Study on Small PV Intelligent Power Supply System

2014 ◽  
Vol 609-610 ◽  
pp. 1408-1411
Author(s):  
Zhong Xian Wang ◽  
Yong Geng Wei ◽  
Yong Li Bi

In the paper, the PV power supply control system is proposed to realize the uninterrupted power supply, including DC and AC supply. By the method of combining software with hardware, through the solar panel to the configured two pieces of battery could realize the function of fast and slow charging, and the supply battery is changed by testing the battery power to the load uninterrupted power supply. Moreover, when the output voltage of the solar panel is lower than the battery, the output voltage of solar panel is boosted by DC/DC circuit to make the solar panel at low pressures also to charge the battery, effectively solving the difficult solar energy in the weak power supply problem.

2014 ◽  
Vol 620 ◽  
pp. 193-199
Author(s):  
Zhong Xian Wang ◽  
Yong Geng Wei ◽  
Yi Lin Song

As the primary energy consumption and environmental pollution increasing seriously, green energy has been more and more got attention of researchers both at home and abroad, especially the study of solar occupies a large proportion in the development of green energy. The photovoltaic (PV) power supply system has many advantages, however, there are still problems, e.g. low voltage, low power, poor ability to resist disturbance. Around these problems, the paper designed a PV power supply control system could realize the uninterrupted power supply, including DC and AC supply. By the method of combining software with hardware, through the solar panel to the configured two pieces of battery could realize the function of fast and float charging, and the supply battery is changed by testing the battery power to load uninterrupted power supply. Moreover, when the output voltage of the solar panel is lower than the battery, the output voltage of solar panel is boosted by DC/DC circuit to make the solar panel at low pressures also to charge the battery, effectively solving the difficult solar energy in the weak power supply problem. Finally, the design of PV power supply control system not only could realize DC supply, and also AC power supply by SPWM method, which has good effect of power supply.


2012 ◽  
Vol 170 (5-6) ◽  
pp. 481-487 ◽  
Author(s):  
T. H. Ding ◽  
Y. L. Lv ◽  
J. X. Tang ◽  
X. Chen ◽  
X. Y. Chen ◽  
...  

2013 ◽  
Vol 655-657 ◽  
pp. 1609-1613
Author(s):  
Yu Hao Zhang

The dual-loop control method, in which inner-loop is the current and outer-loop is the voltage, is proposed to design a high-efficient precise numerical control parallel power supply system, it operates at input voltage of 24V, output voltage of 6-12V and output current of 0-4A. The current ratio of the parallel circuits can be set arbitrarily. Precise adjustment of output current and improvement of efficiency are realized by width modulation and synchronous buck-topology switching power supply, the output current error is smaller than 20mA and DC-DC conversion efficiency is up to 90%; to make output voltage error smaller than 30 mV and the current-sharing error smaller than 0.5%, digital calibration technology and PID control algorithm are used. In addition, this system is equipped with the function of overload protection, double-source redundant heat standby and turn-off, etc.


2021 ◽  
pp. 54-66
Author(s):  
Aleksey Trofimov ◽  
◽  
Sergej Postnikov ◽  

This article discusses the possibility of using a multicopter type aircraft as a transport vehicle in urban environments. This type of transport is the most promising in the near future, given the constantly growing number of traffic jams in large cities. The assessment of this aircraft is presented, taking into account the reliability requirements specified in the regulatory documents. The analysis of the aviation regulations requirements in terms of the aircraft systems reliability was carried out. Also the paper presents six options for the multicopter layout with a different number of propellers, taking into account the propeller control system, power supply system and control system. Other onboard systems are not considered, since their failures do not lead to an aircraft crash. An assessment of these options, taking into account the multicopter most critical onboard equipment layout according to reliability criterion by budgeting the requirements for one thrust generation channel, is given. Fault trees and failure situations that lead to a disastrous situation are also presented for each multicopter layout separately, as well as proposals for the number of independent channels for the power supply system and control system. Based on the set quantitative requirements for the occurrence of a catastrophic situation for the main on-board equipment and various layout options, taking into account the number of propellers and proposals for their architecture, power supply systems and control systems the most promising multicopter architecture options are determined. They meet the requirements for failure safety for a catastrophic situation.


2019 ◽  
pp. 99-107
Author(s):  
Леонід Васильович Литовченко ◽  
Володимир Петрови Колесник ◽  
Олег Миколайович Чугай ◽  
Андрій Олександрович Бояркін ◽  
Денис Віталійович Слюсар ◽  
...  

It's shown the necessity to use functional coatings in engineering, which can be formed in many layers and contain a number of components what based on the analysis of literature data about ways to ensure the required resource of machine parts and mechanisms. Existing technologies and the corresponding equipment require the prefabricating of the alloys which the coatings are formed. This significantly limits the control of the coatings' composition. It's shown the advantage of ion-plasma technologies developed at National Aerospace University "Kharkiv Aviation Institute" over the existing technologies. In particular, due to the spraying of a large number of cathodes-targets, these technologies allow the formation of multicomponent coatings of almost any composition. When implementing ion-plasma technology for the formation of coatings, a decisive role plays the generator of the flow of particles of the coating material. It has been proposed to supply voltage to each generator element through a chain of resistors, the total resistance of which is regulated by the control system of the corresponding program to improve the power supply system of such a generator. Such an approach to the improvement of the power supply system of the technological generator of the coating material is implemented in the developed laboratory experimental-industrial process plant for the formation of a model coating of tungsten carbide. It was considered two possible schemes for creating resistive chains with regulated resistance. It was selected the scheme, which consists of a smaller number of elements. The important role of any resistive chain in the operation of the technological generator control system has been determined. It was proposed the optimal choice of the nominal values of the resistors included in the chain. The optimal choice of the nominal values of the resistors included in the chain has been proposed. The conducted analysis of experimental data carried out by the authors suggests that each such chain should have individual features, in particular, the boundaries and the step of resistance, the maximum power of heat losses. These and other parameters are usually determined experimentally.


2019 ◽  
Vol 9 (19) ◽  
pp. 3953 ◽  
Author(s):  
Yan Chen ◽  
Chunyan Ma ◽  
Xiangnan Hou ◽  
Yinke Dou ◽  
Rui Chen

Based on the preliminary study of the distribution of wind and light resources in the Zhongshan Station of Antarctica, and the conclusion that the scenery and resources of the station area are sufficient and complementary, this paper proposes to adapt to the power supply problem of the aeroponic, stereoscopic cultivation device in the Controlled Micro-environment applied to the polar regions. The overall architecture of the power supply system is designed. Based on the STC8A8K64S4A12 single-chip microcomputer, the hardware circuit and software program of the wind and solar hybrid power supply system controller are also designed. Finally, the debugging experiment is carried out.


2012 ◽  
Vol 203 ◽  
pp. 202-206
Author(s):  
Hang Xu ◽  
Tao Zou

The airborne electromechanical system is essential to ensure the aircraft flight and it is most complex system in the aircraft, the aircraft intelligent power supply system and the aircraft electrical system synthesis control is the basis of airborne integrated electromechanical system. The paper gives up the hardware and software compositions and operation features of the aircraft electrical synthesis control system under based on the current situation of science and technology. It expounds the function and structure of PSP, ELMC and RT, the demands of BIT technique and fault tolerant design of electrical power system. It refers design scheme of electrical synthesis control system according to developing trends of aircraft electrical system.


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