45results about How to "Optimize energy structure" patented technology

A microorganism desulfurizing and sulfur recycling method. A gas material flow containing hydrogen sulfide is fed into an absorption column and then is subjected to chemical absorption with an alkali solution sprayed from the top of the column in a counter-contact manner, wherein treated purified gas is discharged out from the top of the absorption column. A back-washing apparatus is arranged in the absorption column to wash the sulfur attached to a filling material. A rich solution, in which the hydrogen sulfide is dissolved, is fed into a rich solution tank from the bottom of the absorption column and then is fed into a bio-reactor for aeration, so that a carrier, on which desulfurization bacteria is immobilized, is fluidized and the sulfide in the absorption solution is biologically oxidized to generate elementary sulfur. The regenerated solution containing the sulfur then is fed into a settling tank through an overflow weir of the bio-reactor and a supernatant liquid is fed into a barren solution tank. The supernatant liquid then is fed back to the absorption column for being recycled through a barren solution pump. Sulfur slurry in the bottom layer is discharged through the bottom of the settling tank and then is subjected to solid-liquid separation in a centrifugal machine to obtain biological sulfur. A separated filtrate is fed back to the bio-reactor for being recycled. The bio-desulfurization technology is green and environment-friendly, is energy-saving and emission-reducing and can recycle resources, and has social, economical and environmental benefits.

The invention provides a power network development capability comprehensive diagnosis index system establishment method. The method comprises the following steps of 1, establishing a target layer, which is a power network development diagnosis index system; 2, establishing a control layer, which comprises 6 indexes including a power network scale, a power network structure, utilization efficiency, safety reliability, an equipment level and an operation environment; 3, establishing a network layer, which comprises 39 indexes corresponding to the indexes of the control layer respectively; 4, calculating weights omega i of the indexes based on a analytic network process; 5, building an aggregation model; and 6, displaying a diagnosis result. According to the method, in combination with a power network development law, starting from limitations of power network development conditions and external factors, related indexes influencing power network development are selected, and from the perspective of long-term power network development, the limitations of resources such as energy resources, environments, lands and the like on the power network development are considered, so that an innovative index is proposed.

The invention provides a multilayered film used for a solar energy cell, a preparation method thereof and a purpose thereof. The multilayered film comprises the following parts: (1) an amorphous substrate such as metal, glass and ceramic; (2) a plurality of series connected P-N knots formed by III-V family semi conducting materials. In the invention, with a method of peeling off epitaxy, a multijunction film solar energy cell is prepared on the amorphous substrate, material chemical constitution is stable, cost is low, and the cell can be directly assembled on a foldable substrate or other amorphous substrate.

This invention discloses a two-stage method for producing fertilizer and sludge gas from semi-solid organic waste. The method comprises: (1) decomposing semi-solid organic waste in a slightly aerobic condition by microorganisms to generate heat and obtain small molecule substances such as volatile fatty acids; (2) digesting the small molecule substances in an anaerobic condition to generate sludge gas. The final product after treatment is nutritious, and does not have special odor or disease germs, thus is a high quality organic fertilizer. The method has such advantages as no waste discharge and no pollution, and is energy saving.

The invention belongs to the technical field of coupled biomass and coal-fired power generation, relates to a coupled superfine biomass and coal-fired power generation system and method with flue gasdrying and power feeding functions, and is intended to solve the safety problems that, for instance, the coupled biomass gasification and coal-fired power generation technique has complex gasifier structure, high operation control difficulty, high input cost and valve blockage due to coke separation. The system herein comprises a biomass particle preparation system, a biomass particle conveyer system and a biomass particle combustion and flue gas purification system; superfine biomass fuel prepared by the biomass particle preparation system is conveyed into a coal-fired boiler via the biomassparticle conveyer system; part of the flue gas from the coal-fired boiler is delivered to the biomass particle preparation system for delivery and drying of the superfine biomass fuel, and the other part of the flue gas is used for heating air required by combustion of the fuel; the flue gas is discharged before passing through the flue gas purification system. The system and method herein are significant to the enhancement of enterprise economic benefit and surviving capacity.

The invention discloses a method of purifying biogas into natural gas, and is characterized in that after the biogas is subjected to sulfur removal, washing, carbon removal, impurity removal and drying, the content of methane is up to more than 93%, and the biogas reaches standard requirements of the natural gas for vehicles.

The invention relates to a biomass fuel expansion furnace for preparing expanded graphite. The biomass fuel expansion furnace comprises a furnace body, wherein a combustion chamber is formed inside the furnace body; a second air duct is arranged between the combustion chamber and the inner wall of the furnace body; the outer layer of the furnace body is a heat-preservation layer; a graphite flowing expansion pipeline of which one end penetrates through and extends outside the combustion chamber is arranged at the upper part of the furnace body; a biomass fuel feeding hole which is communicated with the combustion chamber is formed in the side wall of the furnace body; a first air duct which is communicated with the combustion chamber and the external environment is arranged inside the furnace body; a slag outlet which is communicated with the combustion chamber is formed in the bottom of the furnace body; an air outlet is formed in the top of the furnace body. The biomass fuel expansion furnace is applicable to biomass fuel to provide a heat source, SO2 discharge can be reduced, the dust standard can be met with low cost, NO<x> generation is also reduced, PM2.5 discharge is reduced, and the idea of low carbon and environment protection can be met; the biomass fuel expansion furnace does not affect the chemical components of expanded graphite worms in a sealed flowing pipeline, and has benefits for later procedures using expanded graphite.

The invention provides an oxygen-doped II-VI semiconductor material, thin-film and prepared solar energy battery. The invention validates that: the II-VI semiconductor material, such as ZnTe, ZnSe or ZnTel-xSex(0<x<1), is doped with oxygen, the conduction band is divided into two or more energy levels, therefore different spectrum is respectively absorbed and the photoelectricity conversion efficiency of the semiconductor material is greatly increased. The oxygen-doped II-VI semiconductor material is formed by spraying high-purity II-VI semiconductor material by passing over a work gas with pressure of 10Torr-100Torr mixed by oxygen with pressure of 1mTorr-1Torr and argon gas at 120-300DEG C, wherein the oxygen-doped concentration is 1018cm-3-1021cm-3 and the thickness is about 500nm-5000nm. The oxygen-doped II-VI semiconductor material does not contains poisonous material and the material chemical structure is stable and the cost is low and the oxygen-doped II-VI semiconductor material can grow on a bendable substrate at lower 200DEG C and be widely used in preparing solar energy batteries, liquid crystal display screens and thin film transistors.

The invention relates to an all-weather dual-DC solar water heating system which is technically characterized in that solar heating is adopted to match with a conventional energy heating device for keeping the basic constant temperature of supply water, The all-weather dual-DC solar water heating system works in the following processes: leading out a water level signal, a water pressure signal and a water temperature signal to a controller after cold water and hot water of a heat storage water tank are mixed; controlling a cold water intake pipeline by the controller; communicating three parallel members with the water tank, a conventional energy heater and water points for switching work; leading out a hot water pipe from the water tank, driving the three communicated and parallel-connected members through a pump; and communicating to switch on or off the conventional energy heater, a solar heat collector and the water points. The working processes can be simultaneously operated or incompletely or cooperatively operated, a normally-open electromagnetic valve is connected with a solar water feeding pipe, a hot water return pipe and a water feeding morally-closed electromagnetic valve for synchronous switching. Every time the solar heat collecting process is over, water of the heat collector and water of the external pipeline are refluxed to the water tank in time. The invention radically solves the problems of freezing prevention and resistance, and the like.

The invention relates to a distributed power heat supply system based on active disturbance rejection control and a method of the system. The method is characterized in that the distributed power heatsupply system serves as a controlled object for analysis, and the input and output amount and control amount are determined; through a tracking differentiator in active disturbance rejection control,the reference input of the controlled object is subjected to a transient process, and differential signals of the reference input are extracted; through an expansion state observer (ESO) in the active disturbance rejection control, uncertain factors and external disturbance in a distributed power heat supply system model are subjected to dynamic observation and estimation; through a nonlinear state error feedback control rule in the active disturbance rejection control, the control amount of the system is formed, and the anti-interference capability of the control is improved; all parts in the control process are subjected to parameter setting, so that the active disturbance rejection control method of the distributed power heat supply system is achieved. The distributed power heat supplysystem has a large effect of pushing forward the enforcement of the governmental policy and guideline about power replacement, the discharge of urban pollutants is significantly reduced, and the quality of the living environment of people is improved.

The invention provides a production and use method of biomass new energy as the biomass new energy serving as renewable energy is wide in prospect. The method includes: carbonizing biomass, performing depth crushing for the carbonized biomass, and then directly using the crushed powdered carbon as fuel of engines. The invention further provides a 'carbon engine' capable of directly using carbon as fuel, and the 'carbon engine' provides a novel direction for design and development of future engines. Besides the developmental directions of biodiesel and bioethanol, the new energy technology provides a novel developmental direction for development of the new biomass energy.

The invention belongs to the category of metallurgical chemical technology, in particular to a method and a device for using gas produced by a COREX smelting reduction furnace to produce a methanol. The COREX smelting reduction furnace is not only a COREX iron smelting reduction furnace but also a gas making furnace on a methanol production line. A methanol plant uses the gas produced by the COREX smelting reduction furnace to produce the methanol; the purge gas produced in the synthesis process of the methanol is resent to a steel plant as fuel after hydrogen extraction. A gas pipeline of the COREX smelting reduction furnace is connected with the methanol plant and a purge gas pipeline of the methanol plant is connected with a hydrogen making station, and an exhaust gas pipeline is connected with a palletizing plant. Aiming at the problem of shortage of petroleum resources in China, the invention uses the gas produced by the COREX smelting reduction furnace to produce the methanol which can not only be taken as a chemical material but also can be burned with a gasoline or made into the gasoline, thereby being beneficial to improvement of the energy structure of China. Simultaneously, the invention is also a resource of joint production of steel and coal chemical industry, is the most economical circular economy technique in energy utilization, and is the innovative technique of cleaning production.

The invention discloses a power grid electric power and electric quantity balancing method. The method comprises the steps of setting a power generation sequence and establishing an electric power andelectric quantity balancing model. According to the electric power and electric quantity balancing method, based on the principle of safe and reliable power supply, on the basis that the load requirement is met, how to achieve collaborative optimization of energy such as wind, light, water and fire is considered so as to achieve multi-target benefits, and operation is conducted under the condition that economy is achieved as much as possible; renewable energy sources in a domain are preferentially consumed, environmental pollutant emission can be effectively reduced by equivalently replacingthermal power, and development and utilization of the renewable energy sources play a very important role in optimizing an energy structure; the electric power and electric quantity balancing method is high in practicability and high in generalization performance.

The invention discloses a household light hydrocarbon bubbling gas making device, and belongs to the technical field of fuel gas application. The device comprises a body, wherein a gas making tank anda liquid storage tank with a bottom communicated with the gas making tank through an oil hole are arranged in the body in a closed mode, light hydrocarbon oil is arranged in the liquid storage tank and the gas making tank, a gasification bed communicated with a fan through a gas inlet pipe is arranged in the gas making tank, the fan is communicated with a gas inlet hole, the gasification bed is arranged below a light hydrocarbon oil gas-liquid boundary, and a gas outlet pipe communicated with gas consumption equipment is arranged in the gas making tank. According to the invention, by using cavitation effect and heat effect, light hydrocarbon oil is subjected to bubbling gasification, so that the work is table and reliable, the gasification effect is good, the safety coefficient is high, various requirements of users are met, the utilization ways of light hydrocarbon fuel gas are enriched, light hydrocarbon fuel gas can be used as primary energy to replace secondary energy such as liquefied gas, diesel oil, electricity and the like, and important strategic significance and practical significance are provided for optimization of energy structure and improvement of energy utilizationrate.

The invention discloses a variable cross section truss type tower crane overlength adhesion construction method. An adhesion frame of a tower crane and a building are included, the adhesion frame comprises a first corner and a second corner which are used for connection, an adhesion rod set comprises a first adhesion rod, a second adhesion rod and a third adhesion rod, the first adhesion rod enables the first corner and a first part of a building body to be in adhesion connection, the second adhesion rod enables the second corner and the first part of the building body to be in adhesion connection, the third adhesion rod enables the second corner to be in adhesion connection with the second part of the building body, and the first adhesion rod and the second adhesion rod are in hinged connection with an embedded wall plate through a double lug plate pin shaft. The material strength is sufficiently used, material is saved, self weight is reduced, rigidity is increased, the adhesion distance needs of the tower crane with the length of 15 to 30 meters can be met, the safety property is improved, and the service life of the tower crane can be prolonged.

The invention relates to a multi-short-distance stopping type electric aircraft transportation system based on smart power grids. In order to solve the problem that fast traffic is in shortage among small and medium-sized cities, according to the multi-short-distance stopping type electric aircraft transportation system based on the smart power grids, low-altitude aircraft airlines and electricity storage electric aircrafts are arranged between adjacent small and medium-sized cities or between adjacent satellite cities of a central city. Small-sized airports are built in the small and medium-sized cities and the satellite cities, and are used for take-off and landing of the electric aircrafts, each electricity storage electric aircraft is provided with a super-capacitor electricity storage power source device, each small-sized airport is provided with a super-capacitor electricity storage station which can obtain off-peak electricity from the smart power grids, and when each electricity storage electric aircraft stops in one small-sized airport, the corresponding super-capacitor electricity storage power source device of the electricity storage electric aircraft carries out rapid charging through a charging system and the super-capacitor electricity storage station of the small-sized airport where the electricity storage electric aircraft stops. The multi-short-distance stopping type electric aircraft transportation system based on the smart power grids has the advantages that the advantage of supplementing electric energy and the advantage of surplus the off-peak electricity of the smart power grids is made full use of, the new domestic demand for clean pollution-free electric power energy is expanded, the energy structure is optimized, the urgent requirement of the small and medium-sized cities and the satellite cities of the central city for fast traffic is met, the occupied area is small, investment is small, operating cost is low, the process of economic integration of the small and medium-sized cities can be remarkably promoted, optimal configuration of resources among the small and medium-sized cities can be remarkably improved, and development power of the small and medium-sized cities is stimulated.

The invention belongs to the technical field of electric power grids, and particularly relates to a large electric power consumer electric quantity and electricity charge analysis and governance method based on a cloud platform. The method comprises the steps of building an electric quantity and electricity charge analysis and governance service application platform for large electric power consumers; establishing a large electric power consumer file; establishing an electric energy quality analysis and governance service module; establishing a reactive power electric quantity analysis and governance service module; establishing an electricity utilization safety monitoring management service module; establishing a multi-loop electric quantity and electricity charge analysis service module; establishing a transformer area loss and line loss analysis and governance service module; and establishing an electricity charge analysis optimization scheme service module. According to the invention, the overall energy consumption condition is mastered for large electric power consumers, the energy consumption structure is optimized, and the power consumption cost is saved. According to the method, the problem of how to optimize and select the basic electric charge pricing mode during service expansion electricity consumption or service expansion change is solved, a user can select or change the pricing mode according to the maximum demand of actual electricity consumption to achieve minimum basic electric charge expenditure, the maximum demand contract approval value is reasonably determined, and the electric energy use efficiency of an enterprise is improved.

The invention provides suspended type hydraulic wave power generation equipment and belongs to the field of renewable energy sources. The suspended type hydraulic wave power generation equipment is structurally different from domestic existing wave power generation technologies and comprises suspension supports, ball cups, balls, ball caps, hydraulic cylinders, single-piston dual-output rods, pressure oil outlets, high-pressure oil outlets, oil return ports, hydraulic cylinder fixing plates, fasteners, cables and the like. The bull cups are mounted on the suspension supports which are uniformly mounted at top ends of guide columns of a floating wave power generation station, and the balls and the upper ends of the piston rods are suspended and connected by the ball cups. The hydraulic cylinders, a buoyancy chamber and a power generation compartment of the wave power generation station are connected into a whole through the fixing plates. The buoyancy chamber along with waves moves up and down along the guide columns to drive the hydraulic cylinders to reciprocate on the fixed single-piston dual-output rods via the power generation compartment, and hydraulic motors is driven to rotate by pressure oil through the pressure outlets or the high-pressure outlets so as to drive power generators to generate power.

The invention provides a combined wave power station and belongs to the field of renewable energy sources. The structure of the combined wave power station is different from the existing wave power generation technology in the world and adopts a brand-new technology consisting of multiple sets of wave power stations, a soft capsule platform, a hard ballast tank, a heave plate, a center post, a bracket, an anchor chain, a piled anchor and the like, wherein the soft capsule platform is a carrier of the combined wave power station; multiple wave power stations are arranged around the soft capsule platform at equal distance; the lower end of a main body upright post of each wave power station is connected with the heave plate; the upper end of the main body upright post of each wave power station is connected with the bracket; the bracket is supported by the center post; the center post penetrates through the soft capsule platform and is respectively connected with the hard tank to form a whole; the lower end of the soft capsule platform is mounted in the central position of the heave plate; the heave plate and the hared tank are connected to form a whole by the support frame; the low end of the hard ballast tank is drawn by the anchor chain to be connected to the piled anchor. According to the combined wave power station provided by the invention, synchronous lifting of the integral power station along sea tide is realized, so that the installed capacity and the power generation efficiency are greatly improved, the installing cost of the wave power station is reduced, and further the combined wave power station has high popularization and use values.

The invention discloses a low-concentration flue gas desulfurization method for hydroelectric silicon smelting. The method comprises the following steps: 1) preparing absorption slurry, namely fully uniformly mixing a desulfurization adsorbent ground to the granularity of 325-400 meshes and water so as to obtain the absorption slurry; 2) absorbing acid gas, namely enabling the absorption slurry and flue gas to be fully contacted in a desulfurizing tower when flue gas during hydroelectric silicon smelting enters a desulfurization system, so that acid gas and particles in the flue gas are absorbed by the absorption slurry; and 3) discharging the flue gas, namely detecting the emission concentration of SO2 at the outlet, discharging the SO2 while meeting requirements, if not, returning to thedesulfurization system to treat, filtering the absorption slurry after absorption, and returning the filtrate to the step (2) to serve as absorption liquid, and taking the filter residues as by-products for sales, thereby obtaining the product. According to the method disclosed by the invention, limestone and other desulfurization adsorbents are mixed with water to prepare the absorption slurry,the flue gas enters the desulfurization system to be fully contacted with the slurry, and the acid gas and particles are removed, so that the emission concentration of sulfur dioxide in the flue gas is reduced to 80mg / Nm3, and green and environmental-friendly production is effectively realized.

The invention discloses a system and a method for controlling oxygen blowing control for a calcium carbide furnace. The system comprises a detection device, an executing mechanism and a controller. The detection device is used for detecting the current state of the calcium carbide furnace; the executing mechanism is used for controlling oxygen spray used by the calcium carbide furnace; and the controller is separately connected to the detection device and the executing mechanism, and controls the executing mechanism to execute a corresponding action according to the current state after starting to execute the oxygen spraying operation of the calcium carbide furnace, so as to finish the oxygen spraying work. The system can realize automatic control of the system for controlling oxygen blowing control for the calcium carbide furnace, so that the production cost of calcium carbide is effectively lowered. The energy structure is improved, and the system has the characteristics of being stable, safe and efficient, the automation and reliability of the system are improved, and the system is simple and easy to implement.

The invention relates to the field of utilization of renewable energy sources, and in particular to a method and a device for removing siloxan in biomass gas through a two-stage mode. The device comprises a pretreatment system, a first-stage biomass gas purifying system and a second-stage biomass gas purifying system. The method comprises the following steps: sequentially pumping biomass gas containing solid-phase and liquid-phase impurities into a net type filter and a gas-liquid two-phase vertical separator, and removing water, foams and solid granules in the biomass gas; pumping obtained biomass gas into an absorption tank filled with a methyldiethanolamine solution, and removing hydrogen sulfide in the biomass gas; then pressurizing, pumping the biomass gas into an absorption tower, entering first-stage and second-stage biomass gas purifying technologies, and storing methane gas. According to the device and the method, disclosed by the invention, the siloxane in the biomass is removed by adopting the two-stage method, purified methane gas is obtained, and the removal rate of the siloxane can be up to not less than 99 percent; the device and the method have important significance in reducing atmospheric pollution and optimizing an energy structure.

Given that biomass new energy as renewable energy has wider prospects, the invention provides a technology capable of utilizing plant materials as biomass energy. According to the technology, biomassis carbonized and deeply crushed, and the crushed carbon powder is directly taken as fuel of an engine. The invention also provides a carbon engine capable of directly taking carbon as fuel, thereby providing new directions for design and development of engines in the future. A new development direction is provided for development of biomass new energy besides the development directions of biodiesel and bioethanol.

The invention discloses a variable cross section truss type tower crane overlength adhesion construction method. An adhesion frame of a tower crane and a building are included, the adhesion frame comprises a first corner and a second corner which are used for connection, an adhesion rod set comprises a first adhesion rod, a second adhesion rod and a third adhesion rod, the first adhesion rod enables the first corner and a first part of a building body to be in adhesion connection, the second adhesion rod enables the second corner and the first part of the building body to be in adhesion connection, the third adhesion rod enables the second corner to be in adhesion connection with the second part of the building body, and the first adhesion rod and the second adhesion rod are in hinged connection with an embedded wall plate through a double lug plate pin shaft. The material strength is sufficiently used, material is saved, self weight is reduced, rigidity is increased, the adhesion distance needs of the tower crane with the length of 15 to 30 meters can be met, the safety property is improved, and the service life of the tower crane can be prolonged.

The invention relates to an energy-saving efficiency-improving cargo truck transportation system based on smart power grids. In order to solve the problem that fuel oil is excessively consumed when empty driving of a cargo truck is carried out, a small engine with an electric auxiliary force device is assembled on the cargo truck with a large standard engine, and is matched with the empty load, and the small engine and the large standard engine drive the cargo truck in a selectively alternative mode, wherein when load driving is carried out, the large standard engine drives the cargo truck, and when the cargo truck without the load travels, the small engine drives the cargo truck. When the small engine drives the cargo truck without the load, the electric auxiliary force device is started manually or automatically to provide assistance for the small engine under the condition that driving force of the small engine is insufficient, and the electric auxiliary device is stopped manually or automatically and stops providing assistance for the small engine when the condition that the driving force of the small engine is insufficient is eliminated. The electric auxiliary force device is provided with a super-capacitor electricity storage power source device which stores off-peak electricity of the smart power grids and is charged through a super-capacitor electricity storage station. The energy-saving efficiency-improving cargo truck transportation system based on the smart power grids has the advantages that the advantage of surplus off-peak electricity of the smart power grids is made full use of, the new domestic demand for clean pollution-free electric power energy is expanded, the energy structure is optimized, fuel oil is remarkably saved, traveling performance is not influenced, and the transportation benefit is remarkably improved.

The invention provides expanded hydrocarbon fuel oil. The expanded hydrocarbon fuel oil comprises oil, water and a surfactant. The fuel oil is prepared according to the following steps: at normal temperature, adding a surfactant with the total mass ratio of 0.3% into oil according to the ratio of oil to water of 1:1, conducting stirring for 1 minute, conveying water into the oil and conducting stirring for 20 minutes to complete the ratio of 1:1, so as to obtain the finished product. Compared with the prior art, the invention has the following beneficial effects that according to the petrochemical fuel oil, the surfactant with the total mass ratio of three thousandths is added into 50% of oil and 50% of water under the condition of normal temperature, the mixture is stirred and mixed or passes through a three-stage shearing machine, so that the structure between monomer polymers is changed, multi-layer and multi-chamber oil-water mixed hydrocarbon is formed, and the composition of the structure has important influence on combustion heat power and reaction heat speed. The heat value is improved, and meanwhile, the pollutant emission in fuel oil application is greatly reduced. The expanded hydrocarbon optimizes the energy structure, and has milestone significance in the aspects of reducing the fuel cost and protecting the environment.

Systems and methods for solar-powered biomass fractional conversion and co-production of oil and gas. The system includes pyrolysis and gasification reaction unit, solar heating unit and oil gas purification and separation unit; solar heating unit includes trough solar molten salt heating unit and tower solar biomass ash heat carrier heating unit; pyrolysis and gasification The reaction unit includes a falling bed pyrolysis reaction section and a fluidized bed gasification reaction section; the falling bed pyrolysis reaction section is provided with a feed inlet, a carrier gas inlet, a spiral heat pipe, and a pyrolysis product outlet; the inlet end of the spiral heat pipe and The outlet ports are respectively located on the upper side wall and the lower side wall of the falling bed pyrolysis reaction section; the fluidized bed gasification reaction section is equipped with a circulating biomass ash heat carrier inlet, ash discharge port, gasification agent inlet and gas outlet; The purification separation unit includes a gas-liquid separator connected to the gas outlet. The system and method can utilize the high temperature achieved by solar heat collection as a heat source for biomass pyrolysis and gasification.

The invention discloses a rapid power tracking control method for a wind generating set. The rapid power tracking control method comprises an initialization state, a rapid power control starting state, a rapid power control state and a rapid power control quitting state. By adopting the method, extra equipment is not needed, the inertia kinetic energy characteristic of the wind generating set is utilized, the problems that the wind generating set excessively depends on the wind condition to conduct power control and the wind generating set is slow in power target tracking response can be solved, and the application and popularization of the wind generating set are facilitated.

The invention relates to an all-weather dual-DC solar water heating system which is technically characterized in that solar heating is adopted to match with a conventional energy heating device for keeping the basic constant temperature of supply water, The all-weather dual-DC solar water heating system works in the following processes: leading out a water level signal, a water pressure signal and a water temperature signal to a controller after cold water and hot water of a heat storage water tank are mixed; controlling a cold water intake pipeline by the controller; communicating three parallel members with the water tank, a conventional energy heater and water points for switching work; leading out a hot water pipe from the water tank, driving the three communicated and parallel-connected members through a pump; and communicating to switch on or off the conventional energy heater, a solar heat collector and the water points. The working processes can be simultaneously operated or incompletely or cooperatively operated, a normally-open electromagnetic valve is connected with a solar water feeding pipe, a hot water return pipe and a water feeding morally-closed electromagnetic valve for synchronous switching. Every time the solar heat collecting process is over, water of the heat collector and water of the external pipeline are refluxed to the water tank in time. The invention radically solves the problems of freezing prevention and resistance, and the like.