected with the signal input end of the intelligent controller; the output end of the intelligent controller is connected with the signal input end of the hybrid converter; and the signal output end of the hybrid converter is connected with the signal input end of the intelligent controller. In the control process, the intelligent controller reasonably distributes the flowing direction of the electric energy through the hybrid converter by an energy management method, and performs intelligent speedregulating control on the first motor and the second motor and speed reducer by a water inlet temperature negative feedback method and a minimum enthalpy difference control method, and an energy-saving effect is achieved on the premise of ensuring operating reliability.

Disclosed are novel interconnections of a coupling circuit and an energy storage device which enables the storage device to provide back-up power for a switching power supply without requiring the device to store or output high voltage, and which enables full utilization of the energy stored in the device. In exemplary embodiments, the combination of the coupling circuit and the energy storage device may be coupled between the input and output of the switching power supply (e.g., between the non-ground terminals of the input and output ports of the switching power supply). The coupling circuit is configured to couple power from the energy storage device to the input of the switching power supply when the input power source is not provided to the switching power supply, and optionally to couple power from the input power source to the energy storage device when the input power source is provided.

A dual input power supply system/method providing uninterruptable power to a protected load device (PLD) is disclosed. The system includes hybrid switch devices (HSD) comprising semiconductor and relay/contactors that minimize the OPERATE/RELEASE times associated with switchover from a primary power source (PPS) to a secondary power source (SPS). An operate/release controller (ORC) monitors the condition of power provided by the PPS and SPS and determines the optimal transfer time to activate the HSD and switch between the PPS and SPS based on the PLD configuration. Use of the HSD in conjunction with the ORC permits a wide variety of series permutated AC/DC primary (PPS) and secondary (SPS) power sources, EMI snubbers (EMS), bridge rectifier diodes (BRD), AC-DC converters (ADC), and DC-DC converters (DDC) to service the PLD, while simultaneously reducing storage capacitors normally required to cover the OPERATE/RELEASE times associated with traditional PPS/SPS switchover/failover delays.

When a control device detects a request for stopping power generation of a fuel cell, electrical energy discharged from the fuel cell is supplied to an energy storage and other electrical devices such as an air compressor. At this time, electrical energy is supplied preferentially to the other electrical devices. Accordingly, discharge/charge losses in the energy storage can be reduced, compared to a technique in which an energy storage is charged preferentially at the time of stopping power generation of a fuel cell.

A hybrid vertical energy storage system is invented wherein the components responsible for the conversion, storage and production of energy are used as the weighted component of a gravitationally aided energy storage device. The present invention allows gravity to operate mechanical devices which may help move a volume of fluid in order to compress a gas and store potential energy. The present invention utilizes the attributes of pumped hydro by using gravity assisted fluid transfer, and also combines Compressed Air Energy Storage (CAES) functionality by powering hydraulic pumps and motors to transfer fluid from one vessel to another vessel. This feature allows conventional, inexpensive, market proven components to make the capture, conversion, storage and production of energy more effective and affordable while eliminating the placement issues associated with such large scale pumped hydro and CAES systems while extending battery service life. Ideally, combining the positive attributes of some or all of the existing technologies into one energy storage system would provide a real and meaningful improvement, especially if the improvement reduced or eliminated economic, environmental and operational flaws associated with the individual technologies. This invention also provides a method of combining the output of individual, combined attribute energy storage systems to provide user definable and expandable electrical energy production. The vertical aspect of the invention allows operational attribute that separates and makes independent the capture and storage of energy being placed into the energy storage system and the hydro-pneumatic production of energy exiting the system.

The invention discloses a high-voltage pulse human-body calculus therapeutic system based on plasmas. The system comprises an endoscope device, a calculus crusher, an electrode probe and a foot switch, wherein the calculus crusher is used for generating high-voltage pulses; the electrode probe is connected with the calculus crusher through a transmission cable; the foot switch is connected with the calculus crusher through a wire cable; the electrode probe stretches into a human body, and directly touches calculi in the human body. According to the system, based on a touch type calculus crushing principle, after the electrode probe stretches into the human body, and directly touches the calculi, the calculi are crushed in a way that the calculus crusher generates high-voltage pulses, i.e. the calculi are intensively crushed in a way that the high-voltage pulses generate plasma explosion in the calculi; as the energy required for calculus crushing is on a lower level, little damage occurs to the human body; moreover, the calculus crushing energy can be precisely controlled every time; the system is safe and reliable to use, capable of efficiently and rapidly removing the calculi, wide in application prospect, and applicable for popularization.

The invention provides a method for preventing and controlling rock burst through energy release modification of a deep well high-stress main roadway coal pillar, and belongs to the technical field ofmining. The method comprises the following steps: firstly, large-diameter pressure relief drilling is implemented, to release accumulated elastic energy of a coal mass; secondly, ultrahigh-pressure fixed-point hydraulic fracturing is carried out in the large-diameter drill hole, the complete coal pillar is cracked, and the energy storage capacity of the main roadway coal pillar is weakened; then,grouting reinforcement is carried out on the fractured main roadway coal pillar, the strength of the main roadway coal pillar is improved, and the impact threshold value is increased; and finally, reinforcing support is implemented, and the impact resistance of the main roadway coal pillar is improved. According to the method, the elastic energy accumulated by the main roadway coal pillar is released, the physical and mechanical properties of the main roadway coal pillar are changed, the impact threshold of the main roadway coal pillar is improved, the elastic energy accumulated by the high-stress main roadway coal pillar can be effectively reduced, and the problem that after pressure relief of the main roadway coal pillar, the strength is reduced, and surrounding rock large deformation is likely to happen is solved.

The present invention relates to an energy storage unit (1) having a plurality of electrochemical cells (2), wherein the electrochemical cells (2) each have a first outer face (3) comprising a first electrode (5), and a second outer face (4) comprising a second electrode (6), and the electrochemical cells (2) are electrically interconnected owing to the lined-up arrangement (9) of the electrochemical cells (2) by way of the outer faces (3, 4) by means of the electrodes (5, 6). The energy storage unit (1) additionally comprises a first frame element (7) and a second frame element (8), which frame elements are directly or indirectly connected to one another, wherein the first frame element (7) is arranged at one end (10) of the lined-up arrangement (9) of the electrochemical cells (2), and the second frame element (8) is arranged at the other end (11) of the lined-up arrangement (9) of the electrochemical cells (2). The present invention also relates to a battery cell (2) for use with an energy storage unit (1) according to the invention, and also to a method for producing a battery cell (2) of this kind.

The reference voltage generator for a switch mode regulator includes: a reference voltage source; a soft-start voltage generator; and a comparator having a directional offset for comparing an output of the reference voltage source with an output of the soft-start voltage generator. Because of the intentional directional offset, the pass switch does not turn ON during the transition from the ramp voltage to reference voltage, therefore reducing energy stored in the inductor. Thus the voltage overshoot is reduced during the end of the soft-start cycle.

Method of operating an energy system, said energy system comprising:

• • a local common transmission bus;
  • at least one local energy connected to said bus;
  • at least one local load connected to said bus;
  • an energy store connected to said bus;
  • a controllable interface arranged to exchange energy between said bus and an external distribution network external to said energy system;
  • a controller adapted to control said interface so as to carry out said exchange of energy.

According to the invention, the controller defines three modes based on the state of charge of the energy store which determine if, and how, energy is exchanged with the external network so as to optimize self-consumption and to perform ramp-rate reduction and peak shaving as appropriate.

The invention discloses a diffusion welding process for a thermal spraying coating of a crystallizer copper plate. The diffusion welding process comprises the steps of copper plate spraying pretreatment, coating material selection, thermal spraying, diffusion welding of the thermal spraying coating, cooling and discharging. As for the coating material selection, thermal spraying powder comprises 0.3-0.8% of C, 10-20% of Cr, 7-10% of Si, 4-6% of B, 5-10% of Cu, 2-5% of Mo, 1-2% of Al and the balance Ni. The diffusion welding of the thermal spraying coating comprises the steps that inert gas isintroduced into a heat preservation furnace, and diffusion welding treatment is conducted on the coating at a certain temperature within a certain period of time. Metallurgical bonding can be effectively formed between a crystallizer copper plate base body and the thermal spraying coating, the coating is good in performance and has excellent thermal conductivity, abrasion resistance and corrosionresistance, and the service life of the continuous casting crystallizer copper plate is prolonged.