TW563286B - Power generating system - Google Patents

Abstract

A power generating system 1 is provided with a power generator 2 for generating DC power, and a converter circuit 3 for converting DC power into AC power, in which the power generator 2 has a plurality of power generating modules 21 to 28 each comprising plural power generating units 30. A plurality of the first switch means S11 to 17 for connecting/separating the positive electrodes 62 of plural power generating modules 21 to 28 with/from a positive bus 6 are disposed. A plurality of the second switch means S11 to 17 for connecting/separating the positive electrodes 62 of plural power generating modules 21 to 28 with/from the negative electrodes 60 of the power generating modules 21 to 27 contiguous to one side are disposed. A plurality of the third switch means S1 to 7 for connecting/separating the negative electrodes 60 of plural power generating modules 21 to 27 with/from a negative bus 7 are disposed such that DC output voltage can be increased/decreased stepwise by changing the switch means S1 to S7, S11 to 17.

Description

563286

_The present invention relates to a power generation system that generates AC power from DC power generated by a solar cell or a fuel cell via a converter circuit. It has a switching mechanism that switches the voltage of DC power in the > Lou Zhang phase. feature. f _Jinggeleg Recently, although the production cost of solar cells for solar power generation systems has gradually been reduced in most homes, solar power generation systems are becoming more and more popular, but most solar power generation systems are for homes and are connected to commercial single-phase AC systems. System interlocking system. The solar cell of a domestic solar power generation system is a battery with an output of kW, which is connected in series and in parallel to a number of power generation modules. The aforementioned system interlocking type solar power generation system must convert DC power to AC power suitable for a single-phase AC system through a converter circuit. The well-known solar power generation system shown in FIG. 19 is a general system interlocking system that controls a converter circuit by a PWM (pulse width modulation) method, which is provided with a plurality of solar cells connected in parallel to a plurality of power generation modules. 〇〇, converter circuit 1 〇1 and switching control converter circuit 1 〇1 control device 1 〇2. The control device 102 has a voltage detection for detecting the reference voltage of the AC system as 103, an amplifier 104 for amplifying the detection voltage, a triangular wave generator 105, a PWM control section 106, and the like. As shown in FIG. 19, the PWM control section 1 〇 β controls the converter circuit based on the reference voltage-based sine wave 1 07 and the carrier wave 1 〇 8 generated by the triangular wave generator 105. The switching element generates a rectangular wave-shaped AC voltage 109 as shown in FIG. 20, and smoothes the rectangular wave-shaped AC voltage 10 by a filter circuit, thereby transforming it into a sinusoidal wave-shaped AC voltage.

563286, description of the invention (2) The power is output to the AC system. "In the technology of controlling the converter circuit by the above PWM method, because the output of the solar cell is intermittently converted into AC power, there is a problem that only the output of the solar cell is utilized to about 90%. And because the converter circuit occurs First, the switching frequency of the components, the high-order spectrum and wave components related to the impedance of the parent flow system, it is necessary to set a filter device to absorb this high-harmonic component, remove the device, etc., and with the large voltage There is also a problem that the loss of power devices such as switching elements of the converter circuit becomes large. On the one hand, there is also a proposal to switch out the sun of the output of a plurality of solar cells by switching The number of batteries is divided into a solar power generation system with a battery switching method that switches the output voltage in most stages. As shown in Figure 21, in this power generation system, for example, it is set to generate 10v, 20V, 40V, 80v DC power ^ 4: And too, the battery 110, by only turning on the switch Si in the switches Si, S2, s3, and S4, outputs a DC power of 1 ον, and switches the turned on switches by an appropriate combination, stepwise increasing by 10V units Reduce the voltage of the DC power, 22: 30ν '.. 140ν, 150ν. The DC power is converted into the AC power shown in Figure 22 (A) and (B) by the converter circuit ⑴ and output to the AC system. : Car: In the power generation system shown in Figure 19 above, the solar power generation system of this battery switching method improves the occurrence of sub-harmonics and electromagnetic faults. However, the utilization of the output of the four solar cells has only experienced the short-term peak voltage. In the meantime, due to the problem of a significant decrease in the utilization ratio of solar cells to solar cells in most of the periods. ^ Recently, the development of fuel cell-based power generation systems has also been developed, and it is inferred that

563286 V. Description of the invention (3) In the near future, it will gradually become practical for domestic power generation systems. A plurality of storage batteries ′ are stored in the state of the m f layer, and the plurality of batteries ˜η W are connected in series to output DC power. Because each battery generates about 0.6 phase I, free DC power, so we are connecting this power generation system to a household unit: the DC power generated by the power generation system is supplied to the AC system. J = It must be the same as that of the aforementioned solar power generation system. Problem. The electric power generation system is equipped with a power generation device that generates DC power and a converter that generates DC power and converts it into AC power. The aforementioned power generation device is a multiple power generation module, which has a plurality of power units or power generation units. Equipped with: ί :: ί: = circuit; the positive and negative buses on the input side can connect and separate the multiple power generation department B's positive buses. The first switch is equipped with multiple positive poles: each positive terminal of the module and its adjacent side. Each of the negative poles of the power generating module j, and the negative bus is connected and separated. The plurality of third switching devices, the f-th gates, the second switching devices, and the first switching devices are all turned on, and all the second switching devices are turned off. ☆ The power generation modules are connected in parallel to the positive and negative buses, and the output voltage becomes the minimum voltage Vmin. In the state of connecting multiple groups, in the state of connecting multiple groups of power generating modules by connecting a plurality of second switching devices in series, they are connected in parallel to the positive and negative busbars: 1: The third switch is installed in two, and the DC output power plant It is ν: ιη ^ = = hair: number of modules ^ 111111 power generation modules connected in series on the right page 6 C \ 2D-C0DE \ 91-06 \ 91106710.ptd 563286 5. Description of the invention (4) The number is 4 The DC output voltage is ^ π and the output voltage is 0. The output voltage can be effectively used. By switching only the output of the i, 2nd, and 3rd H, the output current is the same as the current output. What. $ There will be a phased switching of the utilization of the power module. Θ 置 ’can sufficiently increase power generation, because even if a number of first! The second, the second, the voltage change when the switching device is switched is also the switching of the device, it is more difficult to send the current in the current circuit of the device: Noise; High = Knowledge: ... ^ Small is used for ... The capacity can simplify the structure of the circuit. The switching frequency of the installation of complex magic wave transformers is less than that of p-type converters, and the frequency of switching is less. It is applicable to small switching elements in a plurality of J off; cattle, cut; US off the device, switching losses are also reduced. Le 1 brother 2 brother 3 opened due to the reduction of the output voltage of the power generation module when the power generation module is a solar cell power generation module day, morning, dusk The connection mode of the first, second, and third switching devices of the female switch adjusts the voltage of the direct current power output from # 电? 旻 number, so there is no need to set up a system that has high usability and freedom. In addition, since a plurality of first, second, and third switching devices can be switched to have a staged ancient pressure, the output current is reduced in stages, and the output is reduced in stages .: The output current is the stage Increased characteristics, so can be controlled at the maximum = round power generation device The above are the effects of the power generation system of the present invention. ^ Acting here, preferably, the following various configurations are also used.

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Page 7 563286 V. Description of the invention (5) U) A plurality of first, second, and third switches are respectively provided by semi-conductors =, and a plurality of magic, second, and second switches are controlled by * switching. The device and P switch the control of the output voltage of the aforementioned power generation device step by step: installed-(b) Differentiate the aforementioned multiple power generation modules for the multiple distribution control and J control, and connect each of the second switching devices in series to each = digital power generation module In the state, the positive and negative buses of the i and 3 f are used. The switching device is connected in parallel to (c) the aforementioned converter circuit is provided with a plurality of semiconductor switching elements, and 70 of these half V-body switches are controlled by the aforementioned control device. (d) Setting a voltage detection device for detecting the voltage of the AC power system receiving the aforementioned power generation system ^ common power, the aforementioned control vibration device is based on the h of the voltage detection device, said 'Control 1st', 2nd, 3rd switching elements, and the above described changes A plurality of semiconductor switching elements of a current transformer circuit. (0) A matrix of plural power generating units of the aforementioned power generating module arranged in a plurality of columns and rows is connected in parallel and in series. (G) Each of the aforementioned power generating units is constituted by a solar cell formed into a junction shape on a granular semiconductor. (H) ^ Otherwise, the power generation device is composed of a fuel cell in which a plurality of storage batteries are stacked, and each of the aforementioned power generation units is composed of the foregoing storage batteries. BEST MODES OF THE INVENTION The best mode for implementing the power generation system of the present invention will be described below. As shown in FIG. 7, the power generation system 1 has a power generation device 2 that generates DC power, and converts the DC power generated by the power generation device 2 into AC power.

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The inverter circuit 3 for outputting power to the single-phase AC system, the switching mechanism Sm for switching the voltage of the DC power of the power generation device 2 in a plurality of stages f, the switching mechanism Sm for controlling the switching mechanisms Sm and the inverter circuit 3 Controls 4, 4 'of 51 to 54 and the voltage of the single-phase AC system and the voltage input to the control device 4 are measured and measured. For the convenience of explanation, the power generation device 2 of this embodiment is arranged in a row in the power generation direction, and eight power generation modules 21 to 28 are arranged in a row, and each power generation module 2 is arranged in a matrix of two rows and five columns. , 10 power generating units 30 connected in parallel and in series. Each of the power generating units 30 is composed of, for example, any one of three kinds of granular solar cells 30a to 30C shown in Figs. 2 to 4, which can receive sunlight and generate a direct current of, for example, 0.5 to 0.6V. The solar cell 30A in FIG. 2 is made of n-type silicon spherical semiconductor 31, P-type diffusion layer 32, ρη junction 33, silicon oxide, edge film 34, and spacer-shaped semiconductor having a diameter of 15 to 3.0 mm (mm). The center of 31 is composed of a positive electrode 35 and a negative electrode. In addition, such a solar cell 3OA is described in the applicant's case No. W098 / 1 5983. The solar cell 3β in FIG. 3 is the same as the center of the small P-type silicon spherical semiconductor 37, the n-type diffusion layer 38, the rhenium junction 39, the emulsified stone insulation film 40, and the spherical semiconductor 37 facing each other. The positive electrode 41 should be composed of, etc., in order to easily distinguish the positive electrode 41 from the negative electrode 42. In the formation of the battery 3 0C, the diameter is about I 5 ~ 3 〇㈣ 程 / 二: = shown in the solar power ^ s ,, Umm privacy P Type silicon cylindrical semiconductor 43, n-type expansion layer 44, pn junction 45, p + diffusion layer 46, film 47, positive electrode 48 and negative electrode 设 provided at both ends, etc. 30A ~ 30C are just examples.

563286 V. Description of the invention (7) As far as the power generation module is concerned, it can be applied to various modules (such as a panel-shaped solar cell or a collection of small panel-shaped solar cells with a function of generating DC power of about 5 to 10 volts). Panelized solar cells, fuel cells, etc.). In addition, as for the power generation unit 30, various power generation units or power generation units or power generation function units (for example, a panel-shaped solar cell or a plurality of small panel-shaped solar cells can be applied for panelization, for example, generating low-voltage DC power. (Including 1 or more power generation units or power generation function units, 1 or more storage batteries for fuel cells, or 1 or more dry cells or batteries). / The converter circuit 3 is, for example, bridge-connected 4 n-channel type GBT-made switching elements 51 to 54. The return diodes 55 to 58 are also connected to each of the switching elements 51 to 5 ^. The four switching elements 51 to 54 are controlled by a control signal from the control device 4. The switching elements 51, 54 and the switching elements 53, 52 are grouped together and configured to conduct alternating conduction 'to output AC power to a single-phase AC system. Next, the switching element described above will be described. The positive bus 6 and the negative bus 7 are connected to the input side of the aforementioned converter circuit 3. This switching mechanism Sm is provided between the power generating device 2 and the converter circuit 3. In order to generate power by the power generating device 2, the output voltage of the DC power output from the converter circuit 3 is switched in multiple stages. Each arbitrary number is connected in series with eight The power generation modules 28 can be connected in parallel to the inverter circuit 3 with each power generation module group connected in series. This switching mechanism Sm has a plurality of switches S1 to S7, S1 and S17. The switches S1 to S7 are switches that can switch each of the negative poles 60 of the seven power generation modules 21 to 27 to a state of being connected to or disconnected from the negative bus bar 7. For example, as shown in Figure 5M, page 10 C \ 2D-CODE \ 91-06 \ 91106710.ptd 563286 5. As shown in the description of the invention (8), the switches S1 to S7 are respectively controlled by the npn type bipolar controlled by the control device 4 The transistor 61 is configured. The switches S11 to sn have the function of selectively connecting each of the positive electrodes 62 of the seven power generating modules 22 to 28 and one of the power generating modules adjacent to the positive electrode 62 to the positive bus bar 6 with a negative electrode 62 of ~ 27. For example, as shown in FIG. 6, the switches SI 1 to S1 7 are respectively composed of two-type bipolar transistors 63 and 64 controlled by the on-off control of the control device 4. A bipolar transistor 63 and a power generation mode adjacent to the positive electrode can be borrowed. The negative electrode 61 of the group is connected and separated, and the positive electrode 62 and the positive bus bar 61 are connected and separated by another bipolar transistor 64. Moreover, when the transistor 63 is turned on, the electric body 64 is disconnected, and when the transistor 64 is turned on The transistor ㈡ of the switches S11 ~ s 1 7 is equivalent to the first switching device, the transistor 63 of the switches S11 to S17 is equivalent to the second switching device, and the transistors S1 to S7 are equivalent to the second switching device. The crystal 61 is equivalent to the third switching device. The crystals 61 and 64 are only examples, and can be applied to: any switching element controlled by the switch. The switching element 5 of the converter circuit 3, 54 and Λ, also M0SFET (metal-oxide-semiconductor field-effect electric solar) can be applied to other switching elements. Next, the control device 4 will be described. As shown in the figure, the control device 4 is controlled by a CPU (Central Processing Unit) 65,: (ίίίϊ ΐ ) 66 and RAM (random access memory) 67 constitute the electricity-SIT ^ V 5 ^ iSl ^ ST. P, MS11 = 电 Λ 入 ΛOut interface 68. Set to detect the aforementioned single-phase AC system; input = clothes set 4. The switch will switch, control switches S1 ~ S7, and switch S11 ~: S11 ~: according to the voltage detection number in advance as described below. C. \ 2D.CODE \ 91-O6 \ 9l106710.ptd 563286 V. Description of the invention (9) The control programs of 51 ~ 54 are stored in the detent brake 6 of the control device 4. Door = 1 = 7 According to the control program of _66 The on / off control switches S1 to S7 and = S11 to S17, and in this way, the output voltage of the power generation is switched in stages. Because the power generation voltage of each power generation module 21 to 28 in this embodiment is about ^ 2: Γ, so as shown in Figure 8, the switch S1 ~ s? And switch ⑴ ~ This is the power generation mode τ 'when a parallel connection of all power generation failure 2 will output about! · 〇 ~ ι 2ν DC power. As shown in Figure 9 , Switch the electricity: 'Off' ~: Le and S1 i ~ S1 7, divide 8 power generation modules 21 ~ into 2 groups :: 4 groups of groups, and connect the two power generation modules of each group in series ( Taking this as the power generation type M2), in the four power generation module groups connected in parallel to the positive and negative busbars 6 and 7, the power generation device 2 outputs a DC of about 20 to 20 Force. As shown in Fig. Ο, the switches S1 to S7 and switches su to sn divide the eight power generation modules 21 to 28 into two groups of four each, and four power generation modules in each group are connected in series ( Taking this as the power generation mode M4), the two power generation module groups are connected in parallel to the positive and negative busbars 6 and 7 to generate DC power of about 4.0-4.8V. As shown in FIG. N, when the switch 1 to S7 and the switches sil to S17 are connected in series with eight power generating modules 21 to 28 (this is used as the power generation mode M8), the power generating device 2 outputs about 80 to 9 6V. DC power. · As shown in Fig. Lj, by the aforementioned control device 4, according to the AC waveform of the AC voltage of the single-phase AC system detected by the aforementioned voltage detector 70, the switches S1 to S7 and switches S11 to S17 are switched and controlled by Switching element 51 ~ C. \ 2D-CODE \ 91-O6 \ 91106710.ptd Page 12 563286 5. Description of the invention (54) 54. The output terminals 8 and 9 of the self-converter circuit 3 can be connected by solid lines M1, M2, M3, and M4 show the phase-change voltage waveform 71 AC power output to the single-phase AC system. In this case, according to the frequency of the single-phase AC system, the time 11, 12, 13, and 14 set on the computer can be set in advance, the switches S1 to S 7 and switches SI 1 to S17 can be switched, and the output voltage can be switched in stages. . Moreover, when the voltage of the single-phase AC system is switched from negative to positive, the switching elements 51, 5 4 are turned on, and when the voltage of the single-phase AC system is switched from positive to negative, The switching elements 5 3 and 5 2 are turned on, and the switching elements 51 and 54 are turned off. In the power generation system 1 described above, by switching the switches S1 to S7 and S11 to S17 of the switching mechanism in various modes, the DC output voltage output by the self-generation system 1 can be increased or decreased in stages. In addition, while the outputs of all the power generation modules 21 to 28 can be effectively utilized, as described above, only the DC output voltage can be switched in stages by only using the switches S1 to S7 and S11 to S1 7. Therefore, idling of the power generating modules 21 to 28 does not occur, and the utilization ratio of the power generating modules 21 to 28 can be sufficiently improved. Because parallel connection lines are provided in the middle section of each of the power generation modules 21 to 28, in the event that a part of the power generation unit fails or the power is not generated due to the shady current, the current also flows through the parallel connection lines as required and is surely output. Even if the plurality of switches si to S7 and S11 to S17 are switched, the change in voltage when the switches are switched is small, so noise or high-order error waves are unlikely to occur. = This simplifies the circuit configuration for reducing the filter capacity for noise or higher harmonic absorption or electromagnetic failure. Switching elements S1 ~ S7 ^

563286

The switching frequency of si 7 is smaller than the switching frequency of the switching elements of the PWM converter circuit. In addition, as for the switches S1 to S7 and sn to sn, the switching elements can be small and the switching loss can be reduced. = ^ It can also reduce the output voltage of the power generation module M when it is cloudy, morning, and dusk, change the switching mode of the switches S1 ~ S7, sn ~ sn, and adjust the voltage of DC power, so there is no need to set the boost chopping Device, and become a universal system with the same degree of freedom and freedom. Because the switches s 1 ~ S 7, s 1J-: S17 can be switched, it has the characteristics of increasing the output voltage in one step, reducing the output voltage step by step, reducing the output voltage in one step, and the output current is step = ^ plus plus Therefore, the power generation device 2 can be controlled at the maximum power point in the other-mentioned power generation system 1. Since the frequency of the power output from the self-converter circuit 3 can also be freely changed according to how the control device 4 controls, it is versatile and self-contained. = Excellent degree. Although the above description uses the voltage control to output AC power as an example, it can also be configured to output AC power through current control according to how the switches si ~ s7 and SI 1 ~ S1J are switched.

: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, and, enables the present invention to be easily understood, the above-mentioned embodiment takes the power generating device 1 having eight hair power modules 21 to 28 as an example for description. However, at home ^ = In the case of a power generation system connected to a commercial single-phase AC system, it must be configured and connected to an AC system with an effective value of loov and a peak value of about 140V. And = In view of the fact that ^ lowering of the power generation system will occur on cloudy days, morning, dusk, etc., it is better to set the maximum output voltage of the power generation system above 0V: This will be explained from Figure 1 3 to Figure 18 Examples of power generation systems. The power generation system shown in Figure 13 is a panel structure assembled on a panel.

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Since the output power of the power generating unit 30A is the same as that of the aforementioned unit, the power is 0.5 ~

The largest power transmission power (the output on sunny days ^ • ^ power generation modules 21A ~ 25A), and is configured to switch between the positive-side switches S81 ~ S84 with an appropriate value of 5.0 · 6.0 ~ 60V ° ~ S74; Number of negative-side switches: M1, M2, ..., M48 ", and" output voltage ". Figure 15 does not indicate" power generation. "The applicant has applied for multiple international applications, PCT / JP01 / 0 6 9 72, PCT. / JP〇1 /: m '; = = Proposed technology for making the power generation module of the aforementioned power generation module 21A into a panel-like structure. The power generation system 1A (power generation panel) described above is not only one piece, but also can be composed of multiple pieces of power The power generation system made of panels. No, the control device can only be set ^-group. For example, as shown in Figure 16, this power generation system u is also provided with two pieces of the aforementioned power generation (power generation panel) to switch the two pieces of power generation systems. Switching mechanism in series connection and parallel connection state. &Amp; The switching mechanism is composed of switches S65, S66, etc. The switch S65 can be connected to and disconnected from the circuit shown in the figure 'as described in the switches S1 to S7, for example, by npn type double Electrode crystal structure. Switch S 6 6 can be switched to any state connected to any contact , Not connected to a certain contact, like the aforementioned switches su ~ S17, which is composed of, for example, two npn-type bipolar transistors. The switching mechanism can be used to switch the two power generating devices 1 A into a series connection state and a parallel connection In addition, the output terminals 8β and 9B of the power generating device composed of the two power generating devices 1 A are connected to the AC system, and the power generating system is controlled by the control device, and its output current is related to the frequency and voltage of the AC system. "

563286

563286 V. Description of the invention (15) * ---- / The description of Figure 16 to Figure 17 Although the power generation system equipped with two power generation panels (generation system) is taken as an example, in fact, it can also be Set the plural ^ electrical side to 'configure it' and switch it to the parallel connection state and the serial connection state 'to output power suitable for the voltage or current of a commercial single-phase AC system for homes and the like. Since the power generation system shown in Fig. 13 and the power generation system shown in Fig. 6 have basically the same functions and effects as those of the power generation system 1 described above, descriptions thereof are omitted here. An example in which the aforementioned embodiment is modified in part ^ will be described. (1) Describe the power generation system 1, i A Of course, the filters and impedances of the circuits located on the output side of the converter circuit 3 are omitted, but in the actual power generation system, a filter or impedance is provided as required器 等。 And other. (2) Although the inverter circuits 3 and 3A will generate a single-phase AC, the inverter circuit will be used to convert the DC power generated by the power generation device 2 and 2A into three-phase AC. The DC power generated by the power generation device in this case is converted into AC power corresponding to each phase of the three-phase AC. (3) There is also a case where the entire power generation system 1 is made into a plate shape or a panel shape. There is also a case where the power generation system equipped with the power generation system shown in the foregoing Figures 3 to 3 is formed into a plate shape or a panel shape as shown in FIG. 16. (4) There is also a case where it is not necessary to separately manufacture each of the plurality of power generation modules 21 to 28, 21 a to 25, and eight, and the whole is produced in one piece. For example, the plurality of power generation modules in FIG. 13 can be made into a power generation module in appearance, or the structure with the plurality of power generation modules can be made in circuit as shown in FIG. 13. (5) Of course, the aforementioned power generation system 1, 1 A, of course, are connected to other external AC systems.

563286 V. Description of the invention (16) The excited-type power generation system is described as an example, but of course, the present invention can be applied to a self-excited type power generation system having a battery for storing power generation and a device for generating a reference AC voltage. Description of component numbers 1 Power generation system 2 Power generation device 3 Converter circuit 4 Control device 5 Voltage detector 6, 6A Positive busbar 7, 7A Negative busbar 8, 9, 8A, 9A Output terminals 21 to 28, 21A to 25A Power generation module 30 Power generation unit 30A ~ 30C Solar cell 31 Spherical semiconductor 32 P-type diffusion layer 33 pn junction 34 Silicon oxide insulator 35 Positive electrode 36 Negative electrode 37 Spherical semiconductor 38 η-type diffusion layer 39 pn junction

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V. Description of the invention (17) 40 Silicon oxide insulating film 41 Positive electrode 42 Negative electrode 43 Cylindrical semiconductor 44 η-type diffusion layer 45 ρη junction 46 P + diffusion layer 47 Silicon oxide insulator 48 Positive electrode 49 Negative electrode 51 to 54 Switching element 55 to 58 Reflow Diode 60, 60A negative 61 transistor 62, 62A positive 63 transistor 64 transistor 65 CPU 66 ROM 67 RAM 68 input / output interface S1 to S7, SI 1 to S17, S21 to S27, S71 to S74, S81 to S84 Switch C: \ 2D-CODE \ 91-06 \ 91106710.ptd Page 20 563286

C. \ 2D-C0DE \ 91-06 \ 91106710.ptd Page 21 563286 The diagram briefly illustrates the configuration diagram of the power generation system; Figure 2 is a sectional view of the power generation unit; Figure 3 is a sectional view of the power generation unit; Figure 4 is Sectional view of power generation unit; Figure 5 is a transistor circuit diagram showing the configuration of switches si ~ S7 'Figure 6 is a transistor circuit diagram showing the configuration of switches S11 ~ S1 7' Figure 7 is a block diagram of the control device of the power generation system '> Figure 8 shows the effect of the power generation system in the power generation mode M1: Figure 9 shows the operation of the power generation system in the power generation mode M2. Figure 10 shows the operation of the power generation system in the power generation mode M 4 " Erming diagram 'Figure 11 is a diagram illustrating the operation of the power generation system in the power generation mode M8 / Figure 1 2 is a graph of the voltage waveform of the DC power output from the power generation system of Figure 1 and the voltage waveform of the single-phase AC system; Figure 1 3 is the configuration diagram of the power generation system in a changed form; Figure 1 4 is the circuit diagram of the power generation module; Figure 1 5 is the explanatory diagram of the power generation mode and output voltage of the power generation system of Figure 13; Figure 16 is provided with 2 groups Figure 13 is a configuration diagram of the power generation system of the power generation system; 1 7 is an explanatory diagram of the output voltage of the power generation system in Figure 16; Figure 1 8 is the voltage waveform of the DC power output from the power generation system and the voltage waveform of the single-phase AC system; Figure 19 to Figure 2 2 shows the previous The diagram of the technology is “among them”. Figure 1 shows the overall configuration of the 9-series PWM power generation system. Figure 20 shows the command voltage sine wave, carrier wave, and rectangular wave AC of the PWM mode.

C: \ 2D-roDE \ 91-06 \ 91106710.ptd Page 22 563286 The diagram briefly illustrates the timing diagram of voltage, etc .; Figure 2 is the overall configuration diagram of the power generation system with battery switching; Figure 2 2 (A) is Fig. 19 is a diagram of a voltage waveform generated by the power generation system in Fig. 19; Fig. 2 (B) is a diagram of a current waveform generated by the power generation system in Fig. 19.

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Claims (1)

563286 / 、 The application scope of the patent application for the Qing dynasty generation system is equipped with a power generation device that generates DC power and a converter circuit that converts the generated DC power to AC power. One is: a 7 x electric device is a plurality of power generation modules, each having a plurality of power generation modules each having a plurality of power generation units i or a power generation unit; having: a tfff row connected to the input side of the aforementioned converter circuit;丨 Switching device, which can connect and separate the positive poles of the multiple generating modules with the positive busbar; ^ Several second switching devices, which can connect the positive poles of the multiple generating modules to 4: Negative electrode connection and disconnection and a third switching device, which can connect and disconnect each negative electrode of the plurality of power generation modules with the negative bus bar. ^ · The power generation system and system of item 1 of the patent scope, such as the above, in which the above-mentioned plurality of right ^ Λ + and the third switching device are each composed of a semiconductor switching element. In the second and third switching devices, the control device for the output voltage of the power generating device is described in stages. Lightning generation: The power generation system of item 2 in the f range, the above-mentioned plural two ... plural groups are configured to be controlled by the aforementioned control device, and the switch device is connected in series. The ^ > group of multiple power generation modules are connected in parallel to the positive and negative buses. For the power generation system under the scope of the second patent application, the front circuit is provided with a plurality of engraved engravings _ /, T ~ XL, and w Q control. Components of these semiconductor switching elements C: \ 2D-OODE \ 91-O6 \ 91106710.ptd Page 24 563286 5 · If the scope of the patent is cleared, the detection power supply system is provided in the power generation system of the aforementioned item: The voltage detection of the voltage of the AC power system in the first $ > ^ # is set according to the detection of the voltage detection device. Signal, control device and a plurality of semiconductor switches 7C of the aforementioned converter circuit. τ 6 · = The power generation system according to the scope of the patent application, wherein the plurality of power generation units of the aforementioned power generation module are arranged in a matrix of a plurality of columns and a plurality of rows, connected in parallel and in series. 7. The power generation system according to item 1 of the patent application range, wherein each of the aforementioned power generation units is composed of a solar cell having a pn junction shape on a granular semiconductor. 8. The power generation system according to item 1 of the scope of patent application, wherein the power generation device is composed of a fuel cell in which a plurality of storage batteries are stacked, and each of the power generation units is composed of the storage batteries. C: \ 2D-CDDE \ 91 -06 \ 91106710.ptd Page 25