RotatingMachineDynamics Class
Abstract parent class for all synchronous and asynchronous machine standard models.
Diagram
Свойства (6)
| ID | Тип | Описание | Количество |
|---|---|---|---|
| damping | Float | Damping torque coefficient (<i>D</i>) (>= 0). A proportionality constant that, when multiplied by the angular velocity of the rotor poles with respect to the magnetic field (frequency), results in the damping torque. This value is often zero when the sources of damping torques (generator damper windings, load damping effects, etc.) are modelled in detail. Typical value = 0. | 1..1 |
| inertia | Seconds | Inertia constant of generator or motor and mechanical load (<i>H</i>) (> 0). This is the specification for the stored energy in the rotating mass when operating at rated speed. For a generator, this includes the generator plus all other elements (turbine, exciter) on the same shaft and has units of MW x s. For a motor, it includes the motor plus its mechanical load. Conventional units are PU on the generator MVA base, usually expressed as MW x s / MVA or just s. This value is used in the accelerating power reference frame for operator training simulator solutions. Typical value = 3. | 1..1 |
| saturationFactor | Float | Saturation factor at rated terminal voltage (<i>S1</i>) (>= 0). Not used by simplified model. Defined by defined by <i>S</i>(<i>E1</i>) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,02. | 0..1 |
| saturationFactor120 | Float | Saturation factor at 120% of rated terminal voltage (<i>S12</i>) (>= RotatingMachineDynamics.saturationFactor). Not used by the simplified model, defined by <i>S</i>(<i>E2</i>) in the SynchronousMachineSaturationParameters diagram. Typical value = 0,12. | 0..1 |
| statorLeakageReactance | PU | Stator leakage reactance (<i>Xl</i>) (>= 0). Typical value = 0,15. | 1..1 |
| statorResistance | PU | Stator (armature) resistance (<i>Rs</i>) (>= 0). Typical value = 0,005. | 1..1 |
Дочерние классы (2)
| Класс | Описание |
|---|---|
| cim:AsynchronousMachineDynamics |
Asynchronous machine whose behaviour is described by reference to a standard model expressed in either time constant reactance form or equivalent circuit form <font color="#0f0f0f">or by definition of a user-defined model.</font> Parameter details: <ol> <li>Asynchronous machine parameters such as <i>Xl, Xs,</i> etc. are actually used as inductances in the model, but are commonly referred to as reactances since, at nominal frequency, the PU values are the same. However, some references use the symbol <i>L</i> instead of <i>X</i>.</li> </ol> |
| cim:SynchronousMachineDynamics |
Synchronous machine whose behaviour is described by reference to a standard model expressed in one of the following forms: - simplified (or classical), where a group of generators or motors is not modelled in detail; - detailed, in equivalent circuit form; - detailed, in time constant reactance form; or <font color="#0f0f0f">- by definition of a user-defined model.</font> <font color="#0f0f0f">It is a common practice to represent small generators by a negative load rather than by a dynamic generator model when performing dynamics simulations. In this case, a SynchronousMachine in the static model is not represented by anything in the dynamics model, instead it is treated as an ordinary load.</font> <font color="#0f0f0f">Parameter details:</font> <ol> <li><font color="#0f0f0f">Synchronous machine parameters such as <i>Xl, Xd, Xp</i> etc. are actually used as inductances in the models,</font> but are commonly referred to as reactances since, at nominal frequency, the PU values are the same. However, some references use the symbol <i>L</i> instead of <i>X</i>.</li> </ol> |
Информация о классе
- ID
cim:RotatingMachineDynamics- Тип
- Class
- Наследует
- cim:DynamicsFunctionBlock
- Свойств
- 6