JP2612639B2 - Solar cell system - Google Patents
Solar cell systemInfo
- Publication number
- JP2612639B2 JP2612639B2 JP2332789A JP33278990A JP2612639B2 JP 2612639 B2 JP2612639 B2 JP 2612639B2 JP 2332789 A JP2332789 A JP 2332789A JP 33278990 A JP33278990 A JP 33278990A JP 2612639 B2 JP2612639 B2 JP 2612639B2
- Authority
- JP
- Japan
- Prior art keywords
- power
- solar cell
- day
- storage battery
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、住宅等の建築物に電力を供給するための太
陽電池システムに係わり、特に、天候不良による太陽電
池の電力の不足分を電気予報に基づいて前日の夜間電力
によって補う太陽電池システムに関するものである。Description: TECHNICAL FIELD The present invention relates to a solar cell system for supplying power to a building such as a house, and more particularly to an electric power supply for a solar cell system, which is used to supply a power shortage of a solar cell due to bad weather. The present invention relates to a solar cell system supplemented by nighttime power of the previous day based on a forecast.
［従来の技術］ 従来より、住宅等においては、太陽光を有効に取り入
れて、照明等に利用できるように住宅を設計するソーラ
ーハウスと呼ばれるものがあった。[Related Art] Conventionally, in houses and the like, there has been a so-called solar house in which houses are designed so that sunlight can be effectively taken in and used for lighting and the like.
また、近年、太陽光を照明だけではなく、給湯、空調
用エネルギー、その他のエネルギーとして利用するため
に、集光装置、集熱装置等を備えて太陽エネルギーを積
極的に利用するアクティブソーラーハウスと呼ばれるも
のが現れている。In recent years, in order to use sunlight not only for lighting but also for hot water supply, energy for air conditioning, and other energy, there is an active solar house equipped with a condensing device, a heat collecting device, etc., and actively using solar energy. What is called is appearing.
さらに、太陽エネルギーを有効に利用するためには、
太陽光をエネルギーとして汎用性の高い電力に変換して
くれる太陽電池を用いる方法があるが、従来、太陽電池
は高価であり、太陽電池を設置するための設備投資と、
電力会社から供給される電力の価格とを考慮した場合に
経済的に問題があった。Furthermore, to use solar energy effectively,
There is a method of using solar cells that convert sunlight into energy that is highly versatile as energy.However, conventionally, solar cells are expensive, and capital investment for installing solar cells and
There is an economic problem when considering the price of the electric power supplied from the electric power company.
しかし、近年の技術革新による太陽電池の価格の低下
と面積及び日射量当たりの起電力の増加に伴い太陽電池
を利用したソーラーハウスも実用化の段階に入って来
た。However, with the reduction in the price of solar cells and the increase in electromotive force per area and solar radiation due to recent technological innovation, solar houses using solar cells have also entered the stage of practical use.
また、家庭におけるエアコン等の電化製品の普及や、
電化製品の大型化などのために家庭における電力消費量
が増加しているのに対して、地球の環境を考えた場合
に、火力発電をする際の化石燃料の消費による大気中の
二酸化炭素の増加に伴う地球の温暖化現象や、原子力発
電所が万一事故を起こした場合の致命的な環境破壊や、
原子力発電所から出る放射性廃棄物の問題等を考慮する
と、これ以上の発電設備の増加による電力供給量の増加
には問題がある。Also, the spread of home appliances such as air conditioners,
Household power consumption is increasing due to the increase in size of electrical appliances, etc., while considering the global environment, the consumption of fossil fuels in thermal power generation Global warming due to the increase, catastrophic environmental destruction in the event of a nuclear power plant accident,
In view of the problem of radioactive waste from nuclear power plants, there is a problem in increasing the amount of power supply by further increasing the number of power generation facilities.
そこで、クリーンな太陽エネルギーを家庭用の電力と
して利用することができる太陽電池システムが望まれて
いた。Therefore, a solar cell system that can use clean solar energy as household power has been desired.
［発明が解決しようとする課題］ ところで、太陽電池によって電力を供給する場合に
は、当然、太陽電池に当たる光量により発電量が異な
り、天候、季節等による日射量の変動で、使用できる電
力が極端に減少するという問題点があった。[Problems to be Solved by the Invention] When power is supplied by a solar cell, the amount of power generation naturally varies depending on the amount of light that strikes the solar cell. There was a problem that it was reduced.
また、太陽電池は、太陽光の当たらない夜間は、ほと
んど発電しなくなり、夜間及び天候不順な日には電力会
社からの電力の供給を受けるか、予め太陽電池の発電容
量を大きなものとし、天候の良い昼間の余剰電力を蓄電
池に充電しておき、この蓄電池の電力を利用するなどし
なければならなかった。In addition, solar cells hardly generate power during the night when sunlight is not applied, and at night and when weather is unfavorable, power is supplied from a power company or the power generation capacity of the solar cells is increased in advance, It was necessary to charge the storage battery with good daytime surplus power and use the power of this storage battery.
しかし、太陽電池の発電容量を大きなものとした場合
には、太陽電池の面積及び設備投資が大きなものとな
り、また、発電容量を大きなものとしても天候不順が長
く続いた場合には、夜間の消費電力まで賄うことが困難
であるという問題点があった。However, if the power generation capacity of the solar cell is made large, the area and capital investment of the solar cell become large, and if the unusual weather continues for a long time even if the power generation capacity is made large, the nighttime consumption will increase. There was a problem that it was difficult to cover even electric power.
また、電力会社から電力の供給を受ける場合には、主
に電力の供給を受けるのが夜間であることから通常の契
約で電力の供給を受けるより、夜間電力契約で電力の供
給を受けた方がコストがかからず、さらに、電力消費の
少ない夜間の電力を使用することにより発電設備を有効
に利用することができる。しかし、夜間電力では、天候
不順な昼間の電力供給を受けることができないという問
題点があった。Also, when receiving power supply from a power company, it is better to receive power supply under a nighttime power contract rather than under a normal contract because power supply is mainly received at night. However, power generation facilities can be effectively used by using nighttime power, which is low in cost and consumes little power. However, the nighttime electric power has a problem that it is not possible to receive the electric power supply during the daytime when the weather is irregular.
本発明は、上記事情に鑑みてなされたものであり、そ
の目的とするところは、太陽電池により住宅等で消費さ
れる電力を供給するとともに、天候不順の際に太陽電池
による電力供給が不足した場合に備えて夜間電力を有効
に利用することができる太陽電池システムを提供するこ
とにある。The present invention has been made in view of the above circumstances, and aims to supply power to be consumed in a house or the like by a solar cell, and to have a shortage of power supply by the solar cell during unseasonable weather. An object of the present invention is to provide a solar cell system that can effectively use nighttime power in preparation for a case.
［課題を解決するための手段］ かかる目的を達成するために、本発明の太陽電池シス
テムは、住宅等に電力を供給する太陽電池と、この太陽
電池による電力供給の不足分を補う蓄電池と、天気予報
受信手段と、当日受信した翌日の天気予報から翌日の日
射量を決定するとともにこの日射量から前記蓄電池の充
電レベルを計算する演算手段と、前記蓄電池の当日の充
電レベルを測定する測定手段と、この測定手段により測
定される当日の充電レベルが、前記演算手段により計算
された翌日の充電レベルに達するまで前記蓄電池に当日
の夜間電力を充電する充電手段とからなるものである。[Means for Solving the Problems] In order to achieve the above object, a solar cell system of the present invention includes a solar cell that supplies power to a house or the like, a storage battery that compensates for a shortage of power supply by the solar cell, Weather forecast receiving means, calculating means for determining the amount of solar radiation of the next day from the next day's weather forecast received on the day and calculating the charge level of the storage battery from the amount of solar radiation, and measuring means for measuring the charge level of the storage battery of the day And charging means for charging the storage battery with nighttime power of the day until the charging level of the day measured by the measuring means reaches the charging level of the next day calculated by the calculating means.
［作用］ 上記構成によれば、まず、当日に、この日に予想され
る翌日の天気予報を天気予報受信手段によって受信す
る。次に演算手段によって、受信された翌日の天気予報
から翌日得られるであろう日射量を決定するとともにこ
の翌日の日射量から翌日の蓄電池の充電レベルを計算す
る。次に測定手段によって蓄電池の当日の充電レベルを
測定し、この当日の充電レベルが演算手段により決定さ
れた翌日の充電レベルに達するまで、充電手段によって
蓄電池に当日の夜間電力を充電する。これにより、翌日
不足すると予測される電力量を、当日の夜間電力を用い
て蓄電池に充電することが可能になり、蓄電池に余分な
電力を充電することで生じるエネルギー損失が減少す
る。[Operation] According to the above configuration, first, on the current day, a weather forecast receiving unit expects the next day's weather forecast expected on this day. Next, the amount of insolation that will be obtained the next day is determined from the received weather forecast of the next day by the calculation means, and the charge level of the storage battery of the next day is calculated from the amount of insolation of the next day. Next, the charging level of the storage battery on the day is measured by the measuring means, and the charging means charges the storage battery with the nighttime power of the day until the charging level of the day reaches the charging level of the next day determined by the arithmetic means. This makes it possible to charge the storage battery with the amount of power predicted to be insufficient the next day using the nighttime power of the current day, thereby reducing energy loss caused by charging the storage battery with excess power.
［実施例］ 以下、本発明の実施例を図面を参照しながら説明す
る。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は、本発明の一実施例の概略を示す図面であっ
て、本実施例の太陽電池システムは、住宅Ａ等に電力を
供給する太陽電池１と、この太陽電池１による電力供給
の不足分を補う蓄電池２と、天気予報受信手段３と、当
日受信した翌日の天気予報から翌日の日射量を決定する
とともにこの日射量から蓄電池２の翌日の充電レベルを
計算する演算手段４と、蓄電池２の当日の充電レベルを
測定する測定手段５と、この測定手段５により測定され
る当日の充電レベルが、演算手段４により計算された翌
日の充電レベルに達するまで蓄電池２に当日の夜間電力
を充電する充電手段６とからなるものである。FIG. 1 is a view schematically showing an embodiment of the present invention. A solar cell system according to this embodiment includes a solar cell 1 for supplying power to a house A and the like, and a power supply by the solar cell 1. A storage battery 2 for supplementing the shortage, a weather forecast receiving means 3, a calculating means 4 for determining the amount of solar radiation of the next day from the weather forecast of the next day received on the day, and calculating the charge level of the storage battery 2 from the solar radiation amount on the next day; A measuring means 5 for measuring the charge level of the storage battery 2 on the day, and the nighttime power of the storage battery 2 until the charge level of the day measured by the measurement means 5 reaches the charge level of the next day calculated by the arithmetic means 4. And charging means 6 for charging.
次に、本実施例の太陽電池システムを詳細に説明す
る。Next, the solar cell system of the present embodiment will be described in detail.
前記太陽電池１は、住宅Ａの南側の屋根の上面に取り
付けられ、その面積は、昼間の通常の住宅の電力消費量
をカバーできる28kw〜4kw程度の発電力を有するように
南側の屋根の面積の範囲の中で20m2〜40m2程度とする。
なお、太陽電池１の面積は、設置される住宅Ａの消費電
力や住宅Ａの位置や屋根の傾きや日射量等を考慮して決
定されるものである。The solar cell 1 is mounted on the upper surface of the roof on the south side of the house A. The area of the solar cell 1 is about 28 kw to 4 kw which can cover the power consumption of a normal house in the daytime. and 20m 2 ~40m 2 approximately in the range of.
Note that the area of the solar cell 1 is determined in consideration of the power consumption of the house A to be installed, the position of the house A, the inclination of the roof, the amount of solar radiation, and the like.
前記蓄電池２は、鉛蓄電池であり、その容量は、太陽
電池１による１日の電力供給分の２倍程度とする。The storage battery 2 is a lead storage battery, and its capacity is about twice as large as the daily power supply by the solar cell 1.
前記天気予報受信手段３は、コンピュータ通信を行う
ための電話回線用モデム3aとパソコン4aからなるもの
で、予め天気予報を、電話回線7aを利用してホストコピ
ュター７から本実施例の太陽電池システムを備えた各住
宅Ａに送信するものである。The weather forecast receiving means 3 comprises a telephone line modem 3a for performing computer communication and a personal computer 4a. The weather forecast is previously sent from the host computer 7 using the telephone line 7a to the solar cell system of the present embodiment. This is transmitted to each house A provided.
天気を送信する際には、快晴、晴れ、曇り、雨、の４
つに分けて送信する。When transmitting the weather, it is clear, sunny, cloudy, rain, 4
And send them separately.
前記演算手段４はパソコン4a等からなり、受信した天
気の快晴、晴れ、曇り、雨の日の日射量の値を太陽電池
の天候による起電力の統計的な値から1.0・0.75・0.5・
0.2とし、この数値から翌日の蓄電池２の充電レベルを
計算するようになっている。The arithmetic means 4 comprises a personal computer 4a or the like, and calculates the value of the received solar radiation on a sunny day, sunny, cloudy or rainy day from the statistical value of the electromotive force of the solar cell by 1.0, 0.75, 0.5.
0.2, the charge level of the storage battery 2 on the next day is calculated from this numerical value.
なお、この値は、太陽電池１の能力や、屋根の傾き
や、屋根の上面の方向等により変化するものであり、こ
れらを考慮して決定されるものである。This value changes depending on the performance of the solar cell 1, the inclination of the roof, the direction of the upper surface of the roof, and the like, and is determined in consideration of these.
なお、パソコン4aにおいては、前記数値に季節による
日照時間の違い、季節による住宅Ａの電力消費量の違い
等を予め係数化し、この係数を前記日射量の値にかけて
補正するようになっている。In the personal computer 4a, differences in the sunshine hours according to the seasons, differences in the power consumption of the house A due to the seasons, and the like are converted into coefficients in advance, and the coefficients are corrected by multiplying the coefficient by the value of the amount of solar radiation.
前記測定手段５は、鉛蓄電池２の充電レベルを測定す
るもので、鉛蓄電池２の充電レベルは、電解液の比重を
測定することにより知ることができるので、鉛蓄電池２
に、比重を電流等の信号として出力できる周知の比重計
を設置することにより、充電レベルを比重計からAD変換
器を介して前記演算手段４となるパソコン4aに入力する
ことができるようになっている。The measuring means 5 measures the charge level of the lead-acid battery 2. Since the charge level of the lead-acid battery 2 can be known by measuring the specific gravity of the electrolytic solution,
By installing a well-known hydrometer capable of outputting the specific gravity as a signal such as a current, the charging level can be input from the hydrometer to the personal computer 4a serving as the arithmetic means 4 via an AD converter. ing.
従って、前記パソコン4aにより、蓄電池２の放電によ
り補充電が必要となる比重の値を充電レベル０とし、充
電により電解液が元の硫酸の比重に戻ったときの充電レ
ベルを100とするようになっている。そして、蓄電池２
の容量は、太陽電池１の発電能力の２倍程度に余裕を持
たせているので、０から50までの充電レベルは、天気予
報がはずれた場合の予備電力としている。従って、日射
量が１の場合は、蓄電池の電力を使用せずに、太陽電池
１によって電力を賄うために蓄電池１の充電レベルを50
とし、日射量が０の場合は、太陽電池１を使用できない
ので、蓄電池２ですべての電力を賄うために充電レベル
を100とする。すなわち、充電レベルをＬとし、日射量
の値をＳとした場合に、充電レベルＬを次式で現すも
のとする。Therefore, the personal computer 4a sets the value of the specific gravity at which supplementary charge is required by discharging the storage battery 2 to the charge level 0, and sets the charge level when the electrolyte returns to the original specific gravity of sulfuric acid to 100 by charging. Has become. And storage battery 2
Has a margin about twice as large as the power generation capacity of the solar cell 1, and the charge levels from 0 to 50 are used as reserve power when the weather forecast goes wrong. Therefore, when the amount of solar radiation is 1, the charge level of the storage battery 1 is set to 50 in order to cover the power by the solar cell 1 without using the power of the storage battery.
If the amount of solar radiation is 0, the solar cell 1 cannot be used, so the charging level is set to 100 in order to allow the storage battery 2 to cover all the power. That is, when the charge level is L and the value of the amount of solar radiation is S, the charge level L is expressed by the following equation.
……Ｌ＝50（２−Ｓ） なお、この式は、一例であって、予備の充電レベル
の変更や、住宅Ａの消費電力の増加・減少等によって変
更してかまわない。... L = 50 (2-S) This equation is merely an example, and may be changed by changing the spare charge level or increasing / decreasing the power consumption of the house A.
前記充電手段６は、交流を直流に変換し蓄電池２に充
電するものであり、また本実施例では、太陽電池１及び
蓄電池２及び夜間電力を、太陽電池１の発電量に対応し
て、住宅Ａに供給するようにパソコン4aによってコント
ロールされる配電盤6aとなっている。The charging means 6 converts alternating current into direct current and charges the storage battery 2. In this embodiment, the charging means 6 converts the solar cell 1, the storage battery 2, and the nighttime electric power into the house according to the power generation amount of the solar cell 1. A switchboard 6a controlled by a personal computer 4a so as to supply the power to A.
そして、蓄電池２への充電は、夜間電力の伝送開始時
から、比重計5aから送られる鉛蓄電池２の電解液の比重
の値が演算手段によって決められた値になるまで続けら
れる。The charging of the storage battery 2 is continued from the start of the nighttime power transmission until the value of the specific gravity of the electrolytic solution of the lead storage battery 2 sent from the hydrometer 5a reaches the value determined by the calculating means.
本実施例の太陽電池システムを使用して、住宅Ａに電
力を供給する場合には、まず、太陽電池システムをコン
トロールするパソコン4aに、翌日の天気予報が電話回線
7aを介して送られる。そして、パソコン4aは演算手段４
として、天気予報の結果から翌日の日射量を推測する。
そして、翌日住宅Ａで消費される電力のうち太陽電池に
よる電力供給では不足となると予想される電力量分を補
充できるように蓄電池２の充電レベルを決める。この際
に、この充電レベルには、天気予報が外れた場合の予備
電力分も含めておく。そして、夜間電力の供給が開始さ
れたところで、蓄電池２に充電を開始し、比重計5aによ
り測定された充電レベルが決められた充電レベルに達し
たところで、充電を停止する。なお、充電を開始する際
に、すでに蓄電池２の充電レベルがパソコンによって決
められた充電レベル以上であった場合には、充電が行な
われない。When power is supplied to the house A using the solar cell system of the present embodiment, first, a personal computer 4a for controlling the solar cell system transmits a weather forecast for the next day via telephone line.
Sent via 7a. Then, the personal computer 4 a
Then, the amount of solar radiation on the next day is estimated from the result of the weather forecast.
Then, the charging level of the storage battery 2 is determined so that the amount of power that is expected to be insufficient by the power supply from the solar cell among the power consumed in the house A the next day can be supplemented. At this time, this charge level also includes the amount of reserve power when the weather forecast is off. Then, when the supply of nighttime power is started, charging of the storage battery 2 is started, and when the charging level measured by the hydrometer 5a reaches the determined charging level, charging is stopped. When the charging is started, if the charging level of the storage battery 2 is already higher than the charging level determined by the personal computer, the charging is not performed.
そして、配電盤6aより太陽電池１からの電力を中心と
して、蓄電池２の電力及び夜間電力を補助として、住宅
に電力が供給される。また、太陽電池１の電力のうち消
費されないものについては、蓄電池２に充電する。Then, the power is supplied to the house from the switchboard 6a with the power of the storage battery 2 and the nighttime power as the main power mainly from the solar cell 1. The storage battery 2 is charged with respect to the power of the solar cell 1 that is not consumed.
従って、天気予報どうりの天気の場合は、昼間、太陽
電池１の電力と前日に充電された予備電力を除く蓄電池
２の電力で住宅Ａの消費電力が賄われ、夜間は、蓄電池
２と夜間電力とによって賄われる。Therefore, in the case of the weather forecast, the power consumption of the house A is covered by the power of the solar cell 1 and the power of the storage battery 2 excluding the reserve power charged on the previous day in the daytime. Powered by electricity.
また、天気予報が外れて天候が良くなった場合は、充
電された電力が余ることになり、翌日用に持ち越され
る。そして、天気予報が外れて天候が悪くなった場合
は、蓄電池２に予備として充電された電力が使用され
る。Also, if the weather forecast goes off and the weather gets better, the charged power will be left over and will be carried over for the next day. Then, when the weather forecast is deviated and the weather worsens, the power stored in the storage battery 2 as a backup is used.
以上説明したように、本実施例の太陽電池システムに
よれば太陽電池１と天気予報に基づいて夜間電力により
充電された蓄電池２とで住宅等の消費電力を効率良く供
給することができる。As described above, according to the solar cell system of the present embodiment, the power consumption of a house or the like can be efficiently supplied by the solar cell 1 and the storage battery 2 charged with nighttime electric power based on the weather forecast.
そして、太陽電池１と、一般の電力よりコストの低い
夜間電力とにより家庭の電力を賄うことにより住宅の電
力にかかるコストを下げることができる。Then, by supplying the power of the home with the solar cell 1 and the night power which is lower in cost than the general power, the cost of the power of the house can be reduced.
また、本実施例の太陽電池システムにおいては、天気
予報に基いて、翌日必要な電力を前日に充電するように
しているので、充電及び放電の際の電力の損失や、自己
放電による電力の損失を削減し、ランニングコストを下
げることができる。Further, in the solar cell system according to the present embodiment, the necessary power for the next day is charged the previous day based on the weather forecast, so that the power loss during charging and discharging and the power loss due to self-discharge And running costs can be reduced.
さらに、太陽電池１と夜間電力による住宅の昼間の消
費電力を賄うことができるので、夏の暑い日のように、
電力会社において電力の供給量がピークに達するとき
に、本実施例の太陽電池システムを備えた住宅では電力
会社の電力を消費しなくても済み、電力供給のピークの
値を下げることができる。従って、電力を蓄えることが
困難なために、電力供給のピークに合わせて建設される
発電設備の削減もしくは増加の抑制をすることができる
とともに、発電設備からの化石燃料の消費による二酸化
炭素、原子力発電による放射性廃棄物等を削減もしくは
増加を抑制して環境破壊が進むのを抑制することができ
る。Furthermore, since the daytime power consumption of the house by the solar cell 1 and nighttime power can be covered, like a hot summer day,
When the amount of power supply reaches a peak in a power company, a house equipped with the solar cell system according to the present embodiment does not need to consume the power of the power company, and the peak value of the power supply can be reduced. Therefore, since it is difficult to store power, it is possible to reduce or suppress the increase in the number of power generation facilities constructed at the peak of the power supply, and to reduce carbon dioxide and nuclear power consumption due to fossil fuel consumption from the power generation facilities. It is possible to reduce or suppress an increase in radioactive waste and the like due to power generation, thereby suppressing the progress of environmental destruction.
なお、本実施例では、天気予報受信手段３は、電話回
線7aによるパソコン通信としたが、広い地域の太陽電池
システムを備えた住宅用に、通信衛星によって天気予報
を送信し、この天気予報を各地域の支局で受信し、受信
した天気予報を電話回線7aを介してパソコン通信等のデ
ータ通信により送信し、これをコンピュータにより受信
するものとしてもよい。また、太陽電池システム用に天
気予報を送信するのではなく、テレビ放送の文字放送に
よる天気予報を周知の画像解析方法によりパソコンに読
み込むものとしてもよい。In the present embodiment, the weather forecast receiving means 3 is a personal computer communication via the telephone line 7a. However, the weather forecast is transmitted by a communication satellite to a home equipped with a solar cell system in a wide area, and the weather forecast is transmitted. The local weather office may receive the weather forecast, transmit the received weather forecast by data communication such as personal computer communication via the telephone line 7a, and receive the data by a computer. Further, instead of transmitting the weather forecast for the solar cell system, the weather forecast by teletext of a television broadcast may be read into a personal computer by a known image analysis method.
なお、天気予報から日射量を推測する方法としては、
天気を４分割しているが、実際の天気予報のように天気
を細分化し、また、翌日の経時的な天気の変化などを入
れたものとしても良い。As a method of estimating the amount of solar radiation from the weather forecast,
Although the weather is divided into four parts, the weather may be subdivided as in an actual weather forecast, and a change in weather over the next day may be included.
また、本実施例の太陽電池システムは、かならずしも
昼間の住宅Ａの全体の電力を賄うものではなく、住宅に
おける消費電力量、太陽電池システムにかかる設備投資
額、屋根の面積等を考慮して、たとえば空調関係の電力
だけを賄うものとしてもよい。In addition, the solar cell system of the present embodiment does not always cover the entire power of the house A in the daytime, and takes into consideration the amount of power consumption in the house, the amount of capital investment for the solar cell system, the area of the roof, and the like. For example, only electric power related to air conditioning may be provided.
［発明の効果］ 以上、詳細に説明したように、本発明の太陽電池シス
テムによれば、太陽電池と、蓄電池と、天気予報受信手
段と、翌日の天気予報に基づき蓄電池の充電レベルを決
める演算手段と、蓄電池の充電レベルを測定する測定手
段と、蓄電池に当日の夜間電力を充電する充電手段とに
より構成したので、以下のような優れた効果を奏するこ
とができる。[Effects of the Invention] As described above in detail, according to the solar cell system of the present invention, the solar battery, the storage battery, the weather forecast receiving means, and the calculation for determining the charge level of the storage battery based on the next day's weather forecast Since it is constituted by the means, the measuring means for measuring the charge level of the storage battery, and the charging means for charging the storage battery with the nighttime power of the day, the following excellent effects can be obtained.
（ａ）太陽電池により住宅等で消費される電力を供給す
るとともに、太陽電池のみでは翌日不足すると予測され
る電力量を当日の夜間電力を用いて蓄電池に充電するこ
とにより、住宅等にて必要な電力量を安定した状態で自
動的に、しかも効率良く供給することができる。(A) Supplying power consumed in a house or the like by a solar cell and charging the storage battery using the nighttime power of the day to a storage battery using the amount of power expected to be insufficient the next day with the solar cell alone, so that the house battery or the like is required. Power can be automatically and efficiently supplied in a stable state.
（ｂ）太陽電池と夜間電力とにより住宅の電力を賄うこ
とにより住宅の電力にかかるコストを下げることができ
る。(B) The cost for the power of the house can be reduced by supplying the power of the house with the solar cell and the nighttime power.
（ｃ）当日予報される翌日の電気予報に基づいて、翌日
必要な電力を当時の夜間電力を用いて蓄電池に充電する
ようにしているので、充電及び放電の際の電力の損失
や、自己放電による電力の損失を削減し、蓄電池のラン
ニングコストを下げることができる。(C) Based on the electric forecast for the next day, which is forecasted on the day, the necessary power for the next day is charged to the storage battery using the nighttime power at that time, so that power loss and self-discharge during charging and discharging are performed. And the running cost of the storage battery can be reduced.
（ｄ）さらに、太陽電池と夜間電力とにより住宅の昼間
の消費電力を賄うことができるので、夏の暑い日のよう
に、電力会社において電力の供給量がピークに達すると
きに住宅において電力会社の電力を消費しなくても済
み、電力供給のピークの値を下げることができる。従っ
て、電力を蓄えることが困難なため、電力供給のピーク
に合わせて建設される発電設備の削減もしくは増加の抑
制をすることができるとともに、発電設備からの化石燃
料の消費による二酸化炭素、原子力発電による放射性廃
棄物等を削減もしくは増加を抑制して環境破壊が進むの
を抑制することができる。(D) Further, since the daytime power consumption of the house can be covered by the solar cell and the nighttime power, when the power supply reaches a peak in the power company, as in a hot summer day, the power company in the house. Power consumption, and the peak value of power supply can be reduced. Therefore, since it is difficult to store power, it is possible to reduce or suppress the increase in power generation facilities constructed in accordance with the peak of power supply, and to reduce carbon dioxide and nuclear power generation due to fossil fuel consumption from power generation facilities. It is possible to suppress the reduction or increase of radioactive waste and the like, thereby suppressing the progress of environmental destruction.
第１図は本発明の一実施例を示すものであって、太陽電
池システムの概略図である。 １……太陽電池、２……蓄電地、 ３……天気予報受信手段、 ４……演算手段、５……測定手段、 ６……充電手段。FIG. 1 shows an embodiment of the present invention and is a schematic view of a solar cell system. DESCRIPTION OF SYMBOLS 1 ... Solar cell, 2 ... Power storage area, 3 ... Weather forecast receiving means 4, ... Calculation means, 5 ... Measurement means, 6 ... Charging means.
Claims (1)
を、当日予報される翌日の天気予報に基づき当日の夜間
電力を用いて充電する太陽電池システムであって、 住宅等に電力を供給する太陽電池と、この太陽電池によ
る電力供給の不足分を補う蓄電池と、天気予報受信手段
と、当日受信した翌日の天気予報から翌日の日射量を決
定するとともにこの日射量から前記蓄電池の翌日の充電
レベルを計算する演算手段と、前記蓄電池の当日の充電
レベルを測定する測定手段と、この測定手段により測定
される当日の充電レベルが、前記演算手段により計算さ
れた翌日の充電レベルに達するまで前記蓄電池に当日の
夜間電力を充電する充電手段とからなる太陽電池システ
ム。1. A solar battery system for charging a storage battery that compensates for a shortage of power supply of a solar battery using nighttime power of the day based on a weather forecast of the next day, which is forecasted on the day, and supplies power to a house or the like. Solar cell, a storage battery that compensates for the shortage of power supply by this solar cell, a weather forecast receiving means, and determines the amount of insolation of the next day from the next day's weather forecast received on the day, and from the amount of insolation the next day of the storage battery Calculation means for calculating the charge level; measurement means for measuring the charge level of the storage battery on the day; and until the charge level of the day measured by the measurement means reaches the charge level of the next day calculated by the calculation means. A solar battery system comprising: charging means for charging the storage battery with nighttime power of the day.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332789A JP2612639B2 (en) | 1990-11-29 | 1990-11-29 | Solar cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332789A JP2612639B2 (en) | 1990-11-29 | 1990-11-29 | Solar cell system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200245A JPH04200245A (en) | 1992-07-21 |
| JP2612639B2 true JP2612639B2 (en) | 1997-05-21 |
Family
ID=18258833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2332789A Expired - Fee Related JP2612639B2 (en) | 1990-11-29 | 1990-11-29 | Solar cell system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612639B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003079054A (en) * | 2001-08-31 | 2003-03-14 | Sanyo Electric Co Ltd | Solar power generation system having storage battery |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008086109A (en) * | 2006-09-27 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Power supply system, network system, control method for network system, and control program for power supply system of network system |
| JP2008136259A (en) * | 2006-11-27 | 2008-06-12 | Matsushita Electric Ind Co Ltd | Network system, power supply system control method of the network system, and control program thereof |
| JP2008148442A (en) * | 2006-12-08 | 2008-06-26 | Daiwa House Ind Co Ltd | Charging/discharging control system of power storage section in natural energy utilizing power generation system |
| GB2457506A (en) * | 2008-02-18 | 2009-08-19 | Zeta Controls Ltd | Solar power system with storage element and mains electricity supply |
| KR100987562B1 (en) * | 2008-07-30 | 2010-10-12 | 한국전력공사 | DC power supply and management system for house and method thereof |
| JP2010213507A (en) * | 2009-03-11 | 2010-09-24 | Chugoku Electric Power Co Inc:The | Natural energy integrated power storage system and natural energy integrated power storage method |
| JP5405963B2 (en) | 2009-09-28 | 2014-02-05 | パナソニック株式会社 | Heat pump hot water supply system |
| CN102109210B (en) * | 2009-12-28 | 2013-06-26 | 三洋电机株式会社 | Air conditioning system |
| RU2566743C2 (en) * | 2010-02-02 | 2015-10-27 | Конинклейке Филипс Электроникс Н.В. | Control of energy for lighting devices operating on solar energy |
| EP2413449A3 (en) | 2010-07-30 | 2018-04-25 | Sanyo Electric Co., Ltd. | Air conditioning system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60256824A (en) * | 1984-06-01 | 1985-12-18 | Shikoku Electric Power Co Inc | Controller of solar power generating system |
| JPS6450723A (en) * | 1987-08-20 | 1989-02-27 | Mitsubishi Electric Corp | Solar power generator |
-
1990
- 1990-11-29 JP JP2332789A patent/JP2612639B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003079054A (en) * | 2001-08-31 | 2003-03-14 | Sanyo Electric Co Ltd | Solar power generation system having storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04200245A (en) | 1992-07-21 |
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