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公开(公告)号：US5621300A
公开(公告)日：1997-04-15
申请号：US429227
申请日：1995-04-25
CPC分类号： H02J7/35 , Y02E10/566 , Y10S320/10 , Y10S320/11
摘要： In a charging control method and apparatus which can improve the operating efficiency of a power generation system and prolong the service life of an accumulation unit, a short-circuit switch is closed, and a current generated in a solar cell is charged in the accumulation unit in a charging state. With this charging, the terminal voltage of the accumulation unit rises. This voltage is detected by a detection unit and is loaded into a control unit. When the detected voltage rises to a predetermined voltage, the short-circuit switch is closed by a short-circuit control signal. The output current from the solar cell is then discharged to the ground, and charging is stopped. In this state, the control unit determines the connected state of a load from an output signal from the detection unit. When the closed state of the short-circuit switch is determined from an output signal from a detection unit, the control unit switches the short-circuit switch to an open state even if the voltage of the accumulation unit has not reached a charging start voltage. With this switching operation, discharging of an output current from the solar cell to the ground is stopped, and the output current from the solar cell is output to the accumulation unit and the load.
摘要翻译： 在能够提高发电系统的运行效率并延长蓄电单元的使用寿命的充电控制方法和装置中，短路开关闭合，并且将太阳能电池中产生的电流充电到蓄电单元 处于充电状态。 通过该充电，蓄电单元的端子电压上升。 该电压由检测单元检测并被加载到控制单元中。 当检测到的电压上升到预定电压时，短路开关由短路控制信号闭合。 然后将来自太阳能电池的输出电流排出到地面，并停止充电。 在这种状态下，控制单元根据来自检测单元的输出信号确定负载的连接状态。 当从检测单元的输出信号确定短路开关的闭合状态时，即使蓄电单元的电压尚未达到充电开始电压，控制单元将短路开关切换到打开状态。 通过该切换动作，停止从太阳能电池向地面的输出电流的放电，将来自太阳能电池的输出电流输出到蓄电单元和负载。
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2.发明授权Charge/discharge control method, charge/discharge controller, and power generation system with charge/discharge controller 失效充放电控制方式，充放电控制器，带充放电控制器的发电系统
公开(公告)号：US5751133A
公开(公告)日：1998-05-12
申请号：US622584
申请日：1996-03-26
CPC分类号： H01M10/465 , H02J7/35 , Y02E10/566
摘要： In a charge/discharge control system for a charging the output of a storage battery from a solar cell, the output voltage of the storage battery connected to a node between the solar cell output and a load is detected. If the detected voltage is less than a first setting value, discharge from the storage battery to the load is inhibited. The discharge inhibition is released in response to a discharge inhibition release command after the storage battery voltage increases to a second setting value.
摘要翻译： 在用于对来自太阳能电池的蓄电池的输出进行充电的充放电控制系统中，检测连接到太阳能电池输出和负载之间的节点的蓄电池的输出电压。 如果检测到的电压小于第一设定值，则禁止从蓄电池向负载的放电。 在蓄电池电压升高到第二设定值之后，响应于放电抑制释放命令释放放电抑制。
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3.发明授权公开(公告)号：US06590793B1
公开(公告)日：2003-07-08
申请号：US08914227
申请日：1997-08-19
IPC分类号： H02M324
摘要： An electric power conversion unit 2 for driving a pump 3 run by electric power generated by a solar panel 1, a storage battery 5 connected to the solar panel 1 via the switch 6, and a controller 7 for controlling the electric power conversion unit 2 and the switch 6 are provided. The controller 7 closes the switch 6 during any period when the amount of insolation is large and performs the maximum power point tracking control of the solar panel 1, and otherwise, controls the electric power conversion unit 2 to drive at one of plural fixed frequencies in dependence upon an output voltage from the solar panel 1 by closing the switch 6. Accordingly, it is possible to utilize output from an unstable electric power supply efficiently, such as a solar cell, thereby providing a reliable electric motor driving apparatus having a simple configuration and a control method therefor.
摘要翻译： 用于驱动由太阳能电池板1产生的电力运行的泵3的电力转换单元2，经由开关6连接到太阳能电池板1的蓄电池5以及用于控制电力转换单元2的控制器7以及 提供开关6。 在日照量大的任何期间，控制器7关闭开关6，进行太阳能电池板1的最大功率点跟踪控制，否则，控制电力转换单元2以多个固定频率 通过关闭开关6来依赖于太阳能电池板1的输出电压。因此，可以有效地利用诸如太阳能电池的不稳定电源的输出，从而提供具有简单配置的可靠的电动机驱动装置 及其控制方法。
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公开(公告)号：US6050779A
公开(公告)日：2000-04-18
申请号：US833992
申请日：1997-04-09
CPC分类号： F04B17/006
摘要： A conveying system comprising a pump whose power source is an unstable electric power supply, such as a solar cell; a first supply pipe for conveying liquid from an intake to the pump; a second supply pipe for conveying the liquid from the pump to a discharge opening; a liquid storage tank provided at a position which is below the discharge opening and above the pump; a third supply pipe branching from the second supply pipe, for conveying the liquid to the liquid storage tank; a fourth supply pipe connected between the liquid storage tank and the first supply pipe; a first valve, provided between the branching point of the first and fourth supply pipes and the intake, for opening and closing the first supply pipe; a second valve, provided between the branching point of the second and third supply pipes and the discharge opening, for opening and closing the second supply pipe; a third valve for opening and closing the third supply pipe; and a fourth valve for opening and closing the fourth supply pipe. The conveying system is capable of conveying liquid, fine powder, and so on, at high efficiency with a single pump even when available electric power supplied from the unstable electric power supply is low by performing open/close control of the second and fourth valves.
摘要翻译： 一种输送系统，包括其电源是诸如太阳能电池的不稳定电源的泵; 用于将液体从入口输送到泵的第一供应管; 用于将液体从泵输送到排出口的第二供给管; 液体储存罐，设置在排出口下方并位于泵上方的位置; 从所述第二供给管分支的用于将液体输送到所述液体储存罐的第三供给管; 连接在液体储存罐和第一供给管之间的第四供给管; 第一阀，设置在第一和第四供给管的分支点与进气口之间，用于打开和关闭第一供应管; 第二阀，设置在第二和第三供给管的分支点与排出口之间，用于打开和关闭第二供应管; 用于打开和关闭第三供应管的第三阀; 以及用于打开和关闭第四供应管的第四阀。 即使通过对第二阀和第四阀的打开/关闭控制，由不稳定电源供给的可用电力较低，输送系统能够以单个泵高效地输送液体，细粉等。
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5.发明授权Power control method and apparatus for battery power supply and battery power supply system 失效电池电源和电池供电系统的电源控制方法和装置
公开(公告)号：US5838148A
公开(公告)日：1998-11-17
申请号：US703800
申请日：1996-08-28
CPC分类号： H02J7/35 , Y10S323/906
摘要： Power supplied from a battery power supply to a load through a power conversion unit is maximized with a relatively simple arrangement and a small processing load. In addition, an output command value for controlling the power conversion unit is detected, a set voltage for which the output command value is maximized is calculated with reference to a past or present set voltage, as needed, and set as the next set voltage such that the maximum output is supplied to the load without any erroneous operation in the case of variation in solar radiation. In this case, a plurality of voltages are sequentially set for a relatively short period. Output command values for the respective set voltages are fetched while setting the same voltage at the start and end of the operation. A variation in output command value caused by the fetching difference for the same set voltage is detected. The output command value for calculating the next set voltage is corrected in accordance with this variation.
摘要翻译： 通过相对简单的布置和小的处理负载，通过电力转换单元从电池电源供应到负载的电力被最大化。 此外，检测用于控制功率转换单元的输出指令值，根据需要根据过去或当前的设定电压来计算输出指令值最大化的设定电压，并将其设定为下一设定电压 在太阳辐射变化的情况下，最大输出被提供给负载而没有任何错误的操作。 在这种情况下，多个电压被依次设定为相当短的时间。 在操作开始和结束时设置相同的电压，取出各个设定电压的输出指令值。 检测由相同设定电压的取样差引起的输出指令值的变化。 根据该变化来校正用于计算下一设定电压的输出命令值。
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公开(公告)号：US07126053B2
公开(公告)日：2006-10-24
申请号：US10463790
申请日：2003-06-18
CPC分类号： H01L31/0687 , Y02E10/544 , Y10S136/291 , Y10S136/293
摘要： In a power generation system of this invention, the outputs from power generation layers electrically connected in series are input to corresponding power conversion devices, and boosted outputs are connected in parallel and fed to a load. Alternatively, the output from one of power generation layers electrically connected in series is input to a first power conversion device, and the serial output and the boosted output from the first power conversion device are connected in parallel, input to a second power conversion device, boosted, and fed to the load. Since the two power generation layers can be individually output-controlled, each power generation layer can be optimized basically without considering current balance. Since the optical spectrum utilization efficiency increases, the power generation efficiency increases. In addition, since the power can be fed not to separate loads but to one load, the convenience largely increases.
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7.发明授权Control apparatus of inverter and power generation system using such control apparatus 失效使用这种控制装置的逆变器和发电系统的控制装置
公开(公告)号：US6031736A
公开(公告)日：2000-02-29
申请号：US685934
申请日：1996-07-22
CPC分类号： H02M7/53873 , Y02E10/56 , Y10S323/906
摘要： To provide a cheap inverter which uses a single digital microprocessor and can execute a current control and a maximum power control without changing a design of a hardware even for any switching device or solar cell, there is provided a control apparatus of an inverter for converting a DC electric power into an AC electric power by using a switching device, wherein the control apparatus is constructed by an inversion discrimination circuit for receiving an output current or an output voltage and a reference signal and for discriminating whether a switching state of the switching device should be inverted or not and a gate pulse signal forming unit for changing the switching state of the switching device in response to an inversion request signal which is outputted from the inversion discrimination circuit. The gate pulse signal forming unit has a CPU for forming a gate pulse signal by an interrupting process by using the inversion request signal as an interruption control signal.
摘要翻译： 为了提供使用单个数字微处理器的便宜的逆变器，并且即使对于任何开关装置或太阳能电池，也可以执行电流控制和最大功率控制而不改变硬件的设计，提供了一种用于将 通过使用开关装置进行交流电力的直流电力，其中所述控制装置由用于接收输出电流或输出电压和参考信号的反转判别电路构成，并且用于鉴别所述开关装置的开关状态是否应当 门控脉冲信号形成单元，用于响应于从反转判别电路输出的反转请求信号来改变开关器件的开关状态。 门脉冲信号形成单元具有通过使用反转请求信号作为中断控制信号通过中断处理形成门脉冲信号的CPU。
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公开(公告)号：US5986354A
公开(公告)日：1999-11-16
申请号：US637213
申请日：1996-04-24
CPC分类号： H02J7/35 , H02J7/345 , Y02E10/566 , Y10S323/906 , Y10T307/505 , Y10T307/615
摘要： In order to prevent a device serving as a load from being destroyed or causing an operation error while assuring an optimum operation voltage of a solar cell, and to stably, efficiently obtain power, a DC source system, in which a solar cell (1) and a DC source (3) are connected to an output terminal connected to a load (2) in parallel with each other, includes a first switch (5) arranged between the load (2) and the solar cell (1), a second switch 7 arranged between the load (2) and the DC source, and a capacitor (6) arranged between the load and the first switch in parallel with the solar cell.
摘要翻译： 为了防止作为负载的装置在确保太阳能电池的最佳工作电压的同时被破坏或引起操作错误，并且为了稳定地有效地获得电力，可以使用太阳能电池（1）的DC源系统， 和DC源（3）连接到彼此并联连接到负载（2）的输出端子，包括布置在负载（2）和太阳能电池（1）之间的第一开关（5），第二开关 布置在负载（2）和DC源之间的开关7以及与太阳能电池并联布置在负载和第一开关之间的电容器（6）。
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公开(公告)号：US5892354A
公开(公告)日：1999-04-06
申请号：US717330
申请日：1996-09-20
CPC分类号： G05F1/67 , Y02E10/58 , Y10S323/906
摘要： A voltage control apparatus which is robust against disturbances such as variations in solar radiation amount around a solar cell, and has quick response, has a voltage detection unit (4) for detecting the voltage value of a battery power supply (1), a power conversion unit (2) for performing predetermined conversion of electric power supplied from the battery power supply, and supplying the converted electric power to a load or a commercial AC system (3), an output setting unit (5) for setting the output value of the power conversion unit on the basis of the voltage detection value, and a control unit (6) for controlling the power conversion unit on the basis of the output setting value. The output setting unit is constituted by a target voltage setting unit (51) for setting the target voltage value of the battery power supply, and an output calculation unit (52) for calculating the output setting value on the basis of the deviation between the voltage detection value and the target voltage value.
摘要翻译： 一种对太阳能电池周围的太阳辐射量的变化等抗扰性强的电压控制装置，具有快速响应的电压控制装置，具有检测电池电源（1）的电压值的电压检测单元（4） 转换单元（2），用于执行从电池电源供应的电力的预定转换，并将转换的电力提供给负载或商用AC系统（3）;输出设定单元（5），用于将输出值 基于电压检测值的功率转换单元，以及用于基于输出设定值控制功率转换单元的控制单元（6）。 输出设定单元由用于设定电池电源的目标电压值的目标电压设定单元（51）和输出计算单元（52）构成，该输出计算单元基于电压 检测值和目标电压值。
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公开(公告)号：US5869956A
公开(公告)日：1999-02-09
申请号：US922550
申请日：1997-09-03
摘要： In order to extract maximum power from a solar cell, maximum power point tracking (MPPT) control is performed under ordinary circumstances. If the output current of the solar cell becomes too small, the operating point of the solar cell is caused to fluctuate over a range wider than that of MPPT control at a period longer than that of MPPT control and the output voltage and current of the solar cell is sampled. In a case where it is indicated by power values obtained from the sample voltage values and current values that a plurality of maximal points of power value exist, a voltage value corresponding to a power value indicative of the largest value is set as the operating point of the solar cell.
摘要翻译： 为了从太阳能电池提取最大功率，在一般情况下执行最大功率点跟踪（MPPT）控制。 如果太阳能电池的输出电流变得太小，则太阳能电池的工作点在比MPPT控制的时间长的范围内比MPPT控制的工作点波动，并且太阳能电池的输出电压和电流 对单元进行采样。 在由从采样电压值和电流值获得的功率值表示存在多个功率值的最大值的情况下，将表示最大值的功率值对应的电压值设定为 太阳能电池。
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