Which protection scheme should be applied at a WEP station?

Ideally, the protection scheme applied at the main feeder breaker at a WEP station provides primary protection for the collector feeder and backup protection for the step-up transformer at each WTG location.

What is a protection scheme in a wind electric plant?

Protection schemes within these types of equipment are designed by their manufacturers and are integral to the equipment. Wind Electric Plants are composed of many wind turbine generators (WTGs) which are connected to a collector substation through a collector system.

How can a wind power plant assist the grid during contingencies?

It is important to consider applicable regulatory requirements, such as low-voltage ride through (LVRT), to enable the wind power plant to assist the grid during contingencies. Maintaining adequate power quality is another such consideration.

Do wind turbine generators and static VAR sources need to be protected?

Although the report addresses coordination with wind turbine generator protective devices and static VAR sources, protection of the wind turbine generators and static VAR sources themselves is not included. Large WEPs are becoming more prevalent as generation sources on the power system.

Why does a WTG power control system work?

This occurs when the collector system experiences low voltage, and most probably the collector system is heavily loaded. Hence, the WTG power control system will operate to make the WTG behave like a capacitor to raise the voltage.

What is a wind turbine protection scheme?

The wind turbine protection scheme may include voltage and frequency relaying to protect the generator. For example, some wind turbines may trip for frequencies at or below 95 percent of nominal, or above 103 percent of nominal, with an appropriate time delay.