13results about How to "Efficient consumption" patented technology

The application discloses a data-driven optimal control method for a grid-connected inverter. The method comprises the following steps: constructing a DeePC optimization controller of the grid-connected inverter on the grid side; acquiring a data matrix of the grid-connected inverter in a preset historical period and an initial trajectory after a preset adjacent period, inputting the controller, setting parameters for different control targets and types of the grid-connected inverter, outputting an optimal input data sequence after processing, generating a sinusoidal pulse width modulation wave signal and acting on the grid-connected inverter, and realizing data-driven optimal control. The method can automatically perceive and adapt to the dynamic characteristics of the actual power grid through real-time data-driven predictive control, can present or enhance the control behavior of the grid-constructing or grid-following inverter by modifying the cost parameters, can realize multi-mode flexible, optimal and coordinated control, has excellent dynamic response and steady-state performance, is beneficial to safe and stable operation, and improves the ability to adapt to complex and variable operating conditions and power grid strength.

The invention discloses a highway self-consistent energy system based on ammonia energy storage and an operation method of the highway self-consistent energy system, and belongs to the technical field of comprehensive energy systems. The system comprises an energy supply part, an electricity-hydrogen conversion unit, an ammonia energy storage unit, a multi-energy flow load part and a cascade energy utilization unit, the cascade energy utilization unit comprises a solid oxide fuel cell module, a micro gas turbine, a waste heat boiler and a heat storage tank; the solid oxide fuel cell module uses ammonia in an ammonia storage tank for first-stage power generation; high-temperature waste gas is guided into the micro gas turbine for second-stage power generation; medium and low temperature waste heat discharged by the micro gas turbine is captured by the waste heat boiler and stored in the heat storage tank; and heat energy in the heat storage tank is used for cold-state start preheating of the ammonia synthesis module in the ammonia energy storage unit by a start preheating loop. According to the system, energy gradient utilization of first-stage power generation, second-stage power generation and third-stage heat supply is achieved, the multi-energy flow load requirements of electricity, heat and hydrogen can be met at the same time, and the total energy efficiency, the self-consistent rate and the green low-carbon level of the system are greatly improved.

The invention relates to the technical field of heat supply systems, and provides a centralized heat supply system and a control method thereof.The centralized heat supply system comprises a centralized heat supply module and an energy module, and the energy module comprises an air heat exchange unit, a heat storage unit, a heat pump unit, a water dividing and collecting unit, a control valve set, a green power unit and a power distribution unit; the water dividing and collecting unit is connected with the air heat exchange unit, the heat storage unit and the heat pump unit and controls connection and disconnection between any two of the air heat exchange unit, the heat storage unit and the heat pump unit, the control valve set is connected with the heat pump unit, the heat storage unit and a primary network of the centralized heating module and controls connection and disconnection between any two of the heat pump unit, the heat storage unit and the centralized heating module, and a wire of the power distribution unit is connected with the green power unit and a municipal power grid. The power distribution unit supplies power to electric components of the energy module. Therefore, the central heating system can operate in the heating mode to supplement heat to the primary network and meet the heat utilization requirement of the secondary network, and can operate the heat storage mode by using the electric power generated by the green power unit in the non-heating season to realize cross-season heat storage so as to efficiently absorb renewable electric power.

The present application relates to the technical field of intelligent control of coal unloading machine, in particular to an intelligent coal unloading control system and method, in the present application, the environmental fusion perception unit fuses the coal pile point cloud data of the three-dimensional laser scanner and the texture information of the RGB-D camera, constructs a real-time digital twin model through hierarchical semantic segmentation, maps the coal pile surface morphology, spatial distribution and residual coal layer thickness in the stage of cleaning, the autonomous decision planning unit adopts a hierarchical optimization strategy, uses a heuristic space segmentation algorithm in the global layer to divide the coal unloading grid and plan the grab bucket, generates a spiral progressive cleaning trajectory of the adaptive cutting point based on the curvature gradient of the coal pile in the local layer, the dynamic posture adjustment unit collects the digging torque data, combines the coal pile thickness to build a coal quality hardness classification model, dynamically corrects the grab bucket cutting angle, digging depth and swing amplitude, and the closed-loop vibration suppression control unit generates a vibration suppression signal using the active damping controller of Lyapunov stability theory to achieve optimal energy consumption of the grab bucket.

The invention relates to the technical field of photovoltaic power generation power prediction. The invention provides a photovoltaic power abrupt change prediction method and a photovoltaic power abrupt change prediction system fusing space-time meteorological information. The method comprises the following steps: acquiring multi-source meteorological data of a distributed photovoltaic power station in a target area, and extracting spatio-temporal characteristics related to photovoltaic power; analyzing the space-time relevance between the photovoltaic output and the meteorological data, calculating a matching degree index, identifying the power station with the matching degree lower than the regional average level, and reconstructing the meteorological data of the power station; constructing a prediction model by adopting a long-short-term memory network, inputting reconstructed meteorological data and historical power, and dynamically updating parameters through an adaptive learning mechanism; predicting future power in a rolling manner according to a preset time step, and setting an abrupt change threshold to recognize weather abrupt change in real time; and based on a model output result, generating power probability distribution and a confidence interval by using Bayesian estimation, and optimizing a power dispatching strategy. The problems that space-time meteorological information cannot be effectively fused, the dynamic adaptability is poor and sudden change sensing is not timely in an existing photovoltaic power prediction method are solved.

The present application relates to a kind of mixed components, sludge coal-water slurry preparation system and its preparation method, which can be low-cost and efficient consumption processing of residual sludge after sewage treatment.Sludge coal-water slurry preparation system includes slurry mixing machine for mixing the coal powder and sludge slurry, slurry mixing machine is divided into coal processing device and sludge processing device 2 paths before setting respectively;Coal processing device includes crusher for crushing raw coal, vibrating screen in order according to its processing process, return device is arranged between crusher, vibrating screen for raw coal that has not passed through screen mesh hole is transported back to crusher;Sludge processing device includes slurry pulverizer for crushing sludge into sludge slurry;Produced coal-water slurry is more suitable for fluidized bed boiler combustion;Slurry preparation system before furnace can also save transportation and storage cost and its influence on surrounding environment.

The invention relates to the technical field of photovoltaic power generation, and provides a distributed photovoltaic short-term power generation power prediction method, system and device and a medium, and the method comprises the steps: obtaining foundation cloud picture time sequence data, historical power time sequence data and cluster distributed photovoltaic information of a target photovoltaic power station; performing feature extraction on the ground-based cloud picture time sequence data to obtain cloud picture feature time sequence data; according to the cloud picture feature time sequence data and the historical power time sequence data, performing power prediction based on a first prediction model to obtain a first prediction result; according to time-space coupling characteristic time series data obtained based on the cluster distributed photovoltaic information, the cloud coverage rate time series data and the cloud change rate time series data, performing power prediction based on a second prediction model to obtain a second prediction result; and performing weighted fusion on the first prediction result and the second prediction result to obtain a target prediction result. According to the method, the reliability, the stability and the accuracy of a short-term power prediction result in sudden-change complex meteorological scenes such as cloudy and cloudy and rainy scenes can be remarkably improved.

A subway-oriented LTE-TETRA Internet gateway and implementation method belong to the field of rail transit communication equipment: including power module, main control circuit, TETRA channel machine I, TETRA channel machine II, antenna I and antenna II; the power module supplies power for the main control circuit, TETRA channel machine I and TETRA channel machine II; the main control circuit is connected with TETRA channel machine I and TETRA channel machine II respectively; the TETRA channel machine I is connected with antenna I, and the TETRA channel machine II is connected with antenna II; the main control circuit is used for interacting with the AT command of TETRA channel machine I and TETRA channel machine II, SIP signaling analysis and audio processing; TETRA channel machine I and TETRA channel machine II are used for narrowband communication; the LTE wideband and TETRA narrowband can realize interconnection and intercommunication, and the stability of communication and the operation and maintenance of equipment in the complex environment of subway can be ensured.

The utility model belongs to the field of chemical production, and relates to a production system combining biomass carbonization and gasification with urea synthesis, which comprises a biomass carbonization unit, a charcoal gasification unit, a water gas shift reaction unit, an ammonia synthesis unit and a urea synthesis unit which are sequentially connected in series, the biomass carbonization unit comprises a biomass carbonization furnace; the biochar gasification unit comprises a biochar gasification furnace; the water gas shift reaction unit comprises a shift reactor and is used for converting carbon monoxide and water vapor in the combustible gas 2 into hydrogen and carbon dioxide through reaction; the ammonia gas synthesis unit comprises an ammonia gas synthesis tower; and the urea synthesis unit comprises a urea synthesis tower. According to the technical scheme, in a urea synthesis unit process, the problems that equipment is blocked by tar, the urea synthesis efficiency is influenced by deposition on the surface of a catalyst and the like are effectively avoided, and the production efficiency and the yield are improved.

The invention discloses a reusable rocket landing section fuel optimal thrust adjusting method and device and a storage medium, and the method mainly comprises the steps: constructing a one-machine section energy upper limit index as a three-machine section thrust adjusting criterion; continuously iteratively calculating and adjusting the three-machine-section engine thrust virtual throttling ratio, so that the one-machine-section energy upper limit index meets a preset threshold value requirement and is as small as possible; based on the optimized virtual throttling ratio obtained through iteration, three-machine-section thrust vector space synthesis is conducted in combination with the current attitude angle of the rocket; and after three machines are converted into one machine, one-machine-section thrust vector calculation and throttling ratio amplitude limiting are carried out through iteration. According to the method, on the basis of the form of combining energy analysis and analysis iteration, by adjusting the virtual throttling ratio of engine thrust online in real time and combining thrust closed-loop control, fuel optimal thrust control in the rocket landing process can be effectively completed, and safe and accurate landing of a rocket is ensured.

This invention discloses a high-glutathione-producing engineered Escherichia coli strain and its applications, belonging to the field of biotechnology; the engineered Escherichia coli strain is named ZMGSH01F, with accession number CCTCC M 20252236; the engineered Escherichia coli strain is based on Escherichia coli BL21(DE3) as the starting strain, with gene clusters knocked out. ptsH‐ ptsI‐crr And integrate at this site glf‐glk Fusion genes, knockout gene clusters gsiA‐gsiB‐gsiC Integrate the endogenous glutathione transporter gene at this site. cycDC Knockout of γ-glutamyltransferase gene ggt Simultaneously expressing the recombinant plasmid pRSFDuet- gshAB K177E‑E275K‑V513A - ppk2 The engineered Escherichia coli strain can efficiently produce glutathione through fermentation culture using glucose, monosodium glutamate, cysteine, and glycine as substrates.

This disclosure provides a power prediction method and system for new energy power plants based on energy storage collaborative optimization. By simultaneously collecting power, meteorological, and energy storage system operation data from the new energy power plant, and forcibly ensuring a certain proportion of energy storage features in the feature set, power prediction is deeply coupled with energy storage status. Through adaptive decomposition of the power sequence, each component is fused with a feature set containing energy storage information, providing a hierarchical and information-rich model input. The combined prediction model composed of a temporal convolutional network and a bidirectional gated recurrent unit achieves targeted prediction of different frequency fluctuation components. This disclosure provides support for stable grid operation and efficient new energy consumption, solving the problems of disconnect between the prediction model and energy storage system operation, and limited prediction accuracy.

The utility model discloses a kind of citric acid concentration evaporation crystallization drying devices, including citric acid pre-concentration tank, the inlet of citric acid pre-concentration tank is connected with the outlet of pre-concentration three-effect discharge pump, the outlet of citric acid pre-concentration tank is connected with the top feed inlet of one effect falling film evaporator by citric acid pre-concentration feed pump;Steam pipeline is connected with the inlet of steam jet pump by regulating valve, the outlet of steam jet pump is connected with the shell side inlet of one effect falling film evaporator;The lower portion of one effect falling film evaporator is communicated with one effect separator, and the bottom outlet of both is jointly connected the inlet of one effect discharge pump;The outlet of one effect discharge pump is connected with the top feed inlet of two effect falling film evaporator;The top outlet of one effect separator is connected with the suction port of steam jet pump and the shell side inlet of two effect falling film evaporator simultaneously.The device can improve product crystallization efficiency, shorten production cycle;Crystalline granularity is more uniform, high purity, and steam consumption is lower.