在下列有关控制系统的说法中.正确的说^是 。 1比例带选得过大,过渡过程时间长;2比例作用规律调节器,加进积分作用时比例带应适当减小;3原则上任何控制对象用PID调节器;4在使用中,调整积分时间应遵循勿小的原则;5控制对象受扰动后,反应越慢,则PID中Td应增大;6测量环节一旦 从闭环断开,则PID调节器输出将发生激烈振荡。 A. ①③⑤ B. ②③⑥ C. ②④⑥ D. ①④⑤
【简答题】Free energy is everywhere around us. There are many ways to make and collect energy from various sources like sun, wind and water. People also realize that everyday stuff can be a source of energy too...