JPS6181792U

JPS6181792U -

Info

Publication number: JPS6181792U
Application number: JP16445184U
Authority: JP
Priority date: 1984-10-29
Filing date: 1984-10-29
Publication date: 1986-05-30
Anticipated expiration: 1999-10-29
Also published as: JPH0628956Y2

Description

[Brief explanation of the drawing]

第１図は本考案実施例のブロツク線図、第２，
３図は交流電圧ピーク値検出回路、第４，５図は
その電圧波形図、第６，７図はダイオードＯＲの
直流電圧比較回路である。１……順変換器、２……直流リンク部コンデン
サ、３……逆変換器、４……電動機、５……交流
電源、１０……交流電圧ピーク値検出回路、１１
……ダイオードＯＲ、ＴＲ……絶縁変圧器、ＺＤ
……ツエナーダイオード、ＰＣ……フオトカプラ
。 Fig. 1 is a block diagram of an embodiment of the present invention;
3 is an AC voltage peak value detection circuit, FIGS. 4 and 5 are voltage waveform diagrams thereof, and FIGS. 6 and 7 are diode OR DC voltage comparison circuits. DESCRIPTION OF SYMBOLS 1... Forward converter, 2... DC link capacitor, 3... Inverse converter, 4... Motor, 5... AC power supply, 10... AC voltage peak value detection circuit, 11
...Diode OR, TR...Isolation transformer, ZD
...Zener diode, PC...photocoupler.

補正昭６０．３．４図面の簡単な説明を次のように補正する。明細書第９頁第２行目を「流電圧比較回路、第
８，９図は制動時の逆流エネルギー処理を表わす
ブロツク線図である。」と補正する。Amendment 1986.3.4 The brief description of the drawing is amended as follows. The second line of page 9 of the specification is amended to read, ``The current voltage comparison circuit. Figures 8 and 9 are block diagrams representing backflow energy processing during braking.''

Claims

[Scope of Claim for Utility Model Registration] In an inverter-driven motor powered by an inverter consisting of a forward converter, a DC link capacitor, and an inverse converter, a regenerative signal circuit with the following configuration is used and the regenerative signal from the circuit is used to achieve the above-mentioned Either operate the forward converter as an inverse converter and return the regenerated power of the DC link to the AC power supply side, or insert a resistor into the DC link through a switching element and heat the regenerated power by passing current through this resistor. A power regeneration control device for an inverter-driven motor, characterized in that the power is dissipated as consumption, or the power is dissipated as consumption. Regenerative signal circuit; AC voltage peak value detection circuit 10 consisting of an isolation transformer TR inserted between the AC power supply, a rectifier SR connected to the secondary side of the isolation transformer TR, and a parallel circuit of a CR time constant circuit; A diode OR11 consisting of diodes D ₁ , D ₂ and a resistor R ₂ is connected between the diode OR11 and the DC link capacitor, with one input being the AC voltage peak value and the other input being the DC link capacitor voltage. It consists of an inserted Zener diode ZD and a photocoupler PC, and the isolated output of the photocoupler PC is used as a regenerative signal.