RU95104195A - Method for control of pulse secondary power supply - Google Patents

Method for control of pulse secondary power supply

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Publication number
RU95104195A
RU95104195A RU95104195/07A RU95104195A RU95104195A RU 95104195 A RU95104195 A RU 95104195A RU 95104195/07 A RU95104195/07 A RU 95104195/07A RU 95104195 A RU95104195 A RU 95104195A RU 95104195 A RU95104195 A RU 95104195A
Authority
RU
Russia
Prior art keywords
duration
control
output current
period
sequences
Prior art date
Application number
RU95104195/07A
Other languages
Russian (ru)
Other versions
RU2091972C1 (en
Inventor
Н.В. Антоневич
М.В. Кондратьев
Original Assignee
Н.В. Антоневич
М.В. Кондратьев
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Н.В. Антоневич, М.В. Кондратьев filed Critical Н.В. Антоневич
Priority to RU95104195/07A priority Critical patent/RU2091972C1/en
Publication of RU95104195A publication Critical patent/RU95104195A/en
Application granted granted Critical
Publication of RU2091972C1 publication Critical patent/RU2091972C1/en

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  • Dc-Dc Converters (AREA)

Abstract

FIELD: power converters. SUBSTANCE: method involves generation of two pairs of pulse sequences which are shifted with respect to each other by half period, measurement of output current of pulse secondary power supply, comparison of measured output current to given level, detection of mismatch signal, use of received pairs of pulse sequences for control of power transistors of two single-cycle bridge converters which are connected in parallel to output. In addition method provides control by means of variation in duration of pulses of all sequences in order to change ratio of duration of power accumulation and storage processes in magnetic field of choke transformers under constant total duration of said processes which is equal to half period. Duration of processes of power transmission to load circuit (or return to primary power supply in load circuit mode x. x) is kept constant and is equal to half of period. EFFECT: increased efficiency of control in stabilization mode of output current including variation in load from idle state to short circuit. 2 dwg

Claims (1)

Изобретение относится к преобразовательной технике и может быть использовано для управления источниками вторичного электропитания при преобразовании постоянного тока с одним уровнем напряжения в постоянный ток с другим уровнем напряжения с промежуточным высокочастотным преобразованием. Цель: повышение эффективности управления при импульсных изменениях сопротивления нагрузки импульсных источников вторичного электропитания (ИВЭП) в режиме стабилизации выходного тока, включая изменение нагрузки от холостого хода до короткого замыкания. Это достигается в предлагаемом способе управления, при котором формируются две пары последовательностей импульсов, сдвинутые одна относительно другой на половину периода, измеряют значение выходного тока ИВЭП, сравнивают изморенное значение выходного тока с заданным уровнем, выделяют сигнал рассогласования и управляют им полученными парами последовательностей импульсов, которыми управляют силовыми транзисторами двух однотактных мостовых преобразователей, включенных по выходу параллельно, при этом особенностью является то, что управление осуществляют путем изменения длительности импульсов всех последовательностей, при котором изменяется соотношение длительностей процессов накопления и сохранения энергии в магнитном поле дроссель-трансформаторов при постоянной суммарной длительности этих процессов, равной половине периода, а длительность процесса передачи энергии в цепь нагрузки (или возврата в первичный источник питания в режиме холостого хода цепи нагрузки, поддерживается постоянной и равной половине периода.The invention relates to a conversion technique and can be used to control secondary power sources when converting direct current with one voltage level to direct current with another voltage level with intermediate high-frequency conversion. Purpose: increasing control efficiency during pulsed changes in the load resistance of pulsed secondary power sources (IWEP) in the mode of stabilization of the output current, including changing the load from idle to short circuit. This is achieved in the proposed control method, in which two pairs of sequences of pulses are formed, shifted one relative to the other by half a period, measure the value of the output current of the IWEP, compare the measured value of the output current with a given level, isolate the mismatch signal and control it with the received pairs of pulse sequences, which they control the power transistors of two single-cycle bridge converters connected in parallel with the output, while the feature is that Circulation is carried out by changing the duration of the pulses of all sequences, in which the ratio of the duration of the processes of accumulation and conservation of energy in the magnetic field of the choke transformers changes with a constant total duration of these processes equal to half the period, and the duration of the process of energy transfer to the load circuit (or return to the primary source power supply in idle mode of the load circuit, is maintained constant and equal to half the period.
RU95104195/07A 1995-03-27 1995-03-27 Method of control of pulsed source of secondary power supply RU2091972C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95104195/07A RU2091972C1 (en) 1995-03-27 1995-03-27 Method of control of pulsed source of secondary power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95104195/07A RU2091972C1 (en) 1995-03-27 1995-03-27 Method of control of pulsed source of secondary power supply

Publications (2)

Publication Number Publication Date
RU95104195A true RU95104195A (en) 1996-12-20
RU2091972C1 RU2091972C1 (en) 1997-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU95104195/07A RU2091972C1 (en) 1995-03-27 1995-03-27 Method of control of pulsed source of secondary power supply

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RU (1) RU2091972C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100975485B1 (en) 2006-03-22 2010-08-11 미쓰비시덴키 가부시키가이샤 Bidirectional step-up/step-down dc/dc converter apparatus, railway coach drive control system, railway feeder system

Also Published As

Publication number Publication date
RU2091972C1 (en) 1997-09-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20050328