An adaptive hysteresis band current controller for inverter base DG with reactive power compensation

Ghani, Pooya; Chiane, A.A.; Kojabadi, Hossein Madadi

doi:10.1109/pedstc.2010.5471776

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…Although the control algorithm is easy to implement, the sampling frequency should be high in the control system. Its performance depends on the hysteresis bandwidth, and the bandwidth affects the switching frequency [23,24]. The control algorithm of the system is shown in Fig.…”

Section: Control Of Proposed Systemmentioning

confidence: 99%

Highly efficient three-phase grid-connected parallel inverter system

Isen

Bakan

2018

J. Mod. Power Syst. Clean Energy

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In this paper, a new three-phase grid-connected inverter system is proposed. The proposed system includes two inverters. The main inverter, which operates at a low switching frequency, transfers active power to the grid. The auxiliary inverter processes a very low power to compensate for the grid current ripple. Thus, no active power is processed by the auxiliary inverter. The goal is to produce a grid current with a low total harmonic distortion (THD) and to obtain the highest efficiency from the inverter system. The main inverter is controlled via a space-vector pulse-width modulation owing to its optimum switching pattern, and the auxiliary inverter is controlled via a hysteresis current-control technique owing to the technique's fast dynamic response. The proposed system is analyzed in terms of different DC-link voltage, switching frequency, and filter inductance values. The optimum system parameters are selected that provide a THD value of less than 5%. A prototype inverter system at a 10-kW output power has been implemented. The main inverter operates at a 3-kHz switching frequency, and the auxiliary inverter compensates for the grid-current ripple. In total, a THD of 4.33% and an efficiency of 97.86% are obtained using the proposed inverter system prototype.

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Section: Control Of Proposed Systemmentioning

confidence: 99%

Highly efficient three-phase grid-connected parallel inverter system

Isen

Bakan

2018

J. Mod. Power Syst. Clean Energy

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“…The system minimizes the switching losses by applying a short delay in the algorithm whenever the load current crosses the bands. The proposed algorithm [7] for inverter which connects distributed generation source to the grid made the output of the inverter immune to the fluctuations in the dc input voltage. In [8], a constant switching frequency current error space vector-based hysteresis controller for two-level voltage source inverter-fed induction motor (IM) drives is proposed which uses simple, fast and self-adaptive sector identification logic for sector change detection in the entire modulation range accurately eliminating the chance of introducing additional fifth and seventh harmonic components in phase current and provides harmonic spectrum of phase voltage.…”

Section: Introductionmentioning

confidence: 99%

A New Approach for Constant DC Link Voltage in a Direct Drive Variable Speed Wind Energy Conversion System

Jeevajothi¹,

Devaraj²

2015

Journal of Electrical Engineering and Technology

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-Due to the high efficiency and compact mechanical structure, direct drive variable speed generators are used for power conversion in wind turbines. The wind energy conversion system (WECS) considered in this paper consists of a permanent magnet synchronous generator (PMSG), uncontrolled rectifier, dc-dc boost converter controlled with maximum power point tracking (MPPT) and adaptive hysteresis controlled voltage source inverter (VSI). For high utilization of the converter's power capability and stabilizing voltage and power flow, constant DC-link voltage is essential.Step and search MPPT algorithm which senses the rectified voltage (V DC ) alone and controls the same is used to effectively maximize the output power. The adaptive hysteresis band current control is characterized by fast dynamic response and constant switching frequency. With MPPT and adaptive hysteresis band current control in VSI, the DC link voltage is maintained constant under variable wind speeds and transient grid currents respectively.

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Overview of Hysteresis Current Controller Application in Renewable Energy Based Power Systems

Yunus¹,

Swasti²,

Purwito

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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This paper presents an overview of the Hysteresis Current Controller (HCC) application in Renewable Energy Based Power System. The beginning concept of HCC is considered to be formally introduced by Thomas M. Freederiksen and Ronald W. Russel in 1971 that was registered in US Patent No. US3725673. The fundamental principle of HCC is based on the comparison of the instantaneous load current to the instantaneous sine wave reference where the difference between the two is maintained within the defined upper and lower band. There are some advantages of using HCC including simple, insensitivity to load parameters variations, fast dynamic response and inherent maximum current limiting characteristics. Therefore, based on its robustness, HCC has currently applied also in renewable energy based power plants such as PV converter system, Power Electronics System of Wind Energy, and in SMES control system for Wind Energy Application. However, the drawback of HCC system was also discussed in some papers compared with other control systems, for instant HCC is giving high chattering in torque in IM drive test. Therefore the combination of HCC with other controllers also becomes a new trend to improve the applied system that involving HCC as the main controller.

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An adaptive hysteresis band current controller for inverter base DG with reactive power compensation

Cited by 11 publications

References 9 publications

Highly efficient three-phase grid-connected parallel inverter system

Highly efficient three-phase grid-connected parallel inverter system

A New Approach for Constant DC Link Voltage in a Direct Drive Variable Speed Wind Energy Conversion System

Overview of Hysteresis Current Controller Application in Renewable Energy Based Power Systems

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