Autonomous adaptive sensorless controller of inverter-based islanded-distributed generation system

被引：17
作者：
Ahmed, K. H. [1 ]
Massoud, A. M. [1 ]
Finney, S. J. [1 ]
Williams, B. W. [1 ]
机构：
[1] Univ Strathclyde, Dept Elect & Elect Engn, Glasgow G1 1XW, Lanark, Scotland
来源：
IET POWER ELECTRONICS | 2009年 / 2卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
LOAD-SHARING CONTROL; PARALLEL INVERTERS; DEADBEAT CONTROL; UPS INVERTERS; VOLTAGE; RECTIFIERS; SCHEME; DESIGN;
D O I：
10.1049/iet-pel.2008.0029
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A control method for inverter operation in an islanded-distributed generation system is presented. The controller provides sufficient active and reactive power to match the connected load, therein providing high power quality. Control in this mode is based on voltage and frequency droops. Detailed analysis, based on the concept of harmonic impedance, establishes the appropriateness of inductor current feedback against capacitor current feedback, with respect to inverter output power quality. Steepest descent adaptive control is embedded to estimate the output voltage for sensorless operation, which enhances system robustness and performance. To compensate the DSP calculation delay, a modified Kalman filter design is discussed. Simulation and experimental results demonstrate the validity of the proposed control method.
引用
收藏
页码：256 / 266
页数：11
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