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CN106477063A
The present invention provides a kind of multipurpose dynamic energy storage type carrier-based aircraft ejector system and its using method, including launching module, playback module and external power-equipment, ejection module is identical with playback modular structure, playback module is coordinated with more than one ejection module to be
Analysis of electromagnetic characteristics of a new electromagnetic
Electromagnetic ejection technology is a new launching technology which uses electromagnetic force to accelerate the projectile to ultra-high sound speed. This technology can break through the speed limit of traditional gunpowder launching, and realize the accurate control of exit speed by controlling the excitation pulse current. Four track
Model Predictive Control for Electromagnetic Launcher of UAV
In order to reduce the loss and improve the efficiency of UAV electromagnetic ejection system, an FCS-MPC method is proposed to manage the
Experimental study of a novel superconducting energy conversion/storage
Existing energy storage technologies such as flywheel and super-capacitor for vehicle regenerative braking have represented a possible alternative to electrochemical batteries. However, these energy storage devices should be used combined with generator/motor to realize the conversion between kinetic energy and electric energy.
Effectiveness Evaluation of Aircraft Electromagnetic Launch
Electromagnetic emission technology refers to the technology of accelerating an object to a certain speed through the Lorentz force and launching it out. With the deepening of
Numerical analysis of 40 MW HTS motor electromagnetic
Hypothesis. Given the complex structure and symmetry of the considered motor, a 2D electromagnetic model, corresponding only to a 1/16 of the machine circumference sector, is implemented in ANSYS
Analysis of Electromagnetic Characteristics of an Integrated
Abstract: Aiming at the inherent disadvantages of large footprint, complex structure and heavy weight of the linear catapult device, this article proposes a new type of electromagnetic launch and arresting gear with a single axis integrated steel cable drive. The gear consists of the permanent magnet energy storage motor, the eddy current
Analysis of Electromagnetic Characteristics of an Integrated
By comparing the results with 3-D finite element calculations, the electromagnetic characteristics of the eddy current clutch and eddy current brake are
Research on Vehicle-Mounted Electromagnetic Ejection Remote
University of Science and T echnology proposed a 105 mm. vehicle-mounted multitube fire extinguishing gun device, which uses the mortar firing method to shoot fire extin-. guishing shells at
CN111332488B
The invention discloses an electromagnetic ejection system, which comprises a flywheel energy storage device, a power electronic conversion device, a transmission device and a control system, wherein the flywheel energy storage device is connected with the power electronic conversion device; the transmission device is a double-long primary steel
Design and Thrust Output Analysis of Linear Induction Motor
Electromagnetic ejection technology is an accelerated driving method that is developing rapidly at present. Electromagnetic ejection uses a linear motor as a By controlling the power supply current, the motor energy output is controlled, and then the light or heavy fixed-wing UAV is controlled to complete the accelerated ejec- tion take
Research on Control Strategy of the Electromagnetic Launch
According to the different launching power energy, ejection takeoff can be divided into elastic ejection, pneumatic ejection, electromagnetic boost launch and so on. and the power module converts the electric energy of the energy storage module into the ac power required by the linear motor drive according to the preset program of the
Application potential of a new kind of superconducting energy storage
Fig. 1 shows the configuration of the energy storage device we proposed originally [17], [18], [19].According to the principle, when the magnet is moved leftward along the axis from the position A (initial position) to the position o (geometric center of the coil), the mechanical energy is converted into electromagnetic energy stored in the coil.
Research and Analysis of Primary Energy System Technology for
Abstract. As an important compontent of the electromagnetic launch system, the primary power system largly determines the research progress and application potential of the Electromagnetic Emission technology. Based on the combined power system of Lithium battery and pulse capacitor, the Lithium battery energy storage and
Design and Thrust Output Analysis of Linear Induction Motor
For the electromagnetic ejection of UAVs, there are mainly two methods: coil ejection and linear motor. Compared with the two methods, the linear induction motor is used as the electromagnetic drive device, and the electromagnetic thrust output can be changed by changing the design parameters, and the thrust output
The summary of missile electromagnetic catapult technology
missile electromagnetic catapult system mainly consists of three p arts: energy storage system, control system and linear motor. Linear motor is the core of electromagnetic ejection system, which
U.S. Navy''s Electromagnetic Launch Technology Surges
The EMALS system, in development as far back as 2000 with General Atomics Electromagnetic Systems, consists of a series of transformers and rectifiers designed to convert and store electrical power
Design and Optimization of a High Performance Yokeless and
The motor has the advantages of light weight, modular production, low loss, and short axial magnetic circuit, which can further improve the power density, but its application in flywheel energy storage is still less. In this paper, a 50 kW flywheel energy storage YASA motor is designed.
Development of a New Microgravity Experiment Facility with
Physical verification and simulation tests are carried out on key technologies such as principle of electromagnetic launch, linear motor control, and electromagnetic release, which prove the effectiveness of the technical feasibility. The power network energy can be stored in supercapacitors by energy storage conversion
What''s the use of "electromagnetic skid"?
Electromagnetic force can not only be used for electromagnetic ejection of ships, but also for orbital propulsion, and even for aerospace technology In the final analysis, human civilization needs "force" and "energy" to achieve great cause. creatively proposed the energy storage motor scheme that integrates the tractor, exciter
Calculation of motor electromagnetic field for flywheel energy storage
Request PDF | On Aug 1, 2017, Lin Li and others published Calculation of motor electromagnetic field for flywheel energy storage system in discharge mode | Find, read and cite all the research you
Linear Motor Aircraft Launch System Takes the Steam Out of
The Energy Storage motor-generator rotors (also discussed above); The Energy Distribution System, which includes the cables, disconnects, and terminations needed to deliver the energy from the power-conversion system to the launch motor. The list of technology advances and innovations needed to build a system such as EMALS is
Quantitative energy storage and ejection release in
Mechanical energy storage ejection is a launch method with an indispensable position in military applications. This technology has been used for weapon launches, including gunpowder launches, pneumatic ejection, electromagnetic ejection and many other forms [22], [23]. However, designing and manufacturing a safe and
Research on Torque Control Current Injection Method of PMSM in
In the numerical calculation process of electromagnetic-thermal bidirectional coupling of permanent magnet synchronous motor (PMSM), as the temperature increases, the residual magnetism and coercive force of the PM gradually decrease, which leads to weakening of the magnetic field and further leads to electromagnetic (EM) torque decreasing in
Research on Segmented Power Supply Technology of Microgravity
The working principle of the electromagnetic ejection micrograv ity experimental d evice is: the energy storage conversion system of the device stores the power grid energy into the super
Numerical analysis of 40 MW HTS motor electromagnetic
We present an electromagnetic characteristics numerical analysis of 40 MW, 120 rpm, HTS synchronous motor which is a semi-superconducting motor: in fact,
The summary of missile electromagnetic catapult
missile electromagnetic catapult system mainly consists of three p arts: energy storage system, control system and linear motor. Linear motor is the core of electromagnetic ejection system, which
Research on Control Strategy of the Electromagnetic Launch
UAV electromagnetic ejection system Electromagnetic catapult Drive power supply Portable controller Linear motor Winding switcher Locking release mechanism The buffer device Servo-control mechan ism Electroma gnetic launcher Control module Power module Energy storage module pulley Charge and discharge combinati on Power supply
Analysis of Source-Load Coupling Characteristics and Stability in
Introduction. The advancement of electric energy storage and conversion technology, as well as the widespread use of radar, electromagnetic catapults, electromagnetic guns, and other high-power pulse weapon systems in national defense and military applications, has prompted researchers to investigate how to provide energy
How Things Work: Electromagnetic Catapults | Smithsonian
Shipboard electromagnetic catapults will be based on larger linear induction motors, made up of three main parts: two 300-foot-long stationary beams, or stators, spaced a couple
Quantitative energy storage and ejection release in superelastic
This finding lays a foundation for designing next-generation energy storage ejection devices, such as unmanned aircraft, ejection seats on aircraft, and long
Suppression of low-frequency vibration for rotor-bearing system
Quantitative energy storage and ejection release in superelastic shape memory alloy wire. The strength study of the flywheel is important to the flywheel energy storage. The motor and bearing are the key challenges for the high-speed flywheel spin test device in vacuum. Electromagnetic dampers seem a valid alternative to
Electromagnetic Performance Analysis of PM Linear Synchronous Motor
PM linear motors have the advantages of high thrust density, high efficiency, and good dynamic performance, so they have been widely applied in industrial automation, manufacturing equipment, and new energy fields [1,2,3,4,5].The constantly expanding application fields have put forward higher performance for linear motors, so new
Performance Analysis and PSO Optimization of BPMLM for Electromagnetic
As an emerging launch technology, electromagnetic launch (EML) has been widely used in many domains, such as aircraft launch, missile launch, space satellite launch and high-speed vehicle crash test etc. [1,2,3].EML has obvious advantages in capability and performance compared with gunpowder and gas ejection, including high
Effectiveness Evaluation of Aircraft Electromagnetic Launch
Energy storage and pulse power system energy flow status signal flow control signal flow space vehicle Annotation: C11 Figure 1 position of electromagnetic ejection system (5) Pulse power supply subsystem mainly solves the problem of high power and fast discharge, and provides the required current for aircraft electromagnetic transmitter.
Calculation of motor electromagnetic field for flywheel energy storage
A Flywheel Energy Storage System (FESS) can solve the problem of randomness and fluctuation of new energy power generation. The flywheel energy storage as a DC power supply, the primary guarantee is to maintain the stability of output voltage in discharge mode, which will cause the variation of motor internal magnetic field. In this paper, taking
Structure Optimization of Permanent Magnet Linear
The structure of the permanent magnet linear ejection motor with moving armature is optimized. By designing the self-alignment guide structure, the air gap can automatically tend to be
Performance Analysis and PSO Optimization of BPMLM for Electromagnetic
EML has obvious advantages in capability and performance compared with gunpowder and gas ejection, including high concealment, precise and controllable thrust, wide range of generality, and short acceleration distance. The crucial technologies of EML lie in energy storage, high-power power regulation and linear motor and launch control