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21st IEEE International Symposium on Industrial Electronics (ISIE)

作者： Zhu, Junjie Nie, Ziling Ma, Weiming Nie, Shixiong National Key Laboratory for Vessel Integrated Power System Technology China

ISBN: (纸本)9781467301589

Due to total harmonic distortion and the time delay of the digital controller in the condition of a single-phase 400 Hz power supply, the traditional proportional-integral-differential controller cannot track the sinusoidal waveforms with zero static error. To improve the performance, the deadbeat control and the proportional-resonant control have been analyzed and contrasted in this paper. The results show that deadbeat control has rapid response but sensitivity to the accuracy of the model and parameters. On this basis, a Dual-Loop Proportional-Resonant control is proposed, which is exercised with the high switching frequency to provide sufficient control bandwidth to reduce the 3rd, 5th and 7th order harmonic. Further, the experiments have been performed on a single-phase 400 Hz power supply prototype. The results show that the Dual-Loop Proportional-Resonant control feeding linear/nonlinear and disturbance loads are satisfactory.

关键词： total harmonic distortion deadbeat control proportional-resonant control Dual-loop Proportional-Resonant control

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Sensorless Control of Permanent Magnet Synchronous Linear Motor Based on Improved Second-Order Generalized Integrators 5

Sensorless Control of Permanent Magnet Synchronous Linear Mo...

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5th Asia Conference on Energy and Electrical Engineering, ACEEE 2022

作者： Kong, Dekang Li, Weichao Han, Jinyang Deng, Chen Yan, Ming Zhou, Liang National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering Wuhan China National Key Laboratory of Science and Technology on Vessel Integrated Power System Vessel Integrated Power System Wuhan China

ISBN: (数字)9781665499330

ISBN: (纸本)9781665499330

Band-pass filter (BPF) and low-pass filter (LPF) are generally used to extract the position error signal of permanent magnet synchronous linear motor (PMSLM) in the traditional high-frequency (HF) pulsating voltage injection method. However, filters will generate system delay and affect the dynamic performance of the system. Therefore, this paper proposes to combine the generalized second-order integrator (SOGI) and notch filter (NF) to form an improved generalized second-order integrator (SOGI-NF). This structure effectively reduces the time delay caused by signal processing and shortens the operation time by replacing the BPF. Meanwhile, compared with the traditional SOGI, it has stronger harmonic attenuation ability, wider bandwidth and better dynamic performance. Finally, the feasibility and superiority of the position error signal extraction strategy based on the improved second-order generalized integrator are verified by simulation. © 2022 IEEE.

关键词： Bandpass filters

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A capture probability analytic model for the electromagnetic launched anti-torpedo torpedo

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Defence technology（防务技术） 2022年第2期18卷 261-270页

作者： Bao-qi Wu Xiao-cun Guan Shao-hua Guan Jing-bin Shi National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of EngineeringWuhan430033China Jiangsu Automation Research Institute Lianyungang 222006China

With the unique characteristics,electromagnetic launch technology is applicable to launch shipborne anti-torpedo torpedo(ATT).This paper aims to establish an analytic model to pre-evaluate the capture probability of the electromagnetic launched *** mathematics model of the multi-stage coilgun and the trajectory of the ATT is established for *** influence factors of the capture probability are analyzed respectively,including the entry point dispersion of the ATT and the position dispersion of the incoming *** the advanced angle interception mode,the ATT search model is obtained according to the positional relationship,and the course error is synthetically calculated according to the differentiation of implicit function.A geometric method to calculate the integral boundaries of the probability density function is proposed,based on the relative motion of the ATT and the incoming *** verify the proposed integral model,the digital simulation and comparison is *** results reveal that the variation trends and the calculation value of the proposed analytic model are coincident with the statistic results from Monte Carlo *** implications of the results regarding the analytic model are discussed.

关键词： Electromagnetic launch Anti-torpedo torpedo Analytic model Dispersion variance Integral boundary

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Interception probability simulation and analysis of salvo of two electromagnetic coil launched anti-torpedo torpedoes

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Defence technology（防务技术） 2022年第11期18卷 2065-2073页

作者： Bao-qi Wu Guang-sen Wang Xiao-cun Guan Biao Wu National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of EngineeringWuhan430033China Jiangsu Automation Research Institute Lianyungang222006China

Electromagnetic coil launch is an important branch of electromagnetic launch(EML)technology,which is suitable for launching anti-torpedo torpedo(ATT).This paper focuses on the EML parameters and the interception probability of the EML two ATTs *** on the launching model of a multi-stage coil launcher,the trajectory model of the ATT and the attacking torpedo,a calculation method for the EML two ATTs salvo parameters is proposed,with the conditions of capture and interception given *** adaptive particle swarm optimization(APSO)algorithm is proposed to calculate the optimal launching parameters,by designing the adaptive inertia weight and time-varying study *** to the analysis of the simulation with Monte Carlo method,EML will improve the interception probability effectively,and the interception probability is affected by the launching *** results demonstrate good performance of the proposed APSO in calculating EML parameters for the two ATTs salvo in certain combat *** of these results are particular regarding the command and decision in the anti-torpedo combat.

关键词： Interception probability Electromagnetic coil launch Anti-torpedo torpedo Adaptive PSO

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Modeling of Electronic Attenuator in Adaptive Interference Cancellation systems 5

Modeling of Electronic Attenuator in Adaptive Interference C...

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The 5th International Symposium on Electromagnetic Compatibility

作者： Yang Li Fangmin He Jin Meng Yi Li Qing Wang National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering

ISBN: (纸本)9781509051861;9781509051854

In the design of adaptive interference cancellation systems(AICSs),the simulation model plays an important ***,accurate modeling of the response of electronic attenuator is crucial but is usually a difficult task since it relies on the exact fitting of the response of real PIN *** this paper,the PIN diode response characteristics are firstly measured with ***,the key parameters of the model are extracted by fitting the experiment data with the output of the *** feasibility of this approach is examined with three levels of experiments and simulations,i.e.,the response of the PIN diode and the electronic attenuator,as well as the performance of the *** results show that our proposed method is feasible and effective.

关键词： PIN diode electronic attenuator modeling interference cancellation

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Research on current decoupling control of six-phase permanent magnet linear synchronous motor for electromagnetic launch

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International Journal of Mechanical system Dynamics 2021年第2期1卷 267-277页

作者： Xingfa Sun Jin Xu Junjie Zhu Department of Electrical Engineering National Key Laboratory of Science and Technology on Vessel Integrated Power SystemNaval University of EngineeringWuhanChina

Six-phase permanent magnet linear synchronous motor(PMLSM)for electromagnetic launch(EML)system presents the characteristics of a high order,nonlinearity,multivariable,strong coupling,and nonperiodic transient operation in the synchronous rotating coordinate system,posing a great challenge to the dynamic response ability of the current *** research on current decoupling control(CDC)mainly focuses on cross decoupling within a three-phase system,even though there are neither decoupling methods for multiphase systems nor effective evaluation criteria for the decoupling and dynamic response *** this perspective,this paper first presents an equivalent reduced-order complex-matrix dynamic mathematical model of six-phase PMLSM and analyze its transient coupling characteristics during the process of ***,the CDC methods of six-phase PMLSM based on direct compensation and matrix diagonalization principles are realized,respectively,to accomplish the cross decoupling and back electromotive force decoupling within and between different three-phase ***,an all-round method is proposed,for the first time,to evaluate the decoupling performances and dynamic response performances of different CDC strategies for six-phase *** superiority of deviation decoupling regulator in decoupling performance and robustness are verified based on high-speed EML experimental platform of six-phase PMLSM.

关键词： complex-matrix mathematical model current decoupling control electromagnetic launch strong transient

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Control Strategy for Inverter Parallel and Parallel with Synchronous Generator Based on Virtual Synchronous Generator Theory 36

Control Strategy for Inverter Parallel and Parallel with Syn...

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第36届中国控制会议

作者： Kewen Lin Fei Xiao Guisheng Jie Changwu Hou Ruitian Wang National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering

ISBN: (纸本)9781538629185

With the development of electrical control technology and the need of environmental protection,the marine shaft generating system based on PWM technology is developed and *** shaft generator system,inverters parallel and parallel of inverter and diesel generator are key ***,the paper proposes a control strategy based on virtual synchronous generator theory that simulates the large inertia and the output impedance characteristics of the synchronous generator to solve these *** this paper,the mathematical model of the inverter and the overall control block diagram of the inverter are introduced and the control model of the virtual synchronous generator is *** Simulation using Matlab and real-time simulation system of the parallel operation of inverters and parallel operation of inverter and diesel generator are carried *** simulation results show that the control strategy is feasible.

关键词： marine power system inverter double-loop control virtual synchronous generator real-time simulation

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IGBT Failure mechanism and boundary analysis under large current and high temperature turn-off 3

IGBT Failure mechanism and boundary analysis under large cur...

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2020 3rd International Symposium on power Electronics and Control Engineering, ISPECE 2020

作者： Ma, Xiao Huang, Yongle Luo, Yifei National Key Laboratory of Science and Technology on Vessel Integrated Power System China

Considering overload working conditions in electromagnetic emission, the paper presents a simulation of IGBT turn-off under large current and high temperature. Numerous simulation result is received under a specific test circuit. Boundary conditions for temperature, current and starry inductance are obtained under a set of temperature criterion. Further analysis proves that after temperature reaches the criterion, high current density path swiftly extends from local area to a vertical current path throughout the cells. This method for IGBT theoretical boundary is useful for similar projects or working conditions. © Published under licence by IOP Publishing Ltd.

关键词： Insulated gate bipolar transistors (IGBT)

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Self-Tuning Control of Large-Capacity Friction Brake Based on RBF Neural Network 2

Self-Tuning Control of Large-Capacity Friction Brake Based o...

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2017 IEEE 2nd Information technology, Networking, Electronic and Automation Control Conference (ITNEC 2017)

作者： LI Pengfei WANG Guangsen LIU Yong OUYANG Bin ZHANG Xiangming National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval Univ.of Engineering

ISBN: (纸本)9781509064151;9781509064144

A large-capacity friction brake has been analyzed in this paper. The nonlinear model has been given and its working principle has been described quite clear. In order to realize the precise control of the large-capacity friction brake, a PID control method based on Kalman filter and the dynamic identification of radial basis function neural network is *** extended Kalman filter algorithm can reconstruct the feedback signal of the whole frequency interference, which can be used for neural network identification and PID control *** algorithm can handle hostile work environment, and its antiinterference is good. The training time of the radial basis function network algorithm is less than the back-propagation algorithm's. In short, using this algorithm, it is easy to realize online identification, what's more, it is easier to approach the local characteristics of the controlled object, and the identified model is more precise. Compared with traditional control methods, the control method proposed in this paper can deal with the non-linear and slow time-varying characteristics, and it has been verified through the prototype test, which has the guiding significance for the precise control of the large-capacity friction brake.

关键词： friction brake radial basis function extend Kalman filter self-tuning system identification

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Optimal Design of a High-power Friction Brake Based on Improved Genetic Algorithm 36

Optimal Design of a High-power Friction Brake Based on Impro...

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第36届中国控制会议

作者： LI Pengfei WANG Guangsen ZHANG Xiangming MA Mingzhong National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval Univ. of Engineering

ISBN: (纸本)9781538629185

For the emergency braking of a large-capacity inertia flywheel energy storage system, this paper refers to a rapid braking scheme based on the friction brake. However, its difficulty lies in the design of a high power brake, which includes temperature, volume, power and so on. The present multi-objective optimization algorithm is not available for engineers due to its complicated design, much difficulty in implementation, and time-consuming calculation. Therefore, this paper has proposed an improved genetic algorithm to solve multiple constraints, which can be changed into a problem of common constraint. Moreover the algorithm is convenient for designers because of its ideal convergence, universality and flexibility. The prototype testing proves the braking scheme of the large-capacity flywheel energy storage system to be feasible and the optimized algorithm for the friction brake to be effective, which can play a certain guiding role in engineering practice.

关键词： friction brake genetic algorithm multi-objective optimization penalty function

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