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Device, system and method for monitoring efficiency of hydro-electric generating set

A technology of unit efficiency and monitoring device, which is applied in the fields of hydropower generation, safety devices, engine components, etc., can solve the problems of inconsistency and deviation of the efficiency of prototype turbines, and achieve the effect of accurate data collection and accurate efficiency

Inactive Publication Date: 2011-07-06
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

Practice has proved that due to various reasons, the efficiency of the prototype turbine is not consistent with the value converted from the model efficiency, and sometimes there is even a large deviation

Method used

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  • Device, system and method for monitoring efficiency of hydro-electric generating set
  • Device, system and method for monitoring efficiency of hydro-electric generating set
  • Device, system and method for monitoring efficiency of hydro-electric generating set

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Embodiment Construction

[0054] A specific embodiment of the present invention will be described below in conjunction with the accompanying drawings.

[0055] The energy conversion process in the working process of the hydraulic unit is: the gravitational potential energy of the upstream water is converted into the kinetic energy of the water flow, and when the water flow passes through the water turbine, the kinetic energy is transferred to the water turbine, and the water turbine drives the generator to rotate and convert the kinetic energy into electrical energy. There are three main factors affecting the efficiency of hydraulic units: the flow rate of the turbine, the active power of the generator and the working head of the unit. Therefore, the device provided by the present invention mainly measures the above three parameters and calculates the working efficiency of the hydraulic unit.

[0056] Specifically, such as figure 1 As shown, it is a schematic structural diagram of the hydraulic unit e...

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Abstract

The invention provides a device, a system and a method for monitoring the efficiency of a hydro-electric generating set. The device comprises a digital signal processor (DSP) main control chip module, a hydraulic turbine by-pass flow measurement module, a generator active power measurement module, a set working head measurement module and a human-machine interaction module, wherein the DSP main control chip module is used for controlling the measurement operation of the hydraulic turbine by-pass flow measurement module, the generator active power measurement module and the set working head measurement module, controlling the human-machine interaction module and performing operation processing on data acquired by measurement to acquire a result which reflects the efficiency characteristic of the hydro-electric generating set through computation. Therefore, the device for monitoring the efficiency of the hydro-electric generating set has high-speed and accurate capabilities of acquiring, analyzing, processing and transmitting the data and can be used for relatively accurately measuring the by-pass flow of a hydraulic turbine, the active power of a generator and the working head of aset, so that the efficiencies of the hydro-electric generating set and the hydraulic turbine can be accurately computed.

Description

technical field [0001] The invention relates to the field of state monitoring of hydraulic generating sets, in particular to an efficiency monitoring device, system and method for hydraulic generating sets. Background technique [0002] In a hydropower station, the efficiency of a hydroelectric generating set is one of the important indicators for testing the performance of a hydroelectric generating set. Improving the efficiency of hydroelectric generating units is of great significance to the economic operation of hydropower stations. [0003] The efficiency test of hydroelectric generator sets is to measure the efficiency and water consumption rate under different working conditions, so as to draw the total water consumption rate curve and the total efficiency curve, and formulate a reasonable load distribution plan between units or between power stations. The specific measurement principle is: [0004] n u =P / γQH [0005] where: η u : total efficiency of the hydraul...

Claims

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Application Information

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IPC IPC(8): F03B15/00
CPCY02E10/226Y02E10/20
Inventor 周建中黄志伟李超顺罗志猛贺徽肖汉杨梦起卢有麟许剑洪熊磊王学敏许宗光
Owner HUAZHONG UNIV OF SCI & TECH
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