欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
恒压恒频逆变器要求具有高质量的输出电压波形。从传递函数角度建立逆变器数学模型,并分析负载扰动对逆变器输出电压的影响。比较已有波形控制方案优缺点,为提高控制系统对不同负载的适应性,在电压反馈控制的基础上,引入自适应建模方法,提出基于自适应逆控制及扰动消除的逆变器波形反馈控制技术。控制系统参数由自适应算法实现,只需检测输出电压一个状态量,硬件结构简单。将改进型的变步长自适应算法用于逆变器对象及逆对象的自适应建模,简化建模过程,提高模型精度,以兼顾控制系统暂态和稳态性能。仿真和实验结果验证控制方案的有效性,在非线性负载情况下也能保证逆变器有较好的输出电压波形质量。
英文摘要：
High quality output voltage waveform of constant voltage constant frequency inverter is required.Its mathematical model based on transfer function is established and the load disturbance is analyzed.Some control strategies are compared and the adaptive modeling is introduced based on the voltage feedback control.The feedback control based on adaptive inverse control and disturbance elimination is proposed to improve the adaptability of control system to the load variety.The control system parameters are set by the adaption algorithm and only the output voltage needs to be sampled,resulting in simplified hardware structure.An improved variable-step adaption algorithm is applied in the adaptive modeling of inverter object and inverse object to simplify the modeling process and improve the model accuracy for both static and transient performance of the control system.The effectiveness of the proposed control strategy is verified by simulation and experiment and the high quality output voltage waveform of inverter is ensured for nonlinear loads.
同期刊论文项目
同项目期刊论文
期刊信息
位置：