Transformer3WInput.java

/*
 * © 2021. TU Dortmund University,
 * Institute of Energy Systems, Energy Efficiency and Energy Economics,
 * Research group Distribution grid planning and operation
*/
package edu.ie3.datamodel.models.input.connector;

import static edu.ie3.util.quantities.PowerSystemUnits.PU;

import edu.ie3.datamodel.io.extractor.HasType;
import edu.ie3.datamodel.models.OperationTime;
import edu.ie3.datamodel.models.input.NodeInput;
import edu.ie3.datamodel.models.input.OperatorInput;
import edu.ie3.datamodel.models.input.connector.type.Transformer3WTypeInput;
import java.util.*;
import tech.units.indriya.quantity.Quantities;

/**
 * Describes a three winding transformer, that is connected to three {@link
 * edu.ie3.datamodel.models.input.NodeInput}s
 */
public class Transformer3WInput extends TransformerInput implements HasType {
  /** Type of this 3W transformer, containing default values for transformers of this kind */
  private final Transformer3WTypeInput type;
  /** The lower voltage node */
  private final NodeInput nodeC;
  /** Internal node of the transformers T equivalent circuit */
  private final NodeInput nodeInternal;

  /**
   * Constructor for an operated three winding transformer
   *
   * @param uuid of the input entity
   * @param id of the asset
   * @param operator of the asset
   * @param operationTime Time for which the entity is operated
   * @param nodeA The higher voltage node
   * @param nodeB The middle voltage node
   * @param nodeC The lower voltage node
   * @param parallelDevices overall amount of parallel transformers to automatically construct (e.g.
   *     parallelDevices = 2 will build a total of two transformers using the specified parameters)
   * @param type of 3W transformer
   * @param tapPos Tap Position of this transformer
   * @param autoTap true, if there is an automated regulation activated for this transformer
   */
  public Transformer3WInput(
      UUID uuid,
      String id,
      OperatorInput operator,
      OperationTime operationTime,
      NodeInput nodeA,
      NodeInput nodeB,
      NodeInput nodeC,
      int parallelDevices,
      Transformer3WTypeInput type,
      int tapPos,
      boolean autoTap) {
    this(
        uuid,
        id,
        operator,
        operationTime,
        nodeA,
        nodeB,
        nodeC,
        parallelDevices,
        type,
        tapPos,
        autoTap,
        false);
  }

  /**
   * Constructor for an operated three winding transformer that allows setting the internal node as
   * slack node. This is normally needed if a larger grid is split up into subgrids and the three
   * winding transformer is located in a subgrid that does not hold the highest voltage side of the
   * transformer (here: that not holds node A in its grid).
   *
   * <p>Then, the internal node becomes a virtual representation of a slack node for the grid and
   * allows for power flow calculations based on it's 'close-to-T-equivalent' representation
   *
   * @param uuid of the input entity
   * @param id of the asset
   * @param operator of the asset
   * @param operationTime Time for which the entity is operated
   * @param nodeA The higher voltage node
   * @param nodeB The middle voltage node
   * @param nodeC The lower voltage node
   * @param parallelDevices overall amount of parallel transformers to automatically construct (e.g.
   *     parallelDevices = 2 will build a total of two transformers using the specified parameters)
   * @param type of 3W transformer
   * @param tapPos Tap Position of this transformer
   * @param autoTap true, if there is an automated regulation activated for this transformer
   * @param internalNodeAsSlack true, if the internal node is a slack node, false otherwise
   */
  public Transformer3WInput(
      UUID uuid,
      String id,
      OperatorInput operator,
      OperationTime operationTime,
      NodeInput nodeA,
      NodeInput nodeB,
      NodeInput nodeC,
      int parallelDevices,
      Transformer3WTypeInput type,
      int tapPos,
      boolean autoTap,
      boolean internalNodeAsSlack) {
    this(
        uuid,
        id,
        operator,
        operationTime,
        nodeA,
        nodeB,
        nodeC,
        parallelDevices,
        type,
        tapPos,
        autoTap,
        new NodeInput(
            UUID.randomUUID(),
            "internal_node_" + id,
            operator,
            operationTime,
            Quantities.getQuantity(1d, PU),
            internalNodeAsSlack,
            null,
            nodeA.getVoltLvl(),
            nodeA.getSubnet()));
  }

  /**
   * Constructor for an operated, always on three winding transformer
   *
   * @param uuid of the input entity
   * @param id of the asset
   * @param nodeA The higher voltage node
   * @param nodeB The middle voltage node
   * @param nodeC The lower voltage node
   * @param parallelDevices overall amount of parallel transformers to automatically construct (e.g.
   *     parallelDevices = 2 will build a total of two transformers using the specified parameters)
   * @param type of 3W transformer
   * @param tapPos Tap Position of this transformer
   * @param autoTap true, if there is an automated regulation activated for this transformer
   */
  public Transformer3WInput(
      UUID uuid,
      String id,
      NodeInput nodeA,
      NodeInput nodeB,
      NodeInput nodeC,
      int parallelDevices,
      Transformer3WTypeInput type,
      int tapPos,
      boolean autoTap) {
    super(uuid, id, nodeA, nodeB, parallelDevices, tapPos, autoTap);
    this.type = type;
    this.nodeC = nodeC;
    this.nodeInternal =
        new NodeInput(
            UUID.randomUUID(),
            "internal_node_" + id,
            getOperator(),
            getOperationTime(),
            Quantities.getQuantity(1d, PU),
            false,
            null,
            nodeA.getVoltLvl(),
            nodeA.getSubnet());
  }

  /**
   * Private constructor to be used for create copies using {@link Transformer3WInputCopyBuilder}
   *
   * @param uuid of the input entity
   * @param id of the asset
   * @param operator of the asset
   * @param operationTime Time for which the entity is operated
   * @param nodeA The higher voltage node
   * @param nodeB The middle voltage node
   * @param nodeC The lower voltage node
   * @param parallelDevices overall amount of parallel transformers to automatically construct (e.g.
   *     parallelDevices = 2 will build a total of two transformers using the specified parameters)
   * @param type of 3W transformer
   * @param tapPos Tap Position of this transformer
   * @param autoTap true, if there is an automated regulation activated for this transformer
   */
  private Transformer3WInput(
      UUID uuid,
      String id,
      OperatorInput operator,
      OperationTime operationTime,
      NodeInput nodeA,
      NodeInput nodeB,
      NodeInput nodeC,
      int parallelDevices,
      Transformer3WTypeInput type,
      int tapPos,
      boolean autoTap,
      NodeInput internalNode) {
    super(uuid, operationTime, operator, id, nodeA, nodeB, parallelDevices, tapPos, autoTap);
    this.type = type;
    this.nodeC = nodeC;
    this.nodeInternal = internalNode;
  }

  @Override
  public Transformer3WTypeInput getType() {
    return type;
  }

  /** @return the node with the highest voltage level */
  @Override
  public NodeInput getNodeA() {
    return super.getNodeA();
  }

  /** @return the node with the "medium" voltage level */
  @Override
  public NodeInput getNodeB() {
    return super.getNodeB();
  }

  /** @return the node with the lowest voltage level */
  public NodeInput getNodeC() {
    return nodeC;
  }

  /** @return The internal node of the T equivalent circuit */
  public NodeInput getNodeInternal() {
    return nodeInternal;
  }

  public Transformer3WInputCopyBuilder copy() {
    return new Transformer3WInputCopyBuilder(this);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof Transformer3WInput that)) return false;
    if (!super.equals(o)) return false;
    return Objects.equals(type, that.type) && Objects.equals(nodeC, that.nodeC);
  }

  @Override
  public int hashCode() {
    return Objects.hash(super.hashCode(), type, nodeC);
  }

  @Override
  public String toString() {
    return "Transformer3WInput{"
        + "uuid="
        + getUuid()
        + ", id="
        + getId()
        + ", operationTime="
        + getOperationTime()
        + ", operator="
        + getOperator().getUuid()
        + ", noOfParallelDevices="
        + getParallelDevices()
        + ", nodeA="
        + getNodeA().getUuid()
        + ", nodeB="
        + getNodeB().getUuid()
        + ", nodeC="
        + nodeC.getUuid()
        + ", type="
        + type.getUuid()
        + '}';
  }

  @Override
  public List<NodeInput> allNodes() {
    return List.of(getNodeA(), getNodeB(), nodeC);
  }

  /**
   * A builder pattern based approach to create copies of {@link Transformer3WInput} entities with
   * altered field values. For detailed field descriptions refer to java docs of {@link
   * Transformer3WInput}
   *
   * @version 0.1
   * @since 05.06.20
   */
  public static class Transformer3WInputCopyBuilder
      extends TransformerInputCopyBuilder<Transformer3WInputCopyBuilder> {

    private Transformer3WTypeInput type;
    private NodeInput nodeC;
    private boolean internSlack;
    private final NodeInput internalNode;

    private Transformer3WInputCopyBuilder(Transformer3WInput entity) {
      super(entity);
      this.type = entity.getType();
      this.nodeC = entity.getNodeC();
      this.internalNode = entity.getNodeInternal();
      this.internSlack = entity.getNodeInternal().isSlack();
    }

    @Override
    public Transformer3WInput build() {
      return new Transformer3WInput(
          getUuid(),
          getId(),
          getOperator(),
          getOperationTime(),
          super.getNodeA(),
          super.getNodeB(),
          nodeC,
          getParallelDevices(),
          type,
          getTapPos(),
          isAutoTap(),
          internalNode.copy().slack(internSlack).build());
    }

    public Transformer3WInputCopyBuilder type(Transformer3WTypeInput type) {
      this.type = type;
      return this;
    }

    public Transformer3WInputCopyBuilder nodeC(NodeInput nodeC) {
      this.nodeC = nodeC;
      return this;
    }

    public Transformer3WInputCopyBuilder internalSlack(boolean internalNodeIsSlack) {
      this.internSlack = internalNodeIsSlack;
      return this;
    }

    @Override
    protected Transformer3WInputCopyBuilder thisInstance() {
      return this;
    }
  }
}