Energy, Power, Current, Voltage value are always 0

[vcba79]

Hi,

I am evaluating this simulator. Simulator and web are built smoothly but energy, power, current, voltage
in web are always 0, before charge and after charge. I searched around but can not find a solution. Do I
have to modify any file to get those values displayed? I modify evse.h and evse.cpp and those values
can display constantly but setchargingprofile will not limit power value.

any hint?

Thanks,

[vcba79]

I found this patch will display values after charging started. Please correct me if I am doing wrong.

diff --git a/src/evse.cpp b/src/evse.cpp
index a0261d6..3310300 100644
--- a/src/evse.cpp
+++ b/src/evse.cpp
@@ -119,14 +119,13 @@ void Evse::setup() {
}

void Evse::loop() {

 auto curStatus = getChargePointStatus(connectorId);

 if (status.compare(MicroOcpp::cstrFromOcppEveState(curStatus))) {
     status = MicroOcpp::cstrFromOcppEveState(curStatus);
 }

• bool simulate_isCharging = ocppPermitsCharge(connectorId) && trackEvPluggedBool->getBool() && trackEvsePluggedBool->getBool() && trackEvReadyBool->getBool() && trackEvseReadyBool->getBool();

• bool simulate_isCharging = ocppPermitsCharge(connectorId) && trackEvPluggedBool->getBool() && trackEvReadyBool->getBool() && trackEvseReadyBool->getBool();

  simulate_isCharging &= limit_power >= 720.f; //minimum charging current is 6A (720W for 120V grids) according to J1772

diff --git a/src/evse.h b/src/evse.h
index eaf37dc..bf028d5 100644
--- a/src/evse.h
+++ b/src/evse.h
@@ -26,11 +26,11 @@ private:
std::string trackEvseReadyKey;

 const float SIMULATE_POWER_CONST = 11000.f;

• float simulate_power = 0;

• float simulate_power = 1;
  float limit_power = 11000.f;
  const float SIMULATE_ENERGY_DELTA_MS = SIMULATE_POWER_CONST / (3600.f * 1000.f);

• unsigned long simulate_energy_track_time = 0;
• float simulate_energy = 0;

• unsigned long simulate_energy_track_time = 10;

• float simulate_energy = 1;

  std::string status;
  public:

[huntc]

@scottaric - any reason to not make your commit a PR? Thanks.

[srobinet]

@huntc I'm not a collaborator (yet). I'm not entirely sure if this will have any side-effects or is bypassing any other kind of simulated functionality, but it has indeed allowed me to proceed with what I needed to do. I'll work towards lining up a PR.

[scottaric]

@huntc FIgured out how to do a pull request - my first time on a fork.

#38

[vcba79]

After more experience on this package, I am sure what cause this problem. Bundled web has 3 button EvReady, EvseReady, EvPlugged to get charger prepared and EvsePlugged is always false if we check evse api in bundled web.

So '&& trackEvsePluggedBool->getBool() ' will cause problem, my probelm solved after remvoe this code in evse.cpp. Any other modification is not necessary.

[LeonardoGBarreras]

@vcba79, your answer was really helpful to me, thank you. But how did you define a limit for the charge??????
I already managed to get the meter values to start counting, but I haven’t managed to set a limit.

[vcba79]

Power limit seems hard coded in src/evse.h.
If you modify the following lines, the power will be 9000 instead of 11000.

const float SIMULATE_POWER_CONST = 9000.f;
float limit_power = 9000.f;

But I am not sure that is there any side-effects caused by this modification.

Hope this helps.