Energy converter for outputting electrical energy
A transducer and output voltage technology, applied in the direction of output power conversion device, power management, converter type, etc., can solve the problem of increasing the cost of battery 110
Active Publication Date: 2013-04-17
ROBERT BOSCH GMBH +1
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- Description
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- Application Information
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Problems solved by technology
The protective relays 118 , 119 and the load protective relay 120 significantly increase the costs of the accumulator 110 because of the high demands placed on its reliability and on the current conducted by it
Method used
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Embodiment Construction
[0033] image 3 A first exemplary embodiment of a coupling unit 30 for use in a transducer according to the invention is shown. The coupling unit 30 has two inputs 31 and 32 and an output 33 and is designed to connect one of the inputs 31 or 32 to the output 33 and to decouple the other input.
[0034] Figure 4 A possible circuit-technical realization of a first embodiment of the coupling unit 30 is shown, in which first and second switches 35 and 36 are provided. Each of the switches 35 , 36 is connected between one of the input terminals 31 or 32 and the output terminal 33 . This embodiment has the advantage that the two inputs 31 , 32 can also be decoupled from the output 33 , so that the output 33 has a high impedance, which can be useful, for example, in the case of repairs or maintenance. Furthermore, the switches 35 , 36 can be realized simply as semiconductor switches, such as MOSFETs (Metal Oxide Semiconductor Field Effect Transistors) or IGBTs (Insulated Gate Bip...
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An energy converter for outputting electrical energy is introduced. The energy converter has at least one first converter cell module (70-1, 70-2) and at least one second converter cell module (80-1, 80-2), which each comprise at least one converter cell (11) and one coupling unit (30, 50). The at least one converter cell (11) is connected between a first input (31, 51) and a second input (32, 52) of the coupling unit (30, 50). The coupling unit (30, 50) is designed to connect the at least one converter cell (11) between a first terminal (41, 61) of the converter cell module (70-1, 70-2; 80-1, 80-2) and a second terminal (42, 62) of the converter cell module (70-1, 70-2; 80-1, 80-2) in response to a first control signal, and to connect the first terminal (41, 61) to the second terminal (42, 62) in response to a second control signal. According to the invention, the at least one converter cell (11) of the at least one first converter cell module (70-1, 70-2) is connected in a first polarity between the first input (31, 51) and the second input (32, 52) of the coupling unit (30, 50) of the at least one first converter cell module (70-1, 70-2), and the at least one converter cell (11) of the at least one second converter cell module (80-1, 80-2) is connected in a second polarity, which is opposite the first polarity, between the first input (31, 51) and the second input (32, 52) of the coupling unit (30, 50) of the at least one second converter cell module (80-1, 80-2). The invention also relates to a method for supplying an electrical drive system.
Description
technical field [0001] The invention relates to a transducer for outputting electrical energy and a method for supplying an electric drive system. Background technique [0002] In the future, more battery systems will be applied, both in static applications and in vehicles such as hybrid and electric vehicles. In order to be able to meet the required voltage and power requirements for the respective application, a relatively high number of battery cells is connected in series. Since the current provided by such a battery has to flow through all battery cells, and a battery cell can only conduct a limited current, the battery cells are usually additionally connected in parallel in order to increase the maximum current. This can be achieved by arranging further cell packs within the battery cell housing or by connecting the battery cells externally. [0003] exist figure 1 shows a schematic circuit diagram of a typical electric drive system, which is used, for example, in e...
Claims
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IPC IPC(8): H02M7/537
CPCB60L15/007B60L2210/42H02M7/483H02M7/537H02P27/14B60L50/51Y02T10/64Y02T10/72Y02T10/70
Inventor S·巴茨曼H·芬克
Owner ROBERT BOSCH GMBH