Direct frequency converter for a frequency-controlled AC electric drive, has switching function generation unit receiving input of signals, where output signals of switching function generation unit are received at input of switch
	FEDOROV S V; FAKHRULLINA A R
	2024-05-07
专利权人	FEDERAL STATE BUDGETARY EDUCATIONAL (BUDG-Non-standard)
申请日期	2024-05-07
专利号	RU227955-U1
成果简介	NOVELTY - The converter has a converter main body containing six analog-to-digital converters (1-7), a reference signal generator unit (8), six subtractors (9-14) and five lowest voltage selection units (15-19). A switch (22) is equipped with a reference voltage generator, where an output signal of the generator is fed to an input of an additional seventh analog-to-digital converter. The analog-to-digital converter is provided with an additional output bit to determine a polarity of input voltage. An output voltage code generation unit (20) receives the input of additional bits from outputs of the analog-to-digital converters. A switching function generation unit (21) receives an input of the signals from an output of the output voltage code generation unit, where the output signals of the switching function generation unit are received at the input of the switch containing eight power keys. USE - Direct frequency converter for a frequency-controlled AC electric drive. ADVANTAGE - The converter facilitates reduction in installed power of a direct frequency converter circuit, simplifies a circuit of a direct frequency converter by eliminating control and power elements when introducing a block for generating output voltage codes and a block for generating switching functions for performing logical operations and reduces complexity of a converter circuit design, which is expressed in a need for twelve conversion channels and arithmetic-logical operations. The converter achieves a set task, facilitates simplification of the circuit by eliminating control and power elements so as to reduce weight and size of indicators and installed power. DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of a direct frequency converter. 1-7Analog-to-digital converters 8Reference signal generator unit 9-14Subtractors 15-19Lowest voltage selection units 20Output voltage code generation unit 21Switching function generation unit 22Switch
IPC 分类号	H02M-005/27
国家	俄罗斯
专业领域	能源矿产
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/16844
专题	中国科学院新疆生态与地理研究所
作者单位	FEDERAL STATE BUDGETARY EDUCATIONAL (BUDG-Non-standard)
推荐引用方式 GB/T 7714	FEDOROV S V,FAKHRULLINA A R. Direct frequency converter for a frequency-controlled AC electric drive, has switching function generation unit receiving input of signals, where output signals of switching function generation unit are received at input of switch. RU227955-U1[P]. 2024.

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