163results about How to "Realize energy-saving control" patented technology

The invention provides an air energy water heater and a control method and device for the same. The control method comprises obtaining historical time data of utilization of hot water in the air energy water heater by users; determining starting time of the air energy water heater according to the historical time data; controlling the air energy water heater to be started to operate according to the determined starting time. By means of the air energy water heater and the control method and device for the same, the air energy water heater can be controlled to be started to operate according to user own water consumption habits, so that hot water can be provided as user required, frequent heating is not required, and energy-saving control is effectively achieved.

The invention discloses an ACC (adaptive cruise control) system for a four-wheel hub motor electric vehicle, which comprises: taking the four-wheel hub motor electric vehicle as an object of study on ACC (adaptive cruise control), the invention provides a mode switching control method considering the difference between theoretic safe distance and actual distance and relative velocity of two vehicles. According to the method, ACC into a preceding vehicle following mode, a constant velocity cruise mode and a uniform velocity travelling mode; an ACC controller comprising a theoretic safe distance algorithm, a driving torque control algorithm and a braking torque control algorithm, is designed; braking energy is recycled through regenerative braking; a control strategy is verified experimentally based on typical working conditions designed by a driving simulator experiment table. The invention discloses an ACC method for a four-wheel hub motor electric vehicle. The system and the method have the characteristics of being high in operational security and stability, accurate in control, reasonable in torque distribution, and effective in energy-saving control.

The present invention provides a method for automatically controlling partial functions of an air conditioner and a heat pump water heater based on weather forecast data. According to the method, mainly the control on an air conditioner and the big data of weather forecast are combined, such that the air conditioner can predict and automatically control the opening and the closing of the electricheating tape of a compressor during the standby of the air conditioner according to the temperature change in weather forecast, the amount of new air introduced by an indoor unit can be automaticallycontrolled according to outdoor air quality report data while whether an indoor heat exchanger is clogged by dirt can be judged by combining historical air quality data and the gas discharging temperature or the pressure data of the compressor, the dehumidification period or logic can be automatically established according to local seasonal climate, or the evaporation pressure during cooling can be adjusted sp as to make the air conditioner dehumidify according to the concrete humidity condition, the temperature change at the current day can be predicted, the water boiling temperature can be adjusted, the running period achieving the highest energy efficiency can be determined, and the time for boiling water can be calculated and is transmitted to a client terminal.

The invention relates to an adaptive segmentally controlled tunnel illumination control system and method; the system comprises a tunnel illumination controller, a signal detection unit, a Zigbee network unit, and a plurality of illumination lamp sets; the signal detection unit comprises a vehicle sensor, a vehicle speed sensor, a brightness sensor, a temperature sensor, and a raindrop sensor; the Zigbee network unit comprises Zigbee main node module connected with the tunnel illumination controller, and a plurality of Zigbee node modules respectively connected with the illumination lamp sets; the illumination lamp sets comprise an introduction segment lamp set arranged outside the tunnel, an illumination lamp set arranged in the entrance segment in the tunnel, a transition segment illumination lamp set, a middle segment illumination lamp set, an exit segment illumination lamp set, and a road lamp illumination lamp set arranged outside the tunnel, and also comprise an emergency illumination lamp set. The adaptive segmentally controlled tunnel illumination control system can realize tunnel illumination, satisfies illumination curve demands of human eyes, thus eliminating black frame, black hole and white hole effects.

The invention discloses an intelligent driving system of a street lamp based on an LED array, comprising a bridge rectification circuit, a quasi-resonance period DC / DC conversion circuit, an LED illumination module circuit, a current / voltage detecting circuit, a photoelectric insulation circuit, a microprocessor and a microprocessor peripheral circuit. Compared with the prior art, the intelligent driving system of the street lamp based on the LED array utilizes the microprocessor to control and manage the photoelectric heat dynamic characteristic of an LED, thereby improving the working reliability of the LED and achieving the energy-saving purpose. The invention also provides an energy-saving control method of a street lamp, which enables the intelligent driving system of the LED street lamp to make adaptation and adjustment according to the luminescence characteristic change caused by the change of exterior conditions such as working temperature, and the like so as to achieve optimal illumination effect and optimize the illumination efficiency of an LED street lamp system.

The invention discloses a heterogeneous vehicle queue distributed energy-saving control method based on MPC. The method includes 100, constructing a heterogeneous vehicle queue ;200, constructing a distributed heterogeneous queue energy-saving control method framework comprising an energy-saving control and a vehicle following controller; 300, designing an energy-saving controller; Step 400, determining the economic vehicle speed of each vehicle in the heterogeneous vehicle queue; 500, designing a car following control; 600, clarifying that division of labor among the vehicle controllers in the heterogeneous queue; Step 700, allowing each vehicle in the heterogeneous vehicle queue to travel according to the economic vehicle speed provided in step 400 without road gradient; and, in the caseof road gradients, allowing each vehicle in the heterogeneous vehicle queue to travel at the current economical vehicle speed provided by the following steps. The control method provided by the invention can achieve the following and stability control of the heterogeneous vehicle queue and simultaneously realize the energy-saving control of the heterogeneous queue under the condition of acquiringthe road information, and the method can effectively reduce the energy consumption of the vehicle queue.

The invention discloses a fused salt heat exchange experimental device and a control method thereof. The experimental device comprises a high-temperature fused salt circulating circuit, a heat-conducting oil circulating circuit, a cooling water circulating circuit and a control system, wherein the high-temperature fused salt circulating circuit and the heat-conducting oil circulating circuit are separately connected with parallel fused salt heat exchange experimental sections; the heat-conducting oil circulating circuit and the cooling water circulating circuit are separately connected with a heat-conducting oil heat exchanger and a cooling water heat exchanger; the control system is a Fuzzy-PID (Proportion Integration Differentiation) control system, and has the characteristics of rapid response control, high control precision and easiness for realization. According to the fused salt heat exchange experimental device and the control method thereof disclosed by the invention, the project quantity of replacing the experimental sections is reduced; meanwhile, the experimental sections are simultaneously performed by intelligent control, so that the consumption of energy sources is reduced to a great degree, and accurate control over temperature and flow can be realized; meanwhile, aiming at the control over the parallel experimental sections, huge contribution on energy conservation is realized. Experimental operation personnel are away from an experimental table area, and intelligent automation is completely realized, so that the security of the experimental personnel is realized.

The invention provides an energy saving control method and device of an air conditioner at the tail end of a data center machine room. The energy saving control method of the air conditioner at the tail end of the data center machine room comprises the steps that the temperature of the returned air of an air conditioner device at the tail end of the data center machine room is collected; according to the temperature of the returned air, the supplied water temperature increasing requirement is sent to a self-control refrigerating system of the data center machine room so that the self-control refrigerating system can increase the temperature of the chilled water of a self-control system. The temperature of the supplied water can be increased in an electric refrigerating mode, the temperature can be reduced in a natural cooling mode, the energy-saving control over the refrigerating system is achieved, control optimization is carried out on the air conditioner at the tail end, the heat exchanging efficiency is improved, and the whole energy consumption is controlled within the reasonable range.

The invention discloses a control method of an air conditioner. The control method includes the steps that the air conditioner is controlled to operate in a comfort control mode; the air conditioner is controlled to adjust the indoor temperature to a set temperature; the current PMV value is determined; and the set temperature and the air speed are adjusted according to the determined PMV value. According to the control method of the air conditioner, the air conditioner can be made to meet the requirement of a user for comfort, and meanwhile, the air conditioner can operate in an energy saving mode, so that energy consumption is lowered.

The invention provides an air compression system and a control method. The air compression system comprises air compressors, a detection assembly, a valve assembly, a function switching module and a controller. At least one of the air compressors is provided with a frequency converter. The detection assembly is used for detecting the gas parameters in an outlet pipeline. The valve assembly is connected between an air suction valve and an oil-gas separator and used for forming the internal air circulation of the air compressors, lowering the pressure difference of inlets and outlets of the air compressors and reducing the start and unloading torque. The function switching module is used for changing the electric drive mode of the air compressors so that the air compressors can be switched between the power frequency and the variable frequency. The controller is used for calculating and adjusting the output frequency of the frequency converters according to the detected parameter changes for adjusting gas supply. The system solves the pressure of the maximum efficiency within the required pressure range and assigns the value to a PID so as to control the air compressors to act; when the air compressors operate, the loading and unloading pressure value is set, and the start and stop of the frequency converters are controlled; and the dew point temperature is calculated, a drying machine is started and stopped automatically, the optimum operation of energy efficiency is achieved, the work efficiency is improved, and the operation cost is lowered.

The invention discloses an automatic train driving energy-saving control method which includes the steps: calculating entering speeds of various running phases, duration time of various phases and usedistances of various phases according to different train performance models, train wind resistance models and line slope information, taking running distances between stations as limit conditions, and acquiring a series of speed curve models in a calculated manner; predicting energy consumption of each speed curve model by a train energy consumption model; comprehensively assessing the all speedcurve models based on optimizing factors containing energy consumption and the weight of the optimizing factors, selecting an optimal speed curve model, and automatically driving the train by the optimal speed curve model. According to the method, running energy consumption can be predicted, an optimal control curve is selected by combining the energy consumption, and energy-saving control is achieved.

The invention provides an energy saving method of multiple controllers based on SDN (Software Defined Network) network architecture and a device based on the SDN (Software Defined Network) network architecture. The method comprises following steps of receiving a signal sent by each controller in each cluster, wherein the signal comprises a controller identifier and a current load capacity corresponding to the controller identifier; according to the current load capacity corresponding to each controller identifier, and the energy consumption parameter and containable maximum load capacity corresponding to each controller identifier, obtaining the total energy consumption value of all controllers; judging whether the total energy consumption value is more than a first preset energy consumption value or not; if the total energy consumption value is not more than the first preset energy consumption value, according to the current load capacity, time delay parameter, theoretical load capacity and containable maximum load capacity corresponding to each controller in each cluster, obtaining to-be-closed controllers; sending closing requests to the to-be-closed controllers, wherein the to-be-closed controllers receiving the closing requests close according to the closing requests. Under a condition that the SDN network architecture operates normally, low energy consumption is realized; the energy is saved; and the environment is protected.

The invention discloses a high-frequency multiple high voltage pulse generating method, a high-frequency multiple high voltage pulse power supply and an electric precipitator. According to the description, a master control unit controls high-frequency pulse power supply units needing to work at a certain moment to simultaneously generate direct-current high-voltage pulses according to setting; in work, the master control unit controls the high-frequency pulse power supply units needing to work at a certain moment to simultaneously generate the direct-current high-voltage pulses according to setting, and the direct-current high-voltage pulses are superposed at a total output end to form multiple high voltage pulses. The high-frequency multiple high voltage pulse power supply integrates various power supply modes, and direct-current power supply, intermittent pulse power supply and direct-current superposed-pulse power supply can be achieved. Pulse voltages are superposed on the basis of an effective direct-current corona voltage, step pulse supply is achieved, and the pulse leading edge time is short. High-ratio resistance dust can be effectively collected, back corona can be inhibited, the collecting efficiency of fine dust (PM2.5) can be improved, and the high-frequency multiple high voltage pulse power supply is a new-generation power supply of the electric precipitator.

The invention discloses a control device of an induction motor, comprising a tri-phase bridge rectifier, a power module, the induction motor, a current transformer, a coder, a pulse-width modulation (PWM) driver and a driving operating system, wherein the driving operation system adopts a vector control mode and comprises a filter circuit which is connected between a speed loop proportional plus integral (PI) controller and an exciting current instruction operation unit of the driving operation system and is used for filtering the moment current instruction value and inputting the filtered moment current instruction value in the exciting current instruction operation unit; and the exciting current instruction operation unit corrects the exciting current instruction value Ids of the induction motor based on the filtered moment current instruction value to lead the induction motor to have the minimum total current under the same load condition. The invention also discloses an application of the control device of the induction motor. In the invention, on the premise of not weakening the heavy load driving capacity of an escalator and a moving walk, the effect of stable operation of the motor with minimum current under a medium / light load condition is realized, thus achieving energy conservation.

A method for optimizing and controlling rotary kiln air volume includes that closed-loop control is conducted on fuel flow according to load raw material flow, the kiln tail temperature and temperature difference between the kiln head and the kiln tail, optimal air volume is found according to the fuel flow, a back-to-back method and a self-optimization algorithm, and closed-loop control on the air volume is achieved. By means of the method, product quality problems caused by unreasonable temperature field distribution of the rotary kiln can be effectively solved, problems of insufficient burning of fuel, raw material flow abnormality in a preheater and low heat efficiency of the preheater due to unreasonable air volume can be solved effectively, and the purposes of reducing fuel consumption and stabilizing product quality are achieved.

The invention discloses a method for controlling an air conditioner. The method comprises the steps that the air conditioner is controlled to get into a comfort control mode; the air conditioner is controlled to adjust indoor temperature to set temperature; the current PMV value is determined; and the set temperature, relative humidity and air speed are adjusted according to the determined PMV value. According to the method for controlling the air conditioner, the air conditioner can meet the requirement of the use for comfort, meanwhile, the air conditioner can operate in an energy saving manner, and energy consumption is reduced.

The invention discloses a method for obtaining and controlling the rapid feed power and the energy consumption of a numerical control machine tool. The method comprises the following steps that firstly, a maximum feed speed of a feed shaft of the numerical control machine tool is set, and the feed movement power equation and feed system parameters of the feed shaft are obtained; secondly, the computational formula of the rapid feed power and the energy consumption is obtained according to the feed system parameters and the feed movement power equation; thirdly, the feed distance of the feed shaft is set, the feed distance and different maximum feed speeds are combined, combinations of the feed distance and the different maximum feed speeds are substituted into the computational formula of the rapid feed power and the energy consumption, and a rapid feed power peak and different values of energy consumption are obtained through computation; fourthly, according to the rapid feed power peak and the different values of energy consumption, the feed shaft of the numerical control machine tool is controlled according to the appropriate maximum feed speed. By the adoption of the method for obtaining and controlling the rapid feed power and the energy consumption of the numerical control machine tool, accurate rapid feed power and energy consumption can be obtained through prediction, and a computation result can be directly used for evaluation of the energy consumption and energy-saving control of the numerical control machine tool.

The invention discloses an efficient running control method for a water ring vacuum pump unit and a control system and relates to the field of energy saving and emission reduction of fluid machinery. The efficient running control method comprises the following steps: based on the operating characteristics of the water ring vacuum pump unit, building an efficient running control model of the water ring vacuum pump unit; with respective to specific application working conditions, inputting nominal parameters of the water ring vacuum pump unit and user requirement parameters; acquiring real-time operating parameters of the water ring vacuum pump unit via a measuring meter, and through operation feedback of a control box, adjusting such parameters as the rotational speed of the water ring vacuum pump unit, and the opening degree of a supplementary operating fluid control valve in real time; and enabling the water ring vacuum pump unit to work under the conditions of maximum comprehensive efficiency and low power consumption via the steps of pre-vacuumizing, selection of optimal rotational speed and optimal fluid supplementation amount, constant-voltage operation, shutdown judgment and the like. By use of the efficient running control method, the problem of excessively high energy consumption caused by extensive operation of the water ring vacuum pump unit is solved and the effect of saving electricity and water is achieved.

The invention relates to a power management device based on a linux system and a management method thereof. The invention realizes energy-saving control on a mobile handheld device platform so as to automatically switch to an energy-saving mode based on a set static power control mode and directly switch to a standby mode or a sleep mode immediately after the current running state is idle for a period of time, thus not affecting operation of current users, achieving energy-saving effect and prolonging cruise duration of the device.

The invention discloses a coal mine underground multi-stage energy-saving roadway cleaning device. The cleaning device is characterized in that a water supply pipe is arranged in the longitudinal direction of a roadway, penetrates through the whole roadway and is hung on anchor rods on a roadway roof through hooks; an adjustable high-pressure water pump supplies water to the water pipe; rotary sprayer assemblies are connected with the water supply pipe in parallel through needle valves at equal intervals; each rotary sprayer assembly comprises a center nozzle and four peripheral nozzles, wherein the four peripheral nozzles each comprise a wide-angle sector-shaped atomizing nozzle and a narrow-angle sector-shaped atomizing nozzle; the number of flushing stages of the roadway is determined according to the length of the roadway through the technical means such as control switches of pneumatic actuators arranged at the height positions capable of being reached by the hands of operators, and the whole roadway is cleaned and flushed in a graded mode. Compared with the prior art, the cleaning device has the advantages of being simple in structure, convenient to control and adjust, good in dust removal and dust fall effect, low in operating cost, capable of saving energy and water, safe, stable, reliable and the like.

The invention discloses an energy-saving control system for a screw type electric air compressor set. The energy-saving control system comprises a main control machine and multiple driven machines. The main control machine comprises a first screw electric air compressor, a frequency converter connected with the first screw electric air compressor, a first controller connected with the frequency converter and a first air pressure sensor, wherein the first air pressure sensor is connected with a high-pressure air conveying pipeline and used for transmitting detected pipeline air pressure data to the first controller. Each driven machine comprises a second screw electric air compressor, a power frequency controller connected with the second screw electric air compressor and a second air pressure sensor, wherein the second air pressure sensor is connected with the high-pressure air conveying pipeline and used for transmitting detected pipeline air pressure data to the power frequency controller. The power frequency controller is connected with the first controller. The first controller acquires the pressure values detected by the first air pressure sensor and the second air pressure sensor, and the frequency converter is controlled and the frequency of the motor and start and stop of the driven machines are controlled according to the set PID control. The energy-saving control system has the beneficial effects that energy saving is achieved, and the start is skipped to automatically when a failure happens.

The invention discloses a temperature control method of a high ring annealing furnace controlling the furnace temperature according to the different behavior, which comprises the following steps: applying the low burning control method after opening the door of the furnace in order to save the energy and protect the equipment. The invention is characterized by the following: transmitting separately the output signal of the furnace temperature adjuster in the control system to a high selector and a low selector which controls a gas relief valve and an air valve through a flow regulator and the other input of which is a computational value detected by the flow regulator according to the normal single cross limiting amplitude control means; when opening the furnace door, equipping the output signal of the furnace temperature adjuster with the low burning fixed value; when closing the furnace door, equipping the output signal of the furnace temperature adjuster with a behavior burning fixed value, wherein 5 DEG C between the equipped value of the furnace temperature adjuster and the detected value of the furnace temperature adjuster; the output signal of the furnace temperature is equipped with the burning fixed value after recovering the low burning.

The invention discloses a multi-path hydraulic system of a hydraulic excavator. The multi-path hydraulic system comprises a controller, an oil inlet pipe, an oil return pipe, a variable pump, a movable arm oil cylinder hydraulic system body, a bucket arm cylinder hydraulic system body, a bucket cylinder hydraulic system body, a rotary motor hydraulic system body and a walking motor hydraulic system body; an outlet of the variable pump is connected with the oil inlet pipe through a pipeline, and an inlet of the variable pump is connected with the oil return pipe through a pipeline; the movablearm oil cylinder hydraulic system body, the bucket arm cylinder hydraulic system body, the bucket cylinder hydraulic system body, the rotary motor hydraulic system body and the walking motor hydraulicsystem body are arranged between the oil inlet pipe and the oil return pipe. Each system body comprises an independent overflow valve and a proportional valve, a loading port is independently controlled, and therefore control is more flexible; meanwhile, the variable pump is adopted as an executing element, data of sensors is collected through the controller to adjust the flow, input into the system, of the variable pump in time, energy waste is avoided, and energy-saving control is realized.

The invention discloses an air-conditioner heating control method and a device. The air conditioner heating control method comprises the steps of sending an instruction for triggering an air conditioner to start up and the current body temperature information of an indoor user to the air conditioner, starting up the air conditioner according to the instruction, acquiring the current indoor environment temperature and the outdoor environment temperature, determining a temperature difference according to the acquired current indoor environment temperature and the outdoor environment temperature, determining the current comfort degree level of a human body according to the temperature difference and the current body temperature information of the human body, and setting different heating modes according to different current comfort degree levels of the human body. The air-conditioner heating control method provided by the invention can maximally bring comfortable experience for the user, is beneficial to meeting the user demand, and achieves an ideal effect for the user.

The invention discloses a control device which comprises a control circuit, a vacuum degree sensor disposed in the vacuum pump, a water flow sensor disposed in a water supply pipeline and an electromagnetic valve disposed in the water supply pipeline. The control circuit comprises a single-chip microcomputer, an external reset clock circuit, an A / D conversion circuit, a serial communication circuit, and a D / A conversion circuit. The external reset clock circuit and the serial communication circuit are respectively connected with the single-chip microcomputer. The single-chip microcomputer is connected with the electromagnetic valve through the D / A conversion circuit. The vacuum degree sensor and the water flow sensor is connected with the single-chip microcomputer through the A / D conversion circuit of the control circuit. The single-chip microcomputer controls the water flow in the water supply pipeline through the electromagnetic valve. The invention further discloses a water ring vacuum pump and a control method thereof. By the control device, the power consumption of the water ring vacuum pump is minimized, energy saving control of the water ring vacuum pump is achieved, power is saved while vacuum degree is stabilized, and the work efficiency of the water ring vacuum pump is increased.

The invention relates to the field of Ethernet switch energy saving, and particularly relates to an Ethernet switch and a port polling system and a polling method thereof. A first timer is arranged to carry out timing for the ports of a switch in a polling way, a processor reads the connection state of the current timing port within the time of port polling timing, and therefore, opening and closing of the sending and receiving function of the ports can be controlled according to the connection state of the ports at the end of port polling timing, and energy saving control on the switch is realized. Meanwhile, a second timer is provided to control the polling frequency of each port of the switch, so that opening and closing of the sending and receiving function of the ports can be controlled at appropriate time according to the connection state of the ports. Therefore, real-time demand of the normal functions of the ports can be effectively ensured while energy saving control is achieved.

The invention provides an air conditioner outdoor machine chassis electric heating control method. The method includes the steps that a current distance L between a detection end port of a distance measuring unit above an air conditioner outdoor machine chassis and the outdoor machine chassis is detected; the current distance L is compared with a preset distance L0, and a distance difference valuedelta L is acquired; and according to a comparison result of the distance difference value delta L and a distance threshold value, the electric heating power of the air conditioner outdoor machine chassis is controlled. By detecting an icing thickness, the electric heating power is controlled, the electric heating power can be accurately controlled according to different icing thicknesses, and meanwhile, the electric heating power is controlled in real time according to the actual icing condition, and the energy consumption of an air conditioner can be lowered.

The invention discloses a control method for a cooling water machine unit with an evaporative type condenser. The control method comprises the following steps: calculating real-time power, real-time capacity and energy efficiency ratio of the machine unit; judging whether the energy efficiency ratio calculated currently is greater than the energy efficiency ratio calculated previously; if the energy efficiency ratio calculated currently is greater than the energy efficiency ratio calculated previously, increasing the rotating speed of a fan or increasing the water flow rate of a spraying structure, calculating the energy efficiency ratio again, and comparing the energy efficiency ratio with the energy efficiency ratio calculated previously; and if the energy efficiency ratio calculated currently is not greater than the energy efficiency ratio calculated previously, regulating the rotating speed of the fan to the last rotating speed or regulating the water flow rate of the spraying structure to the last flow rate. Therefore, good rotating speed of the fan or good water flow rate of the spraying structure are obtained, the machine unit acquires high energy efficiency ratio, the energy efficiency ratio of the machine unit is improved, the purpose of saving energy is achieved, and energy saving control of the machine unit is realized.

The invention provides a refrigeration storage device, a control method and device thereof and a storage medium. The method comprises the steps that after the refrigeration storage device is powered on and runs, the temperature of the environment where the refrigeration storage device is located and / or the door opening conditions of the refrigeration storage device are detected, wherein the door opening conditions include single-time door opening time, cumulative door opening time and / or the number of times of door opening; whether the temperature of the environment and / or the door opening conditions meet preset conditions or not is judged; if not, the refrigeration storage device runs in a first control mode. By means of the scheme, energy-saving control over the refrigeration storage device can be achieved.