Multi-machine system and synchronization method

A technology of multi-machine system and synchronization signal, applied in the field of multi-machine system, to achieve the effect of source synchronization function, simple hardware connection and good system stability

Inactive Publication Date: 2015-09-02
ITECH ELECTRONICS NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-machine system composed of multiple electronic devices based on the same clock source and control source and its synchronization method, without the need to build additional synchronization circuits, and solve the synchronization problem of various electronic devices in the multi-machine system

Method used

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Embodiment 1

[0026] Such as figure 1 As shown, the first embodiment takes an AC and DC power supply as an example, including an AC-DC conversion module, a power amplification module, a reference generation unit, a voltage sampling unit, a current sampling unit, a control unit, an error amplification unit and a synchronization module. The AC-DC conversion module converts the commercial power into direct current as the direct current power input of the power amplifier module, and the power amplifier module amplifies the input signal and then outputs it. The voltage sampling unit and the current acquisition unit respectively collect the voltage and current at the output end of the power amplification module, convert it into a digital signal through the AD conversion module, and then transmit it to the control unit as the instantaneous value of the output voltage and output current, which are used to calculate the effective value of the voltage and the effective current Value, active power, re...

Embodiment 2

[0034] When multiple AC and DC power supplies are connected in parallel to form a single-phase AC power system, one of the power supplies is configured as a master, and the rest are configured as slaves. The synchronous trigger signal of the host comes from the DSP of the machine, the cycle synchronous signal is generated by the waveform reference after the waveform zero-crossing processing, the synchronous opening and closing signal comes from the host computer, and the system fault alarm signal comes from the host computer. The synchronization signal input end of the synchronization module of the slave machine is connected with the synchronization signal output end of the synchronization module of the master machine, and receives the synchronization signal sent by the master machine. When multiple machines are connected in parallel to form a single-phase power supply, the connection between the error amplifier unit and the power amplifier module of the slave machine is discon...

Embodiment 3

[0036]When at least two AC power supplies are connected to form a multi-phase AC power supply system, one of the power supplies is configured as a master, and the rest are configured as slaves; the synchronization trigger signal of the master comes from the local DSP, and the cycle synchronization signal is processed by the waveform reference through waveform zero-crossing Generated later, the synchronous opening and closing signal comes from the host computer, and the system failure alarm signal comes from the host computer. The synchronization signal input end of the synchronization module of the slave machine is connected with the synchronization signal output end of the synchronization module of the master machine, and receives the synchronization signal sent by the master machine.

[0037] Figure 4 The synchronous control flowchart for the multi-phase AC power system includes the following steps:

[0038] (1) Receive the synchronous opening signal;

[0039] (2) Master ...

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Abstract

The invention relates to the field of a multi-machine test system formed by multiple electronic devices, and discloses an electronic device whose internal part is integrated with a synchronization module. Each electronic device can be configured into the role of a master machine or a slave machine, wherein the master machine provides synchronization signals for other slave machines, the synchronization signals comprise synchronization clock signals and synchronization control signals, the slave machines receive and execute the synchronization signals sent by the master machine at the same time, and the operating state of the whole synchronization system is coordinated and allocated. The multi-machine system formed by the multiple electronic devices is simple in hardware connection, two types of synchronization signal terminals are only required to be sequentially connected, the master device and the slave device are configured on software, all of the slave devices are uniformly dispatched and controlled by the master device to operate, and the master device and the slave devices adopts the same clock source and the same control source, thereby ensuring synchronization control of the multiple machines, and realizing a synchronization function of the system.

Description

technical field [0001] The invention relates to the field of multi-machine systems composed of multiple electronic devices, and in particular to the reference source synchronization technology of the multi-machine systems. Background technique [0002] In programmable electronic test equipment, take an AC and DC power supply as an example. AC and DC power supplies are widely used in scientific research, economic construction, military facilities, medical instruments, and people's lives. They are the basis of electronic and electromechanical equipment. Provide high-quality electric energy for all electrical equipment and devices. It includes: a power amplification module, power amplification output; a reference generation unit, performing amplitude, frequency, phase synthesis, output waveform reference; a sampling unit, sampling the current and voltage of the output terminal of the power amplification module; an error amplification unit, input Waveform reference and voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/088
Inventor 马海波其他发明人请求不公开姓名
Owner ITECH ELECTRONICS NANJING
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