A Generator Intelligent Electric Quantity Transmitting Device
A smart electrical and generator technology, applied in measuring devices, measuring electrical variables, measuring electricity, etc., can solve problems such as poor anti-interference ability, affecting the stability of the power system, and the response time of measurement accuracy needs to be further improved.
Active Publication Date: 2021-09-10
XIAN UNIV OF TECH
View PDF17 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional analog transmitter has the disadvantages of long response time and poor anti-interference ability, and the traditional transmitter cannot provide transient information, which seriously affects the stability of the power system
At present, there are digital frequency transmitters that measure frequency alone and digital power transmitters that measure power on the market. Most of these transmitters have single functions, low integration, and most of them have no host computer data recording and analysis functions, and frequency transmission The power transmitter is easily affected by harmonics, and its measurement accuracy (greater than 0.005Hz) and response time need to be further improved; since the power transmitter does not have a separate frequency measurement unit, after the output frequency of the generator fluctuates, the voltage sampling frequency cannot follow the power generation in time. The output frequency of the machine changes, resulting in large deviations in power measurement
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0020] Such as Figure 1-3 As shown, an intelligent electrical quantity transmission device for a generator is composed of an input signal conditioning module, a signal acquisition and processing module (CPU), a generator electrical parameter input and output module, a human-computer interaction module and a dual power supply module;
[0021] The input signal conditioning module includes a frequency signal conditioning circuit and a power signal conditioning circuit; the frequency signal conditioning circuit is composed of a filter circuit, a zero-crossing comparison circuit, and an optocoupler isolation circuit; the power signal conditioning circuit combines the generator two The three-phase current and voltage signals output by the secondary side are converted int...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an intelligent electric quantity transmission device for a generator, which is composed of an input signal conditioning module, a signal acquisition and processing module, a generator electric parameter input and output module, a human-computer interaction module and a dual power supply module. Based on the ARM high-performance 32-bit processor platform, the device can quickly and accurately measure the output frequency, active power, voltage, current and other electrical parameters of the generator, and transmit the measured electrical parameters into 4-20mA current signals. For generator power automatic adjustment AGC system and DCS system to realize automatic stable adjustment. The invention applies the measured frequency to voltage signal sampling to ensure accurate measurement and transmission of power and other electrical parameters when the output frequency of the generator fluctuates greatly. The invention improves the adjustment accuracy and stability of the electrical parameters of the power system, and integrates and intelligentizes the electrical quantity transmission of the generating set, and has positive effects on ensuring the economical and stable operation of the thermal power generating set.
Description
technical field [0001] An intelligent electrical quantity transmission device for a generator. The invention relates to the technical field of electrical quantity measurement for a generator, in particular to an intelligent electrical quantity transmission device for a generator. Background technique [0002] Electric parameters such as frequency and power are important operating parameters of power systems and electrical equipment. Their accurate measurement is the basis for the operation, monitoring, control and relay protection of power systems and electrical equipment, as well as the basis for stable operation control and regulation of power systems. In terms of frequency adjustment, at present, many thermal power units often have insufficient frequency modulation amplitude and hysteresis in the actual response of primary frequency modulation, resulting in large deviations in actual speed feedback and long delay times. At the same time, frequency signals often deviate due...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 焦尚彬张洪嘉张青
Owner XIAN UNIV OF TECH