Mitsubishi Electric has developed solar-power technology and new ways to maximize

Mitsubishi Electric has developed a controller for solar tracking with maximum power point tracking (MPPT: maximumpowerpointtracking) technology, new ways. The foregoing is the company February 16, 2010 to “research results and development conference” on the public. According to reports, the use of technology, the output power can be compared with the average MPPT original to improve twofold. Inspiron 1300 battery Inspiron 1318 battery

Solar insolation intensity and output voltage V can be identified as a means of determining the maximum output current I. In the IV characteristics “in the value of the largest power point IV is called the maximum power point (MPP). The intensity of sunlight and variations in solar altitude and climate change, it will be a corresponding movement MPP. The tracking trajectory of its motion, the technology’s MPP output current is MPPT technology, MPPT power conditioner for one of the important functions.

Mitsubishi Electric has developed through the direct measurement of IV characteristics to achieve MPPT technology. More specifically, the power regulator powers input circuit part of the capacitor used in a time of discharge and then recharge it. Pricing by detecting the voltage and current changes, may be that its IV characteristic. “Charge-discharge lasts about 50 ms. If the range of 10 to several tens of minutes time, the power output of solar cells almost no impact” (the company). PA3383U-1BRS PA3395U-1BRS

Partially shielded solar cells could also play a role in

System using MPPT new Mitsubishi Electric of several pieces of solar cell modules will be horizontal or vertical connection that allows a portion of the shading of the module, etc., may also play a role.

MPPT Previous commonly used by a slight increase or decrease the output voltage V, was informed at that time the current I (or IV power) increase or decrease to keep constantly in motion MPP. Mitsubishi Electric said it “is like climbing blindfolded through a step-pin access to field conditions to determine the direction of mountaineering.” Solar cells in the absence of a dwelling where the shadow, IV-V characteristic displays a single peak for a single curve, so this method is feasible. apple PowerBook G4 12 inch battery apple MacBook 13 inch battery

However, some solar cell modules is obscured, the IV characteristics of the entire system will be displayed as a complex curve. IV-V characteristic curve shows multiple peaks as the “eight Takeyama,” the same. And, like the shadow of the sun and the movement of shelters, and snow and other obstacles that variations in the module the shape of the curve changes, sometimes MPP where the peak will move quickly to other peaks. To maintain the original MPPT technology, each time to select a record, to continue to follow its peak, the initial transfer of MPP to peak other is difficult to adjust. This case, the power of May could be below the original 1 / 2.

The new MPPT by the IV-V characteristics of short test to determine the MPP, so that each may choose exact MPP. Given this advantage, Mitsubishi Electric said: “In addition to providing a maximum output power, solar panels can be detected if the defect and the degree of staining panel surface. Vostro 1310 battery Vostro 1320 battery

Mitsubishi Electric is scheduled for October 2010 on the North American market with the 100kW-class supplier of power products for industrial air conditioner installed technology. According to introduction, and then face Japan on domestic industrial and domestic use regulatory power to promote the technology.

Total Station Battery Maintenance Experience

The batteries used in today’s total stations are generally two types: the special lithium battery and Ni-MH rechargeable batteries commonly used. Dedicated lithium-ion battery, lightweight, high capacity, environmental protection, virtually no “memory effect”, but the price is expensive, generic poor. Ni-MH VGP-BPS2 VGP-BPS2A battery is a high capacity battery discharge power of great depth, resistance to overcharge and over discharge, charging time is short and so obvious benefits. The most important is the nickel-metal hydride batteries are inexpensive and versatile.

No matter what type of battery, as the sale with the total station, generally, there will be training in the use of attention, some companies will even print a separate report on guidelines for the use of batteries and chargers. These instructions are some of the most basic but also very necessary to track maintenance as a method of recharging the battery should be selected, time to load. Unfortunately, many users of these instructions are often ignored or shelved. Recommendation: take a little time to read these guidelines, is absolutely necessary.

Users typically replace the PA3285U-3BRS PA3383U-1BRS battery, will acquire the habit of putting the battery in the way, wherever the place is clean and moist. The consequence is that the battery they get dirty easily, easy to contact metal (such as keys), etc. contact, easy to moisture, and it is the enemy of batteries. Recommendation: To avoid problems such as loss of electricity to keep the battery contacts clean and, if necessary, use a soft, clean and dry pasture.

A long time when you are not using total station, you must remove the battery from the machine and stored in a dry, cool environment. We all no objection to this point, but why here to make room for discussion? Because this relates to another question: For the Ni-MH F2024A F2024B battery, the battery must be completely discharged, then save, store, or online? Its two kinds of different views of what should be used? Many people think that we should adopt the first, but I thought that to save the battery charge is reasonable. Because: According to tests, Ni-MH battery to save the best conditions to save about 80% charged. Because the nickel-metal hydride batteries self-discharge high (10-15% a month or two), if the battery is completely discharged, then save it for a long time not to use, self Battery-discharge phenomenon will excessive battery discharge will damage the battery. You think of buying a new nickel-metal hydride rechargeable battery is not all there is electricity, which is the reason.