{
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  "description": "There is provided a power conversion device capable of eliminating a disadvantage of a sharp temperature rise in a switching element by using a discontinuous modulation method. The power conversion device includes a phase voltage command operation unit which calculates a sinusoidal modulation…",
  "path": "/patents/1278789",
  "publishedAt": "2020-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02P27/08",
    "SANDEN HOLDINGS CORPORATION"
  ],
  "textContent": "There is provided a power conversion device capable of eliminating a disadvantage of a sharp temperature rise in a switching element by using a discontinuous modulation method. The power conversion device includes a phase voltage command operation unit which calculates a sinusoidal modulation voltage command value to be applied to a motor , an inter-line modulation operation unit which, based on the sinusoidal modulation voltage command value, calculates a discontinuous modulation voltage command value for allowing an ON/OFF state of a switching element of one phase of a three-phase inverter circuit to be fixed, and modulating ON/OFF states of switching elements of other two phases, and a PWM signal generation unit . The inter-line modulation operation unit sets a switching density of the switching element of at least one phase to a value different from that of the other phase.",
  "title": "POWER CONVERSION DEVICE"
}