JPWO2016098410A1 - 電力変換装置及びこれを用いた電動パワーステアリング装置 - Google Patents
電力変換装置及びこれを用いた電動パワーステアリング装置 Download PDFInfo
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- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
- H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
- H02M7/53876—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output based on synthesising a desired voltage vector via the selection of appropriate fundamental voltage vectors, and corresponding dwelling times
Abstract
Description
平滑コンデンサ温度TcがTmaxより小さいときに、電力変換部200と電力変換部300の高調波重畳方式を間欠としない場合をケース1と定義する。ケース1では、平滑コンデンサ温度Tc<Tmaxのときに、高調波重畳方式の周期Ti0は、PWMキャリア周期に等しい。
一方、平滑コンデンサ温度TcがTmaxより小さいときに、電力変換部200と電力変換部300の高調波重畳方式を間欠としている場合をケース2と定義する。このときの高調波重畳方式の周期は、PWMキャリア周期よりも大きいTi2である。
モータ回転数RmがRminより大きいときに、電力変換部200と電力変換部300の高調波重畳方式を間欠としない場合をケース1と定義する。ケース1では、モータ回転数Rm>Rminのときに、高調波重畳方式の周期Ti0は、PWMキャリア周期に等しい。
一方、モータ回転数RmがRminより大きいときに、電力変換部200と電力変換部300の高調波重畳方式を間欠としている場合をケース2と定義する。このときの高調波重畳方式の周期は、PWMキャリア周期よりも大きいTi2である。
Claims (11)
- 直流電源から入力される直流電圧を交流電圧に変換してモータを制御する電力変換装置であって、
前記直流電圧を平滑化する平滑コンデンサと、
電力を変換するためのブリッジ回路を有する第1の電力変換部と、
電力を変換するためのブリッジ回路を有し、前記第1の電力変換部と並列に接続される第2の電力変換部と、
出力電圧ベクトル及びPWMキャリアに基づいてPWMパルスを生成する制御部と、を備え、
前記制御部は、第1の出力電圧ベクトルに基づいて前記第1の電力変換部の出力を制御するための第1のPWMパルスを生成するとともに、第2の出力電圧ベクトルに基づいて前記第2の電力変換部の出力を制御するための第2のPWMパルスを生成し、
前記制御部は、所定の出力電圧ベクトル値を、前記PWMキャリアの1周期内での平均値が当該所定の出力電圧ベクトル値となるような異なる2つ以上の出力電圧ベクトル値に補正をする補正部を有し、
前記補正部は、前記PWMキャリアの複数周期の中の1周期である第1の期間において、前記第1の出力電圧ベクトル値の前記補正を行い、かつ、前記PWMキャリアの複数周期の中の1周期であって前記第1の期間とは異なる第2の期間において、前記第2の出力電圧ベクトル値の前記補正を行う電力変換装置。 - 請求項1に記載の電力変換装置であって、
前記第1の電力変換部及び前記第2の電力変換部のそれぞれは、前記ブリッジ回路に流れる直流電流を検出して検出電流値を前記制御部に出力する電流検出器と、を有し、
前記第1の電力変換部の前記電流検出器は、前記第1の期間において前記直流電流を検出し、
前記第2の電力変換部の前記電流検出器は、前記第2の期間において前記直流電流を検出する電力変換装置。 - 請求項1又は2のいずれかに記載の電力変換装置であって、
前記平滑コンデンサの温度を検出する温度検出部を備え、
前記補正部は、前記平滑コンデンサの温度が所定の温度以上である場合に、前記第1の期間において前記第1の出力電圧ベクトル値の前記補正を行うとともに、前記第2の期間において前記第2の出力電圧ベクトル値の前記補正を行う電力変換装置。 - 請求項3に記載の電力変換装置であって、
前記補正部は、前記平滑コンデンサの温度が前記所定の温度より小さいときは、前記PWMキャリアの毎周期において、前記補正を行う電力変換装置。 - 請求項3に記載の電力変換装置であって、
N1を2以上の自然数とし、かつN2をN1より大きい自然数としたとき、
前記補正部は、前記平滑コンデンサの温度が前記所定の温度より小さいときは、前記PWMキャリアのN1周期に1回の周期で前記補正を行い、
さらに前記補正部は、前記平滑コンデンサの温度が前記所定の温度以上であるときは、前記PWMキャリアのN2周期に1回の周期で前記補正を行う電力変換装置。 - 請求項1ないし5のいずれか1項に記載の電力変換装置であって、
前記モータに備えられたロータの回転数を検出する回転数検出部を備え、
前記補正部は、前記ロータの回転数が所定の回転数以下であるときに、前記第1の期間において前記第1の出力電圧ベクトル値の前記補正を行うとともに、前記第2の期間において前記第2の出力電圧ベクトル値の前記補正を行う電力変換装置。 - 請求項6に記載の電力変換装置であって、
前記補正部は、前記ロータの回転数が前記所定の回転数より大きいときは、前記PWMキャリアの毎周期において、前記補正を行う電力変換装置。 - 請求項6に記載の電力変換装置であって、
N3を2以上の自然数とし、かつN4をN3より大きい自然数としたとき、
前記補正部は、前記ロータの回転数が前記所定の回転数より大きいときは、前記PWMキャリアのN3周期に1回の周期で前記補正を行い、
さらに前記補正部は、前記ロータの回転数が前記所定の回転数以下であるときは、前記PWMキャリアのN4周期に1回の周期で前記補正を行う電力変換装置。 - 請求項1ないし8のいずれか1項に記載の電力変換装置であって、
前記補正部は、前記第1又は第2のPWMパルスの変調率が所定の変調率以下であるときに、前記第1の期間において前記第1の出力電圧ベクトル値の前記補正を行うと共に、前記第2の期間において前記第2の出力電圧ベクトル値の前記補正を行う電力変換装置。 - 請求項1ないし9のいずれか1項に記載の電力変換装置であって、
前記平滑コンデンサは、前記第1の電力変換部に含まれる第1の平滑コンデンサと、前記第2の電力変換部に含まれる第2の平滑コンデンサと、を有し、
前記第1の電力変換部は、前記第1の平滑コンデンサの温度を検出する第1の温度検出部を有し、
前記第2の電力変換部は、前記第2の平滑コンデンサの温度を検出する第2の温度検出部を有し、
前記補正部は、前記第1の平滑コンデンサの温度が所定の温度以上である場合に、前記第1の期間において前記第1の出力電圧ベクトル値の前記補正を行う電力変換装置。 - 請求項1ないし10のいずれか1項に記載の電力変換装置と、
前記電力変換装置によって制御される前記モータと、を備えた電動パワーステアリング装置。
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