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A Practical Judge Model to Simulate Lithium-Ion Battery Material Discharge Voltage Threshold
Abstract:
The output current of the current-source inverter (CSI) can be very steady. It is applied in the circumstance when precise current is needed. But the output characteristic of CSI depends on not only its performance but also the batterys nature. This paper presented a practical judge model which can simulate the batterys output threshold. In a simulation system, the amplitude of inverting current can be a very large value provided the loop impedance is small enough and the output current can remain steady. But in actual operation CSI has its out put limitation. When the given current is big, the output current will be unsteady. It is very risky because it might cause short circuit between both sides power. The output characteristic of CSI is studied from the mechanism when the control block generate the trigger impulse. The reason why the output values differ greatly between simulation and test is discussed. The simulation used a method by adopting a concussion judgment module to detect the CSIs output state. The reference currents the amplitude information and phase information is separated. The proportion between reactive component and active component is concerned to regulate CSIs output current. Simulations and tests proved the correctness and feasibility of the method.
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17-21
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September 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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