Standing by

1.Leaving for America with my friends standing by.

2.There is a peach standing by the lake.

Based on the following story, continue the story by writing two paragraphs, paragraph 1 beginning with "A few weeks later, I went to the farm again. " and paragraph 2 beginning with "I was just about to leave when the hummingbird appeared."respectively with 150 words. I was invited to a cookout on an old friend's farm in western Washington. I parked my car outside the farm and walked past a milking house which had apparently not been used in many years.A noise at a window caught my attention,so I entered it. It was a hummingbird,desperately trying to escape. She was covered in spider-webs and was barely able to move her wings. She ceased her struggle the instant I picked her up. With the bird in my cupped hand, I looked around to see how she had gotten in. The broken window glass was the likely answer. I stuffed a piece of cloth into the hole and took her outside,closing the door securely behind me. When I opened my hand, the bird did not fly away; she sat looking at me with her bright eyes.I removed the sticky spider-webs that covered her head and wings. Still, she made no attempt to fly.Perhaps she had been struggling against the window too long and was too tired? Or too thirsty? As I carried her up the blackberry-lined path toward my car where I kept a water bottle, she began to move. I stopped, and she soon took wing but did not immediately fly away. Hovering,she approached within six inches of my face. For a very long moment,this tiny creature looked into my eyes, turning her head from side to side. Then she flew quickly out of sight. During the cookout, I told my hosts about the hummingbird incident. They promised to fix the window. As I was departing, my friends walked me to my car. I was standing by the car when a hummingbird flew to the center of our group and began hovering. She turned from person to person until she came to me. She again looked directly into my eyes, then let out a squeaking call and was gone. For a moment, all were speechless. Then someone said, “She must have come to say good-bye.”
02-12
光伏储能虚拟同步发电机VSG并网仿真模型(Similink仿真实现)内容概要:本文档介绍了光伏储能虚拟同步发电机(VSG)并网仿真模型的Simulink实现方法,重点在于通过建立光伏储能系统与虚拟同步发电机相结合的仿真模型,模拟其在并网过程中的动态响应与控制特性。该模型借鉴了同步发电机的惯性和阻尼特性,提升了新能源并网系统的频率和电压支撑能力,增强了系统的稳定性与可控性。文档还提及相关电力系统仿真技术的应用,包括逆变器控制、储能配置、并网稳定性分析等,并提供了完整的Simulink仿真文件及技术支持资源链接,便于科研人员复现与二次开发。; 适合人群:电气工程、自动化、能源系统等相关专业的研究生、科研人员及从事新能源并网技术开发的工程师。; 使用场景及目标:①用于研究光伏储能系统在弱电网条件下的并网稳定性问题;②掌握虚拟同步发电机(VSG)控制策略的设计与仿真方法;③支持高水平论文(如EI/SCI)的模型复现与创新研究;④为微电网、智能电网中的分布式能源接入提供技术参考。; 阅读建议:建议结合提供的Simulink模型文件与文档说明逐步操作,重点关注VSG控制模块的参数设置与动态响应分析,同时可延伸学习文中提及的MPPT、储能管理、谐波分析等相关技术,以提升综合仿真能力。
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