The Charge and Discharge Scheme of the Battery in the Solar Lighting System

2012 ◽  
Vol 588-589 ◽  
pp. 591-594 ◽  
Author(s):  
Xia Li

This article gives the description of the scheme of solar lighting control system. Solar energy is accepted commonly as a green energy because of its unique advantages. In the strong support of the government, the Photovoltaic (PV) generation system gains a rapid development. The stand-alone and grid-connected PV generation systems will be the trend among PV applications. Based on the solar lighting control system, the scheme includes using intelligent control to complete charging and discharging to prevent the battery from being over-charged and over-discharged. Meanwhile the constant current technology is used to drive LED, and the integrated circuit technology is used to implement the solar energy lighting optically controlled self extinguishing.

2018 ◽  
Vol 67 ◽  
pp. 04011
Author(s):  
Sunaryo Sunaryo ◽  
Adri Wirawan Ramadhani

Indonesia has more than 17,000 islands and has plenty of beautiful beaches and underwater spots which have great potential for maritime tourism. Tourism was ranked 3rd on Indonesia's foreign income and plays an important role for the country’s ecomony. Despite having potential advantages, the government has not yet maximized its efforts to develop the attractiveness of its maritime tourism. Beside the beautiful spots Indonesia is also blessed with all year long sun shine, which could be tapped as renewable and green energy as substitution to fossil fuel. Refer to these great advantages of natural resources the research was aimed to support the government’s program in developing its maritime tourism and to promote the use of green and renewable energy by designing a solar-powered tourism recreational boat which has 12 meters of length. The paper is focused on the design of solar energy and its electrical system, which includes conversion of solar energy to electrical energy and store it in the battery, the required electrical power is also predicted based on the appliances and equipment installed in the boat, the optimum attachment of solar panels on the boat structure is also calculated. All the methods and information we use are obtained from literature study, discussion with experts, and surveys to Jagur as solar-powered electric boat from Universitas Indonesia.


Land ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 100 ◽  
Author(s):  
Ryser

The Moroccan Agency for Sustainable Energy (MASEN) established one of the largest solar energy projects in the world through a public–private partnership. It is on communal land previously owned by a Moroccan Amazigh (Berber) clan in the Ghessate rural council area, 10 km away from Ouarzazate. The land for the energy project comprises a surface area of more than 3000 hectares. This large-scale land acquisition has led to the loss of access to common-pool resources (land, water, and plants), which were formerly managed by local common property institutions, due to its enclosure, and the areas themselves. This paper outlines how the framing of the low value of land by national elites, the state administration, MASEN, and the subsequent discourses of development, act as an anti-politics machine to hide the loss of land and land-related common-pool resources, and thus an attack on resilience—we call it in our scientific discipline a process of ‘resilience grabbing’, especially for women. As a form of compensation for the land losses, economic livelihood initiatives have been introduced for local people based on the funds from the sale of the land and revenue from the solar energy project Noor Ouarzazate. The loss of land representing the ‘old’ commons is—in the official discourse—legitimated by what the government and the parastatal company call the development-related ‘fruits of growth’, and should serve as ‘new forms of commons’ to the local communities. The investment therefore acts as a catalyst through which natural resources (land, water, and plants) are institutionally transformed into new monetary resources that local actors are said to be able to access, under specific conditions, to sustain their livelihood. There are, however, pertinent questions of access (i.e., inclusion and exclusion), regulation, and equality of opportunities for meeting the different livelihood conditions previously supported by the ‘old’ commons.


2018 ◽  
Vol 173 ◽  
pp. 02003
Author(s):  
Zhang Weijiang

In order to solve the unmanned tunnel illumination in remote areas, control system is designed for tunnel lighting. Meanwhile, solar energy is used to solve the energy problem of tunnel lighting. Based on the specific requirements of the highway tunnel, the intelligent control algorithm is designed. On the basis of the algorithm, the intelligent control tunnel lighting system is realized. Control system for tunnel lighting is stable and reliable, unmanned operation can be realized. Practice shows that the intelligent tunnel lighting control system can be successfully applied in remote areas.


Author(s):  
Xutao Zhang ◽  
Yuefen Gao ◽  
Guohua Shi

As we know, more and more energy are required to meet the demands of society, and this has forced the government to review the economy and energy policies. The solar energy resource is abundant in China, which provides a good foundation with the utilization of solar energy. In China, there is a Silica Valley in Beijing, an Optics Valley in Wuhan, and also an Electricity Valley in Baoding. First, the only domestic national industry base of renewable energy and equipment is located in Baoding National New and High-tech Industry Zone. Secondly, there are great advantages on the photovoltaic industry, the wind power generation and the power transmission and transformation equipment, corresponded with the Yingli Green Energy Holding Company Limited, Zhong Hang Huiteng Wind Power Equipment Corporation Limited and Tian Wei Group Corporation Limited, respectively. Then it is a natural choice for the local government to develop the renewable energy in the readjustment of industry structures. This paper deals with the utilizations and prospects of solar energy.


2012 ◽  
Vol 214 ◽  
pp. 505-509 ◽  
Author(s):  
Yan Chyuan Shiau ◽  
I Ta Lu ◽  
Chen I Tsai ◽  
Chih Ying Lee

Taiwan is located in the West Pacific Earthquake Zone. Fulda Nuclear power plant disaster caused by March 11, 2011 earthquake not only impact Japan, all countries around this area have been forced to face the radiation threaten. This event strengthens advanced organizations to search the green energy. Solar energy and wind power that utilizes the nature to generate electricity energy are widely accepted around the world. In April, 2011, Germany has passed the waste nuclear provision. The BIPV (the Building Integrated Photo Voltaic) has not only the economic benefits of energy generation also reduce the carbon emissions and building initial cost. The Renewable Energy Sources Regulations has been established in June 12, 2010 in Taiwan that proclaimed the green energy generation has been started. The development of Photovoltaic was discussed in this study. The Government's efforts to construct the wind power energy were analyzed to explore the research potential of green energy development in Taiwan. The development goals and vision were explored for Taiwan's energy resource in this article. The power conversion efficiency of commonly used solar cells was investigated. Through the investment in key bottleneck and innovative technologies, the government provides incentives to increase domestic demand and consumption. Focusing on the international market to enhance the scale can construct a perfect green value chain in Taiwan.


2011 ◽  
Vol 130-134 ◽  
pp. 2608-2611
Author(s):  
Xu Mei

With the development and maturity of intelligent buildings, energy conservation become a trend, lighting control systems are becoming increasingly popular. At the same time with the rapid development of electronic technology, microcomputer as a subject and core for embedded control systems, instead of the traditional conventional electronic circuits of the control system, based on single chip microcomputer control system has been widely used in intelligent building. This text directs against the power consuming wasting phenomenon of public place, regard AT89C51 as the core, propose a measurement for Pyroelectric infrared sensor and light combination of intelligent lighting control system. By judgment on the light intensity and indoor if someone automatically switch lights, achieve the purpose of energy saving.


2015 ◽  
Vol 743 ◽  
pp. 248-251
Author(s):  
X.L. Wang ◽  
J.T. Chen ◽  
J.X. Liang ◽  
T.Y. Yin ◽  
Y. Li

With the rapid development of smart grid and green energy technologies, Bidirectional charger is paid more and more attention.This paper mainly studies the voltage stability of Bidirectional charger in the process of charging and the grid current waveform distortion rate of the discharge process. Put forward a control method based on RTW matlab/simulink. Build the simulink model and control model in the simulink environment.Then the code will be burned into the DSP processor complied from control model to the corresponding simulink model which achieved the desired effect.This method can guarantee the stability the current and voltage in the two pattern of the constant current source and the constant voltage source.In the process of discharge,the Grid-connected total harmonic current distortion rate less than 5%,the power factor is basic to 1.The simulation results and hardware platform experiment of DSP2812 all proved that this method is effective.


2014 ◽  
Vol 602-605 ◽  
pp. 1260-1263
Author(s):  
Yan Peng ◽  
Kai Xia ◽  
Jia Yuan Wang

With the rapid development of the Smartphone in recent years, it has been a popular personal mobile communication device. How to make the Smartphone be a better service for our lives is an important direction of research in our smart home. This article describes how to integrate the Android, Bluetooth technology into the control of lighting equipment to realize the lighting equipment’s power automatic switching.


2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Alih Aji Nugroho

The world is entering a new phase of the digital era, including Indonesia. The unification of the real world and cyberspace is a sign, where the conditions of both can influence each other (Hyung Jun, 2018). The patterns of behavior and public relations in the virtual universe gave rise to new social interactions called the Digital Society. One part of Global Megatrends has also influenced public policy in Indonesia in recent years. Critical mass previously carried out conventionally is now a virtual movement. War of hashtags, petitions, and digital community comments are new tools and strategies for influencing policy. This paper attempts to analyze the extent of digital society's influence on public policy in Indonesia. As well as what public policy models are needed. Methodology used in this analysis is qualitative descriptive. Data collection through literature studies by critical mass digital recognition in Indonesia and trying to find a relationship between political participation through social media and democracy. By processing the pro and contra views regarding the selection of social media as a level of participation, this paper finds that there are overlapping interests that have the potential to distort the articulation of freedom of opinion and participation. - which is characteristic of a democratic state. The result is the rapid development of digital society which greatly influences the public policy process. Digital society imagines being able to participate formally in influencing policy in Indonesia. The democracy that developed in the digital society is cyberdemocracy. Public space in the digital world must be guaranteed security and its impact on the policies that will be determined. The recommendation given to the government is that a cyber data analyst is needed to oversee the issues that are developing in the digital world. Regulations related to the security of digital public spaces must be maximized. The government maximizes cooperation with related stakeholders.Keywords: Digital Society; Democracy; Public policy; Political Participation


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