摘要
针对传统电梯仅由电网供电时耗能严重的问题,研究了支持新能源接入的电梯控制系统。系统采用了具有高功率因数、低谐波污染和能量可逆优点的双PWM结构。通过建立三相电压型PWM整流器和永磁同步电动机在两相同步旋转dq坐标系下的数学模型后,采用了双闭环控制策略。为了在新能源功率变化时,使系统具有更好的稳定性和更快的响应特性,提出了采用基于反步法设计的非线性控制算法,提高了系统的控制性能。最后开发了新能源驱动的变频调速的实验平台,并进行了实验验证,实验结果验证了系统方案设计的正确性和有效性。
A When the traditional elevator is powered by grid, the energy consumption is a serious problem. New energy powered elevator control system was discussed. A dual pulse width modulation （PWM） structure with advantages of high power factor, low harmonic pollution and energy reversible was adopted in the system. After mathematical models of the three-phase voltage-source PWM rectifier and permanent magnet synchronous motor in the dq synchronous frame were established and analyzed, dual close-loop control strategy was applied. When the new energy changes, for better stability and faster response, a nonlinear control strategy based on backstepping method was put forward. The new energy powered experiment platform was developed, and experimental results validate the design of system scheme.
出处
《电气传动》
北大核心
2015年第6期10-15,共6页
Electric Drive
基金
江苏省高校自然科学研究项目资助(14KJB470010)
