244 results about "Power correction" patented technology

The invention relates to the technical field of BMS control, and discloses a power battery BMS control temperature equalization method and device, and the method comprises the steps: carrying out the collection and thermodynamic characteristic analysis of the temperature data and heat loss power of N single batteries in a power battery pack, and obtaining the dynamic characteristic parameters of the temperature of the battery pack and a temperature field distribution prediction track; performing estimation compensation on thermal coupling interference and temperature measurement noise among the battery monomers to obtain actual temperature data of each battery monomer; performing battery pack temperature mean value calculation on the actual temperature data of each battery monomer, generating a temperature equalization target track, and performing multi-target optimization solution to obtain a temperature equalization control quantity of each battery monomer; and calculating the target heat dissipation power of each battery monomer, and outputting a regulation and control instruction of a radiator of each battery monomer. According to the invention, through real-time adjustment of the heat dissipation power correction coefficient, reasonable distribution of heat dissipation resources is realized, and the heat dissipation efficiency and the temperature equalization effect are improved.

The invention discloses an operation collaborative optimization method for an optical storage direct current flexible interaction system. Comprising the steps of collecting operation data such as photovoltaic output, an energy storage state, household load power and direct current bus transmission power, fusing power market price information, and constructing a multi-dimensional time series data set; then, predicting an adjustable load capacity interval of the system based on a coupled physical constraint neural network model embedded with DC bus power balance, voltage constraint and equipment operation limitation; further constructing a state-action space, solving a Pareto frontier by adopting a multi-objective optimization algorithm, and generating a light storage and home load collaborative scheduling strategy set; then combining the real-time operation state and the prediction deviation information, applying a voltage-power droop control mechanism to carry out strategy decoupling, and generating an energy storage power correction amount and a flexible load priority control instruction; and finally, a control instruction is issued to the optical storage direct flexible system, so that collaborative optimization operation with consideration of economical efficiency, safety and comfort of the system is realized.

The invention relates to the technical field of resource optimization aggregation regulation and control, and particularly discloses an optimization aggregation regulation and control method and system capable of adjusting load resources, and the method comprises the steps: analyzing the environment state of a to-be-adjusted region, determining a resource aggregation regulation and control deviation factor, analyzing the power grid state and power grid weakness characteristics of the to-be-adjusted region, and determining a resource aggregation regulation and control deviation factor; and obtaining a resource aggregation regulation response factor, determining a resource aggregation regulation response priority category and a response duration category of the to-be-regulated region, obtaining regulation scale data of the to-be-regulated region, and judging whether load peak shifting and load power correction need to be performed on the to-be-regulated region or not. The problems that a traditional centralized regulation and control mode is difficult to adapt to the flexibility and complexity of distributed loads, and an existing regulation and control method is insufficient in consideration of load characteristics and influence characteristics and cannot achieve accurate regulation are solved. The utilization rate of power generation equipment is increased, and efficient utilization of energy is promoted. And new energy power generation fluctuation can be smoothed, and the access proportion of renewable energy sources can be improved.

The invention relates to the technical field of power control strategy analysis, and discloses a carbon electricity energy storage power control strategy analysis method and system considering multi-source-load cooperation. The method comprises the following steps: performing power balance analysis processing on a source-load power cooperation characteristic matrix under carbon emission constraint to obtain a power scheduling initial solution of the carbon electricity energy storage system; performing source-load collaborative optimization processing on the power scheduling initial solution to obtain a test power optimization sequence; performing energy storage capacity distribution processing on the power optimization sequence to obtain a charging and discharging power instruction set; and performing power correction processing on the charging and discharging power instruction set under the carbon emission cost constraint to obtain an energy storage scheduling strategy, and performing multi-target collaborative optimization processing to obtain a carbon electricity energy storage power control strategy. According to the method, under the condition of considering the carbon emission constraint, accurate extraction and multi-target collaborative optimization of the source load power characteristics are realized, so that the power control performance of the carbon electricity energy storage system is improved.

The invention provides a ship power failure early warning and diagnosis system and a method thereof, and relates to the technical field of power measurement, a power belief network of a target ship power grid is constructed according to a topological connection relationship among different cable sections in a target ship, and association confidence among nodes in the power belief network is determined; performing measurement deviation estimation on the first power data of different cable sections, when an estimation result is judged to be abnormal, correcting the first power data through a power belief network to obtain power correction data, and determining a transaction coefficient of the target ship power grid according to the association confidence and the power correction data; and when the transaction coefficient is greater than a preset transaction threshold, predicting a fault state of each cable section according to the second power data and the power correction data to obtain a fault response value of the cable section, and performing partition diagnosis on the target ship power based on each fault response value. Therefore, the power fault diagnosis precision is improved.

The invention discloses a starting control method, system and device for a range extender of a range-extended electric vehicle and a medium. The method comprises the steps that the electric quantity of a power battery and a preset starting electric quantity threshold value are obtained; when the electric quantity of the power battery is smaller than or equal to the starting electric quantity threshold value, a corresponding DC-DC output limiting strategy is determined according to the electric quantity of the power battery, and DC power utilization limiting is conducted on the vehicle according to the DC-DC output limiting strategy to obtain DC-DC optimized output power; determining target starting power according to the current working condition of the range extender and a pre-constructed starting power correction table of the range extender; and obtaining the currently allowed maximum discharge power of the power battery, performing power optimization control on the thermal management accessory according to the DC-DC optimization output power, the target starting power and the maximum discharge power, and starting the range extender according to the target starting power. The range extender can be safely started in the low-electric-quantity state of the power battery, the endurance performance and battery safety of the vehicle are guaranteed, and the method can be applied to the technical field of vehicle control.

The invention discloses a non-contact power supply three-stage control system based on series redundancy, and belongs to the field of non-contact power supply control. Comprising a power correction module, a voltage conversion module, a full-bridge inversion module, a cooperative control module, an analysis adjustment module, a monitoring switching module, a simulation maintenance module, a communication security module, a remote interaction module, an energy efficiency optimization module and a diagnosis recording module. High conversion efficiency can be dynamically kept under different loads and working conditions, energy loss is reduced, electric energy quality is remarkably improved, damage and misoperation under abnormal working conditions are prevented, high-reliability continuous power supply is achieved, PID parameters can be dynamically adjusted or direct control quantity can be generated, the system adapts to complex and changeable operating environments, and failure rate and shutdown loss are reduced.

The invention relates to the technical field of graphene electric heating floor heating, and discloses a graphene electric heating floor heating intelligent temperature control system and method.The system comprises an area temperature recognition module, an instruction analysis module, an energy consumption division module and the like; the thermal field monitoring module collects basic temperature data, a real-time power curve and thermal imaging data, the energy consumption division module judges the temperature and energy consumption grade, the temperature control strategy module generates a dynamic adjustment strategy according to the grade, and the temperature difference judgment module and the path correction module achieve power correction and path optimization. And the thermal field analysis module is combined with the user terminal to early warn abnormity and visualize thermal imaging data. According to the scheme, regional refined temperature control, dynamic energy consumption management and intelligent path planning are achieved, the heating comfort level and the energy utilization rate are improved, and the method is suitable for intelligent temperature control scenes of graphene electric floor heating.

The invention relates to a krylov subspace dimensionality reduction electric power flow calculation solving system, and the system comprises a power balance module which is used for forming an n-dimensional linear power balance equation set based on a Jacobian matrix and a power unbalance matrix; the krylov subspace dimension reduction solving module is used for carrying out iterative calculation on the n-dimensional linear power balance equation set by utilizing the standard orthogonal basis after orthogonalization calculation to obtain a power correction approximate optimal solution in the m-dimensional subspace; and the double linked list matrix compression and storage module is used for being responsible for matrix operation during iterative calculation of the krylov subspace dimension reduction solving module, and the matrix operation is performed based on matrix partitioning. According to the method, the calculation speed of existing power flow calculation solution can be increased, and the calculation efficiency and the resource utilization rate are improved.

The invention relates to the technical field of modular control systems, in particular to a transformation and cooperative operation method and system for a modular control system of a wire barrow, and the method comprises the following steps: obtaining tension data, calculating a change rate, comparing a critical interval related torque, calculating a power correction value, taking a position difference vector, calculating a deviation angle, and comparing a correction steering parameter; according to the method, the tension change rate is obtained to achieve dynamic trend recognition, the torque control response precision is improved, driving and steering parameters are comprehensively judged through the speed, the path deviation and the position difference vector, the advancing stability and the path consistency are improved, and the method has the advantages of being simple in structure, convenient to operate and high in practicability. Guiding deviation and steering correction comparison is combined, guiding precision is enhanced, an adjusting instruction is generated based on the real-time distance and the advancing direction, torque proportion correction is linked, it is guaranteed that the multi-vehicle distance is stable, signal fusion and real-time feedback improve the adaptability to interference and path changes, and the flexibility and safety of collaborative operation are enhanced.

A motor control device is provided in a vehicle equipped with a plurality of motors connected to a battery. The motor control device includes processors corresponding to the motors respectively. Each of the processors derives first power, derives second power, transmits information indicating the second power to another processor, acquires information indicating the second power derived by the another processor, derives third power, acquires fourth power, acquires a power limit value of the battery, derives a control power limit value, distributes the control power limit value to the motor corresponding to the own processor based on an axle torque ratio of the plurality of motors, derives an individual power limit value of the battery for the motor, derives a power correction amount of the first power, corrects the torque instruction value of the motor corresponding to the own processor, and operates the motor according to the corrected torque instruction value.

The invention discloses a new energy automobile charging process inspection, diagnosis and charging integrated system, and relates to the technical field of new energy automobile charging control. The system comprises a central analysis module and a plurality of chargers connected with the central analysis module. The method comprises the following steps: collecting environmental data in real time through a charger, combining the environmental data with a battery state by a battery management module, and matching a power correction coefficient based on a lookup table or an artificial intelligence model to determine a target power upper limit; meanwhile, the central analysis module groups the chargers according to target power upper limit change and distributes the surplus capacity of the power station in proportion; according to the method, power is corrected through two dimensions of environment and battery state, limitation of single parameter correction is avoided, safety risks of coupling of an extreme environment and battery aging are effectively avoided, and charging safety is guaranteed; power is distributed according to dynamic grouping and proportion, the problem of capacity waste or overload of traditional unified distribution is avoided, and the capacity utilization rate of the charging station is improved.

The invention relates to the technical field of thermal power generation, in particular to a closed circulation cold end optimization method, device and system, and the method comprises the following steps: obtaining the historical operation data of a unit from a power plant monitoring information system, the data comprises circulating water flow, circulating water inlet temperature, circulating water outlet temperature, condenser backpressure water pump motor current, generator power, medium and low pressure heat supply steam flow, condenser steam-water temperature and condenser water inlet and outlet pressure; s2, performing abnormal value processing on the data obtained in the step S1, namely screening out an abnormal value, and repairing and filling the abnormal value by using an interpolation method; based on the actual condition of the power plant, the unit load and the steam admission amount of the condenser are fitted through a large amount of historical data in the step S2; the total power for starting different numbers of circulating water pumps and fans and the water flow corresponding to the circulating water pumps are determined according to the historical data in the step S2; respectively establishing a condenser model and a cooling tower model; constructing a circulating cooling system model, coupling the condenser model and the cooling tower model, carrying out iterative calculation until convergence or reaching the maximum number of iterations, and obtaining the condenser outlet water temperature, the cooling tower outlet water temperature, the condenser back pressure, the vacuum degree and the power generation power; fitting a correction coefficient curve by referring to the technical specification of a power plant and combining the historical data in the step S2 with the condenser backpressure-generated power correction coefficient graph; and calculating the generated power and the net output power according to the unit load and the auxiliary machine consumption, and outputting an auxiliary machine configuration scheme corresponding to the maximum net power.

The invention discloses a network construction type power synchronization control method and device, electronic equipment and a storage medium, which are used for solving the technical problem that the current network construction type power electronic equipment power control means cannot completely eliminate the negative sequence active power influence and the control effect is poor. The method comprises the following steps: acquiring a three-phase electric signal of the network construction type power electronic equipment; positive and negative sequence separation decoupling based on a double-second-order generalized integrator is carried out on the three-phase electric signal to obtain a dq-axis positive and negative sequence electric signal; calculating positive and negative sequence active power according to the dq-axis positive and negative sequence electric signals; and performing power synchronous control considering negative sequence power correction according to the positive and negative sequence active power, and outputting the frequency and the phase angle of the network construction type power electronic equipment.

The invention provides a topology circuit of a high-voltage acceleration power supply, a control method and a high-voltage accelerator, and relates to the technical field of power supplies. The topology circuit comprises a PFC circuit, an LLC resonance circuit and a voltage doubling rectifying circuit. The pre-stage PFC circuit rectifies the input alternating current mains supply, suppresses harmonic waves, reduces ripples, and improves the power correction factor of the high-voltage acceleration power supply; the inverter circuit of the intermediate-stage LLC resonant circuit has a soft switching function, high frequency of a power conversion device can be realized, a resonant cavity limits the change rate of voltage and current in the switching process, the switching noise is reduced, and energy is transmitted to a load through a transformer and a voltage doubling rectifying circuit. The PFC circuit and the LLC resonance circuit are simple in structure and control, on the premise that the number of circuit devices is reduced, input voltage and current are in the same phase, the operation efficiency of the circuit is improved, the size of the high-voltage acceleration power supply is effectively reduced, and the power density is improved.

The invention provides a power distribution method, device and equipment of an electricity-hydrogen hybrid energy storage system and a medium, and belongs to the technical field of energy storage. The electricity-hydrogen hybrid energy storage system comprises a super capacitor, a lithium battery and a hydrogen energy storage subsystem, and the method comprises the following steps: decomposing the total regulation power of the electricity-hydrogen hybrid energy storage system to obtain high-frequency power, intermediate-frequency power and low-frequency power; correcting the high-frequency power according to a first charge state value of the super capacitor to obtain a first power correction value and a first optimal adjustment power of the super capacitor; according to the first power correction value and a second charge state value of the lithium battery, correcting the intermediate frequency power to obtain a second power correction value and a second optimal adjustment power of the lithium battery; and correcting the low-frequency power according to the second power correction value and the health state value of the hydrogen energy storage subsystem to obtain third optimal adjustment power of the hydrogen energy storage subsystem. The energy utilization rate and the operation stability of the electricity-hydrogen hybrid energy storage system can be improved.

The invention relates to an active power factor correction device, in the active power factor correction device, an average current controller and a feed-forward compensation controller are respectively used for obtaining a first duty ratio and a second duty ratio, a duty ratio processor is used for superposing the first duty ratio and the second duty ratio to obtain a total duty ratio, the pulse width modulation controller is used for generating a pulse width modulation signal for controlling the switching device according to the total duty ratio, the second duty ratio is related to the sum of inductive currents sampled for multiple times in a power frequency period, and the sum of the inductive currents changes along with the load power of the main circuit. Therefore, the second duty ratio can reflect the dynamic change of the load power, the total duty ratio is obtained by superposing the first duty ratio and the second duty ratio, the feedback can be enhanced when the load power changes, and compared with the control by only using the average current method, the control capability on the output voltage and the input current is improved, and the control efficiency is improved. And a better power correction effect can be realized.

The invention relates to a unified distributed dynamic optimization control method and device for a micro-grid in an autonomous station area, and the method comprises the steps: embedding a frequency regulator at a virtual synchronous converter, estimating the average frequency of the autonomous micro-grid through the frequency regulator, comparing the average frequency with a rated frequency to generate an error term, and calculating the optimal value of the error term; inputting the error term into an integrator to obtain a first power correction term; embedding a benefit optimizer at the virtual synchronous converter, generating a neighborhood error through the benefit optimizer, and inputting the neighborhood error into an integrator to obtain a second power correction term; and adding the first power correction item and the second power correction item with a reference power item to obtain a power setting item, and taking the power setting item as the input of the virtual synchronous converter. According to the invention, stable voltage and frequency support can be provided, and global optimal control is realized.

The invention relates to the field of power system distribution network load adjustment, and discloses a control method and system for global power supply quality reconstruction of a long-power-supply-radius transformer district, and the method comprises the steps: calculating the capacity and position of a device based on voltage and distance parameters; collecting data to execute fuzzy control, and adjusting the electric energy flow direction; when the voltage is lower than a threshold value, closed-loop regulation is started to compensate a voltage gap; the power is adjusted on hour, and a rolling optimization strategy is executed; power is adjusted according to real-time data, and electric energy quality is guaranteed; the system comprises a voltage acquisition module, a voltage gap analysis module, an energy storage state monitoring module, a time monitoring module, a control module, an energy storage system and a photovoltaic power generation system. The SOC deviation calibration strategy based on the on-hour rolling mechanism is introduced, the target energy storage electric quantity dynamic comparison and power correction function is combined, the system operation state can be adjusted in real time in each on-hour period, and the electric quantity matching precision and strategy self-consistency in the operation process are remarkably improved.

The invention relates to the technical field of photovoltaic power supply management, and discloses a photovoltaic parking building power supply management method, device and system, and a storage medium. The method comprises the steps of determining real-time irradiation and component temperature data of a parking building ceiling photovoltaic component matrix, calculating an actual light receiving area according to component surface shadow distribution, and generating a photovoltaic output power correction parameter in combination with a historical attenuation coefficient; constructing a photovoltaic power generation capacity fluctuation sequence in unit time based on the parameters, identifying a power generation capacity decline time period and a power output gap, and marking the power generation capacity decline time period and the power output gap as a power supply unstable interval; according to the interval time sequence distribution, matching real-time load demand data of the charging piles in the building, calculating the power difference between the load demand and the power generation capacity, and generating a priority power supply sequence table; and dynamically distributing photovoltaic power to charging loads with different priorities according to the sequence table, adjusting charging and discharging threshold values of the building energy storage system, and generating a photovoltaic power dispatching instruction. The method can accurately evaluate the power generation capacity, respond to power generation fluctuation and optimize power distribution.

The invention discloses an energy storage system and a method for correcting the collected power of an electric meter of the energy storage system. The method for correcting the collected power of the electric meter of the energy storage system comprises the following steps of S1, controlling the i-th phase independent output power of an inverter; s2, the ammeter collects the voltage, current, active power and apparent power of each phase of the power grid, and calculates the absolute value of the power factor of each phase of the power grid according to the active power and apparent power of each phase; s3, determining the CT wiring condition of the ammeter according to the absolute value of the power factor of each phase of the power grid; and S4, correcting to obtain the real apparent power and the real active power of the ith phase of the power grid by combining the voltage and the current of each phase of the power grid and the CT wiring condition of the electricity meter. According to the energy storage system and the ammeter acquisition power correction method thereof, the CT wiring condition is identified through the absolute value of the power factor, and correct power data can be directly recovered.

The invention relates to the technical field of power regulation, in particular to a refrigeration control strategy optimization method based on cooling capacity storage and electricity price change, which comprises the following steps of: generating an energy efficiency parameter correction result by collecting a cooling capacity and refrigerant temperature difference, calculating a cooling capacity demand and a cooling capacity difference value and combining real-time electricity price and energy efficiency parameter normalization; the method comprises the steps of calculating a difference value between a cooling capacity demand and a refrigerating capacity, analyzing a power correction coefficient and an electricity price section, setting a cold storage instruction and a cold release instruction, adjusting a cold storage or cold release strategy in combination with an electricity price trend, generating an electricity price response control strategy set, and optimizing cold storage power adjustment, and comprises the steps of calculating a difference value between the cooling capacity demand and the refrigerating capacity, combining real-time electricity price and energy efficiency parameter normalization and fitting an energy efficiency parameter correction result; based on electricity price segmentation analysis, a proper cold storage or cold release instruction is set, the energy efficiency of equipment in a peak-valley electricity price interval is improved, the electricity price trend is analyzed to adjust a cold storage or cold release strategy, energy consumption waste is avoided, finally, the electric energy utilization efficiency is improved, the cost is reduced, and the flexibility and adaptability of a refrigeration trolley are enhanced.

The invention discloses an electric vehicle hybrid energy storage system energy management method fused with a Hemma particle swarm algorithm LSTM, and the method comprises the steps: constructing a multi-layer LSTM neural network controller to learn the characteristics of a driving condition, and minimizing the stress of a battery; constructing a fractional order integral derivative (FOID) controller, outputting a power correction component, and decomposing the component into a battery power reference component and a supercapacitor power reference component; according to the method, an improved He-Marx particle swarm algorithm is utilized, LSTM weight and FOID controller parameters are optimized in a combined mode through a multi-objective optimization function (including battery root-mean-square current and voltage errors), optimization training is carried out on the weight and bias of a neural network controller, and power distribution between a battery and a supercapacitor in the hybrid energy storage system of the electric vehicle is controlled in real time; an LSTM power distribution result is adaptively corrected through a dynamic weight mechanism, and bus voltage fluctuation is controlled within a range of + / -3%; and the final power reference value is synthesized through dynamic weighting, so that the peak current of the battery is remarkably reduced.

The invention relates to the technical field of charging quantity metering, and provides a charging quantity metering error high-precision calculation method for a charging station, and the method comprises the steps: collecting the charging quantity and the cumulative operation time of charging equipment of the charging station, and the battery charge state, the charging voltage, the charging current, the environment temperature, the charging temperature and the charging power in the working process of the charging station; respectively defining an input matrix, a process noise matrix, a state transition matrix and an input vector at each data acquisition moment, and determining a state vector at each data acquisition moment; calculating observation power at a data acquisition moment and processing the observation power by using Kalman filtering to obtain an optimal state vector and a theoretical power correction value at the data acquisition moment; and according to the charging amount, the charging power and the battery charge state directly displayed by the charging equipment at all the acquisition moments, obtaining metering errors of the charging amount of the charging station at all the acquisition moments. The invention aims to improve the charging quantity metering precision of the charging station.

The invention belongs to the field of power distribution networks, and particularly relates to a distributed photovoltaic cluster coordination control method, device and equipment and a storage medium, and the method comprises the steps: obtaining the photovoltaic state data of each node in a photovoltaic cluster, and inputting the photovoltaic state data into a pre-established enhanced containment control model; a pinning node is selected from all the nodes, and an optimal action value is selected for realizing pinning control for a pinning consistency algorithm through a greedy control strategy of a reinforcement learning algorithm adopted by the reinforcement pinning control model; and executing greedy action on the contained nodes based on a contained consistency algorithm, and taking the optimal action value as a control instruction to coordinate each node of the photovoltaic cluster. Through the reinforcement learning and containment control method, the power correction can be quickly and accurately generated, and the inter-group interaction power is optimized, so that the system frequency and the bus voltage are stabilized near rated values, and the reactive elastic support capability of the distributed photovoltaic cluster in the peer-to-peer control mode is improved.

The invention relates to the technical field of power system automation, and discloses a cooperative control method, system and device for inverters in a power distribution area and a medium, and the method comprises the steps: carrying out the identity authentication of the inverters in the power distribution area through constructing a distributed authentication platform, and constructing a logic neighbor network of the inverters; determining the operation capability of the inverter according to the physical constraint and power operation data of the inverter, and constructing a multi-time scale coordination framework according to the real-time demand of the power distribution area to determine a bidding strategy set of the inverter; constructing a transformer area clearing model considering the safety of the power distribution transformer area, and solving the transformer area clearing model according to the logical neighbor network and a distributed optimization algorithm to obtain a power control instruction of an inverter; the distributed authentication platform monitors the operation state of the power grid in the power distribution area, and when the risk is triggered, a security check algorithm is started to correct the power control instruction, and a power correction instruction is obtained to control the inverter to execute; and under the condition of considering the safety and the cost, the refined cooperation of the district level is realized.

The invention relates to the technical field of charging pile charging control, in particular to a flexible charging regulation and control system and method for a charging pile, and the method comprises the steps: obtaining real-time service parameters of the charging pile; calculating a stress accumulation item and a stress dissipation item; the equivalent lithium ion concentration stress of the current period is obtained through updating in combination with the stress accumulation item and the stress dissipation item; calculating a stress suppression item; generating a correction function; generating a dynamic current limit value by combining the stress suppression item, the correction function and a preset reference maximum allowable current; resolving a request current based on the power grid power instruction and the battery terminal voltage; generating a scheduling feasibility index in combination with the request current and the dynamic current limit value; according to the scheduling feasibility index, hierarchical power correction is executed, and actual issuing power is output; according to the invention, the operation safety of the battery is greatly improved, and the overall value of battery assets is greatly prolonged.

The application discloses a laser cutting thermal deformation suppression method and system integrated with temperature control feedback, and a medium, relates to the technical field of laser cutting, and comprises the following steps: according to the driving power supply of a laser and a preset cutting task, a first power instruction is issued to the driving power supply to provide constant current driving; under the first frequency response requirement, the cutting molten pool temperature is collected, power correction analysis is carried out according to the preset target temperature interval, a first power correction signal is generated, the output power of the laser is dynamically adjusted, and the cutting speed, the auxiliary gas flow or the cooling intensity are cooperatively adjusted; under the second frequency response requirement, the local temperature field distribution of the workpiece is collected, the thermal accumulation degree of the thermal influence area is analyzed, and the decision and control of the skip area, the speed adjustment or the cooling gap are executed. The application solves the technical problem of thermal deformation caused by inaccurate temperature control in the laser cutting process in the prior art, and achieves the technical effects of effectively suppressing thermal deformation, improving cutting quality and precision in the laser cutting process.

The application discloses a power following compensation correction control method for a range extended electric vehicle, and steps are as follows: S1, power correction: initial demand power generation is calculated, and final power generation is obtained by correction according to current atmospheric pressure, SOC and load compensation; S2, speed correction: first correction power generation speed and power generation torque between maximum and minimum values are calculated, second correction power generation speed and simulation speed are calculated and accumulated, and final power generation speed is obtained together with preset maximum power generation speed; S3, torque correction: initial power generation torque is calculated according to final power generation and final power generation speed, feedforward correction torque is calculated according to feedforward compensation control, and finally, final power generation torque is obtained. The application also discloses a power following compensation correction control device and a computer system for the range extended electric vehicle. The application can ensure good driving following property under the premise of optimal fuel consumption and NVH performance, and can be widely applied in the field of the range extended electric vehicle.

A single-phase voltage-doubler interleaved parallel power correction circuit, the correction circuit comprising an AC power supply U g , inductance L1, inductance L2, diode D1-D8, switch S1-S2, capacitor C1, capacitor C2, capacitor C3, load R L ; switch capacitor C3, capacitor C1, diode D7, diode D8 are connected to constitute a switch capacitor circuit, forming a voltage doubling structure. The present application combines the advantages of single-phase interleaved parallel technology and voltage-doubler rectifier circuit, through multiple power converter units interleaved parallel operation, and adopts voltage-doubler rectifier circuit to realize voltage multiplication. Compared with the traditional rectifier, this technology can effectively reduce the voltage stress of power devices, input current THD and the size of EMI filter through multiple power converter units interleaved parallel operation, thereby improving the overall performance and reliability of the system. At the same time, the voltage-doubler rectifier circuit can also be designed and adjusted according to the needs to adapt to different input and output voltage requirements.