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Mining Science and Technology 2011年第2期21卷 159-164页

作者： Wang Cheng zhang Nong Li guichen zhang Nianchao School of Mines State Key Laboratory of Coal Resources and Safe Mining China University of Mining ＆ Technology Xuzhou 221008 China

Surrounding rock control in the overlying protective coal seam is a challenging topic for de-stressed mining of multi-seamed *** research findings on roadway control were used in the design of a physical model of a complex textured roof having a varying *** model was used to study roadway instability and collapse caused by dynamic *** results show that when the thickness of the roof exceeds the bolted depth the roadway security is least and the roof has the greatest possibility for *** simulations were also carried out to study stress redistribution before and after roadway excavation during underlying protective seam *** evolution of roadway displacement and fracture,as affected by support methods,has been well studied.A series of support principles and technologies for mining affected roadways has been proposed after demonstration of successful practical application in the Huainan *** principles and technologies are of extended value to deep coal mining support in China.

关键词： Multi-seams De-stressed mining Mining influenced roadway Control technology

Hybrid Control of Interconnected Diesel-generators for Marine Power Station

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Hybrid Control of Interconnected Diesel-generators for Marin...

2012年计算机应用与系统建模国际会议

作者： guichen zhang Jiqing He State Laboratory of Ocean Engineering Shanghai Jiao Tong University Dept. of Naval Architecture and Marine Engineering University of Strathclyde

The conventional control strategy of speed regulator in marine power paralleling system is respective control for interconnected diesel-generators. Taking into account the influence of the ship power paralleling system, a hybrid control model is presented in this paper. It is proved that both speed control and power regulation of the individual diesel-generator becomes possible. To this end, a novel control strategy is developed for the design of suitable model free adaptive (MFA) controller. Using the proposed model and the new control strategy, the application of speed-power coupled control and its effectiveness are extensively studied. The method is tested on COSCO (China Ocean Shipping (Group) Company) ship power system, which is mostly used as a teaching and training system for marine electrical engineers.

关键词： Marine power station Speed-power regulation Hybrid control MFA

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船舶电力推进直接转矩与转速复合控制

哈尔滨工程大学学报 2011年第5期32卷 541-545页

作者：张桂臣马捷上海交通大学海洋工程国家实验室上海200030

针对常规船舶电力推进控制器没有充分利用推进系统的动态特性这一问题,提出了包含速度、转矩、推力和功率特性的复合控制算法,建立了基于SIMOTION的船舶电力推进模拟设备,进行推进电机复合控制的试验研究.分析并比较了速度、转矩与功率... 详细信息

针对常规船舶电力推进控制器没有充分利用推进系统的动态特性这一问题,提出了包含速度、转矩、推力和功率特性的复合控制算法,建立了基于SIMOTION的船舶电力推进模拟设备,进行推进电机复合控制的试验研究.分析并比较了速度、转矩与功率3种控制策略.试验结果表明:利用直接转矩与转速复合控制,能获得精确和平滑的转速与转矩控制,最小的转速与转矩脉动,以致最小的机械磨损.

关键词：船舶电力推进技术螺旋桨特性复合控制 SIMOTION

An on-line adaptive hybrid PID autopilot of ship heading control using auto-tuning BP & RBF neurons

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An on-line adaptive hybrid PID autopilot of ship heading con...

第三十九届中国控制会议

作者： guichen zhang Mengwei Chen Run Lu Merchant Marine College Shanghai Maritime University

Ship navigation has the characteristics of nonlinearity, uncertainties and disturbances, which cause difficulties in ship heading control. It is presented a new hybrid PID(Proportional-Integral-Derivative) control technique for the ship navigation systems in this paper, the hybrid PID algorithm is composed of on-line adaptive adjustable parameters of the auto-tuning neurons based on BP(Back Propagation) and RBF(Radial Basic Function). The hybrid activation function is a modified hyperbolic tangent function, which is used as the auto-tuning NN(Neural Network), it is adjusted the magnitude and the shape of the Sigmoid and Gaussian function. The on-line adaptive hybrid PID autopilot adopts steepest descent adaptation laws and is tuned on-line;the operation results show the effectiveness of the proposed ship heading controller.

关键词： Ship heading control ship autopilot hybrid PID NN BP RBF

Synergistic Effect Characteristics of Multi-Point Mooring System

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Synergistic Effect Characteristics of Multi-Point Mooring Sy...

第35届中国过程控制会议

作者： Run Lu guichen zhang Mengwei Chen Merchant Marine College Shanghai Maritime University

Synergistic effect characteristics of Multi-Point Mooring System(MPMS) is a control difficulty for Floating Offshore Platform(FOP), which multivariable nonlinear systems with unknown dynamics is researched in this paper. Synergistic effect characteristics of MPMS is based on "Kantan 3" FOP. We designed the eight-points mooring collaborative positioning system, analyzed the characteristics of mooring anchor chains and FOP movement, as well as established the model of MPMS. This paper obtained the nonlinear function of mooring anchor chain tension and displacement, and the functional relationship between mooring platform recovery force and displacement. Finally, based on the data fitting of "Kantan3" and the motion simulation under the interference of wind and waves, the results show that the anchor chain is within 1/3 of the breaking tension range, and the mooring platform offset does not exceed 5% of the water depth, which meets the requirements of the classification society, and the superiority of the Synergistic effect characteristics of MPMS is demonstrated.

关键词： Floating Offshore Platform(FOP) Multi-Point Mooring System(MPMS) Synergistic Effect Characteristics

Study on Particle Filter Based Terrain Aided Navigation under the Ultra-low Resolution Map of the Arctic

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Study on Particle Filter Based Terrain Aided Navigation unde...

第三十九届中国控制会议

作者： Yanji Liu guichen zhang Run Lu Mengwei Chen Merchat Marine College Shanghai Maritime University

The ultra-low resolution underwater terrain map of the Arctic region reduces the positioning and navigation ability of the underwater vehicle relying on terrain aided navigation. To study the navigation ability of AUVs under the ultra-low resolution terrain map, a TAN（Terrain-Aided Navigation） system based on the classical PF（particle filter） is constructed. Based on the TAN system, the effects of various parameters on the filter navigation accuracy are studied. By comparative analysis,the range of reasonable parameter set is obtained. The simulation results show that the PF-TAN system has strong robustness, and by setting parameters of PF reasonably, the AUV will perform great ability on path tracking under an ultra-low resolution map.

关键词： Terrain Aided Navigation Particle Filter Coarse Terrain Map The Arctic

基于SIMOTION吊舱式电力推进的应用研究

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中国造船 2010年第4期51卷 45-50页

作者：张桂臣马捷上海交通大学海洋工程国家实验室上海200030

提出了基于SIMOTION的吊舱式电力推进系统。通过SIMOTION的硬件SINAMICS和软件SCOUT对吊舱式电力推进系统进行了组态与设计,应用直接转矩控制技术,获得精确和平滑的转速控制,最小的转矩脉动,以至最小的机械磨损。在实验室条件下,实现了... 详细信息

提出了基于SIMOTION的吊舱式电力推进系统。通过SIMOTION的硬件SINAMICS和软件SCOUT对吊舱式电力推进系统进行了组态与设计,应用直接转矩控制技术,获得精确和平滑的转速控制,最小的转矩脉动,以至最小的机械磨损。在实验室条件下,实现了基于SIMOTION的半潜船吊舱式电力推进半实物仿真。结果表明,SIMOTION吊舱式电力推进具有更高的可靠性和更好的动态性能。

关键词：船舶舰船性能电力推进直接转矩控制半实物仿真 SIMOTION

Marine Diesel-Generator Excitation Controller Based on Adaptive On-Line GA Tuning PID

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Marine Diesel-Generator Excitation Controller Based on Adapt...

第三十届中国控制会议

作者： zhang guichen State Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200030,P.R.China

＜正＞The aim of this research is the design of marine diesel-generator excitation controller which is capable of providing good and constant voltage control *** framework of the control design is based on adaptive on-line GA tuning PID which parameters are tuned using GA so as to perform optimally at one operating *** control scheme is comprised of AVR based on a standard voltage error signal derived from d-axis voltage and current variations,to mitigate the influence of disturbances on dynamic *** effectiveness of the proposed control algorithm is compared with the conventional PID AVR and found to be much better.

关键词： Marine Diesel-Generator Excitation Controller Avr Ga Pid

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基于长短期记忆网络的船舶主柴油机性能预测

内燃机学报 2021年第3期39卷 250-256页

作者：焦品博王海燕孙超张桂臣上海海事大学商船学院上海201306 中国船舶工业系统工程研究院北京100036

为预测船舶主柴油机的整体性能,提出一种结合马氏距离和长短期记忆网络(LSTM)的性能预测方法.选取20个常规热力参数作为柴油机的性能参数,引入马氏距离度量不同时刻柴油机的性能退化程度,并归一化为性能指标(PI)序列,以直观描述柴油机... 详细信息

为预测船舶主柴油机的整体性能,提出一种结合马氏距离和长短期记忆网络(LSTM)的性能预测方法.选取20个常规热力参数作为柴油机的性能参数,引入马氏距离度量不同时刻柴油机的性能退化程度,并归一化为性能指标(PI)序列,以直观描述柴油机的性能退化过程.建立三层LSTM网络模型,分别采用单步法和多步法预测性能指标序列,从而实现柴油机整体性能的趋势预测.以船用柴油机的性能预测实例进行方法验证,性能指标曲线可以直观反映柴油机的性能退化过程,符合柴油机的一般性能退化规律.单步预测的均方根误差(RMSE)和平均绝对误差(MAE)分别等于0.0166和0.0128,多步预测中60步预测的RMSE和MAE分别等于0.0363和0.0315,验证了该方法可用于对柴油机性能的短期波动预测与长期趋势预测.

关键词：船舶主柴油机长短期记忆网络马氏距离性能指标性能预测

不同电气特性下的PEMFC寿命衰减机理研究综述

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电源技术 2023年第4期47卷 434-438页

作者：张贵辰张杨周京华北方工业大学电气与控制工程学院北京100144

质子交换膜燃料电池(PEMFC)具有原料清洁可再生、噪声小和理论上使用效率高等优点。然而PEMFC的使用寿命与其经济效益密不可分,有很多因素会导致寿命衰减,因此对其寿命衰减的机理分析至关重要。从PEMFC结构出发分析了其各部分的受损原因... 详细信息

质子交换膜燃料电池(PEMFC)具有原料清洁可再生、噪声小和理论上使用效率高等优点。然而PEMFC的使用寿命与其经济效益密不可分,有很多因素会导致寿命衰减,因此对其寿命衰减的机理分析至关重要。从PEMFC结构出发分析了其各部分的受损原因,揭示了包括大电流密度、频繁启动和停止、负载频繁变化、开路、电流纹波等各种电气特性对PEMFC使用寿命影响的机理,从电气设计角度出发总结了相应的解决方案,所进行的研究综述对提高PEMFC的使用寿命和经济效益具有一定的理论价值与指导意义。

关键词：质子交换膜燃料电池寿命电气特性老化机理