ev-simulator

Summary

Simple node.js program to simulate a set of charging stations based on the OCPP-J 1.6 protocol.

Prerequisites

Windows

• Chocolatey:

choco install -y nodejs-lts

MacOSX

• Homebrew:

brew install node@14

GNU/Linux:

• NodeSource Node.js Binary Distributions for version 14.X

Configuration syntax

All configuration files are in the JSON standard format.

The charging stations simulator's main configuration parameters must be within the src/assets/config.json file. A configuration template file is available at src/assets/config-template.json.

All charging station templates are in the directory src/assets/station-templates.

A list of RFID tags must be defined for the automatic transaction generator with the default location and name src/assets/authorization-tags.json. A template file is available at src/assets/authorization-tags-template.json.

The charging stations simulator have an automatic configuration files reload feature at change for:

• main configuration;
• charging station templates;
• authorization RFID tags.

But the modifications to test have to be done to the files in the build result directory dist/assets. Once the modifications are finished, they have to be reported or copied to the matching files in the build source directory src/assets to ensure they will be taken into account at next build.

Main configuration

src/assets/config.json:

Key	Value(s)	Default Value	Value type	Description
supervisionURLs		[]	string[]	array of connection URIs to OCPP-J servers
distributeStationsToTenantsEqually	true/false	true	boolean	distribute charging stations uniformly to the OCPP-J servers
workerProcess	workerSet/staticPool/dynamicPool	workerSet	string	worker threads process type
workerStartDelay		500	integer	milliseconds to wait at charging station worker threads startup
workerPoolMinSize		4	integer	worker threads pool minimum number of threads
workerPoolMaxSize		16	integer	worker threads pool maximum number of threads
workerPoolStrategy	ROUND_ROBIN/LESS_RECENTLY_USED/...	poolifier default: ROUND_ROBBIN	string	worker threads pool poolifier worker choice strategy
chargingStationsPerWorker		1	integer	number of charging stations per worker threads for the workerSet process type
logStatisticsInterval		60	integer	seconds between charging stations statistics output in the logs
logConsole	true/false	false	boolean	output logs on the console
logFormat		simple	string	winston log format
logRotate	true/false	true	boolean	enable daily log files rotation
logMaxFiles		7	integer	maximum number of log files to keep
logLevel	emerg/alert/crit/error/warning/notice/info/debug	info	string	winston logging level
logFile		combined.log	string	log file relative path
logErrorFile		error.log	string	error log file relative path
performanceStorage		{ "enabled": false, "type": "jsonfile", "file:///performanceRecords.json" }	{ enabled: string; type: string; URI: string; } where type can be 'jsonfile' or 'mongodb'	performance storage configuration section
stationTemplateURLs		{}[]	{ file: string; numberOfStations: number; }[]	array of charging station templates URIs configuration section (template file name and number of stations)

Worker process model:

• workerSet: Worker set executing each a static number (chargingStationsPerWorker) of simulated charging stations from the total

• staticPool: Statically sized worker pool executing a static total number of simulated charging stations

• dynamicPool: Dynamically sized worker pool executing a static total number of simulated charging stations

Charging station template

Key	Value(s)	Default Value	Value type	Description
supervisionURL		''	string	connection URI to OCPP-J server
supervisionUser		''	string	basic HTTP authentication user to OCPP-J server
supervisionPassword		''	string	basic HTTP authentication password to OCPP-J server
ocppVersion	1.6	1.6	string	OCPP version
ocppProtocol	json	json	string	OCPP protocol
authorizationFile		''	string	RFID tags list file relative to src/assets path
baseName		''	string	base name to build charging stations name
nameSuffix		''	string	name suffix to build charging stations name
fixedName	true/false	false	boolean	use the baseName as the charging stations unique name
chargePointModel		''	string	charging stations model
chargePointVendor		''	string	charging stations vendor
chargeBoxSerialNumberPrefix		''	string	charging stations serial number prefix
firmwareVersion		''	string	charging stations firmware version
power			float|float[]	charging stations maximum power value(s)
powerSharedByConnectors	true/false	false	boolean	charging stations power shared by its connectors
powerUnit	W/kW	W	string	charging stations power unit
currentOutType	AC/DC	AC	string	charging stations current out type
voltageOut		AC:230/DC:400	integer	charging stations voltage out
numberOfPhases	0/1/3	AC:3/DC:0	integer	charging stations number of phase(s)
numberOfConnectors			integer|integer[]	charging stations number of connector(s)
useConnectorId0	true/false	true	boolean	use connector id 0 definition from the template
randomConnectors	true/false	false	boolean	randomize runtime connector id affectation from the connector id definition in template
resetTime		60	integer	seconds to wait before the charging stations come back at reset
autoRegister	true/false	false	boolean	set the charging station as registered at boot notification for testing purpose
autoReconnectMaxRetries		-1 (unlimited)	integer	connection retries to the OCPP-J server
reconnectExponentialDelay	true/false	false	boolean	connection delay retry to the OCPP-J server
registrationMaxRetries		-1 (unlimited)	integer	charging stations boot notification retries
enableStatistics	true/false	true	boolean	enable charging stations statistics
mayAuthorizeAtRemoteStart	true/false	true	boolean	always send authorize at remote start transaction when AuthorizeRemoteTxRequests is enabled
beginEndMeterValues	true/false	false	boolean	enable Transaction.{Begin,End} MeterValues
outOfOrderEndMeterValues	true/false	false	boolean	send Transaction.End MeterValues out of order
meteringPerTransaction	true/false	true	boolean	enable metering history on a per transaction basis
transactionDataMeterValues	true/false	false	boolean	enable transaction data MeterValues at stop transaction
mainVoltageMeterValues	true/false	true	boolean	include charging station main voltage MeterValues on three phased charging stations
phaseLineToLineVoltageMeterValues	true/false	true	boolean	include charging station line to line voltage MeterValues on three phased charging stations
Configuration			ChargingStationConfiguration	charging stations OCPP parameters configuration section
AutomaticTransactionGenerator			AutomaticTransactionGenerator	charging stations ATG configuration section
Connectors			Connectors	charging stations connectors configuration section

Configuration section

  "Configuration": {
    "configurationKey": [
       ...
       {
        "key": "StandardKey",
        "readonly": false,
        "value": "StandardValue",
        "visible": true,
        "reboot": false
      },
      ...
      {
        "key": "VendorKey",
        "readonly": false,
        "value": "VendorValue",
        "visible": false,
        "reboot": true
      },
      ...
    ]
  }

AutomaticTransactionGenerator section

  "AutomaticTransactionGenerator": {
    "enable": false,
    "minDuration": 60,
    "maxDuration": 80,
    "minDelayBetweenTwoTransactions": 15,
    "maxDelayBetweenTwoTransactions": 30,
    "probabilityOfStart": 1,
    "stopAfterHours": 0.3,
    "stopOnConnectionFailure": true,
    "requireAuthorize": true
  }

Connectors section

  "Connectors": {
    "0": {},
    "1": {
      "bootStatus": "Available",
      "MeterValues": [
        ...
        {
          "unit": "W",
          "measurand": "Power.Active.Import",
          "phase": "L1-N",
          "value": "5000",
          "fluctuationPercent": "10"
        },
        ...
        {
          "unit": "A",
          "measurand": "Current.Import"
        },
        ...
        {
          "unit": "Wh"
        },
        ...
      ]
    }
  },

Start

To start the program, run: npm start.

Docker

In the docker folder:

make

Or with the optional git submodules:

make SUBMODULES_INIT=true

OCPP-J commands supported

Version 1.6

Core Profile

• ✅ Authorize
• ✅ BootNotification
• ✅ ChangeAvailability
• ✅ ChangeConfiguration
• ✅ ClearCache
• ❌ DataTransfer
• ✅ GetConfiguration
• ✅ Heartbeat
• ✅ MeterValues
• ✅ RemoteStartTransaction
• ✅ RemoteStopTransaction
• ✅ Reset
• ✅ StartTransaction
• ✅ StatusNotification
• ✅ StopTransaction
• ✅ UnlockConnector

Firmware Management Profile

• ✅ GetDiagnostics
• ❌ DiagnosticsStatusNotification
• ❌ FirmwareStatusNotification
• ❌ UpdateFirmware

Local Auth List Management Profile

• ❌ GetLocalListVersion
• ❌ SendLocalList

Reservation Profile

• ❌ CancelReservation
• ❌ ReserveNow

Smart Charging Profile

• ✅ ClearChargingProfile
• ✅ GetCompositeSchedule
• ✅ SetChargingProfile

Remote Trigger Profile

• ✅ TriggerMessage

OCPP-J standard parameters supported

All kind of OCPP parameters are supported in a charging station template. The list here mention the standard ones also handled automatically in the simulator.

Version 1.6

Core Profile

• ✅ AuthorizeRemoteTxRequests (type: boolean) (units: -)
• ❌ ClockAlignedDataInterval (type: integer) (units: seconds)
• ✅ ConnectionTimeOut (type: integer) (units: seconds)
• ❌ GetConfigurationMaxKeys (type: integer) (units: -)
• ✅ HeartbeatInterval (type: integer) (units: seconds)
• ❌ LocalAuthorizeOffline (type: boolean) (units: -)
• ❌ LocalPreAuthorize (type: boolean) (units: -)
• ❌ MeterValuesAlignedData (type: CSL) (units: -)
• ✅ MeterValuesSampledData (type: CSL) (units: -)
• ✅ MeterValueSampleInterval (type: integer) (units: seconds)
• ✅ NumberOfConnectors (type: integer) (units: -)
• ❌ ResetRetries (type: integer) (units: times)
• ✅ ConnectorPhaseRotation (type: CSL) (units: -)
• ❌ StopTransactionOnEVSideDisconnect (type: boolean) (units: -)
• ❌ StopTransactionOnInvalidId (type: boolean) (units: -)
• ❌ StopTxnAlignedData (type: CSL) (units: -)
• ❌ StopTxnSampledData (type: CSL) (units: -)
• ✅ SupportedFeatureProfiles (type: CSL) (units: -)
• ❌ TransactionMessageAttempts (type: integer) (units: times)
• ❌ TransactionMessageRetryInterval (type: integer) (units: seconds)
• ❌ UnlockConnectorOnEVSideDisconnect (type: boolean) (units: -)
• ✅ WebSocketPingInterval (type: integer) (units: seconds)

Firmware Management Profile

• none

Local Auth List Management Profile

• ✅ LocalAuthListEnabled (type: boolean) (units: -)
• ❌ LocalAuthListMaxLength (type: integer) (units: -)
• ❌ SendLocalListMaxLength (type: integer) (units: -)

Reservation Profile

• none

Smart Charging Profile

• ❌ ChargeProfileMaxStackLevel (type: integer) (units: -)
• ❌ ChargingScheduleAllowedChargingRateUnit (type: CSL) (units: -)
• ❌ ChargingScheduleMaxPeriods (type: integer) (units: -)
• ❌ MaxChargingProfilesInstalled (type: integer) (units: -)

Remote Trigger Profile

• none

License

This file and all other files in this repository are licensed under the Apache Software License, v.2 and copyrighted under the copyright in NOTICE file, except as noted otherwise in the LICENSE file or the code source file header.

Please note that Docker images can contain other software which may be licensed under different licenses. This LICENSE and NOTICE files are also included in the Docker image. For any usage of built Docker images please make sure to check the licenses of the artifacts contained in the images.