Template Class Bus

Inheritance Relationships

Base Type

Class Documentation

template<typename scalar_type, typename index_type>
class Bus : public GridKit::PhasorDynamics::BusBase<scalar_type, index_type>

Implementation of a PQ bus.

Voltage V and phase theta are variables in PQ bus model. Active and reactive power, P and Q, are residual components.

Public Functions

virtual int setFault(bool status, RealT R, RealT X) final override

Apply (status true) or clear a fault to ground with impedance R + jX.

virtual int allocate() final override

Allocate all internal memory used by the model.

Post:

Changing the model by changing its internal topology (i.e. size(), nnz(), sparsity pattern in getCsrJacobian(), etc.) may invalidate the model until allocate() is called again. Calling any function that requires allocate() to be called in between modifying the model and reallocating may invoke undefined behaviour.

virtual int tagDifferentiable() final override

Fill the tag() vector with proper indicators.

Note

For some models, this may be a no-op, and the vector returned by tag() will still be empty.

Pre:

allocate() must have been called.

virtual int setAbsoluteTolerance(RealT rel_tol) final override

Compute the absolute tolerance for each variable in the model.

This represents a “noise” level close to zero for which pure relative error cannot be used.

Parameters:

rel_tol – The relative tolerance which can be used to pick the absolute tolerance.

Returns:

int 0 if successful, non-zero otherwise.

virtual int evaluateResidual() final override

Evaluate the model’s residual function.

For models which can be appropriately modeled in semi-explicit form, this will evaluate

\[F(t, y, \dot{y}) = f(t,y) - M \dot{y},\]
where
\[M\]
is the mass matrix. For models which can be modeled in Hessenberg form,
\[M\]
should be a simple indicator function for if the variable is differential (if
\[\dot{y}\]
appears in its equation). This indicator should be given by tag().

inline virtual BusTypeT BusType() const final override

Pure virtual function, returns bus type (DEFAULT or SLACK).