JPH0249400U

JPH0249400U -

Info

Publication number: JPH0249400U
Application number: JP12476388U
Authority: JP
Priority date: 1988-09-26
Filing date: 1988-09-26
Publication date: 1990-04-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す接続図、第２
図は本考案に使用されるインバータの制御回路の
一例を示す接続図、第３図は従来例の接続図であ
る。１：エンジン、２：発電機、５：交流電動機、
６：コンプレツサー、７：温度センサ、９：冷凍
機、１０：増速装置、１０ａ：プーリー、１０ｂ
：プーリー、１０ｃ：ベルト、１１：切り替えス
イツチ、１２：商用電源、１３：インバータ、１
４：マイクロコンピユータ。 Fig. 1 is a connection diagram showing one embodiment of the present invention;
The figure is a connection diagram showing an example of an inverter control circuit used in the present invention, and FIG. 3 is a connection diagram of a conventional example. 1: Engine, 2: Generator, 5: AC motor,
6: Compressor, 7: Temperature sensor, 9: Freezer, 10 : Speed increaser, 10a: Pulley, 10b
:Pulley, 10c: Belt, 11: Selector switch, 12: Commercial power supply, 13: Inverter, 1
4: Microcomputer.

Claims

[Claims for Utility Model Registration] 1. An engine, a generator, a speed increasing device connected between the rotating shaft of the engine and the shaft of the generator to increase the engine speed and drive the generator, and the output of the generator. It is equipped with an inverter connected to the side, an AC motor serving as a load of the inverter, and a control means such as a microcomputer, and when the inverter is started by a control signal from the control means, the voltage and frequency are gradually increased from a small value. The starting current of the AC motor is suppressed, and the inverter output is corrected and controlled to the target value by inputting a control signal that compares the target load setting and the actual value. and power supply equipment. 2. The power supply device according to claim 1, further comprising a commercial power source and a switching means, so that the inverter is driven by the commercial power source when the engine is stopped.