81results about How to "Guaranteed electricity demand" patented technology

The invention discloses a transformer area load regulation and control method containing an optical storage charging station, and the method comprises the steps: solving a district load regulation andcontrol multi-target model based on particle swarm optimization, and obtaining the optimal charging starting time of an electric vehicle user and the selected optical storage charging station; and according to the optimal charging starting time of the electric vehicle user and the selected optical storage charging station, guiding the electric vehicle with the charging requirement in the power distribution network to the selected optical storage charging station for charging under the optimal charging starting time. The beneficial effects of the method are that the method carries out the transformer area load regulation and control through combining with the characteristics of a charging load, alleviates the impact caused by the access of the optical storage charging station to a distribution network, and effectively guarantees the transformer area power supply quality; moreover, the method does not need investment of new equipment, and can effectively reduce the load regulation and control cost. 2) the responsivity and satisfaction of the load side are fully considered, the satisfaction is improved while the power demand of the user is ensured, and 3) the economic benefit and theenvironmental benefit are both considered, the load variance can be effectively stabilized, and the carbon emission is reduced.

The invention discloses a fuzzy decision method for an island micro-grid including a wind-solar-diesel-battery and seawater desalination system. Aiming at the problems that the operation state of a distributed power supply in an island micro-grid system generally has fluctuation, randomness and difficult predictability, and difficult matching exists between power supply and consumption loads of the system in an off-network state due to the above reason and the like, the charging and discharging states of an energy storage unit generally equipped on an island and the workbench time and the workbench number of the seawater desalination system are adjusted and controlled by taking the generation and consumption relationship (GCR) of a real-time acquisition system, remaining amount of freshwater (RAF) of a seawater desalination system (SDS) and the state of charge (SOC) of a storage unit (SU) as control inputs of the decision system; therefore, the micro-grid system can absorb excess generating capacity of the distributed power supply (DG) and fill missing loads; and simultaneously, the lowest electricity and water demands of users on the island can be ensured when diesel consumption is reduced to the most extent by deciding the switching time and duration of a diesel generator system (DGS).

The invention relates to a water level measurement and forecast device using a solar photovoltaic power generation system to supply power to a water level sensor, which belongs to the technical field of new energy Internet of things. Sunlight is irradiated to solar cells mounted on a photovoltaic power generation pillar and a sun-chasing device for generating current, the current passes through a conductive wire for supplying the power to a buoyancy device, the water level sensor and a wireless transmitting antenna, when river water rises, the buoyancy device soaked in the river water relies on buoyancy for pushing the water lever sensor and the wireless transmitting antenna to slide along the edge of a water level measuring scale and further rise to the horizontal plane; when the water river falls, the water level sensor, the wireless transmitting antenna and the buoyancy device can slide along the edge of the water level measuring scale by relying on gravity and further fall to the horizontal plane. The water level sensor can convert sensed data of length changes of sliding along the edge of the water level measuring scale due to rising and falling of water level of the water river in a river bed, namely the data of the changes of the water level to electrical signals, and the electrical signals of measurement and forecast of the water level changes are sent into the air through the wireless transmitting antenna.

The invention provides a microgrid system with a movable hydrogen energy emergency power supply. The microgrid system comprises a moving unit and a fixed unit detachably connected with the moving unit; the moving unit comprises a first fuel cell power generation unit, a storage battery, a first interface and a second interface which are connected to a direct current bus; the first interface is used for being connected with a hydrogen storage system stored with hydrogen, and the second system interface is used for being connected with a small turbine generator system (LLS) of a nuclear power plant, so that the moving unit serves as an electric emergency power supply for a factory; the fixed unit comprises a power generation unit detachably connected with a direct current bus, a DC/AC bidirectional converter unit connected to an alternating current bus, a load power supply unit, a grid-connected switch and a hydrogen production device; the first direct current bus is provided with a third interface and a fourth interface, wherein the third interface is used for being detachably connected with the DC/AC bidirectional converter unit; and the fourth interface is detachably connected with a photovoltaic power generation unit. According to the microgrid system, the defects existing in the existing electric emergency power supply of a nuclear power plant factory are overcome, and the nuclear safety can be greatly improved.

The present invention belongs to the technical field of energy recovery, and in particular provides an energy recovery system for an extended-range electric vehicle. The extended-range electric vehicle includes a turbine engine (100), a generator (200), a battery pack (300), a drive motor (400), wheels (500) and a control device (700); the energy recovery system includes a thermal element (600), the thermal element (600) is connected with the control device (700) and the turbine engine (100), and used for converting braking energy of the wheels (500) into thermal energy for heating intake airof the turbine engine (100). According to the invention, the braking energy of the extended-range electric vehicle is converted into heat energy by installing the thermal element, and is used for secondary heating of the gas entering a combustion chamber, thereby improving the temperature of intake air of the combustion chamber, so as to improve the power generation of the unit fuel, the enduranceof the extended-range electric vehicle is prolonged.

The invention discloses an intelligent terminal power supply integrated health measurement and assessment system and an assessment method thereof. The system comprises a vital sign monitoring device and a sleep management system which is in wireless connection with the vital sign monitoring device, the vital sign monitoring device comprises a radar wave transmitting and receiving device, an analog signal processor and a digital signal processor, the sleep management system comprises a cloud server, a network platform and an intelligent terminal, the radar wave transmitting and receiving device and the digital signal processor are both connected with the analog signal processor, and the radar wave transmitting and receiving device, the analog signal processor and the digital signal processor are all connected with a controller and a power source. By means of the intelligent terminal power supply integrated health measurement and assessment system and the assessment method thereof, parameters of a measurement target such as the body composition and the electrocardiogram can be measured at any moment, a health assessment report can be worked out in real time, tracking management is conducted in real time, service is provided in real time, integrated power supply is adopted for a mobile health measurement device and the intelligent terminal, power supply is reliable, and the system is convenient to use, good in reliability, diversified in function, excellent in performance, low in cost, great in practicability and convenient to apply and popularize.

The invention provides a blood collecting vehicle and a power supply device and a power supply mode of blood collecting vehicle-mounted equipment. The blood collecting vehicle comprises a vehicle body and an electric load device installed in the vehicle body. The blood collecting vehicle is characterized in that a chargeable lithium battery pack is installed in the vehicle body and connected with the electric load device, and supplies power to the electric load device, a solar cell panel is installed outside the vehicle body and connected with the lithium battery pack to charge the lithium battery pack, and the lithium battery pack can be connected with a direct current charging pile and charged through the direct current charging pile. The blood collecting vehicle has the advantages that as the blood collecting vehicle is provided with the chargeable lithium battery pack and the solar cell panel, when an external power source of the blood collecting vehicle is not stable or the blood collecting vehicle can not be connected with the external power source, the chargeable lithium battery pack charged in advance can be used, and the solar cell panel can be utilized for charging the chargeable lithium battery pack continuously so that the blood collecting vehicle can run smoothly.

A portable microbiological incubator comprises a box body and a box cover, a control circuit board, a heater and a liquid crystal display screen are respectively arranged inside the box cover, the heater and the liquid crystal display screen are respectively electrically connected with the control circuit board, a power supply and a culture paper holder are arranged in the box body, the power supply is connected with one end of a power switch arranged on the side of the box cover through a wire, the other end of the power switch is respectively connected with the control circuit board, the heater and the liquid crystal display screen, an insulating cavity for insulation is also embedded in the box body, and the culture paper holder is located in the insulating cavity. The portable microbiological incubator is easy to operate, moreover, both the upper box body and the lower box body are provided with special locks when the portable microbiological incubator is opened for sampling and the cover is closed for movement, so the reliability of the equipment is enhanced, and the portable microbiological incubator can continuously operate for more than ten hours. The portable microbiological incubator has the characteristics of small size, light weight, easiness in operation and the like, and is applicable to the field detection and culture of bacteria in water sources and food under various natural disaster conditions and during the field operation of troops.

The invention discloses an all-weather solar wireless intelligent lighting system based on double batteries. The all-weather solar wireless intelligent lighting system based on double batteries comprises a double-battery lighting subsystem, a ground photovoltaic power station, a battery charging network, and a wireless remote monitoring control subsystem. The double-battery lighting subsystem comprises a double-battery set composed of a memoryless lithium battery and a memory lead-acid battery and is used for providing all-weather light for users. The ground photovoltaic power station is used for absorbing solar energy and converting the solar energy into electric energy, charging the memory lead-acid battery, and providing required full-load electricity for the memory lead-acid battery. The battery charging network is used for connecting the memory lead-acid battery with the ground photovoltaic power station, transmitting required electricity for the memory lead-acid battery, and enabling the double-battery set to fully meet the electricity demand of a light source. The wireless remote monitoring control subsystem is sued for monitoring, acquiring, transmitting and storing battery capacity and outdoor light, processing the acquired information, and determining whether to control charging and discharging of the batteries or not and whether to remotely control on, off, duration and brightness of lamps or not.

The invention discloses a method for intelligent control on power utilization based on Internet of Things. The method comprises the steps of receiving the illuminance collected by an illuminometer from an indoor preset apparatus, comparing the received illuminance with an illuminance threshold value, and then generating illuminance information; receiving the number of indoor staff and the distribution region collected by an indoor infrared sensor, and then generating the indoor staff information; obtaining the information of the operating electric equipment in the room based on a digital addressable lighting interface protocol; receiving the indoor temperature information collected by an indoor temperature sensor; transmitting the illuminance information, the indoor staff information, the electric equipment information and the indoor temperature information to a controller; receiving an indoor power utilization control instruction through the network; sending the indoor power utilization control instruction to an indoor electric equipment relay so as to control the on and off states of the indoor electric equipment, judging the actual on-off sates of each indoor electric equipment according to the current information in the circuit of each indoor electric equipment, and feeding back the actual on-off states to the controller. By adoption of the method and the system, intelligent real-time monitoring on the indoor power utilization condition can be realized.

The invention relates to a fuel cell emergency power generation system based on a solid hydrogen storage technology. The fuel cell emergency power generation system comprises a fuel cell, a first hydrogen storage device, a second hydrogen storage device and a hydrogen supply channel, wherein the fuel cell can supply power to the system and other external equipment; the first hydrogen storage device can release hydrogen at a relatively low temperature, and generally, the environment temperature is minus 15 DEG C; the second hydrogen storage device can release hydrogen at normal temperature, and generally, the environment temperature is 25 DEG C; and the hydrogen supply channel can convey hydrogen released by the first hydrogen storage device and the second hydrogen storage device to the fuel cell. By switching the hydrogen supply modes of the first hydrogen storage device and the second hydrogen storage device, hydrogen can be supplied to the fuel cell under the conditions of lower temperature and normal temperature, so that the fuel cell can respond to the power demand at any time at different temperatures and immediately enter a working state, and the problems that a certain time needs to be consumed in the heating process of an existing solid hydrogen storage device, and the device is difficult to guarantee hydrogen supply to the fuel cell rapidly are solved.

The invention discloses a method and a structure for installing an electricity generator on an unmanned plane. The electricity generator is a JF 3.5kw/28V direct-current electricity generator, wherein the input shaft of the electricity generator is a spline shaft; the radial runout of the spline shaft is not more than 0.2mm; and the input shaft of the electricity generator is rigidly connected with a flying wheel plate of an output shaft of an engine directly through a coupler, so that the output torque of the engine is ensured to be quickly and accurately transmitted and the power loss is minimal in a transmission process. By the method and the structure, the installation is reliable, the running is stable, overmuch engine output power is not used, the power demand of pickaback and task equipment of the unmanned plane can be ensured when the unmanned plane flies, the engine output power consumed by the electricity generator is ensured to be minimal when power equipment normally runs, and the working efficiency of the 3.5kw/28V direct-current electricity generator is improved.

The invention provides railway train reconnection induction communication equipment and an anti-interference method. A wireless digital induction communication radio station is arranged on a locomotive and is used for sending or receiving a reconnection induction communication signal. When the wireless digital induction communication radio station sends the reconnection induction communication signal, spread spectrum modulation is carried out by adopting a signal bandwidth expanding mode; when the wireless digital induction communication radio station receives the reconnection induction communication signal, a useful signal is extracted by adopting a mode of separating the strongest useful signal from multipath signals to carry out spread spectrum demodulation; the high-gain rod-shaped coupling sub-antenna is installed on a wireless digital induction communication radio station, and couples the reconnection induction communication signal to an electric power contact network in a wireless coupling mode. The anti-interference wave trapper is connected in series between a pantograph and a conducting rod on the roof of the locomotive. According to the method disclosed in the invention,the anti-interference capability of the induction communication signal of the multi-locomotive is improved, and the signal attenuation phenomenon caused by multipath interference in wireless communication is eliminated.

The invention relates to an intelligent safety helmet, in particular to an intelligent safety helmet used for a patrol inspection system of a power plant. The power supply system is electrically connected with a microprocessor controller, an image acquisition module, an image processing module, a communication module, a GPS positioning module, an audio data playing unit and an audio data acquisition module. The micro-processing controller is connected with the image processing module, the communication module, the GPS positioning module, the audio data playing unit and the audio data acquisition module, and the image acquisition module is connected with the image processing module. The microprocessor controller is also connected to the background terminal signal. The invention not only hasthe necessary safety protection functions for patrolling inspection personnel, but also has the functions of intelligent communication, designated route navigation, video recording, GPS positioning,data uploading and the like.

The invention provides cooking equipment and a control method of the cooking equipment. The cooking equipment comprises a cleaning device, a discharging device, a drying device, a conveying device, acooking body and a power supply device, wherein the cleaning device is used for cleaning food materials and comprises a cleaning cylinder, and a feed inlet, a discharging opening and a drainage hole used for drainage are formed in the wall of the cleaning cylinder; the discharging device is connected with the feed inlet and used for conveying food materials into the cleaning cylinder; the drying device is connected with the cleaning cylinder and used for drying the cleaned food materials; the conveying device is connected with the cleaning cylinder and used for conveying the dried food materials to the cooking body through the discharging opening; the cooking body is connected with the conveying device and used for cooking the food materials; the power supply device is used for supplying power to the cooking equipment. According to the technical scheme, a series of operations including feeding, discharging, cleaning, conveying, cooking and the like of the food materials like rice can be automatically achieved so that the food materials such as rice can be automatically cooked from discharging to cooking; meanwhile, due to the arrangement, the food materials such as rice are cleaned, dried and then separately conveyed to the cooking body so that the reliability of products can be ensured.

The invention provides a circular sensor array for measuring current, which comprises a circular-ring-shaped PCB. N magnetic field sensors are uniformly arranged on the circular-ring-shaped PCB, n is an integer greater than or equal to 2, and the n magnetic field sensors form the circular sensor array. When the circular sensor array is used for measuring current, a conductor of which the current value is to be measured is arranged at the center of the circular-ring-shaped PCB, namely the center of the circular sensor array for detection, so that measurement errors caused by conditions such as wire eccentricity, sensor noise and nearby wire interference can be greatly weakened.

The invention discloses an unpowered loopback auxiliary power supply and self-walking device for locomotives. The device comprises two schemes; in the first scheme, the device comprises a boosting type DC/DC module, a bucking type DC/DC module, a single-phase inverter module, a three-phase inverter module, a traction inverter module and a controller; and in the second scheme, the device comprisesa bidirectional DC/DC primary module, a bidirectional DC/DC secondary module, a single-phase inverter module, a three-phase inverter module, a traction inverter module and a controller. According to the device, a traction motor can be controlled to carry out regenerative braking when being dragged to run, so as to generate power and generate a certain life power supply capacity, so that the operators can watch over on locomotives confidently and securely so as to smoothly complete the locomotive repair/loopback tasks; and DC400V or higher high-power DC power supply can be provided outside thelocomotives to realize shunting operations under speed limiting requirements.

The invention discloses an intelligent household electric energy control system using hybrid green energy. The system comprises a power generation device, a current monitoring unit, a storage battery pack, a PWM (Pulse Width Modulation) controller, a direct current lighting lamp, an inverter, an intelligent regulation and control module, an alternating current power distribution box, an alternating current household electrical appliance, an electrical appliance monitoring unit, a central controller, a network transmission module and a remote control terminal, wherein the power generation device is connected with the storage battery pack through the current monitoring unit; the storage battery pack is used for providing power for the household electrical appliance; the central controller is connected with the current monitoring unit and the electrical appliance monitoring unit respectively; a control end of the electrical appliance monitoring unit is connected with a control end of the household electrical appliance; the remote control terminal is connected with the central controller through the network transmission module. Since direct current output and alternating current output of green energy generating capacity are optimally proportioned through intelligent analysis by the storage battery pack, the loss in an inversion process is reduced, the service life of the direct current lighting lamp is prolonged, and the working efficiency of the entire set of system is improved.

The invention discloses an energy storage power station, which comprises a solar photovoltaic module, a super capacitor, a lithium titanate battery, a two-way DC/DC converter and a DC/AC inverter, wherein the solar photovoltaic module is connected with the super capacitor; the super capacitor is connected with the two-way DC/DC converter and the DC/AC inverter through a first controller; the two-way DC/DC converter is connected with the lithium titanate battery; and the DC/AC inverter is connected to a power grid. According to the technical scheme, cooperative electric energy storage is carried out by the super capacitor and the lithium titanate battery; the electric energy received and converted by the solar photovoltaic module can be stored into the super capacitor and the lithium titanate battery when the power utilization demand is quite low respectively; the electric energy in the power grid can be transmitted to the lithium titanate battery for unexpected needs through the super capacitor; the electric energy can be transmitted to the power grid through the super capacitor during peak hours; and the electric energy which is stored in the lithium titanate battery in advance is supplemented to the super capacitor, so that the super capacitor has continuous transmission capacity.