Struct InertiaEstimator 

pub struct InertiaEstimator { /* private fields */ }

Online inertia estimator from frequency event recordings.

Uses the swing equation:

H = -ΔP · f₀ / (2 · S_base · ROCOF)

Implementations

impl InertiaEstimator

pub fn new() -> Self

Create an empty InertiaEstimator.

pub fn add_measurement(&mut self, m: FrequencyMeasurement)

Append a frequency measurement.

pub fn estimate_inertia( &self, power_imbalance_mw: f64, system_mva: f64, ) -> Result<f64, String>

Estimate inertia H [s] using all stored measurements.

• power_imbalance_mw — known or estimated MW disturbance.
• system_mva — system rating [MVA].

Returns Err when insufficient data is available.

pub fn estimate_from_event_window( &self, start_s: f64, end_s: f64, power_imbalance_mw: f64, system_mva: f64, ) -> Result<f64, String>

Estimate inertia [s] restricted to a time window [start_s, end_s].

• start_s — window start [s].
• end_s — window end [s].
• power_imbalance_mw — known MW disturbance.
• system_mva — system rating [MVA].

pub fn clear(&mut self)

Remove all stored measurements.

pub fn len(&self) -> usize

Number of stored measurements.

pub fn is_empty(&self) -> bool

True when no measurements are stored.

Trait Implementations

impl Debug for InertiaEstimator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for InertiaEstimator

fn default() -> InertiaEstimator

Returns the “default value” for a type.