AC_source Class Reference

Ideal AC voltage source with added series impedance. More...

#include <AC_source.h>

Inheritance diagram for AC_source:

Collaboration diagram for AC_source:

Public Member Functions
	AC_source (const std::string &symbol, const std::string &location, int pins, double V, DenseMatrix Z)
	Construct an AC source with a dense impedance matrix.
	AC_source (const std::string &symbol, const std::string &location, int pins, double V, const std::vector< double > &Z)
	Construct an AC source with a vector of per-phase impedances.
	AC_source (const std::string &symbol, const std::string &location, int pins, double V, const double Z)
	Construct an AC source with a scalar series impedance.
	~AC_source ()
void	writeMNAmatrix (SymEngine::DenseMatrix &, std::unordered_map< Bus *, int > &, int, std::map< Element *, std::vector< RCP< const Basic > > > &) override
	Stamp this element into the symbolic MNA matrix (override in derived classes).
std::vector< MatrixXcd >	simulateInputStep (const std::vector< MatrixXcd > &states, int nKeep) const override
	Simulate a step response given input states (override in dynamic elements).
void	printElementValues () override
	Print extended element-specific values (override in derived classes).
Public Member Functions inherited from Source_base
	Source_base (const std::string &symbol, const std::string &location, int pins)
	Construct a source with equal input and output pin counts.
	~Source_base ()
void	computePowerFlow (std::map< std::string, double > &branchData, std::map< std::string, double > &globalParams) const override
	Compute branch power-flow quantities (override in derived classes).
double	getZsrc () const
double	getVg () const
Public Member Functions inherited from Element
	Element (const std::string &symbol, const std::string &location, int inputPins, int outputPins)
	Construct an element with symbol, location, and pin counts.
virtual	~Element ()
	Virtual destructor for derived-class cleanup.
int	getInputPins () const
	Get the number of input pins/phases.
int	getOutputPins () const
	Get the number of output pins/phases.
void	setInputPins (int pins)
	Set the number of input pins/phases.
void	setOutputPins (int pins)
	Set the number of output pins/phases.
void	setTransformation (bool flag)
	Enable or disable coordinate transformation for this element.
std::string	getElementSymbol () const
	Get the element type symbol.
std::vector< Bus * >	getBuses ()
	Collect all buses connected to this element.
int	getBusIndex (Bus *bus)
	Find the terminal index associated with a given bus.
Bus *	getOtherBus (Bus *)
	Get the bus connected at the opposite terminal from a given bus.
const std::map< Bus *, int > &	getConnections () const
	Const access to the bus-to-terminal connection map.
std::map< Bus *, int >	getConnections ()
	Copy of the bus-to-terminal connection map.
string	getElementLocation () const
	Get the element's grid or partition location label.
void	attachBus (Bus *, int)
	Attach a bus to a specific element terminal.
void	printElementInfo () const
	Print basic element metadata (symbol, input/output pin counts).
void	writeFile (double start_frequency, double end_frequency, int number_of_points)
	Write Y-parameter matrix samples over a frequency sweep to a file.
void	plotYParameters (double start_frequency, double end_frequency, int number_of_points)
	Plot Y-parameter matrix entries versus frequency.
virtual void	plotEigenvalues ()
	Plot eigenvalues of the element model (override in state-space elements).
virtual void	plotParticipationFactors ()
	Plot participation factors (override in state-space elements).
virtual std::vector< std::vector< complex< double > > >	compute_y_parameters (double frequency)
	Compute complex Y-parameters at a single frequency.
virtual DenseMatrix	get_y_parameters ()
	Get the symbolic or stored Y-parameter matrix.
virtual std::vector< std::vector< complex< double > > >	apply_transformation (std::vector< std::vector< complex< double > > > &Y1, std::vector< std::vector< complex< double > > > &Y2)
	Apply a coordinate or coupling transformation to Y-parameter blocks.
virtual int	getNumberOfInternalStates () const
	Number of internal state variables for dynamic elements.
virtual int	getNumberOfPlantStates () const
	Number of plant states exposed for simulation (may differ from internal states).
virtual std::vector< RCP< const Basic > >	getVirtualInputSymbols () const
	Return symbolic names for virtual inputs used in stamping.
virtual map_basic_basic	getParameterSubstitutions () const
	Return parameter substitutions for symbolic evaluation.
std::map< std::string, double >	getOPFInfo () const
	Get stored OPF-related metadata for this element.
void	setOPFInfo (std::map< std::string, double > &info)
	Store OPF-related metadata for this element.

Additional Inherited Members
Protected Attributes inherited from Source_base
vector< double >	Zsrc = {}
vector< double >	V = {}
vector< double >	theta = {}
double	P
double	Q
double	P_min
double	P_max
double	Q_min
double	Q_max
Protected Attributes inherited from Element
bool	transformation = false
std::string	element_symbol
std::string	element_location
int	input_pins
int	output_pins
std::map< Bus *, int >	connections
std::map< std::string, double >	element_OPF_info = {}
DenseMatrix	Y_matrix

Detailed Description

Ideal AC voltage source with added series impedance.

Supports single- or multi-phase configuration. Power-flow data (voltage magnitude, phase shift, P/Q limits) is supplied after construction.

Constructor & Destructor Documentation

AC_source() [1/3]

AC_source::AC_source	(	const std::string &	symbol,
		const std::string &	location,
		int	pins,
		double	V,
		DenseMatrix	Z
	)

Construct an AC source with a dense impedance matrix.

Parameters

symbol	Element identifier.
location	Network area or location string.
pins	Number of pins (phases).
V	Voltage magnitude.
Z	Series impedance matrix.

References j, omega, substitute_symbol(), Source_base::V, Element::Y_matrix, and Source_base::Zsrc.

AC_source() [2/3]

AC_source::AC_source	(	const std::string &	symbol,
		const std::string &	location,
		int	pins,
		double	V,
		const std::vector< double > &	Z
	)

Construct an AC source with a vector of per-phase impedances.

Parameters

symbol	Element identifier.
location	Network area or location string.
pins	Number of pins (phases).
V	Voltage magnitude.
Z	Series impedance values in ohms.

References j, Source_base::V, Element::Y_matrix, and Source_base::Zsrc.

AC_source() [3/3]

AC_source::AC_source	(	const std::string &	symbol,
		const std::string &	location,
		int	pins,
		double	V,
		const double	Z
	)

Construct an AC source with a scalar series impedance.

Parameters

symbol	Element identifier.
location	Network area or location string.
pins	Number of pins (phases).
V	Voltage magnitude.
Z	Series impedance in ohms.

References j, Source_base::V, Element::Y_matrix, and Source_base::Zsrc.

~AC_source()

AC_source::~AC_source

(

)

Member Function Documentation

printElementValues()

void AC_source::printElementValues ( )

overridevirtual

Print extended element-specific values (override in derived classes).

Prints the symbolic Y-parameter matrix of the element to the console.

Reimplemented from Element.

References Element::printElementInfo().

simulateInputStep()

std::vector< MatrixXcd > AC_source::simulateInputStep ( const std::vector< MatrixXcd > &  states, int  nKeep  ) const

overridevirtual

Simulate a step response given input states (override in dynamic elements).

Parameters

states	Input state trajectories per channel.
nKeep	Number of states to retain in the output.

Returns

Simulated state matrices; empty for static elements.

Reimplemented from Element.

References Source_base::V.

writeMNAmatrix()

void AC_source::writeMNAmatrix ( SymEngine::DenseMatrix &  , std::unordered_map< Bus *, int > &  , int  , std::map< Element *, std::vector< RCP< const Basic > > > &    )

overridevirtual

Stamp this element into the symbolic MNA matrix (override in derived classes).

Parameters

mna	Global MNA matrix being assembled.
busIndexMap	Maps buses to global node indices.
offset	Current matrix offset for stamping.
elementSymbols	Per-element symbolic substitution table.

Reimplemented from Element.

References addSym(), Element::connections, Element::getElementSymbol(), and Element::input_pins.

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The documentation for this class was generated from the following files:

• harmony/src/Elements/Source/AC_source.h
• harmony/src/Elements/Source/AC_source.cpp