Abstract:
PURPOSE: A hybrid PWM(Pulse Width Modulation) AC/DC converter having an active filtering function in a power supply system is provided to convert an AC voltage to a DC voltage and remove harmonic current by using an active power filter function. CONSTITUTION: The current(Isa,Isb,Isc) generated from power source(103) is the sum of the current(ILa,ILb,ILc) consumed in a non-linear load(102) and the current(IFa,IFb,IFc) inputted into a hybrid PWM AC/DC converter(400). The current(Isa,Isb,Isc) of the power source(103) becomes sinusoidal wave by removing harmonic current from the current(ILa,ILb,ILc) of the non-linear load(102). The hybrid PWM AC/DC converter(400) is formed with an inductor filter(401), a capacitor filter(402), a pulse width converter power stack(403), and an inductor filter(404). The inductor filter(401) is formed with a plurality of inductors(LF1,LF2,LF3).
Abstract translation:目的:提供一种在电源系统中具有有源滤波功能的混合PWM(脉宽调制)AC / DC转换器,以将交流电压转换为直流电压,并通过使用有功功率滤波器功能消除谐波电流。 构成:从电源(103)产生的电流(Isa,Isb,Isc)是在非线性负载(102)和电流(IFa,IFb,IFc)中消耗的电流(ILa,ILb,ILc)之和 )输入到混合PWM AC / DC转换器(400)中。 通过从非线性负载(102)的电流(ILa,ILb,ILc)去除谐波电流,电源(103)的电流(Isa,Isb,Isc)变为正弦波。 混合PWM AC / DC转换器(400)由电感滤波器(401),电容滤波器(402),脉宽转换器功率堆(403)和电感滤波器(404)构成。 电感器滤波器(401)形成有多个电感器(LF1,LF2,LF3)。
Abstract:
PURPOSE: A method for controlling compensation for the inequality power and the instant low voltage is provided to prevent stopping of a continuous progress line by the low voltage by compensating the inequality power and the instant low voltage and to gain dependence on the compensation by making the error to the minimum. CONSTITUTION: A method for controlling compensation for the inequality power and the instant low voltage includes a few stages. In the first stage the power voltage, the voltage of a filter and the output current of an inverter are measured and the current is calculated. In the second stage converting coordinates of 3 phases to those of 2 phases. In the third stage the power voltage is separated into the positive phase sequence component of voltage and negative phase sequence component of voltage. In the fourth stage the positive phase sequence component of voltage is compensated. In the fifth stage the negative phase sequence component of voltage is compensated. In the sixth stage the inverter output current is compensated in the basis of the compensated voltage. In the seventh stage the pulse width of a space vector is converted. In the eighth stage the inverter is controlled through the gate driving portion.
Abstract:
PURPOSE: A method for controlling compensation for the inequality power and the instant low voltage is provided to prevent stopping of a continuous progress line by the low voltage by compensating the inequality power and the instant low voltage and to gain dependence on the compensation by making the error to the minimum. CONSTITUTION: A method for controlling compensation for the inequality power and the instant low voltage includes a few stages. In the first stage the power voltage, the voltage of a filter and the output current of an inverter are measured and the current is calculated. In the second stage converting coordinates of 3 phases to those of 2 phases. In the third stage the power voltage is separated into the positive phase sequence component of voltage and negative phase sequence component of voltage. In the fourth stage the positive phase sequence component of voltage is compensated. In the fifth stage the negative phase sequence component of voltage is compensated. In the sixth stage the inverter output current is compensated in the basis of the compensated voltage. In the seventh stage the pulse width of a space vector is converted. In the eighth stage the inverter is controlled through the gate driving portion.
Abstract:
PURPOSE: A high voltage motor driving system is provided to drive the high voltage motor by using the low voltage components to reduce the energy consumption and to provide the high efficient operation. CONSTITUTION: The high voltage motor driving system comprises a three phase power supplier(1), a motor(2), three transformers, a voltage dropping unit, and a low voltage AC-AC alternative voltage controller having thyristors. Each secondary side of each transformer is connected between the three phase power supplier and the motor. Each primary side of each transformer is connected to the AC-AC alternative voltage controller. The AC-AC alternative voltage controller used to drop the power supplier voltage is connected to the three phase power supplier by Y-connection or delta-connection and shifts the phase by 30°. The phase of the dropped voltage is shifted by 180° by shifting the phase with 150° at the primary side of the transformer. The sum of the power source voltage used to drive the motor at steady state and the output voltage of the AC-AC alternative voltage controller used to vary the motor speed is supplied to the motor. At the initial operation stage, the AC-AC alternative voltage controller is turned off to prevent the initial overcurrent by forming the transformers as series connected inductors.
Abstract:
본 발명은 하이브리드 차량의 모터 구동 시스템 및 이의 제어 방법에 관한 것으로서, 더욱 상세하게는 전압 컨버터 고장시 DC링크 커패시터에 쌓인 고전압이 출력전압이 증대되는 직류변환장치를 통해 12V 전장부하로 방전되도록 한 하이브리드 차량의 모터 구동 시스템 및 이의 제어 방법에 관한 것이다. 이를 위해, 본 발명은 차량 주행을 위한 제1모터 및 제2모터; 제1모터를 구동 제어하는 제1인버터 및 제2모터를 구동 제어하는 제2인버터와; 직류 전압을 출력하는 직류전원용 배터리와; 직류전원용 배터리로부터 직류 전압을 상기 제1 및 제2인버터로 승압 또는 감압시켜 공급하고, 상기 제1인버터 또는 제2인버터로부터의 직류 전압을 상기 직류전원용 배터리측으로 감압 또는 승압시켜 공급하는 전압 컨버터와; 상기 직류전원용 배터리와 전압 컨버터 사이에 연결된 제1 및 제2메인릴레이; 상기 전압 컨버터와 제1 및 제2인버터 사이에 DC링크 커패시터의 고전압 에너지를 방전시킬 수 있도록 연결되는 직류변환장치와; 상기 직류변환장치에 연결되는 12V 보조배터리를 전원으로 하는 전장부하; 를 포함하여 구성된 것을 특징으로 하는 하이브리드 차량의 모터 구동 시스템 및 그 제어 방법을 제공한다. 하이브리드, 모터, 직류변환장치, DC링크 커패시터, 배터리, 고장, 제어
Abstract:
PURPOSE: A capacitor for inverter of a vehicle is provided to minimize flux leakage by being formed in the bus bar of a bus plate through an insulator. CONSTITUTION: In a capacitor for inverter of a vehicle, a plurality of a capacitor unit module(40) are received into a case. A power module is electrically connected with the capacitor unit module and unit modules. An insulating material(90) is made of epoxy resin and flows between the bus plate(60) An overlapping section(71) is extended to the outside of a plate body(61). A connector area(81) is electrically connected to the power module. A bus plate comprises the power module which is electrically connected with bus bar(70). The bus bar is coated in the connector area with the epoxy resin.
Abstract:
PURPOSE: A method for controlling charging voltage of 12V supplementary battery for hybrid vehicles is provided to accomplish continuous charging of a supplementary battery by switching on a main switch installed between a high voltage battery and a DC-DC converter even if the supplementary battery falls below 9V of the lower limit voltage. CONSTITUTION: The method for controlling charging voltage of 12V supplementary battery for hybrid vehicles compares a voltage of 12V supplementary battery with a high voltage battery and a lower limit voltage(V1) after a start is turned on. When the voltage of 12V supplementary battery falls below the lower limit voltage, in the supplementary battery side, the DC-DC converter carries out a power conversion with a high voltage side capacitor. Energy is delivered from the 12V supplementary battery to the high voltage side capacitor. The energy is charged in the high voltage side capacitor. The DC-DC converter carries out a power conversion from the high voltage side capacitor to the supplementary battery. The high voltage energy of the high voltage side capacitor is provided through the DC-DC converter to the 12V sub supplementary battery.
Abstract:
PURPOSE: A motor driving system of hybrid vehicle and a controlling method thereof are provided to prevent an counter electro-motive force of the motor generated in case of a main relay off from applying to an electric-powered air-conditioner inverter, and to control an auxiliary relay in case of a failure of a DC converter. CONSTITUTION: The motor driving system of hybrid vehicle is composed of first and second motors(M1,M2); first and second inverters(1,2); a battery(B) for a DC power supply; a voltage converter(3); a first and second main relays(SR1,SR2); a DC converter(4); and an electric-powered air-conditioner inverter(7). The first and second inverters drive-control the respective first motor and second motors. The voltage converter boosts or decompresses a direct current voltage from the battery for the DC power supply, and supply boosted or decompressed direct current voltage to the first and second inverters. The first and second main relays are connected between the battery for the DC power supply and the voltage converter. The DC converter and the electric-powered air-conditioner inverter are connected between the battery for the DC power supply and the first and second main relays.
Abstract:
PURPOSE: An apparatus and a method for preventing a secondary damage of a hybrid vehicle are provided to reduce energy quantity which is stored toward a DC link of an inverter in a condition of generating a fix mode which is same as the mode of a main switch off due to the low temperature of a motor. CONSTITUTION: An apparatus for preventing a secondary damage of a hybrid vehicle includes a DC-DC converter(10) generating an output voltage to increase a charge energy of a 12V battery, an automatic electric part(22) of 12V, and a switch(21). The DC-DC converter measures the temperature of a motor satisfying a condition, increase a system voltage into an overvoltage, while generating a power with an engine.