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Add RPC to set reactive power #60

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May 26, 2023
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Add RPC to set reactive power #60

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6 changes: 6 additions & 0 deletions RELEASE_NOTES.md
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Expand Up @@ -50,6 +50,12 @@

A new inverter component states have been added: `Unknown`

* [Added RPC to set reactive power](https://github.com/frequenz-floss/frequenz-api-microgrid/pull/60)

A new RPC, named `SetPowerReactive` has been added to set reactive power for
inverters, and other components that support it. Also, the parameters to the
RPC can be sent using the message `SetPowerReactiveParam`.

## Bug Fixes

<!-- Here goes notable bug fixes that are worth a special mention or explanation -->
27 changes: 26 additions & 1 deletion proto/frequenz/api/microgrid/microgrid.proto
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Expand Up @@ -179,7 +179,7 @@ service Microgrid {
// ==== vales here are allowed and will be accepted
rpc AddInclusionBounds(SetBoundsParam) returns (google.protobuf.Timestamp);

// Sets the power output of a component with a given ID, provided the
// Sets the active power output of a component with a given ID, provided the
// component supports it.
//
// Note that the target component may have a resolution of more than 1 W.
Expand All @@ -198,6 +198,19 @@ service Microgrid {
};
}

// Sets the reactive power output of a component with a given ID, provided the
// component supports it.
//
// Note that the target component may have a resolution of more than 1 VAr.
// E.g., an inverter may have a resolution of 88 VAr.
// In such cases, the magnitude of power will be floored to the nearest
// multiple of the resolution.
rpc SetPowerReactive(SetPowerReactiveParam) returns (google.protobuf.Empty) {
option (google.api.http) = {
get : "/v1/components/{component_id}/setPowerReactive/{power}"
};
}

// Starts the component, and brings it into a state where it is immediately
// operational.
//
Expand Down Expand Up @@ -368,6 +381,18 @@ message SetPowerActiveParam {
float power = 2;
}

// Parameters for setting the reactive power of an appropriate component using
// the `SetPowerReactive` RPC.
message SetPowerReactiveParam {
// The ID of the component to set the output reactive power of.
uint64 component_id = 1;

// The output reactive power level, in VAr.
// -ve values are for inductive (lagging) power , and +ve values are for
// capacitive (leading) power.
float power = 2;
}

// Parameters for setting bounds of a given metric of a given component.
message SetBoundsParam {
// An enumerated list of metrics whose bounds can be set.
Expand Down