快速而准确地计算可用输电能力(available transfer capability,ATC),对于大型互联电网的运行与调度具有重要意义。提出一种考虑多方面影响因素的适用于大型互联电网的可用输电能力快速计算方法。该模型采用重复潮流法构建动态ATC的计...快速而准确地计算可用输电能力(available transfer capability,ATC),对于大型互联电网的运行与调度具有重要意义。提出一种考虑多方面影响因素的适用于大型互联电网的可用输电能力快速计算方法。该模型采用重复潮流法构建动态ATC的计算框架,通过优化校验过程与自适应步长控制提高了计算速度。文中全面地考虑了包括暂态稳定约束在内的多种动态和静态约束;在分析不同的功率调整过程对计算结果影响的基础上,给出3种具有实际指导意义的功率增长方向及其计算方法;并引入暂态稳定的概率风险评估,间接计及不确定性因素,计算系统承担一定失稳风险时的ATC。所开发软件在实际电网中的应用验证了所提算法的有效性和实用性。展开更多
China＇s transition to sustainable growth model in the coming years depends on the ability of its industrial sector to adapt and innovate. In the llth Five-Year Plan period, China entered the intermediate stage of ind...China＇s transition to sustainable growth model in the coming years depends on the ability of its industrial sector to adapt and innovate. In the llth Five-Year Plan period, China entered the intermediate stage of industrialization and crossed the threshold to become a middle-income country. China＇s current industrial structure, therefore, which is still characteristic of early-stage industrialization, must transition to support intermediate and advanced industrialization. Although resource constraints will pose certain hurdles for this transition, the pressure of these constraints will ultimately serve to catalyze, rather than impede, sustainable industrial growth. Furthermore, industrial transition and upgrade will mean not only changes for the nation＇s industrial structure as a whole but also rethinking the strategic possibilities and direction of industry at the enterprise level. The key to success rests on China＇s ability to improve indigenous development and boost competitive advantage in international markets through the use of new, advanced technologies.展开更多
文摘快速而准确地计算可用输电能力(available transfer capability,ATC),对于大型互联电网的运行与调度具有重要意义。提出一种考虑多方面影响因素的适用于大型互联电网的可用输电能力快速计算方法。该模型采用重复潮流法构建动态ATC的计算框架,通过优化校验过程与自适应步长控制提高了计算速度。文中全面地考虑了包括暂态稳定约束在内的多种动态和静态约束;在分析不同的功率调整过程对计算结果影响的基础上,给出3种具有实际指导意义的功率增长方向及其计算方法;并引入暂态稳定的概率风险评估,间接计及不确定性因素,计算系统承担一定失稳风险时的ATC。所开发软件在实际电网中的应用验证了所提算法的有效性和实用性。
文摘China＇s transition to sustainable growth model in the coming years depends on the ability of its industrial sector to adapt and innovate. In the llth Five-Year Plan period, China entered the intermediate stage of industrialization and crossed the threshold to become a middle-income country. China＇s current industrial structure, therefore, which is still characteristic of early-stage industrialization, must transition to support intermediate and advanced industrialization. Although resource constraints will pose certain hurdles for this transition, the pressure of these constraints will ultimately serve to catalyze, rather than impede, sustainable industrial growth. Furthermore, industrial transition and upgrade will mean not only changes for the nation＇s industrial structure as a whole but also rethinking the strategic possibilities and direction of industry at the enterprise level. The key to success rests on China＇s ability to improve indigenous development and boost competitive advantage in international markets through the use of new, advanced technologies.
