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معمای نیروگاه شماره 36 - برنامه ریزی Black starting
برنامه ریزی Black starting در سیستم های قدرت تجدید ساختار چیست؟
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نویسنده : محسن - از: ایران
 
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ساعت: 17:12 - تاریخ: 18 آبان 1393
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Emergency and
Backup Power Sources:
Preparing for
Blackouts and Brownouts
by
Michael F. Hordeski

POWER RESTORATION
Restoring power to a massive area requires utilities to balance electricity coming from the restarted plants with load demands. An imbalance can trigger more blackouts. Supplementary power sources called black starters are used to re-engage the generators and get auxiliary systems on-line. Once the generators are up, they could flood the grid with too much power and shut it down again if there are not enough substations on-line to draw power.
At the substations, operators must control the power distribution and gradually send more power to areas that need it. As new power plants are connected to the grid, those that are already up and running must drop back their output to stabilize the system.
Essential facilities and services are the first to get their power back.
These include hospitals, police and fire departments, water and sewage- treatment plants. As areas are brought up, they are connected with other nearby regions. This merging can cause destabilizing fluctuations for a while.
By 10 p.m. on the day of the blackout, 50% of affected areas in New
England had their power restored. By 5 a.m. the next day, 50% of Canadian areas were back online. New York was fully restored by 10:30 p.m.
 
نویسنده : حمید - از: فیروزآباد فارس
 
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