Electric vehicle control device
A technology for electric vehicle control and electric motors, applied in control devices, electric vehicles, electrical devices, etc., can solve the problems of large-scale devices, increased costs, and increased number of control devices
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no. 1 approach
[0027] A first embodiment of the present invention will be described with reference to the drawings.
[0028] figure 1 It is a circuit configuration diagram showing the first embodiment of the electric vehicle control device according to the present invention. figure 2 is an equivalent circuit diagram of the semiconductor element device package according to the first embodiment. image 3 It is a graph of voltage output and temperature rise of the semiconductor element device package according to the first embodiment. Figure 4 It is an external view of the first embodiment.
[0029] (Structure of 4-in-1 inverter unit)
[0030] The circuit configuration of the electric vehicle control device according to this embodiment is as follows: figure 1 As shown, a first four-in-one (4in1) inverter unit 1 is included. The DC input side circuit of the first four-in-one inverter unit 1 includes a power collector 4, a high-speed circuit breaker 5, a short-circuit contactor 6 for cha...
no. 2 approach
[0056] A second embodiment of the present invention will be described with reference to the drawings.
[0057] Figure 5 It is a circuit configuration diagram of the second embodiment. against Figure 1~4 The same structural elements are assigned the same reference numerals, and description thereof will be omitted.
[0058] (constitute)
[0059] The circuit configuration of the electric vehicle control device of this embodiment and figure 1 Compared with the circuit configuration of the first embodiment, the difference is that the VVVF inverters 21a to 21d constituting the four-in-one inverter unit are connected in different ways, and furthermore, the DC side of each inverter 21 is connected in parallel. There is a DC voltage sensor 32 and an inverter filter capacitor 13 . These points are explained below.
[0060] The second 4-in-1 inverter unit 30 includes VVVF inverters 21a-21d. VVVF inverter 21a and VVVF inverter 21b connected in series constitute inverter series c...
no. 3 approach
[0070] A third embodiment of the present invention will be described with reference to the drawings.
[0071] Figure 6 It is a circuit configuration diagram of the third embodiment. against Figure 1~4 The same structural elements are assigned the same reference numerals, and description thereof will be omitted.
[0072] (constitute)
[0073] The circuit configuration of the electric vehicle control device of this embodiment and figure 1 Compared with the circuit configuration of the first embodiment, the difference is that the connection method of the VVVF inverters 21a to 21d constituting the four-in-one inverter unit is different, and furthermore, DC voltage sensors for the inverters 21a to 21d are added. 40 and filter capacitor 41. These points are described below.
[0074] exist Figure 6 Among them, the third four-in-one inverter unit 42 includes VVVF inverters 21a-21d. VVVF inverter 21a and VVVF inverter 21b connected in parallel constitute inverter parallel cir...
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