ACTopology#

Common Parameters: u, name

Common Variables: a, v

Available models: Bus

Bus#

AC Bus model.

Power balance equation have the form of load - injection = 0. Namely, load is positively summed, while injections are negative.

Parameters#

Name

Symbol

Description

Default

Unit

Properties

idx

unique device idx

u

\(u\)

connection status

1

bool

name

device name

Vn

\(V_n\)

AC voltage rating

110

kV

non_zero

vmax

\(V_{max}\)

Voltage upper limit

1.100

p.u.

vmin

\(V_{min}\)

Voltage lower limit

0.900

p.u.

v0

\(V_0\)

initial voltage magnitude

1

p.u.

non_zero

a0

\(\theta_0\)

initial voltage phase angle

0

rad

xcoord

x coordinate (longitude)

0

ycoord

y coordinate (latitude)

0

area

Area code

zone

Zone code

owner

Owner code

Variables#

Name

Symbol

Type

Description

Unit

Properties

a

\(\theta\)

Algeb

voltage angle

rad

v_str

v

\(V\)

Algeb

voltage magnitude

p.u.

v_str

Initialization Equations#

Name

Symbol

Type

Initial Value

a

\(\theta\)

Algeb

\(\theta_{0} \cdot \left(1 - z_{flat}\right) + 1.0 \cdot 10^{-8} z_{flat}\)

v

\(V\)

Algeb

\(V_{0} \cdot \left(1 - z_{flat}\right) + z_{flat}\)

Algebraic Equations#

Name

Symbol

Type

RHS of Equation "0 = g(x, y)"

a

\(\theta\)

Algeb

\(0\)

v

\(V\)

Algeb

\(0\)

Config Fields in [Bus]

Option

Symbol

Value

Info

Accepted values

allow_adjust

1

allow adjusting upper or lower limits

(0, 1)

adjust_lower

0

adjust lower limit

(0, 1)

adjust_upper

1

adjust upper limit

(0, 1)

flat_start

\(z_{flat}\)

0

flat start for voltages

(0, 1)