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7 results about "Peak power output" patented technology
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Peak power output (PPO), also known as "peak work rate" is a common measure of exercise intensity. For example, researchers may ask subjects to complete an incremental exercise test where VO₂max is measured while the person cycles at increasingly difficult power generation levels as measured by a cycle ergometer.
Deep peak regulation and frequency modulation heat energy storage system and method coupled with coal-fired unit
The invention discloses a deep peak regulation and frequency modulation heat energy storage system and method coupled with a coal-fired unit, and belongs to the technical field of coal-fired unit flexible transformation and power grid regulation. Aiming at the problems that a single fused salt / solid heat storage occupies a large area, the initial investment is high, a steam generation system is complicated, and a conventional coal-fired unit is difficult to meet the requirements that the minimum power generation output of a new generation coal-electricity pilot demonstration unit is less than or equal to 20% Pe, and deep peak regulation is realized to give consideration to primary frequency modulation performance through self or auxiliary regulation as much as possible in the specification of power generation and transformation energy (2025) 363. The system comprises a heat energy storage unit and a coal-fired unit, the heat energy storage unit comprises a demineralized water supply water tank, an electrode steam boiler, a spherical tank and a heat storage type steam temperature increasing device, and the structure of spherical tank flash evaporation steam supply and heat storage temperature increasing sensible heat supplementing is adopted to be matched with steam supplementing of a steam turbine. The combined minimum power generation output of the two can be reduced to 10% Pe, the peak increase output is at least 5.6% Pe, primary frequency modulation is assisted by increasing and decreasing the power consumption of the electrode steam boiler, and new energy consumption is assisted.
Owner:LIAONING ELECTRIC POWER RECONNAISSANCE & DESIGN INST
Regulating method and device for enhancing peak power output of heat supply unit
ActiveCN119496196BLighting and heating apparatusAc network load balancingThermodynamicsMechanical engineering
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +1
A current detection circuit based on h-bridge
PendingCN122109869AElectrical testingAltering measuring range circuitsElectrical batteryHemt circuits
The application relates to a current detection circuit based on an H-bridge, comprising an H-bridge circuit and a current sampling and commutation circuit; the current sampling and commutation circuit is used for collecting the current flowing through the H-bridge circuit and comparing the current with a preset current threshold to control the commutation of the H-bridge circuit; a multistage amplification circuit is connected to the current sampling and commutation circuit and is used for multistage amplifying the collected current to obtain multistage amplified current; an MCU is used for providing the current sampling and commutation circuit with the preset current threshold and selecting the multistage amplified current in sections. The application carries out multistage amplification on weak current, effectively solves the pain points of low accuracy in a large range and weak signal in a small range in wide-range current sampling; the original current data are selected in sections, the peak current can be accurately detected, accurate basis is provided for the peak power output / input of a battery pack, and problems such as power overload and unstable motor power output caused by current detection errors are avoided.
Owner:WUHAN SHENGSHI QICHUANG TECH CO LTD
Vehicle power display method and device and storage medium
The invention discloses a vehicle power display method and device and a storage medium, and relates to the technical field of power control. According to the scheme, the method comprises the steps that the instantaneous power and the current working mode of a target vehicle are obtained; the target vehicle is provided with at least two power sources; the current working mode is used for representing the working state of each power source; generating power display information according to the instantaneous power and the mode peak power in the current working mode; the power display information is used for comparing and displaying the instantaneous power and the mode peak power; the mode peak power is the peak power capable of being output by the target vehicle in the current working mode; and outputting the power display information. Therefore, it can be ensured that the power display information always accurately reflects the actual output capacity of the current power system in different working modes, the display value of the power meter is highly consistent with the operation intention of a driver, and the driving experience of a user is improved.
Owner:GREAT WALL MOTOR CO LTD
Shift control method, device and vehicle
The application provides a gear shifting control method and device and a vehicle. When a gear shifting instruction of the vehicle is received, the current gear shifting type is determined. If the target motor of the vehicle has a power supplement demand under the current gear shifting type, the target power supply power of the target motor in the power supplement stage is determined based on the power supplement stage corresponding to the current gear shifting type, and the target output power of the power battery to the target motor in the power supplement stage is adjusted based on the target power supply power and the peak power output duration of the power battery. The target power supply power is used to represent the power required by the power battery of the vehicle to provide to the target motor when the power battery operates at the peak power. Thus, in the power supplement stage corresponding to the current gear shifting type, the peak power of the power battery can be fully utilized to supply power to the target motor, so that the target motor has sufficient capacity to adjust the speed or supplement the torque during the gear shifting process, thereby effectively improving the smoothness of the gear shifting process.
Owner:NINGBO GEELY ROYAL ENGINE COMPONENTS CO LTD +1
Hydrogen fuel cell and lithium battery cooperative work control method
The invention relates to the field of automobiles, in particular to a cooperative work control method for a hydrogen fuel cell and a lithium battery, in the cooperative work process of the hydrogen fuel cell and the lithium battery, the lithium battery provides a peak clipping and valley leveling effect, bears load power fluctuation, peak power output or absorption and short-time high-power requirements, and smooths bus voltage; the hydrogen stack serves as a basic power supply to provide stable power, is responsible for long-term energy supply and peak regulation capability, ensures that the hydrogen stack always works in a high-efficiency region and operates in a constant working condition for a long time, improves the driving efficiency of the fuel cell, does not participate in high-frequency regulation, and reduces the attenuation of the fuel cell.
Owner:WISDOM FUJIAN AUTOMOBILE CO LTD
Wave transmitting method, device, apparatus and storage medium
This application discloses a wave generation method, apparatus, device, and storage medium, relating to the field of motor control technology. The method includes: determining the three-phase duty cycle, pulse width modulation period, and reference modulation ratio based on the actual torque and actual speed of the target motor; determining the sampling trigger time based on the reference modulation ratio and pulse width modulation period; determining the comparison value limiting range based on the sampling trigger time and dead time; and limiting the actual comparison value according to the limiting range; and generating a pulse width modulation signal based on the limited actual comparison value and dead time. This application adaptively adjusts the sampling trigger time by introducing a reference modulation ratio and adjusts the comparison value limiting range accordingly, maximizing the theoretical upper limit of the actual output duty cycle. This allows the inverter to output higher voltage over a wider operating range, thereby improving the peak power output capability of the target motor.
Owner:格至达智能科技(江苏)有限公司