Horizontal axis type wind turbine and method of construction thereof

A method of constructing a tower of a horizontal axis type wind turbine, said tower including a base, a base tower member, a lower tower member, a hinge for hingedly connecting said base tower member and said lower tower member and at least one connecting tower member, comprising the steps of:

• mounting said base tower member on said base;
• connecting said lower tower member with said base tower member through said hinge in a lying position of said lower tower member;
• connecting a first connecting tower member with said lower tower member in a lying position;
• connecting a higher connecting tower member with said first connecting tower member in a lying position;
• connecting a highest connecting tower member with said higher connecting tower member in a lying position;
• and
• swinging said lower tower member around said hinge together with said connecting tower members connected with each other and standing said lower tower member along with said connecting members on said base tower member in a standing position.

A method of lifting and mounting a nacelle of a horizontal axis type wind turbine on the top end of a tower thereof, said nacelle including a tower penetrating hole through which said tower vertically penetrates and is formed by a plurality of nacelle sections divisible around said tower penetrating hole, comprising the steps of:

• connecting a plurality of said nacelle sections and forming said nacelle while said nacelle is penetrated by said tower before lifting;
• lifting said nacelle along said tower with a plurality of tensile members vertically going through the interior of said tower and a plurality of pulleys provided in said tower;
• confirming whether or not said nacelle reaches a specified position of the top end of said tower;
• and
• connecting said nacelle with the top end of said tower.

A horizontal axis type wind turbine, comprising:

• a base;
• a tower mounted on said base;
• a nacelle mounted on said tower and having a penetrating hole being penetrated by said tower so as to enable lifting up said nacelle along said tower;
• a rotor supported by said nacelle;
• and
• a guide mechanism provided in said nacelle for assisting the lifting-up of said nacelle along said tower;
• said guide mechanism including:
• a plurality of arms swingingly connected to said nacelle;
• and
• a guide roller rotatably connected to the tip of each of said arms, being biased on an outer peripheral surface of said tower.

A horizontal axis type wind turbine, comprising:

• a base;
• a tower mounted on said base;
• a nacelle mounted on said tower and having a penetrating hole being penetrated by said tower so as to enable lifting up said nacelle along said tower;
• and
• a rotor supported by said nacelle;
• said nacelle being formed by a plurality of nacelle sections divisible around said penetrating hole, said sections being connected with each other around said tower when mounting said nacelle on said tower.

A horizontal axis type wind turbine, comprising:

• a base;
• a tower mounted on said base;
• a nacelle mounted on said tower and said nacelle having a penetrating hole being penetrated by said tower so as to enable lifting up said nacelle along said tower;
• a rotor rotatably supported by said nacelle;
• and
• a safety device provided in said nacelle for preventing said nacelle from falling down from said tower by hooking said safety device on said tower.