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    • 1. 发明公开
    • PULSWECHSELRICHTER
    • 逆变脉冲
    • EP3278440A1
    • 2018-02-07
    • EP16702396.9
    • 2016-01-29
    • Robert Bosch GmbH
    • BURGER, Dennis
    • H02M7/00H02M7/48H02M7/537H02M7/5387
    • H02M7/537H02M1/44H02M7/003H02M7/48H02M7/4826H02M7/5387
    • The invention relates to a pulse-controlled inverter (1) having an input circuit (2) that is designed to provide an input DC voltage (5) between a high-side input (2a) and a low-side input (2b), wherein the input circuit (2) has a first high-side stray capacitance (21a), a first low-side stray capacitance (21b), a first high-side stray inductance (22a, 22a') and a first low-side stray inductance (22b, 22b'); having a busbar arrangement (3) that is designed to electrically connect the high-side input (2a) to a high-side connection (4a) and to electrically connect the low-side input (2b) to a low-side connection (4b), wherein the busbar arrangement (3) has second stray capacitances (31a, 31b) and second stray inductances (32a, 32b); and having an n-phase inverter module (4), n>l, that is electrically coupled to the high-side connection (4a) and to the low-side connection (4b) and is designed to convert the input DC voltage (5) into an n-phase output AC voltage (6), wherein the inverter module (4) has third stray capacitances (41a, 41b) and third stray inductances (42a, 42b); wherein the sum of the high-side stray capacitances (21a, 31a, 41a) is equal to the sum of the low-side stray capacitances (21b, 31b, 41b) and the sum of the high-side stray inductances (22a, 22a', 32a, 42a) is equal to the sum of the low-side stray inductances (22b, 22b', 32b, 42b).
    • 6. 发明公开
    • A METHOD FOR CONTROLLING A CONVERTER
    • 一种用于控制转换器
    • EP1407532A1
    • 2004-04-14
    • EP02744021.3
    • 2002-06-19
    • ABB AB
    • NORRGA, StaffanJONSSON, Tomas
    • H02M7/48H02M7/5395
    • H02M7/487H02M7/4826H02M2007/4811
    • The invention relates to a method for controlling a VSC-converter provided with a resonant circuit (16). In connection with the effectuation of an intended commutation process ordered by the modulator (30), the control device (24) is made to send control signals to the current valves (2, 3) and auxiliary valve (18) that are taking part in the commutation process, for turning on or turning off thereof, at instants (ti) determined on the basis of a desired commutation instant (ttr) given by the modulator (30) and a calculation algorithm, whichis based upon values of the phase current and the intermediate link voltage and knowloedg about the influence the components included in the converter have on the intended commutation process, said calculation algorithm being elaborated in consideration of the condition that the desired commutation instant (t*tr) is to coincide with an equivalent transition instant (ttr) for the phase voltage, which equivalent transition instant (ttr) is estimaged with the aid of knowledge about the influence the components included in the convernter have on the transition of the phase voltage (uph(t)) during the intended commutation process.
    • 9. 发明公开
    • A VOLTAGE CLAMPED PARALLEL RESONANT CONVERTER WITH CONTROLLABLE DUTY CYCLE
    • 具有可控TASTVERHÄLTNIPOWER LIMITED并联谐振转换器
    • EP0786166A1
    • 1997-07-30
    • EP95925635.0
    • 1995-07-11
    • ELECTRONIC POWER CONDITIONING, INC.
    • LAUW, Hian, K.ZEDWICK, Robert, S.
    • H02M3H02M7
    • H02M7/4826
    • A high efficiency static voltage clamped parallel resonant converter for converting power between two AC and/or DC circuits includes a link circuit (30) between an input switch circuit (20) and an output switch circuit (10). The link circuit comprises a parallel resonant circuit and link switch elements (Sc1 and Sc2) which are switched to generate a unipolar train of link voltage pulses. All of the switches are 'soft-switched' on and off at substantially zero voltage or zero current. Each link voltage pulse consists of a zero segment and a non-zero segment. The duty cycle of these voltage pulses is controllable by the link switches and such that the duration of the zero and non-zero segments are independently controllable. Pulse width modulation (PWM) and pulse area modulation (PAM) can be applied for reduced filtering requirements and maintaining high efficiency for operation at fractional load conditions. The link voltage is clamped to a maximum voltage during the non-zero segment of each link voltage pulse. Resonant oscillation due to the resonant circuit is active only during the transitions between the zero and non-zero voltage levels of the link voltage pulses. As a result, all converter components will be exposed to voltage and current levels which are higher than the load voltage and current levels by just a small fraction.