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公开(公告)号：EP3919927A1
公开(公告)日：2021-12-08
申请号：EP21158609.4
申请日：2021-02-23
发明人： YANG, Li-Ching , HUANG, Wen-Lung , LI, Sheng-Hua
IPC分类号： G01R31/64
摘要： A detection apparatus for unbalanced DC link capacitor voltage, the DC link provides a DC voltage (V DC ) and includes a plurality of capacitors (C 11 -C 1N ) coupled in series to two ends of the DC link and a plurality of balanced resistors (R B11 -R B1N ) coupled in series to two ends of the DC link and corresponding to the capacitors (C 11 -C 1N ). The detection apparatus includes a plurality of sense resistors (R S1 -R SM ) and a current sensor (A). One end of each sense resistor (R S1 -R SM ) is coupled to a common-connected node of two capacitors (C 11 -C 1N ), and the other end thereof is coupled to a common-connected node of two balanced resistors (R B11 -R B1N ). The current sensor (A) is coupled to one of the sense resistors (R S1 -R SM ) and measures a current value (I S ) of a current flowing through the sense resistor (R S1 -R SM ) coupled to the current sensor (A).
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公开(公告)号：EP4398690A2
公开(公告)日：2024-07-10
申请号：EP23208514.2
申请日：2023-11-08
发明人： LI, Sheng-Hua , LEE, Wei-Chi , YEN, Ming-Chen , LIN, Chun-Han
IPC分类号： H05K7/20
CPC分类号： H05K7/20927 , H05K7/20909 , H05K7/20945
摘要： A heat dissipation is used to dissipate heat for a power module (102A) of an AC-to-DC conversion module (10,10A,10B). The heat dissipation system (14) includes a chiller (162), a heat exchanger (182), a first circulation pipeline (164), a second circulation pipeline (166), a first throttle valve (168), and a control module (5). The chiller (162), the heat exchanger (182), and the first circulation pipeline (164) form a first circulation loop (L1) to circulate a low-temperature coolant (Lc). The second circulation pipeline (166) is disposed on one side of the power module (102A) to form a second circulation loop (L2), and absorbs a heat source generated by the power module (102A) by circulating a high-temperature coolant (Lh). The control module (5) opens the first throttle valve (168) to introduce the low-temperature coolant (Lc) into the second circulation loop (L2) based on a temperature of the high-temperature coolant (Lh) being greater than a temperature threshold so as to control the temperature to be less than or equal to the temperature threshold.
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公开(公告)号：EP4398690A3
公开(公告)日：2024-09-04
申请号：EP23208514.2
申请日：2023-11-08
发明人： LI, Sheng-Hua , LEE, Wei-Chi , YEN, Ming-Chen , LIN, Chun-Han
IPC分类号： H05K7/20
CPC分类号： H05K7/20927 , H05K7/20909 , H05K7/20945 , H05K7/20918
摘要： A heat dissipation is used to dissipate heat for a power module (102A) of an AC-to-DC conversion module (10,10A,10B). The heat dissipation system (14) includes a chiller (162), a heat exchanger (182), a first circulation pipeline (164), a second circulation pipeline (166), a first throttle valve (168), and a control module (5). The chiller (162), the heat exchanger (182), and the first circulation pipeline (164) form a first circulation loop (L1) to circulate a low-temperature coolant (Lc). The second circulation pipeline (166) is disposed on one side of the power module (102A) to form a second circulation loop (L2), and absorbs a heat source generated by the power module (102A) by circulating a high-temperature coolant (Lh). The control module (5) opens the first throttle valve (168) to introduce the low-temperature coolant (Lc) into the second circulation loop (L2) based on a temperature of the high-temperature coolant (Lh) being greater than a temperature threshold so as to control the temperature to be less than or equal to the temperature threshold.
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公开(公告)号：EP4181367A1
公开(公告)日：2023-05-17
申请号：EP22170771.4
申请日：2022-04-29
发明人： CHANG, Che-Wei , Huang, Wen-Lung , LI, Sheng-Hua
摘要： An auxiliary power circuit (14) of a conversion module (1-1 to 1-n) is used to supply power to a control unit (18), and an input end of the conversion module (1-1 to 1-n) includes an even number of energy storage units (122) coupled in series. The auxiliary power circuit (14) includes an even number of primary-side circuits (142) and a secondary-side circuit (144). Each primary-side circuit (142) includes a first switch unit (Q1), a second switch unit (Q2), and a resonance tank (Rt). The first switch unit (Q1) is connected to the second switch unit (Q2) in series, and is correspondingly connected to one of the energy storage units (122) in parallel. The resonance tank (Rt) is connected to the second switch unit (Q2) in parallel. The secondary-side circuit (144) is coupled to the resonance tanks (Rt) of two of the primary-side circuits (142) to acquire power and supply power to the control unit (18).
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5.发明公开Photovoltaic micro inverter with output power boost function 审中-公开澳大利亚国际旅游协会（Photovoltaikmikrowechselrichter mitAusgangsleistungserhöhungsfunktion）
公开(公告)号：EP2854251A1
公开(公告)日：2015-04-01
申请号：EP14151856.3
申请日：2014-01-21
发明人： LI, Sheng-Hua
CPC分类号： H02M7/44 , H02J3/383 , H02J3/385 , H02M1/32 , H02M2001/007 , Y02E10/563 , Y02E10/58
摘要： A method of operating a micro inverter (10, 20) of a solar power system includes following steps: First, an output power value of a solar photovoltaic module (30) is acquired (S10). Afterward, it is to judge whether the micro inverter (10, 20) executes a power boosting mode (S20). If the power boosting mode is executed, a maximum output power of the micro inverter (10, 20) is boosted from a rated output power value (Pmr) to a maximum output power value (Pmm) (S30). Finally, it is to judge whether the output power value of the solar photovoltaic module (30) is greater than the maximum output power value (Pmm) (S40). If YES, the maximum output power value (Pmm) is outputted from the micro inverter (10, 20).
摘要翻译： 一种操作太阳能发电系统的微逆变器（10,20）的方法包括以下步骤：首先，获取太阳能发电模块（30）的输出功率值（S10）。 之后，判断微逆变器（10,20）是否进行升压模式（S20）。 如果执行升压模式，则微逆变器（10,20）的最大输出功率从额定输出功率值（Pmr）升高到最大输出功率值（Pmm）（S30）。 最后，判断太阳能光伏模块（30）的输出功率值是否大于最大输出功率值（Pmm）（S40）。 如果是，则从微逆变器（10,20）输出最大输出功率值（Pmm）。
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公开(公告)号：EP4249926A1
公开(公告)日：2023-09-27
申请号：EP22189354.8
申请日：2022-08-08
发明人： YANG, Li-Ching , HUANG, Wen-Lung , LI, Sheng-Hua
摘要： An insulation resistance detection circuit is coupled to a positive end (V+) and a negative end (V-) of a DC power source (Vdc), and is used to detect a positive insulation resistance (Rx) between the positive end (V+) and a ground point (G) and detect a negative insulation resistance (Ry) between the negative end (V-) and the ground point (G). A detection unit (DET) sets a first estimated resistance and a second estimated resistance, and acquires a first voltage (V1) based on turning on the switch (SW) and acquires a second voltage (V2) based on turning off the switch (SW). The detection unit (DET) calculates a third voltage (V3) and a fourth voltage (V4) according to the first estimated resistance and the second estimated resistance so as to detect the positive insulation resistance (Rx) and the negative insulation resistance (Ry) when the third voltage (V3) is equal to the first voltage (V1) and the fourth voltage (V4) is equal to the second voltage (V2).
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公开(公告)号：EP4135153A1
公开(公告)日：2023-02-15
申请号：EP22175813.9
申请日：2022-05-27
发明人： LI, Sheng-Hua , WANG, Hung-Chang , AI, Tsu-Hua
摘要： A battery cell balance circuit includes an AC/DC converter (300), a plurality of battery cells (Cell 1-Cell m, Cell 1-Cell 6), a plurality of switches (S 1A -S mB , S 1 -S m+1 , RL1-RL6), an isolated DC/DC converter (400), a circuit switch (S C ), and a control unit (500). The AC/DC converter (300) receives an AC power (V AC ). The battery cells (Cell 1-Cell m, Cell 1-Cell 6) are connected in series to form a battery link (L CELL ). Each switch (S 1A -S mB , S 1 -S m+1 , RL1-RL6) is correspondingly connected to one battery cell (Cell 1-Cell m, Cell 1-Cell 6). The isolated DC/DC converter (400) is coupled to the switches (S 1A -S mB , S 1 -S m+1 , RL1-RL6) and coupled to the battery link (L CELL ) in series. The circuit switch (Sc) is coupled between the AC/DC converter (300), the isolated DC/DC converter (400), and the plurality of switches (S 1A -S mB , S 1 -S m+1 , RL1-RL6). The control unit (500) provides a plurality of control signals (SRL1-SRL6, S1c-S7c, S CC ) to correspondingly control the plurality of switches (S 1A -S mB , S 1 -S m+1 , RL1-RL6) and the circuit switch (Sc).
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8.发明公开
公开(公告)号：EP3985849A1
公开(公告)日：2022-04-20
申请号：EP21174703.5
申请日：2021-05-19
发明人： Huang, Wen-Lung , LI, Sheng-Hua
摘要： A power conversion system applied to a solid state transformer includes a DC link (L DC ), a plurality of capacitors (C1, C2), and a plurality of power conversion module assemblies (10). The plurality of capacitors (C1, C2) are coupled in series between a positive bus (P) and a negative bus (N). Each of the power conversion module assemblies (10) has a plurality of DC conversion modules (101, 102, ..., 10n). Input sides of the DC conversion modules (101, 102, ..., 10n) are connected in series to form two input ends (Inl, In2) of the power conversion module assembly (10), and output sides of the DC conversion modules (101, 102, ..., 10n) are connected in parallel to form two output ends (Out1, Out2) of the power conversion module assembly (10). Each of the plurality of power conversion module assemblies (10) is correspondingly connected to each of the plurality of capacitors (C1, C2).
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9.发明公开
公开(公告)号：EP3627678A1
公开(公告)日：2020-03-25
申请号：EP18205052.6
申请日：2018-11-08
发明人： HUANG, Wen-Lung , LI, Sheng-Hua
摘要： A power conversion system with abnormal energy protection includes a plurality of DC input power sources (Vdc1-Vdcn), a plurality of DC power converters (11-1n), two output capacitors (41,42), and a protection circuit (20). An input side of each DC power converter (11-1n) is correspondingly coupled to one of the DC input power sources (Vdc1-Vdcn), and output sides of the DC power converters (11-1n) are coupled in parallel to each other to form a DC output bus (30). Two output capacitors (41,42) are coupled in series between a positive voltage end (Vb+) and a negative voltage end (Vb-) of the DC output bus (30). The protection circuit (20) is coupled between the DC input power sources (Vdc1-Vdcn) and the two output capacitors (41,42). When one of the two output capacitors (41,42) is abnormal, the protection circuit (20) decouples the DC input power sources (Vdc1-Vdcn) from the two output capacitors (41,42) in a shorted-circuit manner.
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