A Refined Self-Tuning Filter-Based Instantaneous Power Theory Algorithm for Indirect Current Controlled Three-Level Inverter-Based Shunt Active Power Filters under Non-sinusoidal Source Voltage Conditions

被引:11
作者
Hoon, Yap [1 ]
Radzi, Mohd Amran Mohd [1 ]
Hassan, Mohd Khair [1 ]
Mailah, Nashiren Farzilah [1 ]
机构
[1] Univ Putra Malaysia, Fac Engn, Dept Elect & Elect Engn, Serdang 43400, Selangor, Malaysia
关键词
current harmonics; distorted supply voltage; multilevel inverter; power electronics; power quality; reactive power compensation; SYNCHRONOUS REFERENCE FRAME; DISTORTED GRID VOLTAGE; SPACE VECTOR PWM; MULTILEVEL INVERTERS; 3-PHASE; 3-WIRE; COMPENSATION; PERFORMANCE; IMPLEMENTATION; DESIGN; SCHEME;
D O I
10.3390/en10030277
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this paper, a refined reference current generation algorithm based on instantaneous power (pq) theory is proposed, for operation of an indirect current controlled (ICC) three-level neutral-point diode clamped (NPC) inverter-based shunt active power filter (SAPF) under non-sinusoidal source voltage conditions. SAPF is recognized as one of the most effective solutions to current harmonics due to its flexibility in dealing with various power system conditions. As for its controller, pq theory has widely been applied to generate the desired reference current due to its simple implementation features. However, the conventional dependency on self-tuning filter (STF) in generating reference current has significantly limited mitigation performance of SAPF. Besides, the conventional STF-based pq theory algorithm is still considered to possess needless features which increase computational complexity. Furthermore, the conventional algorithm is mostly designed to suit operation of direct current controlled (DCC) SAPF which is incapable of handling switching ripples problems, thereby leading to inefficient mitigation performance. Therefore, three main improvements are performed which include replacement of STF with mathematical-based fundamental real power identifier, removal of redundant features, and generation of sinusoidal reference current. To validate effectiveness and feasibility of the proposed algorithm, simulation work in MATLAB-Simulink and laboratory test utilizing a TMS320F28335 digital signal processor (DSP) are performed. Both simulation and experimental findings demonstrate superiority of the proposed algorithm over the conventional algorithm.
引用
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页数:21
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