Consequent-pole　permanent　magnet　(CPPM)　generator　with　trapezoidal　back　EMF　is　an　ideal　candidate　for　automotive　application,　and　accurate　calculation　about　DC-link　voltage　is　very　important　for　the　design　of　CPPM　generator.　Howerve,　the　leakage　inductance　of　CPPM　generator　can　affect　electrical　time　constant　and　current　waveform,　which　will　result　in　DC-link　voltage　error　between　the　practical　and　the　design　values.　In　this　paper,　the　DC-link　voltage　equation　is　deduced　based　on　current　equations　including　commutation　process,　and　in　which　the　influence　of　leakage　inductance　is　considered.　Experimental　results　verified　the　calculation　method　about　DC-link　voltage　of　CPPM　generator.