5results about How to "Solve overload" patented technology

This invention discloses a comprehensive energy operation simulation method and system based on multi-objective optimization, belonging to the field of energy technology, aiming to solve the problems of equipment overload and discontinuous power supply caused by supply and demand imbalance under extreme climate conditions. The method establishes a multi-objective collaborative optimization model based on the renewable energy types and seawater desalination load characteristics of the island microgrid. An improved NSGA-III algorithm is used to simulate the model and generate a scheduling scheme, including the start-up and shutdown sequence of the hydrogen production equipment. When a typhoon warning signal is received, the seawater electrolysis hydrogen production equipment is forcibly locked, and the output power of the diesel generator is fixed within a preset range. During the operation of the hydrogen production equipment, the output fluctuation data of the wave energy generator is collected in real time, and the operating power of the reverse osmosis seawater desalination unit is adjusted through a dynamic correction algorithm. When the hydrogen storage capacity of the hydrogen production equipment reaches a threshold, the power lock of the diesel generator is released, switching to a multi-energy coupling control mode, and the charging and discharging strategy of the energy storage equipment is updated synchronously.

The present application relates to a kind of virtual synchronous machine-based flexible direct current converter, control method and system, belong to electrical engineering technical field.When AC system fails, the active limiting coefficient, reactive limiting coefficient and current limiting coefficient are obtained by AC voltage amplitude;The upper and lower limits of the active power reference value of the active virtual speed control loop of virtual synchronous machine control are obtained by multiplying the positive and negative active limiting coefficients with the rated power of converter respectively;The upper and lower limits of the reactive power reference value of the reactive droop control loop of virtual synchronous machine control are obtained by multiplying the positive and negative reactive limiting coefficients with the upper limit of system reactive output respectively;The upper limit of the current reference value of the current inner loop of virtual synchronous machine control is obtained by multiplying the current limiting coefficient with the maximum allowable current setting value in normal operation.Make the converter also be able to run in network configuration type control mode during fault, play the maximum operating capacity of equipment to support AC power grid transient and steady-state stable operation.

The utility model relates to a novel horizontal coffee brewing device, including two mounting plates, the outer surface of one mounting plate is provided with two motor interfaces, is connected with the built -in motor of coffee machine, can reduce motor damage, the outer surface of another mounting plate is provided with handle, the dismounting and installation of brewing device are convenient, two mounting plates are provided with feed cavity and fixed plunger assembly respectively, the movable plunger is provided in feed cavity, fixed plunger assembly includes fixed plunger, transmission wheel, synchronous belt, transmission shaft, bearing and filter screen, through the cooperation of transmission wheel, synchronous belt, transmission shaft, bearing and fixed plunger, can drive the rotation of filter screen on transmission shaft while carrying out powder pressing in brewing device, thereby drive coffee powder to fill up the space surrounded by fixed plunger assembly, movable plunger and brewing cavity evenly, can prevent coffee powder from accumulating at the bottom of brewing device and movable plunger, improve the uniformity and powder pressing quality of powder.

The application discloses a data processing method and device, computer equipment and a storage medium. It belongs to the technical field of data processing. The method can specifically include: in response to a first data processing request carrying a data processing requirement sent by a user end, forwarding the first data processing request to a business management device. Receiving a distribution node identifier of a target distribution node sent by the business management device. Based on the distribution node identifier and the data processing requirement, selecting a target processing node from candidate processing nodes associated with the target distribution node. Controlling the target processing node to process the to-be-processed data. In the application, the target distribution node can be automatically determined according to the first data processing requirement and the business management device, and then the target processing node is determined based on the first data processing request. The to-be-processed data is processed based on the target processing node. The application not only solves the problem that a fixed processing node may cause excessive node load, but also effectively improves the processing precision and processing efficiency.

A method for preventing the power failure of a power station with shaft generator by side thrust capacity reduction, first receiving the tripping signal of any one generator through the switchboard, and quickly sending the power limiting signal to the side thrust frequency converter to reduce the capacity. After receiving the capacity reduction signal, the side thrust frequency converter quickly reduces the speed. The side thrust frequency converter also monitors the DC voltage of its busbar. If the voltage drop is too large, it will also quickly reduce the speed. The specific speed reduction is triggered by the faster of the two commands. After speed reduction, the capacity is slowly increased to maintain the side thrust function to avoid affecting the safety of ship navigation. During the capacity increase process, the switchboard sends the remaining power signal of the power station. The side thrust receives the signal, gradually increases the capacity of the side thrust, and controls it within the remaining power of the power station. At the same time, the side thrust sends the side thrust power signal to the switchboard, so that the power station can accept the side thrust power in real time and update the remaining capacity of the power station, thereby ensuring the accuracy of the control.