6 results about "Plant efficiency" patented technology

The invention discloses a modular deep learning-based vertical axis wind power plant efficiency prediction system and method, and the system comprises a data acquisition module, a data preprocessing module, an aerodynamic parameter prediction module, an inter-fan aerodynamic interference capture module and an information fusion module which are connected in sequence. The aerodynamic parameter prediction module and the inter-fan aerodynamic interference capture module form a stackable deep learning network according to the number of fans in an actual wind power plant; the method comprises the following steps: acquiring vertical axis wind power plant simulation data under different parameter conditions, performing cleaning and smooth preprocessing on output aerodynamic parameter data of each fan, quickly predicting aerodynamic characteristics of the fans through a deep learning network, dynamically calculating aerodynamic interference effects among different fans, and constructing a fan aerodynamic interference model in the wind power plant. And finally, integrating output results to form a prediction result. The modularized deep learning method can give consideration to the precision and efficiency of efficiency prediction of the vertical-axis wind power plant, and is suitable for design and operation prediction of the vertical-axis wind power plant.

This invention provides an automatic optimization method, system, and device for the windward angle of a horizontal axis wind turbine, comprising the following steps: obtaining a wind turbine power fitting curve; dividing the rated active power into continuous intervals, and combining the wind turbine power fitting curve to obtain multiple continuous wind speed intervals corresponding to the rated active power; obtaining the active power-windward angle function relationship curve corresponding to each operating data interval; obtaining the yaw windward error value of the horizontal axis wind turbine to be processed; and correcting the windward angle of the horizontal axis wind turbine to be processed. This invention can reduce the power loss caused by the yaw windward error of the wind turbine, and improve the power plant efficiency and wind turbine safety and stability.

The invention belongs to the technical field of process tail gas treatment, and particularly relates to a natural gas-to-ethylene glycol process tail gas treatment method which comprises the following steps: 1) enabling purge gas at the top of an esterification tower to enter an MN absorption area at the top of the esterification tower, and spraying the purge gas with methanol at 30-40 DEG C to obtain coarsely treated purge gas; and 2) feeding the roughly treated purge gas to an MN recovery tower, simultaneously conveying factory air or oxygen to the MN recovery tower, spraying methanol at 15-20 DEG C to the upper part of the MN recovery tower, maintaining the pressure in the MN recovery tower to be 0.2-0.25 MPa, and discharging the treated tail gas from the top of the MN recovery tower. The process tail gas is subjected to two-stage treatment, the MN content of the tail gas discharged from the top of the MN recovery tower is lower than 0.02%, and meanwhile, the CO2 content of the tail gas can reach 3.7%, so that efficient recovery and utilization of the MN effective gas can be guaranteed, the emission of CO2 can be increased, the energy consumption of the device can be reduced, and the efficiency of the device can be improved.

The application discloses an intelligent power plant operation efficiency evaluation method and device, and relates to the technical field of efficiency evaluation, which comprises the following steps: carrying out topology level node deployment to obtain a level evaluation topology; performing operation parameter efficiency conversion to obtain a plurality of device level efficiency vectors; performing power plant efficiency hierarchical aggregation calculation on the plurality of device level efficiency vectors based on dynamic coupling weights to output P subsystem coupling efficiency vectors; performing cross-subsystem efficiency transfer calculation on the P subsystem coupling efficiency vectors by analogy driving unit layer M unit edge nodes to obtain M unit level aggregation efficiency vectors; and performing global efficiency synthesis based on a preset loss correction model to output a level stability evaluation chain. The application solves the technical problems of lack of hierarchy and inaccurate efficiency transfer calculation in the prior art power plant efficiency evaluation, and achieves the technical effects of accurately evaluating the efficiency of each level of the power plant and improving the accuracy and stability of the efficiency evaluation.

The present application relates to fuel cell power station control technical field, disclose a kind of multi-module fuel cell power station based on efficiency power regulation method.The method first obtains power station request power P0And the minimum output power Pmin of single fuel cell power module, according to the numerical relationship of both to determine the number of opened module and initial power is divided equally;When opening 4 modules, real-time detection and comparison each module operating efficiency, calculate the difference between the highest and lowest efficiency, if the difference exceeds the set threshold, with half of the product of the divided power and the efficiency difference as the adjustment amount, increase power to high-efficiency module, reduce power to low-efficiency module, cycle adjustment until the module efficiency difference is within the set range.The present application can avoid module running below the minimum output power, expand the power range of power station, while making the efficiency of each module consistent, reducing the decay of low-efficiency module, prolonging the overall operation life of power station, solve the problem of poor efficiency and short life caused by the existing power division method.

The invention relates to a method for load control of an electrolysis plant, comprising the following steps:-determining (100) a plant load setpoint (L, P) of the electrolysis plant corresponding to a target energy supply and / or target product output of the electrolysis plant,-determining (300) a module efficiency (Ei) of each electrolysis module, -optimizing (400) a plant efficiency function of the electrolysis plant under constraints (410) to meet the plant load setpoints (L, P), the plant efficiency function having a module load setpoint (Li) of each electrolysis module as a variable and a module efficiency (Ei) as a parameter,-setting (500) the module load setpoint (Li) of each electrolysis module as a function of the optimized plant efficiency function, the optimization step (400) is carried out under the constraint (420) that any two electrolysis modules, which are supplied by the same transformer-rectifier unit and of which the alternating intermediate voltages differ from a predetermined first phase difference before rectification, should be operated at the same module load setpoint (Li), and to an electrolysis plant suitable for carrying out said method.