By the simulation it has been indicated that the nec + pid excitation control theory does not only keep the stability of generator in the transient process but also improves the precision of voltage regulation 仿真結(jié)果表明:與傳統(tǒng)的勵磁控制相比, “ nec + pid ”勵磁控制方法不僅能夠提高發(fā)電機(jī)在暫態(tài)情況下的系統(tǒng)穩(wěn)定性,而且具有較高的電壓控制精度。
In this paper , after entirely introduction of the development of generator excitation control theory and compare of all kinds of excitation control method , the nolinear excitation control theory with using the differential coefficient geometry theory is presented and its shortage of lack of precision of voltage regulation is indicated . combining traditional pid excitation control theory , the nolinear excitation control theory is improved effectively and the nec + pid excitation control method is offered 論文詳細(xì)地介紹了各種發(fā)電機(jī)勵磁控制方式,在比較分析了各種勵磁控制方式特點之后,給出了運用微分幾何理論實現(xiàn)發(fā)電機(jī)非線性勵磁控制的方法,同時指出現(xiàn)有非線性勵磁控制方式對電壓控制精度不高的問題,結(jié)合傳統(tǒng)pid控制對非線性勵磁控制方式進(jìn)行了有效的改進(jìn),提出了“ nec + pid ”相結(jié)合新的勵磁控制方法。