12results about How to "Control output power" patented technology

This application provides a power distribution method and apparatus for a fuel cell hybrid power system. At the start time of the i-th maintenance duration, the i-th initial target power of the fuel cell is obtained. The i-th initial target power is determined based on the vehicle's total power demand before the start time and the first charge state of the high-voltage battery before the start time. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is greater than or equal to the power step size, then the i-th actual target power of the fuel cell is determined based on the historical target power within the (i-1)-th maintenance duration and the power step size. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is less than the power step size, the historical target power within the (i-1)-th maintenance duration is determined as the i-th actual target power of the fuel cell. Controlling the stepwise change of the actual target power can match the power consumption response rate of the fuel cell.

The invention discloses an offshore wind power peak regulation system meeting peak load based on methanol synthesis, and relates to the technical field of energy, the offshore wind power peak regulation system comprises an offshore synthesis platform, the offshore synthesis platform comprises an automatic power generation frequency modulation device, a PEMFC hydrogen production system, a DMFC power supply system, a methanol synthesis system and a computer control system, the computer control system is used for being connected with and controlling the automatic power generation frequency modulation device, the PEMFC hydrogen production system, the DMFC power supply system and the methanol synthesis system, the automatic power generation frequency modulation device is used for scheduling the output direction of current, and the methanol synthesis system and the PEMFC hydrogen production system are used for controlling conversion between electric energy and methanol. And the DMFC power supply system is used for transmitting electric energy generated by methanol combustion to a power grid through the automatic power generation frequency modulation device. The impact on a power grid caused by unstable power generation of the offshore wind plant can be avoided, meanwhile, the base load with the low economic value is converted into methanol with the high economic value, and the income of the offshore wind plant is increased.

The utility model relates to a chip temperature test experimental platform device, which comprises a machine body, and the machine body is provided with a test chamber, a pre-temperature chamber and an adjusting chamber which are separated by partition structures. The test chamber is used for testing the temperature of the chip; the pre-heating chamber is used for pre-cooling the chip when the chip is subjected to a low-temperature test; the adjusting cavity communicates with the exterior of the machine body through an exhaust fan, and the exhaust fan is an exhaust fan with the adjustable rotating speed. The testing chamber is communicated with the pre-warming chamber, the pre-warming chamber is communicated with the adjusting chamber, the testing chamber is provided with a first cold air inlet, and the pre-warming chamber is provided with a second cold air inlet. According to the technical scheme of the utility model, air flow can be accelerated by starting the exhaust fan, low-dew-point dry air is continuously input into the test chamber and the pre-heating chamber along with the first cold air inlet and the second cold air inlet, and the dew points in the test chamber and the pre-heating chamber can be rapidly reduced so as to reach the required dew point; therefore, the efficiency of reducing the dew points in the test chamber and the preheating chamber can be improved.

The invention relates to the technical field of energy storage, and provides a power control method, main control equipment and a storage medium, and the method comprises the steps: obtaining the feed network power of optical storage equipment and a feed network power limit value of the feed network power; determining a power adjustment value and an adjustment strategy of the optical storage device based on the feed network power and the feed network power limit value; and controlling the optical storage device to determine a first power limit value of the optical storage device based on the power adjustment value and the adjustment strategy, the first power limit value being used for limiting the output power of the optical storage device. By using the method, the feed network power of the optical storage equipment can be quickly adjusted to the feed network power limit value, the consumed time is short, and the method does not need to depend on a high-speed communication technology.

The invention discloses a micro-grid scheduling method and system, and the method comprises the steps: obtaining historical load data and meteorological data in a micro-grid, so as to build a load prediction model, and generating a load prediction value of the micro-grid according to the load prediction model; according to the load prediction value, power generation power distribution of different types of power generation units in the micro-grid is optimized; and generating a scheduling instruction according to the optimized power generation power distribution so as to control the output power of each power generation unit. By utilizing the embodiment of the invention, the power distribution of the power generation units can be optimized, so that a reasonable dispatching instruction is generated, the output power of each power generation unit is efficiently controlled, the operation efficiency and the economical efficiency of the micro-grid can be improved, the adaptability of the micro-grid to emergencies can be enhanced, and a foundation is laid for realizing the target of a smart grid.

A biomass-driven Stirling generator cogeneration system and a control method thereof, the system comprising a fuel distribution subsystem, a heat distribution subsystem and a power generation subsystem, the fuel distribution subsystem comprising a solid biomass particle feed port, a gas preheater, liquefied petroleum gas, and a first blower; the heat distribution subsystem comprising a second blower, a first combustion chamber, a second combustion chamber, a first waste heat recovery device, a second waste heat recovery device, a heat pipe, cooling water, and a residential heating system; the power generation subsystem comprising a Stirling generator, a power converter, an energy storage battery, and a residential power system. The method uses cooling water and a heat source to control the output power of the generator, adjusts the cooling water flow rate by the cooling water temperature error and the cooling water temperature error change rate, adjusts the flow rate by configuring a plurality of valves, and controls the heat source by changing the fuel mixing ratio and supply speed, so that the output power of the generator is controlled, ensuring that the power supply and heating demand of the user matches the system output.

This application relates to a control method for parallel operation of an energy storage converter and a generator set to withstand impact loads. The method includes: establishing a control framework for the energy storage converter based on the circuit topology of the energy storage converter and a rotating coordinate system DQ-axis voltage-current control method; connecting a voltage and frequency error droop loop in parallel to the current setpoint of the phase-locked loop current-source inverter within the energy storage converter control framework; and controlling the operation of the energy storage converter after the current loop using an SVPWM modulation strategy. This application achieves stable operation of the energy storage converter and the system, ensuring that when the system starts up with wind turbine-type impact loads, the converter participates in the stable control of the AC bus, dynamically and evenly distributes the impact current, enabling smooth load startup and operation; and dynamically adjusts the power of the energy storage converter in steady state, allowing the diesel generator set to operate at economical power.

The invention provides a power determination method, device and system and a bicycle, and relates to the technical field of bicycle control, the method comprises: in a first mode, acquiring first riding data in current riding, the first riding data comprising a speed of the bicycle and a torque applied to a pedal of the bicycle; the output power of a motor of the bicycle in the current riding process is determined on the basis of the feature vector and the first riding data in the current riding process, the feature vector is used for representing second riding data, and the second riding data comprises the first riding data and the output power of the motor; wherein the feature vector in the current riding is obtained by adjusting the feature vector on which the output power of the motor is determined in the historical riding, and the value of the average energy consumption corresponding to the adjusted feature vector is smaller than the actual value of the average energy consumption in the historical riding; the average energy consumption represents the ratio of the total energy consumption of the rider and the motor to the historical riding mileage.

The invention belongs to the technical field of communication, and particularly relates to a method and system for adjusting the output power of a TR module. The method comprises the following steps: S1, monitoring whether a TR module works currently or not; s2, if the TR module does not work currently, returning to S1, and if the TR module is working currently, executing S3; s3, converting the power level corresponding to the radio frequency signal output by the TR module into the actual radio frequency power of the TR module, and obtaining the standard radio frequency power of the TR module according to the temperature of the environment where the TR module is located and the working state of the TR module; s4, whether the difference value between the actual radio frequency power and the standard radio frequency power meets the RMS value range or not is judged; s5, if yes, returning to S1, and if not, acquiring a power supply voltage control signal according to the difference value; and S6, adjusting the output power of the TR module according to the power supply voltage control signal, and returning to S1. According to the invention, the power output of the TR module can be timely and accurately adjusted, and the environmental adaptability of the output power is effectively improved.

The application discloses a kind of radio frequency signal source output power control method, the method includes: the output power range of standard radio frequency signal source and the numerical control attenuation range of numerical control attenuator are divided to obtain multiple control regions, the boundary point of each control region corresponds an output power, a frequency and a numerical control attenuation quantity;Each control region is constructed standard corresponding relationship based on the numerical control attenuation quantity corresponding to the voltage control attenuator;Based on the standard corresponding relationship, target frequency and target power, control the radio frequency signal source to be controlled, can accurately control the power required by radio frequency signal source output, avoid the larger error of output power.

The utility model is applicable to the technical field of chemical fertilizer processing, and provides auxiliary agent dosage adding equipment which comprises a rack, a liquid storage tank is arranged at the top end of the rack, a water inlet pipe is fixedly communicated with the bottom of the liquid storage tank, a screw pump is arranged at the bottom of the water inlet pipe, and a water outlet pipe is arranged at the bottom of the screw pump. A water outlet pipe is arranged at the output end of the screw pump, and a control cabinet is installed on the machine frame. The liquid storage tank is arranged on the rack, so that an auxiliary used for being added into a chemical fertilizer is conveniently stored, the bottom of the liquid storage tank is communicated with the screw pump through the water inlet pipe, the auxiliary is conveniently and uniformly conveyed through the screw pump, it is ensured that the auxiliary and a basic chemical fertilizer are fully mixed, the layering or agglomeration phenomenon is avoided, and the consistency of each batch of chemical fertilizer is ensured; according to the invention, accurate control of addition of the auxiliary agent is realized, the accuracy of a formula is ensured, the labor intensity of workers is greatly reduced, operation and maintenance are easy, manual intervention is reduced, the production efficiency is improved, waste of the additive is avoided, and the use effect of the chemical fertilizer is improved.

The utility model relates to the technical field of livestock breeding, in particular to an automatic feeding trough for sheep breeding, which comprises a feed bin, a feeding mechanism, an automatic feeding trough and a console, the lower end of the feed bin is communicated with the feeding mechanism, a first motor and a rotating blade are arranged in the feeding mechanism, and a feeding roller discharge port is arranged below a feeding roller; an automatic feed trough is arranged below the discharging end of the feeding mechanism, a second motor and a transmission roller are arranged in the automatic feed trough, and the transmission roller is sleeved with a conveying belt in a transmission mode. The output power of the motor can be controlled through the console, the discharging speed of feed is further controlled, the feed is spread on the conveying belt through the feeding mechanism, a quantitative and timed scientific breeding mode is achieved, the meat and feed conversion ratio is increased, the length of the automatic feed trough can be increased, and the feeding efficiency is improved. The feeding requirements of multiple livestock fences can be met only by one machine, the frequency of manual feeding is reduced, the trough can be self-cleaned, and the workload and the breeding cost are effectively reduced.