Power generator power generation facility

Patent metadata

Field	Value
Publication number	US-9490680-B2
Application number	US-201514804981-A
Country	US
Kind code	B2
Filing date	Jul 21, 2015
Priority date	Dec 27, 2010
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

In a power generation facility, there are provided a plurality of diesel engines, a plurality of turbochargers driven by exhaust gas from the diesel engines, a plurality of power generators connected to the plurality of turbochargers, a plurality of converters for converting AC power generated by the plurality of power generators to DC power, one inverter for converting the DC power outputted from the plurality of converters to AC power, and a main controller for controlling the converters in accordance with the AC power from the inverter, by which stable electric power can be generated.

First claim

The invention claimed is:

1. A power generation facility, comprising:
a plurality of exhaust gas generating sources;
a plurality of turbochargers driven by exhaust gas from the plurality of exhaust gas generating sources;
a plurality of power generators connected to the plurality of turbochargers;
a plurality of converters for converting AC power generated by the plurality of power generators to DC power;
one inverter or a plurality of inverters for converting the DC power output from the plurality of converters to AC power; and
a control device for controlling one of the plurality of exhaust gas generating sources, the plurality of turbochargers and the plurality of converters in accordance with the AC power from the one inverter or the plurality of inverters,
wherein each of the power generators comprises:
a power generator rotary shaft directly connected to a rotary shaft of each of the turbochargers;
a rotor fixed to the power generator rotary shaft; and a stator provided outside the rotor,

wherein the rotor includes:
an iron core fixed to the power generator rotary shaft, the iron core having a cylindrical shape;
a magnet fixed to an outer circumferential surface of the iron core and axially divided into a plurality of pieces; and
a retaining ring arranged on an outer circumferential surface of the magnet and axially divided into a plurality of pieces, and

wherein, in a direction of an axial direction of the power generator rotary shaft, (i) a length of the magnet is substantially the same as the length of the retaining ring and (ii) the length of the magnet and the length of the retaining ring are longer than the length of the iron core.

2. The power generation facility according to claim 1 , wherein the magnet has a ring shape or an arch shape, and has the divided pieces of a same outer diameter and a same axial length, and the retaining ring has a ring shape, has the divided pieces of a same outer diameter and a same axial length, and is fitted and fixed onto the outer circumferential surface of the magnet.

3. The power generation facility according to claim 1 , wherein between the magnet and the retaining ring, division positions in an axial direction are different.

4. The power generation facility according to claim 1 , wherein the stator has an iron core axially divided into a plurality of pieces and having a ring shape, and a coil wound around the iron core.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Yamashita Yukio
• Shiraishi Keiichi
• Ono Yoshihisa

Classifications

• F02B2037/122

  Control of rotational speed of the pump · CPC title

• F05B2220/40

  in turbochargers · CPC title

• H02K2213/12

  Machines characterised by the modularity of some components · CPC title

• F02D29/06

  peculiar to engines driving electric generators · CPC title

• H02K1/272

  the magnetisation axis of the magnets being perpendicular to the rotor axis · CPC title