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公开(公告)号：EP3104486A1
公开(公告)日：2016-12-14
申请号：EP15746860.4
申请日：2015-02-05
发明人： WANG, Hai
IPC分类号： H02J3/18
CPC分类号： H02J3/1807 , H01G4/255 , H01G4/258 , Y02E40/30
摘要： Disclosed is a high-voltage AC capacitor for reactive power compensation of 10kV-35kV power grid, and in particular to a high-voltage AC capacitor with a high-voltage switching switch provided therein, as well as a structure for prolonging the service life of a thin film metalized high-voltage capacitor and a control method for prolonging the service life of the thin film metalized high-voltage capacitor. The AC capacitor is formed by multiple intelligent switch capacitor units connected in series, and each capacitor unit is formed by a switch contact (K11-Kn1) and a capacitor (C1-Cn) connected in series. If there are N capacitor units, when each switch contact is disconnected, the endurable voltage of each switch contact, the endurable voltage between the switch contact and a coil and the voltage each capacitor withstands are 1/Nth of the total voltage; when the switch operates, all the contacts operate at the same instant, the switch contacts are prevented from striking sparks or discharging arcs under the protection of the contact protection circuits, and the high-voltage switch is realized through multiple air contact switches connected in series.
摘要翻译： 公开了一种用于10kV-35kV电网的无功补偿的高压交流电容器，特别是提供其中提供高压开关开关的高压交流电容器，以及延长其使用寿命的结构 薄膜金属化高压电容器和用于延长薄膜金属化高压电容器的使用寿命的控制方法。 交流电容器由串联连接的多个智能开关电容器单元形成，每个电容器单元由串联连接的开关触点（K11-Kn1）和电容器（C1-Cn）形成。 如果有N个电容器单元，当每个开关触点断开时，每个开关触点的耐用电压，开关触点和线圈之间的耐久电压以及每个电容器承受的电压是总电压的1/10; 当开关动作时，所有触点都在同一时刻进行工作，开关触点在接触保护电路的保护下不会发生火花或放电电弧，高压开关通过串联连接的多个空气接触开关实现 。
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2.发明公开CONTROL CIRCUIT OF DIODE CONTACT PROTECTION COMBINATION SWITCH AND RELAY CONTROL METHOD 审中-公开STEUERUNGSSCHALTUNG EINES DIODENKONTAKTSCHUTZ-KOMBINATIONSSCHALTERS UND RELISSTEUERUNGSVERFAHREN
公开(公告)号：EP3016124A1
公开(公告)日：2016-05-04
申请号：EP14817223.2
申请日：2014-06-26
发明人： WANG, Hai
IPC分类号： H01H47/02
摘要： A diode contact protection combination switch and a specific implementation method. The combination switch comprises a primary contact protection circuit formed by a primary switch contact of a primary relay, diodes parallel connected at two ends of the primary switch contact, and a contact of a secondary relay. A current capacity of the secondary relay is 1/10 to 1/1000 of a current capacity of a contact of the primary relay. A drive current of the primary relay changes according to a certain rule, so as to shorten travel time of the relay. The implementation method is a control method of shortening travel time of a relay, in which a current flowing through a relay is controlled by a PWM wave output by a single chip microcomputer of a relay control circuit. The diode contact protection combination switch is an on/off switch in the case of current zero crossing, which can easily implement over-current and over-voltage protection and remote manipulation functions. By means of the relay control method, travel time when a relay is closed/opened can be greatly shortened on the premise that the service life of the relay is ensured.
摘要翻译： 二极管接触保护组合开关和具体实现方法。 组合开关包括由主继电器的初级开关触点，并联在主开关触点两端的二极管和次级继电器的触点形成的主触点保护电路。 二次继电器的电流容量是主继电器的接触电流的1/10至1/1000。 主继电器的驱动电流根据规定变化，从而缩短继电器的行进时间。 实现方法是缩短继电器的行进时间的控制方法，其中流过继电器的电流由继电器控制电路的单个微型计算机的PWM波输出控制。 二极管接触保护组合开关是电流过零时的开/关开关，可以轻松实现过电流和过压保护以及远程操作功能。 通过继电器控制方法，可以在确保继电器的使用寿命的前提下大大缩短继电器闭合/打开的行驶时间。
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公开(公告)号：EP3582241A1
公开(公告)日：2019-12-18
申请号：EP18751038.3
申请日：2018-02-02
发明人： WANG, Hai
摘要： The present disclosure provides a high voltage and high current switch with zero-phase waiting and a control method. The switch includes two or more switching units connected in series, each of the switch unit modules includes a main switch circuit, an auxiliary switch circuit, a voltage-equalizing power supply circuit unit, a switch control and communication circuit unit, and a current transformer; and the auxiliary switch circuit and the voltage-equalizing power supply circuit unit are connected in parallel between two ends of the main switch circuit, and the current transformer is connected to the main switch circuit; an output of the current transformer is connected to the voltage-equalizing power supply circuit unit which supplies power to the switch control and communication circuit unit, and the switch control and communication circuit unit is configured to control the closing and opening of a main relay and an auxiliary relay. The switch of the invention uses an air contact switch instead of a high voltage switch that only vacuum switch or SF6 switch can achieve before. Because the contact does not need protection of vacuum or SF6, the cost of production and maintenance of the switch is lower, there is no inrush current during the switching action, no arcing will occur, and the switch will not pollute the power grid.
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公开(公告)号：EP2960912A1
公开(公告)日：2015-12-30
申请号：EP14753712.0
申请日：2014-02-21
发明人： WANG, Hai
摘要： The present invention relates to an intelligent switch capacitor, which comprises a shell. The shell is provided with a capacitor core internally. A temperature sensor is arranged on the capacitor core. A top end of the capacitor core is connected to an intelligent switch wiring board. The intelligent switch wiring board is connected to a single chip computer, a capacity-switch, a temperature measurement module, a current measurement module and a current harmonic component measurement module, wherein the capacitor switch is connected to the capacitor core in an inner triangle way. Beneficial effects of the present invention are: 1. A switch and a power capacitor are integrated into a whole, which can implement quick capacity-switching and cutting of the switch; 2. The capacitor has an electronic thermal protection function; 3. Possibilities of capacitor damages and power grid accidents caused by resonance of a PFC capacitor in a power grid system are eliminated completely; 4. A power capacitor loss is reduced.
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