75results about How to "Low electricity price" patented technology

The present invention discloses a method of utilizing distributed energy and temporary additional electricity price to optimize control cooperatively. The method comprises the steps of S1 determining power supply areas and a grid structure; S2 predicting the morrow RDG output and the user original load; S3 calculating the user load after the time-of-use electricity price; S4 carrying out the day-ahead optimization scheduling on the power supply areas, and starting a standby set in necessity; S5 gathering the output of the standby set; S6 carrying out the intra-day rolling calculation, namely controlling the RDG output and the user load according to the temporary additional electricity price; S7 gathering the RDG output reduction quantity and the user load reduction quantity. According to the present invention, a more flexible and changeable and more reasonable scheduling mode is provided for an active power distribution network, and fully embodies the distributed energy real-time scheduling control capability, the load flow bidirectional management capability and the distributed energy admission capability required by the active power distribution network, thereby improving the overall operation stability and robustness of the power distribution network.

The present invention discloses a smart power supply system for electrical appliances, using a rechargeable power storage device, a logic controller, and a learning controller, to control and minimize electricity consumption from mains power during standby. In standby mode, when only a small amount of electrical power is needed, energy from the power storage device is used and mains power is disconnected unless the power storage device requires a recharge. A logic controller senses the appliance's operating state, using it to determine when power should be supplied from mains power or the power storage device. A learning controller monitors and stores historical characteristics of the power storage device's charge and discharge cycles, using them to automatically calculate new recharge cycle parameters to minimize mains power consumption. An external input and output module enable users, computers and electronic devices to interact and program the learning controller.

The invention discloses a multi-energy online control system for data centers under dynamic cloud service requests. The multi-energy online control system for data centers under dynamic cloud service requests comprises a system status monitoring module, a load scheduling module and a multi-source energy supply system management module, wherein the load scheduling module comprises a delay-sensitive request scheduling sub-module and a delay tolerant job scheduling sub-module. The system status monitoring module is used for receiving service requests from a user's cloud service every once in a while, determining whether the cloud service request is a delay-sensitive request or a delay tolerant job, and sending the cloud service request belonging to the delay-sensitive request to the delay-sensitive request scheduling sub-module of the load scheduling module while sending the cloud service request belonging to the delay tolerant job to the delay tolerant job scheduling sub-module of the load scheduling module. The multi-energy online control system for data centers under dynamic cloud service requests has the advantages that long-term operating cost of data center energy supply system can be optimized, no system data is needed to be obtained in advance, and no steady state distribution is needed to be assumed.

The invention is a wind power generator, comprising pillar and pillar tensioning ring, where the pillar tensioning ring is connected with tensioning steel rope, a device for wind vane to connect with generator casing is above the tensioning ring, the top end of the pillar is equipped with wind vane beam mount, and a cable is connected from the generator in the generator casing to a generator set control room and the control room is connected with external electric network through cable. And this sail-like wind vane with strong wind catching ability stands up against the wind on the beam mount and falls down reversely, can generate huge torsion force by weak wind, implements anti-vibration auto control, hydraulic auto adjustment, horizontal rotation as horizontal arranged, vertical rotation as horizontal arranged, and horizontal rotation as vertical arranged, and is supported by the pillar, the horizontal grid of steel rope tensions and fixes the wind power generator, and the foundation construction investment is less, the economic property is remarkable, and the wind catching ability is strong, and the invention has features of larger erection height, good stability, large unit capacity, strong anti-damage ability, and wide application range. And the generated power is a clean renewable electric energy.

The invention discloses a JFET (Junction Field Effect Transistor) and a manufacturing method thereof, and a micro inverter using the JFET. The JFET comprises a drain ohmic contact electrode, a substrate, a SiC drift layer, an N-type SiC channel layer, an N-type SiC ohmic contact layer and two gate Schottky contact electrodes. The manufacturing method comprises the following steps of providing the substrate; forming a SiC epitaxial layer; forming the N-type SiC channel layer and the SiC drift layer; forming the N-type SiC ohmic contact layer; forming drain and source ohmic contact electrodes; and forming the two gate Schottky contact electrodes. The micro inverter comprises capacitors C1, C2 and C3, an inductor L1, a JFET1, a JFET2 and a JFET3, and silicon carbide Schottky diodes D1, D2, D3 and D4. According to the JFET, the manufacturing method thereof, and the micro inverter, the realization is convenient, the cost is low, the working frequency and the working reliability of the micro inverter are improved, the loss and the price of electric energy are reduced, and the practicality is high.

The invention relates to a heat energy conversion and utilization technology, in particular to an energy storage heat pump air conditioner which can solve the problems that an existing mainstream heat pump can not utilize peak-valley electricity and reduce the running time of a host during peak electricity at night, the energy storage heat pump air conditioner comprises an energy storage device, a cold and heat source tower and a heat pump host, two pipelines are arranged between the energy storage device and the heat pump post, a first pump is arranged on one pipeline, and a first shut-off valve is arranged on the second pipeline; two pipelines are arranged between the cold and heat source tower and the heat pump post, a second pump is arranged on one pipeline, and a second shut-off valve is arranged on the other pipeline; a first interface is arranged between the energy storage device and the first shut-off valve, a second interface is arranged between the cold and heat source tower and the second shut-off valve, and a third shut-off valve is arranged between the first interface and the second interface; and a third interface is arranged between the heat pump host and the first pump, a fourth interface is arranged between the cold and heat source tower and the second pump, the third interface and the fourth interface are connected by using the pipeline, and a fourth shut-off valve is arranged between the third interface and the fourth interface. The energy storage heat pump air conditioner can reasonably utilize the peak-valley electricity and reduce the running power fare.

The invention discloses a method for driving high-temperature liquid metal to flow circularly to cool internal components of a reactor. According to the method, the liquid metal flows out of a left-side metal tank and then flows to the internal components of the reactor under the action of high-pressure (2MPa) inert argon; the high-temperature liquid metal carries out nuclear heat, then flows to a heat exchanger, exchanges heat with a secondary loop working medium, and finally flows to a left-side metal tank. When the liquid level of the liquid metal is reduced to a specified value, a control system controls an electromagnetic directional valve to switch, and the left-side metal tank and the right-side metal tank are respectively deflated and inflated to reach specified pressure. Hydraulic control one-way valves are controlled to be switched on; the liquid metal flows through the internal components of the reactor from the right-side metal tank; the high-temperature liquid metal is then subject to heat exchange and flows into the left-side metal tank. According to the invention, the high-temperature liquid metal is periodically and circularly driven to flow stably to cool the internal components of the reactor; as the system adopts the high-pressure inert gas to drive the high-temperature liquid metal to flow, the limit of using an electromagnetic pump to drive the high-temperature liquid metal is overcome and the high-temperature liquid metal in an advanced reactor can flow circularly.

The invention relates to a method for producing pyromellitic dianhydride, which solves the problems of high energy consumption, high treatment cost of 'three wastes' and the like in the conventional production process. The process of the method comprises the following steps: 1, oxidization, namely taking durene and the air as raw materials, performing an oxidizing reaction in the presence of a catalyst at a high fused salt temperature in a reactor to prepare a gaseous phase mixture, and recovering a semi-finished product of crude anhydride through three tandem cold-traps; 2, discharging, namely cleaning raking out all crude anhydride in the cold-traps; 3, hydrolysis and centrifugation, namely heating the crude anhydride prepared by oxidation by steam in a soft water hydrolysis kettle to form liquid through smelting, hydrolyzing the liquid to form pyromellitic methanoic acid, performing recrystallization after the decoloration by activated carbon and heat filtration, and obtaining the eligible pyromellitic methanoic acid and crude tetracid crystals through centrifugation; and 4, performing dehydration and sublimation to obtain a product of the pure pyromellitic dianhydride. The method reduces the energy consumption, and can save the production cost of 1 million Yuan in the production of 100 tons of pyromellitic dianhydride.

The invention provides a lowest equivalent electrovalence-of-system-based microgrid system design scheme and a test platform. Each subsystem of a microgrid system at least comprises a wind generator set, a photovoltaic set, an energy storage device, a water turbine set, a diesel engine set or a gas engine set. The structure of the microgrid system is determined through analyzing different load characteristics, natural resources and power supply types of the subsystems of the microgrid system; electric cost models of the subsystems of a microgrid are established; change parameters such as the investment cost of microgrid construction, the equivalent cost of power generation and load power demand increases are comprehensively considered to carry out distributed generation power supply selection and capacity configuration; and the microgrid system is established employing the lowest equivalent electrovalence of the system as the target, so that the microgrid system design scheme meeting the economic requirements is rapidly obtained; and the microgrid system test platform is formed by adopting an MVC mode.

The invention discloses a deployment method of a distributed power supply system. The method is executed by a computing device. The method comprises the steps of establishing a generating capacity planning model of the distributed power supply system, wherein the control variables of the generating capacity planning model include the installation position and the generating capacity of each distributed power supply, and the line loss minimization and the generating capacity maximization of the distributed power supply system are adopted as a target; subjecting the generating capacity planning model to iterative solving based on a predetermined algorithm so as to respectively obtain an optimal solution for the installation position and the generating capacity of the distributed power supply; adopting the optimal solution as the planning scheme of the distributed power supply system; calculating the net present value of the distributed power supply system according to the planning scheme of the distributed power supply system; subjecting the planning scheme to feasibility analysis; and adjusting the planning scheme according to an obtained analysis result. The invention also discloses a deployment device and a computing device corresponding to the distributed power supply system.

The invention discloses a coastal electricity system for supplying power to ships, and an electrical system for ships. The coastal electricity system comprises at least one isolation transformer with an automatic voltage regulating function, at least one costal power box and a control system, wherein the input end of the isolation transformer is used for connection with the power output end of factory power of a thermal power plant, the output end of the isolation transformer is used for connection with the coastal power box; the coastal power box is used for connection with power supply interfaces of the ships through cables and connection with electrical signal interfaces of the ships through signal lines; and the control system is used for receiving electrical signals of the ships, transmitted by the coastal power box and coastal power box information, and according to the electrical signals and the coastal power box information, controlling the coastal power box so as to conduct or break connection between the power supply interfaces and the power output end. The coastal electricity system provided by the invention has the advantages of being simple in structure and easy to operate, saving electricity bills for the ships and being safe and reliable.

The invention relates to the technical field of clean energy and water electrolysis hydrogen production, in particular to a water electrolysis hydrogen production system, which comprises a hydroelectric generation system, an electric power storage system, a water electrolysis hydrogen production system, a hydrogen purification system and a hydrogen storage system, wherein the lower side of the hydroelectric generation system is provided with the electric power storage system; the water electrolysis hydrogen production system is arranged on one side of the hydroelectric generation system, the hydrogen purification system is arranged at one end of the water electrolysis hydrogen production system, and the hydrogen storage system is arranged at one end of the hydrogen purification system. Inthe invention, by arranging the hydroelectric generation system, the hydrogen storage system, the water electrolysis hydrogen production system and the hydrogen purification system, waste water is used for power generation, energy waste is avoided, the electricity price is low, on-site hydrogen production is achieved, and energy storage is facilitated.

The invention relates to a comprehensive utilization method of heat energy in a potassium perchlorate production process, which belongs to the technical field of potassium perchlorate production. The invention aims to solve the technical problem of providing a new heat supplying method for the technical field of potassium perchlorate production, increases energy utilization efficiency and solves environmental pressure caused by the three wastes generated by the coal consumption of a boiler. The invention has the technical schemes of: heating by adopting high-temperature heat conducting oil, in particular to a conduction process that after the heat conducting oil is heated, transmitting heat to materials which need to be heated to cause that the temperature of the heat conducting oil is reduced, and repeatedly heating. The comprehensive utilization method increases energy utilization efficiency and reduces the environmental pressure caused by the three wastes generated by the coal consumption of a boiler, and otherwise, the comprehensive utilization method increases continuous production capacity, is suitable for large-scale production requirements and breaks the tradition that a perchloric acid double-decomposition process is only heated by steam in a long period.

The present invention provides a cooling system-containing gondola lift having a capacity for at least one passenger, the gondola lift comprising a cabin and a cooling system installed in the cabin, wherein the cooling system comprises: a porous case having a plurality of holes; a block of ice disposed in the case; a liquid container connected to the case for housing the liquid melted from the block of ice; and an atomizer for atomizing the liquid melted from the block of ice.

The invention provides an outdoor energy storage charging system comprising an integrated cabinet. The input terminal of the integrated cabinet is connected to a transformer with commercial power and the output terminal of the integrated cabinet is connected with a plurality of charging devices. A high-voltage control cabinet, a central processing cabinet and an energy storage battery pack that are connected successively are arranged inside the integrated cabinet. The high-voltage control cabinet is used for voltage transformation, rectification, discharge outputting and charging inputting control of the system; a GPRS receiving and sending antenna is arranged at the high-voltage control cabinet to realize wireless alarming to a remote control center terminal. The central processing cabinet is used for collecting battery information of the energy storage battery pack. A plurality of energy storage battery pack units connected in series are arranged inside the energy storage battery pack. IC sensing regions are arranged at the charging devices and charging payment two-dimensional codes are arranged in the IC sensing regions. The outdoor energy storage charging system having a large coverage range is used convenient; and a peak-load shifting effect is realized, so that the burden is reduced for the daytime consumption of commercial power.

The present invention is electricity generating technology with marine energy, water energy and wind energy. Sea waves in different directions are utilized for generating electricity by means of one novel water wheels with vanes possessing flat or notched upper side and raised lower side. The energy the novel water wheels accepts is amplified in a speed varying system and converted into the fast rotation of rotor in the generator to generate electricity. The sea wave generating apparatus includes concrete pedestal, limited floating box, novel water wheels, generator, etc. When the novel water wheels is reformed into one with planar vane wheel and set in river, one novel water energy generating equipment is formed. Wind energy in sea and river is also utilized in generating electricity simultaneously.

The invention relates to a multi-layer roller hearth waste heat utilization cyclic furnace and a waste heat recovery method applied to the multi-layer roller hearth cyclic furnace. The multi-layer roller hearth waste heat utilization cyclic furnace comprises a furnace body, an elevator, a vacuum ventilation chamber, a material inlet and outlet table, a transmission system and a control system. The transmission system comprises a transmission device which is connected with a motor. The material inlet and outlet table, the vacuum ventilation chamber, the elevator and the furnace body are sequentially connected. An electric furnace door is arranged between the furnace body and the elevator. A furnace shell is arranged outside the furnace body. Multiple heating bodies and at least two layers of in-furnace carrier rollers are disposed in the furnace body. The in-furnace carrier rollers of each layer are arranged on the transmission device. The control system controls forward and reversing transmission of the transmission device and ascending and descending of a lifting movable table. Compared with a continuous furnace and a cyclic furnace in the prior art, the multi-layer roller hearth waste heat utilization cyclic furnace has the advantages that charge capacity is large, the application range is wide, energy consumption for production is low and production efficiency is high.

The invention relates to a management method and device for electric vehicle charging, equipment and a storage medium. The method comprises the steps that a charging request sent by a vehicle owner terminal is received; the maximum charging duration and the minimum charging duration are calculated; calling the predicted charging electricity price of each preset time period; if the charging staying duration is greater than the minimum charging duration, sequentially selecting the time period with the lowest predicted charging electricity price from the time periods; sending a maximum power charging instruction to the target charging pile at the starting time of each selected time period, so that the charging pile charges the automobile at the maximum power until the charging amount reaches the planned charging amount; and if the charging staying time length is smaller than the minimum charging time length, sending a maximum power charging instruction to the target charging pile until the actual charging time length reaches the charging staying time length. The method has the technical effects that the charging process is reasonable and convenient, and meanwhile, the charging cost is saved.