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https://github.com/metrostroi-repo/MetrostroiAddon.git
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232 lines
13 KiB
Lua
232 lines
13 KiB
Lua
--------------------------------------------------------------------------------
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-- Battery (HKH-80 type NiCd battery)
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--------------------------------------------------------------------------------
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-- Copyright (C) 2013-2018 Metrostroi Team & FoxWorks Aerospace s.r.o.
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-- Contains proprietary code. See license.txt for additional information.
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--------------------------------------------------------------------------------
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Metrostroi.DefineSystem("Battery")
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TRAIN_SYSTEM.DontAccelerateSimulation = true
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function TRAIN_SYSTEM:Initialize()
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-- Предохранители цепей (ПА1, ПА2)
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self.Train:LoadSystem("PA1","Relay","PP-28", { trigger_level = 31.5 }) -- A
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self.Train:LoadSystem("PA2","Relay","PP-28", { trigger_level = 31.5 }) -- A
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-- Battery parameters
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self.ElementCapacity = 80 -- A*hour
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self.Capacity = self.ElementCapacity * 3600
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self.Charge = self.Capacity
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self.FullCapacity = self.Capacity
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-- Current through battery/A
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self.Current = 0
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self.Charging = 0
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self.ElementCount = 52
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self.StartVoltage = 75 -- 1.44 volt per fully charged new NiCd-cell
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self.SoC = 0.5 + math.random()*0.5 -- 50-100 %
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local EMF_soc, Uh_soc, tvb_sign
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EMF_soc=-0.68175*self.SoC^8+8.82823*self.SoC^7-24.43179*self.SoC^6+31.87221*self.SoC^5-23.97881*self.SoC^4+11.24774*self.SoC^3-3.40685*self.SoC^2+0.74692*self.SoC+1.22076
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Uh_soc=2.62496*self.SoC^8-12.77132*self.SoC^7+22.37586*self.SoC^6-18.04921*self.SoC^5+6.14667*self.SoC^4+0.26467*self.SoC^3-0.82125*self.SoC^2+0.21246*self.SoC+0.02641
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self.TargetVoltage = (EMF_soc - Uh_soc)*self.ElementCount
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self.Voltage = self.TargetVoltage
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self.Vpart = 0
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self.CellIRes = 0.009 -- 9 mOhm is a standard^w fake internal resistance of a fully-charged and rested new HKH-80 Ah NiCd-cell
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self.IResistance = self.CellIRes*self.ElementCount
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--self.SoC0v = 52 -- 52 volts at 0% state of charge assuming 1.0 volt per fully discharged cell
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self.CutoffVoltage = 45 -- we want deep discharge <_<
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self.EthaCE0 = 0.94 -- Coulomb efficiency coeff
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self.EthaCE = self.EthaCE0
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self.Ibatt = 0
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self.eds_eq = 0
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self.Consumers = {}
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self.Dischar = false
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self.ComputerCar = false
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---------------------------------------------
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-- 10 mV/min — voltage covery/recovery speed during first 30 minutes after charging/discharging stopped
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-- 1.0 (1.2) Volt/cell - fully discharged under load (OCV)
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-- 1.7 (1.44) Volt/cell - fully charged under load (OCV)
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---------------------------------------------
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for k,v in pairs(self.Train.Systems) do
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if v.hasCoil and not self.Consumers[v] then
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--print("Registering relay",v.Name, "Train: ", self.Train)
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self.Consumers[v] = {0,v.coil_res,0}
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end
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end
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--print "------------------\n"
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end
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-- TODO: - расставить параметры для всех оставшихся реле (убедиться, что подъемный ток ниже номинального)
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-- self.Consumers is a table of relays with the next structure:
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-- [<relay>] = {<relay.Value>, <relay.coil_res>, <relay.current>}
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function TRAIN_SYSTEM:Inputs()
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return { "Charge", "Dischargeable", "InitialVoltage", "CarType", "Computer" }
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end
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function TRAIN_SYSTEM:Outputs()
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return { "Capacity", "Charge", "Voltage", "eds_eq", "Ibatt" }
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end
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function TRAIN_SYSTEM:TriggerInput(name,value)
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if name == "Charge" then self.Charging = value end
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if name == "Dischargeable" then self.Dischar = value end
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--if name == "InitialVoltage" then self.StartVoltage = value end
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if name == "CarType" then self.CarType = value end
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end
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local function GetBranchCondSum(consumers)
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local br = 1e-12
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for m,n in pairs(consumers) do
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br = br + 1/(n[1] > 0 and n[2] or 1e12)
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end
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return br
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end
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function TRAIN_SYSTEM:Think(dT)
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if self.CarType == 1 then
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for k,v in pairs(self.Consumers) do
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v[1] = k.Value
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v[3] = k.Current
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end
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if self.Train.ComputerCar then
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local nodecurr_sum, branchcond_sum = 0.0, 0.0
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local eds_eq = 0.0
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--a "two-node method" of 10's wire voltage computing
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for k,v in ipairs(self.Train.WagonList) do
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nodecurr_sum = nodecurr_sum + v.A56.Value*(v.VB.Value*v.Battery.Voltage/v.Battery.IResistance + v.PowerSupply.X2_1*v.A24.Value*v.PowerSupply.VoltageOut/v.PowerSupply.IResistance)
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branchcond_sum = branchcond_sum + GetBranchCondSum(v.Battery.Consumers) + v.A56.Value*(v.VB.Value/v.Battery.IResistance + v.PowerSupply.X2_1*v.A24.Value/v.PowerSupply.IResistance)
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end
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eds_eq = nodecurr_sum/branchcond_sum
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for k,v in ipairs(self.Train.WagonList) do
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local consumers_cond = GetBranchCondSum(v.Battery.Consumers)
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v.PowerSupply.car_control_load = eds_eq*consumers_cond
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v.Battery.Ibatt = math.min(1,(2-self.Train.PA1.Value-self.Train.PA2.Value))
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*(math.min(1,(v.VB.Value*v.A56.Value+v.A24.Value))*v.VB.Value*((v.A56.Value*(eds_eq - v.Battery.Voltage)
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+ v.PowerSupply.X2_1*(1-v.A56.Value)*(v.PowerSupply.VoltageOut*v.A24.Value - v.Battery.Voltage))))/v.Battery.IResistance
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v.PowerSupply.Iout = v.VB.Value*math.min(1,(2-self.Train.PA1.Value-self.Train.PA2.Value))*v.A24.Value*(v.PowerSupply.VoltageOut - eds_eq)/v.PowerSupply.IResistance
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+ v.VB.Value*v.A56.Value*v.A24.Value*(v.PowerSupply.VoltageOut - eds_eq)*consumers_cond
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v.Battery.eds_eq = eds_eq
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v.eds_eq = v.Battery.eds_eq
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-- DEBUG
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--if self.Train.R_VPR and self.Train.R_VPR.Value < 0.5 then
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--print(v.eds_eq, nodecurr_sum, branchcond_sum)
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--print(v.PowerSupply.car_control_load,v.Battery.Ibatt,v.Battery.IResistance)
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--print(v.PowerSupply.Iout,v.PowerSupply.Icosume)
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--end
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end
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end
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-- Calculate state of charge, internal resistance and battery voltage
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if self.Dischar then
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self.Capacity = self.Capacity - dT * (self.FullCapacity*0.1/86400) -- make capacity loss ~ 10% per day (just a game abstraction)
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if self.Ibatt > 0 then
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if self.Ibatt >= 8 then
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local kCE = (self.EthaCE0 - 0.5)/72
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local aCE = kCE*80 + 0.5
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self.EthaCE = aCE - kCE * math.abs(self.Ibatt)
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else
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self.EthaCE = 0.94-0.8*math.exp(-self.Ibatt)
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end
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else
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if self.SoC <= 1.0 then
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self.EthaCE = 1 -- maybe I should make it more than 1... (instead of self discharge current)
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else
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self.EthaCE = 0.5*math.exp(2.6*self.SoC) - 5.73 -- не бывает!
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end
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end
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if self.SoC <= 0 or self.SoC >= 1.0 then self.EthaCE = 0 end
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-- Возможно, надо ввести ток саморазряда, а не ебаться с выдуманной зависимостью EthaCE от SoC выше 100% (которого не бывает >_>)
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self.SoC = self.SoC + self.EthaCE*self.Ibatt*dT/self.Capacity
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local SoC = math.max(0,math.min(100,self.SoC*100))
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if 50 <= SoC and SoC <= 100 then
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self.CellIRes = 0.009
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elseif SoC >= 0.5 then
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self.CellIRes = (9+0.1*(50-SoC))*10^(-3)
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-- 0.035C and 0.08C (idk why...)
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elseif self.Ibatt < -0.035*self.ElementCapacity or (0.014 < self.CellIRes and self.CellIRes < 0.8296 and self.Ibatt > 0.08*self.ElementCapacity) then
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-- SoC less than 0.5% and discharging or Vbatt approx. 62 - 52 V and charging
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if 55 <= self.Voltage and self.Voltage < 62 then
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self.CellIRes = 112 - 14*(self.Voltage - 55)
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elseif 50 <= self.Voltage and self.Voltage < 55 then
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self.CellIRes = 1308 - 239.2*(self.Voltage - 50)
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end
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end
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self.IResistance = self.CellIRes * self.ElementCount
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--self.Train.BattCurrent = self.Ibatt*self.Train.A24.Value
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self.Train.PA1:TriggerInput("Close",math.abs(self.Ibatt)/2) -- Это неправильно, но я уже заебалась
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self.Train.PA2:TriggerInput("Close",math.abs(self.Ibatt)/2)
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end
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-- Calculate battery voltage
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-- Polynomials for battery OCV calculation during charge and discharge (source: https://www.mdpi.com/1996-1073/16/21/7291)
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-- Roughly, Vbatt_charge = EMF(SOC) + 𝑈ℎ(SOC), Vbatt_discharge = EMF(SOC) - 𝑈ℎ(SOC)
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--EMF(SOC)=−0.68175SOC^8+8.82823SOC^7−24.43179SOC^6+31.87221SOC^5−23.97881SOC^4+11.24774SOC^3−3.40685SOC^2+0.74692SOC+1.22076
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--𝑈ℎ(SOC)=2.62496SOC^8−12.77132SOC^7+22.37586SOC^6−18.04921SOC^5+6.14667SOC^4+0.26467SOC^3−0.82125SOC^2+0.21246SOC+0.02641
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-- open circuit voltage calculation
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local EMF_soc, Uh_soc, tvb_sign
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EMF_soc=-0.68175*self.SoC^8+8.82823*self.SoC^7-24.43179*self.SoC^6+31.87221*self.SoC^5-23.97881*self.SoC^4+11.24774*self.SoC^3-3.40685*self.SoC^2+0.74692*self.SoC+1.22076
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Uh_soc=2.62496*self.SoC^8-12.77132*self.SoC^7+22.37586*self.SoC^6-18.04921*self.SoC^5+6.14667*self.SoC^4+0.26467*self.SoC^3-0.82125*self.SoC^2+0.21246*self.SoC+0.02641
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-- Battery voltage (EMF in our case) growth rate at SoC > 90%: 0.25 volt per 10%
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-- Battery voltage (EMF in our case) decrease rate at SoC < 10%: 0.20 volt per 10%
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if self.Ibatt > 0.005*self.ElementCapacity then
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self.TargetVoltage = EMF_soc + Uh_soc
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if self.SoC > 0.9 and self.Ibatt > 0.005*self.ElementCapacity then
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if self.Vpart < 0 then self.Vpart = 0 end
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self.Vpart = 2.5*(self.SoC-0.9)
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self.TargetVoltage = math.min(self.eds_eq/self.ElementCount, self.TargetVoltage + self.Vpart)
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end
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else
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self.TargetVoltage = EMF_soc - Uh_soc
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if self.SoC < 0.1 and self.Ibatt < -0.005*self.ElementCapacity then
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if self.Vpart > 0 then self.Vpart = 0 end
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self.Vpart = -2.0*(0.1-self.SoC)
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self.TargetVoltage = math.max(0.8, self.TargetVoltage + self.Vpart)
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end
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end
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self.TargetVoltage = self.TargetVoltage*self.ElementCount
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self.Voltage = self.Voltage + (self.TargetVoltage - self.Voltage)*0.05
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-- DEBUG
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-- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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--if self.Train.R_VPR and self.Train.R_VPR.Value < 0.5 then
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--local tval = 1
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--print("Target Voltage = "..self.TargetVoltage, "self.Voltage = "..self.Voltage, "train:",self)
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--print("self.SoC = "..self.SoC, "self.Ibatt = "..self.Ibatt)
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--print("self.eds_eq = "..self.eds_eq)
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--print("self.EthaCE = "..self.EthaCE, "self.IResistance = "..self.IResistance)
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--print("self.Capacity = "..self.Capacity)
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--print("self.Train.PA2 = "..self.Train.PA2.Value)
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--[[
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EMF_soc=-0.68175*tval^8+8.82823*tval^7-24.43179*tval^6+31.87221*tval^5-23.97881*tval^4+11.24774*tval^3-3.40685*tval^2+0.74692*tval+1.22076
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Uh_soc=2.62496*tval^8-12.77132*tval^7+22.37586*tval^6-18.04921*tval^5+6.14667*tval^4+0.26467*tval^3-0.82125*tval^2+0.21246*tval+0.02641
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print("EMF_soc = "..EMF_soc, "Uh_soc = "..Uh_soc)--]]
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--end
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-- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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-- Legacy code
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else
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-- Calculate discharge
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self.Current = 0--self.Train.KVC.Value*90*(self.Train.PowerSupply.XT3_1 > 0 and 3 or -1 + 4*self.Train:ReadTrainWire(27))*50*self.Train.Panel["V1"]
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--print(self.Train.Panel["V1"])
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self.Charge = math.min(self.Capacity,self.Charge + self.Current * dT)
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-- Calculate battery voltage
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if self.Train.PowerSupply then
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self.Voltage = 65*(self.Charge/self.Capacity) + ((self.Train.PowerSupply.XT3_1 or self.Charging) > 0 and 17 or 0)
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else
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self.Voltage = 65*(self.Charge/self.Capacity) + (self.Charging > 0 and 17 or 0)
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end
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end
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end |