35results about How to "Fast regulation" patented technology

The invention provides a method for linked control of an indoor machine and an outdoor machine of a precision air conditioner. The method is characterized by comprising the steps: acquiring a target refrigerating amount Qn of a compressor, target power W1 of the compressor, target power W2 of a condenser and target power W3 of an evaporator, according to an energy efficiency ratio function COP of the air conditioner, in a range of Qn (+/-a%+1), optimizing a target working frequency fn, a condensation temperature Tcn and an evaporation temperature Ten in a given range to obtain a target working frequency fnd, a target condensation temperature Tcnd and a target evaporation temperature Tend under the situation that the COP value is a maximum value, wherein a is a preset natural number; and adjusting a rotation speed N of the evaporator according to the target temperature difference at an inlet and an outlet of the evaporator, controlling the compressor to run at the target working frequency fnd, adjusting a rotation speed M of the condenser according to the target condensation temperature Tcnd, wherein the target temperature difference at the inlet and the outlet of the evaporator is deltat2-(Tend-Ten).

The invention discloses a stop-band coding-controllable surface plasmon transmission line and a control method thereof. The transmission line comprises a medium substrate, an artificial surface plasmon structure located on the front of the medium substrate, and a plurality of radio frequency high-resistance lines located on the back of the medium substrate; the artificial surface plasmon structurecomprises a first metal strip, two transition sections and a plurality of coding artificial surface plasmon units; two transition sections are located at two ends of the transmission line and connected with gradually changed coplanar waveguide structures; the transition sections are connected with the first metal strip and symmetrically arranged at two sides of the first metal strip; the coding artificial surface plasmon units are located between the transition sections and corresponding to the radio frequency high-resistance lines on the back of the medium substrate one by one; each coding artificial surface plasmon unit is provided with a variable capacitance diode, and connected with the first metal strip and the radio frequency high-resistance line on the back of the medium substrate.A multichannel radio frequency signal synchronous modulation function is realized, and the multi-path channel information transmission function is finally realized.

The invention relates to a container-type comprehensive ecological farm, which comprises a container body; a channel which is arranged in the container body in its length direction and penetrates twoends of the container body; one side of the channel is provided with a fish box for farming fish, and the upper end of the fish box is provided with a culture medium; one end of the fish box is provided with a circulating water processor, and one end, far away from the fish box, of the circulating water processor is provided with a hydroponic device; the circulating water processor is communicatedwith the fish box and the hydroponic device, and conveys water from the fish box into the hydroponic device; the other side of the channel is provided with a control chamber and a storage chamber, the control chamber is arranged at one end of the storage chamber, the other end of the storage chamber is provided with a planting bed for planting vegetables, melons and fruits, one end, far away fromthe storage chamber, of the planting bed is provided with an earthworm farming box, and the upper end of the earthworm farming box is provided with a poultry farming box for farming poultry. Comparedwith the prior art, the container-type comprehensive ecological farm has the advantages that the size is small, the influence from plant diseases and insect pests is reduced, the ecological cycle utilization rate is high, and fresh and safe organic foods are provided.

The embodiment of the invention provides a wind farm active power output smoothing control method and a device. The method comprises the following steps: predicting the output fluctuation trend of thewind farm by using a wind farm control model based on a Smith prediction algorithm; and determining and executing a wind power smoothing strategy of the energy storage system according to the outputfluctuation trend of the wind farm. The embodiment of the present invention applies Smith prediction to wind farm control according to the characteristic that the whole wind farm control system exhibits large time delay, which can ensure the stability of the wind farm wind turbine output as a whole, at the same time, according to the historical control results of the wind farm, statistical analysis is performed, the energy storage system can optimize the regulation compensation in advance according to the analysis results, which can improve the regulation speed and accuracy, reduce the regulation frequency and regulation amount of the energy storage device, and realize the win-win between the grid and wind farm.

The invention discloses a terahertz anti-resonance optical fiber polarization modulator, which comprises an anti-resonance optical fiber, a vanadium dioxide film and a pulse modulation laser source, wherein the anti-resonance optical fiber is composed of an air fiber core, hollow thin-walled tubes and a tubular outer wrapping layer, and the hollow thin-walled tubes are evenly distributed on the inner wall of the tubular outer wrapping layer; the hollow thin-walled tubes are not in contact with each other to form a node-free structure, and the hollow thin-walled tubes surround the periphery ofthe air fiber core to serve as an inner cladding; the vanadium dioxide film is deposited on the inner wall of the hollow thin-walled tube; the pulse modulation laser source enters the hollow thin-walled tube through coupling to excite the vanadium dioxide thin film to generate phase change, so that terahertz waves in the air fiber core are polarized; on-off and intensity of pulse lasers in different hollow thin-walled tubes are controlled, and the polarization state of terahertz waves can be regulated and controlled. The HC-ARF-based high-speed waveguide polarization regulation and control device is realized, and the vacancy in the field of polarization regulation and control devices is complemented.

The invention provides a method for controlling a constant-power inverse model of an ultra-/extra-high voltage magnetically controlled shunt reactor. By adopting the design idea of decomposing and modeling, dynamic effects of a nonlinear element part and an external system of the magnetically controlled shunt reactor are respectively modeled. The structural principle of a magnetic circuit of the magnetically controlled shunt reactor is analyzed, an inverse object equation describing the characteristics of a nonlinear magnetic circuit is established, the characteristics of a saturable magnetic circuit are described with arc hyperbolic function, Taylor's expansion is carried out on a nonlinear equation according to Abel theorem, an exciting current required by a control system is solved through analytic solution, and an inverse object transfer function is built according to the correlation between the external power system and the magnetically controlled shunt reactor. In addition, the control method creates a new idea for designing other nonlinear element controllers.

The invention discloses a structure and method for achieving low-temperature pipeline system pressure oscillation regulation and control. The structure comprises a low-temperature liquid storage tankinternally provided with a low-temperature liquid, a low-temperature pipeline with the open end connected with the low-temperature liquid storage tank and the other end closed is arranged in the low-temperature liquid storage tank, an oscillation regulation and control module for regulating system internal pressure oscillation is installed on the low-temperature pipeline, the low-temperature pipeline is located in a normal-temperature environment, and the low-temperature pipeline and the open end placed at the low-temperature liquid storage tank jointly form temperature gradient distribution in the axial direction of the pipeline, so that pressure oscillation inside the system is induced. According to the structure, the low-temperature pipeline with the open end connected with the low-temperature liquid storage tank and the other end closed is arranged in the low-temperature liquid storage tank, and the oscillation regulation and control module for regulating the system internal pressure oscillation is installed on the low-temperature pipeline so that on one hand, adverse pressure oscillation in a low-temperature pipeline system can be effectively inhibited by regulating the position of the oscillation regulation and control module, on the other hand, the structure is simple, implementation is easy, the requirements of different regulation and control effects can be met, the regulation and control speed is high, and performance is reliable.