{
  "$type": "site.standard.document",
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  "description": "Embodiments of the present invention provide an inverter apparatus and a solar photovoltaic grid-connected system, related to the field of solar photovoltaic power generation technologies, to solve the problem that the energy consumption of a boost circuit and the switching loss of an inverter in…",
  "path": "/patents/989105",
  "publishedAt": "2013-07-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/381",
    "HUAWEI TECH CO LTD [CN]"
  ],
  "textContent": "Embodiments of the present invention provide an inverter apparatus and a solar photovoltaic grid-connected system, related to the field of solar photovoltaic power generation technologies, to solve the problem that the energy consumption of a boost circuit and the switching loss of an inverter in an existing inverter apparatus are great. In the embodiments, when the voltage of a direct current power supply for supplying power for an inverter apparatus is small, a boost circuit and the direct current power supply may simultaneously supply direct current electric energy to an inverter in the inverter apparatus directly. In this case, the inverter works in three-level inversion mode, not only reducing the energy consumption of the boost circuit but also reducing the switching loss of the inverter. Accordingly, when the inverter apparatus is applied to a solar photovoltaic grid-connected system, the efficiency of the entire system can be remarkably improved.",
  "title": "INVERTER DEVICE AND SOLAR GRID-CONNECTED PHOTOVOLTAIC SYSTEM USING SAME"
}