JPH0249386U - - Google Patents
Info
- Publication number
- JPH0249386U JPH0249386U JP12778988U JP12778988U JPH0249386U JP H0249386 U JPH0249386 U JP H0249386U JP 12778988 U JP12778988 U JP 12778988U JP 12778988 U JP12778988 U JP 12778988U JP H0249386 U JPH0249386 U JP H0249386U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- pulse width
- width modulation
- pwm inverter
- type pwm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001934 delay Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図はこの考案の一実施例の電圧型ＰＷＭイ
ンバータ装置の構成を示すブロツク図、第２図は
第１図の動作を示すタイムチヤート、第３図は電
圧型ＰＷＭインバータ装置の既提案例の構成を示
すブロツク図、第４図および第５図はそれぞれ第
３図の各部のタイムチヤートである。
１……直流電源、２Ａ〜２Ｄ……スイツチング
素子、１１……電圧型ＰＷＭインバータ本体、１
２……電圧検出回路、１３……平均誤差電圧検出
部、１４……加算器、１５……パルス幅変調部、
１６……デツドタイム発生部、２５……リセツト
回路。
Fig. 1 is a block diagram showing the configuration of a voltage type PWM inverter device according to an embodiment of this invention, Fig. 2 is a time chart showing the operation of Fig. 1, and Fig. 3 is an already proposed example of a voltage type PWM inverter device. 4 and 5 are time charts of each part of FIG. 3, respectively. 1...DC power supply, 2A to 2D...Switching element, 11...Voltage type PWM inverter main body, 1
2... Voltage detection circuit, 13... Average error voltage detection section, 14... Adder, 15... Pulse width modulation section,
16...Dead time generating section, 25...Reset circuit.
Claims (1)
型ＰＷＭインバータ本体と、この電圧型ＰＷＭイ
ンバータ本体の出力電圧を検出する電圧検出回路
と、設定電圧と前記電圧検出回路により検出した
電圧型ＰＷＭインバータ本体の出力電圧との平均
誤差電圧をパルス幅変調用搬送波電圧の１周期毎
に検出して前記パルス幅変調用搬送波電圧の１周
期間保持する平均誤差電圧検出部と、この平均誤
差電圧検出部から出力される平均誤差電圧を前記
設定電圧に加算する加算器と、この加算器の出力
電圧を前記パルス幅変調用搬送波電圧でパルス幅
変調して前記電圧型ＰＷＭインバータ本体の複数
のスイツチング素子のオンオフ駆動用の矩形波信
号をそれぞれ出力するパルス幅変調部と、このパ
ルス幅変調部から出力される各矩形波信号の前縁
を所定時間遅らせて前記複数のスイツチング素子
に与えるデツドタイム発生部と、前記設定電圧の
符号反転を検出して前記平均誤差電圧検出部内の
積分器をリセツトするリセツト回路とを備えた電
圧型ＰＷＭインバータ装置。 A DC power supply, a voltage-type PWM inverter body supplied with power from the DC power supply, a voltage detection circuit that detects the output voltage of the voltage-type PWM inverter body, and a set voltage and the voltage-type PWM inverter body detected by the voltage detection circuit. an average error voltage detection unit that detects an average error voltage with respect to the output voltage for each cycle of the pulse width modulation carrier voltage and holds it for one cycle of the pulse width modulation carrier voltage; an adder that adds the output average error voltage to the set voltage; and an adder that pulse width modulates the output voltage of the adder with the pulse width modulation carrier voltage to turn on and off a plurality of switching elements of the voltage type PWM inverter main body. a pulse width modulation section that outputs each rectangular wave signal for driving; a dead time generation section that delays the leading edge of each rectangular wave signal output from the pulse width modulation section by a predetermined time and applies it to the plurality of switching elements; A voltage type PWM inverter device comprising: a reset circuit that detects a sign reversal of a set voltage and resets an integrator in the average error voltage detection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12778988U JPH0249386U (en) | 1988-09-27 | 1988-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12778988U JPH0249386U (en) | 1988-09-27 | 1988-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0249386U true JPH0249386U (en) | 1990-04-05 |
Family
ID=31380533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12778988U Pending JPH0249386U (en) | 1988-09-27 | 1988-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166558A (en) * | 2004-12-06 | 2006-06-22 | Yanmar Co Ltd | Method of controlling inverter |
-
1988
- 1988-09-27 JP JP12778988U patent/JPH0249386U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166558A (en) * | 2004-12-06 | 2006-06-22 | Yanmar Co Ltd | Method of controlling inverter |
| JP4611009B2 (en) * | 2004-12-06 | 2011-01-12 | ヤンマー株式会社 | Inverter control method |
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