Small-Signal Stability Research of Grid-Connected Virtual Synchronous Generators

نویسندگان

چکیده

The virtual synchronous generator (VSG) technique is used to simulate the external characteristics of a (SG) provide certain damping and inertia power systems. However, it may easily cause low-frequency oscillation system. We studied small-signal stability grid-connected generator. Firstly, models single-VSG multi-VSG systems were established. Subsequently, system eigenvalues obtained by solving state matrix, modes analyzed. eigenvalue analysis method was analyze impacts parameter changes, such as moment inertia, coefficient, line resistance, inductance, on stability. Finally, our conclusions verified numerous simulation models.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Small Signal Stability Analysis of Synchronous Generators Connected to Infinite Bus

A synchronous generator may sometimes be able to withstand a large impact but it may fail to retain synchronism under a small impact due to growing oscillations, leading to instability. This is called dynamic instability. It occurs for specific operating conditions and network configurations, particularly in presence of fastacting excitation control. The paper presents techniques of small signa...

متن کامل

anti-islanding protection of grid connected distributed generators

a critical protection requirement for grid connected distributed generators (dg) is anti-islanding protection. in this paper, a new islanding detection method for any possible network loading is proposed based on utilizing and combining various system parameter indices. in order to secure the detection of islanding, eight intentional disturbances are imposed to the system under study in which t...

متن کامل

Small-signal Stability Analysis and Vsi Controller Design for Microgrids Operating in Grid-connected Mode

A novel approach for VSI with an LCL output filter controller design for microgrids operating in grid-connected mode is presented in this paper. The controller structure is based on a multiloop control configuration in which the inner control loop is responsible for current regulation and the outer control loop generates the reference currents based on preset active and reactive power injection...

متن کامل

Modeling of Grid-connected Superconducting Synchronous Machines

We developed an accurate, efficient and flexible modeling method for the steady-state and transient analysis of grid-connected superconducting synchronous machines. On the one hand, the machine flux linkages and electromagnetic torque as function of operational parameters are obtained from static finite element analysis and stored in lookup tables. On the other hand, the machine is represented ...

متن کامل

Transient Stability Improvement by Plugging Mode Operation of Grid Connected Squirrel Cage Induction Generators

Recently a new and simple method to mitigate the transient instability of squirrel cage induction generators (IG) without using any additional equipment. The majority of the fixed speed wind turbines are equipped with squirrel cage IG and ac connected to the power system. During a fault in power system, voltage and rotor speed instability may occur, especially when the strength of the system co...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Energies

سال: 2022

ISSN: ['1996-1073']

DOI: https://doi.org/10.3390/en15197158