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Inverter control system

A control system and inverter technology, which is applied in the direction of converting irreversible DC power input into AC power output, which can solve problems such as system instability and achieve the effect of reducing errors.

Inactive Publication Date: 2012-09-19
江苏田娘农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the harmonics, glitches and other interference factors of the grid voltage, the system will be unstable

Method used

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  • Inverter control system

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Embodiment Construction

[0007] Hereinafter, preferred embodiments of the present invention are given in conjunction with the drawings to illustrate the technical solutions of the present invention in detail.

[0008] Such as figure 1 As shown, the inverter control system of the present invention includes a conversion module, a current and voltage sampling module, a regulator, a calculator, a PWM generator, an algorithm module, a drive amplifier circuit, a controller, a phase locked loop module, a current and voltage sampling module, and a conversion Module and regulator connection, regulator is connected with conversion module, calculator, calculator is connected with PWM generator, algorithm module, phase locked loop module, drive amplifier circuit is connected with PWM generator, controller, algorithm module is connected with phase locked loop Module and controller connection.

[0009] The input DC grid power is converted into AC power by the conversion module. After the AC power is sampled by the curr...

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Abstract

The invention discloses an inverter control system which comprises a conversion module, a current voltage sampling module, a regulator, a calculator, a PWM (Pulse Width Modulation) generator, an algorithm module, a drive amplifier circuit, a controller and a phase-locked loop module, wherein the current voltage sampling module is connected with the conversion module and the regulator; the regulator is connected with the conversion module and the calculator; the calculator is connected with the PWM generator, the algorithm module and the phase-locked loop module; the drive amplifier circuit is connected with the PWM generator and the controller; and the algorithm module is connected with the phase-locked loop module and the controller. The inputted direct-current network source is converted into alternating-current power supply by the conversion module, and the alternating-current power supply is sampled by the current voltage sampling module, if an error is generated when the sampled voltage or current is compared with a reference value, the sampled voltage or current is regulated by the regulator. With the inverter control system, the system stability caused by harmonic wave and voltage spikes of the network voltage and other interference factors is overcome, and furthermore, the error is reduced.

Description

Technical field [0001] The invention relates to an inverter, in particular to an inverter control system. Background technique [0002] The inverter (inverter) converts direct current (battery, storage battery) into alternating current (usually 220v50HZ sine or square wave). In layman's terms, an inverter is a device that converts direct current (DC) into alternating current (AC). The inverter consists of an inverter bridge, control logic and filter circuit. The inverter is widely used in air conditioners, home theaters, Electric grinding wheel, electric tools, sewing machine, DVD, VCD, computer, TV, washing machine, range hood, refrigerator, video recorder, massager, fan, lighting, etc. Due to the harmonics, burrs and other interference factors of the grid voltage, the system will be unstable. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide an inverter control system, which overcomes the system instability caused by ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/42
Inventor 高健浩
Owner 江苏田娘农业科技有限公司