To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is ...To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is not economically viable for most countries. However, oil and fossil fuel prices are known to be highly volatile, and the Paris Agreement calls for a reduction in fossil fuel use. Under these circumstances, heat supplied by nuclear power may abruptly return to favor. To prepare for such a scenario, this study will investigate design considerations for a prototypical modem nuclear power plant, the Korean APR1400 （advanced power reactor 1400） （e.g., Shin Kori Units 3, 4, Shin Hanul 1, 2, Barakah Units 1, 2, 3, 4）. Nuclear cogeneration can impact balance of plant system and component design for the condensate, feedwater, extraction steam, and heater drain systems. The APR1400 turbine cycle will be reviewed for a parametric range of pressures and flow rates of the steam exported for cogeneration to identify major design challenges.展开更多
针对变频器对风电系统的影响,提出一种用于并网型风电机组恒频输出的无级调速系统。该调速装置由可连续调速电动机和差动轮系组成,通过调节电动机的输出转速,电动机调速传动系统可以实现在不同的风速下的恒转速输出,从而实现发电机恒频...针对变频器对风电系统的影响,提出一种用于并网型风电机组恒频输出的无级调速系统。该调速装置由可连续调速电动机和差动轮系组成,通过调节电动机的输出转速,电动机调速传动系统可以实现在不同的风速下的恒转速输出,从而实现发电机恒频输出。建立所设计的电动机调速传动系统SIMULINK模型,并采用美国国家可再生能源实验室开发的FAST(fatigue,aerodynamics,structures and turbulence)软件模拟不同风速下1.5 MW风力发电机的工作情况。通过FAST和SIMULINK仿真试验,在不同风速条件下,验证了设计的电动机调速传动系统。以上研究工作为并网型风电机组的无级调速传动系统设计奠定了一定的理论基础。展开更多
文摘To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is not economically viable for most countries. However, oil and fossil fuel prices are known to be highly volatile, and the Paris Agreement calls for a reduction in fossil fuel use. Under these circumstances, heat supplied by nuclear power may abruptly return to favor. To prepare for such a scenario, this study will investigate design considerations for a prototypical modem nuclear power plant, the Korean APR1400 （advanced power reactor 1400） （e.g., Shin Kori Units 3, 4, Shin Hanul 1, 2, Barakah Units 1, 2, 3, 4）. Nuclear cogeneration can impact balance of plant system and component design for the condensate, feedwater, extraction steam, and heater drain systems. The APR1400 turbine cycle will be reviewed for a parametric range of pressures and flow rates of the steam exported for cogeneration to identify major design challenges.
文摘针对变频器对风电系统的影响,提出一种用于并网型风电机组恒频输出的无级调速系统。该调速装置由可连续调速电动机和差动轮系组成,通过调节电动机的输出转速,电动机调速传动系统可以实现在不同的风速下的恒转速输出,从而实现发电机恒频输出。建立所设计的电动机调速传动系统SIMULINK模型,并采用美国国家可再生能源实验室开发的FAST(fatigue,aerodynamics,structures and turbulence)软件模拟不同风速下1.5 MW风力发电机的工作情况。通过FAST和SIMULINK仿真试验,在不同风速条件下,验证了设计的电动机调速传动系统。以上研究工作为并网型风电机组的无级调速传动系统设计奠定了一定的理论基础。
