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jeremypoulterjeremypoulter
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Added an interactive mode to allow you to run the simulation with different values and get the results back
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‎divert_sim/interactive.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<title>OpenEVSE Solar Divert Simulations</title>
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<script type="text/javascript" src="https://canvasjs.com/assets/script/jquery-1.11.1.min.js"></script>
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<script type="text/javascript" src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
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<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
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<script type="text/javascript" src="simulations.js"></script>
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<script type="text/javascript">
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var profiles = [
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"master",
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"interactive"
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];
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function run_simulation() {
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$.post("simulation", JSON.stringify({
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"divert_PV_ratio": parseFloat($("#divert_PV_ratio").val()),
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"divert_attack_smoothing_time": parseInt($("#divert_attack_smoothing_time").val()),
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"divert_decay_smoothing_time": parseInt($("#divert_decay_smoothing_time").val()),
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"divert_min_charge_time": parseInt($("#divert_min_charge_time").val())
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}), () => {
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init_summary(profiles);
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loadSummary("output/summary_master.csv", () => {
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loadSummary("output/summary_interactive.csv", () => {
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generate_summary_table(profiles);
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for (const dataset of datasets) {
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var id = dataset.id + "_interactive";
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loadChart(id, "output/"+ id + ".csv", dataset.title + " (interactive)", dataset.class);
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}
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}, "interactive");
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});
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});
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}
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</script>
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<style type="text/css" media="print">
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.solar,.gridie
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{
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page-break-inside: avoid;
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}
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</style>
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</head>
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<body>
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<h1>OpenEVSE Solar Divert Simulations</h1>
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<a href="view.html">Test Results</a><br/>
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<label for="divert_PV_ratio">divert_PV_ratio</label>
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<input type="text" id="divert_PV_ratio" value="1.1"><br/>
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<label for="divert_attack_smoothing_time">divert_attack_smoothing_time</label>
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<input type="text" id="divert_attack_smoothing_time" value="20"><br/>
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<label for="divert_decay_smoothing_time">divert_decay_smoothing_time</label>
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<input type="text" id="divert_decay_smoothing_time" value="200"><br/>
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<label for="divert_min_charge_time">divert_min_charge_time</label>
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<input type="text" id="divert_min_charge_time" value="600"><br/>
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<button onclick="run_simulation()">Run Simulation</button>
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<h2>Summary</h2>
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<div id="summary_table">
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</div>
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<script type="text/javascript">
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for (const dataset of datasets) {
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var id = generate_chart(dataset, "master");;
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loadChart(id, "output/"+ id + ".csv", dataset.title + " (master)", dataset.class);
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generate_chart(dataset, "interactive");
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}
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//<div id="day1_default" style="width:100%; height:300px;" class="solar" csv="output/day1_default.csv" title="Day 1"></div>
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</script>
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</body>
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</html>

‎divert_sim/requirements.txt‎

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pytest
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simplejson

‎divert_sim/run_simulations.py‎

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"""Test the divert_sim process"""
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# pylint: disable=line-too-long
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from os import path
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import os
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from subprocess import PIPE, Popen
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from datetime import datetime
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OPENEVSE_STATE_STARTING = 0
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OPENEVSE_STATE_NOT_CONNECTED = 1
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OPENEVSE_STATE_CONNECTED = 2
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OPENEVSE_STATE_CHARGING = 3
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OPENEVSE_STATE_VENT_REQUIRED = 4
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OPENEVSE_STATE_DIODE_CHECK_FAILED = 5
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OPENEVSE_STATE_GFI_FAULT = 6
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OPENEVSE_STATE_NO_EARTH_GROUND = 7
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OPENEVSE_STATE_STUCK_RELAY = 8
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OPENEVSE_STATE_GFI_SELF_TEST_FAILED = 9
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OPENEVSE_STATE_OVER_TEMPERATURE = 0
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OPENEVSE_STATE_OVER_CURRENT = 1
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OPENEVSE_STATE_SLEEPING = 4
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OPENEVSE_STATE_DISABLED = 5
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KWH_ROUNDING = 2
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summary_filename = 'summary.csv'
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def setup_summary(postfix: str = ''):
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global summary_filename
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"""Create the output directory"""
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print("Setting up test environment")
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if not path.exists('output'):
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os.mkdir('output')
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summary_filename = 'summary'+postfix+'.csv'
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with open(path.join('output', summary_filename), 'w', encoding="utf-8") as summary_file:
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summary_file.write('"Dataset","Config","Total Solar (kWh)","Total EV Charge (kWh)","Charge from solar (kWh)","Charge from grid (kWh)","Number of charges","Min time charging","Max time charging","Total time charging"\n')
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def run_simulation(dataset: str,
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output: str,
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config: bool = False, grid_ie_col: bool = False,
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solar_col: bool = False, voltage_col: bool = False,
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separator: str = ',', is_kw: bool = False) -> None:
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"""Run the divert_sim process on the given dataset and return the results"""
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line_number = 0
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last_date = None
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last_state = 0
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charge_start_date = None
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total_solar_wh = 0
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total_ev_wh = 0
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wh_from_solar = 0
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wh_from_grid = 0
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number_of_charges = 0
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min_time_charging = 0
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max_time_charging = 0
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total_time_charging = 0
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print("Testing dataset: " + dataset)
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# Read in the dataset and pass to the divert_sim process
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with open(path.join('data', dataset+'.csv'), 'r', encoding="utf-8") as input_data:
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with open(path.join('output', output+'.csv'), 'w', encoding="utf-8") as output_data:
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# open the divert_sim process
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command = ["./divert_sim"]
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if config:
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command.append("-c")
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command.append(config)
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if grid_ie_col:
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command.append("-g")
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command.append(str(grid_ie_col))
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if solar_col:
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command.append("-s")
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command.append(str(solar_col))
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if voltage_col:
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command.append("-v")
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command.append(str(voltage_col))
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if separator:
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command.append("--sep")
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command.append(separator)
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if is_kw:
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command.append("--kw")
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divert_process = Popen(command, stdin=input_data, stdout=PIPE,
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stderr=PIPE, universal_newlines=True)
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while True:
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output = divert_process.stdout.readline()
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if output == '' and divert_process.poll() is not None:
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break
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if output:
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output_data.write(output)
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line_number += 1
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if line_number > 1:
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# read in the csv line
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csv_line = output.split(',')
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date = datetime.strptime(csv_line[0], '%d/%m/%Y %H:%M:%S')
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solar = float(csv_line[1])
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# grid_ie = float(csv_line[2])
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# pilot = int(csv_line[3])
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charge_power = float(csv_line[4])
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# min_charge_power = float(csv_line[5])
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state = int(csv_line[6])
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# smoothed_available = float(csv_line[7])
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if last_date is not None:
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# Get the difference between this date and last date
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diff = date - last_date
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hours = diff.seconds / 3600
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total_solar_wh += solar * hours
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ev_wh = charge_power * hours
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total_ev_wh += charge_power * hours
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charge_from_solar_wh = min(solar, charge_power) * hours
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wh_from_solar += charge_from_solar_wh
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wh_from_grid += ev_wh - charge_from_solar_wh
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if state == OPENEVSE_STATE_CHARGING and last_state != OPENEVSE_STATE_CHARGING:
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number_of_charges += 1
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charge_start_date = date
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if state != OPENEVSE_STATE_CHARGING and last_state == OPENEVSE_STATE_CHARGING:
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this_session_time_charging = (date - charge_start_date).seconds
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total_time_charging += this_session_time_charging
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if min_time_charging == 0 or this_session_time_charging < min_time_charging:
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min_time_charging = this_session_time_charging
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if this_session_time_charging > max_time_charging:
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max_time_charging = this_session_time_charging
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last_date = date
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last_state = state
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solar_kwh=total_solar_wh / 1000
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ev_kwh=total_ev_wh / 1000
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kwh_from_solar=wh_from_solar / 1000
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kwh_from_grid=wh_from_grid / 1000
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if config is False or config.startswith('{'):
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config = "Default"
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with open(path.join('output', summary_filename), 'a', encoding="utf-8") as summary_file:
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summary_file.write(f'"{dataset}","{config}",{solar_kwh},{ev_kwh},{kwh_from_solar},{kwh_from_grid},{number_of_charges},{min_time_charging},{max_time_charging},{total_time_charging}\n')
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return (round(solar_kwh, KWH_ROUNDING),
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round(ev_kwh, KWH_ROUNDING),
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round(kwh_from_solar, KWH_ROUNDING),
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round(kwh_from_grid, KWH_ROUNDING),
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number_of_charges,
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min_time_charging,
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max_time_charging,
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total_time_charging)

‎divert_sim/server.py‎

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"""
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Simple HTTP server to run dynamic simulations and view results.
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"""
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import http.server
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import socketserver
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import simplejson as json
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from run_simulations import run_simulation, setup_summary
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class MyHttpRequestHandler(http.server.SimpleHTTPRequestHandler):
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"""
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This class will handles any incoming request from the browser
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"""
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def do_GET(self):
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if self.path == '/':
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self.path = 'view.html'
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return http.server.SimpleHTTPRequestHandler.do_GET(self)
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def do_POST(self):
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content_length = int(self.headers['Content-Length']) # <--- Gets the size of data
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post_data = self.rfile.read(content_length) # <--- Gets the data itself
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self.send_response(200)
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self.end_headers()
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try:
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config = json.loads(post_data)
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except ValueError as e:
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config = {}
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print("{}".format(config))
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# Run the simulation
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setup_summary('_interactive')
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run_simulation('almostperfect', 'almostperfect_interactive',
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config=json.dumps(config))
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run_simulation('CloudyMorning', 'CloudyMorning_interactive',
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config=json.dumps(config))
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run_simulation('day1', 'day1_interactive',
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config=json.dumps(config))
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run_simulation('day2', 'day2_interactive',
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config=json.dumps(config))
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run_simulation('day3', 'day3_interactive',
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config=json.dumps(config))
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run_simulation('day1_grid_ie', 'day1_grid_ie_interactive',
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grid_ie_col=2, config=json.dumps(config))
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run_simulation('day2_grid_ie', 'day2_grid_ie_interactive',
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grid_ie_col=2, config=json.dumps(config))
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run_simulation('day3_grid_ie', 'day3_grid_ie_interactive',
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grid_ie_col=2, config=json.dumps(config))
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run_simulation('solar-vrms', 'solar-vrms_interactive',
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voltage_col=2, config=json.dumps(config))
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run_simulation('Energy_and_Power_Day_2020-03-22', 'Energy_and_Power_Day_2020-03-22_interactive',
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separator=';', is_kw=True, config=json.dumps(config))
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run_simulation('Energy_and_Power_Day_2020-03-31', 'Energy_and_Power_Day_2020-03-31_interactive',
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separator=';', is_kw=True, config=json.dumps(config))
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run_simulation('Energy_and_Power_Day_2020-04-01', 'Energy_and_Power_Day_2020-04-01_interactive',
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separator=';', is_kw=True, config=json.dumps(config))
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self.wfile.write("OK".encode('utf-8'))
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# Create an object of the above class
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handler_object = MyHttpRequestHandler
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PORT = 8000
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my_server = socketserver.TCPServer(("", PORT), handler_object)
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# Start the server
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print("Server started at localhost:" + str(PORT))
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my_server.serve_forever()

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