>>>>>型號:KUC755AE105 同步發(fā)電機(jī)的勵磁系統(tǒng)

【功能描述】

摘要：本篇文章主要探討同步發(fā)電機(jī)的勵磁系統(tǒng)設(shè)計(jì)要點(diǎn)以及控制技術(shù)分析。勵磁系統(tǒng)對于發(fā)電機(jī)的穩(wěn)定和可靠運(yùn)轉(zhuǎn)至關(guān)重要，同時(shí)也對提升電力系統(tǒng)的技術(shù)經(jīng)濟(jì)效益具有積極意義。本文將針對0.5MW歐洲標(biāo)準(zhǔn)小型永磁同步發(fā)電機(jī)（KUC755AE105）的勵磁控制系統(tǒng)進(jìn)行詳細(xì)論述。

關(guān)鍵詞：同步發(fā)電機(jī)；勵磁系統(tǒng)；控制技術(shù)；設(shè)計(jì)要點(diǎn)

引言：勵磁系統(tǒng)在同步發(fā)電機(jī)的穩(wěn)態(tài)或暫態(tài)狀態(tài)下均發(fā)揮著極為關(guān)鍵的角色，它直接決定著發(fā)電機(jī)的性能特點(diǎn)。一個(gè)卓越的勵磁系統(tǒng)不僅能夠確保電源的品質(zhì)，還可推動機(jī)組安全性以及穩(wěn)定性的提升，從而最終帶動整個(gè)電力系統(tǒng)技術(shù)經(jīng)濟(jì)效益的增進(jìn)。然而，若在電力系統(tǒng)穩(wěn)定運(yùn)算時(shí)忽視了勵磁調(diào)節(jié)系統(tǒng)的重要性，所得出的結(jié)果往往無法達(dá)到預(yù)期效果。

正文：同步發(fā)電機(jī)在接入電網(wǎng)前，需求其電壓能維持在預(yù)設(shè)數(shù)值上，這亦即意味著空載情況下的勵磁調(diào)節(jié)系統(tǒng)需保持平穩(wěn)運(yùn)行。而一旦并網(wǎng)后，該機(jī)組便會與電力系統(tǒng)中的其他發(fā)電機(jī)并聯(lián)運(yùn)營。此時(shí)，勵磁調(diào)整系統(tǒng)需具備對電力系統(tǒng)穩(wěn)定運(yùn)作產(chǎn)生正面影響的能力。具體來說，控制精度和動態(tài)性能是日常運(yùn)行中所常見的指標(biāo)要求。

此外，電力系統(tǒng)設(shè)計(jì)規(guī)范對于勵磁控制系統(tǒng)亦有相應(yīng)規(guī)定，包括穩(wěn)定指標(biāo)（如幅度裕量m≥30db和相位裕度y≥50℃）、動態(tài)指標(biāo)（超調(diào)量Mp≤15%~30%和調(diào)節(jié)時(shí)間tp≤10s）以及穩(wěn)態(tài)誤差e(oo)<1%-2%等各項(xiàng)目標(biāo)?；诖耍覀冃枰獜姆€(wěn)定性、動態(tài)性以及穩(wěn)態(tài)性三個(gè)維度全面分析并設(shè)計(jì)勵磁控制系統(tǒng)。

勵磁調(diào)控系統(tǒng)的基本結(jié)構(gòu)通常由兩個(gè)基本組件構(gòu)成，分別是勵磁功率模塊和勵磁調(diào)節(jié)器。其中，勵磁功率模塊主要負(fù)責(zé)為同步發(fā)電機(jī)轉(zhuǎn)子施加直流電激勵，而勵磁調(diào)節(jié)器則按照預(yù)定的調(diào)節(jié)原則，通過精準(zhǔn)控制勵磁功率模塊來實(shí)現(xiàn)輸出調(diào)節(jié)。整套系統(tǒng)實(shí)質(zhì)上是一個(gè)包含勵磁調(diào)節(jié)器、勵磁功率模塊及發(fā)電機(jī)組在內(nèi)的閉環(huán)控制系統(tǒng)。

結(jié)論：綜上所述，本文重點(diǎn)討論了同步發(fā)電機(jī)勵磁系統(tǒng)的設(shè)計(jì)要點(diǎn)以及控制技術(shù)分析。了解濱州可運(yùn)維公司佳暉電字ZYS450-H及ZYS800-H永磁同步電動機(jī)is1250-22-10 ild011-4619is1250-35-4820同步電機(jī)forth 35萬千瓦發(fā)電機(jī)is450-6220同步電機(jī)用于發(fā)電行業(yè) is450-7629同步電機(jī) 的輸出和環(huán)境條件，有助于我們改進(jìn)發(fā)電機(jī)的設(shè)計(jì)，提高其運(yùn)行效率，降低能源損耗。

 >>>>>型號:KUC755AE105 同步發(fā)電機(jī)的勵磁系統(tǒng)

【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:KUC755AE105 同步發(fā)電機(jī)的勵磁系統(tǒng)