• Solar energy (wind) with the design and application of VRL
    Abstract This paper mainly introduces solar (wind) power generation systems such as used in the design and application of VRLA,Hp laptop battery with a view to VRLA batteries for use in the new energy provide some reference.
    Keywords solar energy (wind power) VRLA battery

    Design andApplication of VRLA in Solar
    (Wind) Energy System
    by Xiong Xianming * Yu Anye

    Abstract This paper introduces design and application of VRLA in solar (wind) energy system in order to offer some basic knowledge about VRLA batteries used in new energy.
    Keywords solar (wind) energy VRLA battery
    * Panyu Henda Power Industrial Co. Ltd

    0 Introduction
    According to World Bank statistics, about 20 million people worldwide power shortage. According to UN statistics,Hp laptop battery
    HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, only in South America, Peru, Brazil is why about 20 million small villages in Africa 1 million small villages lacking electricity supply; while in China there are at least 4000 million to 5000 million people, nearly 120,000 the lack of electricity supply to small villages, which are mainly distributed in Yunnan, Tibet, Xinjiang, Qinghai, Inner Mongolia, Gansu, Sichuan, Hunan and other places. From the 90s, especially in the 1992 Conference on Environment in Brazil, the United Nations through a number of international organizations (such as the World Bank, the International Lead and Zinc Association (ILZRO)) to implementation of the "Project Sunshine," HP F4098A Battery, while China's State Development Planning Commission is to carry out "China's bright" project to address the supply of electricity in remote areas, so that it can watch television programs, and use electrical appliances.
    "Sunshine" that is, solar energy (wind) electricity generated by power system through a number of storage devices (such as: battery) storing up to provide villagers (pastoralists) lighting, watching TV, etc. required for the load. There are two kinds of manner: One is single-family use, can be moved, mainly pastoral use; while another is composed of dozens of families in a small village, sharing a system. In our single-family use of a relatively large number.
    Panyu Hengda Power Industrial Co., Ltd. has been involved in China's light construction projects, and for providing supporting VRLA batteries, has already reached three years, good performance, we now experience in this area give a brief account for all to share.

    A solar (wind) power generation system, the basic work flow
    1.1 single-family use the system (see Table 1, Table 2)
    In our country through the DC converter converts AC power supply, power supply systems are also complementary scenery.
    1.2 village power supply system (see Table 3)
    P1, P2, P3, P4, said photovoltaic systems or wind generators, battery energy storage throughout the system plays a role.Hp laptop battery
    HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, Most of our items will be added throughout the system of a diesel generator set.

    2 Solar energy (wind) power generation system requirements for battery
    In solar (wind) power generation system, most of them use batteries as storage devices,HP F4809A Battery, while the overwhelming majority of batteries used are lead-acid batteries, and now many places have adopted VRLA batteries, mainly because of its cheap.
    In solar (wind) power generation system, the battery requirements, mainly with the local climate and the use of the way, so different. For example, Nominal Capacity: There are 5 hours rate, a 24-hour rate, 72-hour rate, the rate of 100 hours, 240 hours of rate and rate of 720 hours; purposes different from the daily depth of discharge is not the same, such as Peru in South America, with in the "Project Sunshine" batteries required 40% to 50% per day of middle depth of discharge, while in Japan for the beacon light for the low-current battery discharge time. Batteries can be divided into shallow circulation and deep-cycle types. For the solar energy (wind) system used in batteries, the main requirements are:
    1) Rated Capacity: The existing fixed-type VRLA batteries, machinery, post and telecommunications, electricity and other standards for the 10-hour rate. In the 99 years of the promulgation of "lead-acid storage batteries," compared with 30-hour rate (JB/T9653-1999), is targeted at dry-charged lead-acid batteries. For the fixed-type VRLA batteries, preferably in 20-hour rate or a 24-hour rate, to meet the daily 5h, able to withstand three days without the sun (wind) and the daily supply;
    2) low-temperature discharge (charge) performance,
    3) After the deep discharge recovery performance;
    4) Life: 12V series of five years or so, 2V series of eight years;
    5) may be used for more than 2 500m above sea level
    6) The battery in the battery of compliance requirements.

    3, solar energy (wind) power generation system of different modes of VRLA
    Charge mode 3.1
    For solar energy (wind) power generation system in the VRLA battery with the traditions,Hp laptop battery
    HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, in order to be able to receive from the power system efficiently generate electricity,HP F4812A Battery, batteries are usually in an incomplete state of charge (POSC), most of the time to maintain discharge status, another charge was also influenced by the weather, sometimes over-discharge put it aside.

    3.2 usage patterns
    For solar energy (wind) power generation system of the VRLA battery usage patterns of its major local climate-related, as stated before in South America, Peru, on a daily basis 40% ~ 50% of the middle depth of discharge, in China's light construction projects single-family use of the battery is only for 20% to 30% of the discharge.

    3.3 Failure Mode
    According to Japan, the United States and other countries in the solar power generation system used in VRLA batteries survey found that: Because VRLA batteries are usually in non-fully charged state, so easily give rise to positive and negative plates of lead sulfate, leading to loss of battery capacity.

    4 VRLA battery design
    Taking into account VRLA batteries in solar (wind) power generation system in charge mode and failure modes, especially for the "China Light" project, combined with its use of the environment. In the design of conventional VRLA reserve, based on the need to consider the following aspects:
    1) Because VRLA batteries in operation are not fully charged state, and sometimes there are still put it aside after the deep discharge; it should pay attention to the Ah battery charging efficiency and deep discharge recovery performance after, combined with the International Federation of advanced lead-acid batteries (ALABC ) research is to develop a solar power VRLA batteries using grid alloys, and samples tested by experiment, its Ah charging efficiency and deep discharge recovery performance after the very satisfactory.
    2) In the positive and negative lead paste, add to increase the electrical conductivity of the additives,HP 319411-001 Battery, such as: graphite, acetylene black and so on.
    Three) on the safety valve for more than 2 500m above sea level need to consider the application of the pressure range.
    4) The single cell within the battery consistency requirements. Consistency here include not only the battery open circuit voltage, the initial capacity, also includes the battery internal resistance, self-discharge, as well Ah charging efficiency, which requires from the beginning to the 4-cast plate operations function tests are required to control a smaller within the framework of tolerance, using casting, Hp laptop battery
    HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery,machine coated and precision injection acid is necessary for basic security.


    References
    1 Alaskan climes show VRLA's potential Batteries International. April 2001
    2 The Rap On Raps: A battery-based power solution The battery man. August 2001
    Three solar systems with lead-acid battery in the operation of the failure mode (Japanese translation)
    4 Solar Energy Journal. 1999 special issue

  • It is almost dry batteries in today's electrical necessities of life. TV, CD drive, VCD machine, DVD machine, air-conditioning equipment and other household appliances are equipped with remote control, remote control is used in batteries, no batteries, brought about by remote control you can not enjoy the convenience. Carry more of the small electrical appliances, VCR, reading, an interview with machines, Walkman, BP machine and so on and so on, these things is also a display from the batteries.Hp laptop battery Wide use of dry-cell batteries are used to large families in the modernization of people, of portable electrical appliances play an important role, is to enhance the quality of life and show an important link. Present-day supply of dry-cell batteries are abundant, no one need be lit for a hurry to buy batteries.Hp laptop battery HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, Not to mention the great shopping malls, large supermarkets, the grocery store is the streets,HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), anywhere in the world to spread the pendulum can buy the battery. Come easy, to run out of used batteries is not too concerned about, not attentive. Can be done so you know how much harm it? An abandoned dry-cell hp pavilion dv4000 battery , hp pavilion ze2000 battery , hp presario m2000 battery can one square meters of land barren for 50 years. Battery contains serious damage to human health of metal compounds: mercury, nickel, lead, zinc, manganese, acid, alkali. Used batteries to the rivers, lakes, groundwater, land pollution threaten human health, damage to the living environment of mankind. To this end the United Nations Environment Program signed the "control of transboundary movement of hazardous wastes and disposal of the Basel Convention", China's State Environmental Protection Administration, State Economic and Trade Commission, the National Foreign Economic and Trade Committee, the Ministry of Public Security also issued a joint "national list of hazardous waste." Hazardous wastes listed in these documents are included in the battery with those of raw materials harmful compounds.

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    Ordinary dry-cell batteries can not be used to repeat the charge.HP F4098A Battery, Beijing Star Technology Co., Ltd. Hao-wei in a high degree of environmental awareness and a strong sense of responsibility and manufacturers and technology through science and technology to solve this problem. GS-0201 rechargeable alkaline batteries tested instrument proved to be an environmentally friendly, safe, efficient,HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), practical charging device, a rechargeable 50, and its advantage is that the formal general qualified manufacturers reusable alkaline batteries charge and discharge times to hundreds of times, is the real waste to treasure, with it, can be used as a battery to hundreds of used batteries, the corresponding user to save money, and an ordinary battery with the most expensive, however it may be 1 cents, but the most important is that it hundreds of times a few times on the batteries used in reducing the pollution of the environment,HP F4812A Battery, environmental benefits at a glance.

    The quality of life of human beings, not only reflected in the popularity and use of electrical appliances of convenience,Hp laptop battery HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, but also the health of the green. Although rechargeable compaq presario v4000 battery , HP Pavilion DV1000 battery do not have the final instrument used to eradicate the environmental pollution caused by batteries, but that is only step towards protecting the environment to great a great step forward. To this end, we should like to thank Hao Wei Beijing Star Technology Co., Ltd. and related scientific research efforts of the manufacturer.

    Guangdong Province yesterday, the integrated treatment of hazardous waste centers of the first phase of Huidong County in the stone town of Liang Liu started, is expected to be completed by the end of 2004. After the completion of the central,HP 319411-001 Battery,HP F4809A Battery, long-standing problem of used batteries in Guangdong Province to deal with the situation of nowhere will be fundamentally changed.

    It is reported that Guangdong Province to deal with hazardous waste integrated demonstration center is the provincial government in 2003 focus on the 10 projects focused on environmental engineering projects a total investment of 540 million. Project Location Town, Huidong County stone Liu Liang, 24.8 hectares of land, in the long-term planning to deal with 100,000 tons of hazardous waste. The project scope of services for the Pearl River Delta and eastern regions, the risk of services including the industrial solid waste collection, transportation,HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), storage and disposal to deal with.

    It is reported that an increasing number of hazardous waste in our province, the province in 2000 produced 930,000 tons of hazardous waste, but a serious shortage of treatment capacity, only the construction of the Shenzhen safety landfill of hazardous waste, handling 20,000 tons a year.HP Presario 2100 Battery(compaq 2100 Battery), According to “Guangdong Province, solid waste pollution prevention and control planning (2001-2010)”, also in Dongguan, Guangdong, Jiangmen and other places around the construction of 10 hazardous waste treatment facilities for hazardous waste to create a safe “home.”

    Tips
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