THE STUDY OF THE AUTONOMOUS SYNCHRONOUS GENERATOR MODES
| Autor: | V. S. Safaryan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
self-excitation
lcsh:Hydraulic engineering автономный синхронный генератор самовозбуждение Computer science Stator Energy Engineering and Power Technology стационарный режим transition process Angular velocity Permanent magnet synchronous generator law.invention Generator (circuit theory) external influences lcsh:TC1-978 Control theory law переходный процесс generalized vector static sta- bility математическая модель Renewable Energy Sustainability and the Environment Rotor (electric) autonomous synchronous generator Hydraulic engineering Engineering (General). Civil engineering (General) Stationary point статическая устойчивость обобщенный вектор Nuclear Energy and Engineering lcsh:TA1-2040 внешние воздействия Equivalent circuit steady-state mode TA1-2040 lcsh:Engineering (General). Civil engineering (General) TC1-978 Synchronous motor mathematical model |
| Zdroj: | Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 60, Iss 5, Pp 433-445 (2017) |
| ISSN: | 2414-0341 1029-7448 |
| DOI: | 10.21122/1029-7448-2017-60-5-433-445 |
| Popis: | The importance of the problem of the static stability of the stationary mode of the power system for its operation is extremely high. The investigation of the static stability of the power system is a subject of a number of works, but the problems of static stability of the stationary points of an autonomous synchronous generator are given little attention. The article considers transient and resonant (stationary) modes of the generator under active-inductive and active-capacitive loads. Mathematical model of transients in a natural form and in the coordinate system d, q are plotted. It is discovered that the mathematical model of the transition process of an autonomous synchronous generator is identical to the mathematical model of the transition process of the synchronous machine under three-phase short circuit. Electromagnetic transients of an autonomous synchronous generator are described by a system of linear autonomous differential equations with constant coefficients. However, the equivalent circuit of a generator contains dependent sources. We investigated the stability of stationary motion of an autonomous synchronous generator at a given angular velocity of rotation of the rotor. The condition for the existence and stability of stationary points of an autonomous synchronous generator is derived. The condition for the existence of stationary points of such a generator does not depend on the active load resistance and stator windings, and inductance of the rotor. The determining of stationary points of the generator is reduced to finding roots of a polynomial of the fourth degree. The graphs of electromagnetic torque dependencies on the angular velocity of rotation of the rotor (mechanical characteristics) are plotted. The equivalent circuits, corresponding to the equations of the transition process of an autonomous synchronous generator, are featured as well. |
| Databáze: | OpenAIRE |
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