Sensitivity analysis: add new variables and functions (#2484)

Signed-off-by: Anne Tilloy <anne.tilloy@rte-france.com>

sensitivity-analysis-api/src/main/java/com/powsybl/sensitivity/SensitivityFunctionType.java

@@ -17,6 +17,9 @@
  *     <li>{@link #BRANCH_CURRENT_1} and {@link #BRANCH_CURRENT_2} if you want to monitor the current in A of a network branch (lines,
  * two windings transformer, dangling lines, etc.). Use 1 for side 1 and use 2 for side 2. In case of a three windings transformer,
  * use {@link #BRANCH_CURRENT_3} to monitor the current in A of the leg 3 (network side).</li>
+ *     <li>{@link #BRANCH_REACTIVE_POWER_1} and {@link #BRANCH_REACTIVE_POWER_2} if you want to monitor the reactive power in MVar of a network branch (lines,
+ * two windings transformer, dangling lines, etc.). Use 1 for side 1 and use 2 for side 2. In case of a three windings transformer,
+ * use {@link #BRANCH_REACTIVE_POWER_3} to monitor the reactive power in MVar of the leg 3 (network side).</li>
  *     <li>{@link #BUS_VOLTAGE} if you want to monitor the voltage in KV of a specific network bus.</li>
  * </ul>
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
@@ -36,14 +39,20 @@ public enum SensitivityFunctionType {
     BRANCH_ACTIVE_POWER_1(1),
     /** in A */
     BRANCH_CURRENT_1(1),
+    /** in MVar */
+    BRANCH_REACTIVE_POWER_1(1),
     /** in MW */
     BRANCH_ACTIVE_POWER_2(2),
     /** in A */
     BRANCH_CURRENT_2(2),
+    /** in MVar */
+    BRANCH_REACTIVE_POWER_2(2),
     /** in MW */
     BRANCH_ACTIVE_POWER_3(3),
     /** in A */
     BRANCH_CURRENT_3(3),
+    /** in MVar */
+    BRANCH_REACTIVE_POWER_3(3),
     /** in kV */
     BUS_VOLTAGE;
 

sensitivity-analysis-api/src/main/java/com/powsybl/sensitivity/SensitivityVariableType.java

@@ -14,6 +14,8 @@
  *     <li>Use {@link #INJECTION_ACTIVE_POWER} to model a change on the production of a generator or on a group of generators, on
  * the consumption of a load or on a group of loads or on GLSK (for Generation and Load Shift keys) that describes a
  * linear combination of power injection shifts on generators and loads. The variable increase is in MW.</li>
+ *     <li>Use {@link #INJECTION_REACTIVE_POWER} to model a change on the reactive production of a generator or on
+ * the reactive consumption of a load. The variable increase is in MVar.</li>
  *     <li>Use {@link #TRANSFORMER_PHASE} to model the change of the tap position of a phase tap changer of a two windings transformer
  * or a three windings transformer that contains only one phase tap changer. The increase is in degree.</li>
  *     <li>Use {@link #BUS_TARGET_VOLTAGE} to model an increase of the voltage target of a generator, a static var compensator, a two
@@ -27,6 +29,8 @@
 public enum SensitivityVariableType {
     /** increase in MW */
     INJECTION_ACTIVE_POWER,
+    /** increase in MVar */
+    INJECTION_REACTIVE_POWER,
     /** increase in degrees */
     TRANSFORMER_PHASE,
     /** increase in kV */