NPC型三电平永磁同步风力发电并网逆变器模型 预测控制满足低电压穿越要求研究OA北大核心CSCDCSTPCD
Model predictive current control of grid-connected neutral-point-clampedpermanent magnet synchronous wind power inverters to meet low-voltage ride-through requirements
在风力发电中低电压穿越要求为:当电网电压降落的时候,风力发电机不脱网且能够稳定电网电压和频率.风力发电机需要较高的功率和电压等级.因此,多电平中中点箝位型三电平逆变器非常适合这种设备.和其它控制方法相比,模型预测控制具有动态响应快和跟踪性能好的优点,但是工作频率低.为了能够满足低电压穿越的要求,提出一种模型预测控制方法实现NPC三电平逆变器的风力转换.所提模型预测控制也能够实现NPC逆变器中点平衡控制,通过选择冗余小矢量实现.仿真和实验验证了所提算法正确性.
The low-voltage ride through (LVRT) requirement demands the wind power to remain connected to the grid in the case of grid voltage dips. And the proposed control method can keep grid voltage and frequency stable. Wind power needs to increase power and voltage ratings. Therefore, multilevel inverters, such as neutral-point-clamped (NPC) inverters, are suited for this application. Model predictive control presents fast dynamic response and good current referen…查看全部>>
马临超;蒋炜华;薛宝星
河南工学院,河南 新乡453003河南工学院,河南 新乡453003河南省电力公司检修公司,河南 郑州450007
低电压穿越NPC型三电平逆变器模型预测控制中点平衡控制
low-voltage ride through (LVRT)three-level NPC invertermodel predictive power controlneutral-point potential (NP) control
《电力系统保护与控制》 2017 (16)
151-156,6
河南省教育厅科学研究重点项目(13A470216)
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