虚拟负电感控制的高频段参数整定方法OACSTPCD
High-frequency Parameter Setting Method with Virtual Negative Inductance Control
随着直流微电网电力电子化程度的提高,多变换器在硬件和算法上的深度耦合会直接影响电网电压的稳定.为了分析恒功率负载引起电压振荡的机理,建立直流微电网复频域模型并推导电压稳定的约束条件.在此基础上构建虚拟负电感补偿环节以抵消LC滤波器电感对电压稳定的影响,从而满足约束条件并抑制系统的电压振荡,并对虚拟负电感的高频段补偿方法和工程设计方法及参数选择依据进行研究.最后,采用奈奎斯特判据分析直流微电网的稳定性,并通过实验验证了所提算法的有效性.
The coupling of multiple converters between hardware and algorithm will directly affect the stability of grid voltage with the improvement of power electronics in DC microgrid.To analyze the mechanism behind voltage oscilla-tions caused by constant power load,a complex frequency domain model of the DC microgrid was established,and the constraint conditions of voltage stability were derived.On this basis,a virtual negative inductance compensation link was con…查看全部>>
曹敏;黄锦敬
湛江科技学院智能制造学院,湛江 524094湛江科技学院智能制造学院,湛江 524094
动力与电气工程
虚拟负电感恒功率负载负阻抗特性电压振荡
virtual negative inductanceconstant power loadnegative impedance characteristicvoltage oscillation
《电力系统及其自动化学报》 2024 (1)
71-79,9
广东省普通高校特色创新项目(2021KTSCX170)
评论