Resistor

Single-phase ideal resistor. Implements Ohm's law v = R i. The most common passive element — use for damping, sensing, and load modelling.

Aliases: SimCompElecResistor, CSim_comp_elec_res

Category: Single-Phase / Passive

Keywords: 1-phase, 1-ph, 1 ph, 1ph, single, single-phase, single phase, phase, ph, R, ohm, Ω, res, passive

Ports

Name	Direction	Value type	Notes
N1	electrical	double
N2	electrical	double

Parameters

Config

Name	Label	Type	Default	Units	Description
resistance	R	double	1	Ohms (Ω, kΩ, pu, S)	Resistance value. Pick a unit from the dropdown; pu / Siemens conversions read the bases from the Units tab.
measure_current	Measure current	enum (Off / On)	0	—	Emit branch current as a simulator observable.

Current Monitoring

Name	Label	Type	Default	Units	Description
current_name	Current name	string	I	—	Observable id for the measured branch current. Change the default `I` when you have multiple measured components — duplicate ids collide.

Units

Name	Label	Type	Default	Units	Description
S_base	S_base (MVA)	double	100	—	System base apparent power in MVA. Used by `pu` impedance / admittance conversions in this component's `computations` block.
V_base	V_base (kV)	double	230	—	Base RMS line-to-line voltage in kV. Used by `pu` impedance / admittance conversions in this component's `computations` block.

Observables

Signal	Type	Default name	Enable	Description
branchCurrent	signal	from current_name	measure_current	Branch current through the resistor (A).

Used in samples

• Buck
• Full Bridge Rectifier V2
• Half Bridge Rectifier
• Pwm Power Control
• Pwm Subsystem
• Rc Charge
• Rl Transient
• Rlc Series
• Transmission Line Pi
• Voltage Divider

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Implemented in C++ class SimCompElecResistor (components/electrical/sim_comp_elec_resistor/sim_comp_elec_resistor.h).