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WorksheetsESTIMATION OF SOC
Total questions: 21
Worksheet time: 3mins
A good SOC calculation provide advantages for EV
Longer battery life
Better battery performance
Failure warning for battery pack
Low cost
Types of measurement for SOC estimation
Direct measurement
Hybrid method
Adaptive system
Book keeping estimation
Thermal balancing
Direct measurement uses a physical properties such as _________of battery
Voltage
Current
Impedance
Reactance
Mathematical methods of direct measurement are
Open circuit voltage method
Terminal voltage method
Impedance method
Reactive method
Book keeping estimation is used for
Discharging
Charging
Counting
Modifying
Method of book keeping estimation
Coulomb counting method
Modified Coulomb counting method
Hybrid method
All of above
What is adaptive system
It is self discharging & counting system
It is self modifying & automatically counting system
It is self designing & automatically adjustable system
None of above
The adaptive system includes:
None of above
BP neutral network
Fuzzy neutral network
RBF neutral network
All of above
Which method allows the globally optimal estimation performance
Book keeping estimation method
Adaptive method
Direct measurement method
Hybrid method
All of above
Hybrid method includes :
Columb counting &emf combination
Columb counting &kalman filter combinations
Per unit system & EKF combination
Battery balancing
None of above
Direct measurement uses a physical properties such as _________of battery
Voltage
Current
Impedance
Reactance
(a) provides equal &safety operation for all battery cells
Types of battery balancing
Active
Linear
Non linear
Passive
Battery thermal management is used for:
Low cost
Extended life
Achieving performance
Low maintenance
The decrease of the operating temperature will reduce reaction rate thus the battery power capacity is decreased
True
False
The temperature range affects
Battery power
Battery performance
Battery life
All of above
Generally the temperature of battery must be controlled between
20° to 40°
20°to 50°
15°to 20°
17°to 40°
___can lead to runway conditions that causes battery to catch fire
High impedance
High voltage
High frequency
High current
EKF means
Estimation kyudo filler
European kyudo federation
Estimation kalman filler
Extended kalman filter
None of above
Colulomb counting method measures
Discharging current of battery
Charging current of battery
Charging voltage of battery
Integrates the discharging current
_______method produce good estimation of SOC compared to individual methods
Adaptive systems
Book keeping
Direct measurement
Hybrid method
