Load device applied to electric energy quality control device
A power quality and load device technology, which is applied to measuring devices, components of electrical measuring instruments, measuring electrical variables, etc., can solve problems such as low test efficiency, and achieve high reliability, strong anti-interference ability, and high power factor. Effect
Pending Publication Date: 2020-02-28
XJ POWER CO LTD +2
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention provides a load device applied to a power quality control device, which is used to solve the problem of low test efficiency caused by different loads required for different power quality control devices in the prior art
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
[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Examples of loading devices:
[0018] This embodiment provides a load device applied to a power quality control device, the load device is used to connect to a power grid, and the power quality control device can be tested by connecting the load device to the power grid. The load device will be described in detail below.
[0019] The circuit diagram of the load device is shown in figure 1 As shown, it is a load device designed for theoretical research on power quality control devices, device inspection experiments, production debugging and aging. The load device includes two active power filters (APF). The main circuit schematic diagram is as follows figure 2 As shown, the two active power filters are the first active power filter 1#APF a...
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 belongs to the technical field of electric energy treatment, and particularly relates to a load device applied to an electric energy quality treatment device. The device comprises a first active power filter, a second active power filter and an isolation transformer; the direct current sides of the first active power filter and the second active power filter are connected, the alternating current side of the first active power filter is connected with a power grid through the isolation transformer, and the alternating current side of the second active power filter is connected with the power grid. The device also comprises a filter control module which is in control connection with the first active power filter and the second active power filter. The load device can generateactive, reactive, harmonic and unbalanced currents by setting different output currents, so various types of electric energy quality control devices can be tested and debugged only through the load device without various load devices, and the compensation effect of the electric energy quality control devices can be detected.
Description
technical field [0001] The invention belongs to the technical field of power energy management, and in particular relates to a load device applied to a power quality control device. Background technique [0002] The wide application of power electronic equipment in power systems such as factory power supply, residential and urban power supply has resulted in a large increase in various nonlinear, fluctuating and asymmetrical loads, resulting in voltage fluctuations, low power factors, three-phase imbalances and harmonics, etc. Power quality pollution is becoming more and more serious. As the power quality problem gradually attracts people's attention, various power quality control devices are widely used, and the corresponding power quality control devices include reactive power compensation devices, three-phase unbalance compensation devices, harmonic compensation devices, etc. [0003] In order to test these power quality control devices, it is necessary to configure corr...
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 Applications(China)
IPC IPC(8): G01R31/00G01R1/28
CPCG01R1/28G01R31/00
Inventor 李新元马骏曹智慧陈天锦高鹏于浩然程兴邦刘超吕海超申振东窦亚力
Owner XJ POWER CO LTD