摘要
文章根据发电机组进相试验中限制因素情况,分析燃煤发电机组深度调峰时进相限制因素,通过一起深度调峰下机组进相试验验证限制因素情况,并根据限制因素情况,提出提升深度调峰下机组进相能力的措施。指出深度调峰机组进相时主要限制因素为厂用电压,其次为机端电压、静稳极限,抬高电网电压或切换厂用电至启备变可有效提升深度调峰机组进相能力。通过深度调峰进相试验得出:电网电压一致的情况下,机组进相能力跟有功呈线性关系,有功降低,进相能力增强,为深度调峰机组进相运行提供理论和实证依据。
In this paper,the leading phase limiting factors of coal-fired units in the deep peak-regulation in accordance with the limiting factors in the leading phase test of the generating unit.The measures on improving the leading phase capacity of the unit at deep peak regulation are proposed though the limiting factors of the leading phase limiting factors of the unit and in accordance with the limiting factors.It is pointed out that the main limiting factors at the deep peak regulating unit is mainly the auxiliary power voltage,then stator voltage and static stability limit,and elevation of grid voltage or switching auxiliary power plant to start transformer can effectively enhance the leading phase capacity in the deep peakregulation.It is concluded through the leading phase test of the deep peak regulation that under identical grid voltage,the leading phase capacity of the unit shows linear relationship with active power.The lower the active power is,the higher the leading capacity is,which provides theoretical and true base for the leading phase operation of the deep peak regulation.
引文
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