310 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 relates to the technical field of laser control, in particular to a laser power correction method and system. The laser power correction method comprises the following steps: acquiring an actual power value corresponding to an actual current value of a laser; fitting based on the actual current value and the actual power value to obtain a fitting broken line; wherein the fitting broken line comprises a plurality of fitting straight lines, and the fitting straight lines correspond to different power intervals of the laser; calculating a proportionality coefficient according to the fitting straight line and a proportionality coefficient calculation formula; according to the proportionality coefficient, a current correction value calculation formula and a power set value of the laser, a current correction value corresponding to the power set value is obtained through calculation, and the current correction value is stored. The current correction value is used as the driving current of the laser, so that the actual output power of the laser is the power set value of the laser, and the accuracy of the laser output power 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 provides a power determination method and device for a power battery, equipment and a storage medium, and the method comprises the steps: obtaining first state data of the power battery if a vehicle is in a driving working condition; determining first available power of the power battery according to the first state data and a power mapping table; determining second state data of the power battery according to the first state data, model parameters of the equivalent circuit corresponding to the power battery and the state data of the power battery; and performing correction processing on the first available power based on the second state data and a preset power correction parameter to obtain a first target available power of the power battery. The first available power is corrected through the second state data and the preset power correction parameter, and the influence of the second state data of the power battery in the actual use process on the maximum available power is considered, so that the obtained first target available power is close to the actual power capability of the power battery; and the safety and the dynamic property of vehicle driving are ensured.

The invention relates to a power correction method of an optical fiber laser, which comprises the following steps of: setting output power of the laser, and obtaining a power simulation curve; the laser is operated, N measured values of the output power of the laser are obtained, a power sampling curve is generated, and N is larger than or equal to 10; acquiring a power difference value between the power simulation curve and the power sampling curve; acquiring the compensation gain of the output power according to the power difference value; selecting a compensation mode according to the compensation gain; and correcting the working condition of the fiber laser according to the selected compensation mode so as to correct the output power of the fiber laser and reduce the error between the set power and the actual output power. Before long-term operation of the fiber laser, the deviation of the output power can be accurately identified, the working condition of the laser is correspondingly adjusted according to the compensation gain calculated by the power difference value, the method is executed regularly or as required, and the power of the fiber laser is stable after correction. The output power fluctuation caused by the influence of real-time factors such as return light and pump light in the optical fiber is avoided, and the method can correct the power of the optical fiber laser more accurately, stably and reliably.

The invention discloses a single-phase voltage-multiplying interleaving power correction circuit. The correction circuit comprises an alternating current power supply Ug, an inductor L1, an inductor L2, diodes D1 to D8, switching tubes S1 to S2, a capacitor C1, a capacitor C2, a capacitor C3 and a load RL, and the switched capacitor C3, the capacitor C1, the diode D7 and the diode D8 are respectively connected to form a switched capacitor circuit so as to form a voltage-multiplying structure. The advantages of the single-phase interleaving parallel technology and the voltage doubling rectifying circuit are combined, the multiple power converter units operate in an interleaving parallel mode, and voltage multiplication is achieved through the voltage doubling rectifying circuit. Compared with a traditional rectifier, the technology can effectively reduce the voltage stress of a power device, the input current THD and the size of an EMI filter through staggered parallel operation of a plurality of power converter units, thereby improving the overall performance and reliability of a system. Meanwhile, the voltage doubling rectifying circuit can be designed and adjusted according to requirements so as to adapt to different input and output voltage requirements.

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 powder recovery, in particular to a powder recovery system. The method can be implemented by the following steps: acquiring powder stress data of a current classification screen for screening and recycling the 3D printing powder at each historical moment in a historical recycling time period and powder stress data of the current classification screen at the current moment; determining the initial screening efficiency at each moment; determining the current relative screening degree at the current moment; the current screening fluctuation degree at the current moment is determined according to the difference between the powder stress data at the current moment and the powder stress data at the historical moment within the historical recovery time period; and a current power correction factor is determined, and based on the current power correction factor, the operation power of a servo motor used for controlling the current grading screen to shake at the current moment is adjusted. According to the powder screening and recycling device, powder screening and recycling are achieved, and therefore the powder screening and recycling efficiency is improved.

The invention provides a parameter correction method and device, a vehicle and a computer readable storage medium, and relates to the technical field of vehicle batteries, and the method comprises the steps: obtaining at least two groups of historical data of a battery pack; wherein each group of historical data comprises a historical accumulative charging amount, a historical accumulative discharging amount and a historical ampere-hour compensation value used for residual electric quantity correction; determining a target charging ampere-hour compensation coefficient and a target discharging ampere-hour compensation coefficient according to the at least two groups of historical data; under the condition that the compensation condition of the residual electric quantity is met, the residual electric quantity of the battery pack is corrected according to the target charging ampere-hour compensation coefficient, the target discharging ampere-hour compensation coefficient and the current accumulated charging quantity and the current accumulated discharging quantity of the battery pack. The method can improve the calculation accuracy of the remaining capacity of the battery pack.

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 provides an energy management method and system of a fuel cell vehicle and the vehicle, and relates to the technical field of vehicles. The method comprises the following steps: acquiring vehicle operation analysis data of a fuel cell vehicle; the driving power of the driving motor is calculated according to the bus voltage of the driving motor, the bus current accelerator opening degree information and the vehicle slope information; calculating the energy consumption power of other energy consumption systems according to the bus voltage of the power battery and the energy consumption information of other energy consumption systems; according to the vehicle running mode, the driving power correction coefficient and other power correction coefficients, the driving power and the energy consumption power of the driving motor are subjected to weighted correction, and the target vehicle demand power is determined; according to the current charge state value of the power battery, the target vehicle demand power and the vehicle driving mode, the electric pile demand power of the fuel battery is determined; and controlling the fuel cell to output power according to the required power of the electric pile. Therefore, the vehicle runs more efficiently, and the running cost is reduced.

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 an afterward market power correction method for an electric power spot market. The afterward market power correction method comprises the steps of obtaining data information of a target electric power market; after the target electricity market is cleared, judging whether the target electricity market on the current day needs post market power correction or not; re-clearing the target electricity market to obtain the clearing electricity price of each node of the re-cleared target electricity market in each time period; calculating the price influence contribution rate of each power generation group and determining the compensation amount of each power generation group; and calculating the return amount of each user in the power market, and completing afterward market power correction of the target power spot market. The invention also discloses a system for realizing the afterward market power correction method for the electric power spot market. According to the method, post market power correction for the electric power spot market is realized, safe and stable development of the electric power market and safe and stable operation of an electric power system are ensured, and the method is higher in reliability, better in accuracy, more objective and more scientific.

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 discloses an electric drilling machine grid-connected control method and system, and relates to the technical field of electric drilling machine control. Historical load change curves are constructed and classified, mark load change curves are extracted, driving power data are analyzed and determined according to drilling records of electric drilling machines of the same specification, and a reference depth power corresponding curve is constructed; after the driving power and depth data of the electric drilling machine are obtained in real time, a real-time depth power corresponding curve is constructed, and a template for power correction is selected; constructing a real-time load change curve, comparing the real-time load change curve with the mark load change curve, and determining a reference load change curve; power and load changes in a future preset time period are predicted by combining the template for power correction and the reference load change curve, and the time duration of power change is adjusted accordingly, according to the technical scheme, high efficiency and optimization of grid-connected control of the electric drilling machine are achieved, and stable operation of drilling operation and safe operation of a power grid are ensured.

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.

A method and an apparatus are provided in which a first signal is received at a bi-directional coupler of an antenna path. A first power, delivered to an antenna of the antenna path, is measured based on a second signal corresponding to a forward signal provided from the bi-directional coupler to the antenna and a third signal corresponding to a reverse signal reflected back to the bi-directional coupler from the antenna. A power correction value is determined based on a ratio of the second signal to the third signal and a one-to-one relationship of the ratio to a load reflection coefficient of the antenna. A second power delivered to the antenna is determined based on the first power and the power correction value.