19 results about "Power generation system" patented technology

The invention relates to a mechanical combination type oscillating floater wave energy power generation device. The mechanical combination type oscillating floater wave energy power generation device comprises a power generation system and a fixing system, wherein the fixing system comprises a buoyancy tank and a fixing frame. The fixing frame is in a cubic structure and is fixedly connected with the top portion of the buoyancy tank, and stand columns are respectively arranged on four corners of a side surface of the fixing frame. The power generation system is composed of four groups of same power generation mechanisms which are respectively arranged on the stand columns of the fixing frame, each power generation mechanism comprises a floater, an energy conversion device and an energy output device, and each energy output device comprises two generators which are fixed on the top portion of the floater. Two one-way gears are respectively sleeved at the top ends of input shafts of the generators on the same side and are connected with the input shafts of the generators through keys. Two racks are respectively meshed with the one-way gears on the same side. The mechanical combination type oscillating floater wave energy power generation device contacts with a wave directly and is high in energy conversion efficiency, low in device construction cost, stable in output electric energy and wide in application.

The invention discloses a grid-connected type multi-loop low temperature waste heat power generation system. Heat is collected and converted into mechanical energy to drive a permanent magnet synchronous generator to rotate so as to generate AC electric energy via an organic Rinkine cycle mode, and then AC electric energy merges into a large power grid or an internal small power grid via a grid-connected current transformer or supplies power to an independent load. Operation of the current transformer is controlled via a DSP floating point control chip TMS320F28335. The whole system is monitored and managed in real time via an upper computer system, fault problems in the system are processed, and output power of a turbine is adjusted to be constant. When a fault occurs in the power grid, corresponding processing can still be performed. The grid-connected low temperature waste heat power generation system is suitable for heat sources with temperature of being greater than 60 DEG C, such as factory waste heat, underground heat, solar energy, etc. so that the system has characteristics and advantages that dynamic adjustment speed is high, energy transmission efficiency is high, energy can bi-directionally flow, grid-connected harmonic current is low, power factor is high, generator loss is low, efficiency is high and utilization efficiency of waste heat is high.

The invention provides a biomass gasification Stirling power generation system, and belongs to the technical field of Stirling power generation. The biomass gasification Stirling power generation system is characterized in that a biomass gasification system, a Stirling power generation system and waste heat are combined, fuel gas generated by the biomass gasification system is conveyed to the Stirling power generation system through a pressurizing device, the fuel gas and combustion-supporting air are mixed according to a ratio of 1:3 in a combustor, the fuel gas is ignited through the spark plug of the combustor, a Stirling power generator is heated to generate power, high-temperature residual smoke generated by power generation can heat the combustion-supporting air through a heat exchange device and finally enters a waste heat utilization system for heat supply and refrigeration, and generated smoke tail gas is subjected to desulfurization, denitrification and dust removal treatmentthrough a tail gas treatment device and then is discharged after reaching the standard.

The invention provides a power generation system and a carrier device, and relates to the field of power generators. The power generation system is installed on a device body of the carrier device and comprises a support system, a gearbox, a power generator and a belt transmission device, the support system and the gearbox are both arranged on the device body, the power generator is arranged between the support system and the gearbox, and the gearbox is connected with the power generator through the belt transmission device. By means of the power generation system, mechanical energy can be converted into electric energy in a narrow space, and the effects of power taking and power generation are achieved.

The invention relates to a gas combined heat and power generation system and a control method thereof. The gas combined heat and power generation system comprises a first compressor, a high-temperature boiler, a second compressor, a material storage chamber, a gas engine, a gas turbine device, a generator, a high-temperature waste heat recycling device, a low-temperature waste heat recycling device, a waste heat boiler and an air preheater. By means of the gas combined heat and power generation system and the control method thereof, the gas combined heat and power generation function is comprehensively achieved, by means of the high-temperature boiler, the gas engine, the gas turbine device, the generator, the high-temperature waste heat recycling device, the low-temperature waste heat recycling device, the waste heat boiler and the air preheater, comprehensive recycling of power energy and heat energy is achieved, and the energy conversion efficiency of the system can be further improved.

The invention discloses a mobile energy storage power station system. According to the system, batteries are assembled into a battery pack by means of series-parallel connection; the working status ofeach battery is monitored through an BMS (battery management system); the charging and discharging process of the battery pack is completed through a PCS (process control system); a fire-fighting system, a monitoring system, a security system and other systems are arranged in the mobile energy storage power station system, so that a separate cabinet-type energy storage power station can be formed; an external power grid or new energy generation system is adopted to charge the energy storage station; and during discharging, stored electric energy is sent to a power grid or directly transportedto a use place with a wheeled trolley, so as to be transmitted to a user. With the mobile energy storage power station system of the invention adopted, the flexibility of electric energy supply can be improved, which mainly is reflected in the following facts that: the volatility of new energy power generation can be eliminated; a capacity to absorb new energy to realize grid connection is improved; load peak-to-valley differences can be reduced; the utilization rate of a power generation system can be improved; power supply reliability and power quality can be improved; the development of microgrids can be promoted; and maneuvering, efficient and large-capacity emergency backup power sources can be provided.

The invention relates to a low-input current ripple high-gain soft switching direct current converter, which comprises an input port, a load port, a first switch tube, a second switch tube, a first diode, a second diode, a third diode, an input inductor, a coupling inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a load. According to the invention, through complementary control of the two switch tubes, zero-voltage conduction of the two switch tubes and zero-current turn-off of the three diodes can be realized; and the low-input current ripple high-gain soft switching direct current converter has the advantages of high voltage gain, small input current ripple, high conversion efficiency, small switching tube voltage stress and the like, and is very suitable for a non-isolated renewable energy power generation system.

The invention discloses an energy saving control system based on superconduction cooling waste heat power generation of a trilinear driving type blast furnace. The energy saving control system is composed of a blast furnace body (1), a power generation system (12), a steam utilizing device, one or more annular superconductive heat exchange rings (2) which are arranged along the side wall of the blast furnace body (1) in a layered and surrounding mode, a waste heat controlling and disposing system and the like. The waste heat controlling and disposing system comprises a diode rectifier U, a voltage stabilizing and transforming circuit and a three-terminal voltage stabilizing control circuit. The waste heat controlling and disposing system is characterized in that a trilinear driving circuit is further connected between the voltage stabilizing and transforming circuit and the three-terminal voltage stabilizing control circuit in series. According to the energy saving control system, by means of the annular superconductive heat exchange rings internally embedded in the side wall of the blast furnace body and an annular pipeline system corresponding to the annular superconductive heat exchange rings, hot water subjected to heat exchange is guided out intensively, and the heat exchange efficiency and cooling efficiency are improved; in addition, the temperature of traditional cooling water is increased from 40 DEG C to 250 DEG C, then the cooling water is overheated to 400 DEG C by utilizing the conductive heat exchange rings twice, and therefore the cooling waste heat can be utilized for power generation.

The invention discloses a variable-speed constant-frequency power generation system of a hydroelectric generating set and a control method. A power generation unit comprises a water turbine and a power generator driven by the water turbine. The output end of the generator is connected with the grid through the unit switch; the auxiliary conversion device comprises a rectifier and an inverter, the output end of the rectifier is electrically connected with the input end of the inverter, and the output end of the inverter is electrically connected with a power grid; the unit control module comprises a flow sensor, a flow controller and a guide vane controller; the flow controller is installed at the water supply position of the water inlet channel to the water turbine. The guide vane controller is used for controlling the guide vane opening degree of the water turbine. The master control device comprises a central controller and a data memory which exchanges data with the central controller; the central controller is used for electrically connecting and controlling the auxiliary conversion device, the unit control module, the unit switch and the auxiliary switch; the problem that current output by a hydraulic turbine set generator is difficult to synchronize with current frequency and phase in a power grid is solved.

The invention relates to the field of steam engine devices, in particular to a combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and a control method thereof. The control method comprises the steps that: waste heat steam is introduced into a steam turbine to drive a double-extension-shaft generator to generate electricity; the steam discharged by the steam turbine enters an evaporator to heat a working medium; the working medium expands to drive the double-extension-shaft generator to generate electricity; the working medium circularly flows back to the evaporator after being cooled; the rotating speed of the double-extension-shaft generator is increased to a rated rotating speed; a grid-connected cabinet of the double-extension-shaft generator is closed; and the output power of the double-extension-shaft generator is increased to the rated power for operation. Therefore, energy in the waste heat can be used in a grading manner, and the working efficiency is improved.

The invention lies in the field of current stabilisation in a power generation system comprising a plurality of elementary power groups connected in parallel. It relates to a control system for regulating the elementary power groups. According to the invention, the control system comprises a global current control system (510) and a plurality of local current control systems each associated with an elementary power source of the power generation system. The global current control system (510) comprises: ▪a divider (511) arranged to deliver a fixed current set point I_{n_fix}, ▪correction unit (512) arranged to deliver a variable current set point I_{n_var} and to take either a steady state or a transitory state, the variable current set point I_{n_var} being determined as a function of a correction signal S_corr in the transitory state, ▪an adder (513) arranged to deliver a global current set point I_{n_glob} as the sum of the fixed current set point I_{n_fix} and the variable current set point I_{n_var}, and ▪a scenario management unit (514) arranged to detect when the state of at least one elementary power source (220₁-220_N) switches from an OFF-state to an ON-state, or vice versa, to determine the correction signal S_corr and to trigger the transitory state of the correction unit for a predetermined transitory period τ_trans when a change of state is detected.

The tidal power generation system is characterized in that the system comprises a reservoir arranged on the seaside, a water passing opening is formed in the side, facing the ocean, of the reservoir, a bearing platform (1) is arranged on the foundation ground at the water passing opening of the reservoir, the bearing platform (1) is higher than the bottom of the reservoir, and meanwhile a lifting power generation mechanism is further arranged on the bearing platform (1). The tidal power generation system is simple in structure, ingenious in design and reasonable in layout, and the power generation mechanism can change along with the change of the water level, so that the purposes of prolonging the effective power generation time, improving the working efficiency and the like are achieved.

According to the electric auxiliary braking system and method for the hybrid electric vehicle, a driving motor assembly, a power generation system, a power battery assembly and an electric energy consumption box are all electrically connected with a high-voltage distribution box, and an electric energy consumption box switch is arranged between the high-voltage distribution box and the electric energy consumption box in series; the power battery assembly, the power generation system, the high-voltage distribution box, the electric energy consumption box switch, the conventional auxiliary brake switch, the ABS/ESC controller and the driving motor assembly are all in communication connection with the whole vehicle controller, and the conventional auxiliary brake switch is electrically connected with the conventional auxiliary brake system. According to the system and the method, it can be guaranteed that even if the power battery is fully charged, electric auxiliary braking can still play a role, the carried vehicle has the good long slope descending auxiliary braking effect, when the vehicle is driven to run through hybrid power, surge of the power battery is avoided during emergency braking, and normal work of the power battery is guaranteed.

The invention discloses a photovoltaic power generation system practical training assessment device, which comprises a photovoltaic power generation circuit (I), a supplementary circuit (II) and a fault debugging panel (III). The device is characterized in that the photovoltaic power generation circuit (1) comprises a solar cell panel (01), a DC/DC converter (02), a DC/AC inverter (03), an inductance filter (04), an AC load (05), a current and voltage detector (06), a synchronous signal detector (07), a TMS320F240 control circuit (08), a drive circuit (09) and an SG3525 control circuit (10), the supplementary circuit (II) comprises a relay, wires are connected between the photovoltaic power generation circuit (1) and the supplementary circuit (2) and between the photovoltaic power generation circuit (1) and the fault debugging panel (3) according to electrical lines, fault points K1 to K5 are arranged in the photovoltaic power generation circuit (1), and the fault points are connectedwith a fault operation switch on the fault debugging panel through the relay of the supplementary circuit. The comprehensive skills of fault searching, fault analysis, fault solving and the like of students in the aspect of a photovoltaic power generation system can be improved.