-
1.发明申请Electronic Controller Matching Engine Power To Alternator Power And Maintaining Engine Frequency For A Free-Piston Stirling Engine Driving A Linear Alternator 有权电子控制器匹配发动机功率发电机功率和维持发动机频率为自由活塞斯特林发动机驱动线性发电机公开(公告)号：US20080309095A1
公开(公告)日：2008-12-18
申请号：US12194588
申请日：2008-08-20
IPC分类号： H02P9/04
CPC分类号： F02M35/112 , F02D29/06 , F02G1/0435 , F02G1/045 , F02G2280/10 , H02P9/04 , H02P25/032
摘要： A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously derived from other sensed and computed parameters and used in a negative feedback control loop of the control system to control engine piston stroke in order to maintain the power produced by the engine equal to the power transferred from the engine to the alternator. Vinternal is the sum of the voltage induced on the alternator winding and the voltage across the equivalent circuit lumped resistance of the alternator winding.A switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current. A negative feedback, Vinternal control loop has a feedback circuit including a piston position or velocity sensor connected to a computing circuit that the current sensor is also connected to. The computing circuit computes a signal representing Vinternal for use as the feedback signal of the Vinternal control loop. The output of the Vinternal control loop is connected as the command input to the current feedback control loop.
摘要翻译： 一种用于包括在发电源的控制系统中的反馈控制方法和电路，其包括驱动线性交流发电机的自由活塞斯特林发动机。 变量Vinternal的瞬时值从其他感测和计算参数连续得到，并用于控制系统的负反馈控制回路，以控制发动机活塞行程，以保持发动机产生的功率等于传递的功率 从发动机到交流发电机。 Vinternal是交流发电机绕组感应的电压和交流发电机绕组的等效电路集总电阻之间的总和。 开关模式整流器将交流发电机绕组连接到储能电容器或电池。 负反馈，交流发电机电流控制回路具有连接到开关模式整流器的脉宽调制器的输出，并具有包括用于感测瞬时交流发电机电流的电流传感器的反馈电路。 负反馈，Vinternal控制回路具有反馈电路，其包括连接到电流传感器也连接到计算电路的活塞位置或速度传感器。 计算电路计算代表Vinternal的信号，用作Vinternal控制回路的反馈信号。 Vinternal控制回路的输出作为命令输入连接到当前反馈控制回路。
-
公开(公告)号：US07266947B2
公开(公告)日：2007-09-11
申请号：US10825024
申请日：2004-04-15
IPC分类号： F25B9/00
CPC分类号： F04B49/12 , F25B9/14 , F25B2309/001 , F25B2309/1428
摘要： A cryocooler having two operating modes so that its operating range is broadened, its gas bearing system is maintained in an operable state and it can utilize piston stroke modulation for energy efficiency. A piston stroke modulator modulates the piston stroke when the commanded piston stroke exceeds the minimum stroke and maintains the minimum stroke when the commanded stroke is less than the minimum stroke. A heater applies heater power to the thermal load when the commanded piston stroke is less than the minimum piston stroke. A closed loop feedback control system is used which has two branches of its dynamic leg. One branch controls the modulation of the cryocooler and the second, parallel branch controls the modulation of the heater.
摘要翻译： 具有两个操作模式以使其工作范围变宽的低温冷却器，其气体轴承系统保持在可操作状态，并且可以利用活塞行程调节来实现能量效率。 当指令的活塞冲程超过最小行程时，活塞行程调节器调节活塞行程，并且当指令行程小于最小行程时保持最小行程。 当指令的活塞冲程小于最小活塞行程时，加热器将加热器电力施加到热负荷。 使用闭环反馈控制系统，其具有其动态支路的两个分支。 一个分支控制低温冷却器的调制，第二个并联分支控制加热器的调制。
-
3.发明授权Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator 有权电子控制器将发动机功率与交流发电机功率匹配，并维持用于驱动线性交流发电机的自由活塞斯特林发动机的发动机频率公开(公告)号：US07453241B2
公开(公告)日：2008-11-18
申请号：US11605601
申请日：2006-11-29
IPC分类号： H20P11/00
CPC分类号： F02M35/112 , F02D29/06 , F02G1/0435 , F02G1/045 , F02G2280/10 , H02P9/04 , H02P25/032
摘要： A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously derived from other sensed and computed parameters and used in a negative feedback control loop of the control system to control engine piston stroke in order to maintain the power produced by the engine equal to the power transferred from the engine to the alternator. Vinternal is the sum of the voltage induced on the alternator winding and the voltage across the equivalent circuit lumped resistance of the alternator winding and a switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current. A negative feedback, Vinternal control loop has a feedback circuit including a piston position or velocity sensor connected to a computing circuit that the current sensor is also connected to. The computing circuit computes a signal representing Vinternal for use as the feedback signal of the Vinternal control loop. The output of the Vinternal control loop is connected as the command input to the current feedback control loop.
摘要翻译： 一种用于包括在发电源的控制系统中的反馈控制方法和电路，其包括驱动线性交流发电机的自由活塞斯特林发动机。 变量的瞬时值V <内部从其他感测和计算的参数连续导出，并用于控制系统的负反馈控制回路以控制发动机活塞冲程，以便保持产生的功率 发动机等于从发动机传递到交流发电机的功率。 V SUB内部是交流发电机绕组感应的电压和交流发电机绕组的等效电路集总电阻之间的电压之和，开关模式整流器将交流发电机绕组连接到储能电容器或电池。 负反馈，交流发电机电流控制回路具有连接到开关模式整流器的脉宽调制器的输出，并具有包括用于感测瞬时交流发电机电流的电流传感器的反馈电路。 负反馈的V＆lt;内部控制回路具有反馈电路，其包括连接到电流传感器也连接到计算电路的活塞位置或速度传感器。 计算电路计算一个表示V IN内部的信号，以用作V 控制环路的反馈信号。 作为当前反馈控制回路的命令输入端，连接了V＆lt;内部＆lt; / SUB＆gt;控制回路的输出。
-
4.发明申请Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator 有权电子控制器将发动机功率与交流发电机功率匹配，并维持用于驱动线性交流发电机的自由活塞斯特林发动机的发动机频率公开(公告)号：US20080122408A1
公开(公告)日：2008-05-29
申请号：US11605601
申请日：2006-11-29
CPC分类号： F02M35/112 , F02D29/06 , F02G1/0435 , F02G1/045 , F02G2280/10 , H02P9/04 , H02P25/032
摘要： A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously derived from other sensed and computed parameters and used in a negative feedback control loop of the control system to control engine piston stroke in order to maintain the power produced by the engine equal to the power transferred from the engine to the alternator. Vinternal is the sum of the voltage induced on the alternator winding and the voltage across the equivalent circuit lumped resistance of the alternator winding.A switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current. A negative feedback, Vinternal control loop has a feedback circuit including a piston position or velocity sensor connected to a computing circuit that the current sensor is also connected to. The computing circuit computes a signal representing Vinternal for use as the feedback signal of the Vinternal control loop. The output of the Vinternal control loop is connected as the command input to the current feedback control loop.
摘要翻译： 一种用于包括在发电源的控制系统中的反馈控制方法和电路，其包括驱动线性交流发电机的自由活塞斯特林发动机。 变量的瞬时值V <内部从其他感测和计算的参数连续导出，并用于控制系统的负反馈控制回路以控制发动机活塞冲程，以便保持产生的功率 发动机等于从发动机传递到交流发电机的功率。 内部是交流发电机绕组感应的电压与交流发电机绕组等效电路集总电阻之间的和。 开关模式整流器将交流发电机绕组连接到储能电容器或电池。 负反馈，交流发电机电流控制回路具有连接到开关模式整流器的脉宽调制器的输出，并具有包括用于感测瞬时交流发电机电流的电流传感器的反馈电路。 负反馈的V＆lt;内部控制回路具有反馈电路，其包括连接到电流传感器也连接到计算电路的活塞位置或速度传感器。 计算电路计算一个表示V IN内部的信号，以用作V 控制环路的反馈信号。 作为当前反馈控制回路的命令输入端，连接了V＆lt;内部＆lt; / SUB＆gt;控制回路的输出。
-
5.发明授权Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator 有权电子控制器将发动机功率与交流发电机功率匹配，并维持用于驱动线性交流发电机的自由活塞斯特林发动机的发动机频率公开(公告)号：US07633173B2
公开(公告)日：2009-12-15
申请号：US12194588
申请日：2008-08-20
IPC分类号： F02D9/04
CPC分类号： F02M35/112 , F02D29/06 , F02G1/0435 , F02G1/045 , F02G2280/10 , H02P9/04 , H02P25/032
摘要： A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously derived from other sensed and computed parameters and used in a negative feedback control loop of the control system to control engine piston stroke in order to maintain the power produced by the engine equal to the power transferred from the engine to the alternator. Vinternal is the sum of the voltage induced on the alternator winding and the voltage across the equivalent circuit lumped resistance of the alternator winding.A switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current. A negative feedback, Vinternal control loop has a feedback circuit including a piston position or velocity sensor connected to a computing circuit that the current sensor is also connected to. The computing circuit computes a signal representing Vinternal for use as the feedback signal of the Vinternal control loop. The output of the Vinternal control loop is connected as the command input to the current feedback control loop.
摘要翻译： 一种用于包括在发电源的控制系统中的反馈控制方法和电路，其包括驱动线性交流发电机的自由活塞斯特林发动机。 变量Vinternal的瞬时值从其他感测和计算参数连续得到，并用于控制系统的负反馈控制回路，以控制发动机活塞行程，以保持发动机产生的功率等于传递的功率 从发动机到交流发电机。 Vinternal是交流发电机绕组感应的电压和交流发电机绕组的等效电路集总电阻之间的总和。 开关模式整流器将交流发电机绕组连接到储能电容器或电池。 负反馈，交流发电机电流控制回路具有连接到开关模式整流器的脉宽调制器的输出，并具有包括用于感测瞬时交流发电机电流的电流传感器的反馈电路。 负反馈，Vinternal控制回路具有反馈电路，其包括连接到电流传感器也连接到计算电路的活塞位置或速度传感器。 计算电路计算代表Vinternal的信号，用作Vinternal控制回路的反馈信号。 Vinternal控制回路的输出作为命令输入连接到当前反馈控制回路。
-
6.发明授权Control system and method for preventing destructive collisions in free piston machines 有权用于防止自由活塞机械中的破坏性碰撞的控制系统和方法公开(公告)号：US06536326B2
公开(公告)日：2003-03-25
申请号：US09883003
申请日：2001-06-15
IPC分类号： F15B1316
CPC分类号： F02B71/00 , F02G2275/20 , F25B2309/001
摘要： In a free piston machine, initial collisions of the piston with structures at the end of the cylinder are detected and generate a change in the magnitude of a perturbation signal, which is applied to the summing junction of a closed loop feedback control system controlling a piston force. The change is applied in a direction to reduce piston amplitude. In embodiments in which maximization of piston amplitude is desirable, the magnitude of the perturbation signal is also varied in the opposite direction in the absence of collisions to increase piston amplitude of oscillation so that operation then hunts between initial nondestructive collisions and a non-colliding maximum amplitude of piston oscillation.
摘要翻译： 在自由活塞机中，检测到活塞与气缸末端的结构的初始碰撞，并产生扰动信号的大小的变化，扰动信号被施加到控制活塞的闭环反馈控制系统的求和点 力。 该变化应用于减小活塞振幅的方向。 在需要活塞幅度最大化的实施例中，扰动信号的大小也在不存在碰撞的情况下在相反方向上变化，以增加活塞的振荡幅度，从而使操作在初始非破坏性碰撞之间和非碰撞最大值 活塞振动幅度。
-
公开(公告)号：US06199381B1
公开(公告)日：2001-03-13
申请号：US09389191
申请日：1999-09-02
IPC分类号： F01B2910
CPC分类号： H02K35/02 , F02B63/041 , F02B71/04 , F25B2309/001 , H02K7/1884 , H02K33/16
摘要： In a free piston machine, a coil is mounted to its housing and magnetically linked to a permanent magnet or electromagnet on its piston member to form a linear motor. The coil and magnet are either added to embody the invention or are part of an AC linear alternator or AC linear motor which are a part of the free piston machine. A source of DC electrical current and a switch for connecting the DC source to the coil supply DC current to the coil when the switch is closed so that the coil and magnet temporarily operate as a DC linear motor until the piston is adequately centered for start-up without collision. The DC source voltage is temporarily applied to the coil to move the piston away from an end wall of the cylinder. This is accomplished by applying the DC current to the coil for a predetermined time interval, or by sensing when the piston has reached an adequately centered position.
摘要翻译： 在自由活塞机器中，线圈被安装到其壳体上并与其活塞构件上的永磁体或电磁体磁连接以形成线性电动机。 线圈和磁体被添加以体现本发明，或者是作为自由活塞机的一部分的AC线性交流发电机或AC线性电动机的一部分。 直流电流源和用于将直流电源连接到线圈的开关在开关闭合时向线圈提供直流电流，使得线圈和磁体暂时作为直流线性电动器工作，直到活塞被充分居中为起动 - 没有碰撞。 直流电源电压暂时施加到线圈上，以使活塞远离气缸的端壁。 这是通过将直流电流施加到线圈预定的时间间隔来实现的，或者通过感测何时活塞达到适当的中心位置来实现。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.015 秒)
