1052results about How to "Improve energy efficiency" patented technology

The invention discloses a sludge low-temperature oxidation treatment system and method. The system comprises a pretreatment unit, a feed lifting mechanism, a low-temperature oxidation furnace, a flue gas purification unit and an automatic control unit. The low-temperature oxidation furnace is divided into a feeding area, a low-temperature oxidation area and an air distribution and slag discharge area from top to bottom, an air distribution plate is provided with air outlets which are uniformly arrayed, the temperature of the low-temperature oxidation area is controlled to be 420-480 DEG C, and generation of dioxin is inhibited from the source. The pretreatment unit is used for mixing sludge, biomass and quartz sand to form a loose breathable material to prevent the sludge from hardening; the method comprises the steps of material mixing, continuous feeding oxidation, temperature closed-loop regulation and control, flue gas purification and ash treatment, high-water-content municipal sludge can be stably treated, the energy consumption is low, the dioxin generation amount is low, flue gas emission reaches the standard, ash can be recycled, and the method is suitable for large-scale municipal sludge harmless treatment.

The invention relates to a multi-shaft compressor unit and a control method thereof, in particular to a steam-electricity double-drive multi-shaft compressor unit connected with double clutches and a control method of the steam-electricity double-drive multi-shaft compressor unit. The technical problems that in the prior art, a pure electricity mode, a pure steam mode and a steam-electricity double-drive mode cannot be switched on line, and when steam is sufficient, a motor cannot be disengaged, so that energy is wasted are solved. The system comprises a multi-shaft compressor, a steam turbine, a motor, a first clutch, a second clutch, a steam flow sensor, a controller and a rotating speed sensor. The multi-shaft compressor comprises a driving shaft; the driving shaft is provided with two driving ends which are respectively a first driving end and a second driving end; the output shaft of the steam turbine is coaxially connected with the first driving end through a first clutch; an output shaft of the motor is coaxially connected with the second driving end through the second clutch; and rotating speed sensors are arranged on the first driving end, the second driving end, the steam turbine and the output shaft of the motor.

The embodiment of the invention discloses a data interaction method of a string type energy storage system, the energy storage system and a related device, the method is applied to a PCS controller in the string type energy storage system, and the string type energy storage system comprises a plurality of battery clusters, a cluster controller, a stack controller and the PCS controller; comprising the following steps: acquiring the total system power and the online cluster number of a plurality of battery clusters sent by a stack controller; acquiring operation state parameters of the battery clusters forwarded by the stack controller and correspondingly acquired by the cluster controller; determining the execution power of the plurality of battery clusters in response to the total power of the system, the online cluster number and the operation state parameters; and generating a control instruction when it is determined that a battery cluster fault exists according to the operation state parameters. Therefore, independent and accurate management of each cluster of batteries is realized, the overall energy efficiency of the system is improved, and meanwhile, the safety and reliability of the system are ensured through a dynamic power distribution strategy and a layered fault response mechanism.

The application provides a double-motor driving and rigidity actively adjustable series elastic actuator and a control method thereof, which utilizes elastic elements to convert kinetic energy and potential energy, reduces system energy consumption, improves system energy utilization efficiency, improves dynamic performance of the actuator by introducing the elastic elements, strengthens the anti-impact capability of the system, and improves the safety of human-machine interaction; rigidity is controlled by changing the effective lever arm length between the end of the actuator and the elastic element, the deformation of the elastic element under the load of the actuator is measured, the transmission ratio of the system is calculated, the output torque is obtained, and the output force control of the actuator is further realized. The application utilizes double-motor driving and double-differential transmission mechanism to realize active adjustment of the output rigidity of the actuator system, and has a more extensive use scene and application range.

The utility model relates to the technical field of concrete electric poles, and discloses a concrete electric pole production energy-saving maintenance device which comprises a maintenance mechanism, an adjusting mechanism is installed on the inner wall of the maintenance mechanism, a supporting mechanism is arranged in the maintenance mechanism, and a concrete electric pole body is installed on the inner wall of the supporting mechanism. A steam mechanism is installed on the inner wall of the curing mechanism, a drainage mechanism is installed on one side of the curing mechanism, the adjusting mechanism comprises a supporting frame, the outer portion of the supporting frame is fixedly connected to the inner wall of the curing mechanism, and a first motor is fixedly connected to the top of the supporting frame. According to the electric pole steam spraying device, gas in the steam box is sucked through the draw-off pump, enters the flow dividing pipe through the connecting pipe and is finally sprayed out through the spraying head, the first motor drives the rotating plate to rotate, drives the follow-up plate to move and controls the limiting block so as to adjust the positions of the flow dividing pipe and the spraying head, and it is guaranteed that steam is evenly sprayed to the surface of an electric pole.

The invention discloses a load-oriented self-adaption double-source waste heat mode switching control method, particularly relates to the technical field of industrial process control and waste heat comprehensive utilization, and aims to solve the problems that heat supply mode switching in an existing double-source waste heat system depends on artificial experience, waste heat supply cannot be matched in a self-adaption mode along with load change, and the working efficiency is low. The waste heat utilization rate is low, the heated load temperature fluctuation is large, and the operation stability is poor. A heat exchange topology model is established in a double-source waste heat system, a load heat demand track and a waste heat capacity fingerprint are synchronously constructed in a rolling time window, and a heat supply mode sequence is optimally selected by taking a load heat demand satisfaction degree, a waste heat utilization degree and a mode switching cost as indexes under an equipment operation constraint and a mode switching constraint. Therefore, the effects of automatically matching the heat load and the waste heat supply under the condition of dynamic change of the working condition and the load, giving consideration to temperature stability and efficient utilization of the waste heat, reducing manual adjustment and improving the system energy efficiency and the operation stability are achieved.

The invention relates to a magnetic suspension bearing control system and method and refrigeration equipment, and the system comprises a magnetic suspension bearing control module which is used for controlling a magnetic suspension bearing; the battery management module is electrically connected with the magnetic suspension bearing control module; and the master control module is respectively connected with the magnetic suspension bearing control module and the battery management module and can control the battery management module to store electric energy when the voltage of the magnetic suspension bearing control module is excessive and supply power to the magnetic suspension bearing control module when the power supply of the magnetic suspension bearing control module is insufficient. According to the technical scheme of the magnetic suspension bearing control system, through cooperative work of the battery management module and the master control module, the stability, the energy-saving performance and the response speed of the system are enhanced, the service life of equipment is effectively prolonged, and the maintenance cost is reduced. The integrated solution provides a safer, more reliable and more economical operating environment for high-performance and high-precision mechanical equipment.

The invention belongs to the technical field of direct-current power supply system management, and provides an independent management method for a split type parallel direct-current power supply lithium battery of bidirectional DC / DC conversion, a direct-current power supply is of a movable structure, and the system architecture of the direct-current power supply comprises a central controller and a plurality of parallel power sub-modules, the method specifically comprises the following steps: a central controller identifies a newly added power sub-module and completes system architecture configuration based on acquired state parameters of existing power sub-modules and main bus operation state data; the central controller dynamically selects a control mode and generates an execution instruction of charging and discharging power based on the number and state parameters of the power sub-modules, and controls the charging and discharging of each power sub-module; on the premise of ensuring uninterrupted power supply of the direct-current power supply, the central controller controls the lithium battery pack in the power sub-module to perform online capacity checking or activation operation. According to the invention, plug-and-play and independent control of the power sub-modules are realized through modular design.

This utility model relates to the field of floating wind power, and more particularly to a floating offshore wind power integration system based on fishery-wind complementarity. It includes a floating platform, a wind turbine system, an aquaculture system, and a suction caisson. The aquaculture system includes aquaculture nets. The wind turbine system is located above the floating platform, and the aquaculture nets are located below the floating platform. The suction caisson is connected to the floating platform. Wind power is provided through the wind turbine system, and fishery aquaculture is carried out through the aquaculture system, achieving fishery-wind complementarity integration. Furthermore, the design of the suction caisson ensures the stable arrangement of the entire system. The overall structure utilizes longitudinal sea space, has the characteristics of wide applicability to various sea areas, strong stability, and high energy utilization rate, and is expected to be widely used in the field of floating offshore wind power.

The invention relates to the technical field of container houses, and discloses an intelligent environment control system for a container house, a temperature acquisition module deploys temperature sensing nodes in a plurality of temperature control areas divided in the vertical direction of the container house, and obtains the internal air temperature value and the envelope surface temperature value of each temperature control area; the model construction module determines a thermal resistance characteristic coefficient according to the surface temperature value and the internal air temperature value of the enclosure structure, determines a ventilation heat exchange coefficient according to the ventilation flow value and the internal and external temperature difference, and constructs a dynamic thermal resistance model based on the thermal resistance characteristic coefficient and the ventilation heat exchange coefficient; a deviation analysis module performs deviation analysis on the internal air temperature value and a preset target temperature field to obtain a temperature field deviation degree, and calculates a temperature control demand level; the temperature control module generates a cooperative control sequence of variable frequency air conditioner power adjustment and ventilation device opening adjustment according to the temperature control requirement level and a preset energy consumption constraint condition, and the uniformity, comfort and energy efficiency of temperature control of the container house are improved.

The application provides a control method and a control device of compressor operation frequency and a water heater. The control method comprises the following steps: calculating the suction pressure attenuation ratio of the compressor; judging the frost degree of the heat exchange equipment according to the suction pressure attenuation ratio of the compressor; and dynamically setting the initial operation frequency of the compressor according to the frost degree of the heat exchange equipment. The control method further comprises the following steps: comparing the initial operation frequency of the compressor with the historical operation frequency of the compressor recorded in a database; and controlling the actual operation frequency of the compressor according to the comparison result. The control method can guarantee the rationality of the actual operation frequency of the compressor, solve the problem of low defrosting efficiency caused by the fixed operation frequency of the compressor during the defrosting process, and improve the energy efficiency.

The biomass particle hot blast stove comprises a stove body, a feeding assembly, a combustion assembly, a heat exchange assembly and a smoke exhaust assembly. The combustion assembly is arranged in the furnace body, a combustion chamber of the combustion assembly is sequentially divided into a drying pyrolysis area, a main combustion area and a burnout area in the conveying direction of biomass particles, and ordered partitioned combustion of preheating, sufficient combustion and complete burnout of fuel is achieved; the heat exchange assembly comprises a first heat exchange set arranged above the combustion assembly and a second heat exchange set arranged in the circumferential direction of the combustion assembly, and a three-dimensional and multi-layer waste heat recovery structure is formed. The combustion efficiency and the burn-off rate of the biomass particles are obviously improved; through the first heat exchange set and the second heat exchange set, efficient and sufficient recovery of combustion waste heat is achieved, and the overall heat efficiency and the energy utilization rate of the hot blast stove are greatly improved.

This invention provides a pump body assembly for a compressor and a compressor. The pump body assembly includes: a first cylinder with a suction channel, comprising a main channel and a branch channel, the axis of the main channel being inclined relative to the axis of the compressor; a connecting channel on a partition member, the axis of the connecting channel being inclined relative to the axis of the compressor; and an intake channel on a second cylinder, the axis of the intake channel being inclined relative to the axis of the compressor. The main channel, the connecting channel, and the intake channel are sequentially connected. The intake end of the main channel is located on the side of the first cylinder and / or on the end face of the first cylinder facing away from the partition member. The intake channel communicates with the chamber of the second cylinder, and the branch channel connects the main channel and the chamber of the first cylinder. The technical solution of this invention solves the problem of high suction resistance in the second cylinder of the compressor in the prior art, which leads to reduced overall energy efficiency.

The invention provides a pump body assembly, a fluid machine and heat exchange equipment. The pump body assembly comprises a first air cylinder and a second air cylinder, and a partition plate is arranged between the first air cylinder and the second air cylinder. The volume of the third air cylinder is smaller than that of the first air cylinder and that of the second air cylinder. The first air cylinder and the second air cylinder are located between the first flange and the second flange; the third air cylinder is located between the second flange and the first cover plate; and the second cover plate is located between the second flange and the third air cylinder, and a first exhaust cavity of the second air cylinder is formed between the second cover plate and the second flange. The problem that in the prior art, miniaturization design of an air cylinder in fluid machinery is limited is solved.

The invention provides a motor auxiliary heating control method and device for a pure electric heavy commercial vehicle and a server, and relates to the technical field of electric vehicle heat dissipation control, and the method comprises the steps: obtaining a battery management signal, a whole vehicle state signal and a heat management signal of the pure electric heavy commercial vehicle, and monitoring a battery heating request and a passenger compartment heating request in real time; determining a current system working mode according to the battery management signal, the whole vehicle state signal, the heat management signal, the battery heating request and the passenger compartment heating request; and matching a corresponding motor auxiliary heating control strategy according to the current system working mode, and executing the motor auxiliary heating control strategy to heat a battery or a passenger compartment. The low-temperature endurance mileage and the energy utilization efficiency of the vehicle can be remarkably improved.

The application discloses a kind of composite negative electrode material for all-solid-state iron air battery, its negative electrode and battery.The composite negative electrode material is composed of active substance and functional additive;Active substance is iron oxide doped with chemical element M, M is selected from one or more of W, Cr, Ti, Mn, V, Mo, Nb, Zr, Hf, Sn, Sb and Bi;Functional additive includes oxygen ion conductor and perovskite material.The application forms stable ion conductive network in situ during the reduction of iron oxide by doping with specific elements, and constructs multi-level composite conductive structure by combining oxygen ion conductor and perovskite, effectively solves the problem of ion transport collapse caused by phase change during the cycle of conversion-type negative electrode, significantly improves the coulomb efficiency, capacity development and cycle stability of all-solid-state iron air battery.

The utility model discloses a voice control oxygenation pump relates to oxygenation pump technical field, including the casing and set up in the casing, the air pumping assembly includes the air drum subassembly and is used for driving the air drum subassembly to move to produce the electromagnetic drive subassembly of oxygen, is equipped with the circuit board above the air pumping subassembly, and the circuit board is equipped with the air drum subassembly and the electromagnetic drive subassembly. The circuit board is integrated with a control unit, a voice recognition module used for converting voice into electric signals and a wireless communication module used for communicating with external equipment, the control unit comprises a microcontroller and a driving circuit, and the microcontroller outputs control signals to the electromagnetic driving assembly through the driving circuit. One side of the circuit board is electrically connected with a power supply unit, and the surface of the shell is provided with a display unit and a control adjusting part which are electrically connected with the circuit board. According to the oxygen increasing pump, the voice control structure is additionally arranged on the oxygen increasing pump, so that a user can conveniently operate the oxygen increasing pump through voice instructions, the use convenience of the user is improved, and the use experience of the user is greatly improved.

According to the variable-flow IGBT evaporative cooling system and the control method provided by the invention, dryness online calculation and closed-loop control based on pressure and density signals are introduced into the IGBT evaporative cooling system, so that accurate sensing and active regulation and control of a phase change state of a cooling medium are realized; therefore, it is ensured that the IGBT module is always in a gas-liquid mixing environment with the optimal heat exchange efficiency, the efficient heat dissipation capacity of phase change latent heat is fully utilized, local overheating or temperature fluctuation caused by excessive evaporation or insufficient liquid phase is avoided, the heat dissipation uniformity, stability and energy efficiency are fundamentally improved, and the heat dissipation efficiency is improved. The self-adaptive capacity of the system to different load working conditions is enhanced, and the guarantee is provided for long-term reliable operation and service life prolonging of the IGBT module through direct control over the key state quantity of dryness.

The invention provides a multi-friction damping anti-falling shock-absorbing spherical support, and relates to the technical field of bridge buildings. The multi-friction damping anti-falling shock-absorbing spherical support comprises an upper support plate, a plane sliding plate, a spherical crown lining plate, a spherical sliding plate, a pressure-bearing assembly, a high-friction sliding part, a wedge-shaped damping device, a lower support plate, a sleeve, an anchor rod and an anchor bolt, and the plane stainless steel sliding plate is arranged on the surface of an inner cavity of the upper support plate; the plane sliding plate is arranged above the spherical crown lining plate and makes contact with the plane stainless steel sliding plate, the spherical crown lining plate is placed on the spherical sliding plate, and the spherical sliding plate is installed at the upper end of the pressure bearing assembly. In the invention, the high-friction sliding piece is matched with the high-friction contact plate to realize primary friction energy consumption, the trapezoidal structure of the pressure-bearing assembly and the wedge-shaped damping device are used for extruding to realize secondary damping superposition energy consumption, and the limiting stop block is used for realizing rigid limiting, so that the problems of rigid collision and beam falling of a beam body are effectively solved; and the anti-seismic safety performance of the bridge is obviously improved.

This invention discloses a passive adsorption-selective catalytic reduction (CCR) device for diesel vehicles, comprising an electronically controlled nozzle, a first mixing chamber, a pre-catalytic oxidation-reduction chamber, a second mixing chamber, and a post-catalytic oxidation-reduction chamber arranged sequentially. The first mixing chamber includes a first urea solution inlet, a V-shaped breaker wall, and a W-shaped bottom mixing chamber. The V-shaped breaker wall is fixed to the rear wall of the first urea solution inlet pipe. The W-shaped bottom mixing chamber includes an inner cavity and an outer cavity. The inner cavity wall has staggered array openings, and the inner and outer cavities are connected through these openings. A guide wall structure is connected to the outermost pipe at the end of the first mixing chamber. The CCR chamber is connected to the end of the guide wall, and a three-zone integrated catalyst is located inside the CCR chamber. This invention solves the problems of severe NOx escape during the cold start phase, system complexity, and low-temperature urea crystallization in existing selective catalytic reduction technologies.

The application discloses a novel vehicle-mounted high-low voltage fusion power supply network, comprising: a modular 48V high-voltage energy storage unit, which is composed of N lithium ion battery packs with a nominal voltage of 48V in series, forms a high-voltage DC bus, and each battery pack is integrated with an independent battery management subsystem; a full-isolation three-port DC / DC converter, whose high-voltage input end is connected to the high-voltage DC bus, has two low-voltage output ends that are electrically isolated from each other and completely isolated from the high-voltage side, wherein the first low-voltage output end is a 12V output end, directly connected to a vehicle 12V electrical network, and the second low-voltage output end is a 48V output end, serving as a medium-voltage distribution bus; through modular high-voltage energy storage, full-isolation multi-port power conversion, intelligent power distribution control and hardware-level redundancy design, the architecture completely cancels the 12V lead-acid storage battery, and realizes efficient, safe and bidirectional flow of energy among multiple voltage domains.

This invention discloses a dual-motor hair dryer, relating to the field of hair dryer technology. It includes a housing, a handle, and a mounting cover installed inside the housing. It also includes a dual-system blowing assembly, a drive assembly, a first adjustment assembly, and a second adjustment assembly located inside the mounting cover. In use, the right-side main motor fan system, through the cooperation of the air guide tube, main air duct, and inner air duct, delivers gas to the inner cylinder, evenly passing through the heating element. Simultaneously, the left-side auxiliary motor fan system delivers gas to the outer air duct through the air guide tube, auxiliary air duct, and flow equalization pipe. The gas flows through the annular air cavity, forming an annular air curtain that surrounds the hot air along the central axis. The annular cold air curtain and the hot air along the central axis are coaxially superimposed. Furthermore, the main and auxiliary air ducts are isolated, ensuring that the high temperature of the main air duct does not affect the auxiliary motor, resulting in high operating efficiency for the auxiliary motor. The main motor also experiences stable load due to the smooth air duct, significantly improving the overall energy efficiency and further achieving energy savings.

The application discloses a control method, an energy storage power supply and a storage medium. The energy storage power supply comprises a fan. The method comprises the following steps: acquiring temperature information, noise information and power consumption information of the energy storage power supply, wherein the noise information and the power consumption information are determined based on a duty ratio of a control signal of the fan; calculating a first generation value corresponding to the temperature information, a second generation value corresponding to the noise information and a third generation value corresponding to the power consumption information of the energy storage power supply under different duty ratios of the fan; calculating total generation values corresponding to different duty ratios based on the first generation values, the second generation values and the third generation values corresponding to the different duty ratios; and controlling the fan to operate based on the duty ratio with the minimum total generation value. The fan is controlled to operate according to the duty ratio corresponding to the minimum generation value, so that the energy storage power supply realizes dynamic balance among energy efficiency improvement, use safety and user experience, and the system stability is enhanced. The self-adaptability of the fan under different environments and use scenarios is improved, and the applicability and expansibility of the energy storage power supply are improved.

The application provides a data center liquid cooling system based on a double-plate heat exchanger, comprising a refrigeration side plate heat exchanger, a cooling side plate heat exchanger, a CDU, a water pump and an intelligent control system. The system adopts a 2N configuration, realizes automatic switching of the refrigeration / cooling side plate through intelligent control, maximizes the use of natural cold sources and improves energy efficiency. The equipment is centrally arranged in the air cabinet room, which is physically isolated from the liquid cooling room, thereby improving space utilization. The system adopts a closed cycle design and is equipped with multiple safety protection measures, has high reliability, energy saving and efficiency, convenient maintenance and the like, and is particularly suitable for cooling requirements of high-density data centers.

The utility model discloses a hydrogen production and hydrogenation integrated device, and relates to the technical field of hydrogen production, the hydrogen production and hydrogenation integrated device comprises an electric heater, a hydrogen-water separation device, a hydrogenation device and a passage switching assembly, the hydrogen-water separation device is used for outputting first to-be-treated hydrogen; the hydrogenation device is used for outputting second to-be-treated hydrogen; two input ends of the passage switching assembly are respectively connected with the hydrogen-water separation device and the hydrogenation device, and an output end of the passage switching assembly is connected with an input end of the electric heater; the access switching assembly is used for controlling the hydrogen-water separation device to be communicated with the electric heater, so that the electric heater performs heat treatment on the accessed first to-be-treated hydrogen; or, the hydrogenation device is controlled to be communicated with the electric heater, so that the electric heater conducts heat treatment on the accessed second to-be-treated hydrogen. Therefore, the electric heater can run all the time, the time required by cold start preheating is eliminated, and the problem that the cold start time is too long is effectively solved.

This application discloses a digital twin control method for facility poultry farming environments based on deep spatiotemporal data fusion, relating to the field of poultry farming technology. It proposes a spatiotemporal sequence prediction model for environmental parameters using a bidirectional long short-term memory network (VMD-Attention-BiLSTM) that integrates variational mode decomposition and attention mechanisms, effectively overcoming the system's large time lag. A digital twin decision engine based on nonlinear model predictive control is constructed, and the optimal control sequence for energy consumption and environmental quality is solved under multiple constraints by establishing a joint state equation for thermodynamics and gas diffusion. Specifically, for complex winter conditions, a ventilation-heating collaborative game strategy based on real-time heat loss compensation is designed. Adaptive sliding mode control with radial basis function neural network compensation is introduced into the underlying execution unit, significantly enhancing the system's anti-disturbance capability. This achieves precise environmental control under complex conditions, improving poultry welfare and energy efficiency.

This invention proposes a management method for the radio resource control layer in a 5G mobile communication network, relating to the technical field of 5G wireless communication. First, network data analysis elements collect and preprocess terminal session state data and network energy efficiency data. Based on the preprocessed terminal session state data and network energy efficiency data, a deep Q-network model is used to select the optimal adjustment action for the timing threshold of the RRC inactive timer, and analysis information containing this adjustment action is generated. This information is then converted into RRC auxiliary information and sent to the radio access network via access and mobility management elements, dynamically adjusting the timing threshold of the RRC inactive timer and managing the RRC connection state. This scheme improves the energy efficiency of the access network under different network load conditions while avoiding air interface signaling overhead and service latency caused by frequent terminal reconnections, enhancing the flexibility and accuracy of terminal state migration management.

The application relates to a hydrogen production system. The hydrogen production system comprises an electrolysis cell module and a steam heat pump module. The steam heat pump module comprises a heat pump assembly, a water storage tank and a flash tank. The heat pump assembly comprises a condenser. An outlet of the water storage tank is connected to a cold side inlet of the condenser. A cold side outlet of the condenser is connected to an inlet of the flash tank. An outlet of the flash tank is connected to an inlet of a fuel gas preheater. The steam heat pump module of the application only needs a small amount of electric energy to generate a large amount of water vapor. In the case of the same water vapor yield, the power consumption of the steam heat pump module is only about half of the power consumption of the water vapor generator, achieving a more energy-saving effect. In the case of the same power, the water vapor yield of the steam heat pump module is much larger than the water vapor yield of the steam generator, so that the hydrogen production system of the application can meet the demand of a high-power hydrogen production system.

The application discloses a SOFC integrated power generation system containing a diesel pretreatment unit, and belongs to the technical field of solid oxide fuel cells. The SOFC integrated power generation system at least comprises a diesel pretreatment unit, a SOFC power generation unit and an intelligent control system. The pretreatment unit converts diesel into high-purity hydrogen-rich gas through desulfurization, denitrification and autothermal reforming processes. The SOFC power generation unit adopts a metal support type stack and realizes efficient power generation in combination with heat management. The intelligent control system can realize real-time monitoring and dynamic adjustment to ensure stable operation of the system. The power generation efficiency of the SOFC integrated power generation system can reach 55% to 58%, the fuel utilization rate reaches more than 90%, and the emission is low. The SOFC integrated power generation system is suitable for distributed power generation, mobile power sources, emergency power sources and automobile fuel cells and the like application scenarios, and has the characteristics of high efficiency, environmental protection and stability.

The application discloses a kind of no sampling resistance square wave control overcurrent protection method, method includes: real-time acquisition digital sampling sequence of direct current bus voltage, synchronous analysis logic state combination of three-phase PWM driving signal;According to the mapping table of pre-stored commutation state machine, the logic state combination is converted into current effective conduction phase identification, and the signal of corresponding current detection enable window is generated, and enable window is limited to the interval of voltage oscillation attenuation completion after PWM opening to before off before freewheeling protection;During the effective period of enable window, the digital band-pass filtering is carried out to bus voltage digital sampling sequence, the voltage drop component of characteristic frequency band is extracted, and the time-domain integral value and the rate differential value of voltage drop component are calculated.The application is reconstructed by the current of no sampling resistance technology and dynamic protection strategy, while reducing hardware cost, significantly improve system reliability, effectively solve the protection failure problem of traditional scheme under commutation interference, high-speed working condition and transient impact.