JP2012101673A5

JP2012101673A5 -

Info

Publication number: JP2012101673A5
Application number: JP2010251656A
Authority: JP
Filing date: 2010-11-10
Publication date: 2013-11-21
Anticipated expiration: 2030-11-10

Description

上記目的を達成するために本発明による船舶電力システムは、複数の固定子巻線を有する多巻線電動機と、蓄電池に接続され、一方は第１インバータを介して前記多巻線電動機の固定子巻線の内の１つを電力制御し、他方は第２インバータを介して船内負荷へ供給する電力の一部を分担制御するインバータ装置を多巻線電動機の固定子巻線数分だけ複数設け、この複数のインバータ装置で前記船内負荷に電力供給すると共に多巻線電動機を駆動したり、或いはスイッチを介して複数のインバータ装置の一部を多巻線電動機の巻線から切離し、その切離したインバータ装置で他の非推進用電動機を駆動するよう構成した船舶電力システムにおいて、前記各インバータ装置に第１のインバータの出力電力を検出する電力検出器を設け、各電力検出器で検出した電力の偏差に応じて前記船内負荷へ電力供給する前記各インバータ装置の第２のインバータの電力量を分担制御することにより、各インバータ装置に配置されている蓄電池の充電状態がほぼ等しくなるよう制御する制御装置を備えたことを特徴とする船舶電力システムにある。
To achieve the above object, a marine power system according to the present invention is connected to a multi-winding motor having a plurality of stator windings and a storage battery, one of which is a stator of the multi-winding motor via a first inverter. Multiple inverters are provided for the number of stator windings of a multi-winding motor that controls the power of one of the windings and controls the sharing of part of the power supplied to the ship load via the second inverter. In addition, the plurality of inverter devices can supply power to the inboard load and drive a multi-winding motor, or a part of the plurality of inverter devices can be disconnected from the windings of the multi-winding motor via a switch . in marine power system configured to drive other non propulsion motor with an inverter device is provided with a power detector for detecting the output power of the first inverter to the respective inverter, each power detected In by sharing control the amount of power of the second inverter of the power supplies each inverter device to the ship load in accordance with the detected power deviation of almost equal state of charge of the storage battery is disposed in the inverter apparatus The ship power system is provided with a control device for controlling the power supply.

Claims

A multi-winding motor having a plurality of stator windings and a storage battery, one of which controls the power of one of the stator windings of the multi-winding motor via a first inverter, and the other is a first (2) A plurality of inverter devices corresponding to the number of stator windings of a multi-winding motor are provided to control part of the power supplied to the ship load via the inverter, and the plurality of inverter devices supply power to the ship load. The multi-winding motor is driven, or a part of the plurality of inverter devices is disconnected from the windings of the multi-winding motor via a switch, and the non-propulsion motor is driven by the separated inverter device. In the ship power system,
A first power detector that detects the output power of the first inverter is provided in each inverter device, and the first inverter of each inverter device that supplies power to the inboard load according to the deviation of the power detected by each power detector. A ship power system comprising: a control device that controls the amount of power of the two inverters so that the charge states of the storage batteries arranged in each inverter device become substantially equal.

Output power to be fed to the propulsion motor of the first inverter and output power to be fed to the non-propulsion motor during a period when at least one of the inverter devices is feeding power to the non-propulsion motor by switching. And the output power of the second inverter of the inverter device with the smaller output power is increased with respect to the output power of the second inverter of the other inverter device, and the second of the inverter device with the larger output power The ship power system according to claim 1, wherein the output power of the inverter is reduced with respect to the output power of the second inverter of another inverter device.

In the case of two stator windings and inverter devices of a multi-winding motor,
Each inverter device is provided with a second power detector for detecting the output power of the second inverter, and the deviation value of the power detected by the first power detector is reduced to ½ of the added value of the detected power. The addition and subtraction values are calculated by adding and subtracting 1/2, and the electric power of the propulsion motor detected by the first electric power detector is compared with the electric power of the non-propulsion motor. If the electric power of the non-propulsion motor is controlled, the output power of the second inverter on the propulsion motor side is controlled to be the subtraction value, and the output power of the second inverter on the non-propulsion motor side is the addition value. When the electric power of the propulsion motor is smaller, the output power of the second inverter on the propulsion motor side is controlled to become the added value, and the non-propulsion motor Second invar on the side Claim 1 or 2 marine power system according to the output power obtained by controlling so that said subtraction value.