JPS589095U

JPS589095U - Electric motor regenerative braking control device

Info

Publication number: JPS589095U
Application number: JP8783182U
Authority: JP
Inventors: 芦谷　正裕; 滋小山; 平松　義治
Original assignee: 三菱電機株式会社
Priority date: 1982-06-10
Filing date: 1982-06-10
Publication date: 1983-01-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は回生制動におけるチョッパ主回路つなぎ図、第
２図はこの考案の一実施例による回生制動における主回
路つなぎ図、第３図はこの考案の他の実施例による回生
制動における主回路つなぎ図、第４図は第１図の制御ブ
ロン、り図、第５図は第２図に示す実施例の制御ブロッ
ク図、第６図は第３図に示す他の実施例の制御ブロック
、第７図は従来方式の特性を示す特性波形図、第８図及
び第９図はこの考案の各実施例における特性を示す特性
波形図である。なお、図中同一符号は同一もしくは相当部分を示す。図
中、３・・・フィルタカンデンサ、５・・・チョッパ装
置、８・・・直流変流器、９・・・電機子、１０・・・
直列抵抗器、１１・・・抵抗短絡用スイッチ、１２・・
・可飽和変流器、１３・・′・抵抗短絡用サイリスクス
イッチ、２０・・・主電動機電流パターン発生器、２１
・・・比較増巾器、２２・・・移相器、３０・・・抵抗
短絡スイッチ投入指令発生器、３１・・・パルス発生器
、３２・・・遅延時限回路である。２１６− ２１７− ２１８１９− ２０−Figure 1 is a chopper main circuit connection diagram for regenerative braking, Figure 2 is a main circuit connection diagram for regenerative braking according to one embodiment of this invention, and Figure 3 is a main circuit connection diagram for regenerative braking according to another embodiment of this invention. 4 is a diagram showing the control block of FIG. 1, FIG. 5 is a control block diagram of the embodiment shown in FIG. 2, and FIG. 6 is a control block diagram of another embodiment shown in FIG. FIG. 7 is a characteristic waveform diagram showing the characteristics of the conventional system, and FIGS. 8 and 9 are characteristic waveform diagrams showing the characteristics in each embodiment of this invention. Note that the same reference numerals in the figures indicate the same or corresponding parts. In the figure, 3... Filter capacitor, 5... Chopper device, 8... DC transformer, 9... Armature, 10...
Series resistor, 11... Resistor short circuit switch, 12...
・Saturable current transformer, 13...′・Sirisk switch for resistor short circuit, 20...Main motor current pattern generator, 21
. . . Comparison amplifier, 22 . . . Phase shifter, 30 . 216- 217- 218 19- 20-

Claims

[Scope of utility model registration request]

A comparison amplifier compares the motor current pattern value and the motor current, determines the chopper phase in a phase shifter that operates according to the output of the comparison amplifier, and performs regenerative braking of the DC motor by controlling the chopper. In a motor, a resistor is inserted in series with the motor armature, a resistor shorting switch is provided in parallel with the resistor, and the above comparison amplification is performed at a predetermined time point at the same time as the time when the shorting switch is turned on or slightly earlier. 1. A regenerative braking control device for an electric motor, characterized in that the control device forcibly and temporarily narrows down the conductivity of the chopper by giving commands to both the chopper and the phase shifter.