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Energy-feedback electrical power-measuring system

A dynamometer system and energy feedback technology, applied in power metering, measuring devices, torque metering, etc., can solve problems such as low inverter efficiency, achieve the effects of reducing power loss, improving stability, and accurate detection

Inactive Publication Date: 2016-09-28
四川诚邦浩然测控技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect of low inverter efficiency of the existing electric dynamometer system and provide an energy feedback type electric dynamometer system

Method used

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Embodiment

[0018] Such as figure 1 As shown, the present invention includes a tested engine, a throttle controller, a torque sensor, a DC motor, a motor controller, an inverter unit and a central processing unit.

[0019] Among them, the throttle controller is connected with the engine under test, and controls the operation of the engine under test by controlling the fuel supply of the engine under test. It adopts the SH-MTM-L throttle controller produced by Anhui Jimin Electronic Technology Co., Ltd. . A DC motor is used to provide load to the engine under test. The torque sensor is respectively connected to the tested engine and the DC motor through a coupling, and is used to collect the torque and speed signals of the tested engine. It is preferably realized by using the GB-DTS torque sensor produced by Beijing Gongbiao Sensing Technology Co., Ltd. . The motor controller is connected with the excitation circuit of the DC motor, and is used for controlling the operation of the DC mo...

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PUM

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Abstract

The invention discloses an energy-feedback electrical power-measuring system, which comprises an engine to be measured. The system is characterized in that the system also comprises a throttle controller, a torque sensor, a DC motor, a motor controller, an inverter unit and a central processor, wherein the throttle controller and the torque sensor are connected with the engine to be measured; the DC motor is connected with the torque sensor; the motor controller and the inverter unit are connected with the DC motor; and the central processor is connected with the throttle controller and the motor controller. The inverter unit creatively adopts an LT494 acquisition chip to be combined with a novel peripheral circuit, so that electric energy loss can be greatly reduced, and inversion efficiency thereof is allowed to reach more than 98%; and the system can efficiently convert the energy output by the engine to be measured into electric energy and feed back the electric energy to a grid, and thus energy can be utilized more fully.

Description

technical field [0001] The invention relates to an electric dynamometer system, in particular to an energy feedback type electric dynamometer system. Background technique [0002] The output power of the engine is an important parameter to determine the performance of the engine. Therefore, the output power of the engine will be tested before leaving the factory. At present, the electric dynamometer system is usually used to test the power of the engine. The electric dynamometer system can convert the energy output by the engine into electric energy, and invert it into alternating current to feed back to the grid, which can save energy. However, the inverter efficiency of the existing electric dynamometer system is low, and the electric energy cannot be fully utilized. Contents of the invention [0003] The purpose of the present invention is to overcome the defect of low inverter efficiency of the existing electric dynamometer system, and provide an energy feedback type ...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/01G01L3/24
CPCG01L3/24H02J3/01H02J3/38Y02E40/40
Inventor 程社林曹诚军寇晓花张国胜刘乐乐隆先军邹家平
Owner 四川诚邦浩然测控技术有限公司
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