风电机组刹车制动逻辑改造电路及其应用  

Logic Transformation Circuit for Braking of Wind Turbine Unit and its Application

作　　者：熊国专 刘水德 张皓晨 胡鹏 冯江哲 XIONG Guozhuan;LIU Shuide;ZHANG Haochen;HU Peng;FENG Jiangzhe(CHN Energy Longyuan(Beijing)Wind Power Engineering Technology Co.,Ltd.,Beijing 100034;Gansu Longyuan New Energy Co.,Ltd.,Lanzhou,Gansu 730050)

机构地区：[1]国家能源集团龙源(北京)新能源工程技术有限公司,北京100034 [2]国家能源集团甘肃龙源新能源有限公司,甘肃兰州730050

出　　处：《能源科技》2024年第5期54-57,共4页Energy Science and Technology

基　　金：龙源电力科技项目“基于国产IGBT的标准化风电变流器功率组件研究与应用”。

摘　　要：针对部分品牌在役机组过速运行时,紧急停机情况下高速轴刹车合闸抱死且空气制动失效后机组无法可靠停机的安全隐患,提出了一种刹车制动逻辑改造电路。在高速轴刹车制动回路并联过速检测电路中,检测到机组过速时高速轴刹车处于松闸状态,随后在偏航刹车卡钳制动回路和偏航动作回路分别并联超速检测电路,当检测到机组超速时,偏航卡钳处于松闸状态,机组自动进入侧风偏航制动状态。该刹车制动逻辑改造电路考虑到了高速轴刹车不合理投入和空气制动能力不足的缺陷,对原有的制动逻辑电路进行了改造优化。现场验证表明,改造后的制动电路对机组的安全、可靠停机起到了重要的保护作用。A braking logic transformation circuit is proposed to address the safety hazards of some brands of in-service units being unable to reliably shut down in the event of emergency shutdown,where the highspeed shaft brake is locked and the air brake fails.Firstly,a parallel overspeed detection circuit is connected to the high-speed shaft braking circuit.When the unit is detected to be over speed,the high-speed shaft brake is in a released state.Subsequently,the overspeed detection circuit is connected in parallel in the yaw brake caliper braking circuit and yaw action circuit.When the unit overspeed is detected,the yaw caliper is in a released state,and the unit automatically enters a crosswind yaw braking state.The brake logic modification circuit takes into account the shortcomings of unreasonable high-speed axle braking and insufficient air braking capacity,and optimizes the original brake logic circuit.On-site verification shows that the modified braking circuit plays an important protective role in the safe and reliable shutdown of the unit.

关 键 词：过速 偏航 刹车制动 空气制动 

分 类 号：TM614[电气工程—电力系统及自动化]