443 results about "Hybrid power generation" patented technology

A hybrid power plant (5) for an aircraft (1) comprises at least: a hybrid drive system (37) having a main on-board electricity network (16) and an auxiliary electricity network (34); and a selective adaptation interface (38) arranged to enable electrical energy to be exchanged selectively between the main and auxiliary electricity networks (16; 34). At least one engine and a hybrid drive auxiliary electrical machine (7, 31) are mechanically connected to a transmission (8); said machine (7) being electrically connected to at least one auxiliary electrical bus (36) in parallel with at least one auxiliary device for delivering electric charge.

A hybrid power generation system for generating electrical power comprises a compressor for producing a compressed oxidant and a recuperator in flow communication with the compressor. The hybrid power generation system further comprises a fuel cell assembly comprising a plurality of fuel cells in flow communication with the recuperator to provide the compressed oxidant for the fuel cell assembly. The fuel cell assembly further comprises a cathode inlet for receiving the compressed oxidant, an anode inlet for receiving a fuel stream, an anode outlet in flow communication with an anode exhaust stream and a cathode outlet in flow communication with a cathode exhaust stream, wherein at least a portion of the fuel reacts with the oxidant to produce electrical power. The hybrid power generation system further comprises a tail gas burner in flow communication with the anode outlet and the cathode outlet. The tail gas burner is configured for combusting a mixture of at least a portion of the anode exhaust stream and at least a portion of the cathode exhaust stream and producing a hot compressed gas. A control system is used for controlling the amount of the cathode exhaust stream introduced in the tail gas burner for stable combustion and reduction of fuel and carbon monoxide emission. The hot compressed gas from the tail gas burner is introduced to a turbine, where the hot compressed gas is expanded, thereby producing electrical power and an expanded gas.

A fuel cell hybrid power generation system for use in a gas distribution system in which a higher pressure gas is transported / distributed and reduced to a lower pressure gas for a gas distribution or transmission line and a pre-heater is used to heat the higher pressure gas before it is reduced in pressure. The power generation system includes: (i) a fuel cell power plant that generates electricity while producing heat that is used to preheat high pressure gas; (ii) an energy recovery generator that uses the pre-heated higher pressure gas to generate electricity while reducing the gas pressure to a lower gas pressure; and (iii) an electrical assembly combining the electrical outputs of the energy recovery generator and the fuel cell power plant. The fuel cell power plant makes the waste heat available to the gas pre-heater without using a combustion unit thereby increasing the system's electrical efficiency.

A system for co-generation of electricity combining a hydrocarbon catalytic reformer, an SOFC assembly and a generator driven by a gas turbine. The fuel cell assembly recycles a high percentage of anode exhaust gas into the reformer. Oxygen for reforming is derived from water in an endothermic process. The stack exit temperature is normally above 800° C. DC power from the fuel cell assembly and AC power from the gas turbine generator are directed to a power conditioner. Anode exhaust gas including carbon monoxide and hydrogen is divided into a plurality of portions by which heat may be added to the reforming, gas turbine, and cathode air heating processes. Water may be recovered from the exhaust. A power system in accordance with the invention is capable of operating at a higher total efficiency than either the fuel cell component or the gas turbine component alone.

The present invention relates to a hybrid power-generating device and a power generating method thereof. The hybrid power-generating device is primarily comprised of: a primary electrical generator and an auxiliary electrical generator with different characteristics, both mechanically coupled to a prime while enabling the rated power of the auxiliary electrical generator to be smaller than that of the primary electrical generator; wherein, as the prime is operating at a low rotation speed or at its initial operating stage, the auxiliary electrical generator is enabled to be driven and activated thereby; and as the operating speed of the driver is stabilized and reaches a predetermined value, the primary electrical generator is then being driven and activated thereby. By the aforesaid hybrid power-generating device, not only the overall performance and the stability of power grid are enhanced, but also the operating cost is reduced.

The invention provides a novel floating type multi-floater wind-wave energy hybrid power generation device which comprises a wind driven generator, a floating foundation platform, a wave energy capture device and connecting structures between floating bodies, wherein the wind driven generator comprises blades, a hub, a cabin and a tower; the floating type foundation platform is a semi-submersible type and is located on the sea surface by an overhung anchor chain line; the wave energy capture device comprises floaters and an energy capture (PTO) system, and the axial relative movement between the wave energy floaters and stand columns of the foundation platform under the action of wave energy is utilized to drive the PTO system to generate electric energy; and each connecting mechanism comprises a guide rail and a U-shaped wheel, and can enable the platform and the wave energy floaters to produce axial relative movement only. The novel floating type multi-floater wind-wave energy hybrid power generation device can realize the purpose of joint power generation of offshore wind energy and wave energy by utilizing mechanical energy possessed by offshore air and wave, and is good in stability, wide in applicable water depth scope, high in power generation efficiency, simple in structure form and reliable in power generation mode.

The invention discloses a joint pumped storage power station and wind power and solar power complementary system and an optimization method therefor, and belongs to the technical field a joint wind power and solar power energy storage power generation system. By transforming an available space of a waste mine, a hybrid power generation system, combined by an underground water-pumping energy-storage power station and a surficial wind power and solar power complementary power generation system, is established; by taking the operation indexes, such as the wind power and solar power complementary system, the water-pumping energy-storage power station, power grid transmission power and the like as constraint conditions, a configuration model with the minimum wind power and solar power complementary output fluctuation, the minimum joint system output fluctuation and an optimized tracking load curve is obtained; and finally, solving and optimization on the model is performed based on an improved simulated annealing algorithm. By taking full advantages of the energy storage and power generation capability of the underground water-pumping energy-storage power station and by combination with the complementary characteristics of the wind power and solar power resources, the joint system is higher in flexibility in output regulation, the total output tracking load curve is better in effect, and the system is higher in new energy consumption and utilization.

An internal combustion engine and its method of operation including at least one embodiment operating on a six-stroke cycle and including at least one piston and cylinder assembly. The six-stroke cycle includes two power strokes, the latter of which is the result of a water to steam conversion process utilizing the heat of the exhaust gas from the first power stroke. A second embodiment comprises a hybrid power generating assembly incorporating alternative, first and second power sources respectively comprising an internal combustion engine and a water injection engine, the latter of which operates on the water to steam conversion process, wherein the required heat therefore is derived from the exhaust gas of the internal combustion engine. Another preferred embodiment comprises the utilization of different normally wasted heat sources from an IC engine for the generation of sufficient work energy to drive a power take-off, such as hybrid drive assembly.

A hybrid generator may include a fuel powered engine; an alternator comprising a permanent magnet alternator head with at least 90% mechanical-to-electric efficiency, the alternator being coupled to the engine; one or more batteries to receive and store power routed from the alternator; a controller to maintain efficient operating speed of the engine at prime power; and a power converter or inverter to convert stored energy from the batteries into usable electricity for AC or DC loads.

An internal combustion engine and its method of operation including at least one embodiment operating on a six-stroke cycle and including at least one piston and cylinder assembly. The six-stroke cycle includes two power strokes, the latter of which is the result of a water to steam conversion process utilizing the heat of the exhaust gas from the first power stroke. A second embodiment comprises a hybrid power generating assembly incorporating alternative, first and second power sources respectively comprising an internal combustion engine and a water injection engine, the latter of which operates on the water to steam conversion process, wherein the required heat therefore is derived from the exhaust gas of the internal combustion engine. The second power source drives a source of electric energy which powers an electric motor, wherein the electric motor and the internal combustion engine are both connected in driving relation to a power take-off.

The invention relates to a wind power output adaptive smoothing method based on energy storage battery charge state feedback, which comprises the following steps of: A, reading data; B, filtering wind power output based on a smoothing controller module, and calculating a smoothing target value of the wind power output; C, adjusting a time constant of the smoothing controller module in the step B and a power command value of an energy storage battery in real time based on an adaptive controller module; and D, outputting data of the smoothing target value of the wind power output which is calculated in the step B and the power command value of the energy storage battery which is calculated in the step C. Due to an industrial personal computer and a communication platform, the functions of smoothing the wind power output, monitoring system on chip (SOC) of the energy storage battery on line, adaptively correcting the time constant of a filter, adaptively correcting the power value of the energy storage battery and the power value of a wind power smoothing target, and the like are realized; therefore, the wind power smoothing effect and energy storage battery management are conveniently and effectively controlled in a wind storage hybrid power generation system.

The present invention relates to a hybrid power-generating device and a power generating method thereof. The hybrid power-generating device is primarily comprised of: a primary electrical generator and an auxiliary electrical generator with different characteristics, both mechanically coupled to a prime while enabling the rated power of the auxiliary electrical generator to be smaller than that of the primary electrical generator; wherein, as the prime is operating at a low rotation speed or at its initial operating stage, the auxiliary electrical generator is enabled to be driven and activated thereby; and as the operating speed of the driver is stabilized and reaches a predetermined value, the primary electrical generator is then being driven and activated thereby. By the aforesaid hybrid power-generating device, not only the overall performance and the stability of power grid are enhanced, but also the operating cost is reduced.

An unmanned aerial vehicle comprising at least one rotor motor. The rotor motor is powered by a micro hybrid generation system. The micro hybrid generator system comprises a rechargeable battery configured to provide power to the at least one rotor motor, a small engine configured to generate mechanical power, a generator motor coupled to the small engine and configured to generate AC power using the mechanical power generated by the small engine, a bridge rectifier configured to convert the AC power generated by the generator motor to DC power and provide the DC power to either or both the rechargeable battery and the at least one rotor motor, and an electronic control unit configured to control a throttle of the small engine based, at least in part, on a power demand of at least one load, the at least one load including the at least one rotor motor.

A test method for wind-photovoltaic-storage hybrid grid-connected power generation includes the following steps: acquired resource data or power data are provided for a simulated power generation source controller in order to control the output power of the simulated power generation source; the statistic of a load is provided for a simulated load controller in order to control the power of the simulated load; the initial parameters of a wind-photovoltaic-storage hybrid power generation system to be tested are provided for a monitor; the data of each part of the system is acquired, and a comparison diagram is utilized to analyze the reliability of the system; an acquired actual curve is compared with a theoretical curve so as to evaluate whether the system performance meets requirement, and the controllability of the simulated power generation source controller and the simulated load controller is utilized to carry out a reliability test on the system under extreme and faulty conditions. According to the inveniton, the economy and reliability indexes of the wind-photovoltaic-storage hybrid power generation system can be conveniently researched and analyzed.

A hybrid system using a wind-power generator and a battery energy storage system includes a unit to set a system constant output value, a unit to control power generated from the wind-power generator, a unit to gradually change an output target value between an output constant operation and a regulation control operation, and a control unit to secure a charged ampere-hour of a battery in the output constant operation.

A hybrid power generation system using a supercritical CO2 cycle includes a steam power generation unit including a plurality of turbines driven with steam heated using heat generated by a boiler to produce electric power, and a supercritical CO2 power generation unit including an S—CO2 heater for heating a supercritical CO2 fluid, a turbine driven by the supercritical CO2 fluid, a precooler for lowering a temperature of the supercritical CO2 fluid passing through the turbine, and a main compressor for pressurizing the supercritical CO2 fluid, so as to produce electric power. The steam power generation unit and the supercritical CO2 power generation unit share the boiler. The hybrid power generation system may improve both the power generation efficiencies of the steam cycle and the supercritical CO2 cycle by interconnecting the steam cycle and the supercritical CO2 cycle.

The invention discloses a method for determining the credibility of photovoltaic power capacities. The method comprises the following steps of: (1) creating a time-interval model of a hybrid power generation system containing a photovoltaic power station; (2) calculating a daytime reliability index Rd and a night reliability index of an original power generation system not containing a photovoltaic power station, and superimposing the indexes to obtain a synthetic reliability index Rx of the original power generation system; (3) connecting a photovoltaic power station to the original power generation system, and adjusting the load level of the hybrid power generation system with Ry and Rd as targets, thus obtaining a new load level of the hybrid power generation system; and (4) replacing the photovoltaic power station with a virtual conventional unit, performing iterative computation respectively at the new load level to obtain a daytime generating capacity Cy and a whole day generating capacity credibility Cd of the photovoltaic power station. By virtue of the method, the improvement on the daytime reliability of the system after the photovoltaic power station is added can be clearly investigated, and the credibility of the daytime and full-day photovoltaic power capacities can be calculated.

The invention discloses a combined cooling, heating and power supply system. The combined cooling, heating and power supply system is characterized by being formed through treating a SOFC / GT hybrid power generation system as a reference system and introducing CO2 circulation, ORC circulation and a LNG cold energy utilization system. According to the combined cooling, heating and power supply system, a SOFC / GT serves as a prime mover, high-temperature waste heat, medium-temperature waste heat and low-temperature waste heat of a recovery system of the CO2 circulation and the ORC circulation areutilized correspondingly, and an LNG is used as a cold source for the CO2 circulation and the ORC circulation, and therefore, external cooling (air conditioning and refrigeration), external heating, external power supply, external natural gas supply and external supply of ice and dry ice can be achieved; and the low-carbon emission of the system is realized by condensing and separating CO2 in a flue gas, the available energy loss of the combined supply system can be effectively reduced, gradient and efficient utilization of energy is achieved, and the good energy-saving and emission-reducing effects are achieved.

A hybrid system using a wind-power generator and a battery energy storage system includes a unit to set a system constant output value, a unit to control power generated from the wind-power generator, a unit to gradually change an output target value between an output constant operation and a regulation control operation, and a control unit to secure a charged ampere-hour of a battery in the output constant operation.

A wind-photovoltaic-energy-storage power generation system capacity optimizing method based on a wind-photovoltaic hybrid characteristic belongs to the technical field of a wind-photovoltaic-energy-storage power generation system. According to the wind-photovoltaic-energy-storage power generation system capacity optimizing method, through controlling the hybrid power generation system, island-mode operation and grid-connected-mode operation of the hybrid power generation system can be realized. According to the wind-photovoltaic-energy-storage power generation system capacity optimizing method, a capacity optimizing model which is suitable for the wind-photovoltaic-energy-storage power generation system is presented, wherein system cost minimizing is used as an optimizing target, and furthermore the wind-photovoltaic hybrid characteristic, a grid-connected power fluctuation condition and a system load loss rate are comprehensively considered. The wind-photovoltaic-energy-storage power generation system capacity optimizing method has advantages of sufficiently utilizing the wind-photovoltaic hybrid characteristic, ensuring high reliability in power supplying of the system just through a relatively low storage battery capacity, and reducing system cost.

A hybrid power generation system includes a gas turbine engine system and a supercritical rankine cycle system. The gas turbine engine system includes a first compressor, an intercooler, and a second compressor. A first compressor is configured to compress an inlet airflow to produce a first outlet airflow at a first pressure. An intercooler is coupled to the first compressor and configured to cool the first outlet airflow exiting the first compressor to produce a second outlet airflow. A second compressor is coupled to the intercooler and configured to compress the second outlet airflow exiting the intercooler to produce a third outlet airflow at a second pressure. The supercritical rankine cycle system is coupled to the gas turbine engine system. The supercritical rankine cycle system is coupled to the intercooler to circulate a working fluid in heat exchange relationship with the first outlet airflow to heat the working fluid at a supercritical pressure from a first temperature to a second temperature above a critical temperature of the working fluid and to cool the first outlet airflow exiting the first compressor.

A solar light-heat hybrid power generation system having an improved efficiency is provided. A solar light-heat hybrid power generation system (100) that performs power generation by use of sunlight (52) and solar heat (52) includes a light collecting mirror (10) having an infrared reflective film (20) formed on a surface (10a) thereof; a heat collecting section (60) that collects infrared rays (55) reflected by the infrared reflective film (20) on the surface (10a) of the light collecting mirror (10); a power generator (84) including a turbine (82) rotatable by steam generated by heat collected to the heat collecting section (60); and a solar cell panel (30) including a solar cell (32) located inside the light collecting mirror (10).

The invention discloses a method for cycle power generation by treating garbage, which is rapid, residue-free, clean and innoxious and in particular can effectively prevent dioxins from synthesis. In the method, after being subjected to wet decomposition, dechlorination, debenzolization, dehydration, deodorization, sterilization and organic matter expansion, the domestic garbage is pyrolyzed by afurnace for pyrolysis, dry distillation and gasification, and the hydrogen-containing biomass gas generated after pyrolysis, cooling and purification is used for power generation by adopting gas turbine-steam turbine hybrid power generation technology. The invention has the following advantages: the domestic garbage is fully treated, no secondary pollution is produced in the treatment process, source control is carried out on synthesis of such toxic substances as dioxins and the like, and the power is the clean energy in the true sense; therefore, the method can completely replace the incinerator-steam turbine power generation technology which is largely adopted at present.

The invention aims to provide a floating type marine wind energy and wave energy hybrid power generation platform which comprises a vertical shaft wind driven generator, an oscillating type wave power generating device and a floating body, wherein the vertical shaft wind driven generator and the oscillating type wave power generating device are respectively arranged on the floating body; the oscillating type wave power generating device comprises a floater, an oscillating rod and a wave power generator; the floater is connected with the oscillating rod, and the oscillating rod is connected with the wave power generator through a wave motion reversing device; and the wave power generator is connected with an energy storage device through a power conversion device. According to the floating type marine wind energy and wave energy hybrid power generation platform, the application range of the hybrid power generation platform is expanded, the stability and the safety performance of the power generation platform are improved, the construction cost and the maintenance cost are reduced, and the power generation efficiency is improved by active stall control and phase change control, so that the floating type marine wind energy and wave energy hybrid power generation platform is a reliable offshore power generation platform.

The invention relates to a control system of a mileage increaser of an electric vehicle, which comprises the mileage increaser, wherein the mileage increaser is parallel-connected between a high-voltage battery and an inverter by the way of a common bus, the high-voltage battery is connected with a whole vehicle controller, an input end of the whole vehicle controller is used for detecting an EV / PHEV switch required by the pure electric power generation mode or the hybrid power generation mode of driving, the inverter is connected with a drive motor, and the whole vehicle controller starts the mileage increaser for supplying power to the high-voltage battery. The invention further discloses a control method of the control system of the mileage increaser of the electric vehicle. The whole vehicle controller calculates the basic power generation requirement according to the electric quantity state of the high-voltage battery, and controls a power generator to output the corresponding power generation power according to the different modes. The control system can realize the power generation function of the mileage increaser to the whole vehicle, prolong the range of the vehicle and further effectively control the emission, the oil consumption and the NVH performance.

A portable generator system provides power to a load source including an engine and a generator. The engine drives the generator to provide a generator alternating current (AC) electrical power output. An energy storage system (ESS) provides an ESS direct current (DC) electrical power output. A first inverter is connected to the generator for receiving the generator AC electrical power output and for providing a DC power output. A second inverter is connected to the first inverter and the ESS for receiving the DC power output from the first inverter and the ESS DC electrical power output for providing an AC power output. A first power mode includes the generator maintaining a first generator power output level corresponding to a specified power requirement of a load source, and the ESS providing an additional first ESS power output level for satisfying the specified power requirement of the load source.

The invention discloses an apparatus capacity allocation method of a hybrid energy power generation system. The hybrid energy power generation system comprises a plurality of energy systems. The method is characterized in that: an apparatus capacity proportion of each energy system can be allocated according to actual demands of different setting sites and environment factors, wherein the apparatus capacity proportion is best suitable for the setting sites; an apparatus capacity combination of a minimum cost recovery year can be calculated so as to further reduce setting costs and improve efficiency.

The invention relates to a marine multi-energy integrated power-generation power-supply monitoring platform. A wind-solar hybrid power generation system is arranged on a support platform; a draught fan rotating shaft drives a rotor to rotate when rotating, current is generated under the action of the rotor and a stator, and through rectification of a wind power rectifier, the current and current generated by solar panels are together collected into a wind-solar hybrid controller; a wave power generation system is an oscillating float-type power generation system, a float is connected with an upper piston device through a transmission shaft, the piston device is connected with an upper electric generator, and the electric generator is connected with an electric energy processing system through an electric transmission device; a tidal power generation device is arranged below a floating body; a sensor distribution system is an assembly of all sensors arranged on the platform; an underwater sensor group is arranged on a chain arranged longitudinally, and different sensors are detachably arranged according to the different depths of sea water; the electric energy processing system is arranged in an interior cavity of the floating body, and conducts processing, storage and output on electric energy converted from wind energy, solar energy, wave energy and tidal energy.

The invention provides a hybrid power generation system and a using method thereof. The hybrid power generation system comprises a semiconductor thermoelectric power generation module, a radiation module and a sensitized solar cell, wherein the heat end of the semiconductor thermoelectric power generation module is adhered to a backlight surface substrate of the sensitized solar cell, and the cold end of the semiconductor thermoelectric power generation module is adhered to the radiation module. The sensitized solar cell is combined with the semiconductor thermoelectric power generation module, and the hybrid power generation system provided by the invention can fully utilize the full spectrum of sunlight for power generation by utilizing the characteristic that positive correlation between the efficiency and temperature of the sensitized solar cell is consistent with the requirement of the thermoelectric power generation module on a great temperature difference, thereby increasing the utilization rate of solar energy.

A system for co-generation of electricity combining a hydrocarbon catalytic reformer, an SOFC assembly and a generator driven by a gas turbine. The fuel cell assembly recycles a high percentage of anode exhaust gas into the reformer. Oxygen for reforming is derived from water in an endothermic process. The stack exit temperature is normally above 800° C. DC power from the fuel cell assembly and AC power from the gas turbine generator are directed to a power conditioner. Anode exhaust gas including carbon monoxide and hydrogen is divided into a plurality of portions by which heat may be added to the reforming, gas turbine, and cathode air heating processes. Water may be recovered from the exhaust. A power system in accordance with the invention is capable of operating at a higher total efficiency than either the fuel cell component or the gas turbine component alone.