Module ml4opf.layers.voltagedifference_repair

Classes

class VoltageDifferenceRepair (branch_incidence_matrix: torch.Tensor, slackbus_idx: int | None = None)

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Repair voltage angle differences to voltage angles using least-squares.

Initialize VoltageDifferenceRepair module.

Args

branch_incidence_matrix : Tensor

Branch incidence matrix. (nbranch, nbus)

slackbus_idx : Optional[int]

Index of slack bus.

Ancestors

• torch.nn.modules.module.Module

Static methods

def repair(dva: torch.Tensor, branch_incidence_matrix: torch.Tensor, driver: str = 'gelsy') ‑> torch.Tensor

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Convert angle differences per-branch to per-bus voltage angles using least-squares.

Solves the problem $\min \| A \theta - \Delta \|_2^2$ for $\theta$, where $A$ is the branch incidence matrix.

Args

dva : Tensor

Angle differences per branch (( \Delta )). (batch_size, nbranch)

Returns

Tensor

Voltage angles per bus (( \theta )). (batch_size, nbus)

Methods

def forward(self, dva: torch.Tensor, driver: str = 'gelsy') ‑> torch.Tensor

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Repair voltage angle differences to voltage angles using least-squares.

Args

dva : Tensor

Voltage angle differences. (batch_size, nbranch)

driver : str

Least-squares driver. Default: "gelsy".

Returns

Tensor

Voltage angles. (batch_size, nbus)