103 lines
2.4 KiB
Go
103 lines
2.4 KiB
Go
package meter
|
|
|
|
import (
|
|
"math"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/evcc-io/evcc/api"
|
|
"github.com/evcc-io/evcc/api/implement"
|
|
"github.com/evcc-io/evcc/meter/shelly"
|
|
"github.com/evcc-io/evcc/util"
|
|
)
|
|
|
|
// Shelly meter considering usage
|
|
type Shelly struct {
|
|
implement.Caps
|
|
conn *shelly.Connection
|
|
usage string
|
|
}
|
|
|
|
// Shelly meter implementation
|
|
func init() {
|
|
registry.Add("shelly", NewShellyFromConfig)
|
|
}
|
|
|
|
// NewShellyFromConfig creates a Shelly charger from generic config
|
|
func NewShellyFromConfig(other map[string]any) (api.Meter, error) {
|
|
cc := struct {
|
|
URI string
|
|
User string
|
|
Password string
|
|
Channel int
|
|
Usage string
|
|
Cache time.Duration
|
|
}{
|
|
Cache: time.Second,
|
|
}
|
|
|
|
if err := util.DecodeOther(other, &cc); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
c, err := NewShelly(cc.URI, cc.User, cc.Password, strings.ToLower(cc.Usage), cc.Channel, cc.Cache)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Three-phase Shelly energy meters count each phase separately (non-balanced),
|
|
// making their totals unsuitable for bidirectional grid metering.
|
|
if !(c.usage == "grid" && c.conn.IsThreePhase()) {
|
|
total, ret := c.conn.TotalEnergy, c.conn.ReturnEnergy
|
|
if c.usage == "pv" {
|
|
// reverse direction
|
|
total, ret = ret, total
|
|
}
|
|
implement.Has(c, implement.MeterEnergy(total))
|
|
implement.Has(c, implement.MeterReturnEnergy(ret))
|
|
}
|
|
|
|
if phases, ok := c.conn.Generation.(shelly.Phases); ok {
|
|
implement.Has(c, implement.PhaseVoltages(phases.Voltages))
|
|
implement.Has(c, implement.PhaseCurrents(phases.Currents))
|
|
implement.Has(c, implement.PhasePowers(phases.Powers))
|
|
}
|
|
|
|
return c, nil
|
|
}
|
|
|
|
// NewShelly creates Shelly meter
|
|
func NewShelly(uri, user, password, usage string, channel int, cache time.Duration) (*Shelly, error) {
|
|
conn, err := shelly.NewConnection(uri, user, password, channel, cache)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
c := &Shelly{
|
|
Caps: implement.New(),
|
|
conn: conn,
|
|
usage: usage,
|
|
}
|
|
return c, nil
|
|
}
|
|
|
|
var _ api.Meter = (*Shelly)(nil)
|
|
|
|
// CurrentPower implements the api.Meter interface
|
|
func (c *Shelly) CurrentPower() (float64, error) {
|
|
power, err := c.conn.CurrentPower()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return c.currentPowerForUsage(power, c.conn.SignedPower()), nil
|
|
}
|
|
|
|
// PV usage inverts directional power, otherwise the magnitude is used.
|
|
func (c *Shelly) currentPowerForUsage(power float64, signed bool) float64 {
|
|
if c.usage != "pv" {
|
|
return power
|
|
}
|
|
if signed {
|
|
return -power
|
|
}
|
|
return math.Abs(power)
|
|
}
|