Maximum power point tracking(MPPT) technique is used in photovoltaic(PV) power generation system to assume the maximum power point(MPP) no matter how the PV panel temperature and irradiation conditions *** plays a dec...
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ISBN:
(纸本)9781509046584
Maximum power point tracking(MPPT) technique is used in photovoltaic(PV) power generation system to assume the maximum power point(MPP) no matter how the PV panel temperature and irradiation conditions *** plays a decisive role in PV power generation ***,this paper introduces a modified optimal voltage control(OVC) method coupled with active disturbance rejection control(ADRC) *** proposed method focuses on parameter optimization corresponding to variable panel temperature and irradiation *** results,comparing with OVC method,show that the proposed method improves power tracking speed and efficiency of energy conversion ***,through the simulation by MATLAB/SIMULINK platform,we verify the feasibility and effectiveness of the proposed method.
Energy router is the core equipment of the energy internet with the function that control of energy and information, satisfy different requirements and management through network. The key of energy router is solid sta...
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ISBN:
(纸本)9781509046584
Energy router is the core equipment of the energy internet with the function that control of energy and information, satisfy different requirements and management through network. The key of energy router is solid state transformer(SST) and the control of different forms of energy. Ultimately, basic design considerations and components of the E-router in terms of power conversions, energy management and communication are summarized in details.
Combining with the characteristics of smart distribution grid,this paper expounded the architecture,control strategy and key technology of self-healing control in smart distribution grid and proposed the "three-l...
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ISBN:
(纸本)9781538629185
Combining with the characteristics of smart distribution grid,this paper expounded the architecture,control strategy and key technology of self-healing control in smart distribution grid and proposed the "three-layer with seven-unit" architecture and the option method of control *** with the characteristics of smart distribution grid containing distributed power,this paper introduced the key technology of self-healing control,so as to make up the defects of current self-healing control that the smart grid features were not fully considered at present,which provided the theoretical basis for the construction of self-healing control.
In order to ensure the speed and accuracy of positioning gestures during the human-computer interaction,YOLO v2 network with the best detection results in the target detection area was adopted in 2016 to generate the ...
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In order to ensure the speed and accuracy of positioning gestures during the human-computer interaction,YOLO v2 network with the best detection results in the target detection area was adopted in 2016 to generate the target detection data sets of the target areas with obviously different *** YOLO v2 network is improved by the clustering of target box latitude,the pre-training of classification network,the screening training of multi-scale detection and the screening rules of the change candidate box to make it better adapt to the positioning *** can locate the shooting gesture images acquired by the monocular camera in real time to the target *** results show that the proposed method is effective and the average accuracy of the detection network in the target detection tasks of the captured images is increased to 79.5%.
This paper introduces the electrical energy storage ***,it briefly expounds the significance and value of electrical energy storage technology research,analyzes the role of electrical energy storage technology,and bri...
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ISBN:
(纸本)9781538629185
This paper introduces the electrical energy storage ***,it briefly expounds the significance and value of electrical energy storage technology research,analyzes the role of electrical energy storage technology,and briefly introducts electrical energy storage *** focuses on the research status of energy storage technology in micro grid,distributed generation,new energy power generation,smart grid,energy Internet and electric ***,considering the characteristics and requirements of the micro grid,distributed generation,new energy power generation,smart grid,energy Internet and electric vehicles,both some existing problems and the future development trend of electrical energy storage technology are presented..
In the speed control of permanent magnet synchronous motor(PMSM),the traditional exponential reaching law has the contradiction of fast response and heavy *** sliding mode controller based on a novel hybrid reaching l...
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In the speed control of permanent magnet synchronous motor(PMSM),the traditional exponential reaching law has the contradiction of fast response and heavy *** sliding mode controller based on a novel hybrid reaching law was proposed to solve these *** novel reaching law adds power reaching law to the traditional exponential reaching law,it can solve the problem that the reaching speed of power law is slow when system is far away from the sliding surface and solve the problem of the chattering of exponential reaching law in the near sliding *** system state variables has good effect in inhibiting the chattering problem caused by the introduction of index *** on the novel hybrid reaching law,the sliding mode speed controller was designed,and Lyapunov stability theory was used to analyze the stability of the *** simulation and experiment is compared with the traditional exponential reaching law speed *** results show that the system with this designed controller can achieve faster speed tracking,and has the advantages of high stability and strong resistance to chattering.
In order to solve the friction and external interference on the spherical motor performance, reduce the dynamics model modeling *** on the structural characteristics of the spherical motor, the dynamic model of spheri...
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In order to solve the friction and external interference on the spherical motor performance, reduce the dynamics model modeling *** on the structural characteristics of the spherical motor, the dynamic model of spherical motor is established by using xyz the Euler angle and the Lagrange equation, on this basis, the neural network approximation model is designed to achieve precise control of the spherical motor. The simulation results show that the adaptive control algorithm based on neural network can effectively improve the anti-interference ability of spherical motor, and in the case of large modeling error, it can still guarantee the motion accuracy of the spherical motor.
With the development of the artificial intelligence technology,mobile robots have been widely applied to various fields,such as human-computer interaction and *** localization and mapping is a key to realize the intel...
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With the development of the artificial intelligence technology,mobile robots have been widely applied to various fields,such as human-computer interaction and *** localization and mapping is a key to realize the intelligent *** on the previous research fruits,this paper listed a construction method using lidar,and introduced the SLAM algorithm of the unscented particle filter to make the constructed maps more *** this method,the lidar is first used to scan the indoor environment,and then the collected data is adopted to fit the indoor ***,the accurate information is shown in the experimental section.
Due to the robots are limited in size and cannot be attached to more functions, which caused the practicality of the robot being reduced. In order to achieve the information collection and multipoint drug delivery in ...
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Due to the robots are limited in size and cannot be attached to more functions, which caused the practicality of the robot being reduced. In order to achieve the information collection and multipoint drug delivery in the intestinal tract. This paper proposed the novel multi-modular robot driven by the external magnetic field. This robot system has two robots, namely the master robot and the auxiliary robot. The control system of the robot including the driven system, video acquisition and modular docking and separation of the robots. We realized the separation of the capsule robot by the difference of the cut-off frequency. The axial magnetized magnet is put into the robot, and when the robot is close, the two robots can combine. And the motion of the two at low frequency is consistent, which can realize the synchronous motion. Finally, the two robots can realize active locomotion using a three-axis Helmholtz coils system. The developed capsule robot can be used to improve the capsule robot system and help people do experiments in vivo in the future.
The classical control algorithm for the control of quadrotor UAV in complex environments is undesirable,takes long for adjusting,response overshoot is large even *** is difficult to ensure a stable *** the adaptive co...
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ISBN:
(纸本)9781509046584
The classical control algorithm for the control of quadrotor UAV in complex environments is undesirable,takes long for adjusting,response overshoot is large even *** is difficult to ensure a stable *** the adaptive control can quickly adjust the object to the equilibrium *** the problem that some parameter of a quadrotor may be changed in some complex or external jamming flight environment,herein an adaptive control scheme with feed-forward and feedback control structure is *** can effectively suppress and eliminate the influence of the change of inertia,and improve the system's anti-interference ability and self-adjustment *** testing results show the effectiveness of the control method,and achieve good control performance when the inertia changes.
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