Outline

  • I. Introduction
  • II. Description of Schematic of the System Topology and Hardware Modules of the Hsapf Model
  • III. Averaged Modeling of the Hsapf
  • IV. Development of the Control System
  • V. Results and Discussions

رئوس مطالب

  • خلاصه
  • I.مقدمه
  • II. شرح شماتیک توپولوژی سیستم و ماژول‌های سخت افزاری مدل HSAPF
  • III. مدلسازی متوسط HSAPF
  • IV. توسعه سیستم کنترل
  • A.طرح تولید ولتاژ مرجع (رویکرد کنترل ترکیبی مبتنی بر روش قاب مرجع همزمان(HSRF))
  • B.طراحی کنترلر حالت لغزش پیشنهادی برای HSAPF
  • C. آنالیز پایداری کنترلر مد لغزشی براساس HSAPF
  • V.بحث و نتیجه گیری
  • Aنتایج شبیه سازی
  • B.نتایج تجربی
  • VI.نتیجه گیری

Abstract

The degradation in power quality causes adverse economical impact on the utilities and customers. Harmonics in current and voltage are one of the most commonly known power quality issues and are solved by the use of a hybrid series active power filter (HSAPF). In this paper, a new controller design using sliding-mode controller-2 is proposed to make the HSAPF more robust and stable. An accurate averaged model of a three-phase HSAPF is also derived in this paper. The design concept of the robust HSAPF has been verified through simulation and experimental studies, and the results obtained are discussed.

Keywords: - - - -

Conclusions

In this paper, a new robust controller design for HSAPF has been presented. The control design is established by sliding mode controller-2 that derives the equivalent control law. This control law is very much helpful for switching pattern generation. The robustness of the proposed controller has been verified by analyzing the performance under steady state as well as transient condition of the power system. With the application of this technique, the functionalities of the HSAPF are enhanced. From the obtained simulations as well as experimental results, the proposed HSAPF has been observed to provide efficient current as well as voltage harmonic mitigation, reference voltage tracking behaviour, and reactive power compensation with dynamically varying load conditions. In the presence of an additive white noise, switching losses and distortion in both source current as well as load voltage, SRF method is found to be the best one for reference generation. Furthermore, the main feature of sliding mode controller- 2 is the variable structure control method , which reduces tracking error distortion, suppress chattering, noise and hence a perfect gain stability of the HSAPF system has been achieved. The proposed filter can compensate source currents and also adjust itself to compensate for variations in non-linear load currents, maintain dclink voltage at steady state and helps in the correction of power factor of the supply side adjacent to unity. Simulation and experimental results under several system operating conditions of load has verified the design concept of the suggested sliding mode based HSAPF to be highly effective and robust.

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