118 results about "Diesel engine generator" patented technology

The invention discloses an electric power control method based on a diesel generator, commercial power and photovoltaic grid connection. The method comprises the following steps: acquiring operation data of commercial power, a diesel generator and photovoltaic-energy storage through an energy management system, constructing a multi-target dynamic optimization model, and distributing power by taking the lowest comprehensive operation cost, the highest power supply reliability and the minimum carbon emission as targets; the power analysis and regulation unit adopts a double-loop mechanism of outer-loop Kalman filtering prediction compensation and inner-loop model prediction control, synchronizes the voltage, frequency and phase of the side to be connected with the grid and the power grid side, and smoothly switches the power change rate of each energy source in the process through a self-adaptive sliding mode control strategy; and the grid-connected switching unit intelligently pre-judges the grid-connected switching opportunity by using a long short-term memory (LSTM) network and fuzzy logic fusion model. According to the invention, the energy utilization efficiency and the power supply stability are improved, multi-energy intelligent dynamic regulation and control are realized, the comprehensive operation cost of the system is effectively reduced, and reliable power supply under complex working conditions is ensured.

The invention discloses a light-diesel hybrid energy storage system and a control method thereof, and belongs to the field of microgrids. The system comprises a photovoltaic power generation unit, a diesel generator set, a hybrid energy storage unit (a storage battery and a super capacitor), an AC / DC bus, a bidirectional AC / DC converter and a system controller. The controller executes hybrid energy storage frequency division control (without sampling load power and distributing power through bus voltage), V / f control and nine multi-mode energy management strategies, and monitors parameters such as photovoltaic output, load power, energy storage charge state and the like in real time to realize intelligent mode switching. The super capacitor preferentially responds to the pulse load, and the voltage fluctuation ratio is smaller than or equal to 5%; the service life of the storage battery is prolonged in combination with energy storage charge state threshold management; photovoltaic maximum utilization enables the system efficiency to be greater than or equal to 90%, and the diesel oil consumption is obviously reduced. The method is suitable for power grid coverage difficulty scenes such as off-network communication base stations, remote sentries and emergency power supply stations, and has high reliability and maneuverability.

The invention discloses a hybrid energy storage power supply system for diesel engine replacement and an energy management method, and relates to the technical field of hybrid energy storage power supply and management methods. An assembly with the photoelectric conversion efficiency exceeding 23% and a 10KV-level string type inverter are adopted, and a photovoltaic-energy storage combined MPPT control function is integrated; the lithium iron phosphate energy storage system is matched with a bidirectional PCS and an active equalization technology, and is designed according to 1.5 times of daily peak-valley difference and 2 hours of emergency standby power; the diesel generating set group is started in a grading manner according to load gaps, and is matched with a 10KV / 380V intelligent charging unit; the coordination control center realizes two-dimensional prediction and coordinated scheduling based on an LSTM neural network, couples each unit through a 10KV intelligent bus system, divides load priorities, collects meteorological and equipment parameters, and constructs photovoltaic priority consumption, energy storage stabilization fluctuation, diesel generator guarantee emergency, and flexible and adjustable charging operation modes. The method has the advantages that the energy utilization efficiency is improved, the power supply stability is enhanced, the whole-cycle cost is reduced, limited operation and maintenance scenes are adapted, and diversified power supply requirements are met.

The invention discloses an island micro-grid frequency coordination control method based on flywheel and battery hybrid energy storage, and provides a hybrid energy storage coordination control method for solving the problem that a diesel generator in an island micro-grid is low in inherent response speed and difficult to deal with rapid load disturbance in time. The method combines the advantages of a flywheel energy storage system (FESS) and a battery energy storage system (BESS) to construct a multi-time-scale frequency regulation mechanism: the FESS is responsible for absorbing or releasing a high-frequency power component and quickly responding to instantaneous fluctuation; the BESS bears an intermediate-frequency power component and realizes medium-term energy regulation; and the diesel generator compensates the low-frequency power component and maintains long-term steady-state operation. Through the multi-unit collaborative hierarchical control, the frequency stability and the operation reliability of the island micro-grid are remarkably improved, the dynamic regulation pressure of the diesel engine is reduced, and the frequent charge-discharge cycle of the battery is reduced, so that the service life of the energy storage system is prolonged.

The invention relates to a diesel-optical-storage hybrid system energy storage configuration method and system considering inertia response. The method comprises the following steps: determining a minimum demand value of inertia of a diesel-optical-storage hybrid system according to a micro-grid frequency stability index; the minimum demand value of the virtual inertia of the optical storage VSG is obtained according to the minimum demand value of the inherent inertia of the diesel generator and the minimum demand value of the inertia of the diesel-optical storage hybrid system; further obtaining an output power constraint limit value of the optical storage VSG; the dynamic characteristics of the photovoltaic cell are described as an output power curve by adopting an implicit curve fitting mode, and the maximum output power fluctuation range of the photovoltaic cell under the inertia frequency modulation scale is obtained; and the maximum charging and discharging power of the storage battery is determined by combining the output power constraint limit value of the optical storage VSG, so that the maximum power configuration of energy storage is obtained. Compared with the prior art, the method has the advantages that the frequency collapse risk caused by photovoltaic fluctuation or response delay of the diesel generator is remarkably reduced, and an energy storage plan considering safety and cost is provided for a novel power system.

The utility model discloses a diesel generator flue gas purification mechanism for civil air defence engineering, including air inlet pipe and purification bin, the air inlet pipe one end is linked with diesel generator exhaust pipe in civil air defence engineering power generation room intercommunication, the other end of air inlet pipe is inserted into the purification bin and the opening direction is perpendicular to downward, the open end position of air inlet pipe in the purification bin is connected with the shunt joint, each interface of shunt joint all is connected with the jet pipe that the air hole of pipe body lateral wall is evenly set up, the utility model relates to civil air defence engineering technical field, utilize liquid supply booster pump and press into the spray subassembly in alkaline solution (15% magnesium hydroxide compound agent), and further via spray subassembly to the spray of filler layer, make the nitrogen monoxide, nitrogen dioxide, sulfur dioxide and particulate matter etc. in tail gas contact with the alkaline water mist in purification bin and filler layer, to the purification treatment of nitrogen monoxide, nitrogen dioxide, sulfur dioxide and particulate matter.

The utility model relates to the technical field of tail gas particulate matter trapping, in particular to a diesel generator tail gas particulate matter trapping device. According to the technical scheme, the air purifier comprises a mounting shell and a filter element, an air inlet pipe is fixed to the front end of the mounting shell, an exhaust pipe is fixed to the tail end of the mounting shell, a core sleeve is fixed to the middle of the interior of the mounting shell, a pair of mounting grooves are formed in the outer side of the core sleeve, the filter element is arranged in the mounting grooves, and open grooves are formed in the positions, aligned to the mounting grooves, of the mounting shell. A sealing cover is installed in the opening groove, rotating plates are rotationally connected to the positions, located at the two ends of the core sleeve, in the installation shell, and flow guide holes are formed in the rotating plates. According to the utility model, particulate matters are captured by utilizing the two filter elements which are alternately collected in the mounting shell, and tail gas can be drained into different mounting grooves through the rotation of the rotating plate, so that the filter elements can be disassembled and cleaned under the condition that the machine is not stopped.

The invention discloses a tail gas waste heat recovery device for a generator set, and belongs to the field of waste heat recovery. Comprising a diesel generating set, recycling boxes and ventilation pipes, the four recycling boxes are arranged at the top of the diesel generating set and communicate with one another through the ventilation pipes, the starting ends of the ventilation pipes communicate with the exhaust end of the diesel generating set, and recycling parts are arranged in the recycling boxes. When the reciprocating lead screw rotates, the lead screw nut can be driven to transversely move along the lead screw, then the baffle is driven to push the heat conduction fins to transversely slide along the heat absorption pipe, meanwhile, the retraction part on the middle partition plate converts transverse movement of the sliding tooth block into vertical movement of the tooth plate through transverse-vertical meshing transmission of the double gears, and the heat conduction fins are driven to transversely slide along the heat absorption pipe. And the baffle is driven to slide downwards and retract, automatic reciprocating circulation of pushing and scraping, downward retraction and secondary pushing of the baffle is achieved through cooperation of the baffle and the baffle, and a recycling box does not need to be manually disassembled to clean the heat absorption pipe.

The utility model provides a diesel generator mechanical speed regulator test bench. The diesel generator mechanical speed regulator test bench comprises a mechanical speed regulator, a mechanical speed regulation transmission case, a detection device and an instrument panel. Wherein the mechanical speed regulator is arranged on the mechanical speed regulation transmission case through a base and is controlled to operate through the mechanical speed regulation transmission case; the mechanical speed regulation transmission case is connected with a lower computer device and an electronic speed regulator of the intelligent verification device, and operates based on test signals received from the lower computer device and the electronic speed regulator. The detection equipment is arranged on the mechanical speed regulator, is connected with the lower computer equipment and is used for transmitting detected operation parameters of the mechanical speed regulator to the lower computer equipment; and the instrument panel is arranged behind the mechanical speed regulator, is respectively connected with the mechanical speed regulator and the mechanical speed regulation transmission case, and is used for displaying operation parameters of the mechanical speed regulator. The operation state of the diesel engine speed regulation system can be monitored, the fault judgment and decision time is shortened, the factory return test verification cost of a mechanical speed regulator can be remarkably reduced, and the reliability and usability of the speed regulation system are guaranteed.

The application discloses a kind of wind farm isolated network heat supply system operation control method and device.Wind farm isolated network heat supply system operation control method includes based on the active stable operation state of wind farm isolated network heat supply system, determine the active output state of diesel generator, fan and network type energy storage unit;Based on the reactive stable operation state of wind farm isolated network heat supply system, determine the reactive output state of diesel generator, fan and network type energy storage unit;Based on the voltage stable operation state of wind farm isolated network heat supply system, determine the voltage output state of diesel generator, fan, network type energy storage unit and static var compensator;According to active output state, reactive output state and voltage output state, to complete the operation control of wind farm isolated network heat supply system.Frequency is adjusted quickly, to ensure that system frequency is stably operated, and the quick grid connection and operation of system are realized.

This invention provides a controller for a low constant-speed traction system of a multi-mode new energy locomotive, comprising: an excitation control module connected to a diesel generator set; an uncontrolled rectifier module connected to both the diesel generator set and a DC-DC converter module; a DC-DC converter module connected to the uncontrolled rectifier module, an energy storage device, and a traction module; a traction module connected to the diesel generator set, the DC-DC converter module, and a load; and a control system connected to the excitation control module, the DC-DC converter module, and the traction module. The control system acquires information on the external power supply type and control mode requirements via hard-wired or network signals. Through internal communication, it regulates the cooperation of each module to dynamically adjust the output torque, output power, and power change rate, achieving optimized selection of the target speed and redundancy and coordinated control of the current axle speed. This addresses the requirements of new energy locomotives for low constant-speed loading / unloading and extremely low-speed loading operations.

This utility model relates to the field of generator technology, specifically to a noise reduction device for a diesel generator set, including an outer shell for accommodating the diesel generator set and a first isolation plate and a second isolation plate welded and fixed inside the outer shell. The top of the outer shell is provided with an oil inlet, and the bottom end of the oil inlet is connected to an oil supply pipe whose side end is connected to the diesel engine of the diesel generator set. The inner wall of the outer shell is provided with a sound-absorbing layer, and the bottom of the inner wall of the outer shell is provided with a first shock-absorbing support for supporting the diesel engine of the diesel generator set, and the bottom of the inner wall of the outer shell is provided with a second shock-absorbing support for supporting the generator of the diesel generator set.

The invention relates to the technical field of nuclear power plants, in particular to a fault monitoring method and system for an emergency diesel generator, electronic equipment and a medium. Equipment health state parameters, equipment operation condition parameters and equipment operation environment parameters need to be monitored in real time firstly; performing fault threshold analysis based on the equipment health state parameters, the equipment operation condition parameters and the equipment operation environment parameters, and determining a generator fault threshold; carrying out measuring point signal acquisition on the emergency diesel generator to obtain an equipment measuring point acquisition signal; performing signal analysis on the equipment measuring point acquisition signal based on the generator fault threshold to obtain a signal analysis result; and if the signal analysis result meets a preset fault judgment condition, executing a fault response operation. The core of the method is that an alarm threshold value is converted from a fixed value to a variable dynamically adjusted along with the equipment state, the operation condition and the environmental factor, so that the accuracy and the reliability of fault early warning are remarkably improved.

The utility model discloses a kind of light storage diesel integrated equipment, relating to energy storage cabinet technical field, including base, ventilation mechanism, cleaning mechanism and blocking mechanism, the top of base is installed with diesel generator, diesel drum, energy storage cabinet, metering cabinet and switch board, ventilation mechanism is set to the front of energy storage cabinet, cleaning mechanism is set to the front of ventilation mechanism, positioning mechanism is set between cleaning mechanism and energy storage cabinet, blocking mechanism is set to the back of ventilation mechanism, connecting mechanism is set between blocking mechanism and cleaning mechanism.The utility model energy storage cabinet works by ventilation mechanism and carries out ventilation and heat dissipation, when needing to clean ventilation mechanism, directly through cleaning mechanism on the front of energy storage cabinet to clean dust, and in cleaning process, by the cooperation of blocking mechanism, dust can be avoided to receive extrusion of cleaning mechanism and enter energy storage cabinet inside through ventilation hole, to ensure the cleaning effect of cleaning mechanism.

The application discloses a control system and implementation method for improving instantaneous power of a diesel generator, comprising a super capacitor and a super capacitor, the super capacitor and the super capacitor are connected with an inverter through a relay normally closed contact, the inverter comprises four IGBT tubes; the control system further comprises a diesel generator, a voltage monitoring sensor, a power load, one end of the diesel generator is connected with a rectifier voltage stabilizer, the other end is connected with the ground, one end of two input ends of the voltage monitoring sensor is connected with the rectifier voltage stabilizer, the other end is connected with the ground, one end of an output end of the voltage monitoring sensor is connected with a relay coil, the other end of the relay coil is connected with the ground, one end of the power load is connected with the rectifier voltage stabilizer, and the other end is connected with the ground. The application has the following advantages: when instantaneous voltage reduction trend appears due to sudden increase of the power load, the super capacitor is used as a supplementary energy source, instantaneous output power of the diesel generator is improved, and stable voltage and frequency are quickly responded.

The invention discloses an industrial and commercial energy storage cabinet, and relates to the field of energy storage equipment, the industrial and commercial energy storage cabinet comprises a cabinet and internal components thereof, the cabinet is provided with an installation space with openings at the front end and the rear end, and the installation space comprises an electrical cabin, a fire-fighting cabin, a liquid cooling cabin, a battery pack storage cabin and an energy management cabin; the electrical cabin comprises a photovoltaic input air switch and a diesel generator input air switch, the photovoltaic input air switch is electrically connected with photovoltaic equipment through an external circuit, and the diesel generator input air switch is electrically connected with a diesel generator through an external circuit; the input power source of the energy storage cabinet is adjusted by changing the opening and closing states of the photovoltaic input air switch and the diesel generator input switch. According to the energy storage cabinet, the input power source of the energy storage cabinet is adjusted by changing the opening and closing states of the photovoltaic input air switch and the diesel generator input switch; the liquid cooling system is distributed in the installation space of the energy storage cabinet, and stable operation of the internal environment of the energy storage cabinet is guaranteed through cooperative work of multiple assemblies.

This invention belongs to the field of marine hybrid power system control and discloses an energy allocation optimization method and system for hierarchical control of a marine DC microgrid. The method includes: establishing a top-level optimized power allocation strategy model with the goal of minimizing diesel generator output and battery life loss; solving the top-level optimized power allocation strategy model using the second-generation non-dominated sorting genetic algorithm NSGA-II and the top-to-bottom solution distance method TOPSIS to obtain the power allocation scheme with optimal overall performance; introducing power regulation and voltage compensation in the intermediate layer, combined with droop control in the execution layer, to form an improved droop control, thereby achieving power allocation and current sharing control. This invention achieves optimal overall performance in marine power systems, including extended battery life, reduced fuel consumption, and efficient, energy-saving, and environmentally friendly operation.

The present application belongs to the field of fire fighting technology, and particularly relates to a remote fire fighting system and a diesel generator set using the system. The remote fire fighting system comprises: a double-layer pipeline, which comprises: an outer corrugated pipe and an inner corrugated pipe, a sealed chamber is formed between the outer corrugated pipe and the inner corrugated pipe, and the inner corrugated pipe is used for connecting a diesel generator and an oil tank; a gas circulating device, a carbon dioxide fire extinguishing tank, a pressure sensor, a temperature sensor, and a remote control module; the remote fire fighting system and the diesel generator set using the system are characterized in that the double-layer pipeline is arranged in the structure of the outer corrugated pipe and the inner corrugated pipe, so that the sealed chamber is formed between the outer corrugated pipe and the inner corrugated pipe, and when the side wall of the inner corrugated pipe is broken and oil leakage occurs, the sealed chamber is inflated and pressurized to prevent diesel from leaking; meanwhile, the inner corrugated pipe is arranged in the structure of being spliced by a sub-inner pipe and a connecting pipe, and when the oil temperature in the inner corrugated pipe is increased, the connecting pipe can be expanded under stress to reduce the oil pressure.

The utility model provides a high-efficiency intelligent wind-light-diesel-storage micro-power station, which relates to the field of wind-light-diesel-storage micro-grid power stations and comprises a box body used for providing support, a diesel generator cabin used for installing a diesel generator, a high-voltage power distribution cabin used for installing power distribution equipment and an energy storage cabin used for installing a battery. An inner cavity of the diesel generator cabin is fixedly connected with a variable-frequency direct-current diesel generator set used for power generation, and a hybrid inverter used for AC / DC conversion and a wind driven generator controller used for controlling wind power generation are installed in an inner cavity of the high-voltage power distribution cabin. According to the utility model, the EMS controller is adopted to carry out energy scheduling in a unified manner, is respectively connected with the hybrid inverter, the wind driven generator controller and the three-phase AC ammeter through RS485, and is respectively connected with the frequency conversion DC diesel generator set and the BMS of the energy storage battery through CAN2.0B, so that a unified control architecture is formed, the control complexity is reduced, and the control precision is improved at the same time.

The utility model discloses a flange chuck for diesel generator pipeline welding, and belongs to the technical field of diesel engine pipelines. The device comprises a chuck which comprises a limiting straight groove and calipers; a chuck base; the adjusting assembly comprises a two-way screw rod, a knob handle and a T-shaped sliding block; the connecting piece, the chuck and the chuck base are fixed through a plurality of set screws surrounding the chuck base, and a flat key is arranged at the bottom of the chuck base and installed on the positioning stand column through fixing screws. According to the flange chuck for welding the diesel generator pipeline, the design of the limiting straight groove and the bidirectional lead screw is adopted, the knob handle controls the T-shaped sliding block to flexibly adjust the distance between flange mounting holes so as to adapt to flanges of different specifications, adaptability and working efficiency are improved, the chuck and the base can rotate relatively, the angle of the flange is accurately adjusted, and the chuck and the base are fixed through the set screw. The multi-directional adjustment of the flange is realized, the position accuracy in the machining or welding process is ensured, and the operation flexibility is improved.

The utility model relates to the technical field of landscaping spraying equipment, in particular to a landscaping spraying device which comprises a machine body, a compartment shell used for protection is assembled on the surface of one side end of the top of the machine body, and a base plate used for supporting is assembled in the compartment shell through bolts. A sponge pad abutting against the inner wall of the compartment shell is bonded to the surface of the bottom end of the base plate, and multiple sets of screws are welded to the surface of the top end of the base plate. In the using process of the spraying equipment for landscaping, the diesel generator body in the compartment shell on the outer side of the machine body can operate and generate electric power, then the electric power can be provided for the machine body, and a spraying structure on the machine body can spray for landscaping; and meanwhile, the frame on the periphery of the diesel generator body and the screw on the surface of the base plate in the compartment shell are mutually clamped, the position of the frame is limited through the rotary seat on the periphery of the screw, so that the frame is convenient to disassemble and assemble, and the diesel generator body can be disassembled and maintained.

The agricultural fertilization and irrigation all-in-one machine comprises a vehicle body, wheels are arranged on the two sides of the vehicle body, and a traction frame is arranged at the front end of the vehicle body; the diesel generator is arranged above the front end of the vehicle body, and a controller is arranged at the front end of the diesel generator; the fertilization and irrigation mechanism is arranged in the vehicle body; the side telescopic supporting mechanisms are symmetrically arranged on the two sides of the vehicle body; the fertilization and irrigation mechanism comprises a tank body, a servo motor, a first water pump, a second water pump and an upper cover body, a stirring shaft and stirring blades can be driven by the servo motor to rotate, fusion of fertilizer and water in the tank body is accelerated, the first water pump and the second water pump are arranged, on one hand, water can be conveniently added into the tank body, and on the other hand, fertilizer and water can be rapidly discharged; the irrigation efficiency is improved; and the upper cover body and the tank body are fixed through the hasp, so that after use, the hasp can be opened, the upper cover body, the servo motor and the like are integrally moved out of the tank body, and then the tank body can be cleaned.

This invention discloses a control method for an energy storage inverter coupled to a diesel generator, including a harmonic suppression step, a reactive power compensation step, and a bus adjustment step. The harmonic suppression step includes: dynamically adjusting the proportional control parameters of the current loop control based on the diesel generator voltage, and introducing a filtering module in the feedforward signal processing. The reactive power compensation step includes: actively outputting reactive power compensation based on load characteristics to offset the influence of capacitive loads on the diesel generator power factor. The bus adjustment step includes: real-time detection of whether the AC side voltage exhibits characteristics of the diesel generator; if so, adjusting the bus reference voltage value to a safe range close to the overvoltage protection value. This invention's control method for an energy storage inverter coupled to a diesel generator improves the adaptability of the energy storage inverter to different diesel generators.

The utility model is suitable for the technical field of electronics, and provides a micro-grid testing device and a micro-grid testing system, and the micro-grid testing device comprises a control module which is used for outputting a frequency control signal and a voltage control signal; the motor module is connected with the control module and used for adjusting the power supply frequency according to the frequency control signal and rotating under the adjusted power supply frequency; the voltage regulating plate is respectively connected with the control module and the generator and is used for outputting corresponding exciting current according to the voltage control signal; and the generator is connected with a rotating shaft of the motor module and is used for generating power and outputting target voltage under the action of the exciting current and the driving of the motor module. Compared with the prior art, the diesel generating set can be replaced by the motor module and the generator, the motor module and the generator can completely simulate the electrical and communication characteristics of the diesel generating set, the noise is low, the pollution is small, regular purchase of diesel oil is avoided, and the purchase cost is reduced.

The utility model provides a supporting device for a diesel generator. The supporting device comprises a fixing frame, a mounting plate, two quick release mechanisms, two elastic supporting mechanisms and a plurality of buffering assemblies. The quick release mechanisms are symmetrically arranged on the left side and the right side of the upper end face of the mounting plate, the fixing frame is detachably connected with the two quick release mechanisms, and the fixing frame is fixedly connected with a bottom shell of the diesel generator; the two elastic supporting mechanisms are symmetrically arranged at the front and rear ends of the lower end face of the mounting plate. The multiple buffer assemblies are evenly arranged on the lower end face of the mounting plate, and the top of each buffer assembly abuts against the lower end face of the mounting plate. According to the supporting device for the diesel generator, the problem that vibration of the diesel generator is easily conducted to the ground due to failure of a damping structure of a supporting device in the prior art is solved.

The utility model discloses a split type diesel generating set power station sliding lifting structure, which relates to the technical field of diesel generating set product maintenance and comprises a support, a sling, a lifting ring, a chain hoist and a connecting piece, the connecting piece is detachably arranged at the upper end of the support, the chain hoist is connected with the connecting piece, the sling is connected with the chain hoist, and the lifting ring is connected with the chain hoist. Two hanging rings are arranged at two ends of the sling; the support comprises stand columns, an upper cross beam and an auxiliary plate, the upper ends of the two stand columns are detachably connected with the two ends of the upper cross beam, the auxiliary plate is arranged in the upper cross beam, sliding holes are formed in the upper cross beam and the auxiliary plate, and the connecting pieces are detachably arranged in the sliding holes. According to the utility model, the position of the chain block on the bracket can be adjusted so as to adapt to generator sets with different widths; the strip-shaped holes are formed in the upper cross beam and matched with the bolts to be connected with the stand columns, the distance between the two stand columns can be freely adjusted, and base cross beams with different widths can be conveniently adapted.

This invention provides a diesel generator set speed control method based on power feedforward, characterized by the following steps: Step M1: The generator set controller reads the current speed N and rated speed n of the diesel generator set from the speed sensor; reads the current active power P of the pulse load. t The active power P at the previous sampling time t' The current active power P t and the calculated power differential signal P e The signal is transmitted to the feedforward controller; Step M2: Calculate the feedback control signal; Step M3: Calculate the feedforward control signal Y. a Step M4: Feedback control signal and feedforward control signal Y a A voltage signal is generated by superimposing these signals using a specific algorithm and output to the electronic speed governor. This changes the oil supply, thereby altering the engine speed and bringing the power and speed deviations close to zero. This invention enables generator sets to achieve high-precision and rapid response to fast-dynamic loads such as pulse loads, and improves system stability.

The invention provides a cooling and noise-reducing container type diesel generator set, belongs to the technical field of generator sets, and solves the technical problems of high noise, low heat dissipation efficiency, insufficient vibration isolation and the like of the existing generator set. Comprising a container assembly, a noise elimination and exhaust assembly is fixed to the upper end of the container assembly, a vibration isolation base assembly, a heat dissipation assembly, a sound insulation cabin, a control cabinet and a power distribution cabinet are arranged in the container assembly, a diesel generator assembly is arranged in the sound insulation cabin, and a plurality of vibration reduction assemblies are arranged between the diesel generator assembly and the bottom in the sound insulation cabin; the diesel generator assembly is provided with a waste gas exhaust pipe, a water inlet pipe and a water outlet pipe. Through the design of source sealing and multi-layer isolation, multiple silencing treatment is carried out, operation noise is reduced, cold and hot air duct separation is adopted, cooling water of equipment and an engine in a cabin is cooled, the heat dissipation capacity is high, a multi-stage vibration isolation structure is arranged, vibration is restrained, stable operation is ensured, and structural noise transmission is reduced.

The application discloses a multi-section security MCC common single diesel generator set emergency power supply switching method, and belongs to the field of thermal power generation, which comprises the following steps: when the working and standby power supply of any section of security MCC are all lost, the CTTS sends a start instruction to the diesel generator set; after the diesel generator set is started, the section of security MCC is switched to diesel supply; the rest of the lost sections are switched in a preset order until all the lost sections are switched to diesel supply; when the working power supply of any section of security MCC is restored, the ATS switches to the power supply and sends a synchronization instruction; after the diesel generator set is synchronized, the section of CTTS control is parallel to the plant power for a short time, then the plant power is switched back, the connection with the diesel generator set is disconnected and an exit signal is sent; after receiving the signal, the diesel generator set delays and disconnects the corresponding contact breaker; the above-mentioned restoration steps are repeated until all the security MCCs restore the plant power supply, and finally the diesel generator set is disconnected from the total outlet breaker and is stopped. Through grouping restoration and synchronization switching, the application realizes the orderly access of the security MCC to the diesel generator after the power supply is lost, and the smooth switching back to the plant power when the power supply is restored, thereby ensuring the continuous and reliable power supply.

The invention relates to the technical field of energy storage power generation, in particular to a photovoltaic hybrid energy storage power generation system and a control method thereof, and the system comprises a photovoltaic power generation module, a wind power generation module and a diesel power generation module, a storage battery pack, and a power conversion unit composed of a controller, a rectifier and a double-input inverter. The system control unit monitors the electric quantity of the storage battery and executes a three-level control strategy: under normal conditions, photovoltaic power and wind power are preferentially started to charge the battery, and the charging is stopped when the electric quantity reaches 95% and is recovered when the electric quantity is reduced to 50%; when wind-solar power generation is insufficient, the diesel engine is automatically started to charge the battery; when the electric quantity of the battery is reduced to 20% of an emergency threshold value, the diesel generator is automatically switched to directly supply power to the load; the system is further provided with a remote monitoring terminal. According to the invention, intelligent integration and automatic switching of multiple energy sources are realized, continuity and reliability of power supply are effectively guaranteed, and the system is especially suitable for application scenes such as ships and off-grid regions.