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DC-link voltage ripple estimation under rated switching conditions

DC-link voltage ripple estimation under rated switching conditions.

Runnable This tool can run, but independent engineering verification has not been established.

Quick Answer

The dc-link voltage ripple estimation under rated switching conditions computes Δv_pp from the input values you provide.

Calculator

ΔV_pp (V)
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Result Interpretation

DC-link voltage ripple estimation under rated switching conditions computes ΔV_pp in V using the defined engineering formula and the input values provided. ΔV_pp is expressed in V. No universal acceptance threshold is defined by this calculator.

Worked Example

default_test

Given:

  • pf = 0.98
  • c_dc = 0.005
  • f_sw = 4000
  • p_ac = 2000000
  • v_dc = 1500

Expected Result:

  • ΔV_pp = 2.1114289190647

Engineering Interpretation:

Under the given input conditions, the calculated result is: ΔV_pp = 2.1114289190647 V.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.

Formula / Method

Δv_pp = (p_ac*sqrt(1-pow(pf,2)))/(2*3.141592653589793*f_sw*c_dc*v_dc)

ΔV_pp.

Variables

SymbolLabelRoleDescription
p_ac p_ac INPUT p_ac
pf pf INPUT pf
f_sw f_sw INPUT f_sw
c_dc c_dc INPUT c_dc
v_dc v_dc INPUT v_dc
ΔV_pp ΔV_pp OUTPUT ΔV_pp

Calculation Steps

  1. Enter the p_ac in W.
  2. Enter the pf in pu.
  3. Enter the f_sw in Hz.
  4. Enter the c_dc in F.
  5. Enter the v_dc in V.
  6. Read the Δv_pp (V) from the results.

Frequently Asked Questions

What does this calculator calculate?

The DC-link voltage ripple estimation under rated switching conditions estimates ΔV_pp based on the input parameters you provide

Why is p_ac important in this calculation?

p_ac is directly proportional to Δv_pp. When you enter p_ac in W, the calculator uses it in the engineering formula to compute the output

How should I interpret the result Δv_pp?

The calculator outputs Δv_pp in V. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: p_ac (W), pf (pu), f_sw (Hz), c_dc (F), v_dc (V). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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