Applying the Square-Root-Condition combined with DB-DTFC as a Flux Observer-Based Maximum Torque per Flux Strategy
Applying the Square-Root-Condition combined with DB-DTFC as a Flux Observer-Based Maximum Torque per Flux Strategy
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应用平方根条件与 DB-DTFC 结合作为基于磁通观测器的每磁通最大扭矩策略
DOI：
10.1109/sled.2019.8896256
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Michael Saur
中科院分区：
文献类型：
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作者：
Hadi El Khatib;Mario Peña;Benjamin Grothmann;E. Gedlu;Michael Saur
通过磁通和电流观测器的组合，与现有的电流矢量控制（CVC）相比，用于内部永磁同步电机（ipmms）的死磁-直接转矩和磁通控制（DB-DTFC）具有更好的功能。这包括更简单的磁链弱化控制，由于gopinath式磁链观测器，随着速度的增加，参数灵敏度降低，以及在逆变器电压极限处规避反绕组策略。在整个转矩速度范围内的操作可以用一个控制律来完成。对于第二个磁链减弱区域，该算法通过应用平方根条件（SRC）固有地实现最大扭矩每磁链（MTPF）操作。与CVC相反，不需要查找表（LUT），也不需要求解参数相关的MTPF方程。通过分析、仿真和实验结果证明了SRC方法与传统MTPF策略的等价性。参数敏感性分析对两种方法进行了比较和评价。与传统方法相比，证明了SRC算法的优越性能。
Through a combination of flux and current observers, Deadbeat-Direct Torque and Flux Control (DB-DTFC) for Interior Permanent Magnet Synchronous Machines (IPMSMs) has preferred features comparing to the existing Current Vector Control (CVC). These include simpler flux weakening control, less parameter sensitivity with increasing speed due to the Gopinath-style flux observer and evading of anti-windup strategies at the inverter voltage limit. The operation throughout the entire torque speed range can be accomplished with a single control law. For the second flux weakening region, the algorithm inherently achieves the Maximum Torque per Flux (MTPF) operation by applying the Square-Root-Condition (SRC). In contrast to CVC, no Look-Up-Table (LUT) nor solving the parameter-dependent MTPF equation is required. The equivalence of the SRC method to the conventional MTPF strategy is demonstrated analytically, in simulation and through experimental results. A parameter sensitivity analysis compares and evaluates both methods. Superior performance of the SRC algorithm compared to the conventional method is proven.