>>>>>型號:KUC755AE106 勵磁控制系統(tǒng) 進行調(diào)理和控制
【功能描述】
一、定義及作用
勵磁控制系統(tǒng)是發(fā)電過程中不可或缺的重要環(huán)節(jié)之一，主要用于對發(fā)電機產(chǎn)生的電能進行調(diào)理和控制。該系統(tǒng)主要包括勵磁功率單元和勵磁調(diào)節(jié)器兩個部分，發(fā)揮著確保發(fā)電機穩(wěn)定工作、提高振蕩、降低過調(diào)整的作用。
二、組件組成
勵磁功率單元提供直流電流至發(fā)電機，以實現(xiàn)對勵磁電流的控制；而勵磁調(diào)節(jié)器則根據(jù)輸入?yún)?shù)和預(yù)設(shè)規(guī)則來調(diào)控勵磁功率單元的輸出。整體而言，勵磁系統(tǒng)成為了由勵磁調(diào)節(jié)器、勵磁功率單元和發(fā)電機所構(gòu)成的閉環(huán)控制系統(tǒng)，能夠在保證發(fā)電機高效工作的同時，提高系統(tǒng)穩(wěn)定性和可靠性。
三、原理說明
1. KUC755AE106測量比較模塊。此單元吸收發(fā)電機電壓信息，然后將其轉(zhuǎn)換為直流信號，再依據(jù)預(yù)設(shè)直流參考電壓進行比較計算，輸出相應(yīng)的電壓偏差信號；為了使并列運行的機組能公平公正地分擔無功功率，我們還需要加入穩(wěn)壓調(diào)節(jié)單元。
2. KUC755AE106綜合放大模塊。這個提升環(huán)節(jié)主要負責將基礎(chǔ)參數(shù)測量輸出、反饋制約以及輔助限制生成等多元直流信號進行整合放大，最終推送給比例積分環(huán)節(jié)。該環(huán)節(jié)可以依據(jù)預(yù)設(shè)的調(diào)節(jié)規(guī)律進行加工處理后輸出。適應(yīng)器環(huán)節(jié)用于放大信號電壓，最終轉(zhuǎn)化為移相控制信號電壓以精確調(diào)節(jié)勵磁電壓。
四、結(jié)論
總之，勵磁控制系統(tǒng)對于電力生產(chǎn)具有極為關(guān)鍵的意義。通過理解系統(tǒng)功能、結(jié)構(gòu)組成及其運作原理，我們可以在此基礎(chǔ)上制定更為科學有效的運行策略，從而確保發(fā)電機組的高效穩(wěn)定運行。
>>>>>型號:KUC755AE106 勵磁控制系統(tǒng) 進行調(diào)理和控制
【英文介紹】
Abstract: This article mainly discusses the main points of excitation system design and control technology analysis of synchronous generator. The excitation system is very important for the stable and reliable operation of the generator, and also has a positive significance for improving the technical and economic benefits of the power system. In this paper, the excitation control system of 0.5MW European standard small permanent magnet synchronous generator (KUC755AE105) will be discussed in detail.
Key words: synchronous generator; Excitation system; Control technology; Design essentials
Introduction: Excitation system plays a very critical role in the steady state or transient state of synchronous generator, which directly determines the performance characteristics of the generator. An excellent excitation system can not only ensure the quality of the power supply, but also promote the safety and stability of the unit, which ultimately leads to the improvement of the technical and economic benefits of the entire power system. However, if the importance of the excitation control system is ignored in the power system stability calculation, the results can not reach the expected results.
Text: Before the synchronous generator is connected to the grid, its voltage needs to be maintained at a preset value, which means that the excitation regulation system under no-load conditions needs to maintain smooth operation. Once connected to the grid, the unit will operate in parallel with other generators in the power system. At this time, the excitation adjustment system must have the ability to have a positive impact on the stable operation of the power system. Specifically, control accuracy and dynamic performance are common requirements in daily operation.
In addition, the power system design specification also has corresponding provisions for excitation control systems, including stability indicators (such as amplitude margin m≥30db and phase margin y≥50℃), dynamic indicators (overkill Mp≤ 15%-30% and adjustment time tp≤10s) and steady state error e(oo)<1%-2% and other objectives. Based on this, we need to analyze and design the excitation control system from the three dimensions of stability, dynamics and steady-state.
The basic structure of the excitation control system is usually composed of two basic components, namely the excitation power module and the excitation regulator. Among them, the excitation power module is mainly responsible for applying direct current excitation to the synchronous generator rotor, and the excitation regulator realizes the output adjustment by accurately controlling the excitation power module according to the predetermined regulation principle. The whole system is a closed-loop control system which includes excitation regulator, excitation power module and generator set.
Conclusion: In summary, this paper focuses on the design of synchronous generator excitation system and the analysis of control technology. Learn about Binzhou can Operation and maintenance company ZYS450-H and ZYS800-H permanent magnetic synchronous motor is1250-22-10 ild011-4619is1250-35-4820 synchronous motor forth 350,000 kW generator is450-6220 synchronous motor used in power generation industry The output and environmental conditions of the is450-7629 synchronous motor help us to improve the design of the generator, increase its operating efficiency and reduce energy consumption.
>>>>>型號:KUC755AE106 勵磁控制系統(tǒng) 進行調(diào)理和控制
