DG#

Distributed generation (small-scale).

See ANDES Documentation SynGen here for the notes on replacing StaticGen and setting the power ratio parameters.

References#

  1. ANDES Documentation, SynGen, https://andes.readthedocs.io/en/stable/groupdoc/SynGen.html#syngen

Common Parameters: u, name, idx, bus, fn

Available models: PVD1, ESD1, EV1, EV2

PVD1#

Distributed PV model, revised from ANDES PVD1 model for scheduling.

Following parameters are omitted from the original dynamic model: fn, busf, xc, pqflag, igreg, v0, v1, dqdv, fdbd, ddn, ialim, vt0, vt1, vt2, vt3, vrflag, ft0, ft1, ft2, ft3, frflag, tip, tiq, recflag.

References#

  1. ANDES Documentation, PVD1, https://andes.readthedocs.io/en/stable/groupdoc/DG.html#pvd1

Parameters#

Name

Symbol

Description

Default

Unit

Properties

idx

unique device idx

u

\(u\)

connection status

1

bool

name

device name

bus

interface bus id (place holder)

mandatory

gen

static generator index

mandatory

Sn

\(S_n\)

device MVA rating

100

MVA

gammap

\(\gamma_p\)

Ratio of ESD1.pref0 w.r.t to that of static PV

1

gammaq

\(\gamma_q\)

Ratio of ESD1.qref0 w.r.t to that of static PV

1

ESD1#

Distributed energy storage model, revised from ANDES ESD1 model for scheduling.

Following parameters are omitted from the original dynamic model: fn, busf, xc, pqflag, igreg, v0, v1, dqdv, fdbd, ddn, ialim, vt0, vt1, vt2, vt3, vrflag, ft0, ft1, ft2, ft3, frflag, tip, tiq, recflag.

References#

  1. ANDES Documentation, ESD1, https://andes.readthedocs.io/en/stable/groupdoc/DG.html#esd1

Parameters#

Name

Symbol

Description

Default

Unit

Properties

idx

unique device idx

u

\(u\)

connection status

1

bool

name

device name

bus

interface bus id (place holder)

mandatory

gen

static generator index

mandatory

Sn

\(S_n\)

device MVA rating

100

MVA

gammap

\(\gamma_p\)

Ratio of ESD1.pref0 w.r.t to that of static PV

1

gammaq

\(\gamma_q\)

Ratio of ESD1.qref0 w.r.t to that of static PV

1

SOCmin

\(SOC_{min}\)

Minimum required value for SOC in limiter

0.100

SOCmax

\(SOC_{max}\)

Maximum allowed value for SOC in limiter

0.900

SOCinit

\(SOC_{init}\)

Initial state of charge

0.800

SOCend

\(SOC_{end}\)

Target state of charge at the end of the period

0.100

En

\(E_n\)

Rated energy capacity

100

MWh

EtaC

\(Eta_C\)

Efficiency during charging

1

EtaD

\(Eta_D\)

Efficiency during discharging

1

cesdc

\(c_{c,ESD}\)

Charging cost

0.100

$/p.u.*h

cesdd

\(c_{d,ESD}\)

Discharging cost

0.100

$/p.u.*h

tdc

\(t_{dc}\)

Minimum charging duration

0

h

tdd

\(t_{dd}\)

Minimum discharging duration

0

h

tdc0

\(t_{dc0}\)

Initial charging time

0

h

tdd0

\(t_{dd0}\)

Initial discharging time

0

h

ucd0

\(u_{cd0}\)

Solved charging decision, placeholder

0

udd0

\(u_{dd0}\)

Solved discharging decision, placeholder

0

EV1#

Aggregated EV model for scheduling at transmission level.

For co-simulation with ANDES, it is expected to be used in conjunction with the dynamic models EV1 or EV2.

References#

  1. J. Wang et al., "Electric Vehicles Charging Time Constrained Deliverable Provision of Secondary Frequency Regulation," in IEEE Transactions on Smart Grid, vol. 15, no. 4, pp. 3892-3903, July 2024, doi: 10.1109/TSG.2024.3356948.

  2. ANDES Documentation, EV1, https://andes.readthedocs.io/en/stable/groupdoc/DG.html#ev1

Parameters#

Name

Symbol

Description

Default

Unit

Properties

idx

unique device idx

u

\(u\)

connection status

1

bool

name

device name

bus

interface bus idx

mandatory

gen

static generator index

mandatory

Sn

\(S_n\)

device MVA rating

100

MVA

gammap

\(\gamma_P\)

P ratio of linked static gen

1

gammaq

\(\gamma_Q\)

Q ratio of linked static gen

1

N

\(N\)

number of related EVs

10000

EV2#

Alias for EV1.

Parameters#

Name

Symbol

Description

Default

Unit

Properties

idx

unique device idx

u

\(u\)

connection status

1

bool

name

device name

bus

interface bus idx

mandatory

gen

static generator index

mandatory

Sn

\(S_n\)

device MVA rating

100

MVA

gammap

\(\gamma_P\)

P ratio of linked static gen

1

gammaq

\(\gamma_Q\)

Q ratio of linked static gen

1

N

\(N\)

number of related EVs

10000