Inductively coupled AC power transfer
A technology of alternating current and induced voltage, applied in transmission systems, near-field transmission systems, conversion of AC power input to AC power output, etc., can solve problems such as low efficiency
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[0031] Figure 1 is a well-known diagram in the power system and is used to describe how electrical energy is transferred from a generator to another generator or load. The first generator has an output voltage V 1 , And through the inductance L 1 Connect to the second voltage V 2 . If v 1 And V 2 The phase angle between is α, then the transmission power is
[0032] P = V 1 V 2 sin ( α ) X
[0033] Where X is the inductance L 1 Reactance at operating frequency. This is a general formula represented by common symbols in power system analysis.
[0034] In the IPT system, the diagram can be interpreted slightly differently as shown in the circuit of Figure 2. In this case, V 1 Is the pickup coil L by the current flowing through the IPT track 1 The voltage induced in. Therefore, V 1 =jωMI, where I is the rail current, V 2 Now it is the voltage on the tuning capacitor C, and it is the resonant voltage in the IPT system. L 1 And C form a parallel res...
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