Comparison of Emulated Inertia controller with Synchronous Generator
01 Sep 2020-Vol. 937, Iss: 1, pp 012018
About: The article was published on 2020-09-01 and is currently open access. It has received 3 citations till now. The article focuses on the topics: Control theory & Permanent magnet synchronous generator.
Citations
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TL;DR: An improved emulated inertia control approach focused on the frequency deviation and rate of change of frequency to enhance the inertia of a power system is recommended.
Abstract: The role of renewable energy sources in the power grid is increasing tremendously. However, power electronic converters are used to incorporate RES into the grid without inertia. This article recommends an improved emulated inertia control approach focused on the frequency deviation and rate of change of frequency to enhance the inertia of a power system. The required inertial power calculated from emulated inertia control is delivered through hybrid energy storage systems equipped with a proper hybrid energy storage system control. The fast-varying power calculated from emulated inertia control is linked to super-capacitor. Simultaneously, the battery handles the slow varying power by regulating the DC bus voltage proportionate to the frequency variations. Further, the stability of the emulated inertia control and hybrid energy storage system controller is validated by Bode plots. The simulation results verified the correctness of the proposed emulated inertia control and hybrid energy storage system control. The real-time simulation results with the help of OPAL-RT are presented to validate the proposed method’s feasibility.
9 citations
28 Jun 2022
TL;DR: In this paper , an emulated inertia control (EIC) for a modular multi-level converter (MMC) based solar PV system is proposed, which exploits the energy stored in the submodule capacitance of MMC.
Abstract: High penetration of renewable energy sources (RES) through power electronic converters results in a significant displacement of synchronous generators and decreasing in inertia. To solve the issue, this paper proposes an emulated inertia control (EIC) for a modular multi-level converter (MMC) based solar PV system. The proposed EIC exploit the energy stored in the submodule capacitance of MMC. The proposed system does not need any external energy storage systems to enhance the inertia of the grid. The energy stored in the submodule capacitance of the MMC is used in the inertial response. The proposed EIC technique at the MMC maintains stability during and after the contingency event. This paper correlates the inertia constant of MMC and synchronous generator. The simulation results show that the proposed EIC at MMC enhances the inertia of a weak grid.
28 Jun 2022
TL;DR: In this paper , the authors proposed an emulated inertia control (EIC) for a modular multi-level converter (MMC) based solar PV system, which exploited the energy stored in the submodule capacitance of MMC.
Abstract: High penetration of renewable energy sources (RES) through power electronic converters results in a significant displacement of synchronous generators and decreasing in inertia. To solve the issue, this paper proposes an emulated inertia control (EIC) for a modular multi-level converter (MMC) based solar PV system. The proposed EIC exploit the energy stored in the submodule capacitance of MMC. The proposed system does not need any external energy storage systems to enhance the inertia of the grid. The energy stored in the submodule capacitance of the MMC is used in the inertial response. The proposed EIC technique at the MMC maintains stability during and after the contingency event. This paper correlates the inertia constant of MMC and synchronous generator. The simulation results show that the proposed EIC at MMC enhances the inertia of a weak grid.
References
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TL;DR: This study reviews the various control techniques and technologies that offset a decrease in inertia and discusses the inertia emulation control techniques available for inverters, wind turbines, photovoltaic systems, and microgrid.
Abstract: The utilization of power electronic inverters in power grids has increased tremendously, along with advancements in renewable energy sources. The usage of power electronic inverters results in the decoupling of sources from loads, leading to a decrease in the inertia of power systems. This decrease results in a high rate of change of frequency and frequency deviations under power imbalance that substantially affect the frequency stability of the system. This study focuses on the requirements of inertia and the corresponding issues that challenge the various country grid operators during the large-scale integration of renewable energy sources. This study reviews the various control techniques and technologies that offset a decrease in inertia and discusses the inertia emulation control techniques available for inverters, wind turbines, photovoltaic systems, and microgrid. This study attempts to explore future research directions and may assist researchers in choosing an appropriate topology, depending on requirements.
184 citations
TL;DR: The main objective of this research work is to develop a fuzzy logic–based pitch angle control and to developed a static transfer switch to make power balance between the wind power generation system and the loads.
Abstract: In this literature, a new automated control strategy has been developed to manage the power supply from the wind power generation system to the load. The main objective of this research work is to ...
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Abstract: Science and Engineering Research Board, India, Department of Science & Technology, Government of India: ECR/2017/000259
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