1-分布式电源并网研究现状与发展.ppt

智能配用电讲座--- 分布式电源并网 分布式发电的优点 分布式发电系统中各电站相互独立，用户由于可以自行控制，不会发生大规模停电事故，所以安全可靠性比较高； 分布式发电可以弥补大电网安全稳定性的不足，在意外灾害发生时继续供电，已成为集中供电方式不可缺少的重要补充； 可对区域电力的质量和性能进行实时监控，非常适合向农村、牧区、山区，发展中的中、小城市或商业区的居民供电，可大大减小环保压力； 分布式发电的输配电损耗很低，甚至没有，无需建配电站，可降低或避免附加的输配电成本，同时土建和安装成本低； 调峰性能好，操作简单，由于参与运行的系统少，启停快速，便于实现全自动。 * * * 国网电科院作为国网用电信息采集系统管控组副组长单位，全面参与管控方案、管控计划的制定，确保系统符合管控的要求 * * * * * 国网电科院作为国网用电信息采集系统管控组副组长单位，全面参与管控方案、管控计划的制定，确保系统符合管控的要求 * * * * * * * * * * * * * Urbanization…As the People’s Daily reported last month (3/29/10), Chinas rapid urbanization is expected to continue and China will become an urban society within five years, with urbanization rate reaching at least 50% (source: Chinese govt)In 2009, Chinas urban population reached 622 million people and urbanization rate has been increased to over 46 percent by statistical counting. Chinas urbanization rate is rapidly getting closer to the average level of middle-income countries. Energy demand growth…tremendous growth over the past decade has created massive need for energy to power businesses consumer lifestyles; national energy needs are expected to double in next 10 years (source: Zpryme Reports) China and India are the fastest-growing non-OECD economies, and they will be key world energy consumers in the future. China and India together accounted for about 10% of the world’s total energy consumption in 1990, but in 2006 their combined share was 19%. Strong economic growth in both countries, with their combined energy use increasing nearly twofold and making up 28% of world energy consumption in 2030. (Source: IEA, “World Energy Outlook 2009”) Environmental impact of CO2 emissions…as the leading source of greenhouse gas emissions, energy is at the heart of the problem must be integral to the solution. China’s per-capita GDP is less than one-tenth of U.S. levels, and about half of its 1.3 billion people earn less than $2 per day. Challenge for China: fostering rapid economic growth while at the same time l