Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Excitation control device, excitation control method, and synchronous rotating equipment using them

A technology of synchronous rotation and excitation control, which is applied in the model/simulation of control purposes, controlling generators and control systems through magnetic field changes, and can solve problems such as difficult to manufacture factories and implement load tests.

Active Publication Date: 2017-10-17
TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to this limitation, in reality, it is difficult to carry out actual load tests in manufacturing plants in many cases.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Excitation control device, excitation control method, and synchronous rotating equipment using them
  • Excitation control device, excitation control method, and synchronous rotating equipment using them
  • Excitation control device, excitation control method, and synchronous rotating equipment using them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] figure 1 It is a block diagram showing the structure of the synchronous rotating machine of Embodiment 1. The synchronous rotating machine 500 has a rotating machine main body 450 and an excitation control device 400 . The details of the structure of the synchronous rotating device 500 will be described later.

[0032] figure 2 It is a schematic quarter partial transverse cross-sectional view of the rotary device main body of the synchronous rotary device according to the first embodiment. image 3 It is a connection diagram of the field winding of the synchronous rotating machine of Embodiment 1. Figure 4 It is a wiring diagram of the armature winding of the synchronous rotating machine of Embodiment 1.

[0033] Such as figure 2 As shown, the reluctance type multi-phase synchronous rotating equipment (hereinafter simply referred to as "rotating equipment main body") 450 of this embodiment is, for example, a three-phase synchronous generator. The rotor 10 and t...

Embodiment approach 2

[0121] Figure 10 It is a block diagram showing the structure of the synchronous rotating machine of Embodiment 2.

[0122] This embodiment is a modification of the first embodiment. The main control variable in Embodiment 1 is generator voltage, but the main control variable in Embodiment 2 is power factor. Therefore, the excitation control device 400 of this embodiment includes the power factor detection unit 223 . In addition, the field control device 400 includes a power factor control computing unit 222 instead of the voltage control computing unit 122 .

[0123] The target operating condition input unit 110 outputs the required power factor value to the first subtraction unit 221 . The first subtraction unit 221 subtracts the generator power factor value fed back from the power factor detection unit 223 from the required power factor value from the target operating condition input unit 110 to output a power factor deviation.

[0124] The power factor control calculat...

Embodiment approach 3

[0130] Figure 11 It is a block diagram showing the structure of the synchronous rotating machine of Embodiment 3.

[0131] This embodiment is a modification of the first embodiment. The synchronous rotating machine 500 in this embodiment is a synchronous motor.

[0132] In the case of a synchronous motor, the target operating condition is, for example, torque. The main control quantity is also torque.

[0133] In this embodiment, the excitation control device 400 has an output detection unit 324 for detecting the output of the synchronous rotating machine 500, a rotation speed detection unit 325 for detecting the rotation speed, a torque calculation unit 323 for calculating torque from the output and the rotation speed, and a torque control calculation unit. 322.

[0134] In addition, since it is the synchronous rotating machine 500, the rotation speed basically corresponds to the rotation speed of the power supply frequency, and the rotation speed detection unit 325 does...

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

No PUM Login to View More

Abstract

The excitation control device (400) of the synchronous rotating equipment (500) includes: a target operating condition input unit (110); a first subtraction unit (121) that subtracts a final control variable feedback value from the input final control variable demand value; The deviation is received as an input, and the final control variable control calculation unit (122) that outputs the field current correction request value; the previous calculation unit (130) that outputs the previous request value of the field current based on the operating condition request value; the field current An addition unit (141) for adding the correction request value to the previous request value of the field current; a second subtraction unit (142) for subtracting the field current value from the field current set value; and a field current for adjusting the field current based on the deviation Adjustment device (143). The prior calculation unit (130) has: a dependence characteristic data storage unit (132) storing the dependence characteristic estimated based on the no-load test result; A circuit calculation unit (133) that previously requires a value.

Description

technical field [0001] The present invention relates to an excitation control device for synchronous rotating equipment, an excitation control method, and synchronous rotating equipment using them. Background technique [0002] In general, in order to perform an actual load test on a large-capacity rotating electric machine, a relatively large-scale load test device represented by a power supply device, a load device, and the like is required. [0003] Due to such restrictions, in reality, it is often difficult to implement actual load tests at manufacturing plants. In such a case, if the actual load test is to be carried out, the test is carried out in the environment of the actual equipment after installation in a field facility using a rotating electrical machine. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2011-172369 Contents of the invention [0007] The technical problem to be solved by the in...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02P27/06G01R31/24H02P25/08H02P29/00H02P29/40
CPCG01R31/343H02P6/34H02P23/14H02P2103/20H02P25/08H02P9/305H02K3/18H02K15/02H02P9/26H02P6/24
Inventor 津田敏宏川村光弘深见正岛和男
Owner TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com