Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory

Invertor as a virtual synchronous generator (VSG) to provide virtual inertia and damping can improve the stability of a microgrid, in which the damping is one of the fundamental problems in dynamics. From the view of the Hamiltonian dynamics, this paper researches the damping formation mechanism and...

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Autores principales:	Yun Zeng, Jing Qian, Fengrong Yu, Hong Mei, Shige Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	invertor virtual synchronous generator Hamiltonian modeling damping characteristics damping injection Technology T
Acceso en línea:	https://doaj.org/article/a2ce832f92ad4b5c80632bc8dbddf26e
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id	oai:doaj.org-article:a2ce832f92ad4b5c80632bc8dbddf26e
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spelling	oai:doaj.org-article:a2ce832f92ad4b5c80632bc8dbddf26e2021-11-11T15:53:35ZDamping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory10.3390/en142170821996-1073https://doaj.org/article/a2ce832f92ad4b5c80632bc8dbddf26e2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7082https://doaj.org/toc/1996-1073Invertor as a virtual synchronous generator (VSG) to provide virtual inertia and damping can improve the stability of a microgrid, in which the damping is one of the fundamental problems in dynamics. From the view of the Hamiltonian dynamics, this paper researches the damping formation mechanism and damping injection control of VSG. First, based on the energy composition and dynamic characteristics of VSG, the differential equations system of VSG is established and is transformed into the generalized Hamiltonian system. Second, the effects of the three parameters of VSG, the damping coefficient D, active power droop coefficient, and time constant of excitation <i>T<sub>E</sub></i> on damping characteristics are researched from a dynamic perspective, and simulation research is carried out with an isolated microgrid. Lastly, the control design method of Hamiltonian structure corrections used to add the damping factor and design the equivalent control inject damping to improve the stability of the isolated microgrid. Research shows that the voltage and frequency stability of the isolated microgrid can be effectively improved by selecting three key parameters of VSG and damping injection control. The innovations of this paper are 1. The Hamiltonian model of the inverter is deduced and established by taking the inverter as a virtual generator. 2. Based on the Hamiltonian model, damping characteristics of inverter in the microgrid are studied. 3. Hamiltonian structure correction method is applied to the inverter, and equivalent damping injection is designed to improve the stability of the microgrid.Yun ZengJing QianFengrong YuHong MeiShige YuMDPI AGarticleinvertorvirtual synchronous generatorHamiltonian modelingdamping characteristicsdamping injectionTechnologyTENEnergies, Vol 14, Iss 7082, p 7082 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	invertor virtual synchronous generator Hamiltonian modeling damping characteristics damping injection Technology T
spellingShingle	invertor virtual synchronous generator Hamiltonian modeling damping characteristics damping injection Technology T Yun Zeng Jing Qian Fengrong Yu Hong Mei Shige Yu Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
description	Invertor as a virtual synchronous generator (VSG) to provide virtual inertia and damping can improve the stability of a microgrid, in which the damping is one of the fundamental problems in dynamics. From the view of the Hamiltonian dynamics, this paper researches the damping formation mechanism and damping injection control of VSG. First, based on the energy composition and dynamic characteristics of VSG, the differential equations system of VSG is established and is transformed into the generalized Hamiltonian system. Second, the effects of the three parameters of VSG, the damping coefficient D, active power droop coefficient, and time constant of excitation <i>T<sub>E</sub></i> on damping characteristics are researched from a dynamic perspective, and simulation research is carried out with an isolated microgrid. Lastly, the control design method of Hamiltonian structure corrections used to add the damping factor and design the equivalent control inject damping to improve the stability of the isolated microgrid. Research shows that the voltage and frequency stability of the isolated microgrid can be effectively improved by selecting three key parameters of VSG and damping injection control. The innovations of this paper are 1. The Hamiltonian model of the inverter is deduced and established by taking the inverter as a virtual generator. 2. Based on the Hamiltonian model, damping characteristics of inverter in the microgrid are studied. 3. Hamiltonian structure correction method is applied to the inverter, and equivalent damping injection is designed to improve the stability of the microgrid.
format	article
author	Yun Zeng Jing Qian Fengrong Yu Hong Mei Shige Yu
author_facet	Yun Zeng Jing Qian Fengrong Yu Hong Mei Shige Yu
author_sort	Yun Zeng
title	Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
title_short	Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
title_full	Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
title_fullStr	Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
title_full_unstemmed	Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory
title_sort	damping formation mechanism and damping injection of virtual synchronous generator based on generalized hamiltonian theory
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a2ce832f92ad4b5c80632bc8dbddf26e
work_keys_str_mv	AT yunzeng dampingformationmechanismanddampinginjectionofvirtualsynchronousgeneratorbasedongeneralizedhamiltoniantheory AT jingqian dampingformationmechanismanddampinginjectionofvirtualsynchronousgeneratorbasedongeneralizedhamiltoniantheory AT fengrongyu dampingformationmechanismanddampinginjectionofvirtualsynchronousgeneratorbasedongeneralizedhamiltoniantheory AT hongmei dampingformationmechanismanddampinginjectionofvirtualsynchronousgeneratorbasedongeneralizedhamiltoniantheory AT shigeyu dampingformationmechanismanddampinginjectionofvirtualsynchronousgeneratorbasedongeneralizedhamiltoniantheory
_version_	1718433000364965888

Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory

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