157results about How to "Adjust output power" patented technology

The invention belongs to the technical field of wind power generation, and particularly provides a power adjusting method and a power adjusting device in a wind farm. The method comprises the following steps of: 1) acquiring an effective power demand value of the wind farm in real time, and taking the effective power demand value as target output power Pr of the wind farm; 2) acquiring the current actual output power P of the wind farm; 3) calculating a power adjusting value of the wind farm according to the current actual output power P and the target output power Pr of the wind farm; 4) determining a power adjusting strategy on the basis of the power adjusting value; and 5) controlling the working state of corresponding fans in the wind farm on the basis of the power adjusting strategy; and repeating the step 2) to the step 5), till the output power of the wind farm meets the power demand of a power grid. In the power adjusting method and the device provided by the invention, the output power of the wind farm can be adjusted in time and accurately, the stability and the safety of the operation of the fans are improved and the labor cost also can be greatly saved simultaneously.

The invention relates to the field of air conditioner control, in particular to an electric heating structure and an air conditioner compressor starting system and method. The electric heating structure comprises an electric heating control system and an electric heating device. The electric heating control system comprises a driving circuit and an electronic switch circuit. The driving circuit is used for adjusting the duty ratio of the electronic switch circuit. The electronic switch circuit is used for adjusting the output power of the electric heating device according to the duty ratio. The electric heating device is used for preheating an air conditioner compressor. According to the technical scheme, the output power of the electric heating device can be adjusted according to the exhaust temperature of the compressor; compared with the method that preheating is conducted by adopting a constant-power electric heating device in the prior art, the heating speed of the compressor is high, and the preheating process safety can be ensured; and accordingly, the starting waiting time of an air conditioner compressor system under a low-temperature environment is reduced, energy consumption is reduced, and meanwhile, the user experience effect is improved.

The invention relates to the related technical field of mobile communication coverage, in particular to an elevator mobile communication coverage system and an elevator mobile communication coverage method. The elevator mobile communication coverage system comprises a power controller, an information source antenna, a donor antenna and a retransmission antenna, wherein the input end of the power controller receives information source signals, the output end of the power controller is connected with the information source antenna in a wired mode, and the information source antenna is installed on the top of an elevator shaft; the donor antenna is installed outside an elevator cage of an elevator; the retransmission antenna is installed inside the elevator cage of the elevator; and the information source antenna is connected with the donor antenna in the wired mode. According to the elevator mobile communication coverage system and the elevator mobile communication coverage method, wireless transmission is realized between the information source antenna and the donor antenna, so that installation of equipment is avoided in the elevator shaft, the installation is fast and convenient, the manufacturing cost is low, property coordination is reduced, and the power taking and maintenance difficulty is reduced.

The invention discloses a double-bevel gear differential speed reducing mechanism, and relates to a speed reducing mechanism. The double-bevel gear differential speed reducing mechanism comprises an input shaft part I, a planetary support part, a double-bevel gear I, A double-bevel gear II, a shaft sleeve I, a shaft sleeve II, a retainer ring I, a pin I, a retainer II and a pin II. In the operation process of the speed reducing mechanism, the rotating speed of a planetary support transmission shaft is related to the rotating speed difference of two motors, and has the advantages that the transmission ratio is large, the output torque is large; the two motors can be always in a high-speed running state, under the condition that the rotating directions of the two motors are unchanged, the rotating direction of the planetary support transmission shaft of the speed reducing mechanism can be changed, a load device is driven to realize the functions of running, stopping, and changing the rotating direction of the load device, meanwhile, the speed reducing mechanism can ensure that the motors operate in a high-efficiency working state, and the response speed is increased when the speed reducing mechanism changes the rotating direction of the load device.

A method of self-adaptable adjusting the sending power of the broadcasting station, which is applied to communicate information between a mobile station and a base station when the change of the fast decline and slow decline of a communication signal during the high speed running, according to the recorded values of the sending record queue of the sent groups, calculate the average retransmiting times in order to adjust the output power of the mobile broadcasting station dynamic ally, and then the channels are working in perfect state.

The invention provides a hot plate air extracting device, which comprises a box body, a hot plate and an air extracting unit, wherein the box body comprises a process chamber; various functional components of the hot plate air extracting device are accommodated into the box body; the hot plate is fixedly arranged in the process chamber through a supporting body; a to-be-processed wafer is arranged on the hot plate; the air extracting unit is electrically connected with the temperature control unit for detecting the temperature in the process chamber and regulates and controls an output power of the air extracting unit according to the detected temperature of the temperature control unit. Through the hot plate air extracting device and the temperature control method thereof, the temperature in the process chamber can be detected in real time; and the output power of the air extracting unit is regulated and controlled to maintain a stable process environment in the process chamber, so that the thickness uniformity of a photoresist, the critical dimension (CD) stability and uniformity and the profile (Profile) stability are achieved.

The invention discloses a horizontal non-uniform indirect heating rectangular channel flow visualization test apparatus. The apparatus consists of a flow channel body module, a power loading module and a clamping fixing module. By conveniently adjusting an output power of each electric heating element, horizontal heat flow distribution with different forms is realized according to research needs. The test apparatus can be used to carry out a flow visualization test research of a rectangular narrow-slit flow channel under horizontal non-uniform heat flow working conditions, influences of thermal parameters such as pressure, temperature, flow volume and horizontal heat load distribution, and corresponding geometric parameters on flow characteristics in the narrow-slit channel are studied, and corresponding bubble dynamic characteristics and flow pattern transition criteria are obtained. At the same time, the test apparatus can obtain detailed flow field and temperature field information by combining with advanced measuring equipment and testing means. In addition, the test apparatus is designed with the reasonable clamping fixing module to ensure that the test apparatus can be operated within a wide range of thermal parameters to meet test working condition demands of different engineering under practical application backgrounds.

The present invention discloses an electric vehicle. The electric vehicle comprises a motor, an angle transducer and a controller, wherein the angle transducer is connected with the motor; when the electric vehicle travels on a first road face at a first speed, a first gradient of the first road face is obtained through the angle transducer; when the electric vehicle travels on a second road face, a second gradient of the second road face is obtained through the angle transducer; the second gradient and the first gradient are compared to see if being equal; and if not, output power of the motor is adjusted, so as to enable the electric vehicle to travel on the second road face at the first speed.

The invention discloses a multicoil switching wireless power transmission coupling device. The multicoil switching wireless power transmission coupling device comprises an alternating-current voltage source, a rectifier, an inverter, a switch group, a coupler, a load, a grating sensor, a receiving end controller, a transmitting end controller and a combined logic circuit, wherein the alternating-current voltage source, the rectifier, the inverter, the coupler and the load are sequentially connected in series, the grating sensor is connected with the receiving end controller, the receiving end controller is connected with the transmitting end controller in a wireless communication mode, the transmitting end controller is connected with the combined logic circuit, the combined logic circuit is connected with the switch group, and the switch group is connected with the coupler. The transmitting end controller can accurately switch a working coil at the transmitting end of the coupler to a region over against the receiving end, accurately adjust the horizontal position diverge degree between the transmitting end and the receiving end of the coupler and control the conducting angle of a switch device in the inverter to accurately control output power of the inverter. The invention further discloses a control method of the multicoil switching wireless power transmission coupling device.

The invention provides a booster bicycle and a speed change device thereof. The speed change device comprises an electronic control unit, a power supply unit, a motor unit, a speed change unit and a sensing unit. The power supply unit is used for providing electric energy. The sensing unit is used for acquiring movement signals of the bicycle. The movement signals comprise treading frequency signals and torque signals. The electronic control unit is used for outputting gear information to the speed change unit according to the movement signals and a movement mode preset by a user in order to adjust gears of the speed change unit, and outputting boosting information to the motor unit in order to adjust the output power of the motor unit. The speed and assistance of the bicycle can be adjusted according to the movement mode set by the user, multiple riding requirements of the user in different road environments are met, and the riding experience of the user is improved.

The invention discloses a power supply control method. The method comprises the steps: when a PSU has a fault in a power supply system, determining a power compensation value of each PSU without a fault; converting the power compensation value into a target voltage value of each PSU; and finally, adjusting the output voltage value of each PSU without the fault to a corresponding target voltage value. Even if a faulty PSU exists, the output power of each PSU can be adjusted by adjusting the output voltage of each fault-free PSU, so that the three-phase output power is equal, namely, three-phaseload balance is realized, the influence on stable operation of a power grid is eliminated, and potential safety hazards are eliminated. The invention further discloses a power supply control device and equipment and a computer readable storage medium, which have the same beneficial effects as the power supply control method.

The invention provides a radioactive photoelectric conversion battery which is lower in energy consumption and processing cost and is capable of adjusting output power. The radioactive photoelectric conversion battery that the invention relates to is used for converting radiant energy of a radioactive source to electric energy, and is characterized by having a radioactive source accommodating cavity formed by a barrel in a surrounding manner and used for accommodating the radioactive source; a solar cell panel used for converting radiant energy to electric energy; and a metal plate used for generating positive charges through induction when radiant energy acts on the solar cell panel, wherein the solar cell panel covers the radioactive source accommodating cavity, the metal plate covers the solar cell panel, the metal plate and the solar cell panel are insulated from each other, the radioactive source accommodating cavity has a cavity body and a center shaft part movably accommodated in the cavity body, the center shaft part is used for fixing the radioactive source and moving back and force in the cavity body, an anti-radiation layer is arranged on the cavity body, and at least one gap is arranged on the anti-radiation layer.

The invention relates to a rechargeable intelligent sound box power supply management system. Audio signals received from the outside are amplified and played through a loudspeaker. The charging circuit is used for charging the battery pack module, the switching circuit is used for turning on or turning off the power supply of the intelligent sound box, the boosted circuit boosts the voltage of the battery pack module and outputs the boosted voltage to the power amplifier, and the signal sampling feedback circuit is used for collecting power signals of the power amplifier in real time. The single-chip microcomputer circuit outputs a PWM signal to the charging circuit according to the current of the power input interface, and is used for adjusting the charging current and controlling the charging time of the battery pack module. And meanwhile, the output voltage of the booster circuit is controlled according to the acquired real-time power signal, so that the output voltage changes in real time along with the change of the power amplifier. The power supply management system provided by the invention not only considers the working efficiency of the battery pack module, but also considers the music playing effect of the loudspeaker.

An allocation type solar power grid-connected power generation control method based on the wireless network includes 1, utilizing inverters arranged in solar photovoltaic systems, and collecting the local information of the solar photovoltaic systems; 2, allowing a central controller to calculate the network total allocated power PS; 3, allowing the central controller to transmit the calculated allocated power Pi to the corresponded solar photovoltaic systems, and allowing the corresponded inverters to adjust fresh power points of the solar photovoltaic systems according to the received allocated power Pi; 4, allowing the central controller to detect whether the network state meets optional one of three boundary conditions or not, and calculating fresh power indexes and transmitting to terminal nodes of the solar photovoltaic systems. By the aid of the method, the problems of over voltage, power upstream and fair resource allocation of the existing system are solved.

The invention discloses a power regulation device for solid-state high-frequency induction heating power sources. The power regulation device is connected with a high-frequency inverter and comprisesa main loop control unit, an AC/DC conversion module, a current limiting reactor and DC/DC conversion modules. The main loop control unit, the AC/DC conversion module, the current limiting reactor andthe DC/DC conversion modules are sequentially connected with one another; the AC/DC conversion module comprises a three-phase full-bridge rectification circuit; the DC/DC conversion modules comprisefilter capacitors, bridge inverter circuits, high-frequency transformers and rectification circuits, and the filter capacitors, the bridge inverter circuits, the high-frequency transformers and the rectification circuits are sequentially connected with one another. The power regulation device has the advantages that the turn-on time of switch elements in the bridge inverter circuits can be controlled, the duty ratios of output voltages of the bridge inverter circuits can be controlled, direct-current voltages outputted by the rectification circuits can be regulated, accordingly, output power of the high-frequency inverter can be regulated, and the problems of low power factors of power regulation by the aid of the traditional three-phase full-control rectifier bridge circuits with siliconcontrolled rectifiers (thyristors), severe harmonic pollution on power grids, large voltage reduction volumes of power-frequency three-phase voltage reduction transformers, low efficiency, high cost and the like can be solved by the aid of the power regulation device.

The invention provides a laser treatment system based on an emergent laser detection and correction treatment scheme. The system is characterized by detecting the error between an actual output laserof an operation optical fiber emitting end of a laser treatment instrument and a set laser, correcting the original treatment scheme according to the actual output laser and target position information, and adjusting the output power and time of a laser device, so that the optimization of an operative program is realized, and the operation results of being minimally invasive, precise, accurate andsafe are achieved. The laser treatment system provided by the invention has the technical effects of being stable and reliable, flexible and convenient in device configuration and arrangement and high in applicability; and furthermore, the device is low in processing production cost, and has a higher market promotion value.

The invention relates to a plant power generation system, and the system can directly use electric energy generated by photoreaction in a process of plant photosynthesis and stably output electric energy at a state of living plants. The system consists of a power module, a controller module and an inverter module. The power module consists of a plurality of power generation unit arrays, and a plurality of power generation modules are connected in parallel to form a power generation system, thereby enabling the output electric energy to be stable and reliable, and enabling the efficiency to be higher. The living plants are directly used for power generation under the condition of not affecting the growth of plants, so the system is green and environment-friendly, the energy is clean and renewable, and the cost is low.