13 results about "Power envelope" patented technology

This specification provides a data processing method and apparatus for wind-solar-hydrogen storage coupled systems. The method involves: acquiring the operating data and equipment status parameters of the target wind-solar-hydrogen storage coupled system; determining the net power sequence based on the operating data; identifying fluctuation states in the net power sequence and determining sliding window parameters based on the identification results; extracting multiple target data segments from the net power sequence according to the window length, and fusing these multiple target data segments with the equipment status parameters according to a window combination method to determine the target feature vector; using a preset power prediction model, determining the net power prediction sequence and prediction confidence level based on the target feature vector; determining the execution power envelope based on the net power prediction sequence, prediction confidence level, and preset operating constraints; and determining the target power of the electrolyzer and the compensation power of the energy storage device based on the execution power envelope. This improves the accuracy of power prediction and safe allocation.

In a first embodiment, a multi-radio access technology (multi-RAT) or 5G-only or 4G-only remote radio head (RRH) is disclosed, wherein the RRH is equipped with functionality and capability enabling it to measure total power usage from the entire RRH, or according to various granularities. In a second embodiment, a network architecture for providing cluster-level optimization of power is disclosed. The network architecture may include a non-RT SMO that provides optimizations based on measurements from various cells, which may incorporate data about total power usage of each cell. In some embodiments a heatmap may be used. In a third embodiment, techniques for calibrating power amplifiers in radio heads are disclosed, including calibration to specific use cases, calibration based on power envelope tracking, and calibration to a fixed number of set points.

The application discloses an energy scheduling system of an energy storage unit in a distributed power station, comprising a data access unit, a scheduling calculation unit, an instruction execution unit and a feedback correction unit. The energy scheduling system of the energy storage unit in the distributed power station introduces the energy storage unit to participate in level determination, power factor risk judgment, station-level reactive power reservation quantity allocation, active charge and discharge upper limit inverse calculation under PCS apparent power envelope and execution deviation attribution correction in the energy storage energy scheduling process of the distributed power station, so that the charge and discharge scheduling of the energy storage unit and the power grid gateway power factor treatment are connected in the same scheduling period, the corresponding PCS capacity is reserved for the power factor treatment while the photovoltaic consumption, load peak shaving and time-of-use electricity price scheduling are considered, and the next period scheduling boundary is corrected according to the execution result.

The application discloses a Shaguo Huang new energy power prediction method and system based on multi-time scale evaluation, and relates to the technical field of new energy power generation and power system operation control. The application effectively filters out abnormal prediction by dynamically determining each scale historical backtracking window and introducing cross-time scale power envelope constraints for consistency checking, and ensures the physical logic consistency between different scale prediction results; in combination with the start point offset checking and dynamic allowed interval verification, the application can timely identify and correct the prediction sequence seriously deviating from the actual situation, and greatly improves the anti-interference ability of the prediction system in a strong fluctuation scene.

This invention relates to the field of digital information transmission security and discloses a design method for an SM2 hardware accelerator resistant to side-channel attacks in an RTOS. The method includes: constructing an absolute time window strictly aligned with the communication time slot period based on a bus synchronization clock; monitoring the SM2 operation progress within the window and automatically triggering an isochronous flow control unit upon completion of the actual instruction; this unit drives the operation core to perform twin pseudo-instruction filling on irrelevant data, isomorphic to the actual instruction, until the window terminates and the result is output. This invention physically shapes non-constant-time cryptographic operations into carrier signals with fixed timing and continuous equal-amplitude power envelopes, eliminating feature leakage in differential power analysis and ensuring that the hardware accelerator presents a zero-jitter, time-rigid node to the RTOS, thus meeting the stringent requirements of deterministic transmission in industrial time-sensitive networks.

Improving power amplifier efficiency and linearity in a wireless transmission circuit is disclosed. Like conventional Doherty power amplifiers, a power amplifier circuit disclosed herein amplifies a signal using a carrier path and a peaking path. Contrary to activating the peaking path based on a conventional feedback-based activation scheme, the power amplifier circuit is configured to activate the peaking path based on a feedforward activation scheme. Specifically, the power amplifier circuit is configured to receive an envelope signal that is time-aligned with a time-variant power envelope of the signal to be amplified therein. Herein, the power amplifier circuit is configured to process the envelope signal to ensure that activation of the peaking path tracks compression of the carrier path under various local environmental conditions. As a result, it is possible to improve efficiency and linearity of the power amplifier circuit across a wide modulation bandwidth and under various local environmental conditions.

Methods, systems, and devices for power envelope modification for memory systems based on time to thermal throttle are described. A memory system may dynamically change the power limit based on operating conditions associated with the memory system. For example, the memory system may measure the time before entering a thermal throttle mode. If the time is relatively short, the memory system may decrease the power limit, which may cause the time before entering the thermal throttle mode during a subsequent burst of host activity to increase. Alternatively, if the time is relatively long, the memory system may increase the power limit, which may cause the time before entering the thermal throttle mode during a subsequent burst of host activity to decrease.

The application relates to the technical field of ultrasonic transducer driving and power electronics, in particular to an ultrasonic transducer driving method and system based on power envelope modulation, wherein the method comprises the following steps: receiving a control signal, charging and discharging an energy storage capacitor through bidirectional current control to obtain a linear voltage track, and outputting a power modulation control signal after isolation amplification by a voltage buffer; inputting the power modulation control signal into an injection node of a feedback network to form a voltage feedforward signal, changing an output adjustment target through a DCDC main circuit, generating a DC bus voltage varying with the control signal through closed-loop control; supplying power to bridge driving through the DC bus voltage to obtain an excitation waveform linearly scaled with the DC bus voltage; and inputting the excitation waveform into an ultrasonic transducer after processing by an LC output shaping network, to drive the ultrasonic transducer to realize smooth transition of upslope, platform and downslope within a single pulse group. Thus, the problems of contradiction between energy efficiency and performance, insufficient programmability and the like in the prior art are solved.

This invention discloses an energy management and control method and system for a plant energy storage system based on EMS, belonging to the field of energy management technology. It constructs a set of basic operating state variables; calculates the changes in remaining energy and load-side voltage of the energy storage system under adjacent data acquisition nodes to construct an operating state stability judgment result and generate a grid-connected / off-grid switching preparation status flag; when stability conditions are met, it constructs an energy-side envelope coefficient and a voltage-side disturbance suppression coefficient to form a grid-connected power envelope upper limit or an off-grid power envelope upper limit; it selects the corresponding maximum allowable output power and calculates the voltage consistency deviation between the energy storage system output voltage and the load-side bus voltage; when the deviation exceeds a preset threshold, it adjusts the power upper limit and generates a final power control command value, thereby improving the operating stability and voltage support capability of the plant energy storage system under grid-connected / off-grid operating conditions.

Dynamic impedance modulation in a power management circuit is provided. The power management circuit, which includes a power management integrated circuit (PMIC) and a power amplifier circuit, is configured to amplify a radio frequency (RF) signal for transmission. Herein, the PMIC is configured to generate a supply voltage in accordance with a time-variant power envelope of the RF signal and the power amplifier circuit is configured to amplify the RF signal based on the supply voltage. Specifically, an impedance modulation circuit is provided in the power amplifier circuit and configured according to various embodiments to perform a load modulation when an instantaneous power level of the RF signal falls within a defined power range. As a result, it is possible to reduce a dynamic voltage range (e.g., peak-to-peak voltage range) of the supply voltage to help improve efficiency of the power management circuit.

In one embodiment, a method herein comprises: determining, by an access point, a future transmit power envelope (TPE) change in a wireless local area network (WLAN); sending, from the access point to a plurality of wireless stations (STAs) within the WLAN, an indication of the future TPE change based on a particular coordination parameter; and performing, by the access point, the future TPE change for the WLAN according to the particular coordination parameter. In another embodiment, a method herein comprises: receiving, by a wireless station (STA) in a wireless local area network (WLAN), an indication of a future transmit power envelope (TPE) change from an access point for the WLAN; determining, by the wireless STA and based on the indication, a particular coordination parameter for the future TPE change; and performing, by the wireless STA, the future TPE change according to the particular coordination parameter.

In a first embodiment, a multi-radio access technology (multi-RAT) or 5G-only or 4G-only remote radio head (RRH) is disclosed, wherein the RRH is equipped with functionality and capability enabling it to measure total power usage from the entire RRH, or according to various granularities. In a second embodiment, a network architecture for providing cluster-level optimization of power is disclosed. The network architecture may include a non-RT SMO that provides optimizations based on measurements from various cells, which may incorporate data about total power usage of each cell. In some embodiments a heatmap may be used. In a third embodiment, techniques for calibrating power amplifiers in radio heads are disclosed, including calibration to specific use cases, calibration based on power envelope tracking, and calibration to a fixed number of set points.

A PCI Express accelerator card capable of exa-class artificial-intelligence inference within a six-hundred-watt power envelope is disclosed. The card receives twelve-volt DC power through a 12VHPWR connector and employs a multi-phase voltage-regulation network that distributes regulated power to stacked semiconductor dies on a silicon substrate. Distributed temperature sensors and predictive control firmware coordinate electrical and thermal management to maintain safe junction temperatures using standard air or liquid cooling, enabling desktop-class exa-FLOPS performance without immersion systems.